:root{--bg: #0f1714;--surface: #17211c;--raised: #21302a;--line: #2c3b34;--line-strong: #3e5148;--felt: #1e4a36;--felt-deep: #163a2a;--text: #f5edd8;--text-2: #d9cdae;--text-3: #8f9c97;--accent: #b22e25;--accent-hover: #d23b2f;--accent-text: #e4534a;--on-accent: #f5edd8;--brass: #c9a75e;--jade: #4fb58a;--on-jade: #0f1714;--amber: #e5b23a;--smoke: #8f9c97;--shadow: 0 10px 30px rgba(0, 0, 0, .45);--backdrop: rgba(6, 12, 10, .72);--tile-face: #f4ecd6;--tile-face-2: #e6dab9;--tile-side: #c9b98f;--tile-side-2: #a48f63;--tile-back: #2c5a44;--tile-back-2: #1e4a36;--ink-char: #b8302a;--ink-bamboo: #2a6b4c;--ink-dots: #22456b;--ink-honor: #1e2a26;--display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;--voice: "Instrument Serif", Georgia, "Times New Roman", serif;--cjk: "Noto Serif SC", "Songti SC", "SimSun", serif;--brush: "Ma Shan Zheng", "Noto Serif SC", "Songti SC", serif;--fs-12: 12px;--fs-13: 13px;--fs-15: 15px;--fs-17: 17px;--fs-20: 20px;--fs-24: 24px;--fs-32: 32px;--fs-44: 44px;--fs-64: 64px;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--sp-10: 40px;--r-1: 4px;--r-2: 8px;--r-3: 12px;--r-4: 20px;--r-pill: 999px;--t-fast: .12s;--t-base: .16s;--t-stamp: .42s;color-scheme:dark}@media(prefers-color-scheme:light){:root:not([data-theme=dark]){--bg: #faf4e6;--surface: #f1e9d6;--raised: #ffffff;--line: #e2d8c0;--line-strong: #c9bc9c;--text: #18211d;--text-2: #4e5b55;--text-3: #66736c;--accent: #b22e25;--accent-hover: #9a251e;--accent-text: #b22e25;--on-accent: #faf4e6;--brass: #9a7b33;--jade: #2f7a56;--on-jade: #faf4e6;--amber: #b07f12;--smoke: #7c8983;--shadow: 0 10px 30px rgba(40, 30, 10, .14);--backdrop: rgba(24, 33, 29, .55);color-scheme:light}}:root[data-theme=light]{--bg: #faf4e6;--surface: #f1e9d6;--raised: #ffffff;--line: #e2d8c0;--line-strong: #c9bc9c;--text: #18211d;--text-2: #4e5b55;--text-3: #66736c;--accent: #b22e25;--accent-hover: #9a251e;--accent-text: #b22e25;--on-accent: #faf4e6;--brass: #9a7b33;--jade: #2f7a56;--on-jade: #faf4e6;--amber: #b07f12;--smoke: #7c8983;--shadow: 0 10px 30px rgba(40, 30, 10, .14);--backdrop: rgba(24, 33, 29, .55);color-scheme:light}:root[data-theme=dark]{--bg: #0f1714;--surface: #17211c;--raised: #21302a;--line: #2c3b34;--line-strong: #3e5148;--text: #f5edd8;--text-2: #d9cdae;--text-3: #8f9c97;--accent: #b22e25;--accent-hover: #d23b2f;--accent-text: #e4534a;--on-accent: #f5edd8;--brass: #c9a75e;--jade: #4fb58a;--on-jade: #0f1714;--amber: #e5b23a;--smoke: #8f9c97;--shadow: 0 10px 30px rgba(0, 0, 0, .45);--backdrop: rgba(6, 12, 10, .72);color-scheme:dark}.mahjong-table,.lobby,.table-loading{--surface: #17211c;--raised: #21302a;--line: #2c3b34;--line-strong: #3e5148;--text: #f5edd8;--text-2: #d9cdae;--text-3: #8f9c97;--accent-hover: #d23b2f;--accent-text: #e4534a;--on-accent: #f5edd8;--brass: #c9a75e;--jade: #4fb58a;--on-jade: #0f1714;--amber: #e5b23a;--smoke: #8f9c97;--shadow: 0 10px 30px rgba(0, 0, 0, .45)}:root{font-family:var(--display);font-variation-settings:"opsz" 14;font-synthesis:none;font-weight:500;font-size:var(--fs-15);line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;transition:background var(--t-base),color var(--t-base),border-color var(--t-base),transform var(--t-fast),opacity var(--t-base)}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid 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var(--accent)}.chop-md{width:36px;height:36px;font-size:24px}.chop-lg{width:64px;height:64px;font-size:42px}.chop-xl{width:96px;height:96px;font-size:64px}.chop-two{letter-spacing:-.04em}.chop-md.chop-two{font-size:15px}.chop-lg.chop-two{font-size:24px}.chop-xl.chop-two{font-size:38px}.chop-latin{font-family:var(--display);font-weight:800;font-size:var(--fs-12);letter-spacing:.06em;text-transform:uppercase;width:auto;height:22px;padding:0 