:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--font-sans:Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif:"Iowan Old Style", Baskerville, "Times New Roman", serif;--color-canvas:#f5f2eb;--color-canvas-deep:#eee9df;--color-surface:#faf8f3;--color-surface-raised:#fffdf9;--color-ink:#171816;--color-ink-soft:#343631;--color-text-muted:#62655e;--color-text-subtle:#777a72;--color-line:#d9d4c9;--color-line-strong:#b9b3a7;--color-moss:#477563;--color-moss-strong:#315f4e;--color-moss-soft:#dce8e1;--color-oxide:#7b302c;--color-oxide-strong:#61231f;--color-oxide-soft:#f1dfdc;--color-danger:var(--color-oxide);--color-danger-soft:var(--color-oxide-soft);--color-warning:#815b24;--color-warning-soft:#f3e7d2;--color-board:#d4ae70;--color-board-deep:#bd8e50;--color-board-line:#574329;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--space-16:64px;--space-24:96px;--space-32:128px;--page-top-space:clamp(28px, 3vw, 44px);--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-pill:999px;--shadow-hairline:0 1px 2px #1d1b160d;--shadow-soft:0 16px 48px #1d1b1614;--shadow-float:0 24px 70px #1d1b161f;--duration-fast:.12s;--duration-base:.18s;--duration-slow:.36s;--duration-hero:.8s;--ease-out:cubic-bezier(.22, 1, .36, 1);--ease-standard:cubic-bezier(.2, 0, 0, 1);--bg:var(--color-canvas);--bg-deep:var(--color-surface);--panel:var(--color-surface-raised);--panel-soft:#f0ece4;--panel-raised:#e8e3d9;--line:#2827221f;--line-strong:#28272238;--text:var(--color-ink);--muted:var(--color-text-muted);--muted-2:var(--color-text-subtle);--green:var(--color-moss);--green-hover:var(--color-moss-strong);--green-dark:#294d40;--danger:var(--color-danger);--board:var(--color-board);--board-dark:var(--color-board-deep);--shadow:var(--shadow-soft);--sidebar-width:0px}.friends-page{gap:24px;max-width:1180px;margin:0 auto;display:grid}.friends-hero{background:linear-gradient(135deg, var(--color-surface-raised), #eee9dfb8);border:1px solid var(--color-line);border-radius:var(--radius-lg);justify-content:space-between;align-items:end;min-height:210px;padding:clamp(28px,5vw,54px);display:flex;position:relative;overflow:hidden}.friends-hero:after{content:"";pointer-events:none;background-image:linear-gradient(#57432914 1px,#0000 1px),linear-gradient(90deg,#57432914 1px,#0000 1px);background-size:25px 25px;position:absolute;inset:0 0 0 62%;-webkit-mask-image:linear-gradient(90deg,#0000,#000);mask-image:linear-gradient(90deg,#0000,#000)}.friends-hero h1{font-family:var(--font-serif);letter-spacing:-.055em;margin:10px 0 14px;font-size:clamp(40px,6vw,66px);font-weight:470;line-height:1}.friends-hero p{color:var(--color-text-muted);max-width:620px;margin:0}.friends-summary{background:var(--color-ink);color:var(--color-surface-raised);z-index:1;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:116px;height:116px;display:flex;position:relative}.friends-summary strong{font-size:31px;font-weight:520;line-height:1}.friends-summary span{text-align:center;max-width:76px;margin-top:8px;font-size:10px}.friends-alert{background:var(--color-oxide-soft);border-radius:var(--radius-md);color:var(--color-oxide-strong);border:1px solid #7b302c2e;justify-content:space-between;align-items:center;gap:16px;padding:13px 16px;display:flex}.friends-loading{color:var(--color-text-muted);justify-content:center;align-items:center;gap:12px;min-height:420px;display:flex}.player-search,.friends-card{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-hairline)}.player-search{padding:clamp(20px,3vw,30px);position:relative}.player-search>label{margin-bottom:11px;font-size:18px;font-weight:620;display:block}.player-search>small{color:var(--color-text-subtle);margin-top:8px;display:block}.player-search__field{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:var(--radius-sm);align-items:center;gap:10px;padding:0 14px;display:flex}.player-search__field:focus-within{border-color:var(--color-moss);box-shadow:0 0 0 3px var(--color-moss-soft)}.player-search__field input{color:var(--color-ink);font:inherit;background:0 0;border:0;outline:0;width:100%;min-height:50px}.player-search__results{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-md);box-shadow:var(--shadow-float);z-index:20;max-height:360px;padding:7px;display:grid;position:absolute;top:calc(100% - 8px);left:22px;right:22px;overflow-y:auto}.player-search__results>p{color:var(--color-text-muted);margin:0;padding:18px}.player-result{border-radius:var(--radius-sm);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:11px;display:grid}.player-result:hover{background:var(--color-canvas)}.player-result>div:nth-child(2){min-width:0;display:grid}.player-result strong{text-overflow:ellipsis;overflow:hidden}.player-result span{color:var(--color-text-subtle);font-size:12px}.player-result__actions{align-items:center;gap:7px;display:flex}.relationship-label{align-items:center;gap:5px;padding:8px;font-weight:620;display:flex;color:var(--color-moss-strong)!important}.friends-grid{grid-template-columns:minmax(0,1.25fr) minmax(330px,.75fr);align-items:start;gap:24px;display:grid}.friends-side-stack{gap:24px;display:grid}.friends-card{overflow:hidden}.friends-card>header{border-bottom:1px solid var(--color-line);justify-content:space-between;align-items:center;padding:21px 23px;display:flex}.friends-card>header h2{letter-spacing:-.025em;margin:0;font-size:21px;font-weight:560}.friends-card>header svg{color:var(--color-moss-strong)}.friends-empty{color:var(--color-text-muted);margin:0;padding:28px 23px;line-height:1.6}.friend-row{border-bottom:1px solid var(--color-line);grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:11px;min-height:78px;padding:11px 15px;display:grid}.friend-row:last-child{border-bottom:0}.friend-row__identity{color:inherit;cursor:pointer;text-align:left;background:0 0;border:0;grid-template-columns:8px auto minmax(0,1fr);align-items:center;gap:11px;min-width:0;padding:0;display:grid}.friend-row__identity>span:last-child{min-width:0;display:grid}.friend-row__identity small{color:var(--color-text-subtle);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.presence-dot{border-radius:50%;width:8px;height:8px}.presence-dot--online{background:var(--color-moss);box-shadow:0 0 0 4px var(--color-moss-soft)}.presence-dot--playing{background:var(--color-warning);box-shadow:0 0 0 4px var(--color-warning-soft)}.presence-dot--offline{background:var(--color-line-strong)}.unread-badge{background:var(--color-moss-soft);border-radius:var(--radius-pill);color:var(--color-moss-strong);padding:5px 8px;font-size:10px;font-weight:700}.friend-row__actions{gap:5px;display:flex}.friend-row__actions button,.friends-modal header>button{color:var(--color-text-muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.friend-row__actions button:hover,.friends-modal header>button:hover{background:var(--color-canvas-deep);color:var(--color-ink)}.friend-request,.game-invite{border-bottom:1px solid var(--color-line);gap:10px;padding:16px 18px;display:grid}.friend-request:last-child,.game-invite:last-child{border-bottom:0}.friend-request{grid-template-columns:auto minmax(0,1fr);align-items:center}.friend-request>div:nth-child(2),.game-invite>div:first-child{display:grid}.friend-request>div:last-child,.game-invite>div:last-child{flex-wrap:wrap;grid-column:1/-1;gap:7px;display:flex}.friend-request span,.game-invite span,.game-invite small{color:var(--color-text-subtle);font-size:12px}.game-invite small{align-items:center;gap:5px;margin-top:5px;display:flex}.friends-modal{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-float);width:calc(100% - 32px);max-width:620px;max-height:min(760px,100vh - 40px);padding:0;overflow:auto}.friends-modal>header,.friends-modal form>header{border-bottom:1px solid var(--color-line);justify-content:space-between;align-items:center;padding:20px 22px;display:flex}.friends-modal h2{letter-spacing:-.035em;margin:5px 0 0;font-size:25px;font-weight:540}.chat-modal{grid-template-rows:auto minmax(250px,1fr) auto;height:min(680px,100vh - 40px);display:grid}.friend-chat-log{flex-direction:column;gap:10px;padding:20px;display:flex;overflow-y:auto}.friend-chat-log>p{color:var(--color-text-muted);margin:auto}.friend-chat-log article{background:var(--color-canvas-deep);border-radius:4px 13px 13px;align-self:flex-start;max-width:82%;padding:10px 12px 7px}.friend-chat-log article.is-mine{background:var(--color-moss-soft);border-radius:13px 4px 13px 13px;align-self:flex-end}.friend-chat-log strong{margin-bottom:3px;font-size:10px;display:block}.friend-chat-log p{overflow-wrap:anywhere;margin:0}.friend-chat-log time{color:var(--color-text-subtle);text-align:right;margin-top:4px;font-size:9px;display:block}.friend-chat-form{border-top:1px solid var(--color-line);grid-template-columns:1fr auto;gap:9px;padding:15px;display:grid}.friend-chat-form input{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:var(--radius-sm);font:inherit;min-width:0;padding:11px 13px}.profile-preview-modal{padding-bottom:20px}.profile-preview__identity{align-items:center;gap:18px;padding:26px 24px 20px;display:flex}.profile-preview__identity h2{font-family:var(--font-serif);margin:0 0 4px;font-size:34px}.profile-preview__identity p,.profile-preview-modal>p{color:var(--color-text-muted);margin:0}.profile-preview-modal>p{padding:0 24px 20px}.profile-preview__stats{grid-template-columns:repeat(4,1fr);margin:0;padding:0 24px 22px;display:grid}.profile-preview__stats div{border-left:1px solid var(--color-line);gap:5px;padding:4px 12px;display:grid}.profile-preview__stats dt{color:var(--color-text-subtle);font-size:10px}.profile-preview__stats dd{margin:0;font-size:19px;font-weight:620}.profile-preview-modal footer,.invite-modal footer{flex-wrap:wrap;gap:8px;padding:0 24px;display:flex}.invite-modal form>fieldset{border:0;margin:0;padding:22px 24px 10px}.invite-modal legend,.invite-time>span{margin-bottom:9px;font-size:13px;font-weight:650}.invite-choice-grid{grid-template-columns:repeat(3,1fr);gap:9px;display:grid}.invite-choice-grid label{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:var(--radius-sm);cursor:pointer;text-align:center;padding:14px 10px;font-size:12px}.invite-choice-grid label.is-selected{border-color:var(--color-moss);box-shadow:inset 0 0 0 1px var(--color-moss);color:var(--color-moss-strong);font-weight:650}.invite-choice-grid input{opacity:0;width:1px;height:1px;position:absolute}.invite-time{padding:10px 24px;display:grid}.invite-time select{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:var(--radius-sm);font:inherit;min-height:48px;padding:8px 12px}.unrated-callout{background:var(--color-moss-soft);border-radius:var(--radius-sm);color:var(--color-moss-strong);align-items:center;gap:9px;margin:10px 24px 20px;padding:12px 14px;display:flex}.invite-modal footer{justify-content:flex-end;padding-bottom:22px}@media (max-width:900px){.friends-grid{grid-template-columns:1fr}.friends-hero{align-items:flex-start}}@media (max-width:620px){.friends-page{gap:16px}.friends-hero{min-height:0;padding:28px 22px}.friends-summary{display:none}.friends-hero h1{font-size:44px}.player-search{padding:17px}.player-search__results{left:10px;right:10px}.player-result{grid-template-columns:auto 1fr;align-items:start}.player-result__actions{grid-column:1/-1}.friend-row{grid-template-columns:minmax(0,1fr) auto}.unread-badge{grid-column:1;justify-self:start;margin-left:54px}.friend-row__actions{grid-area:1/2/span 2}.profile-preview__stats{grid-template-columns:repeat(2,1fr);row-gap:16px}.invite-choice-grid{grid-template-columns:1fr}.friends-modal{border-radius:var(--radius-md);width:calc(100% - 16px)}}html{background:var(--color-canvas);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;scroll-behavior:auto;scroll-padding-top:92px}body{background:var(--color-canvas);color:var(--color-ink);font-family:Avenir Next,Avenir,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5}::selection{background:var(--color-moss-soft);color:var(--color-ink)}.app-main{margin-left:0;padding-top:82px}.app-content{max-width:1380px;padding:var(--page-top-space) clamp(24px, 5vw, 72px) 88px}.app-content:has(.home-experience){max-width:none;padding:0}.app-content:has(.play-experience){max-width:none;padding:0 clamp(24px,4vw,64px)}.skip-link{background:var(--color-ink);border-radius:0 0 var(--radius-sm) 0;color:var(--color-surface-raised)}.sidebar{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:50;background:#f5f2ebf0;border-bottom:1px solid #28272212;grid-template-columns:minmax(190px,1fr) auto minmax(280px,1fr);align-items:center;width:auto;height:82px;padding:0 clamp(28px,4vw,64px);display:grid;position:fixed;inset:0 0 auto}.brand,.game-brand{color:var(--color-ink);letter-spacing:-.035em;font-size:20px;font-weight:620}.sidebar>.brand{justify-self:start;padding:0}.brand-mark{width:29px;height:29px}.brand-mark span:first-child{background:radial-gradient(circle at 30% 24%,#4d504c,#111311 46%,#030403 78%);border-color:#111;box-shadow:0 4px 9px #10110f38}.brand-mark span:last-child{background:radial-gradient(circle at 30% 24%,#fff,#f0eee8 55%,#c9c5bb);border-color:#d6d1c7;box-shadow:0 4px 9px #10110f1f}.sidebar-nav{margin:0}.nav-group{align-items:center;gap:clamp(22px,3vw,54px);display:flex}.nav-link{color:var(--color-ink-soft);border-radius:0;min-height:44px;padding:12px 0;font-size:15px;font-weight:520;display:block;position:relative}.nav-link:after{background:var(--color-moss);border-radius:var(--radius-pill);content:"";opacity:0;transform-origin:50%;height:2px;transition:opacity var(--duration-base), transform var(--duration-base) var(--ease-out);width:100%;position:absolute;bottom:1px;left:0;transform:scaleX(0)}.nav-link:hover,.nav-link.is-active{color:var(--color-ink);background:0 0}.nav-link.is-active{box-shadow:none}.nav-link:hover:after,.nav-link.is-active:after{opacity:1;transform:scaleX(1)}.sidebar-bottom{justify-self:end;align-items:center;gap:10px;display:flex}.language-menu{position:relative}.language-menu-trigger{border-radius:var(--radius-pill);color:var(--color-text-muted);cursor:pointer;min-height:42px;transition:background var(--duration-fast), border-color var(--duration-fast), color var(--duration-fast), transform var(--duration-fast) var(--ease-out);background:0 0;border:1px solid #0000;align-items:center;gap:7px;padding:8px 11px;font-size:13px;font-weight:580;display:inline-flex}.language-menu-trigger:hover,.language-menu-trigger[aria-expanded=true]{background:var(--color-moss-soft);color:var(--color-moss-strong);border-color:#315f4e24}.language-menu-trigger:active{transform:translateY(1px)}.language-menu-trigger:disabled{cursor:wait;opacity:.65}.language-menu-chevron{transition:transform var(--duration-base) var(--ease-out)}.language-menu-trigger[aria-expanded=true] .language-menu-chevron{transform:rotate(180deg)}.language-menu-popover{animation:language-menu-enter var(--duration-base) var(--ease-out);background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-md);box-shadow:var(--shadow-float);z-index:90;min-width:218px;padding:7px;position:absolute;top:calc(100% + 9px);right:0;overflow:hidden}@keyframes language-menu-enter{0%{opacity:0;transform:translateY(-5px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}.language-menu-heading{color:var(--color-text-subtle);letter-spacing:.09em;text-transform:uppercase;margin:0;padding:8px 10px 6px;font-size:10px;font-weight:680}.language-menu-options{gap:2px;display:grid}.language-menu-option{color:var(--color-ink-soft);cursor:pointer;text-align:left;min-height:40px;transition:background var(--duration-fast), color var(--duration-fast);background:0 0;border:0;border-radius:7px;justify-content:space-between;align-items:center;width:100%;padding:8px 10px;font-size:14px;font-weight:520;display:flex}.language-menu-option:hover,.language-menu-option:focus-visible{background:var(--color-canvas-deep);color:var(--color-ink)}.language-menu-option[aria-checked=true]{background:var(--color-moss-soft);color:var(--color-moss-strong);font-weight:640}.language-menu .language-switch-error{background:var(--color-oxide-soft);border-radius:var(--radius-xs);color:var(--color-danger);max-width:240px;margin-top:6px;padding:7px 9px;font-size:11px;display:block}.sidebar-signup,.sidebar-login,.sidebar-user{border-radius:var(--radius-xs);width:auto;min-height:44px;padding:10px 16px;font-size:14px;font-weight:560}.sidebar-signup{background:var(--color-ink);border:1px solid var(--color-ink);color:var(--color-surface-raised)}.sidebar-login{color:var(--color-ink);background:0 0;border:1px solid #0000}.sidebar-login:hover{border-color:var(--color-line)}.sidebar-login--icon{width:44px;padding:0}.sidebar-user{background:var(--color-surface-raised);border:1px solid var(--color-line);gap:9px}.sidebar-user>span:not(.profile-symbol):not(.sidebar-user__identity):not(.sidebar-user__name){background:var(--color-moss);color:#fff;border-radius:50%;width:28px;height:28px}.sidebar-user strong{max-width:120px}.sidebar-account-loading{color:var(--color-text-muted);font-size:12px}.app-footer{border-color:var(--color-line);color:var(--color-text-muted);margin-inline:clamp(24px,5vw,72px);padding-block:24px 30px;font-size:12px}.button{border-radius:var(--radius-sm);min-height:44px;transition:background var(--duration-fast), border-color var(--duration-fast), color var(--duration-fast), transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast);border:1px solid #0000;font-weight:620}.button:hover{transform:translateY(-1px)}.button--primary{background:var(--color-ink);border-bottom:1px solid var(--color-ink);color:var(--color-surface-raised)}.button--primary:hover{background:#2a2b28}.button--secondary{background:var(--color-surface-raised);border:1px solid var(--color-line);color:var(--color-ink)}.button--secondary:hover{background:var(--color-canvas-deep)}.button--ghost{color:var(--color-text-muted)}.button--danger{background:var(--color-danger);color:#fff;border-bottom:1px solid #6d2e29}.button--lg{min-height:52px;padding:13px 22px;font-size:16px}.section-kicker{color:var(--color-moss-strong);letter-spacing:.13em;font-size:12px;font-weight:680}.live-dot,.status-dot--online{background:var(--color-moss);box-shadow:0 0 0 4px #4775631a}:is(a,button,input,select,textarea,summary,[tabindex]):not(.intersection):not([tabindex="-1"]):focus-visible{outline:2px solid var(--color-ink);outline-offset:3px;box-shadow:0 0 0 5px var(--color-moss-soft)}.home-experience{font-family:var(--font-sans);overflow:clip}.home-hero{background:var(--color-canvas);height:calc(100svh - 82px);min-height:0;display:block;position:relative;overflow:hidden}.home-hero:after{content:"";pointer-events:none;z-index:0;background:linear-gradient(#0000,#eee9dfb8);height:clamp(44px,7vh,76px);position:absolute;bottom:0;left:0;right:0}.home-hero-copy{animation:hero-copy-in .7s .12s var(--ease-out) both;text-align:center;left:50%;top:var(--page-top-space);z-index:4;position:absolute;transform:translate(-50%)}.home-hero h1{letter-spacing:.24em;margin:0 auto 18px;font-family:Songti SC,Hiragino Mincho ProN,Yu Mincho,serif;font-size:clamp(23px,2vw,29px);font-weight:500;line-height:1.35}.home-hero h1 span{white-space:nowrap;writing-mode:vertical-rl;display:inline-block}.hero-worlds-line{color:var(--color-text-subtle);letter-spacing:.18em;white-space:nowrap;margin:0;font-size:12px;font-weight:560;line-height:1.7}.hero-stone-stage{animation:stone-settle var(--duration-hero) .18s var(--ease-out) both;pointer-events:none;left:50%;top:var(--page-top-space);z-index:1;width:min(1080px,94vw,132svh - 108.24px);position:absolute;transform:translate(-50%);-webkit-mask-image:radial-gradient(62% 58% at 50% 56%,#000 42%,#0000 82%);mask-image:radial-gradient(62% 58% at 50% 56%,#000 42%,#0000 82%)}.hero-stone-image{mix-blend-mode:multiply;width:100%;height:auto;display:block}.hero-ripple{opacity:0;z-index:2;border:1px solid #5f635b21;border-radius:50%;position:absolute;top:58%;left:50%;transform:translate(-50%,-50%)}.hero-ripple--one{animation:ripple-once 1.45s .72s var(--ease-out) both;width:330px;height:88px}.hero-ripple--two{animation:ripple-once 1.55s .86s var(--ease-out) both;width:470px;height:126px}.hero-actions{animation:hero-actions-in .62s .56s var(--ease-out) both;z-index:5;flex-direction:column;align-items:center;width:min(366px,100vw - 40px);margin:0;display:flex;position:absolute;bottom:clamp(30px,4vh,44px);left:50%;transform:translate(-50%)}.hero-start{border-radius:var(--radius-xs);justify-content:space-between;width:100%;min-height:62px;padding-inline:30px;font-size:18px;box-shadow:0 12px 30px #17181626}.hero-start svg{transition:transform var(--duration-base) var(--ease-out)}.hero-start:hover svg,.hero-start:focus-visible svg{transform:translate(5px)}.hero-start:hover~.hero-live-status .live-dot,.hero-start:focus-visible~.hero-live-status .live-dot{animation:live-pulse .7s var(--ease-out)}.hero-live-status{color:var(--color-text-muted);text-align:center;align-items:center;gap:10px;margin:18px 0 0;font-size:13px;display:flex}.hero-live-status .live-dot{flex:none}.hero-edge{color:var(--color-text-subtle);letter-spacing:.42em;writing-mode:vertical-rl;z-index:4;font-size:10px;position:absolute;top:50%}.hero-edge--left{left:clamp(24px,3.4vw,54px);transform:translateY(-50%)rotate(180deg)}.hero-edge--right{right:clamp(24px,3.4vw,54px);transform:translateY(-50%)}.home-chapters{background:var(--color-canvas-deep);isolation:isolate;padding:clamp(88px,11vw,164px) clamp(24px,7vw,112px);position:relative}.home-chapters:before{background-image:linear-gradient(#57432933 1px, transparent 1px), linear-gradient(90deg, #57432933 1px, transparent 1px), radial-gradient(ellipse at 50% 8%, transparent 28%, #4775631f 29%, transparent 30%), linear-gradient(to bottom, var(--color-canvas), var(--color-canvas-deep));content:"";opacity:.62;pointer-events:none;z-index:-1;background-position:50%,50%,50%,50%;background-size:56px 56px,56px 56px,100% 100%,100% 100%;height:clamp(150px,18vw,260px);position:absolute;top:0;left:0;right:0;transform:translateY(-48%);-webkit-mask-image:linear-gradient(#0000,#000 28% 74%,#0000);mask-image:linear-gradient(#0000,#000 28% 74%,#0000)}.home-chapter{grid-template-columns:minmax(0,1.06fr) minmax(330px,.94fr);align-items:center;gap:clamp(54px,9vw,140px);max-width:1220px;min-height:min(760px,78svh);margin:0 auto;padding-block:clamp(72px,9vw,124px);display:grid}.home-chapter--learn,.home-chapter--puzzles{grid-template-columns:minmax(330px,.94fr) minmax(0,1.06fr)}.chapter-copy h2,.platform-status-heading h2{color:var(--color-ink);letter-spacing:-.05em;margin:18px 0 22px;font-size:clamp(40px,5.2vw,70px);font-weight:540;line-height:1.02}.chapter-copy p,.platform-status-heading p{color:var(--color-text-muted);margin:0;font-size:clamp(16px,1.5vw,19px);line-height:1.7}.chapter-link{border-bottom:1px solid var(--color-line-strong);align-items:center;gap:9px;min-height:44px;margin-top:30px;font-weight:620;display:inline-flex}.chapter-link svg{transition:transform var(--duration-base) var(--ease-out)}.chapter-link:hover svg,.chapter-link:focus-visible svg{transform:translate(4px)}.chapter-visual{aspect-ratio:1;border-radius:var(--radius-sm);box-shadow:var(--shadow-float);background-color:#d4af74;background-image:linear-gradient(#57432994 1px,#0000 1px),linear-gradient(90deg,#57432994 1px,#0000 1px),linear-gradient(145deg,#fff3,#0000 42%);background-position:10% 10%,10% 10%,0 0;background-size:10% 10%,10% 10%,100% 100%;border:1px solid #5743293d;max-width:570px;position:relative;overflow:hidden}.chapter-stone,.lesson-stone,.review-stone{border-radius:50%;position:absolute;transform:translate(-50%,-50%)}.chapter-stone--black,.lesson-stone{background:radial-gradient(circle at 31% 24%,#555a54,#151714 47%,#050605 80%);box-shadow:0 8px 13px #30231342}.chapter-stone--white{background:radial-gradient(circle at 31% 24%,#fff,#f1eee7 56%,#bbb5aa);box-shadow:0 8px 13px #3023132e}.chapter-stone{width:11%;height:11%}.chapter-stone--black{top:40%;left:40%}.chapter-stone--white{top:50%;left:50%}.chapter-ripple{border:2px solid #f5f2eb7a;border-radius:50%;width:64%;height:48%;position:absolute;top:45%;left:45%;transform:translate(-50%,-50%)rotate(-9deg)}.chapter-visual--lesson{background-size:12.5% 12.5%,12.5% 