:root{--bg:#12281d;--felt:#16613c;--felt-dark:#0f4a2d;--line:rgba(255,255,255,0.16);--tile-face:#f6f1e3;--tile-edge:#cdc4ad;--ink:#21201c;--ink-red:#b3261e;--text:#f2f5f3;--text-dim:rgba(242,245,243,0.62);--accent:#f0b429;--danger:#d94f45;--radius:6px;color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body,html{margin:0;padding:0;height:100%;overscroll-behavior:none}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Hiragino Sans,Noto Sans JP,sans-serif;font-size:14px;line-height:1.5;-moz-user-select:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:manipulation}input{-moz-user-select:text;user-select:text;-webkit-user-select:text}button{font:inherit;color:inherit;border:none;background:none;cursor:pointer}.screen{height:100vh;height:100dvh;overflow:hidden;padding-top:env(safe-area-inset-top,0);padding-bottom:env(safe-area-inset-bottom,0)}.lobby,.screen{display:flex;flex-direction:column;width:100%}.lobby{gap:20px;padding:32px 20px;justify-content:center;flex:1 1;min-height:0;overflow-y:auto;max-width:480px;margin:0 auto}.lobby h1{font-size:28px;margin:0;letter-spacing:.08em}.lobby p{margin:0;color:var(--text-dim)}.field{display:flex;flex-direction:column;gap:6px}.field input{font:inherit;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:rgba(0,0,0,.25);color:var(--text)}.primary{padding:14px;border-radius:10px;background:var(--accent);color:#241a00;font-weight:700;text-align:center}.primary:disabled{opacity:.5}.secondary{padding:12px;border-radius:10px;border:1px solid var(--line);text-align:center}.seat-list{display:flex;flex-direction:column;gap:8px;padding:0;margin:0;list-style:none}.seat-list li{display:flex;justify-content:space-between;padding:10px 12px;border-radius:8px;background:rgba(0,0,0,.25)}.seat-list .cpu{color:var(--text-dim)}.table{position:relative;flex:1 1;min-height:0;display:flex;flex-direction:column;background:var(--felt)}.status{flex:none;display:flex;align-items:center;gap:10px;padding:6px 10px;background:rgba(0,0,0,.28);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.status .round{font-weight:700}.status .dim{color:var(--text-dim)}.status .dora{display:flex;gap:2px;margin-left:auto}.board{flex:1 1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;justify-content:space-between;gap:8px;padding:8px 8px 4px;-webkit-overflow-scrolling:touch}.seat-area{min-width:0;border-top:2px solid transparent;padding-top:2px;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"head head" "river melds";grid-column-gap:8px;column-gap:8px;align-items:start}.seat-area header{grid-area:head}.seat-area.turn{border-top-color:var(--accent)}.seat-area header{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-dim)}.wind{min-width:1.5em;padding:1px 3px;background:rgba(255,255,255,.16);color:var(--text);font-size:12px;text-align:center}.riichi-mark,.wind{display:inline-block;border-radius:3px;font-weight:700}.riichi-mark{margin:0 5px 0 4px;padding:1px 5px;background:var(--danger);color:#fff;font-size:11px;vertical-align:1px}.seat-area .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.seat-area .points{margin-left:auto;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:700;color:var(--text)}.seat-area.mine{border-top:none}.river{grid-area:river;flex-direction:column;margin-top:3px}.river,.river-row{display:flex;gap:1px}.seat-area.mine .river .tile{--tile-w:28px}.melds{grid-area:melds;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:5px;margin-top:3px;max-width:46vw}.melds .tile{--tile-w:19px}.meld{display:flex;gap:1px}.self{flex:none;position:relative;padding:5px 6px 8px;background:rgba(0,0,0,.22)}.hand{display:flex;gap:1.5px;justify-content:center;flex-wrap:nowrap;padding:4px 0 6px;overflow-x:auto;scrollbar-width:none}.hand .drawn{margin-left:7px}.actions{position:absolute;bottom:calc(100% + 8px);left:0;right:0;display:flex;gap:8px;flex-wrap:wrap;justify-content:center;pointer-events:none}.action{pointer-events:auto;padding:10px 18px;border-radius:999px;background:var(--accent);color:#241a00;font-weight:700;min-width:72px;text-align:center}.action.pass{background:rgba(255,255,255,.16);color:var(--text)}.action.riichi{background:var(--danger);color:#fff}.timer{position:absolute;top:0;left:0;right:0;height:3px;background:rgba(255,255,255,.15);overflow:hidden}.timer span{display:block;height:100%;background:var(--accent);transition:width .25s