:root{--bg:#f6f3ec;--bg-glow:#fbf9f4;--surface:#fdfbf7;--ink:#1d1912;--ink-soft:#6f675a;--hairline:#e4ded0;--hairline-strong:#cfc7b4;--accent:#bc4b26;--accent-strong:#9d3c1c;--accent-wash:#f4e5dc;--good:#4d7355;--good-soft:#e9efe6;--bad:#9c3a2e;--bad-soft:#f6e4e0;--warn:#8a6d1f;--warn-soft:#f4ecd6;--tile-face:#fffdf8;--tile-ink:#1d1912;--tile-edge:rgba(29,25,18,0.13);--tray:#e9e2d2;--tray-line:#ddd5c2;--radius-tile:8px;--radius-ui:8px;--font-sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;--font-display:Georgia,"Times New Roman","Songti SC",serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background-image:radial-gradient(ellipse 90% 55% at 50% -5%,var(--bg-glow),transparent);background-repeat:no-repeat;line-height:1.6;font-size:15.5px;transition:background .22s ease,color .22s ease}::selection{background:var(--accent-wash);color:var(--ink)}.container{max-width:920px;margin:0 auto;padding:0 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auto;display:grid}.stats-bar{display:flex;justify-content:center;align-items:flex-start;gap:clamp(32px,9vw,64px);margin-bottom:26px}.stat{display:grid;justify-items:center;grid-gap:1px;gap:1px}.stat-label{font-size:.66rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft)}.stat-value{font-size:1.8rem;line-height:1.15;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--ink)}.stat-caption{font-size:.74rem;color:var(--ink-soft);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-left:7px;vertical-align:.32em}.live-dot.breathing{animation:breath 2.2s ease-in-out infinite}@keyframes breath{0%,to{opacity:.25;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}.stage{display:grid;grid-gap:12px;gap:12px;justify-items:center;align-content:start}.board-frame{max-width:460px;margin:0 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var(--hairline-strong);background:transparent;font-family:var(--font-display);font-size:1.05rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;cursor:pointer;color:var(--ink);transition:border-color .12s ease,background .12s ease,transform 90ms ease}.numpad button:hover:not(:disabled){border-color:var(--ink)}.numpad button:active:not(:disabled){transform:scale(.94)}.numpad button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.numpad button:disabled{opacity:.35;cursor:not-allowed}.numpad .numpad-blank{grid-column:span 2;aspect-ratio:auto;font-family:var(--font-sans);font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft)}.paste-area{width:100%;min-height:64px;border:1px solid var(--hairline-strong);border-radius:var(--radius-ui);padding:9px 11px;font-family:var(--font-sans);font-size:.95rem;resize:vertical;background:var(--surface);color:var(--ink)}.paste-area:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.status-line{border-left:2px solid transparent;padding:10px 14px;font-size:.92rem}.status-line ul{margin:4px 0 0;padding-left:18px}.status--ok{background:var(--good-soft);border-left-color:var(--good)}.status--ok,.status--ok strong{color:var(--good)}.status--bad{background:var(--bad-soft);color:var(--bad);border-left-color:var(--bad)}.status--info{background:var(--accent-wash);color:var(--accent-strong);border-left-color:var(--accent)}.status--warn{background:var(--warn-soft);color:var(--warn);border-left-color:var(--warn)}.spinner{width:13px;height:13px;border-radius:50%;border:2px solid color-mix(in srgb,currentColor 30%,transparent);border-top-color:currentcolor;animation:spin .8s linear infinite;display:inline-block;vertical-align:-2px;margin-right:7px}@keyframes spin{to{transform:rotate(1turn)}}.playback-meta{display:flex;flex-wrap:wrap;gap:6px 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p,.tag{color:var(--ink-soft)}.tag{display:inline-block;border:1px solid var(--hairline-strong);border-radius:999px;font-size:.68rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:1px 9px;margin-left:10px;vertical-align:2px}@media (max-width:420px){.button{padding:10px 16px}.header-inner{height:auto;min-height:52px;padding-top:6px;padding-bottom:6px;gap:8px}.brand{font-size:.98rem;gap:7px}.brand-mark{width:18px;height:18px;padding:2.5px}.site-nav{gap:10px}.site-nav a{padding:4px 0;font-size:.66rem;letter-spacing:.07em}.stats-bar{gap:26px}.stat-value{font-size:1.5rem}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:root{color-scheme:light;--bg:#f4f5f1;--bg-glow:#f4f5f1;--surface:#ffffff;--ink:#1d2a24;--ink-soft:#64736b;--hairline:#e1e7e0;--hairline-strong:#cbd7cd;--accent:#326a53;--accent-strong:#245640;--accent-wash:#e8f1e9;--good:#2e6a4e;--good-soft:#edf5ee;--bad:#a3473e;--bad-soft:#fbefec;--warn:#8b6329;--warn-soft:#fcf4e7;--tile-face:#ffffff;--tile-ink:#21362b;--tile-edge:rgba(28,65,43,.08);--tray:#e1e9e0;--tray-line:#d3ded3;--radius-tile:12px;--radius-ui:10px;--home-content-width:900px;--font-sans:"Avenir Next",Avenir,"Segoe UI",system-ui,sans-serif;--font-display:"Avenir Next",Avenir,"Segoe UI",system-ui,sans-serif}body{background:var(--bg);background-image:none;color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.58}.container{max-width:1200px;padding-left:32px;padding-right:32px}h1,h2,h3{font-family:var(--font-display);font-weight:650;letter-spacing:-.045em}h1{line-height:1.04}h2{line-height:1.16}a{-webkit-text-decoration-color:color-mix(in srgb,var(--accent) 45%,transparent);text-decoration-color:color-mix(in srgb,var(--accent) 45%,transparent)}a:hover{color:var(--accent-strong)}.eyebrow{display:block;color:var(--accent);font-size:.71rem;font-weight:750;letter-spacing:.17em;line-height:1.4}.site-header{background:color-mix(in srgb,var(--bg) 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h1{font-size:clamp(3.4rem,5.7vw,5.75rem);margin:17px 0 24px;max-width:10ch}.hero-lede{max-width:480px;color:var(--ink-soft);font-size:clamp(1.05rem,1.5vw,1.22rem);line-height:1.55;margin:0 0 43px}.hero-rule{display:flex;align-items:baseline;gap:18px;border-top:1px solid var(--hairline-strong);padding-top:20px;color:var(--ink-soft);font-size:.86rem}.rule-index{color:var(--accent);font-size:.72rem;font-weight:750;white-space:nowrap;letter-spacing:.1em}.hero-link{display:inline-block;margin-top:38px;color:var(--ink-soft);font-size:.9rem;text-decoration:none}.hero-link span{display:block;color:var(--accent-strong);font-weight:750;margin-top:5px}.hero-link:hover span{text-decoration:underline;text-underline-offset:4px}.hero-game{min-width:0}.game-wrap{max-width:340px;margin:0;padding:0;background:transparent;border:0;box-shadow:none}.game-wrap .stage{gap:8px;width:100%;justify-items:stretch}.game-board-card{padding:14px;background:var(--surface);border:1px solid 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