12.5%,100% 100%}.lesson-stone{width:12%;height:12%}.lesson-stone--one{top:47.5%;left:35%}.lesson-stone--two{top:35%;left:47.5%}.lesson-stone--three{top:60%;left:47.5%}.lesson-liberty{background:var(--color-moss-strong);box-shadow:0 0 0 2px var(--color-moss-strong);border:3px solid #f5f2ebe6;border-radius:50%;width:4%;height:4%;position:absolute;transform:translate(-50%,-50%)}.lesson-liberty--one{top:47.5%;left:60%}.lesson-liberty--two{top:72.5%;left:47.5%}.chapter-visual--puzzles{background-size:12.5% 12.5%,12.5% 12.5%,100% 100%}.chapter-visual--puzzles:after{content:"";background:#47756321;border:1px solid #4775634d;position:absolute;inset:25% 12.5% 12.5% 37.5%}.puzzle-stone{z-index:2;border-radius:50%;width:12%;height:12%;position:absolute;transform:translate(-50%,-50%)}.puzzle-stone--black{background:radial-gradient(circle at 31% 24%,#555a54,#151714 47%,#050605 80%);box-shadow:0 8px 13px #30231342}.puzzle-stone--white{background:radial-gradient(circle at 31% 24%,#fff,#f1eee7 56%,#bbb5aa);box-shadow:0 8px 13px #3023132e}.puzzle-stone--one{top:37.5%;left:37.5%}.puzzle-stone--two{top:37.5%;left:50%}.puzzle-stone--three{top:50%;left:62.5%}.puzzle-stone--four{top:50%;left:37.5%}.puzzle-stone--five{top:62.5%;left:50%}.puzzle-vital-point{background:var(--color-oxide);box-shadow:0 0 0 2px var(--color-oxide);z-index:3;border:4px solid #fffdf9e6;border-radius:50%;width:5%;height:5%;position:absolute;top:62.5%;left:62.5%;transform:translate(-50%,-50%)}.puzzle-sequence-line{z-index:3;border-top:2px dashed #a64b2db8;border-left:2px dashed #a64b2db8;width:12.5%;height:12.5%;position:absolute;top:50%;left:62.5%}.puzzle-sequence-label{background:var(--color-oxide);color:#fff;z-index:4;border-radius:50%;justify-content:center;align-items:center;width:7%;height:7%;font-size:clamp(10px,1.2vw,15px);font-weight:700;display:flex;position:absolute;top:50%;left:75%;transform:translate(-50%,-50%)}.review-stone{width:10%;height:10%}.review-stone--black{background:radial-gradient(circle at 31% 24%,#555a54,#151714 47%,#050605 80%);box-shadow:0 7px 12px #3023133d}.review-stone--white{background:radial-gradient(circle at 31% 24%,#fff,#f1eee7 56%,#bbb5aa);box-shadow:0 7px 12px #3023132e}.review-stone--one{top:40%;left:40%}.review-stone--two{top:30%;left:50%}.review-stone--three{top:40%;left:60%}.review-stone--four{top:50%;left:50%}.review-stone--five{top:50%;left:40%}.review-stone--six{top:50%;left:60%}.review-stone--seven{top:60%;left:50%}.review-stone--seven span{color:var(--color-ink);font-variant-numeric:tabular-nums;justify-content:center;align-items:center;font-size:clamp(10px,1.15vw,15px);font-weight:750;display:flex;position:absolute;inset:0}.platform-status{background:var(--color-surface-raised);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);border:0;max-width:1220px;margin:clamp(60px,9vw,120px) auto 0;padding:clamp(34px,5vw,68px)}.platform-status-heading{align-items:end}.platform-status-heading>div{max-width:760px}.platform-status-heading h2{font-size:clamp(36px,4.5vw,58px)}.platform-status-heading>a{color:var(--color-ink);min-height:44px;font-size:14px}.platform-metrics{border-bottom:1px solid var(--color-line);border-top:1px solid var(--color-line);gap:0;margin:42px 0 22px}.platform-metrics article{border-right:1px solid var(--color-line);background:0 0;gap:12px;min-height:140px;padding:26px}.platform-metrics article:last-child{border-right:0}.platform-metrics span{color:var(--color-text-muted);font-size:13px}.platform-metrics strong{color:var(--color-ink);font-size:clamp(28px,4vw,46px);font-weight:520}.platform-activity-note{color:var(--color-text-muted);max-width:800px;font-size:12px}.content-page,.legal-page{max-width:1180px}.content-hero{max-width:900px;padding:0 0 clamp(54px,8vw,100px)}.content-hero h1,.match-lobby-copy h1,.page-header h1,.profile-header h1,.legal-page h1,.not-found-page h1,.auth-card h1{color:var(--color-ink);letter-spacing:-.055em;font-weight:540}.content-hero h1{font-size:clamp(46px,6.2vw,76px);line-height:.98}.content-hero>p,.content-section>header p,.content-panel>p,.match-lobby-copy>p,.page-header p,.profile-header p,.legal-card p,.legal-note,.auth-card>p{color:var(--color-text-muted)}.content-section{border-top:1px solid var(--color-line);margin-bottom:clamp(64px,8vw,110px);padding-top:clamp(36px,5vw,64px)}.content-card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:0}.content-card{border:0;border-right:1px solid var(--color-line);background:0 0;border-radius:0;padding:clamp(24px,3.5vw,42px)}.content-card:last-child{border-right:0}.content-card__icon,.panel-icon,.auth-icon,.confirm-modal-icon{background:var(--color-moss-soft);color:var(--color-moss-strong)}.content-card p{color:var(--color-text-muted);font-size:15px}.content-panel{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-md);box-shadow:var(--shadow-hairline)}.content-panel--trust{background:var(--color-ink);border-color:var(--color-ink);color:#fff}.content-panel--trust h2,.content-panel--trust p{color:#fff}.content-steps li:before,.content-glossary details,.review-questions li{background:var(--color-canvas-deep)}.review-questions li{border-left-color:var(--color-moss);color:var(--color-ink)}.match-lobby{min-height:calc(100svh - 170px)}.play-experience{grid-template-columns:minmax(390px,1.04fr) minmax(410px,.96fr);align-items:center;gap:clamp(44px,6vw,96px);max-width:1420px;min-height:calc(100svh - 82px);margin:0 auto;padding:clamp(38px,5vh,68px) 0;display:grid}.play-board-column,.play-pace-column{min-width:0}.play-board-column{justify-items:center;gap:clamp(18px,2.4vh,26px);display:grid}.play-board-preview{aspect-ratio:1;background-color:var(--color-board);isolation:isolate;background-image:linear-gradient(92deg,#ffffff14,#0000 26%,#6c451e0b 72%,#0000),repeating-linear-gradient(0deg,#0000 0 8px,#5c391805 9px,#0000 10px);border:1px solid #68482461;border-radius:3px;width:min(100%,100svh - 250px,620px);max-width:620px;position:relative;overflow:hidden;box-shadow:0 2px 2px #30231314,0 18px 42px #30231321}.play-board-preview:after{content:"";pointer-events:none;border:1px solid #ffffff2e;position:absolute;inset:5px}.play-board-preview-grid{animation:play-board-settle .28s var(--ease-out) both;width:100%;height:100%;display:block}.play-board-grid-lines{stroke:var(--color-board-line)}.play-board-star-points{fill:var(--color-board-line)}.play-board-center-stone{transform-box:fill-box;transform-origin:50%}@keyframes play-board-settle{0%{opacity:.6;transform:scale(.994)}to{opacity:1;transform:scale(1)}}.play-board-column .size-selector{background:0 0;border-radius:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;width:min(100%,100svh - 250px,620px);max-width:620px;padding:0;display:grid}.play-board-column .size-selector button{border:0;border-left:1px solid var(--color-line);color:var(--color-text-muted);min-height:58px;transition:color var(--duration-base), background var(--duration-base);background:0 0;border-radius:0;justify-content:center;align-items:center;gap:11px;padding:8px 14px 13px;display:flex;position:relative}.play-board-column .size-selector button:first-child{border-left:0}.play-board-column .size-selector button:after{background:var(--color-moss);content:"";opacity:0;height:2px;transition:opacity var(--duration-base), transform var(--duration-base) var(--ease-out);position:absolute;bottom:0;left:16%;right:16%;transform:scaleX(.35)}.play-board-column .size-selector button:hover:not(:disabled){color:var(--color-ink);background:#4775630b}.play-board-column .size-selector button.is-selected{color:var(--color-moss-strong);background:0 0}.play-board-column .size-selector button.is-selected:after{opacity:1;transform:scaleX(1)}.play-board-column .size-selector button:disabled{opacity:.58}.play-board-column .size-selector strong{color:inherit;font-size:15px;font-weight:620}.board-size-glyph{flex:none;width:30px;height:30px;display:block}.board-size-glyph .play-board-grid-lines{stroke:currentColor}.board-size-glyph .play-board-star-points{fill:currentColor}.play-pace-column{border-left:1px solid var(--color-line);flex-direction:column;justify-content:center;max-width:680px;padding-left:clamp(38px,5vw,78px);display:flex}.play-pace-heading{margin-bottom:clamp(24px,3.5vh,38px)}.play-pace-heading>span{color:var(--color-moss-strong);letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px;font-size:11px;font-weight:680;display:block}.play-pace-heading h1{color:var(--color-ink);letter-spacing:-.045em;margin:0;font-family:Iowan Old Style,Baskerville,Times New Roman,serif;font-size:clamp(46px,5vw,68px);font-weight:400;line-height:.98}.play-pace-column .time-selector{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-sm);grid-template-columns:1fr;gap:0;display:grid;overflow:hidden}.play-pace-column .time-selector button{border:0;border-bottom:1px solid var(--color-line);color:var(--color-ink);text-align:left;min-height:104px;transition:background var(--duration-base), color var(--duration-base);background:0 0;border-radius:0;grid-template-columns:58px minmax(0,1fr) 12px;align-items:center;gap:18px;padding:18px 24px;display:grid}.play-pace-column .time-selector button:last-child{border-bottom:0}.play-pace-column .time-selector button:hover:not(:disabled):not(.is-selected){background:var(--color-canvas-deep);border-color:var(--color-line)}.play-pace-column .time-selector button.is-selected{background:var(--color-moss-soft);box-shadow:inset 3px 0 var(--color-moss);color:var(--color-moss-strong)}.play-pace-column .time-selector button:disabled{cursor:not-allowed;opacity:.62}.time-selector-icon{color:currentColor;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.time-selector-copy{justify-content:space-between;align-items:baseline;gap:18px;min-width:0;display:flex}.play-pace-column .time-selector strong{color:currentColor;letter-spacing:-.02em;font-family:Iowan Old Style,Baskerville,Times New Roman,serif;font-size:24px;font-weight:500}.play-pace-column .time-selector-copy>span{color:var(--color-text-muted);text-align:right;font-size:13px;line-height:1.4}.time-selector-mark{border:1px solid var(--color-line-strong);border-radius:50%;justify-self:end;width:8px;height:8px}.time-selector button.is-selected .time-selector-mark{background:var(--color-moss);border-color:var(--color-moss);box-shadow:0 0 0 4px #4775631a}.play-matchmaking{margin-top:24px}.play-match-status{background:var(--color-canvas-deep);border:1px solid var(--color-line);border-radius:var(--radius-sm);color:var(--color-text-muted);align-items:center;gap:10px;min-height:46px;margin:0 0 12px;padding:10px 13px;font-size:13px;line-height:1.45;display:flex}.play-match-status strong{color:var(--color-ink);flex:none}.play-match-status[data-state=session_expired],.play-match-status[data-state=identity_changed],.play-match-status[data-state=unavailable]{background:var(--color-danger-soft);color:var(--color-danger);border-color:#7b302c33}.play-match-action{border-radius:var(--radius-xs);justify-content:space-between;width:100%;min-height:62px;padding-inline:26px;font-family:Iowan Old Style,Baskerville,Times New Roman,serif;font-size:20px;font-weight:500}.play-match-action svg{transition:transform var(--duration-base) var(--ease-out);flex:none}.play-match-action:hover:not(:disabled) svg:not(.spin){transform:translate(4px)}.play-matchmaking .match-error{margin-top:12px}.play-experience--active{justify-content:center;display:flex}.play-active-card{width:100%;max-width:560px}.match-lobby-copy h1{font-size:clamp(48px,5.7vw,76px)}.match-lobby-card,.auth-card,.profile-guest,.legal-card,.leaderboard-card,.profile-statistics,.profile-history,.rating-card,.matchmaking-panel,.active-game-panel,.game-panel,.chat-panel,.card{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-md);box-shadow:var(--shadow-hairline)}.match-lobby-card,.auth-card,.profile-guest{box-shadow:var(--shadow-soft)}.size-selector,.leaderboard-filter{background:var(--color-canvas-deep)}.size-selector button,.leaderboard-filter button,.time-selector button{color:var(--color-text-muted);min-height:48px}.time-selector button{background:var(--color-canvas-deep);border-color:#0000}.time-selector button:hover:not(:disabled):not(.is-selected){border-color:var(--color-line-strong);background:#e4ded3}.size-selector button.is-selected,.leaderboard-filter button.is-selected,.time-selector button.is-selected{background:var(--color-moss);color:#fff}.match-connection-status,.active-game-summary,.match-settings div,.game-state,.scoring-preview span,.final-score-summary,.scoring-dispute-picker select,.profile-period,.profile-history__heading>span,.profile-metrics article,.rating-chart-empty,.input-wrap{background:var(--color-canvas-deep);border-color:var(--color-line);color:var(--color-ink)}.match-settings span,.active-game-summary span,.panel-heading p,.panel-note,.match-connection-status,.lobby-trust span{color:var(--color-text-muted);font-size:max(12px,.75rem)}.panel-heading h2{font-size:17px}.match-settings strong,.time-selector strong{font-size:13px}.time-selector button>span:not(.time-selector-heading),.time-selector small,.badge,.match-settings span{font-size:11px}.badge--green{background:var(--color-moss-soft);color:var(--color-moss-strong)}.badge--neutral{background:var(--color-canvas-deep);color:var(--color-text-muted)}.badge--amber{background:var(--color-warning-soft);color:var(--color-warning)}.queue-indicator,.game-state.is-your-turn{background:var(--color-moss-soft);color:var(--color-moss-strong)}.match-error,.play-error,.form-error,.profile-error,.chat-error,.confirm-modal>.confirm-modal-error{background:var(--color-danger-soft);color:var(--color-danger);border-color:#963f3840}.auth-page{min-height:calc(100svh - 170px)}.auth-card{max-width:470px}.input-wrap:focus-within{border-color:var(--color-moss);box-shadow:0 0 0 3px var(--color-moss-soft)}.auth-social-button{background:var(--color-canvas-deep);border-color:var(--color-line);color:var(--color-ink)}.auth-social-button:hover{border-color:var(--color-line-strong);background:#e4ded3}.auth-divider{color:var(--color-text-muted)}.auth-divider:before,.auth-divider:after{background:var(--color-line)}.input-wrap input,.chat-form input,.scoring-dispute-picker select{color:var(--color-ink);font-size:16px}.auth-switch a,.legal-contact-line a,.hero-review-link{color:var(--color-moss-strong)}.legal-page>header{max-width:780px;padding:0 0 clamp(36px,5vw,58px)}.legal-page>header p{max-width:700px;font-size:15px;line-height:1.65}.legal-page h1{font-size:clamp(48px,6.5vw,72px);line-height:1}.legal-sections{border-bottom:1px solid var(--color-line);margin-bottom:clamp(70px,10vw,120px)}.legal-section{border-top:1px solid var(--color-line);grid-template-columns:minmax(145px,.3fr) minmax(0,1fr);gap:clamp(24px,5vw,64px);padding:clamp(28px,4vw,42px) 0;display:grid}.legal-section h2{color:var(--color-text-subtle);letter-spacing:.12em;text-transform:uppercase;margin:0;font-size:11px;font-weight:700}.legal-section__content{color:var(--color-ink-soft);min-width:0}.legal-provider-name{color:var(--color-ink);letter-spacing:-.035em;font-size:clamp(24px,3vw,32px);font-weight:540;line-height:1.15;display:block}.legal-section .legal-entity-details{color:var(--color-text-muted);margin-top:8px;font-size:14px}.legal-facts{gap:18px;margin:26px 0 0;display:grid}.legal-facts>div{gap:4px;display:grid}.legal-facts dt{color:var(--color-text-subtle);letter-spacing:.08em;text-transform:uppercase;font-size:11px;font-weight:700}.legal-facts dd{margin:0;font-size:15px}.legal-facts dd span{line-height:1.65;display:block}.legal-facts address{font-style:normal;line-height:1.65}.legal-email{color:var(--color-ink);overflow-wrap:anywhere;-webkit-text-decoration-color:var(--color-line-strong);text-decoration-color:var(--color-line-strong);text-underline-offset:5px;transition:color var(--duration-base) var(--ease-standard), text-decoration-color var(--duration-base) var(--ease-standard);font-size:clamp(17px,2.2vw,20px);text-decoration-thickness:1px;display:inline-block}.legal-email:hover{color:var(--color-moss-strong);-webkit-text-decoration-color:var(--color-moss);text-decoration-color:var(--color-moss)}.legal-section__content>p{max-width:640px;margin:0;font-size:15px;line-height:1.7}.legal-section__content>p+p,.legal-section__content>strong+p{margin-top:12px}.legal-section .legal-response-note{color:var(--color-text-muted);margin-top:14px;font-size:12px}.legal-section__content--dsa .legal-email{margin-top:18px;font-size:15px}.privacy-updated{color:var(--color-text-subtle);margin-top:14px;font-size:12px!important}.privacy-controller-name{margin-top:20px}.privacy-email{margin-top:4px;font-size:15px}.privacy-copy>p+p,.privacy-copy>.privacy-table-wrap+p,.privacy-copy>.privacy-processors+p{margin-top:20px}.privacy-copy ul{gap:12px;margin:18px 0 0;padding-inline-start:20px;display:grid}.privacy-copy li{padding-inline-start:4px;font-size:15px;line-height:1.7}.privacy-table-wrap{max-width:100%;margin-top:22px;overflow-x:auto}.privacy-table{border-collapse:collapse;width:100%;min-width:620px;font-size:13px}.privacy-table th,.privacy-table td{border-bottom:1px solid var(--color-line);text-align:start;vertical-align:top;padding:12px 14px;line-height:1.55}.privacy-table thead th{color:var(--color-text-subtle);letter-spacing:.08em;text-transform:uppercase;font-size:10px}.privacy-table tbody th{color:var(--color-ink);font-weight:600}.privacy-table code{white-space:nowrap;font-size:12px}.privacy-processors{gap:12px;margin-top:20px;display:grid}.privacy-processor{border:1px solid var(--color-line);border-radius:var(--radius-sm);padding:16px}.privacy-processor h3{color:var(--color-ink);margin:0;font-size:16px}.privacy-processor p{margin:8px 0 0;font-size:13px;line-height:1.65}.privacy-processor a{color:var(--color-moss-strong);text-underline-offset:3px;margin-top:10px;font-size:12px;display:inline-block}.page-header{padding-block:0 38px}.leaderboard-card{padding:clamp(18px,3vw,30px)}.leaderboard-table thead{color:var(--color-text-muted);font-size:11px}.leaderboard-table tbody tr:hover,.history-game:hover{background:#4775630f}.rating-card:hover{background:var(--color-canvas-deep)}.rating-card--selected{background:var(--color-moss-soft);border-color:var(--color-moss)}.rating-card>span,.profile-metrics svg,.leaderboard-title svg{color:var(--color-moss-strong)}.rating-chart__grid{stroke:#2827221a}.rating-chart__line{stroke:var(--color-moss)}.rating-chart__point{fill:var(--color-surface-raised);stroke:var(--color-moss)}.rating-chart__point--last{fill:var(--color-moss);stroke:#fff}.profile-avatar{background:var(--color-moss);border-radius:50%}.is-positive{color:var(--color-moss-strong)!important}.is-negative{color:var(--color-danger)!important}.focused-game-shell{background:var(--color-canvas-deep);color:var(--color-ink)}.game-topbar{background:var(--color-canvas);border-bottom:1px solid var(--color-line);min-height:68px}.game-topbar .language-menu-trigger{background:var(--color-surface-raised);border-color:var(--color-line)}.game-topbar .language-menu-trigger>span{display:none}.game-security,.game-connection{color:var(--color-text-muted);font-size:11px}.game-connection[data-state=live],.game-panel-player.is-you strong{color:var(--color-moss-strong)}.game-exit{background:var(--color-surface-raised);border:1px solid var(--color-line);color:var(--color-text-muted);min-height:44px}.game-exit:hover{background:var(--color-canvas-deep);color:var(--color-ink)}.focused-game-layout{grid-template-columns:minmax(0,1fr) minmax(330px,390px);max-width:1520px;min-height:calc(100dvh - 68px)}.game-connection-notice{background:var(--color-warning-soft);border-color:#815b2442}.game-connection-notice[data-state=session_expired]{background:var(--color-danger-soft);border-color:#963f3842}.player-clock{background:var(--color-canvas-deep);border-color:var(--color-line)}.player-clock strong{color:var(--color-ink);font-size:21px}.player-clock.is-running{background:var(--color-ink);border-color:var(--color-ink);box-shadow:inset 3px 0 0 var(--color-moss)}.player-clock.is-running:not(.is-byo-yomi) strong,.player-clock.is-running:not(.is-byo-yomi) span{color:var(--color-canvas)}.player-clock.is-byo-yomi{background:var(--color-warning-soft);border-color:#815b2447}.player-clock.is-byo-yomi strong,.player-clock.is-byo-yomi span{color:var(--color-warning)}.game-actions button{background:var(--color-canvas-deep);color:var(--color-ink);min-height:44px}.game-actions button:hover:not(:disabled){background:#e2dcd1}.chat-panel{grid-template-rows:auto minmax(0,1fr) auto auto;height:clamp(320px,46dvh,440px);min-height:0;max-height:none;overflow:hidden}.chat-list{overscroll-behavior:contain;scrollbar-gutter:stable;min-height:0}.chat-feedback{display:grid}.chat-form{background:var(--color-surface-raised);z-index:1;position:relative}.chat-message p{background:var(--color-canvas-deep);color:var(--color-ink)}.chat-message.is-mine p{background:var(--color-moss);color:#fff}.chat-form input{background:var(--color-canvas);border-color:var(--color-line)}.chat-form button{background:var(--color-ink);color:#fff}.modal-backdrop{-webkit-backdrop-filter:blur(12px)saturate(.82);backdrop-filter:blur(12px)saturate(.82);background:#141412ad;animation:.18s ease-out both overlay-fade-in}.confirm-modal,.result-modal{animation:overlay-panel-in .32s var(--ease-out) both;background:var(--color-surface-raised);box-shadow:var(--shadow-float);color:var(--color-ink);border-color:#fffdf9ad}.confirm-modal{border-top:3px solid var(--color-oxide)}.confirm-modal-icon{background:var(--color-oxide-soft);color:var(--color-oxide)}.modal-close{background:var(--color-canvas-deep);color:var(--color-text-muted)}.result-modal-header{background:var(--color-canvas)}.result-modal.is-loss{border-top-color:var(--color-oxide)}.result-modal.is-loss .result-modal-icon{background:var(--color-oxide)}.result-facts,.result-facts span,.result-score-details{background:var(--color-canvas-deep)}.result-score-summary{background:var(--color-line);border-color:var(--color-line)}.result-score-summary small{color:var(--color-text-muted)}.result-player-list>div.is-winner{background:var(--color-moss-soft)}.result-player-list b{background:var(--color-moss-soft);color:var(--color-moss-strong)}.result-secondary-actions button:hover{background:var(--color-canvas-deep);color:var(--color-ink)}.spin-ring{border-color:#2827221f;border-top-color:var(--color-moss)}.go-board{background:linear-gradient(145deg, #ffffff29, transparent 32%), repeating-linear-gradient(0deg, #5b361606 0 1px, transparent 1px 8px), linear-gradient(135deg, var(--color-board), var(--color-board-deep));border-color:#9c6c35;overflow:clip;box-shadow:inset 0 0 0 1px #fff7e43d,inset 0 0 30px #5b310e29,0 20px 50px #2e231733}.board-line{background:#382313d1}.intersection{touch-action:manipulation}.stone{aspect-ratio:1;transform-origin:50%;width:88%;height:auto}.last-move-mark{background:var(--color-oxide);border:1.5px solid #fff;width:22%;height:22%;box-shadow:0 0 0 1px #2c1412b8}.precision-placement-toolbar button{background:var(--color-surface-raised);border-color:var(--color-line);color:var(--color-ink)}.precision-placement-toolbar button:hover{background:var(--color-canvas)}@keyframes hero-copy-in{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}@keyframes stone-settle{0%{opacity:0;transform:translate(-50%,-16px)scale(.985)}to{opacity:1;transform:translate(-50%)scale(1)}}@keyframes hero-actions-in{0%{opacity:0;transform:translate(-50%,12px)}to{opacity:1;transform:translate(-50%)}}@keyframes ripple-once{0%{opacity:0;transform:translate(-50%,-50%)scale(.8)}32%{opacity:.65}to{opacity:0;transform:translate(-50%,-50%)scale(1.18)}}@keyframes live-pulse{50%{box-shadow:0 0 0 9px #4775631f}}@keyframes overlay-fade-in{0%{opacity:0}to{opacity:1}}@keyframes overlay-panel-in{0%{opacity:0;transform:translateY(18px)scale(.975)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes chapter-copy-reveal{0%{opacity:.12;transform:translateY(42px)}to{opacity:1;transform:translateY(0)}}@keyframes chapter-visual-reveal{0%{clip-path:inset(9% 7% 12% round var(--radius-sm));opacity:.38;transform:translateY(54px)scale(.965)}to{clip-path:inset(0 round var(--radius-sm));opacity:1;transform:translateY(0)scale(1)}}@keyframes