:root{--reimu:#e84057;--marisa:#f5d442;--sakuya:#4a90d9;--patchouli:#9b59b6;--man-color:#c62828;--pin-color:#2e7d32;--sou-color:#1565c0;--honor-gold:#f9a825;--tile-width:52px;--tile-height:70px;--tile-small-width:36px;--tile-small-height:48px;--tile-radius:6px}.app-container.theme-default{--bg-dark:#1a1a2e;--bg-panel:#000000b3;--bg-surface:#0006;--text-primary:#f0e6d3;--text-secondary:#a0a0a0;--border-gold:#c9a84c;--table-green:#1b5e20;--table-green-dark:#0d3b0f;background:radial-gradient(at 20%,#e8405714 0%,#0000 50%),radial-gradient(at 80%,#9b59b614 0%,#0000 50%),radial-gradient(at 50% 0,#f5d4420d 0%,#0000 50%),linear-gradient(#16213e 0%,#1a1a2e 100%)}.app-container.theme-green{--bg-dark:#1b5e20;--bg-panel:#0000008c;--bg-surface:#0000004d;--text-primary:#f5f0e1;--text-secondary:#a8d5a2;--border-gold:#ffd54f;--table-green:#2e7d32;--table-green-dark:#1b5e20;background:radial-gradient(#2e7d32 0%,#1b5e20 60%,#0d3b0f 100%)}.app-container.theme-green .app-header{background:linear-gradient(#00000080 0%,#0000 100%)}.app-container.theme-warm{--bg-dark:#3e2723;--bg-panel:#00000080;--bg-surface:#00000040;--text-primary:#f5f0e1;--text-secondary:#bcaaa4;--border-gold:#d4a574;--table-green:#5d4037;--table-green-dark:#3e2723;background:repeating-linear-gradient(90deg,#0000 0 60px,#ffffff05 60px 61px),linear-gradient(#5d4037 0%,#3e2723 50%,#2c1a12 100%)}.app-container.theme-warm .app-header{background:linear-gradient(#00000080 0%,#0000 100%)}.app-container.theme-light{--bg-dark:#eceff1;--bg-panel:#ffffffd9;--bg-surface:#ffffff80;--text-primary:#37474f;--text-secondary:#78909c;--border-gold:#ff8f00;--table-green:#c8e6c9;--table-green-dark:#a5d6a7;background:radial-gradient(#eceff1 0%,#cfd8dc 100%)}.app-container.theme-light .app-title{-webkit-text-fill-color:#37474f;filter:none;color:#37474f;background:0 0}.app-container.theme-light .app-subtitle{color:#78909c}.app-container.theme-light .app-header{background:linear-gradient(#fff9 0%,#0000 100%)}.app-container.theme-light .tile{box-shadow:0 1px 4px #00000026}.app-container.theme-light .action-panel{border-color:#0000001a}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden}body{background:var(--bg-dark);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Noto Sans SC,Noto Sans JP,Segoe UI,sans-serif}.app-container{background:radial-gradient(at 20%,#e8405714 0%,#0000 50%),radial-gradient(at 80%,#9b59b614 0%,#0000 50%),radial-gradient(at 50% 0,#f5d4420d 0%,#0000 50%),linear-gradient(#16213e 0%,#1a1a2e 100%);flex-direction:column;height:100vh;display:flex}.app-header{-webkit-user-select:none;user-select:none;z-index:10;background:linear-gradient(#0009 0%,#0000 100%);flex-shrink:0;align-items:center;gap:8px;padding:4px 12px;display:flex}.header-spacer{flex:1}.app-title{background:linear-gradient(135deg, var(--reimu), var(--marisa), var(--sakuya), var(--patchouli));-webkit-text-fill-color:transparent;letter-spacing:6px;text-shadow:none;filter:drop-shadow(0 2px 4px #0000004d);-webkit-background-clip:text;background-clip:text;font-size:24px;font-weight:700}.app-subtitle{color:var(--text-secondary);letter-spacing:4px;text-transform:uppercase;margin-top:2px;font-size:11px}.skin-pulldown{color:var(--text-primary);cursor:pointer;appearance:none;background:#ffffff14 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='6'%3E%3Cpath d='M0 0l4 5 4-5' fill='%23a0a0a0'/%3E%3C/svg%3E") right 6px center no-repeat;border:1px solid #c9a84c4d;border-radius:4px;flex-shrink:0;padding:3px 