7px;border-radius:4px;transform:rotate(-2deg);box-shadow:inset 0 0 0 1px #f5edd84d,inset 0 0 0 2px var(--accent)}.chop-ink{background:var(--text);color:var(--bg);box-shadow:inset 0 0 0 2px #0f171440,inset 0 0 0 4px var(--text)}.chop-jade{background:var(--jade);color:var(--on-jade);box-shadow:inset 0 0 0 2px #0f171440,inset 0 0 0 4px var(--jade)}.chop-sm.chop-ink,.chop-latin.chop-ink{box-shadow:inset 0 0 0 1px #0f171440,inset 0 0 0 2px var(--text)}.chop-sm.chop-jade,.chop-latin.chop-jade{box-shadow:inset 0 0 0 1px #0f171440,inset 0 0 0 2px var(--jade)}.chop-stamp{animation:stamp var(--t-stamp) cubic-bezier(.2,1.4,.4,1) both}@keyframes stamp{0%{transform:rotate(-6deg) scale(1.8);opacity:0}60%{transform:rotate(-6deg) scale(.92);opacity:1}to{transform:rotate(-6deg) scale(1);opacity:1}}.toast{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;text-align:left;padding:10px 14px 10px 10px;background:var(--raised);border:1px solid var(--line-strong);border-radius:var(--r-3);max-width:360px;box-shadow:var(--shadow);color:var(--text);animation:toast-in .24s ease-out both}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.toast-who{width:36px;height:36px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:grid;place-items:center}.toast-who svg{width:24px;height:24px}.toast small{display:block;font-size:var(--fs-12);font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin-bottom:3px}.toast 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clamp(24px,2.4vw,36px) / 1.1 var(--voice);letter-spacing:-.01em;color:var(--text)}.app-header h1 b{font-weight:400;color:var(--accent-text)}.text-button{background:none;border:0;padding:4px 0;font-size:var(--fs-13);font-weight:700;color:var(--text-2);display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-1)}.text-button:hover{color:var(--text);text-decoration:underline;text-underline-offset:3px}.how-to{white-space:nowrap}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--smoke);color:var(--bg);font:800 20px/1 var(--display);flex-shrink:0}.avatar.human{background:var(--jade);color:var(--on-jade)}.avatar.guest{width:36px;height:36px;font-size:var(--fs-17);border:1px solid var(--line-strong);background:var(--surface);color:var(--text)}.main-content{grid-column:2;padding:0 26px 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center/680px;box-shadow:inset 0 0 60px #051408a6,inset 0 0 0 1px #152317,0 2px 4px #0003;isolation:isolate;overflow:hidden;color:var(--text)}.felt-border{position:absolute;top:18px;right:18px;bottom:18px;left:18px;border:1px solid rgba(201,167,94,.55);border-radius:30px;pointer-events:none}.felt-border:after{content:"";position:absolute;top:4px;right:4px;bottom:4px;left:4px;border:1px solid rgba(201,167,94,.4);border-radius:27px}.tile{position:relative;display:inline-flex;width:4.8cqw;height:6.7cqw;min-width:0;flex-shrink:0;justify-content:center;align-items:center;padding:1px 1px 3px;background:linear-gradient(115deg,var(--tile-face) 8%,var(--tile-face-2) 90%);border:1px solid rgba(255,255,255,.35);border-radius:5px;color:var(--ink-honor);box-shadow:0 3px 0 var(--tile-side),0 5px 0 var(--tile-side-2),1px 7px 5px #0006;vertical-align:middle;-webkit-user-select:none;user-select:none}.tile svg{width:90%;height:90%;font-family:var(--cjk);font-weight:700;pointer-events:none}.tile-corner{position:absolute;top:3px;left:4px;font:800 10px/1 var(--display);color:var(--ink-honor);opacity:.8;z-index:1}.tile-small{width:2.5cqw;height:3.5cqw;border-radius:3px;box-shadow:0 