transition-grid-resolve{0%{opacity:.08;transform:translateY(-48%)scale(1.08)}to{opacity:.62;transform:translateY(-48%)scale(1)}}@supports (animation-timeline:view()){.home-chapter .chapter-copy{animation:linear both chapter-copy-reveal;animation-timeline:view();animation-range:entry 8% cover 34%}.home-chapter .chapter-visual{animation:linear both chapter-visual-reveal;animation-timeline:view();animation-range:entry 4% cover 38%}.home-chapters:before{animation:linear both transition-grid-resolve;animation-timeline:view();animation-range:entry cover 28%}}@media (max-width:1120px){.sidebar{grid-template-columns:minmax(160px,.8fr) auto minmax(240px,.8fr);padding-inline:24px}.nav-group{gap:24px}.home-chapter{gap:64px}.play-experience{grid-template-columns:minmax(360px,1fr) minmax(380px,.9fr);gap:42px}.play-pace-column{padding-left:38px}.focused-game-layout{grid-template-columns:minmax(0,1fr) 330px}}@media (min-width:841px) and (max-height:820px){.hero-stone-stage{top:var(--page-top-space);width:min(960px,92vw,132svh - 108.24px)}.play-pace-column .time-selector button{min-height:88px;padding-block:13px}.play-pace-heading{margin-bottom:22px}}@media (min-width:841px) and (max-width:1100px){.sidebar{grid-template-rows:64px 46px;grid-template-columns:auto minmax(0,1fr);height:110px;padding:0 24px}.sidebar>.brand{grid-area:1/1}.sidebar-nav{border-top:1px solid #28272212;grid-area:2/1/auto/-1;justify-self:stretch;min-width:0}.nav-group{justify-content:center;gap:clamp(16px,3vw,34px)}.nav-link{min-height:42px;padding-block:10px;font-size:14px}.sidebar-bottom{grid-area:1/2}.app-main{padding-top:110px}.home-hero{height:calc(100svh - 110px)}.play-experience{min-height:calc(100svh - 110px)}}@media (max-width:840px){:root{--page-top-space:32px}.hero-actions{bottom:max(52px, env(safe-area-inset-bottom))}.sidebar{display:none}.app-main{padding-top:60px}.mobile-nav{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--color-line);background:#f5f2ebf2}.mobile-nav>.brand{min-height:44px;padding-right:12px}.icon-button{background:var(--color-surface-raised);border:1px solid var(--color-line);color:var(--color-ink);width:44px;height:44px}.mobile-menu{background:var(--color-surface-raised);border-color:var(--color-line);box-shadow:var(--shadow-soft);padding:14px}.mobile-menu a,.mobile-menu button{color:var(--color-text-muted);font-size:15px}.mobile-menu a.is-active{background:var(--color-moss-soft);color:var(--color-moss-strong)}.mobile-menu .language-menu-trigger{justify-content:flex-start;width:100%}.mobile-menu .language-menu-chevron{margin-left:auto}.mobile-menu .language-menu-popover{box-shadow:none;margin-top:6px;position:static}.app-content{padding:var(--page-top-space) 24px 60px}.app-content:has(.home-experience){padding:0}.app-content:has(.play-experience){padding:0 24px}.play-experience{grid-template-columns:minmax(0,1fr);gap:46px;min-height:0;padding:42px 0 64px}.play-board-preview,.play-board-column .size-selector{width:min(100%,580px);max-width:580px}.play-pace-column{border-left:0;border-top:1px solid var(--color-line);justify-self:center;width:min(100%,680px);max-width:680px;padding-top:42px;padding-left:0}.app-footer nav a,.auth-switch a{align-items:center;min-height:44px;padding-inline:6px;display:inline-flex}.home-hero{height:calc(100svh - 60px)}.home-hero-copy{top:var(--page-top-space)}.hero-stone-stage{width:min(1040px,118vw);top:clamp(108px,14vh,138px)}.hero-edge{display:none}.home-chapter,.home-chapter--learn,.home-chapter--puzzles{grid-template-columns:1fr;gap:52px;min-height:auto}.home-chapter--learn .chapter-copy,.home-chapter--puzzles .chapter-copy{order:2}.chapter-visual{justify-self:center;width:min(100%,580px)}.chapter-copy{max-width:660px}.focused-game-layout{grid-template-columns:1fr}.focused-game-side{grid-template-columns:minmax(260px,.8fr) minmax(320px,1.2fr)}.chat-panel{max-height:none}}@media (max-width:620px){:root{--page-top-space:24px}.app-content{padding:var(--page-top-space) 16px 48px}.match-lobby{grid-template-columns:minmax(0,1fr)}.match-lobby-copy,.match-lobby-card{width:100%;min-width:0}.app-content:has(.home-experience){padding:0}.app-content:has(.play-experience){padding:0 16px}.play-experience{gap:34px;padding:28px 0 48px}.play-board-column{gap:12px}.play-board-column .size-selector button{gap:7px;min-height:52px;padding-inline:6px}.board-size-glyph{width:25px;height:25px}.play-board-column .size-selector strong{font-size:13px}.play-pace-column{padding-top:32px}.play-pace-heading{margin-bottom:22px}.play-pace-heading h1{font-size:clamp(40px,13vw,52px)}.play-pace-column .time-selector button{grid-template-columns:44px minmax(0,1fr) 10px;gap:10px;min-height:88px;padding:14px}.time-selector-icon{width:38px;height:38px}.play-pace-column .time-selector strong{font-size:21px}.play-pace-column .time-selector-copy{flex-direction:column;align-items:flex-start;gap:2px}.play-pace-column .time-selector-copy>span{text-align:left;font-size:12px}.play-match-action{min-height:58px;padding-inline:20px;font-size:19px}.home-hero{height:calc(100svh - 60px)}.home-hero h1{margin-bottom:12px;font-size:22px}.hero-worlds-line{letter-spacing:.13em;font-size:10px}.hero-stone-stage{width:min(650px,max(500px,83svh - 49.8px));top:175px;left:50%}.hero-ripple--one{width:230px}.hero-ripple--two{width:320px}.hero-actions{width:calc(100vw - 32px)}.hero-start{min-height:58px}.hero-live-status{margin-top:14px;font-size:12px}.home-chapters{padding:52px 16px 88px}.home-chapter{gap:36px;padding-block:66px}.chapter-copy h2,.platform-status-heading h2{font-size:clamp(36px,11vw,48px)}.chapter-visual{width:100%}.platform-status{padding:28px 20px}.platform-status-heading{align-items:flex-start}.platform-metrics{grid-template-columns:1fr}.platform-metrics article{border-bottom:1px solid var(--color-line);border-right:0;grid-template-columns:1fr auto;align-items:center;min-height:94px}.platform-metrics article:last-child{border-bottom:0}.content-card-grid{grid-template-columns:1fr}.content-card{border-bottom:1px solid var(--color-line);border-right:0;padding-inline:0}.content-card:last-child{border-bottom:0}.content-split,.content-split--review{grid-template-columns:1fr}.legal-page>header{padding-top:0}.privacy-page h1{-webkit-hyphens:auto;hyphens:auto;overflow-wrap:anywhere;font-size:clamp(36px,11vw,48px)}.legal-section{grid-template-columns:1fr;gap:12px;padding-block:28px}.focused-game-side{grid-template-columns:1fr}.game-topbar{background:var(--color-canvas)}.match-lobby-card{padding:16px}.time-selector{grid-template-columns:1fr}}.learn-path{max-width:1240px}.learn-path__hero .section-kicker svg{color:var(--color-oxide)}.learn-path__chapter-meta{color:var(--color-text-subtle);flex-wrap:wrap;align-items:center;gap:9px 18px;margin-top:26px;font-size:11px;display:flex}.learn-path__chapter-meta strong{color:var(--color-ink);font-size:12px}.learn-path__chapter-meta span{align-items:center;gap:7px;display:inline-flex}.learn-path__chapter-meta span:before{background:var(--color-moss);content:"";border-radius:50%;width:5px;height:5px}.learn-chapter{border-top:1px solid var(--color-line);padding-top:clamp(30px,4vw,48px)}.learn-chapter__header{justify-content:space-between;align-items:end;gap:34px;margin-bottom:28px;display:flex}.learn-chapter__header>div:first-child{max-width:720px}.learn-chapter__header h2{color:var(--color-ink);font-family:var(--font-serif);letter-spacing:-.045em;margin:9px 0 0;font-size:clamp(29px,4.2vw,46px);font-weight:520;line-height:1.05}.learn-progress{flex:0 0 220px}.learn-progress__copy{color:var(--color-text-muted);justify-content:space-between;align-items:baseline;font-size:10px;display:flex}.learn-progress__copy strong{color:var(--color-ink);font-size:13px}.learn-progress__track{background:var(--color-canvas-deep);border-radius:999px;height:5px;margin-top:8px;overflow:hidden}.learn-progress__track span{background:linear-gradient(90deg, var(--color-moss), var(--color-moss-strong));border-radius:inherit;height:100%;transition:width .24s var(--ease-out);display:block}.learn-progress__reset{color:var(--color-text-subtle);cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;margin:7px 0 0 auto;padding:2px 0;font-size:9px;display:flex}.learn-progress__reset:disabled{cursor:default;opacity:.45}.lesson-rail{border:1px solid var(--color-line);border-radius:var(--radius-lg) var(--radius-lg) 0 0;background:#ffffff5c;grid-template-columns:repeat(6,minmax(0,1fr));display:grid;overflow:hidden}.lesson-rail__item{border:0;border-right:1px solid var(--color-line);color:var(--color-text-muted);cursor:pointer;text-align:left;background:0 0;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:9px;min-height:72px;padding:12px 11px;transition:background .15s,color .15s;display:grid}.lesson-rail__item:last-child{border-right:0}.lesson-rail__item.is-active{background:var(--color-surface-raised);box-shadow:inset 0 -3px var(--color-oxide);color:var(--color-ink)}.lesson-rail__number{background:var(--color-canvas-deep);border:1px solid var(--color-line);color:var(--color-text-subtle);border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.lesson-rail__item.is-active .lesson-rail__number{background:var(--color-oxide-soft);color:var(--color-oxide);border-color:#99433247}.lesson-rail__item.is-complete .lesson-rail__number{background:var(--color-moss-soft);color:var(--color-moss-strong);border-color:#3a634a33}.lesson-rail__item>span:last-child{gap:3px;min-width:0;display:grid}.lesson-rail__item strong{font-size:10px;font-weight:680;line-height:1.3}.lesson-rail__item small{color:var(--color-text-subtle);font-size:8px}.lesson-workspace{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:0 0 var(--radius-lg) var(--radius-lg);box-shadow:var(--shadow-soft);grid-template-columns:minmax(420px,1.12fr) minmax(330px,.88fr);min-height:650px;scroll-margin-top:24px;display:grid}.lesson-workspace__board-panel{background:radial-gradient(circle at 18% 12%, #ffffff12, transparent 33%), var(--color-ink);flex-direction:column;min-width:0;padding:clamp(18px,2.5vw,30px);display:flex}.lesson-workspace__board-panel>header{color:#ffffffc2;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.lesson-workspace__board-panel>header>div{gap:4px;display:grid}.lesson-workspace__board-panel>header strong{color:#fff;font-size:12px;font-weight:650}.lesson-workspace__board-panel>header span{font-size:9px}.lesson-turn{background:#ffffff14;border:1px solid #ffffff1a;border-radius:999px;flex:none;align-items:center;gap:7px;padding:7px 10px;display:flex}.lesson-turn i{background:#15130f;border:1px solid #050403;border-radius:50%;width:12px;height:12px;box-shadow:inset -2px -3px 4px #000,0 1px 2px #00000073}.lesson-board-frame{flex:1;justify-content:center;align-items:center;width:100%;min-height:0;display:flex}.lesson-board{aspect-ratio:1;background:linear-gradient(135deg,#fff3,#0000 34%),linear-gradient(145deg,#ddb46f,#c59350);border:1px solid #2b180b80;border-radius:5px;width:100%;max-width:570px;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px #fff3,0 24px 50px #00000047;container-type:inline-size}.lesson-board:after{content:"";pointer-events:none;background:repeating-linear-gradient(92deg,#0000 0 13px,#512d1406 14px 15px);position:absolute;inset:0}.lesson-board__grid,.lesson-board__points{position:absolute;inset:0}.lesson-board__line{z-index:1;background:#321f10c7;position:absolute}.lesson-board__line--vertical{width:1px}.lesson-board__line--horizontal{height:1px}.lesson-board__row{display:contents}.lesson-board__point{appearance:none;cursor:pointer;height:var(--lesson-point-size);width:var(--lesson-point-size);z-index:3;background:0 0;border:0;border-radius:50%;justify-content:center;align-items:center;padding:0;display:flex;position:absolute;transform:translate(-50%,-50%)}.lesson-board__point:before{content:"";opacity:0;border-radius:50%;width:28%;height:28%;transition:opacity .15s,transform .15s;position:absolute}.lesson-board__point:not(.has-stone):hover:before{opacity:1;background:#14110d3d}.lesson-board__point.is-choice:not(.has-stone){box-shadow:inset 0 0 0 1px #472b1447}.lesson-board__point.is-territory-target:before,.lesson-board__point.is-owned:before{opacity:1;background:#f3ca71;box-shadow:0 0 0 3px #fff6c44d,0 2px 5px #57341059}.lesson-board__point.is-territory-target:before{background:0 0;border:3px solid #f4cf76;width:38%;height:38%}.lesson-board__point.is-owned:before{width:32%;height:32%}.lesson-board__point.is-hint:not(.has-stone){animation:1.35s ease-in-out infinite lesson-point-pulse;box-shadow:inset 0 0 0 3px #f7e0a7,0 0 0 4px #693f1b57}.lesson-board__point.is-marked:before{background:var(--color-moss-strong);opacity:1;border:2px solid #ffffffc7;width:24%;height:24%;box-shadow:0 2px 7px #17392461}.lesson-board__stone{pointer-events:none;z-index:2;border-radius:50%;width:90%;height:90%;display:none;position:relative}.lesson-board__point.has-stone{cursor:default}.lesson-board__point.has-stone .lesson-board__stone{display:block}.lesson-board__point.is-black .lesson-board__stone{background:radial-gradient(circle at 34% 28%,#4c4943 0,#211f1b 38%,#080706 78%);border:1px solid #050403;box-shadow:inset -3px -4px 7px #000,0 3px 5px #2f1c0d7a}.lesson-board__point.is-white .lesson-board__stone{background:radial-gradient(circle at 35% 27%,#fff 0,#f2ede4 45%,#c9bda9 100%);border:1px solid #a89883;box-shadow:inset -3px -4px 6px #84715733,0 3px 5px #2f1c0d57}.lesson-board__point:focus-visible{outline-offset:2px;outline:3px solid #fff4cb}@keyframes lesson-point-pulse{0%,to{box-shadow:inset 0 0 0 3px #f7e0a7,0 0 0 4px #693f1b47}50%{box-shadow:inset 0 0 0 3px #fff2c7,0 0 0 8px #693f1b33}}.lesson-workspace__lesson-panel{flex-direction:column;min-width:0;padding:clamp(26px,3.5vw,46px);display:flex}.lesson-copy__eyebrow,.lesson-task>span,.lesson-takeaway>span{color:var(--color-oxide);letter-spacing:.08em;text-transform:uppercase;font-size:9px;font-weight:700}.lesson-copy h3{color:var(--color-ink);font-family:var(--font-serif);letter-spacing:-.04em;margin:10px 0 14px;font-size:clamp(28px,3.2vw,39px);font-weight:520;line-height:1.05}.lesson-copy>p,.lesson-task p,.lesson-feedback p,.lesson-hint p,.lesson-takeaway p,.learn-chapter-complete p{color:var(--color-text-muted);margin:0;font-size:13px;line-height:1.62}.lesson-task{background:var(--color-canvas-deep);border-left:3px solid var(--color-oxide);margin-top:26px;padding:16px 18px 17px}.lesson-task>span,.lesson-takeaway>span{align-items:center;gap:6px;display:flex}.lesson-task h4{color:var(--color-ink);margin:9px 0 5px;font-size:12px}.lesson-feedback{border-bottom:1px solid var(--color-line);grid-template-columns:28px minmax(0,1fr);align-items:flex-start;gap:10px;padding:19px 0;display:grid}.lesson-feedback>span{background:var(--color-canvas-deep);color:var(--color-text-subtle);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.lesson-feedback.is-success>span{background:var(--color-moss-soft);color:var(--color-moss-strong)}.lesson-feedback.is-success p{color:var(--color-moss-strong);font-weight:620}.lesson-feedback.is-wrong>span{background:var(--color-oxide-soft);color:var(--color-oxide)}.lesson-hint,.lesson-takeaway{background:#cfaa571a;border:1px solid #ac7d302e;grid-template-columns:20px minmax(0,1fr);align-items:flex-start;gap:9px;margin-top:14px;padding:13px 14px;display:grid}.lesson-hint>svg{color:#9b6a22;margin-top:2px}.lesson-takeaway{background:var(--color-moss-soft);border-color:#3a634a26;display:block}.lesson-takeaway>span{color:var(--color-moss-strong);margin-bottom:6px}.lesson-actions{flex-wrap:wrap;gap:4px;margin:10px 0 20px;display:flex}.lesson-actions .button--ghost{color:var(--color-text-subtle);padding-inline:8px;font-size:10px}.lesson-pagination{border-top:1px solid var(--color-line);justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:19px;display:flex}.lesson-pagination__previous{color:var(--color-text-muted);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:9px 0;font-size:11px;display:inline-flex}.lesson-pagination__previous:disabled{cursor:default;opacity:.35}.lesson-pagination .button{min-height:40px;font-size:11px}.lesson-pagination .button.is-disabled{cursor:not-allowed;opacity:.5;pointer-events:none}.learn-chapter-complete{background:var(--color-moss-soft);border-radius:var(--radius-lg);border:1px solid #3a634a2e;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:16px;margin-top:20px;padding:20px;display:grid}.learn-chapter-complete>span{background:var(--color-moss-strong);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.learn-chapter-complete strong{color:var(--color-ink);font-family:var(--font-serif);margin-bottom:4px;font-size:20px;font-weight:540;display:block}@media (max-width:1050px){.lesson-rail{grid-template-columns:repeat(3,minmax(0,1fr))}.lesson-rail__item:nth-child(3){border-right:0}.lesson-rail__item:nth-child(-n+3){border-bottom:1px solid var(--color-line)}.lesson-workspace{grid-template-columns:minmax(360px,1fr) minmax(310px,.82fr)}}@media (max-width:820px){.learn-chapter__header{flex-direction:column;align-items:stretch;gap:20px}.learn-progress{flex-basis:auto}.lesson-workspace{grid-template-columns:1fr}.lesson-workspace__board-panel{min-height:540px}.lesson-workspace__lesson-panel{min-height:580px}}@media (max-width:620px){.learn-path__hero{padding-top:18px}.learn-path__hero h1{font-size:clamp(40px,13vw,54px)}.lesson-rail{overscroll-behavior-inline:contain;scroll-snap-type:x proximity;display:flex;overflow-x:auto}.lesson-rail__item,.lesson-rail__item:nth-child(3),.lesson-rail__item:nth-child(-n+3){border-bottom:0;border-right:1px solid var(--color-line);scroll-snap-align:start;flex:0 0 172px}.lesson-rail__item:last-child{border-right:0}.lesson-workspace__board-panel{min-height:auto;padding:14px}.lesson-workspace__board-panel>header{align-items:flex-start;margin-bottom:14px}.lesson-workspace__board-panel>header>div span{display:none}.lesson-board-frame{min-height:0}.lesson-workspace__lesson-panel{min-height:560px;padding:26px 20px 20px}.lesson-copy h3{font-size:clamp(29px,9vw,36px)}.learn-chapter-complete{grid-template-columns:38px minmax(0,1fr);align-items:start}.learn-chapter-complete>span{width:38px;height:38px}.learn-chapter-complete .button{grid-column:1/-1}}@media (max-width:390px){.learn-path__chapter-meta{flex-direction:column;align-items:flex-start}.lesson-workspace__board-panel>header{gap:8px}.lesson-turn{padding-inline:8px}.lesson-pagination__previous span{display:none}}@media (prefers-reduced-motion:reduce){.lesson-board__point.is-hint,.learn-progress__track span{transition:none;animation:none}}.learn-path{max-width:1180px;padding-top:18px}.learn-chapter{border:0;padding:0 0 clamp(52px,7vw,96px)}.learn-course__header{justify-content:space-between;align-items:end;gap:clamp(32px,7vw,96px);margin-bottom:clamp(32px,5vw,58px);display:flex}.learn-course__intro{max-width:700px}.learn-course__intro h1{color:var(--color-ink);letter-spacing:-.055em;margin:16px 0 20px;font-size:clamp(44px,6vw,72px);font-weight:540;line-height:.98}.learn-course__intro>p{color:var(--color-text-muted);max-width:640px;margin:0;font-size:clamp(15px,1.5vw,18px);line-height:1.65}.learn-progress{flex:0 0 210px;padding-bottom:5px}.learn-progress__copy{letter-spacing:.02em;font-size:11px}.learn-progress__copy strong{font-size:12px;font-weight:650}.learn-progress__track{background:#28272217;height:3px;margin-top:10px}.learn-progress__track span{background:var(--color-moss-strong)}.learn-progress__reset{margin-top:10px;font-size:10px}.lesson-rail{border:solid var(--color-line);scrollbar-width:none;background:0 0;border-width:1px 0;border-radius:0;grid-template-columns:repeat(6,minmax(0,1fr));overflow:visible}.lesson-rail::-webkit-scrollbar{display:none}.lesson-rail__item{color:var(--color-text-subtle);border-right:0;align-items:center;gap:8px;min-height:54px;padding:10px 8px;display:flex}.lesson-rail__item:hover{color:var(--color-ink);background:0 0}.lesson-rail__item.is-active{box-shadow:inset 0 -2px var(--color-ink);background:0 0}.lesson-rail__number{color:inherit;background:0 0;border:0;border-radius:0;flex:0 0 18px;justify-content:flex-start;width:auto;height:auto;font-size:11px}.lesson-rail__item.is-active .lesson-rail__number{color:var(--color-ink);background:0 0;border:0}.lesson-rail__item.is-complete .lesson-rail__number{color:var(--color-moss-strong);background:0 0;border:0}.lesson-rail__item>span:last-child{font-size:11px;font-weight:620;line-height:1.25;display:block}.lesson-workspace{box-shadow:none;background:0 0;border:0;border-radius:0;grid-template-columns:minmax(420px,1.08fr) minmax(330px,.92fr);gap:clamp(34px,6vw,78px);min-height:0;margin-top:clamp(28px,4vw,46px)}.lesson-workspace__board-panel{background:var(--color-canvas-deep);border:1px solid var(--color-line);border-radius:3px;padding:clamp(18px,2.4vw,28px)}.lesson-workspace__board-panel>header{color:var(--color-text-subtle);margin-bottom:18px}.lesson-workspace__board-panel>header>span{letter-spacing:.08em;text-transform:uppercase;font-size:10px;font-weight:650}.lesson-turn{color:var(--color-ink);background:0 0;border:0;border-radius:0;padding:0;font-size:11px;font-weight:600}.lesson-turn i{width:10px;height:10px}.lesson-workspace__board-panel>header .lesson-turn{color:var(--color-ink)}.lesson-board{border-color:#432a1561;border-radius:2px;max-width:500px;box-shadow:0 20px 45px #49392329}.lesson-board__point.is-choice:not(.has-stone):before{opacity:1;background:0 0;border:2px solid #1718167a;width:25%;height:25%}.lesson-board__point.is-territory-target:before{border-color:var(--color-oxide);box-shadow:none}.lesson-workspace__lesson-panel{min-height:0;padding:clamp(18px,2vw,30px) 0 4px}.lesson-copy__eyebrow{color:var(--color-moss-strong);letter-spacing:.12em;font-size:10px}.lesson-copy h2{color:var(--color-ink);letter-spacing:-.05em;margin:13px 0 20px;font-size:clamp(36px,4.2vw,52px);font-weight:530;line-height:1.02}.lesson-copy>p{color:var(--color-text-muted);margin:0;font-size:15px;line-height:1.7}.lesson-task{border:solid var(--color-line);background:0 0;border-width:1px 0;margin-top:30px;padding:19px 0 21px}.lesson-task h3{color:var(--color-text-subtle);letter-spacing:.1em;text-transform:uppercase;margin:0 0 8px;font-size:10px;font-weight:700}.lesson-task p{color:var(--color-ink);font-size:15px;line-height:1.55}.lesson-feedback{border:0;align-items:flex-start;gap:9px;padding:18px 0 0;display:flex}.lesson-feedback>svg{color:var(--color-moss-strong);flex:none;margin-top:2px}.lesson-feedback p{font-size:13px}.lesson-feedback.is-progress p,.lesson-feedback.is-success p{color:var(--color-moss-strong);font-weight:620}.lesson-feedback.is-wrong p{color:var(--color-oxide)}.lesson-hint{background:var(--color-canvas-deep);border:0;margin-top:16px;padding:13px 14px}.lesson-hint p{font-size:12px}.lesson-actions{gap:18px;margin:19px 0 0}.lesson-text-action{color:var(--color-text-muted);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:5px 0;font-size:11px;display:inline-flex}.lesson-text-action:hover{color:var(--color-ink)}.lesson-pagination{margin-top:clamp(30px,5vw,64px);padding-top:20px}.lesson-pagination__previous{color:var(--color-text-muted);font-size:12px}.lesson-pagination .button{border-radius:2px;min-height:44px;padding-inline:18px;font-size:12px}.learn-chapter-complete{border:solid var(--color-line);background:0 0;border-width:1px 0;border-radius:0;grid-template-columns:28px minmax(0,1fr) auto;margin-top:34px;padding:24px 0}.learn-chapter-complete>svg{color:var(--color-moss-strong)}.learn-chapter-complete strong{font-family:inherit;font-size:18px;font-weight:650}@media (max-width:900px){.learn-course__header{flex-direction:column;align-items:stretch;gap:26px}.learn-progress{flex-basis:auto;max-width:320px}.lesson-rail{overscroll-behavior-inline:contain;scroll-snap-type:x proximity;display:flex;overflow-x:auto}.lesson-rail__item,.lesson-rail__item:nth-child(3),.lesson-rail__item:nth-child(-n+3){scroll-snap-align:start;border:0;flex:0 0 145px}.lesson-workspace{grid-template-columns:1fr;gap:34px}.lesson-workspace__board-panel{min-height:0}.lesson-workspace__lesson-panel{min-height:0;padding:4px 0 0}.lesson-copy{max-width:650px}}@media (max-width:620px){.learn-path{padding-top:18px}.learn-course__intro