20px 3px 8px;font-size:11px}.skin-pulldown:hover{border-color:var(--border-gold)}.skin-pulldown option{color:#f0e6d3;background:#1a1a2e}.theme-pulldown{color:var(--text-primary);cursor:pointer;appearance:none;background:#ffffff14 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='6'%3E%3Cpath d='M0 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svg{filter:brightness(.75)saturate(.65)contrast(1.1);opacity:.9}.app-header{position:relative}.game-table{flex-direction:column;flex:1;gap:4px;min-height:0;padding:4px 8px;display:flex}.table-header{background:var(--bg-panel);border:1px solid #c9a84c4d;border-radius:8px;flex-shrink:0;justify-content:space-between;align-items:center;padding:4px 12px;display:flex}.game-info{align-items:center;gap:12px;font-size:13px;display:flex}.header-actions{align-items:center;gap:8px;display:flex}.round-info{color:var(--border-gold);font-size:15px;font-weight:700}.honba-info,.riichi-sticks{color:var(--text-secondary);font-size:12px}.btn-new-game{background:linear-gradient(135deg, var(--reimu), #c62828);color:#fff;cursor:pointer;border:none;border-radius:4px;padding:4px 16px;font-size:12px;font-weight:600;transition:all .2s}.btn-new-game:hover{filter:brightness(1.2);transform:translateY(-1px);box-shadow:0 2px 8px #e8405766}.difficulty-selector{align-items:center;display:flex}.difficulty-pulldown{color:var(--text-primary);cursor:pointer;background:#ffffff14;border:1px solid #c9a84c4d;border-radius:4px;flex-shrink:0;padding:3px 8px;font-size:11px}.difficulty-pulldown option{color:#f0e6d3;background:#1a1a2e}.difficulty-pulldown:hover{border-color:var(--border-gold)}.wall-pulldown{z-index:50;position:relative}.btn-wall-pulldown{color:var(--text-primary);cursor:pointer;background:#ffffff14;border:1px solid #c9a84c4d;border-radius:4px;padding:3px 12px;font-size:11px;line-height:1.5;transition:all .2s}.btn-wall-pulldown:hover{background:#ffffff26}.wall-pulldown-menu{background:#1a1a2e;border:1px solid #c9a84c4d;border-radius:6px;width:380px;margin-top:4px;position:absolute;top:100%;right:0;box-shadow:0 8px 24px #00000080}.wall-pulldown-body{grid-template-columns:1fr 1fr;gap:1px;padding:4px;display:grid}.wall-pulldown-col{flex-direction:column;display:flex}.wall-pulldown-header{color:var(--text-secondary);border-bottom:1px solid #ffffff1a;grid-template-columns:1fr 32px 32px 1fr 32px 32px;gap:4px;padding:4px 8px;font-size:10px;font-weight:600;display:grid}.wall-pulldown-row{cursor:default;grid-template-columns:1fr 40px 40px;align-items:center;gap:4px;padding:3px 8px;font-size:12px;display:grid}.wall-pulldown-row.suit-m .wall-tile-name{color:var(--man-color)}.wall-pulldown-row.suit-p .wall-tile-name{color:var(--pin-color)}.wall-pulldown-row.suit-s .wall-tile-name{color:var(--sou-color)}.wall-pulldown-row.honor .wall-tile-name,.wall-pulldown-row.row-honor .wall-tile-name{color:var(--honor-gold)}.wall-pulldown-row.row-suit-m .wall-tile-name{color:var(--man-color)}.wall-pulldown-row.row-suit-p .wall-tile-name{color:var(--pin-color)}.wall-pulldown-row.row-suit-s .wall-tile-name{color:var(--sou-color)}.wall-pulldown-row.clickable{cursor:pointer}.wall-pulldown-row.clickable:hover{background:#42a5f526}.wall-visible{text-align:center;color:var(--text-secondary)}.wall-remaining{text-align:center;color:var(--border-gold);font-weight:600}.swap-banner{text-align:center;color:#42a5f5;background:#42a5f526;border-radius:4px;padding:4px;font-size:13px;font-weight:600;animation:1.5s infinite