linear}.tile{--tile-w:26px;padding:0;border:none;background:none}.tile,.tile-inner{width:var(--tile-w);height:calc(var(--tile-w) * 4 / 3);flex:none;display:flex;align-items:center;justify-content:center}.tile-inner{background-position:50%;background-size:100% 100%;background-repeat:no-repeat;filter:drop-shadow(0 1px 1px rgba(0,0,0,.35))}.tile.back .tile-inner{border-radius:12%;border:1px solid rgba(0,0,0,.45);box-shadow:inset 0 -2px 0 rgba(0,0,0,.25)}.tile .face{width:84%;height:84%;display:block;pointer-events:none}.tile.small{--tile-w:26px}.tile.hand-tile{--tile-w:min(52px,calc((100vw - 42px) / 14))}.tile.hand-tile:disabled{opacity:.45}.tile.called{opacity:.4}.tile.sideways{width:calc(var(--tile-w) * 4 / 3);height:var(--tile-w)}.tile.sideways .tile-inner{transform:rotate(90deg)}.tile.hand-tile:not(:disabled):active .tile-inner{transform:translateY(-6px)}.result{position:fixed;inset:0;background:rgba(0,0,0,.72);display:flex;align-items:center;justify-content:center;padding:16px 16px calc(16px + env(safe-area-inset-bottom, 0px));z-index:10}.result-card{background:#1b2b22;border:1px solid var(--line);border-radius:14px;padding:18px;width:100%;max-width:420px;max-height:80dvh;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.result-card h2{margin:0;font-size:20px}.yaku-list{display:flex;flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.yaku-list li{display:flex;justify-content:space-between;border-bottom:1px dotted var(--line);padding:2px 0}.score-line{font-size:18px;font-weight:700;text-align:right}.deltas{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:6px;gap:6px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.deltas div{display:flex;justify-content:space-between;padding:6px 8px;border-radius:6px;background:rgba(0,0,0,.3)}.plus{color:#7bd88f}.minus{color:var(--danger)}.notice{padding:10px 12px;border-radius:8px;background:rgba(217,79,69,.2);border:1px solid rgba(217,79,69,.5)}.chi-label{display:flex;align-items:center;gap:4px}@media (max-height:560px){.board{gap:4px;padding:4px 6px 0}.river{flex-direction:row;flex-wrap:wrap;align-content:flex-start}.river .tile{--tile-w:22px}.seat-area.mine .river .tile{--tile-w:24px}.tile.hand-tile{--tile-w:min(40px,calc((100vw - 42px) / 14))}.self{padding:4px 6px 6px}.hand{padding:3px 0 4px}.action{padding:8px 14px;min-width:60px}}@media 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var(--line);background:rgba(255,255,255,.06);font-size:13px;text-align:center}.choice-option.on{background:var(--accent);border-color:var(--accent);color:#241a00;font-weight:700}.hint{margin:0;font-size:12px;text-align:center}.dim,.hint{color:var(--text-dim)}.cpu-badge{display:inline-block;margin-left:4px;font-size:.9em;line-height:1;vertical-align:baseline;filter:grayscale(.15)}.notice.arrival{background:rgba(240,180,41,.9);border-color:transparent;color:#241a00;font-weight:700;text-align:center;animation:arrival-in .25s ease-out}@keyframes arrival-in{0%{opacity:0;transform:translateY(-6px)}}.seat-list li.taken{background:rgba(240,180,41,.16);border-left:3px solid var(--accent)}.room-note{margin:0;font-size:11px;color:var(--text-dim);text-align:center}.table-notice{position:absolute;top:52px;left:50%;transform:translateX(-50%);z-index:6;margin:0;padding:7px 16px;border-radius:999px;background:rgba(240,180,41,.94);color:#241a00;font-weight:700;font-size:13px;white-space:nowrap;pointer-events:none;animation:table-notice-in .2s ease-out}@keyframes table-notice-in{0%{opacity:0;transform:translate(-50%,-6px)}}.table-notice.alert{padding:10px 22px;font-size:17px;letter-spacing:.06em;background:var(--danger);color:#fff;box-shadow:0 0 0 0 rgba(217,79,69,.7);animation:table-notice-in .2s ease-out,riichi-pulse 1.1s ease-out 3}@keyframes riichi-pulse{0%{box-shadow:0 0 0 0 rgba(217,79,69,.75)}to{box-shadow:0 0 0 22px rgba(217,79,69,0)}}.winning-hand{display:flex;flex-direction:column;gap:6px;margin:6px 0 10px}.winning-tiles{display:flex;flex-wrap:wrap;align-items:flex-end;gap:1px}.winning-tile{display:flex;flex-direction:column;align-items:center;gap:2px;margin-left:8px}.winning-tile-label{font-size:10px;color:var(--accent);font-weight:700;line-height:1}.winning-melds{display:flex;flex-wrap:wrap;gap:6px}.tenpai-hand{margin-bottom:8px}.tenpai-who{flex-wrap:wrap;gap:4px;margin:0 0 3px;font-size:13px}.tenpai-waits,.tenpai-who{display:flex;align-items:center}.tenpai-waits{gap:2px;margin-left:auto;font-size:11px;color:var(--accent)}.tenpai-meld{margin-left:8px}