h1{font-size:clamp(40px,12vw,52px)}.lesson-rail__item,.lesson-rail__item:nth-child(3),.lesson-rail__item:nth-child(-n+3){flex-basis:132px;min-height:50px;padding-inline:6px}.lesson-workspace__board-panel{padding:12px}.lesson-workspace__board-panel>header{align-items:center;margin:2px 2px 12px}.lesson-board-frame{min-height:0}.lesson-copy h2{font-size:clamp(34px,10vw,44px)}.lesson-pagination{margin-top:34px}.learn-chapter-complete{grid-template-columns:24px minmax(0,1fr)}.learn-chapter-complete .button{grid-column:1/-1}}.product-page-title.product-page-title{letter-spacing:-.055em;font-family:inherit;font-size:clamp(36px,4vw,52px);font-weight:540;line-height:.98}@media (max-width:390px){.mobile-nav{padding-inline:10px}.hero-stone-stage{width:min(620px,max(500px,83svh - 49.8px));top:165px}.hero-actions{width:calc(100vw - 24px)}.home-chapters{padding-inline:12px}.platform-status{border-radius:var(--radius-md);padding-inline:16px}.content-hero h1,.match-lobby-copy h1{font-size:clamp(38px,12vw,46px)}.lobby-options,.lobby-options>div,.time-selector,.time-selector button{width:100%;min-width:0}.time-selector button{grid-template-columns:minmax(0,.8fr) minmax(0,1fr) minmax(0,1fr)}.play-pace-column .time-selector button{grid-template-columns:42px minmax(0,1fr) 10px}.time-selector button>span,.time-selector small{overflow-wrap:anywhere;min-width:0}}@media (max-width:340px){.home-hero-copy{width:100%}.hero-worlds-line{letter-spacing:.1em;white-space:normal;font-size:9px}}@media (max-height:620px){.home-hero-copy{top:24px}.hero-stone-stage{top:34px}.hero-actions{bottom:max(14px, env(safe-area-inset-bottom))}.hero-live-status{margin-top:10px}}@media (max-width:840px) and (max-height:620px){.home-hero h1{margin-bottom:8px;font-size:19px}.home-hero-copy{top:18px}.hero-stone-stage{width:min(560px,max(420px,105svh - 63px));top:72px}.hero-start{min-height:54px}}@media (prefers-reduced-motion:reduce){.home-hero-copy,.hero-stone-stage,.hero-actions,.hero-ripple,.home-chapter .chapter-copy,.home-chapter .chapter-visual,.home-chapters:before,.stone,.modal-backdrop,.confirm-modal,.result-modal{opacity:1;animation:none!important}.play-board-preview-grid{animation:none!important}.home-chapter .chapter-visual{clip-path:none;transform:none}}.rating-label{font-variant-numeric:tabular-nums;letter-spacing:-.015em}.rating-label--compact{white-space:nowrap;align-items:baseline;gap:5px;display:flex}.rating-label--compact strong{font-size:11px;font-weight:680}.rating-label--compact small{color:var(--color-text-subtle);font-size:10px}.rating-label--compact small:before{content:"·";margin-right:5px}.rating-label--hero{gap:3px;display:grid}.rating-label--hero strong{letter-spacing:-.06em;font-size:clamp(43px,5vw,66px);font-weight:510;line-height:.96}.rating-label--hero small{color:#ffffff94;font-size:14px;font-weight:540}.sidebar-user{justify-content:flex-start;max-width:220px;padding:7px 11px 7px 8px}.sidebar-user--profile{max-width:190px;transition:border-color var(--duration-fast), box-shadow var(--duration-fast);gap:9px;padding:7px 13px 7px 8px}.sidebar-user--profile:hover,.sidebar-user--profile:focus-visible{border-color:#74402852;box-shadow:0 4px 12px #39261714}.sidebar-user__name{color:var(--color-ink);letter-spacing:-.018em;text-overflow:ellipsis;white-space:nowrap;max-width:124px;font-size:13px;font-weight:470;line-height:1;overflow:hidden}.mobile-menu-link-copy{flex:1}.mobile-menu .rating-label--compact{margin-left:auto}.mobile-menu .rating-label--compact strong{color:var(--color-moss-strong)}.profile-symbol{isolation:isolate;vertical-align:middle;flex:none;display:inline-flex;position:relative;overflow:hidden}.profile-symbol>svg{width:100%;height:100%;display:block}.profile-symbol--xs{width:18px;height:18px}.profile-symbol--sm{width:28px;height:28px}.profile-symbol--md{width:44px;height:44px}.profile-symbol--lg{width:76px;height:76px}.profile-symbol--kifu-classic{background:#c99b5d;border-radius:15%;box-shadow:inset 0 0 0 1px #4a2b1529,inset 0 1px #ffffff3d,0 4px 12px #3926171f}.profile-symbol__kifu-board{fill:#c99b5d}.profile-symbol__kifu-grid{fill:none;opacity:.72;stroke:#5b3a24;stroke-width:2.1px}.profile-symbol__stone{stroke-width:1.5px}.profile-symbol__stone--black{fill:#171411;stroke:#0a0908}.profile-symbol__stone--white{fill:#f7f1e6;stroke:#9d825f}.profile-symbol--urushi-mon{background:#651d1c;border-radius:15%;box-shadow:inset 0 0 0 1px #2d080861,inset 0 1px #ffffff24,0 4px 12px #390e0d29}.profile-symbol__urushi-ring{fill:none;stroke:#c7a36a;stroke-width:2.1px}.profile-symbol__urushi-shell{fill:#efe1c2;stroke:#c7a36a;stroke-linejoin:round;stroke-width:1.35px}.profile-symbol__urushi-stone-rim{fill:#c7a36a}.profile-symbol__urushi-glint{fill:#ffffff38}.profile-symbol--xs .profile-symbol__detail,.profile-symbol--xs .profile-symbol__urushi-glint{display:none}.profile-avatar-trigger{appearance:none;cursor:pointer;background:0 0;border:0;border-radius:14px;padding:0;display:inline-flex;position:relative}.profile-avatar-trigger:after{content:"";pointer-events:none;border:1.5px solid #0000;border-radius:16px;transition:border-color .15s,box-shadow .15s;position:absolute;inset:-5px}.profile-avatar-trigger:hover:after{border-color:#7440283d}.profile-avatar-trigger:focus-visible{outline:none}.profile-avatar-trigger:focus-visible:after{border-color:var(--color-oxide);box-shadow:0 0 0 3px #99433229}.profile-avatar-trigger__edit{background:var(--color-ink);border:2px solid var(--color-canvas);color:var(--color-surface-raised);border-radius:50%;justify-content:center;align-items:center;width:25px;height:25px;display:flex;position:absolute;bottom:-5px;right:-5px}.profile-avatar-picker{border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);background:linear-gradient(145deg,#ffffffb3,#f5efe5c7);gap:20px;max-width:680px;margin:-12px 0 28px;padding:clamp(20px,3vw,28px);animation:.18s ease-out both profile-symbol-picker-in;display:grid}@keyframes profile-symbol-picker-in{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.profile-avatar-picker__heading{gap:5px;display:grid}.profile-avatar-picker__heading h2{font-family:var(--font-serif);letter-spacing:-.025em;margin:0;font-size:clamp(22px,3vw,29px);font-weight:520}.profile-avatar-picker__heading p{color:var(--color-text-muted);margin:0;line-height:1.55}.profile-avatar-options{border:0;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;min-width:0;margin:0;padding:0;display:grid}.profile-avatar-option{border:1px solid var(--color-line);border-radius:var(--radius-md);cursor:pointer;background:#ffffffa8;grid-template-columns:44px minmax(0,1fr);align-items:center;gap:13px;min-height:78px;padding:14px;transition:border-color .15s,box-shadow .15s,transform .15s;display:grid;position:relative}.profile-avatar-option:hover{border-color:#74402859;transform:translateY(-1px)}.profile-avatar-option:has(input:checked){border-color:var(--color-oxide);box-shadow:inset 0 0 0 1px var(--color-oxide), 0 6px 16px #4e251b14}.profile-avatar-option:has(input:focus-visible){outline-offset:2px;outline:3px solid #9943322e}.profile-avatar-option input{opacity:0;width:1px;height:1px;position:absolute}.profile-avatar-option__copy{gap:4px;display:grid}.profile-avatar-option__copy strong{color:var(--color-ink);font-size:14px}.profile-avatar-option__copy small{color:var(--color-text-muted);font-size:12px;line-height:1.4}.profile-avatar-picker__actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.profile-avatar-picker__status{color:var(--color-text-muted);margin-left:4px;font-size:13px}.profile-board-placement{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:14px;gap:18px;margin-bottom:24px;padding:clamp(18px,3vw,26px);display:grid}.profile-board-placement header{gap:5px;display:grid}.profile-board-placement h2,.profile-board-placement p{margin:0}.profile-board-placement p{color:var(--color-ink-muted);line-height:1.5}.profile-board-placement fieldset{border:0;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0;padding:0;display:grid}.profile-board-placement label{border:1px solid var(--color-line);cursor:pointer;border-radius:10px;align-items:flex-start;gap:11px;padding:14px;display:flex}.profile-board-placement label:has(input:checked){border-color:var(--color-moss);box-shadow:inset 3px 0 var(--color-moss)}.profile-board-placement label span{gap:3px;display:grid}.profile-board-placement label small{color:var(--color-ink-muted);line-height:1.4}.profile-board-placement__actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.profile-board-placement__actions span{color:var(--color-moss-strong);font-size:13px}@media (max-width:620px){.profile-board-placement fieldset{grid-template-columns:1fr}}.profile-header{background:linear-gradient(135deg, var(--color-surface-raised), #f8f4eceb);border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-hairline);isolation:isolate;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:0;min-height:188px;margin-bottom:24px;padding:clamp(28px,4vw,48px);position:relative;overflow:hidden}.profile-header:before{content:"";opacity:.72;pointer-events:none;z-index:-1;background-image:linear-gradient(#57432917 1px,#0000 1px),linear-gradient(90deg,#57432917 1px,#0000 1px);background-size:26px 26px;position:absolute;inset:-36px -28px -36px 54%;-webkit-mask-image:linear-gradient(90deg,#0000,#000 52%);mask-image:linear-gradient(90deg,#0000,#000 52%)}.profile-header__primary{display:contents}.profile-header__primary>.profile-avatar-trigger{grid-column:1;place-self:center}.profile-header__identity{text-align:center;grid-column:2;place-self:center;min-width:0}.profile-header__identity .section-kicker{color:var(--color-moss-strong);letter-spacing:.16em;font-size:10px;font-weight:680}.profile-header__identity h1{color:var(--color-ink);letter-spacing:-.04em;overflow-wrap:anywhere;margin:10px 0 7px;font-size:clamp(34px,4vw,48px);font-weight:460;line-height:1.04}.profile-header__handle{color:var(--color-text-subtle);letter-spacing:.02em;margin:0;font-size:13px}.profile-header__actions{grid-column:3;justify-self:end;align-items:center;display:flex}.profile-header__actions .button{border-radius:var(--radius-pill);min-height:42px;padding-inline:18px}.profile-performance{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-hairline);overflow:hidden}.profile-performance__main{grid-template-columns:minmax(220px,.34fr) minmax(0,1fr);min-height:380px;display:grid}.profile-rating-band{background:var(--color-ink);color:var(--color-surface-raised);flex-direction:column;justify-content:flex-end;padding:clamp(28px,4vw,48px);display:flex;position:relative;overflow:hidden}.profile-rating-band:before{content:"";opacity:.68;background:radial-gradient(circle at 31% 27%,#575954,#171916 48%,#080908 78%);border:1px solid #ffffff14;border-radius:50%;width:138px;height:138px;position:absolute;top:-38px;right:-42px;box-shadow:0 24px 60px #00000059}.profile-rating-band__eyebrow{color:#ffffff94;letter-spacing:.07em;text-transform:uppercase;align-items:center;gap:7px;margin-bottom:18px;font-size:10px;font-weight:680;display:flex}.profile-rating-band>p{color:#ffffff94;margin:14px 0 0;font-size:12px}.profile-rating-band>strong{align-items:baseline;gap:7px;margin-top:28px;font-size:17px;font-weight:650;display:flex}.profile-rating-band>strong small{color:#ffffff7a;font-size:10px;font-weight:560}.profile-rating-plot{flex-direction:column;min-width:0;padding:clamp(26px,3.4vw,44px) clamp(22px,3.5vw,48px) 24px;display:flex}.profile-rating-plot>header{justify-content:space-between;align-items:end;gap:18px;display:flex}.profile-rating-plot h2{letter-spacing:-.045em;margin:5px 0 0;font-size:clamp(24px,3vw,34px);font-weight:520}.profile-rating-plot .rating-chart{flex:1}.profile-performance .profile-metrics{border-top:1px solid var(--color-line);grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:0;display:grid;overflow:visible}.profile-performance .profile-metrics article{border-right:1px solid var(--color-line);background:0 0;border-radius:0;min-height:104px;padding:20px clamp(18px,2.5vw,32px)}.profile-performance .profile-metrics article:last-child{border-right:0}.profile-performance .profile-metrics svg{color:var(--color-moss-strong)}.profile-history{background:var(--color-surface-raised);border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-hairline);margin-top:24px}.profile-history__heading h2{color:var(--color-ink);letter-spacing:-.04em;font-size:clamp(25px,3vw,34px);font-weight:520}.profile-history__heading>span{background:var(--color-canvas);border-color:var(--color-line);color:var(--color-text-subtle)}.history-game{border-color:var(--color-line);padding-block:16px}.history-game:hover{background:#eee9df6b}.result-dot--win,.history-game__result--win{background:var(--color-moss-soft);color:var(--color-moss-strong)}.result-dot--loss,.history-game__result--loss{background:var(--color-oxide-soft);color:var(--color-oxide-strong)}.result-dot--draw,.history-game__result--draw{background:var(--color-canvas-deep);color:var(--color-text-muted)}.rating-chart{margin:14px 0 0;padding:0;overflow-x:auto}.rating-chart svg{min-width:520px}.rating-chart__grid{stroke:#2827221a;stroke-dasharray:2 6}.rating-chart__area{fill:url(#rating-area)}.rating-chart__area-start{stop-color:var(--color-moss);stop-opacity:.18}.rating-chart__area-end{stop-color:var(--color-moss);stop-opacity:0}.rating-chart__line{stroke:var(--color-moss-strong);stroke-width:3px;vector-effect:non-scaling-stroke}.rating-chart__point{fill:var(--color-surface-raised);stroke:var(--color-moss-strong);stroke-width:2px;vector-effect:non-scaling-stroke}.rating-chart__point--last{fill:var(--color-moss-strong);stroke:var(--color-surface-raised);stroke-width:3px}.rating-chart__axis,.rating-chart__date{fill:var(--color-text-subtle);font-size:9px}.rating-chart__current{fill:var(--color-moss-strong);font-size:10px;font-weight:700}.rating-chart-empty{border:1px dashed var(--color-line);background:0 0;min-height:250px}.rating-chart-empty>span{color:var(--color-moss-strong);font-size:clamp(36px,5vw,48px);font-weight:520}@media (max-width:1120px){.profile-performance__main{grid-template-columns:minmax(200px,.3fr) minmax(0,1fr)}}@media (max-width:760px){.profile-performance__main{grid-template-columns:1fr}.profile-rating-band{min-height:250px}}@media (max-width:620px){.profile-avatar-options{grid-template-columns:1fr}.profile-avatar-picker{border-radius:var(--radius-md)}.profile-header{text-align:center;grid-template-columns:1fr;justify-items:center;gap:16px;min-height:0;padding:30px 22px}.profile-header:before{inset:42% -30px -48px;-webkit-mask-image:linear-gradient(#0000,#000);mask-image:linear-gradient(#0000,#000)}.profile-header__primary{grid-column:1;justify-items:center;gap:14px;display:grid}.profile-header__identity{text-align:center;grid-column:1}.profile-header__actions{grid-column:1;justify-self:center}.profile-performance{border-radius:var(--radius-md)}.profile-rating-band{min-height:220px;padding:28px 24px}.profile-rating-band:before{width:112px;height:112px}.profile-rating-band>strong{margin-top:20px}.profile-rating-plot{padding:28px 18px 18px}.profile-rating-plot>header{flex-direction:column;align-items:flex-start;gap:12px}.profile-performance .profile-metrics{grid-template-columns:1fr}.profile-performance .profile-metrics article{border-bottom:1px solid var(--color-line);border-right:0}.profile-performance .profile-metrics article:last-child{border-bottom:0}}.learn-path__hero{max-width:760px;padding-bottom:clamp(28px,4vw,46px)}.learn-path__hero h1{max-width:720px;font-size:clamp(42px,6vw,68px)}.learn-chapter{padding-top:clamp(20px,3vw,34px)}.learn-course{grid-template-columns:258px minmax(0,1fr);align-items:start;gap:18px;display:grid}.learn-course__sidebar{border:1px solid var(--color-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);background:#ffffff73;position:sticky;top:84px;overflow:hidden}.learn-course__intro{padding:22px 20px 16px}.learn-course__intro h2{color:var(--color-ink);font-family:var(--font-serif);letter-spacing:-.025em;margin:10px 0 0;font-size:21px;font-weight:540;line-height:1.2}.learn-course__intro .learn-path__chapter-meta{gap:8px 14px;margin-top:15px}.learn-course .learn-progress{border-top:1px solid var(--color-line);padding:14px 20px 13px}.learn-course .lesson-rail{border:0;border-top:1px solid var(--color-line);background:0 0;border-radius:0;flex-direction:column;display:flex;overflow:visible}.learn-course .lesson-rail__item,.learn-course .lesson-rail__item:nth-child(3),.learn-course .lesson-rail__item:nth-child(-n+3){border-bottom:1px solid var(--color-line);border-right:0;min-height:62px;padding:10px 16px}.learn-course .lesson-rail__item:last-child{border-bottom:0}.learn-course .lesson-rail__item.is-active{box-shadow:inset 3px 0 var(--color-oxide)}.learn-course .lesson-rail__item strong{font-size:11px}.learn-course .lesson-rail__item small{font-size:9px}.learn-course .lesson-workspace{border-radius:var(--radius-lg);grid-template-columns:minmax(390px,1.08fr) minmax(330px,.92fr);min-height:620px;overflow:hidden}.learn-course .lesson-board{max-width:510px}.learn-course .lesson-workspace__lesson-panel{padding:clamp(26px,3vw,38px)}.learn-course .lesson-copy h3{font-size:clamp(27px,3vw,36px)}@media (max-width:1080px){.learn-course{grid-template-columns:1fr}.learn-course__sidebar{position:static}.learn-course .lesson-rail{grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.learn-course .lesson-rail__item,.learn-course .lesson-rail__item:nth-child(3),.learn-course .lesson-rail__item:nth-child(-n+3){border-bottom:1px solid var(--color-line);border-right:1px solid var(--color-line)}.learn-course .lesson-rail__item:nth-child(3n){border-right:0}.learn-course .lesson-rail__item:nth-child(n+4){border-bottom:0}.learn-course .lesson-rail__item.is-active{box-shadow:inset 0 -3px var(--color-oxide)}}@media (max-width:820px){.learn-course .lesson-workspace{grid-template-columns:1fr}.learn-course .lesson-workspace__board-panel{min-height:520px}.learn-course .lesson-workspace__lesson-panel{min-height:0}}@media (max-width:620px){.learn-path__hero{padding-bottom:28px}.learn-path__hero h1{font-size:clamp(38px,12vw,52px)}.learn-course__intro{padding:18px 16px 14px}.learn-course__intro h2{font-size:19px}.learn-course .lesson-rail{grid-template-columns:repeat(2,minmax(0,1fr));display:grid;overflow:visible}.learn-course .lesson-rail__item,.learn-course .lesson-rail__item:nth-child(3),.learn-course .lesson-rail__item:nth-child(-n+3),.learn-course .lesson-rail__item:nth-child(n+4){border-bottom:1px solid var(--color-line);border-right:1px solid var(--color-line);min-width:0}.learn-course .lesson-rail__item:nth-child(2n){border-right:0}.learn-course .lesson-rail__item:nth-child(n+5){border-bottom:0}.learn-course .lesson-rail__item.is-active{box-shadow:inset 0 -3px var(--color-oxide)}.learn-course .lesson-workspace__board-panel{min-height:auto}.learn-course .lesson-workspace__lesson-panel{padding:25px 20px 20px}}.page-header,.friends-hero,.legal-page>header{border-bottom:1px solid var(--color-line);margin-bottom:28px;padding:48px 0 24px}.page-header h1,.friends-hero h1,.legal-page h1,.not-found-page h1,.auth-card h1{letter-spacing:-.045em;margin:0;font-family:inherit;font-size:clamp(36px,4vw,52px);font-weight:560;line-height:1}.play-experience{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:start;gap:clamp(34px,5vw,72px);min-height:0;padding:48px 0 80px}.play-board-preview{box-shadow:0 2px 2px #30231314,0 12px 28px #3023131a}.play-board-column .size-selector button{gap:0;min-height:48px}.play-pace-column{justify-content:flex-start;padding-top:2px;padding-left:clamp(28px,4vw,58px)}.play-pace-heading{border-bottom:1px solid var(--color-line);margin-bottom:0;padding-bottom:18px}.play-pace-heading h1{letter-spacing:-.035em;font-family:inherit;font-size:clamp(28px,3vw,38px);font-weight:590;line-height:1.05}.play-pace-column .time-selector{background:0 0;border:0;border-radius:0}.play-pace-column .time-selector button{grid-template-columns:minmax(0,1fr) 12px;min-height:72px;padding:14px 4px}.play-pace-column .time-selector button.is-selected{box-shadow:inset 3px 0 var(--color-moss);background:0 0;padding-left:16px}.play-pace-column .time-selector strong{font-family:inherit;font-size:17px;font-weight:650}.play-match-status{border:0;border-left:3px solid var(--color-line-strong);background:0 0;border-radius:0;padding:7px 10px}.play-match-action{border-radius:2px;min-height:56px;font-family:inherit;font-size:16px;font-weight:680}.leaderboard-card{box-shadow:none;background:0 0;border:0;border-radius:0;padding:0}.leaderboard-title{border-bottom:1px solid var(--color-line);padding:0 0 12px}.leaderboard-method{color:var(--color-text-muted);margin:10px 0 20px;font-size:12px}.leaderboard-viewer{border-block:1px solid var(--color-line);border-radius:0}.leaderboard-table table{font-variant-numeric:tabular-nums}.friends-page{gap:28px;padding-top:0}.friends-hero{background:0 0;border-radius:0;align-items:end;min-height:0}.friends-summary{border:0;border-left:1px solid var(--color-line);background:0 0;border-radius:0;width:auto;height:auto;padding-left:22px}.friends-summary strong{font-size:24px}.friends-summary span{max-width:none;margin-top:4px}.player-search,.friends-card{box-shadow:none;background:0 0;border:0;border-radius:0}.player-search__field{border-radius:2px}.friends-grid,.friends-side-stack{gap:36px}.friends-card>header{padding:0 0 12px}.friends-card>header h2{font-size:19px}.friends-empty{border-top:1px solid var(--color-line);padding:22px 0}.friend-row,.friend-request,.game-invite{border-radius:0}.profile-header{border-bottom:1px solid var(--color-line);border-radius:0;padding:38px 0 24px}.profile-header:before{display:none}.profile-header__identity h1{font-family:inherit;font-size:clamp(34px,4vw,48px);font-weight:570}.profile-avatar-picker,.profile-performance,.profile-history{box-shadow:none;background:0 0;border:0;border-radius:0}.profile-avatar-picker{border-block:1px solid var(--color-line)}.profile-rating-band{background:var(--color-ink);border-radius:2px}.profile-rating-band:before{display:none}.profile-rating-band__eyebrow{letter-spacing:.04em;text-transform:none}.profile-rating-plot,.profile-performance .profile-metrics{border:1px solid var(--color-line);border-radius:0}.profile-performance .profile-metrics article{background:0 0}.profile-history{border-top:1px solid var(--color-line);padding-inline:0}.auth-page{align-items:start;min-height:calc(100svh - 170px);padding-top:clamp(38px,7vh,76px)}.auth-card{background:var(--color-surface-raised);border:1px solid var(--color-line);box-shadow:var(--shadow-soft);border-radius:10px;max-width:440px;padding:clamp(24px,4vw,34px)}.profile-guest{border:0;border-top:1px solid var(--color-line);box-shadow:none;background:0 0;border-radius:0;max-width:440px;padding:26px 0 42px}.auth-card__header{border-bottom:1px solid var(--color-line);gap:9px;padding-bottom:22px;display:grid}.auth-card__header h1{margin:0;font-size:clamp(32px,4vw,42px);line-height:1}.auth-card__header p{color:var(--color-text-muted);margin:0;font-size:14px;line-height:1.5}.input-wrap{background:var(--color-canvas);border-radius:7px;grid-template-columns:1fr;padding-inline:0}.input-wrap input,.input-wrap select{padding-left:14px}.auth-card .input-wrap input:focus-visible,.auth-card .input-wrap select:focus-visible{box-shadow:none;outline:none!important}.auth-social-button,.auth-submit{border-radius:7px}.legal-page{max-width:900px}.legal-page>header{max-width:none}.legal-page h1{font-size:clamp(36px,4vw,52px)}.legal-sections{gap:0}.legal-section{border:0;border-top:1px solid var(--color-line);box-shadow:none;background:0 0;border-radius:0;padding:26px 0 34px}.not-found-page{padding-block:72px}.modal-backdrop--result{-webkit-backdrop-filter:none;backdrop-filter:none;background:#141412a3}.result-modal{border:0;border-radius:4px;max-width:560px;box-shadow:0 20px 60px #00000038}.result-modal-header{border-bottom:1px solid var(--color-line);background:0 0;padding:28px 28px 20px}.result-modal-header h2{margin:0 0 6px;font-size:34px}.result-player-list{padding:12px 28px}.result-player-list>div{border-radius:0;padding-inline:0}.result-player-list>div.is-winner{box-shadow:inset 