2px 0 var(--tile-side),0 3px 0 var(--tile-side-2),1px 5px 3px #0000004d;padding:1px}.tile-small .tile-corner{display:none}.tile-back{background:linear-gradient(120deg,var(--tile-back),var(--tile-back-2));border-color:#c9a75e40;box-shadow:0 3px 0 var(--felt-deep),0 5px #0f2a1e,1px 7px 5px #0006}.tile-small.tile-back{box-shadow:0 2px 0 var(--felt-deep),0 3px #0f2a1e,1px 5px 3px #0000004d}.back-inset{position:absolute;top:3px;right:3px;bottom:3px;left:3px;border:1px solid rgba(201,167,94,.45);border-radius:2px}.tile.selected{transform:translateY(-12px);box-shadow:0 3px 0 var(--tile-side),0 5px 0 var(--tile-side-2),0 0 0 3px var(--amber),0 12px 12px #00000059}.player-hand button.tile:disabled{opacity:1}.player-hand button.tile:not(:disabled):hover{transform:translateY(-8px)}.player-hand button.tile.selected:hover{transform:translateY(-12px)}.nameplate{display:flex;justify-content:center;align-items:center;gap:8px;border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:4px 12px 4px 5px;color:var(--text);background:#0f1714d1;width:max-content;min-height:34px;font-size:var(--fs-13);font-weight:700;position:relative;box-shadow:0 2px 5px #00000040;white-space:nowrap}.nameplate b{font-size:var(--fs-13);font-weight:800;font-variant-numeric:tabular-nums;margin-left:6px}.wind-badge{border-radius:50%;width:24px;height:24px;display:grid;place-items:center;font:700 var(--fs-15) / 1 var(--cjk);color:var(--brass);border:1px solid rgba(201,167,94,.5)}.nameplate.active{border-color:var(--amber);box-shadow:0 0 0 3px #e5b23a33}.nameplate.active .wind-badge{background:var(--amber);color:var(--bg);border-color:var(--amber)}.nameplate 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38px)}.round-marker{position:absolute;top:48%;left:50%;transform:translate(-50%,-50%);width:14cqw;height:15cqw;max-height:158px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;border-radius:14px;background:#0f1714db;color:var(--text);border:1.5px solid var(--brass);box-shadow:inset 0 0 0 3px var(--raised),0 3px #756337,0 7px 10px #0006}.round-wind{font:700 35px/1 var(--cjk);color:var(--brass)}.round-name{text-transform:uppercase;font-size:var(--fs-13);font-weight:800;letter-spacing:.08em}.tiles-left{font-size:var(--fs-12);font-weight:700;color:var(--text-2);font-variant-numeric:tabular-nums}.round-sticks{font-size:var(--fs-12);font-weight:700;color:var(--brass);display:flex;gap:16px}.river{position:absolute;display:grid;grid-template-columns:repeat(6,1fr);width:max-content;gap:3px;z-index:1}.river .tile{width:2.3cqw;height:3.2cqw}.river.long-river .tile{width:1.7cqw;height:2.35cqw}.river-south{top:60%;left:50%;transform:translate(-50%)}.river-north{bottom:65%;left:50%;transform:translate(-50%) rotate(180deg)}.river-east{top:46%;left:65%;transform:translate(-50%,-50%) rotate(-90deg)}.river-west{top:46%;right:65%;transform:translate(50%,-50%) rotate(90deg)}.hands-2 .river{grid-template-columns:repeat(8,auto);top:50%;bottom:auto}.hands-2 .river-south{left:26%;transform:translate(-50%,-50%)}.hands-2 .river-north{left:74%;transform:translate(-50%,-50%) rotate(180deg)}.discard.latest .tile{outline:2px solid var(--amber);outline-offset:2px}.discard.claimed{opacity:.3}.discard.riichi-discard .tile{transform:rotate(90deg) scale(.8)}.player-area{position:absolute;bottom:12px;left:50%;width:90%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:17px;z-index:3}.player-hand{display:flex;align-items:center;justify-content:center;gap:3px;min-height:6.7cqw}.player-hand 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