3px 0 var(--color-moss);background:0 0;padding-left:14px}.result-player-list b{color:var(--color-moss-strong);background:0 0;border-radius:0}.result-score-summary{border:0;border-block:1px solid var(--color-line);background:0 0;border-radius:0;margin-inline:28px}.hero-worlds-line{text-transform:none}.learn-course__intro h1{font-size:clamp(36px,4vw,52px)}@media (max-width:960px){.play-experience{grid-template-columns:1fr}.play-pace-column{border-left:0;border-top:1px solid var(--color-line);width:100%;max-width:620px;padding:28px 0 0}}@media (max-width:620px){.page-header,.friends-hero,.legal-page>header{margin-bottom:22px;padding:28px 0 18px}.page-header h1,.friends-hero h1,.legal-page h1{font-size:38px}.play-experience{gap:28px;padding:28px 0 64px}.play-board-column .size-selector button{min-height:44px}.play-pace-column .time-selector button{min-height:66px}.friends-hero{align-items:start}.friends-summary{border-left:0;border-top:1px solid var(--color-line);padding:12px 0 0}.friends-grid{gap:30px}.profile-header{padding-top:28px}.auth-page{padding-top:24px}.result-modal-header,.result-player-list,.result-secondary-actions{padding-inline:20px}.result-score-summary{margin-inline:20px}.result-primary{width:calc(100% - 40px);margin-inline:20px}}.hero-edge{display:block}.page-header,.friends-hero,.legal-page>header{border:0;border-bottom:1px solid var(--color-line);isolation:isolate;min-height:0;margin-bottom:clamp(30px,4vw,46px);padding:clamp(44px,6vw,72px) 0 clamp(24px,3vw,34px) 24px;position:relative;overflow:visible}.page-header:before,.friends-hero:before,.legal-page>header:before{background:linear-gradient(to bottom, var(--color-moss) 0 70%, var(--color-oxide) 70% 100%);content:"";border-radius:999px;width:3px;position:absolute;top:clamp(50px,6.5vw,76px);bottom:30px;left:0}.page-header:after,.friends-hero:after,.legal-page>header:after{content:"";opacity:.72;pointer-events:none;z-index:-1;background-color:#0000;background-image:linear-gradient(#5743291a 1px,#0000 1px),linear-gradient(90deg,#5743291a 1px,#0000 1px);background-position:0 0,0 0;background-repeat:repeat,repeat;background-size:22px 22px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;width:min(24vw,250px);height:66px;position:absolute;top:42px;right:0;-webkit-mask-image:linear-gradient(90deg,#0000,#000);mask-image:linear-gradient(90deg,#0000,#000)}.page-header h1,.friends-hero h1,.legal-page h1,.not-found-page h1,.auth-card h1,.profile-header__identity h1{font-family:var(--font-serif);letter-spacing:-.052em;font-size:clamp(43px,5vw,64px);font-weight:400;line-height:.96}.leaderboard-card{background:linear-gradient(135deg, #ffffffad, #faf7f0d6), var(--color-surface-raised);border:1px solid var(--color-line);border-radius:12px;padding:clamp(22px,3vw,34px);position:relative;overflow:hidden;box-shadow:0 18px 50px #3d2f1d0f}.leaderboard-card:before{background:linear-gradient(90deg, var(--color-moss) 0 62%, var(--color-oxide) 62% 72%, transparent 72%);content:"";height:3px;position:absolute;inset:0 0 auto}.leaderboard-title{color:var(--color-ink);font-family:var(--font-serif);letter-spacing:-.02em;border:0;padding:2px 0 5px;font-size:clamp(19px,2.2vw,25px)}.leaderboard-title strong{font-weight:600}.leaderboard-method{max-width:850px;margin:4px 0 22px}.leaderboard-viewer{background:color-mix(in srgb, var(--color-moss-soft) 56%, var(--color-surface-raised));border:1px solid color-mix(in srgb, var(--color-moss) 30%, var(--color-line));border-radius:9px;margin:0 0 18px;padding:13px 16px}.leaderboard-table{border-top:1px solid var(--color-line);margin-top:4px}.leaderboard-table th,.leaderboard-table td{padding-block:15px}.leaderboard-table tbody tr{transition:background var(--duration-fast) ease}.leaderboard-table tbody tr:hover{background:#4775630e}.leaderboard-snapshot{margin-top:16px}.friends-hero{background:0 0;border-radius:0;align-items:center}.friends-hero:after{display:block}.friends-summary{background:var(--color-ink);color:var(--color-surface-raised);border:0;border-radius:999px;grid-template-columns:auto auto;width:auto;height:auto;padding:10px 15px 10px 12px;display:grid;box-shadow:0 8px 24px #1c1b171a}.friends-summary strong{background:var(--color-surface-raised);color:var(--color-ink);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:15px;display:flex}.friends-summary span{max-width:none;margin:0 0 0 9px;font-size:11px}.player-search,.friends-card{border:1px solid var(--color-line);background:#fffdf9b3;border-radius:10px;box-shadow:0 12px 36px #3d2f1d0b}.player-search{border-top:3px solid var(--color-moss);padding:clamp(20px,2.8vw,28px)}.player-search__field{background:var(--color-canvas);border-radius:7px}.friends-card>header{border-bottom:1px solid var(--color-line);padding:18px 20px 15px}.friends-card>header h2{font-family:var(--font-serif);font-size:23px;font-weight:600}.friend-row,.friend-request,.game-invite{padding-inline:20px}.friend-row:hover{background:#4775630b}.friends-empty{border:0;padding-inline:20px}.result-modal{--result-accent:var(--color-moss);background:var(--color-surface-raised);border:1px solid #ffffffbd;border-radius:16px;max-width:570px;position:relative;overflow:hidden;box-shadow:0 28px 90px #00000042}.result-modal.is-loss{--result-accent:var(--color-oxide)}.result-modal.is-draw{--result-accent:var(--color-text-muted)}.result-modal:before{background:var(--result-accent);content:"";z-index:2;height:4px;position:absolute;inset:0 0 auto}.result-modal-header{background:radial-gradient(circle at 83% 44%, #47756314, transparent 25%), linear-gradient(135deg, var(--color-canvas), var(--color-surface-raised));border-bottom:1px solid var(--color-line);grid-template-columns:minmax(0,1fr) 70px;align-items:center;gap:24px;padding:34px 32px 28px;display:grid}.result-modal-header>div{width:100%;min-width:0}.result-modal-header:after{background:radial-gradient(circle at 35% 28%, #ffffff61, transparent 24%), var(--result-accent);content:"";border:7px solid #fffdf9d1;border-radius:50%;justify-self:end;width:62px;height:62px;box-shadow:0 9px 20px #251e1626}.result-modal-header h2{font-family:var(--font-serif);letter-spacing:-.045em;margin:0 0 10px;font-size:clamp(36px,6vw,48px);font-weight:600;line-height:.95}.result-modal-header p{color:var(--color-text-muted);max-width:360px;font-size:14px;line-height:1.45}.result-player-list{gap:0;padding:14px 32px 6px}.result-player-list>div{border-radius:0;grid-template-columns:42px minmax(0,1fr) auto;gap:14px;min-height:82px;padding:12px 4px}.result-player-list>div.is-winner{background:linear-gradient(90deg, color-mix(in srgb, var(--color-moss-soft) 70%, transparent), transparent 78%);box-shadow:inset 3px 0 var(--color-moss);padding-left:15px}.result-player-list .player-stone{width:38px;height:38px}.result-player-list strong{font-size:17px}.result-player-list small{font-size:11px}.result-player-list b{color:var(--color-moss-strong);background:0 0;border:1px solid #47756347;border-radius:999px;padding:5px 8px}.result-rating-change{color:var(--color-text-muted);margin:4px 32px 14px;font-size:13px}.result-score-summary{background:var(--color-canvas);border:1px solid var(--color-line);border-radius:8px;margin:8px 32px 16px}.result-score-summary span{background:0 0}.result-primary{border-radius:7px;width:calc(100% - 64px);margin:8px 32px 0}.result-secondary-actions{padding:12px 32px 26px}@media (max-width:760px){.hero-edge{display:none}.page-header,.friends-hero,.legal-page>header{padding:34px 0 21px 18px}.page-header:before,.friends-hero:before,.legal-page>header:before{top:39px;bottom:22px}.page-header h1,.friends-hero h1,.legal-page h1{font-size:43px}.leaderboard-card{border-radius:9px;padding:19px 15px}.friends-grid{gap:22px}}@media (max-width:620px){.friends-hero{align-items:center}.friends-hero:after{display:none}.friends-summary{display:grid}.friends-summary span{display:none}.friends-summary strong{color:#fff;background:0 0;width:24px;height:24px}.result-modal{border-radius:14px 14px 9px 9px}.result-modal-header{grid-template-columns:minmax(0,1fr) 50px;gap:14px;padding:26px 20px 21px}.result-modal-header:after{border-width:5px;width:46px;height:46px}.result-modal-header h2{font-size:36px}.result-modal-header p{font-size:13px}.result-player-list{padding:10px 20px 4px}.result-player-list>div{grid-template-columns:38px minmax(0,1fr) auto}.result-rating-change,.result-score-summary{margin-inline:20px}.result-primary{width:calc(100% - 40px);margin-inline:20px}.result-secondary-actions{padding-inline:20px}}.page-header,.friends-hero,.legal-page>header{isolation:auto;border:0;margin-bottom:clamp(30px,5vw,58px);padding:clamp(32px,5vw,62px) 0 0;overflow:visible}.page-header:before,.page-header:after,.friends-hero:before,.friends-hero:after,.legal-page>header:before,.legal-page>header:after{display:none}.content-hero h1,.page-header h1,.friends-hero h1,.legal-page h1,.not-found-page h1,.auth-card h1,.profile-header__identity h1{letter-spacing:-.055em;margin:0;font-family:inherit;font-size:clamp(44px,6vw,72px);font-weight:540;line-height:.98}@media (max-width:620px){.page-header,.friends-hero,.legal-page>header{margin-bottom:32px;padding-top:24px}.content-hero h1,.page-header h1,.friends-hero h1,.legal-page h1,.not-found-page h1,.auth-card h1,.profile-header__identity h1{font-size:clamp(40px,12vw,52px)}}.result-analysis-action{background:var(--color-moss-soft);color:var(--color-moss-strong);cursor:pointer;font:inherit;border:1px solid #315f4e38;border-radius:7px;justify-content:center;align-items:center;gap:8px;width:calc(100% - 64px);min-height:46px;margin:10px 32px 0;font-size:14px;font-weight:680;display:flex}.result-analysis-action:hover:not(:disabled){background:color-mix(in srgb, var(--color-moss-soft) 72%, white);border-color:var(--color-moss)}.result-analysis-action:disabled{cursor:wait;opacity:.55}.result-secondary-actions button{color:var(--color-text-muted);border:1px solid #0000;min-height:40px;font-size:13px}.result-secondary-actions button:hover:not(:disabled){background:var(--color-canvas-deep);border-color:var(--color-line);color:var(--color-ink)}.game-actions:not(.scoring-actions){gap:10px;padding-block:14px}.game-actions:not(.scoring-actions) button{min-height:48px;font-size:14px;font-weight:700}.game-actions .game-action-pass{color:var(--color-canvas);background:var(--color-ink)!important}.game-action-resign{color:var(--color-oxide-strong);background:0 0!important;border:1px solid #8f2c2847!important}.game-tools-panel{padding:0}.game-tools-disclosure>summary{color:var(--color-text-muted);cursor:pointer;min-height:44px;padding:12px 16px;font-size:13px;font-weight:650}.game-tools-disclosure[open]>summary{border-bottom:1px solid var(--color-line)}.game-tools-disclosure>.game-actions{margin:0;padding:12px 16px}.game-tools-disclosure>.final-score-summary{margin:0 16px 16px}.scoring-controls{background:var(--color-surface-raised);border-top:3px solid var(--color-moss);gap:12px;margin-top:14px;padding:18px 16px 14px;display:grid}.scoring-heading{gap:5px;display:grid}.scoring-heading>strong{color:var(--color-ink);font-size:18px}.scoring-heading>span{color:var(--color-text-muted);font-size:13px;line-height:1.45}.scoring-preview{gap:10px}.scoring-preview span{background:var(--color-canvas);border-color:var(--color-line);color:var(--color-ink);min-height:48px}.scoring-preview small{color:var(--color-text-muted);font-size:12px}.scoring-preview strong{font-size:18px}.scoring-confirmation-status{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.scoring-confirmation-status>span{color:var(--color-text-muted);gap:2px;font-size:11px;display:grid}.scoring-confirmation-status strong{color:var(--color-ink-soft);font-size:13px}.scoring-confirm-action{background:var(--color-moss-strong);color:#fff;cursor:pointer;font:inherit;border:0;border-radius:7px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:52px;padding:11px 14px;font-size:15px;font-weight:750;display:flex}.scoring-confirm-action:hover:not(:disabled){background:var(--color-moss);color:var(--color-ink)}.scoring-confirm-action:disabled{cursor:not-allowed;opacity:.55}.scoring-breakdown,.scoring-dispute{border:1px solid var(--color-line);color:var(--color-text-muted);border-radius:7px;margin:0;padding:0;font-size:12px}.scoring-breakdown summary,.scoring-dispute summary{color:var(--color-ink-soft);cursor:pointer;min-height:42px;margin:0;padding:11px 12px;font-size:13px;font-weight:680}.scoring-breakdown[open],.scoring-dispute[open]{padding:0 12px 12px}.scoring-breakdown[open] summary,.scoring-dispute[open] summary{margin-inline:-12px}.scoring-dispute-options{gap:7px;margin-top:2px;display:grid}.scoring-dispute-empty{background:var(--color-canvas);border:1px dashed var(--color-line);color:var(--color-text-subtle);border-radius:5px;padding:11px 12px}.scoring-dispute-option{background:var(--color-canvas);border:1px solid var(--color-line);color:var(--color-ink-soft);cursor:pointer;font:inherit;text-align:left;border-radius:5px;grid-template-columns:20px minmax(0,1fr);align-items:center;gap:9px;width:100%;min-height:44px;padding:8px 10px;display:grid}.scoring-dispute-option:hover:not(:disabled){border-color:var(--color-moss)}.scoring-dispute-option[aria-pressed=true]{background:color-mix(in srgb, var(--color-moss) 9%, var(--color-canvas));border-color:var(--color-moss-strong);color:var(--color-ink)}.scoring-dispute-option:disabled{cursor:not-allowed;opacity:.58}.scoring-dispute-option-indicator{border:1px solid var(--color-line-strong);border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;display:flex}.scoring-dispute-option[aria-pressed=true] .scoring-dispute-option-indicator{background:var(--color-moss-strong);border-color:var(--color-moss-strong);color:#fff}.scoring-actions{grid-template-columns:1fr;gap:8px;margin-top:9px;padding-bottom:0}.scoring-actions button{border:1px solid var(--color-line);color:var(--color-ink-soft);background:0 0;min-height:44px;font-size:12px}.dispute-selection-mark{border:clamp(2px, .45cqw, 4px) solid var(--color-moss-strong);pointer-events:none;z-index:4;border-radius:50%;position:absolute;inset:4%;box-shadow:0 0 0 2px #ffffffb8}.scoring-note{color:var(--color-text-subtle);margin:0;font-size:10px;line-height:1.45}.scoring-resign-action{color:var(--color-oxide-strong);cursor:pointer;font:inherit;background:0 0;border:0;place-self:center;align-items:center;gap:6px;min-height:40px;padding:8px 12px;font-size:12px;display:inline-flex}.profile-header{overflow:visible}.profile-header__actions .button{white-space:nowrap}.rating-label--hero{gap:9px}.rating-label--hero strong{overflow-wrap:normal;line-height:1}.rating-label--hero small{line-height:1.3}@media (max-width:620px){.result-analysis-action{width:calc(100% - 40px);margin-inline:20px}.scoring-confirmation-status{grid-template-columns:1fr}}html:has(.home-chapters){scroll-behavior:smooth;scroll-padding-top:150px}.home-wayfinder{-webkit-backdrop-filter:blur(18px)saturate(120%);backdrop-filter:blur(18px)saturate(120%);z-index:20;background:#f5f2ebe6;border-top:1px solid #17181614;border-bottom:1px solid #1718161a;position:sticky;top:82px}.home-wayfinder>div{grid-template-columns:repeat(5,1fr);max-width:1280px;margin:0 auto;padding-inline:clamp(24px,6vw,84px);display:grid}.home-wayfinder a{color:var(--color-text-muted);letter-spacing:.025em;min-height:64px;transition:background-color .22s var(--ease-standard), color .22s var(--ease-standard);border-left:1px solid #17181614;justify-content:center;align-items:center;gap:11px;padding:10px 14px;font-size:13px;font-weight:650;display:flex;position:relative}.home-wayfinder a:last-child{border-right:1px solid #17181614}.home-wayfinder a:after{background:var(--color-oxide);content:"";height:2px;transition:left .26s var(--ease-out), right .26s var(--ease-out);position:absolute;bottom:-1px;left:50%;right:50%}.home-wayfinder a:hover,.home-wayfinder a:focus-visible{color:var(--color-ink);background:#fffdf9b8}.home-wayfinder a:hover:after,.home-wayfinder a:focus-visible:after{left:20%;right:20%}.home-wayfinder a span,.chapter-kicker span{color:var(--color-oxide);font-variant-numeric:tabular-nums;letter-spacing:.12em;font-size:10px;font-weight:760}.home-chapters{background:var(--color-canvas-deep);padding:0}.home-chapters:before{display:none}.home-chapter{max-width:none;min-height:min(900px,92svh);margin:0;padding:0 clamp(24px,6vw,96px);scroll-margin-top:0;display:block;position:relative;overflow:hidden}.home-chapter:before{color:#17181609;content:attr(data-chapter);font-family:var(--font-serif);pointer-events:none;font-size:min(34vw,440px);line-height:.75;position:absolute;top:13%;right:-2vw}.home-chapter--learn,.home-chapter--review{color:#f5f2eb;background:radial-gradient(circle at 85% 18%,#6b938029,#0000 34%),#16201b}.home-chapter--learn:after,.home-chapter--review:after{content:"";pointer-events:none;background-image:linear-gradient(#f5f2eb09 1px,#0000 1px),linear-gradient(90deg,#f5f2eb09 1px,#0000 1px);background-size:42px 42px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000,#000 42%,#0000);mask-image:linear-gradient(90deg,#0000,#000 42%,#0000)}.home-chapter--puzzles{background:radial-gradient(circle at 8% 74%,#7b302c17,#0000 31%),#ebe4d8}.home-chapter-inner{min-height:inherit;z-index:1;grid-template-columns:minmax(400px,1.06fr) minmax(300px,.74fr);align-items:center;gap:clamp(58px,9vw,150px);max-width:1280px;margin:0 auto;padding:clamp(88px,10vw,148px) 0;display:grid;position:relative}.home-chapter--learn .home-chapter-inner,.home-chapter--review .home-chapter-inner{grid-template-columns:minmax(300px,.74fr) minmax(400px,1.06fr)}.chapter-copy{max-width:520px}.chapter-kicker{letter-spacing:.14em;text-transform:uppercase;align-items:center;gap:13px;font-weight:740;display:flex;color:var(--color-moss-strong)!important;margin:0 0 27px!important;font-size:12px!important;line-height:1.2!important}.chapter-kicker:before{content:"";opacity:.36;background:currentColor;order:2;width:42px;height:1px}.home-chapter--learn .chapter-kicker,.home-chapter--review .chapter-kicker{color:#a7c8b9!important}.home-chapter--learn .chapter-kicker span,.home-chapter--review .chapter-kicker span{color:#d39983}.chapter-copy h2,.platform-status-heading h2{font-family:var(--font-serif);letter-spacing:-.055em;text-wrap:balance;margin:0 0 26px;font-size:clamp(48px,5.6vw,78px);font-weight:450;line-height:.96}.chapter-copy>p:not(.chapter-kicker),.platform-status-heading>div>p:not(.chapter-kicker){max-width:460px;font-size:clamp(16px,1.3vw,19px);line-height:1.75}.home-chapter--learn .chapter-copy h2,.home-chapter--review .chapter-copy h2{color:#f5f2eb}.home-chapter--learn .chapter-copy>p:not(.chapter-kicker),.home-chapter--review .chapter-copy>p:not(.chapter-kicker){color:#f5f2ebb3}.chapter-link{border:0;align-items:center;gap:18px;min-height:52px;margin-top:34px;padding:0 2px;font-size:15px;font-weight:710;display:inline-flex;position:relative}.chapter-link:after{content:"";opacity:.38;transform-origin:0;height:1px;transition:transform .26s var(--ease-out);background:currentColor;position:absolute;bottom:3px;left:2px;right:2px}.chapter-link:hover:after,.chapter-link:focus-visible:after{transform:scaleX(.68)}.home-chapter--learn .chapter-link,.home-chapter--review .chapter-link{color:#f5f2eb}.go-board-scene{width:100%;max-width:660px;margin:0;position:relative}.go-board-frame{filter:drop-shadow(0 32px 40px #2a1e1029);transform-origin:50%;transition:transform .7s var(--ease-out);position:relative;transform:perspective(1400px)rotateX(1.5deg)rotate(-1deg)}.home-chapter--learn .go-board-frame,.home-chapter--review .go-board-frame{filter:drop-shadow(0 35px 46px #0000005c);transform:perspective(1400px)rotateX(1.5deg)rotate(1deg)}.go-board-scene:hover .go-board-frame{transform:perspective(1400px)rotateX(0)rotate(0)translateY(-5px)}.go-board-svg{width:100%;display:block;overflow:visible}.board-grid-line{stroke:#442a14b3;stroke-width:1.55px;vector-effect:non-scaling-stroke}.board-star{fill:#442a14c7}.board-coordinate{fill:#442a148f;font-family:var(--font-sans);letter-spacing:.08em;font-size:11px;font-weight:720}.board-last-move{fill:none;stroke:var(--color-oxide);stroke-width:3px}.board-move-label{font-family:var(--font-sans);font-size:17px;font-weight:750}.board-move-label--black{fill:#fff}.board-move-label--white{fill:#181a17}.board-stone--ghost{opacity:.78}.board-territory{fill:none;stroke-dasharray:4 8;stroke-width:2px}.board-territory--black{stroke:#1618156b}.board-territory--white{stroke:#ffffffad}.board-guide-line{fill:none;opacity:.65;stroke:var(--color-moss-strong);stroke-dasharray:7 7;stroke-width:3px}.board-liberty{fill:#e2bd80;stroke:var(--color-moss-strong);stroke-width:5px}.board-puzzle-zone{fill:#7b302c17;stroke:#7b302c75;stroke-dasharray:6 8;stroke-width:2px}.board-vital-point{fill:var(--color-oxide);stroke:#fff5e7;stroke-width:5px}.board-puzzle-arrow{fill:none;stroke:var(--color-oxide);stroke-linecap:round;stroke-width:4px}.board-review-path{fill:none;opacity:.76;stroke:#f6e8d0;stroke-dasharray:5 7;stroke-width:3px}.board-suggestion{fill:#477563d6;stroke:#eff7f1;stroke-width:5px}.board-scene-index{color:#1718161f;font-family:var(--font-serif);z-index:-1;font-size:clamp(78px,10vw,138px);line-height:1;position:absolute;top:-34px;left:-34px}.home-chapter--learn .board-scene-index,.home-chapter--review .board-scene-index{color:#f5f2eb14}.board-match-strip,.board-evaluation{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);font-variant-numeric:tabular-nums;background:#fffdf9e6;border:1px solid #1718161f;align-items:center;display:flex;position:absolute;box-shadow:0 16px 40px #25190d2e}.board-match-strip{border-radius:999px;justify-content:space-between;gap:20px;width:min(380px,76%);min-height:48px;padding:9px 18px;font-size:12px;font-weight:720;bottom:4%;left:50%;transform:translate(-50%)}.board-match-strip>span:nth-child(2){color:var(--color-text-subtle);letter-spacing:.13em;font-size:10px}.board-match-player{align-items:center;gap:8px;display:flex}.board-mini-stone{border-radius:50%;width:18px;height:18px;display:inline-block;box-shadow:0 2px 5px #0000003d}.board-mini-stone--black{background:radial-gradient(circle at 30% 22%,#646963,#080a08 67%)}.board-mini-stone--white{background:radial-gradient(circle at 30% 22%,#fff,#c8c1b6 72%)}.board-evaluation{color:var(--color-ink);border-radius:8px;gap:12px;width:62%;min-height:54px;padding:8px 14px;bottom:5%;left:5%}.board-evaluation span{color:var(--color-text-subtle);font-size:11px}.board-evaluation svg{width:100%;height:36px;overflow:visible}.board-evaluation path{fill:none;stroke:var(--color-moss-strong);stroke-width:3px}.board-evaluation strong{font-size:13px;font-weight:760}.platform-status{box-shadow:none;color:#f5f2eb;background:radial-gradient(circle at 78% 14%,#8ab3a024,#0000 30%),#101411;border-radius:0;max-width:none;margin:0;padding:clamp(88px,10vw,148px) clamp(24px,8vw,132px);scroll-margin-top:0}.platform-status-heading{justify-content:space-between;align-items:end;gap:40px;max-width:1180px;margin:0 auto;display:flex}.platform-status-heading h2{color:#f5f2eb;max-width:760px}.platform-status-heading>a{color:#f5f2eb;flex:none}.platform-metrics strong{color:#f5f2eb;font-family:var(--font-serif);font-size:clamp(36px,5vw,60px);font-weight:450}.platform-activity-status{max-width:1180px;margin-inline:auto}@supports (animation-timeline:view()){.home-chapter .go-board-scene{animation:linear both home-board-reveal;animation-timeline:view();animation-range:entry 4% cover 42%}.home-chapter .chapter-copy{animation-range:entry 4% cover 38%}}@keyframes home-board-reveal{0%{opacity:.28;transform:translateY(62px)scale(.94)}to{opacity:1;transform:translateY(0)scale(1)}}@media (max-width:1180px){.home-wayfinder{top:60px}.home-chapter-inner{gap:58px}}@media (max-width:840px){html:has(.home-chapters){scroll-padding-top:118px}.home-wayfinder>div{padding-inline:12px}.home-wayfinder a{gap:6px;min-height:56px;padding-inline:7px;font-size:12px}.home-wayfinder a span{display:none}.home-chapter,.home-chapter--learn,.home-chapter--puzzles,.home-chapter--review{min-height:0;padding-inline:24px}.home-chapter-inner,.home-chapter--learn .home-chapter-inner,.home-chapter--review .home-chapter-inner{grid-template-columns:minmax(0,1fr);gap:62px;padding:90px 0 104px}.home-chapter--learn .chapter-copy,.home-chapter--review .chapter-copy{order:2}.chapter-copy{max-width:640px}.go-board-scene{justify-self:center;max-width:620px}.platform-status-heading{flex-direction:column;align-items:flex-start}}@media (max-width:620px){html:has(.home-chapters){scroll-padding-top:110px}.home-wayfinder{scrollbar-width:none;overflow-x:auto}.home-wayfinder::-webkit-scrollbar{display:none}.home-wayfinder>div{min-width:max-content;padding:0 8px;display:flex}.home-wayfinder a{border-left:0;min-height:52px;padding:8px 15px}.home-wayfinder a:last-child{border-right:0}.home-chapter,.home-chapter--learn,.home-chapter--puzzles,.home-chapter--review{padding-inline:16px}.home-chapter-inner,.home-chapter--learn .home-chapter-inner,.home-chapter--review .home-chapter-inner{gap:42px;padding:70px 0 82px}.chapter-copy h2,.platform-status-heading h2{font-size:clamp(42px,13vw,58px)}.chapter-kicker{margin-bottom:20px!important}.go-board-scene{width:calc(100% + 6px)}.board-scene-index{font-size:72px;top:-16px;left:1px}.board-match-strip{gap:10px;width:82%;padding-inline:13px;bottom:1%}.board-evaluation{width:72%;bottom:2%;left:3%}.platform-status{padding:78px 20px}.platform-metrics{margin-top:50px}.platform-metrics article{min-height:104px}}@media (prefers-reduced-motion:reduce){html:has(.home-chapters){scroll-behavior:auto}.go-board-frame,.home-wayfinder a,.home-wayfinder a:after{transition:none}.home-chapter .go-board-scene{opacity:1;transform:none;animation:none!important}}.modal-backdrop--onboarding,.modal-backdrop--scoring-help{padding:20px}.beginner-onboarding-modal,.scoring-help-modal{background:var(--color-surface-raised);color:var(--color-ink);border:1px solid #ffffffb8;border-radius:16px;width:min(100%,580px);max-height:min(760px,100dvh - 40px);overflow:auto;box-shadow:0 28px 90px #00000047}.beginner-onboarding-header,.scoring-help-header{border-bottom:1px solid var(--color-line);padding:30px 32px 24px;position:relative}.beginner-onboarding-kicker,.scoring-help-header>span{color:var(--color-moss-strong);letter-spacing:.08em;text-transform:uppercase;margin-bottom:9px;font-size:11px;font-weight:750;display:block}.beginner-onboarding-header h2,.scoring-help-header h2{font-family:var(--font-serif);letter-spacing:-.035em;max-width:470px;margin:0;font-size:clamp(28px,5vw,38px);font-weight:600;line-height:1.04}.beginner-onboarding-header h2:focus{outline:none}.beginner-onboarding-header p,.scoring-help-header p{color:var(--color-text-muted);max-width:500px;margin:12px 0 0;font-size:14px;line-height:1.55}.beginner-onboarding-close{color:var(--color-text-muted);background:0 0;border:0;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:flex;position:absolute;top:18px;right:18px}.beginner-onboarding-close:hover{background:var(--color-canvas-deep);color:var(--color-ink)}.beginner-onboarding-body{padding:24px 32px 30px}.beginner-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.beginner-choice{background:var(--color-canvas);border:1px solid var(--color-line);color:var(--color-ink);font:inherit;text-align:left;border-radius:12px;justify-content:flex-start;align-items:center;gap:11px;min-height:68px;padding:16px 18px;font-weight:700;display:flex}.beginner-choice svg{color:var(--color-moss-strong);flex:none}.beginner-choice>span{gap:3px;display:grid}.beginner-choice small{color:var(--color-ink-muted);font-size:12px;font-weight:500;line-height:1.35}.beginner-choice:hover{border-color:var(--color-moss);box-shadow:inset 3px 0 var(--color-moss)}.beginner-rank-step,.beginner-tutorial-offer{gap:12px;display:grid}.beginner-rank-step label{gap:8px;font-size:13px;font-weight:700;display:grid}.beginner-rank-step select{appearance:none;background:var(--color-canvas);border:1px solid var(--color-line-strong);color:var(--color-ink);font:inherit;border-radius:10px;width:100%;min-height:48px;padding:0 14px}.beginner-primary-action{justify-content:center;width:100%;margin-top:4px}.beginner-text-action,.beginner-back-action,.scoring-help-hide,.scoring-help-reopen{color:var(--color-text-muted);font:inherit;text-underline-offset:3px;background:0 0;border:0;justify-content:center;align-items:center;gap:7px;min-height:36px;padding:6px 8px;font-size:13px;-webkit-text-decoration:underline #0000;text-decoration:underline #0000;display:inline-flex}.beginner-text-action:hover,.beginner-back-action:hover,.scoring-help-hide:hover,.scoring-help-reopen:hover{color:var(--color-ink);text-decoration-color:currentColor}.beginner-back-action{justify-self:start;padding-left:0}.beginner-tutorial-body{padding:22px 32px 30px}.beginner-tutorial-visual{background:var(--color-moss-soft);color:var(--color-moss-strong);border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin-bottom:18px;display:flex}.beginner-tutorial-note{background:var(--color-canvas);border-left:3px solid var(--color-moss);color:var(--color-ink);margin:0;padding:12px 14px;font-size:14px;font-weight:650;line-height:1.5}.beginner-tutorial-progress{gap:6px;margin-top:22px;display:flex}.beginner-tutorial-progress span{background:var(--color-line-strong);border-radius:4px;flex:1;height:4px}.beginner-tutorial-progress span[aria-current=step]{background:var(--color-moss)}.beginner-tutorial-step-label{color:var(--color-text-muted);margin-top:7px;font-size:11px;display:block}.beginner-tutorial-actions{justify-content:space-between;align-items:end;gap:14px;margin-top:20px;display:flex}.beginner-finish-actions{place-items:stretch stretch;gap:5px;display:grid}.beginner-finish-actions .button{white-space:nowrap}.scoring-help-header{padding-bottom:20px}.scoring-help-modal{width:min(100%,620px)}.scoring-help-steps{counter-reset:scoring-help;gap:0;margin:0;padding:8px 32px 4px;list-style:none;display:grid}.scoring-help-steps li{border-bottom:1px solid var(--color-line);grid-template-columns:34px minmax(0,1fr);align-items:start;gap:14px;padding:14px 0;display:grid}.scoring-help-steps li:last-child{border-bottom:0}.scoring-help-steps li>svg{color:var(--color-moss-strong);margin-top:2px}.scoring-help-steps strong{font-size:14px;display:block}.scoring-help-actions{gap:5px;padding:18px 32px 28px;display:grid}.scoring-help-actions .button{justify-content:center;width:100%}.scoring-heading>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.scoring-heading>div>strong{color:var(--color-ink);font-size:18px}.final-score-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.final-score-heading>strong{color:var(--color-ink)}.scoring-help-reopen{flex:none;min-height:28px;padding:2px 0;font-size:11px}@media (max-width:620px){.modal-backdrop--onboarding,.modal-backdrop--scoring-help{align-items:flex-end;padding:8px}.beginner-onboarding-modal,.scoring-help-modal{border-radius:14px 14px 9px 9px;max-height:calc(100dvh - 16px)}.beginner-onboarding-header,.scoring-help-header{padding:25px 20px 20px}.beginner-onboarding-header h2,.scoring-help-header h2{padding-right:22px;font-size:29px}.beginner-onboarding-body,.beginner-tutorial-body{padding:20px}.beginner-choice-grid{grid-template-columns:1fr}.beginner-choice{min-height:58px}.beginner-tutorial-visual{width:58px;height:58px;margin-bottom:14px}.beginner-tutorial-visual svg{width:30px;height:30px}.beginner-tutorial-actions{align-items:stretch}.beginner-finish-actions .button{white-space:normal}.scoring-help-steps{padding-inline:20px}.scoring-help-steps li{grid-template-columns:28px minmax(0,1fr);gap:10px;padding-block:11px}.scoring-help-actions{padding:14px 20px 22px}.scoring-heading>div{align-items:flex-start}}.home-chapters{background:linear-gradient(180deg, var(--color-canvas) 0, #f6f3ecf5 110px, transparent 360px), radial-gradient(circle at 8% 22%, #7b302c0e, transparent 28%), radial-gradient(circle at 91% 57%, #47756314, transparent 31%), linear-gradient(180deg, var(--color-canvas-deep), #f3efe7 58%, var(--color-canvas));isolation:isolate;padding:clamp(64px,8vw,120px) clamp(24px,6vw,92px) clamp(90px,11vw,154px);position:relative;overflow:hidden}.home-chapters:before{content:"";opacity:.42;pointer-events:none;transform-origin:top;z-index:-1;background-image:linear-gradient(#57432924 1px,#0000 1px),linear-gradient(90deg,#57432924 1px,#0000 1px);background-position:50%;background-size:54px 54px;height:310px;display:block;position:absolute;top:-100px;left:-4%;right:-4%;transform:perspective(900px)rotateX(62deg);-webkit-mask-image:linear-gradient(#0000,#000 32%,#0000 96%);mask-image:linear-gradient(#0000,#000 32%,#0000 96%)}.home-chapters:after{display:none}.home-chapter,.home-chapter--learn,.home-chapter--puzzles,.home-chapter--review{color:var(--color-ink);background:0 0;max-width:1180px;min-height:0;margin:0 auto;padding:clamp(76px,9vw,126px) 0;display:block;position:relative;overflow:visible}.home-chapter:before,.home-chapter--learn:after,.home-chapter--review:after{display:none}.home-chapter-inner,.home-chapter--learn .home-chapter-inner,.home-chapter--review .home-chapter-inner{grid-template-columns:minmax(380px,1.04fr) minmax(310px,.76fr);align-items:center;gap:clamp(52px,8vw,118px);min-height:0;padding:0;display:grid}.home-chapter--play:after{display:none}.home-chapter--play .go-board-scene{max-width:590px}.home-chapter--play .chapter-copy{padding-right:clamp(0px,2vw,24px)}.home-feature-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(22px,3vw,36px);max-width:1180px;margin:0 auto;padding:clamp(76px,9vw,126px) 0;display:grid;position:relative}.home-feature-pair:before{display:none}.home-feature-pair .home-chapter{background:#fffdf994;border:1px solid #2e2d271a;border-radius:26px;margin:0;padding:clamp(18px,2vw,28px);overflow:hidden;box-shadow:0 22px 80px #31261812}.home-feature-pair .home-chapter-inner,.home-feature-pair .home-chapter--learn .home-chapter-inner{grid-template-columns:minmax(0,1fr);gap:28px;display:grid}.home-feature-pair .go-board-scene{justify-self:center;max-width:430px}.home-feature-pair .go-board-frame{filter:drop-shadow(0 20px 28px #2a1e1024);transform:perspective(1400px)rotateX(1deg)rotate(-.5deg)}.home-feature-pair .home-chapter--puzzles .go-board-frame{transform:perspective(1400px)rotateX(1deg)rotate(.5deg)}.home-feature-pair .chapter-copy{max-width:none;padding:0 clamp(8px,2vw,22px) clamp(12px,2vw,24px)}.home-feature-pair .chapter-copy h2{color:var(--color-ink);margin-bottom:18px;font-size:clamp(38px,4vw,54px)}.home-feature-pair .chapter-copy>p:not(.chapter-kicker){color:var(--color-text-muted);font-size:16px;line-height:1.68}.home-feature-pair .chapter-kicker{color:var(--color-moss-strong)!important;margin-bottom:20px!important}.home-feature-pair .chapter-kicker span{color:var(--color-oxide)}.home-feature-pair .chapter-link{color:var(--color-ink);margin-top:24px}.home-feature-pair .board-scene-index{font-size:clamp(62px,7vw,92px);top:-12px;left:-8px}.home-chapter--review{color:#f5f2eb;background:radial-gradient(circle at 78% 16%,#8ab3a024,#0000 36%),#17201b;border-radius:30px;margin-block:clamp(72px,9vw,126px);padding:clamp(48px,7vw,92px);overflow:hidden;box-shadow:0 32px 100px #161d1929}.home-chapter--review .home-chapter-inner{grid-template-columns:minmax(310px,.78fr) minmax(380px,1.02fr)}.home-chapter--review .chapter-copy{max-width:470px}.home-chapter--review .chapter-copy h2{color:#f5f2eb;font-size:clamp(44px,5vw,68px)}.home-chapter--review .chapter-copy>p:not(.chapter-kicker){color:#f5f2ebb3}.home-chapter--review .chapter-kicker{color:#a7c8b9!important}.home-chapter--review .chapter-kicker span{color:#d39983}.home-chapter--review .chapter-link{color:#f5f2eb}.home-chapter--review .go-board-scene{max-width:540px}.chapter-copy h2,.platform-status-heading h2{font-size:clamp(46px,5.2vw,72px)}.go-board-frame,.home-chapter--learn .go-board-frame,.home-chapter--review .go-board-frame{transition:transform .85s var(--ease-out), filter .85s var(--ease-out)}.chapter-kicker:before{display:none}.chapter-kicker svg{color:var(--color-moss-strong);stroke-width:1.45px;flex:none;width:22px;height:22px}.home-chapter--review .chapter-kicker svg{color:#a7c8b9}.board-feature-link{color:inherit;border-radius:24px;justify-self:center;width:100%;max-width:590px;display:block;position:relative}.board-feature-link:focus-visible{outline:2px solid var(--color-moss-strong);outline-offset:9px}.board-feature-link .go-board-scene{max-width:none}.home-feature-pair .board-feature-link{max-width:430px}.home-chapter--review .board-feature-link{max-width:540px}.board-size-choices{flex-wrap:wrap;gap:12px;margin-top:34px;display:flex}.board-size-choices a{color:var(--color-ink);min-height:52px;transition:background-color .24s var(--ease-out), border-color .24s var(--ease-out), transform .32s var(--ease-out);background:#fffdf985;border:1px solid #2e2d2721;border-radius:14px;align-items:center;gap:10px;padding:9px 15px 9px 10px;display:inline-flex}.board-size-choices a:hover,.board-size-choices a:focus-visible{background:#fffdf9e6;border-color:#4775636b;transform:translateY(-2px)}.board-size-choices a:focus-visible{outline:2px solid var(--color-moss-strong);outline-offset:3px}.board-size-choices strong{font-variant-numeric:tabular-nums;letter-spacing:.02em;font-size:13px}.board-size-glyph{background-color:#d3a869;background-image:linear-gradient(#492e1780 1px,#0000 1px),linear-gradient(90deg,#492e1780 1px,#0000 1px);background-position:50%;background-size:8px 8px;border:1px solid #492e1747;border-radius:4px;width:30px;height:30px;display:inline-block;position:relative;box-shadow:0 3px 7px #3a251224}.board-size-glyph:after{content:"";background:radial-gradient(circle at 32% 25%,#59605a,#090a09 68%);border-radius:50%;width:7px;height:7px;position:absolute;top:11px;left:11px;box-shadow:0 2px 3px #2a180847}.chapter-symbol-link{background:var(--color-ink);border:1px solid var(--color-ink);color:var(--color-canvas);min-height:48px;transition:background-color .24s var(--ease-out), color .24s var(--ease-out), transform .32s var(--ease-out);border-radius:999px;flex:none;align-items:center;gap:10px;padding:0 19px;font-size:14px;font-weight:680;display:inline-flex}.chapter-symbol-link:hover,.chapter-symbol-link:focus-visible{color:var(--color-ink);background:0 0;transform:translateY(-2px)}.platform-status{color:var(--color-ink);background:#fffdf99e;border:1px solid #2e2d271a;border-radius:28px;max-width:1180px;margin:clamp(38px,5vw,72px) auto 0;padding:clamp(42px,6vw,76px);box-shadow:0 24px 90px #31261813}.platform-status-heading{max-width:none}.platform-status-heading h2{color:var(--color-ink)}.platform-status-heading>div>p:not(.chapter-kicker){color:var(--color-text-muted)}.platform-status-heading>a{color:var(--color-ink)}.platform-status-heading>.chapter-symbol-link{color:var(--color-canvas)}.platform-status-heading>.chapter-symbol-link:hover,.platform-status-heading>.chapter-symbol-link:focus-visible{color:var(--color-ink)}.platform-status .chapter-kicker{color:var(--color-moss-strong)!important}.platform-status .chapter-kicker span{color:var(--color-oxide)}.platform-metrics{border-color:#2e2d271f;max-width:none;margin:clamp(42px,5vw,64px) 0 24px}.platform-metrics article{border-color:#2e2d271f;min-height:138px;padding:26px}.platform-metrics span,.platform-activity-note{color:var(--color-text-muted)}.platform-metrics strong{color:var(--color-ink);font-size:clamp(32px,4vw,50px)}.home-feature-pair.is-reveal-ready .home-chapter{opacity:0;will-change:opacity, transform}.home-feature-pair.is-reveal-ready .home-chapter:first-child{transform:perspective(1200px)translate(-44px,40px)rotateY(-5deg)rotate(-.7deg)}.home-feature-pair.is-reveal-ready .home-chapter:last-child{transform:perspective(1200px)translate(44px,40px)rotateY(5deg)rotate(.7deg)}.home-feature-pair.is-reveal-ready.is-visible .home-chapter:first-child{animation:home-card-left .92s 40ms var(--ease-out) both}.home-feature-pair.is-reveal-ready.is-visible .home-chapter:last-child{animation:home-card-right .92s .13s var(--ease-out) both}@keyframes home-card-left{0%{opacity:0;transform:perspective(1200px)translate(-44px,40px)rotateY(-5deg)rotate(-.7deg)}to{opacity:1;transform:perspective(1200px)translate(0)rotateY(0)rotate(0)}}@keyframes home-card-right{0%{opacity:0;transform:perspective(1200px)translate(44px,40px)rotateY(5deg)rotate(.7deg)}to{opacity:1;transform:perspective(1200px)translate(0)rotateY(0)rotate(0)}}@media (max-width:920px){.home-chapter-inner,.home-chapter--learn .home-chapter-inner,.home-chapter--review .home-chapter-inner{grid-template-columns:minmax(0,1fr);gap:48px}.home-chapter--review .chapter-copy{order:2}.home-chapter--play .go-board-scene,.home-chapter--review .go-board-scene{justify-self:center;max-width:600px}.home-chapter--play .chapter-copy,.home-chapter--review .chapter-copy{max-width:660px}.home-feature-pair{gap:22px}}@media (max-width:720px){.home-chapters{padding:50px 16px 88px}.home-chapters:after{left:25px}.home-chapter,.home-chapter--learn,.home-chapter--puzzles,.home-chapter--review{padding:62px 0}.home-chapter--play{padding-top:78px}.home-feature-pair{grid-template-columns:minmax(0,1fr);padding:62px 0}.home-feature-pair:before{left:2px}.home-feature-pair .home-chapter{padding:18px}.home-feature-pair .go-board-scene{max-width:520px}.home-feature-pair .chapter-copy h2{font-size:clamp(38px,11vw,50px)}.home-chapter--review{border-radius:24px;margin-block:62px;padding:38px 22px 46px}.platform-status{border-radius:24px;margin-top:42px;padding:38px 22px}.platform-status-heading{flex-direction:column;align-items:flex-start}}@media (max-width:420px){.home-chapters{padding-inline:12px}.home-feature-pair .home-chapter{border-radius:20px;padding:12px}.home-feature-pair .chapter-copy{padding-inline:10px}.home-chapter--review,.platform-status{border-radius:20px}.home-chapter--review{padding-inline:17px}}@media (prefers-reduced-motion:reduce){.home-feature-pair .home-chapter{opacity:1;transform:none;animation:none!important}.board-size-choices a,.chapter-symbol-link{transition:none}}.home-chapters{overflow:hidden}.home-chapters:before{opacity:.54;background-image:linear-gradient(#57432929 1px,#0000 1px),linear-gradient(90deg,#57432929 1px,#0000 1px),radial-gradient(43% 27% at 50% 20%,#0000 62%,#4775631c 63%,#0000 64%),linear-gradient(#0000 2%,#f5f2ebbd 30%,#eee9dfeb 72%,#0000 100%);background-position:50%,50%,50%,50%;background-size:54px 54px,54px 54px,100% 100%,100% 100%;height:clamp(360px,31vw,500px);top:clamp(72px,8vw,118px);left:-4%;right:-4%;transform:perspective(1100px)rotateX(58deg);-webkit-mask-image:linear-gradient(#0000,#000 38% 76%,#0000);mask-image:linear-gradient(#0000,#000 38% 76%,#0000)}.home-chapters:after{content:"";opacity:.72;pointer-events:none;z-index:-1;background:radial-gradient(52% 25% at 50% -5%,#0000 64%,#47756321 65%,#0000 66%),radial-gradient(66% 33% at 50% -8%,#0000 67%,#5f635b1a 68%,#0000 69%),radial-gradient(82% 40% at 50% -12%,#0000 70%,#7b302c0e 71%,#0000 72%);height:clamp(260px,24vw,390px);display:block;position:absolute;top:clamp(50px,5vw,76px);left:-8%;right:-8%;-webkit-mask-image:linear-gradient(#000,#000 56%,#0000 100%);mask-image:linear-gradient(#000,#000 56%,#0000 100%)}@supports (animation-timeline:view()){.hero-stone-image{transform-origin:50% 58%;animation:linear both hero-stone-scroll;animation-timeline:view();animation-range:exit}.home-chapters:before{animation:linear both board-grid-arrive;animation-timeline:view();animation-range:entry cover 27%}.home-chapters:after{animation:linear both water-handoff-scroll;animation-timeline:view();animation-range:entry cover 22%}}@keyframes hero-stone-scroll{0%{opacity:1;transform:translateY(0)scale(1)}to{opacity:.84;transform:translateY(42px)scale(.965)}}@keyframes board-grid-arrive{0%{opacity:0;transform:perspective(1100px)rotateX(58deg)translateY(62px)scale(.97)}to{opacity:.54;transform:perspective(1100px)rotateX(58deg)translateY(0)scale(1)}}@keyframes water-handoff-scroll{0%{opacity:.16;transform:translateY(-18px)scale(.94)}to{opacity:.72;transform:translateY(8px)scale(1.03)}}@media (prefers-reduced-motion:reduce){.hero-stone-image,.home-chapters:before,.home-chapters:after{transform:none;animation:none!important}}.home-chapter--review:before{content:"";filter:blur(24px);pointer-events:none;z-index:-1;background:radial-gradient(#17201b33,#0000 70%);display:block;position:absolute;inset:-90px -7%}.learn-chapter.learn-course{padding-top:6px;display:block}.learn-map{max-width:820px;margin:0 auto}.learn-map__header{text-align:center;max-width:620px;margin:0 auto 26px}.learn-map__chapter{color:var(--color-moss-strong);letter-spacing:.12em;text-transform:uppercase;border:1px solid #2a4a3d33;border-radius:999px;margin:0 auto;padding:6px 10px;font-size:10px;font-weight:720;display:table}.learn-map__header h1{letter-spacing:-.055em;margin:18px 0 13px;font-size:clamp(42px,6vw,68px);line-height:.98}.learn-map__header>p{color:var(--color-text-muted);max-width:480px;margin:0 auto;font-size:15px;line-height:1.55}.learn-map__progress{justify-content:center;align-items:center;gap:11px;max-width:310px;margin:21px auto 0;display:flex}.learn-map__progress>span{background:#25302a1a;border-radius:99px;width:100%;height:5px;display:block;overflow:hidden}.learn-map__progress i{background:var(--color-moss-strong);border-radius:inherit;height:100%;transition:width .3s;display:block}.learn-map__progress strong{color:var(--color-text-subtle);flex:none;font-size:11px;font-weight:680}.learn-pathway{isolation:isolate;max-width:520px;margin:42px auto 16px;position:relative}.learn-pathway__line{z-index:-1;width:100%;height:708px;position:absolute;inset:0}.learn-pathway__line path{fill:none;stroke:#2d584638;stroke-dasharray:5 8;stroke-linecap:round;stroke-width:3px;vector-effect:non-scaling-stroke}.learn-pathway__item{width:100%;height:118px;position:relative}.learn-node{color:var(--color-ink);cursor:pointer;background:0 0;border:0;width:104px;height:104px;padding:0;position:absolute;top:7px;left:30%;transform:translate(-50%)}.learn-pathway__item:nth-of-type(2n) .learn-node{left:70%}.learn-node__tile{background:linear-gradient(145deg,#356c57,#25513f 76%);border:1px solid #133a2b75;border-radius:25px;justify-content:center;align-items:center;width:94px;height:94px;transition:filter .18s,transform .18s,box-shadow .18s;display:flex;position:absolute;top:1px;left:5px;box-shadow:0 8px #193c2f,0 15px 26px #1d342a33,inset 0 1px #ffffff2e}.learn-node:focus-visible{outline:0}.learn-node:focus-visible .learn-node__tile{outline-offset:5px;outline:3px solid #3069514d}.learn-pathway__item.is-current .learn-node__tile{background:linear-gradient(145deg,#77cba5,#3c9c73 76%);border-color:#256e4fb3;box-shadow:0 8px #286b50,0 0 0 8px #48a57c1f,0 18px 34px #22694c45,inset 0 1px #ffffff52}.learn-pathway__item.is-complete .learn-node__tile{background:linear-gradient(145deg,#315f4e,#1f4637 76%)}.learn-pathway__item.is-locked .learn-node{cursor:not-allowed}.learn-symbol{color:#f4ebd4;width:68px;height:68px;overflow:visible}.learn-symbol__grid{fill:none;opacity:.34;stroke:currentColor;stroke-linecap:round;stroke-width:1.7px}.learn-symbol__black{fill:#101713;stroke:#fff3;stroke-width:1px}.learn-symbol__white{fill:#f7f2e7;stroke:#173c2f;stroke-width:1.5px}.learn-symbol__mark{fill:#f4ce72;stroke:#1f4535b8;stroke-width:1px}.learn-symbol__target{fill:#f4ce722e;stroke:#f4ce72;stroke-dasharray:2 2;stroke-width:2px}.learn-symbol__territory{fill:#f4ce723d;stroke:#f4ce72;stroke-width:2px}.learn-pathway__item.is-locked .learn-symbol{color:#777a74;filter:grayscale();opacity:.48}.learn-node__status{border:2px solid var(--color-canvas);color:var(--color-moss-strong);z-index:2;background:#faf8f1;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex;position:absolute;top:-4px;right:-3px;box-shadow:0 3px 9px #17201b2e}.learn-pathway__item.is-locked .learn-node__status{color:#777a74}.learn-node__label{color:var(--color-ink);white-space:nowrap;background:#fffefa;border:1px solid #343b361f;border-radius:13px;min-width:105px;max-width:138px;padding:11px 13px;font-size:14px;font-weight:720;line-height:1.15;position:absolute;top:50%;left:calc(100% + 16px);transform:translateY(-50%);box-shadow:0 10px 24px #17201b24}.learn-node__label i{background:inherit;border-bottom:1px solid #343b361f;border-left:1px solid #343b361f;width:10px;height:10px;position:absolute;top:calc(50% - 5px);left:-6px;transform:rotate(45deg)}.learn-pathway__item:nth-of-type(2n) .learn-node__label{left:auto;right:calc(100% + 16px)}.learn-pathway__item:nth-of-type(2n) .learn-node__label i{border-top:1px solid #343b361f;border-bottom:0;border-left:0;border-right:1px solid #343b361f;left:auto;right:-6px}.learn-pathway__item.is-current .learn-node__label{animation:.32s ease-out both learn-label-arrive}@keyframes learn-label-arrive{0%{opacity:0;transform:translateY(-50%)translate(-5px)}to{opacity:1;transform:translateY(-50%)translate(0)}}.learn-pathway__item:nth-of-type(2n).is-current .learn-node__label{animation-name:learn-label-arrive-right}@keyframes learn-label-arrive-right{0%{opacity:0;transform:translateY(-50%)translate(5px)}to{opacity:1;transform:translateY(-50%)translate(0)}}.learn-map__reset{color:var(--color-text-subtle);cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;margin:18px auto 0;padding:8px;font-size:10px;display:flex}.learn-map__reset:hover{color:var(--color-ink)}.learn-lesson-focus{max-width:1040px;margin:0 auto}.learn-lesson-focus__topbar{border-bottom:1px solid var(--color-line);justify-content:space-between;align-items:center;margin-bottom:clamp(24px,4vw,42px);padding-bottom:13px;display:flex}.learn-lesson-focus__topbar>span{color:var(--color-text-subtle);letter-spacing:.08em;text-transform:uppercase;font-size:10px;font-weight:680}.learn-lesson-focus__intro{max-width:680px;margin-bottom:clamp(22px,3vw,34px)}.learn-lesson-focus__intro h1{color:var(--color-ink);letter-spacing:-.052em;margin:12px 0;font-size:clamp(38px,5vw,58px);font-weight:540;line-height:1}.learn-lesson-focus__intro>p{color:var(--color-text-muted);margin:0;font-size:clamp(15px,1.6vw,17px);line-height:1.55}.learn-lesson-focus__workspace{grid-template-columns:minmax(400px,1fr) minmax(260px,320px);align-items:start;gap:clamp(28px,5vw,58px);display:grid}.learn-lesson-focus__workspace .lesson-board{max-width:540px}.learn-lesson-focus__controls{border-top:1px solid var(--color-line);min-height:220px;padding-top:5px}.learn-lesson-focus__next{border-top:1px solid var(--color-line);margin-top:24px;padding-top:20px}.learn-lesson-focus__next .button{justify-content:center;width:100%}@media (max-width:760px){.learn-map__header{margin-bottom:18px}.learn-map__header h1{font-size:clamp(38px,11vw,50px)}.learn-pathway{margin-top:34px}.learn-lesson-focus__workspace{grid-template-columns:1fr}.learn-lesson-focus__controls{min-height:0}}@media (max-width:480px){.learn-path{padding-top:8px}.learn-map__header>p{display:none}.learn-lesson-focus__topbar{margin-bottom:22px}.learn-lesson-focus__intro h1{font-size:clamp(34px,10vw,42px)}.learn-lesson-focus__workspace .lesson-workspace__board-panel{padding:10px}.learn-lesson-focus__workspace .lesson-workspace__board-panel>header{margin:2px 2px 11px}}@media (prefers-reduced-motion:reduce){.learn-node__tile,.learn-node__label,.learn-map__progress i{transition:none!important;animation:none!important}}.learning-guide{max-width:1180px}.learn-practice-entry{border:1px solid var(--color-line);background:#fffefa;border-radius:18px;justify-content:space-between;align-items:center;gap:20px;max-width:720px;margin:6px auto 16px;padding:15px 16px 15px 20px;display:flex}.learn-practice-entry>div{gap:3px;display:grid}.learn-practice-entry strong{color:var(--color-ink);font-size:13px}.learn-practice-entry span{color:var(--color-text-muted);font-size:11px;line-height:1.45}.learn-practice-entry .button{flex:none;align-items:center;gap:6px;text-decoration:none;display:inline-flex}.learning-chapters{border:1px solid var(--color-line);background:#ffffff57;border-radius:18px;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;max-width:720px;margin:6px auto clamp(34px,5vw,58px);display:grid;overflow:hidden}.learning-chapters__item{border:0;border-right:1px solid var(--color-line);color:var(--color-text-muted);cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:10px;min-height:64px;padding:10px 14px;display:flex}.learning-chapters__item:last-child{border-right:0}.learning-chapters__item>span{background:#284b3c14;border-radius:50%;flex:0 0 28px;justify-content:center;align-items:center;width:28px;height:28px;font-size:11px;font-weight:750;display:flex}.learning-chapters__item strong{letter-spacing:-.01em;font-size:12px;font-weight:680}.learning-chapters__item:hover:not(:disabled),.learning-chapters__item.is-active{color:var(--color-ink);background:#fffefa}.learning-chapters__item.is-active{box-shadow:inset 0 -3px var(--color-moss-strong)}.learning-chapters__item.is-complete>span{background:var(--color-moss-strong);color:#fff}.learning-chapters__item:disabled{color:var(--color-text-subtle);cursor:not-allowed;opacity:.52}.learn-concept-preview{width:70px;height:70px;overflow:visible}.learn-concept-preview__line{fill:none;opacity:.32;stroke:#f4ebd4;stroke-linecap:round;stroke-width:1.35px}.learn-concept-preview__stone.is-black{fill:#111713;stroke:#ffffff3d;stroke-width:.8px}.learn-concept-preview__stone.is-white{fill:#f8f4e9;stroke:#173c2f;stroke-width:1px}.learn-pathway__item.is-locked .learn-concept-preview{filter:grayscale();opacity:.55}.learn-pathway__item.is-locked .learn-concept-preview__line{stroke:#777a74}.lesson-turn i.is-white{background:#fff;border:1px solid #1e201d47;box-shadow:0 1px 3px #14161424}.learn-chapter-complete__actions{align-items:center;gap:9px;display:flex}@media (max-width:620px){.learn-practice-entry{flex-direction:column;align-items:stretch}.learn-practice-entry .button{justify-content:center}.learning-chapters{border-radius:14px;margin-bottom:30px}.learning-chapters__item{flex-direction:column;gap:6px;min-height:72px;padding:8px 5px}.learning-chapters__item strong{text-align:center;font-size:10px;line-height:1.15}.learn-chapter-complete__actions{flex-direction:column;grid-column:1/-1;align-items:stretch}}.training-game{max-width:1180px;padding:clamp(18px,4vw,46px) 0 clamp(42px,7vw,84px)}.training-game__back{color:var(--color-text-muted);cursor:pointer;font:inherit;background:0 0;border:0;align-items:center;gap:6px;padding:0;font-size:11px;font-weight:700;text-decoration:none;display:inline-flex}.training-game__back:hover{color:var(--color-moss-strong)}.training-game__hero{text-align:center;max-width:690px;margin:clamp(28px,5vw,54px) auto 24px}.training-game__hero>span{color:var(--color-moss-strong);letter-spacing:.12em;text-transform:uppercase;font-size:10px;font-weight:800}.training-game__hero h1{color:var(--color-ink);font-family:var(--font-serif);letter-spacing:-.035em;margin:12px 0;font-size:clamp(34px,5vw,54px);font-weight:560;line-height:1.05}.training-game__hero p{color:var(--color-text-muted);max-width:600px;margin:0 auto;font-size:13px;line-height:1.65}.training-setup-card{border:1px solid var(--color-line);background:#fffefa;border-radius:22px;gap:22px;max-width:720px;margin:0 auto;padding:clamp(22px,4vw,38px);display:grid;box-shadow:0 18px 55px #293d3214}.training-setup-card h2,.training-settlement h2,.training-result h2{color:var(--color-ink);margin:0;font-size:18px}.training-setting{gap:9px;display:grid}.training-setting>label{color:var(--color-ink);font-size:11px;font-weight:780}.training-setting>small{color:var(--color-text-subtle);font-size:9px}.training-setting .size-selector{border:1px solid var(--color-line);background:#2a473a0f}.training-setting .size-selector button{color:var(--color-text-muted)}.training-setting .size-selector button.is-selected{background:var(--color-moss-strong);color:#fff}.training-time-selector{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.training-time-selector button{border:1px solid var(--color-line);color:var(--color-text-muted);cursor:pointer;text-align:left;background:#2a473a09;border-radius:11px;align-items:center;gap:10px;min-height:58px;padding:10px 12px;display:flex}.training-time-selector button:hover{background:#2a473a12}.training-time-selector button.is-selected{background:var(--color-moss-strong);border-color:var(--color-moss-strong);color:#fff}.training-time-selector button>span{gap:2px;display:grid}.training-time-selector strong{font-size:11px}.training-time-selector small{color:currentColor;opacity:.72;font-size:8px}.training-setting select{appearance:none;border:1px solid var(--color-line);color:var(--color-ink);font:inherit;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23576960' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right 14px center no-repeat;border-radius:10px;min-height:46px;padding:0 40px 0 13px;font-size:12px}.training-start{justify-content:center;min-height:48px}.training-privacy-note,.training-model-note{color:var(--color-text-subtle);text-align:center;margin:-8px 0 0;font-size:9px;line-height:1.5}.training-model-note{opacity:.75;margin-top:-16px}.training-board-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.training-board-header>span{color:var(--color-text-subtle);font-size:8px}.training-board-layout{grid-template-columns:minmax(0,1fr) minmax(270px,330px);align-items:start;gap:clamp(16px,3vw,28px);display:grid}.training-board-panel,.training-side-panel{border:1px solid var(--color-line);background:#fffefa;border-radius:18px}.training-board-panel{min-width:0;padding:clamp(12px,2vw,20px)}.training-board-panel .go-board-shell{max-width:760px;margin:0 auto}.training-turn-status{justify-content:space-between;align-items:center;max-width:760px;margin:0 auto 12px;display:flex}.training-turn-status strong{color:var(--color-ink);font-size:12px}.training-turn-status span{color:var(--color-text-subtle);font-size:9px}.training-side-panel{gap:10px;padding:14px;display:grid}.training-player{background:#2a473a09;border:1px solid #0000;border-radius:11px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:11px;display:grid}.training-player.is-active{background:#41695314;border-color:#4169532e}.training-player>div{gap:2px;display:grid}.training-player strong,.training-player b{color:var(--color-ink);font-size:11px}.training-player span{color:var(--color-text-subtle);font-size:8px}.training-player b{font-variant-numeric:tabular-nums}.training-stone{border-radius:50%;width:24px;height:24px;display:block}.training-stone--black{background:#17201b;box-shadow:inset 3px 3px 5px #ffffff1c,0 2px 4px #0000002e}.training-stone--white{background:#fff;border:1px solid #28342d33;box-shadow:0 2px 4px #0000001a}.training-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.training-actions button{border:1px solid var(--color-line);color:var(--color-text-muted);cursor:pointer;font:inherit;background:#2a473a0b;border-radius:9px;justify-content:center;align-items:center;gap:6px;min-height:40px;padding:8px;font-size:9px;font-weight:750;display:inline-flex}.training-actions button.is-primary{background:var(--color-moss-strong);border-color:var(--color-moss-strong);color:#fff}.training-actions button:disabled{cursor:not-allowed;opacity:.5}.training-error,.training-settlement__uncertain{color:#8d453b;background:#a5534414;border:1px solid #a5534433;border-radius:9px;margin:0;padding:9px 10px;font-size:9px;line-height:1.5}.training-settlement,.training-result{border-top:1px solid var(--color-line);gap:11px;margin-top:2px;padding-top:14px;display:grid}.training-settlement>p,.training-result>p{color:var(--color-text-muted);margin:0;font-size:9px;line-height:1.55}.training-score-preview{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;display:grid}.training-score-preview span{color:var(--color-text-subtle);background:#2a473a0d;border-radius:9px;gap:2px;padding:9px 10px;font-size:8px;display:grid}.training-score-preview strong{color:var(--color-ink);font-size:16px}.training-result>span{color:var(--color-moss-strong);letter-spacing:.08em;text-transform:uppercase;font-size:8px;font-weight:800}.training-result .button{justify-content:center;align-items:center;gap:6px;display:inline-flex}.training-side-note{color:var(--color-text-subtle);text-align:center;margin:2px 2px 0;font-size:8px;line-height:1.45}@media (max-width:860px){.training-board-layout{grid-template-columns:1fr}.training-side-panel{grid-template-columns:repeat(2,minmax(0,1fr))}.training-side-panel>:not(.training-player){grid-column:1/-1}}@media (max-width:620px){.training-time-selector,.training-side-panel{grid-template-columns:1fr}.training-side-panel>:not(.training-player){grid-column:auto}.training-board-header>span{display:none}}.leaderboard-card,.player-search,.friends-card{box-shadow:none;background:0 0;border:0;border-radius:0}.leaderboard-card{padding:0;overflow:visible}.leaderboard-card:before{display:none}.leaderboard-title{border-bottom:1px solid var(--color-line);letter-spacing:0;padding:0 0 12px;font-family:inherit;font-size:16px}.leaderboard-viewer{border:0;border-left:3px solid var(--color-moss);background:0 0;border-radius:0;padding:10px 14px}.leaderboard-table{border-top:1px solid var(--color-line);scrollbar-width:thin;overflow-x:auto}.leaderboard-table .rank{color:var(--color-text-subtle);font-variant-numeric:tabular-nums;min-width:3ch;display:inline-block}.leaderboard-table .rank--1,.leaderboard-table .rank--2,.leaderboard-table .rank--3{color:var(--color-ink);font-weight:720}.friends-summary{border:0;border-left:1px solid var(--color-line);box-shadow:none;color:var(--color-ink);background:0 0;border-radius:0;grid-template-columns:1fr;gap:2px;padding:4px 0 4px 22px;display:grid}.friends-summary strong{color:var(--color-ink);background:0 0;width:auto;height:auto;font-size:24px;display:block}.friends-summary span{color:var(--color-text-subtle);margin:0}.player-search{border-bottom:1px solid var(--color-line);padding:0 0 26px}.friends-card>header,.friend-row,.friend-request,.game-invite,.friends-empty{padding-inline:0}.learning-chapters{border:0;border-block:1px solid var(--color-line);background:0 0;border-radius:0}.learning-chapters__item:hover:not(:disabled),.learning-chapters__item.is-active{background:0 0}@media (max-width:620px){.leaderboard-card{border-radius:0;padding:0}.friends-summary{border-left:0;border-top:1px solid var(--color-line);padding:12px 0 0}.friends-summary span{display:block}.friends-summary strong{color:var(--color-ink);width:auto;height:auto}.learning-chapters{border-radius:0}}.app-main{min-height:100dvh}.app-content{min-height:calc(100dvh - 150px)}.home-hero{min-height:620px;max-height:920px}.home-chapters{padding-top:clamp(44px,5vw,72px);padding-bottom:clamp(78px,9vw,124px)}.home-chapter,.home-chapter--learn,.home-chapter--puzzles,.home-chapter--review{padding-block:clamp(62px,7vw,94px)}.home-chapter--play{padding-top:clamp(70px,8vw,108px)}.home-feature-pair{border-block:1px solid var(--color-line);gap:0;padding-block:0}.home-feature-pair .home-chapter{box-shadow:none;background:0 0;border:0;border-radius:0;padding:clamp(54px,6vw,78px) clamp(28px,4vw,52px)}.home-feature-pair .home-chapter:first-child{border-right:1px solid var(--color-line);padding-left:0}.home-feature-pair .home-chapter:last-child{padding-right:0}.chapter-facts{border-block:1px solid var(--color-line);grid-template-columns:repeat(4,minmax(0,1fr));margin:28px 0 0;display:grid}.chapter-facts div{gap:4px;padding:15px 14px 15px 0;display:grid}.chapter-facts dt{color:var(--color-text-subtle);letter-spacing:.08em;text-transform:uppercase;font-size:10px;font-weight:680}.chapter-facts dd{color:var(--color-ink);font-variant-numeric:tabular-nums;margin:0;font-size:15px;font-weight:650}.chapter-facts--compact{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-facts--inverse{border-color:#f5f2eb2e;grid-template-columns:repeat(3,minmax(0,1fr))}.chapter-facts--inverse dt{color:#f5f2eb7a}.chapter-facts--inverse dd{color:#f5f2eb}.chapter-progress{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;margin-top:27px;display:grid}.chapter-progress>span{background:var(--color-line);height:3px;display:block;overflow:hidden}.chapter-progress i{background:var(--color-moss-strong);height:100%;display:block}.chapter-progress strong{color:var(--color-text-subtle);font-variant-numeric:tabular-nums;font-size:11px}.progress-preview{border-block:1px solid var(--color-line);grid-template-columns:150px minmax(0,1fr) auto;align-items:end;gap:28px;margin-top:36px;padding:30px 0 22px;display:grid}.progress-preview>div{display:grid}.progress-preview>div span,.progress-preview>div small{color:var(--color-text-subtle);font-size:11px}.progress-preview>div strong{font-variant-numeric:tabular-nums;letter-spacing:-.04em;font-size:34px;font-weight:520}.progress-preview>div small{color:var(--color-moss-strong);font-weight:700}.progress-preview svg{width:100%;height:96px;overflow:visible}.progress-preview__area{fill:#47756317}.progress-preview__line{fill:none;stroke:var(--color-moss-strong);stroke-width:2px;vector-effect:non-scaling-stroke}.progress-preview__form{gap:7px;margin:0;padding:0;list-style:none;display:flex}.progress-preview__form li{border:1px solid var(--color-line);color:var(--color-text-subtle);border-radius:50%;justify-content:center;align-items:center;width:26px;height:26px;font-size:9px;font-weight:760;display:flex}.progress-preview__form .is-win{color:var(--color-moss-strong);border-color:#315f4e52}.progress-preview__form .is-loss{color:var(--color-oxide);border-color:#7b302c47}.play-experience{align-items:center;gap:clamp(48px,7vw,108px);min-height:calc(100dvh - 146px);padding-block:clamp(36px,5vh,66px)}.play-board-preview,.play-board-column .size-selector{width:min(100%,100dvh - 235px,660px)}.play-pace-column{max-width:520px}.matchmaking-summary{border-block:1px solid var(--color-line);grid-template-columns:.7fr 1.3fr;margin:24px 0 18px;display:grid}.matchmaking-summary>div{gap:3px;padding:16px 18px 16px 0;display:grid}.matchmaking-summary>div+div{border-left:1px solid var(--color-line);padding-left:18px}.matchmaking-summary span,.matchmaking-summary small{color:var(--color-text-subtle);letter-spacing:.06em;font-size:10px}.matchmaking-summary strong{font-variant-numeric:tabular-nums;font-size:18px;font-weight:650}.leaderboard-loading{border-top:1px solid var(--color-line)}.leaderboard-loading>div{border-bottom:1px solid var(--color-line);grid-template-columns:52px minmax(170px,1.5fr) repeat(2,minmax(70px,.5fr)) minmax(100px,.7fr);align-items:center;gap:22px;min-height:67px;display:grid}.leaderboard-loading i{color:var(--color-text-subtle);font-variant-numeric:tabular-nums;font-size:12px;font-style:normal}.leaderboard-loading>div b,.leaderboard-loading>div span,.leaderboard-loading>div strong{background:var(--color-line);width:72%;height:8px;animation:1.6s ease-in-out infinite alternate record-pulse;display:block}.leaderboard-loading b{width:54%;height:13px}.leaderboard-loading strong{justify-self:end;width:76%;height:14px}@keyframes record-pulse{0%{opacity:.48}to{opacity:.9}}.auth-page{grid-template-columns:minmax(0,1.1fr) minmax(360px,.72fr);align-items:center;gap:clamp(40px,7vw,104px);max-width:1120px;min-height:calc(100dvh - 190px);margin:0 auto;padding:36px 0 64px;display:grid}.auth-material{background:var(--color-canvas);align-self:stretch;min-height:520px;position:relative;overflow:hidden}.auth-material:after{background:linear-gradient(90deg, transparent 52%, var(--color-canvas));content:"";pointer-events:none;position:absolute;inset:0}.auth-material img{mix-blend-mode:multiply;object-fit:cover;object-position:48% 45%;width:100%;height:100%}.auth-card{border:0;border-left:1px solid var(--color-line);box-shadow:none;background:0 0;border-radius:0;width:100%;max-width:none;padding:12px 0 12px clamp(30px,4vw,52px)}.auth-card__header h1{font-size:clamp(40px,5vw,58px)}.auth-card .input-wrap{background:#fffdf9a3;border-radius:2px}.auth-card .auth-submit,.auth-social-button{border-radius:2px}.learn-map{max-width:920px}.learn-map__header{border-bottom:1px solid var(--color-line);text-align:left;max-width:none;margin:0 0 24px;padding:34px 0 28px}.learn-map__chapter{border:0;border-radius:0;margin:0;padding:0}.learn-map__header>p{max-width:620px;margin-left:0}.learn-map__progress{justify-content:flex-start;max-width:420px;margin-left:0}.learn-pathway{max-width:none;margin:0}.learn-pathway__line,.learn-node__label{display:none}.learn-pathway__item{border-bottom:1px solid var(--color-line);height:auto;min-height:126px}.learn-node,.learn-pathway__item:nth-of-type(2n) .learn-node{text-align:left;grid-template-columns:78px minmax(0,1fr) auto;align-items:center;gap:24px;width:100%;height:100%;min-height:126px;padding:18px 6px;display:grid;position:relative;top:auto;left:auto;transform:none}.learn-node__tile{background:var(--color-board);border:1px solid #57432938;border-radius:4px;width:72px;height:72px;position:relative;top:auto;left:auto;box-shadow:0 8px 18px #3f2b141c}.learn-node:hover .learn-node__tile,.learn-node:focus-visible .learn-node__tile{filter:none;transform:translateY(-1px);box-shadow:0 10px 22px #3f2b1426}.learn-pathway__item.is-current .learn-node__tile,.learn-pathway__item.is-complete .learn-node__tile{background:var(--color-board);box-shadow:inset 3px 0 var(--color-moss-strong), 0 8px 18px #3f2b141c;border-color:#315f4e73}.learn-pathway__item.is-locked .learn-node__tile{background:var(--color-canvas-deep);border-color:var(--color-line);box-shadow:none}.learn-symbol,.learn-concept-preview{width:58px;height:58px}.learn-node__copy{gap:6px;display:grid}.learn-node__copy small{color:var(--color-text-subtle);letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:680}.learn-node__copy strong{letter-spacing:-.02em;font-size:clamp(18px,2vw,23px);font-weight:590}.learn-node__status{box-shadow:none;position:static}.learn-map__reset{margin-left:0}@media (max-width:920px){.home-feature-pair{grid-template-columns:1fr}.home-feature-pair .home-chapter:first-child{border-bottom:1px solid var(--color-line);border-right:0;padding-right:0}.home-feature-pair .home-chapter:last-child{padding-left:0}.progress-preview{grid-template-columns:120px minmax(0,1fr)}.progress-preview__form{grid-column:1/-1}.auth-page{grid-template-columns:minmax(0,.9fr) minmax(340px,1.1fr);gap:28px}}@media (max-width:760px){.home-hero{min-height:600px;max-height:none}.chapter-facts{grid-template-columns:repeat(2,minmax(0,1fr))}.home-feature-pair .home-chapter,.home-feature-pair .home-chapter:first-child,.home-feature-pair .home-chapter:last-child{padding-inline:0}.progress-preview{grid-template-columns:1fr}.progress-preview__form{grid-column:auto}.auth-page{min-height:0;padding:24px 0 56px;display:block}.auth-material{height:210px;min-height:0}.auth-material:after{background:linear-gradient(180deg, transparent 46%, var(--color-canvas))}.auth-card{border-left:0;border-top:1px solid var(--color-line);max-width:520px;margin:-12px auto 0;padding:28px 0 0;position:relative}.leaderboard-loading>div{grid-template-columns:40px minmax(120px,1fr) minmax(76px,.5fr);gap:12px}.leaderboard-loading>div span{display:none}}@media (max-width:620px){.app-content{min-height:calc(100dvh - 132px)}.home-chapters{padding-top:34px}.chapter-facts div{padding-right:8px}.progress-preview svg{height:78px}.play-experience{align-items:stretch;min-height:0;padding-bottom:54px}.matchmaking-summary{margin-top:18px}.learn-map__header{padding-top:22px}.learn-node,.learn-pathway__item:nth-of-type(2n) .learn-node{grid-template-columns:64px minmax(0,1fr) auto;gap:16px;min-height:108px;padding-inline:0}.learn-node__tile{width:60px;height:60px}.learn-symbol,.learn-concept-preview{width:48px;height:48px}}@media (prefers-reduced-motion:reduce){.leaderboard-loading>div b,.leaderboard-loading>div span,.leaderboard-loading>div strong{animation:none}}@supports (animation-timeline:view()){.hero-stone-image,.home-chapters:before,.home-chapters:after{animation:none;transform:none}}html,body{max-width:100%;overflow-x:clip}.sidebar-login,.sidebar-signup{white-space:nowrap;justify-content:center;align-items:center;padding:11px 18px;line-height:1.2;display:inline-flex}.app-content:has(.auth-page){padding-top:18px;padding-bottom:28px}.auth-page{align-items:center;gap:clamp(30px,5vw,76px);min-height:calc(100dvh - 142px);padding:12px 0 28px}.auth-material{height:min(610px,100dvh - 178px);min-height:430px}.auth-material:after{background:linear-gradient(90deg, transparent 68%, var(--color-canvas))}.auth-material img{object-fit:contain;object-position:center}.auth-card{padding-block:8px}.auth-card__header{gap:7px;padding-bottom:15px}.auth-card__header h1{font-size:clamp(34px,4vw,50px);line-height:.98}.auth-form{margin-top:15px}.auth-form label{gap:5px}.auth-card .auth-submit,.auth-social-button{min-height:46px}.auth-divider{margin-block:13px}.auth-switch{margin-top:14px}@media (max-width:760px){.app-content:has(.auth-page){padding-top:10px}.auth-page{padding-top:0}.auth-material{width:calc(100% + 32px);height:clamp(132px,24dvh,190px);min-height:0;margin-inline:-16px}.auth-material:after{background:linear-gradient(180deg, transparent 62%, var(--color-canvas))}.auth-card{margin-top:-8px;padding-top:20px}.auth-card__header h1{font-size:clamp(32px,10vw,43px)}}@media (max-height:720px) and (min-width:761px){.auth-material{height:calc(100dvh - 142px);min-height:360px}.auth-card__header h1{font-size:38px}.auth-card__header p{font-size:13px}.auth-form{margin-top:12px}}.home-feature-list{border-block:1px solid var(--color-line);max-width:1180px;margin:clamp(26px,4vw,58px) auto}.home-chapters:before,.home-chapters:after{display:none}.home-feature-link{color:var(--color-ink);grid-template-columns:42px minmax(0,1fr) auto;align-items:center;gap:clamp(16px,3vw,30px);min-height:126px;padding:24px 4px;text-decoration:none;display:grid}.home-feature-link+.home-feature-link{border-top:1px solid var(--color-line)}.home-feature-icon{border:1px solid var(--color-line);color:var(--color-moss-strong);border-radius:50%;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.home-feature-copy{gap:5px;display:grid}.home-feature-copy small{color:var(--color-moss-strong);letter-spacing:.08em;text-transform:uppercase;font-size:10px;font-weight:720}.home-feature-copy strong{letter-spacing:-.035em;font-size:clamp(22px,3vw,34px);font-weight:560}.home-feature-copy>span{color:var(--color-text-muted);max-width:650px;font-size:14px;line-height:1.5}.home-feature-link>svg{color:var(--color-text-subtle);transition:transform .16s}.home-feature-link:hover .home-feature-copy strong{color:var(--color-moss-strong)}.home-feature-link:hover>svg{transform:translate(4px)}@media (max-width:620px){.home-feature-list{margin-block:18px 38px}.home-feature-link{grid-template-columns:36px minmax(0,1fr) auto;gap:13px;min-height:108px;padding-block:18px}.home-feature-icon{width:36px;height:36px}.home-feature-copy strong{font-size:21px}.home-feature-copy>span{font-size:12px}}.beginner-onboarding-modal{width:min(100%,640px)}.beginner-onboarding-header{padding-block:24px 18px}.beginner-onboarding-header h2{font-family:inherit;font-size:clamp(25px,4vw,34px);font-weight:610;line-height:1.08}.beginner-onboarding-header p{color:var(--color-ink-soft);font-size:15px}.beginner-tutorial-body{padding-block:18px 22px}.beginner-tutorial-example{border-block:1px solid var(--color-line);grid-template-columns:126px minmax(0,1fr);align-items:center;gap:22px;padding:15px 0;display:grid}.beginner-tutorial-board{width:118px;height:118px;display:block}.beginner-tutorial-board__wood{fill:#d6a756;stroke:#53371b3d}.beginner-tutorial-board__line{fill:none;stroke:#3d2b19b3;stroke-width:1px}.beginner-tutorial-board__stone.is-black{fill:#151714;stroke:#050505}.beginner-tutorial-board__stone.is-white{fill:#fffdf7;stroke:#2c2a2473}.beginner-tutorial-board__target{fill:none;stroke:var(--color-oxide);stroke-width:2px}.beginner-tutorial-note{color:var(--color-ink);background:0 0;border-left:0;padding:0;font-size:15px;font-weight:650}.beginner-rank-track{grid-template-columns:repeat(4,1fr);gap:5px;width:126px;display:grid}.beginner-rank-track span{border-bottom:2px solid var(--color-line-strong);color:var(--color-text-muted);justify-content:center;align-items:center;padding-bottom:7px;font-size:11px;font-weight:700;display:flex}.beginner-rank-track span.is-current{border-color:var(--color-moss-strong);color:var(--color-moss-strong)}.learn-lesson-focus__intro{margin-bottom:clamp(16px,2vw,24px)}.learn-lesson-focus__intro h1{margin-block:8px 10px;font-size:clamp(31px,4vw,45px);line-height:1.06}.learn-lesson-focus__intro>p{color:var(--color-ink-soft);font-size:clamp(16px,1.7vw,18px)}.learn-lesson-focus__finish-actions{gap:9px;display:grid}.learn-lesson-focus__finish-actions .button{justify-content:center;width:100%}.learn-practice-entry{border:0;border-block:1px solid var(--color-line);background:0 0;border-radius:0;max-width:920px;padding:14px 0}.learn-practice-entry .button{border-color:var(--color-line-strong);color:var(--color-ink);background:0 0}@media (min-width:761px){.learn-lesson-focus__workspace .lesson-board{max-width:min(520px,100dvh - 325px)}.training-board-panel .go-board-shell{max-width:min(720px,100dvh - 180px)}}@media (max-width:620px){.beginner-onboarding-header h2{font-size:26px}.beginner-onboarding-header p{font-size:14px}.beginner-tutorial-example{grid-template-columns:88px minmax(0,1fr);gap:14px}.beginner-tutorial-board{width:84px;height:84px}.beginner-rank-track{grid-template-columns:repeat(2,1fr);width:88px}.beginner-tutorial-note{font-size:13px}.beginner-tutorial-progress{margin-top:14px}.learn-map__header>p{font-size:14px;line-height:1.5;display:block}.learn-lesson-focus__intro h1{font-size:clamp(29px,9vw,38px)}.learn-lesson-focus__intro>p{font-size:15px}}html:not([data-mobile-app=true]) .go-board[data-preview-color=black] .intersection[aria-disabled=false]:hover:before,.go-board[data-preview-color=black] .intersection:focus-visible:before{background:radial-gradient(circle at 31% 25%,#646464c2,#030403c7 72%);border:1px solid #00000073}html:not([data-mobile-app=true]) .go-board[data-preview-color=white] .intersection[aria-disabled=false]:hover:before,.go-board[data-preview-color=white] .intersection:focus-visible:before{background:radial-gradient(circle at 31% 23%,#ffffffe6,#cdcac2d1);border:1px solid #5b4b3847}.scoring-heading>div>strong{font-size:20px;line-height:1.2}.scoring-heading>span{font-size:12px}.scoring-help-header h2{letter-spacing:-.035em;margin:0;font-family:inherit;font-size:clamp(27px,4vw,36px);font-weight:620;line-height:1.08}.scoring-help-steps{gap:0;padding:6px 32px 2px;display:grid}.scoring-help-steps section,.scoring-help-steps aside{border-bottom:1px solid var(--color-line);padding:15px 0}.scoring-help-steps aside{border-bottom:0}.scoring-help-steps strong{color:var(--color-ink);font-size:14px;display:block}.scoring-help-steps p{color:var(--color-text-muted);margin:5px 0 0;font-size:13px;line-height:1.5}.game-connection-notice{border:0;border-bottom:1px solid var(--color-line);color:var(--color-text-muted);background:0 0;border-radius:0;padding:8px 2px}.game-connection-notice>svg{color:var(--color-text-subtle)}.game-connection-notice strong{color:var(--color-ink-soft);font-weight:650}.game-connection[data-state=reconnecting],.game-connection[data-state=delayed]{color:var(--color-text-muted)}.profile-header{padding-inline:clamp(18px,3vw,34px)}.profile-header__actions{padding:0}.profile-header__actions .button{margin:0}@media (max-height:820px) and (min-width:1121px){.focused-game-layout{gap:16px;padding-block:12px}.focused-game-side{gap:7px}.game-panel{padding-block:10px}.game-panel-player{padding-block:2px}.scoring-controls{gap:8px;margin-top:7px;padding-block:12px 9px}.scoring-preview span{min-height:42px}.scoring-confirm-action{min-height:46px}.scoring-breakdown summary,.scoring-dispute summary{min-height:38px;padding-block:9px}}.learn-experience{max-width:960px;margin-inline:auto;padding-bottom:130px}.learn-overview__header{border-bottom:1px solid var(--color-line);grid-template-columns:minmax(0,1fr) minmax(220px,330px);gap:18px 28px;padding:26px 0 30px;display:grid}.learn-overview__header h1{letter-spacing:-.045em;margin:0 0 8px;font-size:clamp(38px,5vw,58px);font-weight:560;line-height:1}.learn-overview__header small{color:var(--color-moss-strong);margin-bottom:8px;font-size:11px;display:block}.learn-stage-back{margin-top:10px}.learn-stage-entries{margin-top:24px}.learn-stage-entry{border:0;border-bottom:1px solid var(--color-line);color:var(--color-ink);text-align:left;background:0 0;grid-template-columns:44px 1fr auto;align-items:center;gap:18px;width:100%;padding:24px 0;display:grid}.learn-stage-entry>span:nth-child(2){gap:6px;display:grid}.learn-stage-entry strong{font-size:20px;font-weight:600}.learn-stage-entry small{color:var(--color-text-muted);font-size:11px}.learn-stage-entry__number{border:1px solid var(--color-line-strong);border-radius:50%;justify-content:center;align-items:center;height:44px;display:flex}.learn-stage-entry.is-current .learn-stage-entry__number{background:var(--color-moss-strong);border-color:var(--color-moss-strong);color:#fff}.learn-stage-entry:disabled{color:var(--color-text-subtle);opacity:.6}.learn-stage-entry:focus-visible{outline:2px solid var(--color-moss-strong);outline-offset:4px}.learn-overview__header p{color:var(--color-text-muted);margin:0;font-size:13px}.learn-next-dock{background:var(--color-canvas);border-top:1px solid var(--color-line);width:calc(100% - 48px);max-width:720px;padding:12px 0 max(12px, env(safe-area-inset-bottom));z-index:5;justify-content:space-between;align-items:center;gap:16px;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.learn-next-dock__lesson{gap:4px;min-width:0;display:grid}.learn-next-dock__lesson small{color:var(--color-text-subtle);letter-spacing:.1em;text-transform:uppercase;font-size:9px;font-weight:760}.learn-next-dock__lesson strong{text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:620;overflow:hidden}.learn-next-dock__button{flex:none;justify-content:center;min-width:min(54%,270px);min-height:54px}.learn-overview__meter{background:var(--color-line);align-self:end;height:3px;overflow:hidden}.learn-overview__meter span,.learn-player__progress span{background:var(--color-moss-strong);height:100%;transition:width .18s;display:block}.learn-route{max-width:360px;margin:36px auto 0}.puzzle-target-mark{pointer-events:none;z-index:2;border:1.5px solid;border-radius:50%;width:24%;height:24%;position:absolute;top:38%;left:38%}.puzzle-target-mark--black{border-color:#ffffffbf}.puzzle-target-mark--white{border-color:#000000a6}.learn-path-stage{padding-bottom:24px}.learn-path-stage__header{border-top:1px solid var(--color-line);gap:8px;padding:24px 12px 32px;display:grid}.learn-path-stage__header small{color:var(--color-moss-strong);letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:8px;font-size:11px;display:flex}.learn-path-stage__header h2{margin:0;font-size:22px;line-height:1.2}.learn-path-stage__header>span{color:var(--color-text-muted);font-size:12px}.learn-path-stage.is-locked .learn-path-stage__header{color:var(--color-text-muted);border-top-style:dashed}.learn-path-stage.is-locked .learn-path-stage__header small{color:var(--color-text-muted)}.learn-stage{position:relative}.learn-route-track{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.learn-route-track path{fill:none;stroke:var(--color-line-strong);stroke-width:3px}.learn-stage__nodes{margin:0;padding:0;list-style:none;position:relative}.learn-stage__nodes li{height:140px;position:relative}.learn-route-stop-1{transform:translate(-16.6667%)}.learn-route-stop-3{transform:translate(16.6667%)}.learn-route-node{color:var(--color-ink);text-align:center;background:0 0;border:0;place-items:center;gap:8px;width:min(66.6667%,230px);margin-inline:auto;padding:0;display:grid;position:relative}.learn-route-node:hover:not(:disabled) .learn-route-node__copy strong,.learn-route-node:focus-visible .learn-route-node__copy strong{color:var(--color-moss-strong)}.learn-route-node:disabled{cursor:default}.learn-route-node__mark{background:var(--color-canvas);border:2px solid var(--color-line-strong);color:var(--color-text-subtle);z-index:1;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;display:flex;position:relative}.learn-route-node__copy{background:var(--color-canvas);overflow-wrap:anywhere;gap:4px;min-width:0;padding:2px 7px;display:grid}.learn-route-node__copy strong{font-size:15px;font-weight:610;transition:color .13s}.learn-route-node__copy small{color:var(--color-text-subtle);font-size:10px}.learn-route-node>svg{color:var(--color-text-subtle)}.learn-stage__nodes li.is-current .learn-route-node__mark{outline:3px solid var(--color-moss-strong);outline-offset:5px}.learn-stage__nodes li.is-current .learn-route-node__mark,.learn-stage__nodes li.is-complete .learn-route-node__mark{background:var(--color-moss-strong);border-color:var(--color-moss-strong);color:#fff}.learn-stage__nodes li.is-challenge .learn-route-node__mark{border-radius:12px}.learn-route-node:focus-visible{outline:2px solid var(--color-moss-strong);outline-offset:7px}.learn-stage__nodes li.is-locked .learn-route-node{color:var(--color-text-subtle);opacity:.58}.learn-future{border-block:1px solid var(--color-line);max-width:720px;margin-top:50px;padding:22px 0}.learn-future strong{color:var(--color-text-subtle);letter-spacing:.1em;text-transform:uppercase;font-size:10px}.learn-future p{color:var(--color-ink-soft);margin:8px 0 3px;font-size:14px}.learn-future span{color:var(--color-text-subtle);font-size:11px}.learn-player{max-width:920px;margin-inline:auto}.learn-player__topbar{border-bottom:1px solid var(--color-line);justify-content:space-between;align-items:center;min-height:54px;display:flex}.learn-player__topbar>span{color:var(--color-text-subtle);font-variant-numeric:tabular-nums;font-size:11px}.learn-text-button{color:var(--color-text-muted);background:0 0;border:0;align-items:center;gap:6px;padding:8px 0;font-size:12px;display:inline-flex}.learn-text-button:hover{color:var(--color-ink)}.learn-player__progress{background:var(--color-line);height:2px}.learn-player__heading{max-width:680px;padding:30px 0 22px}.learn-player__heading small{color:var(--color-moss-strong);letter-spacing:.11em;text-transform:uppercase;font-size:9px;font-weight:760}.learn-player__heading h1{letter-spacing:-.04em;margin:7px 0 10px;font-size:clamp(30px,4vw,44px);font-weight:570;line-height:1.05}.learn-player__heading p{color:var(--color-ink-soft);margin:0;font-size:16px;line-height:1.5}.learn-player__heading>strong{margin-top:9px;font-size:16px;font-weight:680;display:block}.learn-player__step-mode{color:var(--color-text-muted);flex-wrap:wrap;align-items:center;gap:4px 12px;margin:14px 0 12px;font-size:12px;line-height:1.5;display:flex}.learn-player__step-mode>span:first-child{align-items:center;gap:6px;display:inline-flex}.learn-player__step-mode strong{font-weight:680}.learn-player__step-mode[data-mode=action]>span:first-child,.learn-player__step-mode[data-mode=solved]>span:first-child,.learn-player__step-mode[data-mode=game]>span:first-child{color:var(--color-moss-strong)}.learn-teacher{align-items:flex-start;gap:12px;min-width:0;display:flex}.learn-teacher__avatar{flex:0 0 48px;width:48px;height:54px;margin-top:10px}.learn-teacher__speech{background:var(--color-surface-raised);border:1px solid var(--color-line-strong);border-radius:12px;flex:1;min-width:0;padding:13px 15px;position:relative}.learn-teacher__speech:before{background:var(--color-surface-raised);border-bottom:1px solid var(--color-line-strong);border-left:1px solid var(--color-line-strong);content:"";width:9px;height:9px;position:absolute;top:26px;left:-6px;transform:rotate(45deg)}.learn-teacher__speech p{color:var(--color-ink-soft);overflow-wrap:anywhere;margin:0;font-size:14px;line-height:1.5}.learn-teacher__task{margin-top:7px;font-size:14px;font-weight:680;line-height:1.5;display:block}.learn-teacher__speech .learn-player__feedback{border:0;padding:0}.learn-teacher__speech .learn-player__feedback:not(:first-child){border-top:1px solid var(--color-line);margin-top:10px;padding-top:9px}.learn-teacher__speech .learn-player__hint{border-top:1px solid var(--color-line);margin-top:10px;padding-top:9px;font-size:12px}.learn-teacher[data-tone=correction] .learn-player__feedback p{color:var(--color-oxide)}.learn-teacher[data-tone=success] .learn-player__feedback p{color:var(--color-moss-strong)}@media (max-width:370px){.learn-teacher{gap:9px}.learn-teacher__avatar{flex-basis:40px;width:40px;height:46px}.learn-teacher__speech{padding:11px 12px}}.learn-player__workspace{grid-template-columns:minmax(300px,540px) minmax(220px,1fr);align-items:start;gap:clamp(24px,5vw,54px);display:grid}.learn-player__workspace.is-game{max-width:620px;display:block}.learn-player__controls{gap:14px;padding-top:8px;display:grid}.learn-player__feedback{border-left:2px solid var(--color-line-strong);color:var(--color-ink-soft);align-items:flex-start;gap:8px;padding:10px 12px;display:flex}.learn-player__feedback p{margin:0;font-size:13px;line-height:1.48}.learn-player__feedback.is-success{border-color:var(--color-moss-strong);color:var(--color-moss-strong)}.learn-player__feedback.is-wrong{border-color:var(--color-oxide);color:var(--color-oxide)}.learn-player__hint{color:var(--color-text-muted);align-items:flex-start;gap:7px;margin:0;font-size:12px;line-height:1.45;display:flex}.learn-player__tools{flex-wrap:wrap;gap:16px;min-height:34px;display:flex}.learn-player__next{justify-content:center;width:100%;margin-top:6px}.game-player-heading{flex-wrap:wrap;align-items:baseline;gap:6px;display:flex}.developer-tag{background:var(--color-moss-soft);border:1px solid var(--color-moss);color:var(--color-moss-strong);letter-spacing:.05em;vertical-align:middle;border-radius:4px;margin-inline-start:5px;padding:1px 4px;font-family:ui-monospace,monospace;font-size:10px;font-weight:700;line-height:1.4;display:inline-block}.learn-overview__header .learn-developer-access{max-width:36em;font-size:12px;line-height:1.5}.game-player-rank,.leaderboard-player-stats{display:none}.game-pass-notice{background:var(--color-moss-soft);color:var(--color-moss-strong);border-radius:8px;align-items:center;gap:8px;margin:0 0 12px;padding:10px 12px;font-size:13px;display:flex}.finished-game-share input{background:var(--color-surface);border:1px solid var(--color-line);color:var(--color-ink-soft);border-radius:6px;width:100%;margin-top:8px;padding:8px;font-size:12px}.finished-game-share--compact{text-align:center;margin-top:12px}.result-share-action{color:var(--color-text-muted);background:0 0;border:0;justify-content:center;align-items:center;gap:6px;min-height:36px;font-size:12px;display:inline-flex}.result-share-action:hover{color:var(--color-moss-strong)}.interactive-learn-board-frame{width:100%;max-width:560px}.learn-board-viewport{width:100%}.interactive-learn-board-frame.is-enlarged .learn-board-viewport{overscroll-behavior:contain;scrollbar-width:thin}.learn-board-zoom{margin-bottom:12px}.interactive-learn-board{aspect-ratio:1;background:var(--color-board);touch-action:manipulation;-webkit-user-select:none;user-select:none;border:1px solid #4c371f47;width:100%;position:relative;overflow:hidden;box-shadow:0 10px 26px #2d20121f}.interactive-learn-board:after{content:"";pointer-events:none;border:1px solid #ffffff24;position:absolute;inset:3px}.interactive-learn-board__grid,.interactive-learn-board__points{position:absolute;inset:0}.interactive-learn-board__grid span{background:#392a19b8;position:absolute}.interactive-learn-board__grid .is-vertical{width:1px}.interactive-learn-board__grid .is-horizontal{height:1px}.interactive-learn-board__point{height:var(--learn-board-point);touch-action:manipulation;min-width:0;min-height:0;width:var(--learn-board-point);z-index:2;background:0 0;border:0;justify-content:center;align-items:center;margin:0;padding:0;display:flex;position:absolute;transform:translate(-50%,-50%)}.interactive-learn-board__point:before{content:"";border:2px solid #0000;border-radius:50%;width:34%;height:34%;transition:border-color .1s,background-color .1s;position:absolute}.interactive-learn-board__point[aria-disabled=false]:hover:before,.interactive-learn-board__point:focus-visible:before{border-color:#335345bd}.interactive-learn-board__point:focus-visible{outline:2px solid var(--color-moss-strong);outline-offset:1px}.interactive-learn-board__stone{pointer-events:none;border-radius:50%;width:92%;height:92%;position:absolute;box-shadow:0 2px 3px #1e140a42}.interactive-learn-board__stone.is-black{background:#171916;border:1px solid #050605}.interactive-learn-board__stone.is-white{background:#fbfaf4;border:1px solid #40372c6b}.interactive-learn-board__point.is-emphasis:not(.has-stone):before{border-color:var(--color-oxide);width:38%;height:38%}.interactive-learn-board__point.is-selected:not(.has-stone):before,.interactive-learn-board__point.is-liberty:not(.has-stone):before{background:var(--color-moss-strong);border-color:var(--color-moss-strong);width:22%;height:22%}.interactive-learn-board__point.is-territory:not(.has-stone):before{border-color:var(--color-moss-strong);background:#315f4e3d;border-radius:2px;width:24%;height:24%}.interactive-learn-board__point.is-black-territory:before,.interactive-learn-board__point.is-white-territory:before{border-radius:1px;width:26%;height:26%}.interactive-learn-board__point.is-black-territory:before{background:#171916;border-color:#171916}.interactive-learn-board__point.is-white-territory:before{background:#fbfaf4;border-color:#40372c6b}.interactive-learn-board__point.is-selected.has-stone .interactive-learn-board__stone,.interactive-learn-board__point.is-group .interactive-learn-board__stone{outline:3px solid var(--color-moss-strong);outline-offset:2px}.interactive-learn-board__last{background:var(--color-oxide);z-index:3;border-radius:50%;width:13%;height:13%;position:absolute}.learn-game{gap:14px;max-width:620px;display:grid}.learn-game__status{border-block:1px solid var(--color-line);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:9px;min-height:48px;display:grid}.learn-game__status strong{font-size:13px;font-weight:650}.learn-game__status small{color:var(--color-text-subtle);font-size:10px}.learn-game__stone{border:1px solid #50463766;border-radius:50%;width:15px;height:15px}.learn-game__stone.is-black{background:#171916}.learn-game__stone.is-white{background:#fbfaf4}.learn-game__message{border-left:2px solid var(--color-moss-strong);color:var(--color-ink-soft);margin:0;padding:9px 11px;font-size:13px;line-height:1.45}.learn-game__actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.learn-game__settlement{border-block:1px solid var(--color-line);gap:12px;padding:14px 0;display:grid}.learn-game__settlement p{color:var(--color-text-muted);margin:0;font-size:12px;line-height:1.45}.learn-game__score{border-block:1px solid var(--color-line);grid-template-columns:1fr 1fr;padding:14px 0;display:grid}.learn-game__score span{gap:4px;display:grid}.learn-game__score span+span{border-left:1px solid var(--color-line);padding-left:16px}.learn-game__score small{color:var(--color-text-subtle);font-size:10px}.learn-game__score strong{font-size:25px;font-weight:570}.learn-game__score p{grid-column:1/-1;margin:12px 0 0;font-size:14px;font-weight:700}.learn-game__review{border-left:2px solid var(--color-moss-strong);gap:8px;padding:10px 12px;display:grid}.learn-game__review strong{font-size:11px}.learn-game__review p{color:var(--color-ink-soft);margin:0;font-size:13px;line-height:1.45}.learn-game__review .button{justify-self:start}@media (max-width:760px){.learn-experience{padding-bottom:calc(120px + env(safe-area-inset-bottom))}.learn-overview__header{grid-template-columns:1fr;padding-top:18px}.learn-overview__meter{grid-row:2}.learn-next-dock{padding:10px 0 max(10px, env(safe-area-inset-bottom));gap:10px}.learn-next-dock__lesson{max-width:42%}.learn-next-dock__button{min-width:56%;min-height:52px;font-size:13px}.learn-player__heading{padding-block:22px 17px}.learn-player__heading p,.learn-player__heading>strong{font-size:15px}.learn-player__workspace{display:block}.learn-player__controls{padding-top:18px}.interactive-learn-board-frame{margin-inline:auto}.learn-player__next{min-height:48px}}@media (max-width:420px){.learn-overview__header h1{font-size:38px}.learn-route-node__copy strong{font-size:15px}.learn-player__heading h1{font-size:30px}.interactive-learn-board{width:calc(100% + 4px);margin-inline:-2px}}@media (prefers-reduced-motion:reduce){.learn-overview__meter span,.learn-player__progress span{transition:none}}