pulse-indicator}.table-area{flex:1;grid-template-rows:1fr 5fr 5fr 2fr;grid-template-columns:1fr 4fr 1fr;gap:2px;min-height:0;display:grid;position:relative}.table-area>*{min-height:0}.table-area>.opponent-horizontal{grid-area:1/2}.table-area>.opponent-vertical:first-of-type{grid-area:1/1/-1}.table-area>.discard-area{grid-area:2/2/span 2}.table-area>.opponent-vertical:last-of-type{grid-area:1/3/-1}.table-area>.player-section{grid-area:4/2}.opponent-horizontal{background:#0000004d;border-radius:6px;align-items:center;gap:3px;padding:1px 4px;display:flex}.opponent-horizontal .hand-tiles{gap:1px;display:flex}.table-middle{flex:1;grid-template-columns:1fr 4fr 1fr;gap:4px;min-height:0;display:grid}.side-player{width:auto;min-width:0}.opponent-vertical{background:#0000004d;border-radius:8px;flex-direction:column;align-items:center;gap:2px;height:100%;padding:2px;display:flex}.opponent-vertical .hand-vertical{flex-direction:column;align-items:center;gap:1px;display:flex}.opponent-west .hand-tiles .tile,.opponent-west .hand-tiles .tile:hover{transform:rotate(180deg)}.opponent-south .hand-tiles .tile,.opponent-south .hand-tiles .tile:hover{transform:rotate(-90deg)}.opponent-north .hand-tiles .tile,.opponent-north .hand-tiles .tile:hover{transform:rotate(90deg)}.opponent-area .tile .tile-svg{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.opponent-area .tile .tile-svg svg{width:100%;height:100%}.player-info{border-left:3px solid;border-radius:2px;flex-direction:column;align-items:flex-start;gap:1px;min-width:0;padding:2px 8px;display:flex}.player-info-row{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.player-name{font-size:13px;font-weight:600}.player-title{color:var(--text-secondary);font-size:10px}.player-score{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700}.dealer-badge,.riichi-badge{border-radius:3px;padding:1px 6px;font-size:10px;font-weight:700}.dealer-badge{background:var(--border-gold);color:#000}.riichi-badge{background:var(--reimu);color:#fff;animation:1s infinite pulse-badge}@keyframes pulse-badge{0%,to{opacity:1}50%{opacity:.7}}.discard-area{border:2px solid var(--table-green-light);background:radial-gradient(#1b5e2099 0%,#0d3b0fcc 100%);border-radius:12px;flex:1;grid-template-rows:auto 1fr auto;grid-template-columns:1.2fr 1.6fr 1.2fr;gap:2px;min-height:0;padding:6px 8px 2px;display:grid;position:relative}.discard-north{grid-area:1/2}.discard-west{grid-area:2/1}.discard-south{grid-area:2/3}.discard-east{text-align:center;grid-area:3/2}.wall-info{grid-area:2/2;justify-content:center;align-items:center;gap:8px;display:flex}.dora-section{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:10;background:#0000008c;border:1px solid #ffd70040;border-radius:8px;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:4px 8px;padding:4px 8px;display:flex;position:absolute;bottom:6px;right:8px}.discard-column{flex-direction:column;gap:2px;min-height:0;display:flex;overflow:visible}.discard-west{transform:rotate(90deg)}.discard-south{transform:rotate(-90deg)}.discard-north{transform:rotate(180deg)}.discard-label{opacity:.6;white-space:nowrap;font-size:10px;font-weight:600}.discard-tiles{flex-flow:wrap;justify-content:flex-start;gap:1px;max-height:300px;display:flex;overflow-y:auto}.discard-east .discard-tiles,.discard-north .discard-tiles{flex-wrap:nowrap;max-height:none;overflow:auto hidden}.discard-empty{color:#ffffff26;font-size:12px}.wall-info{background:#0000004d;border-radius:6px;grid-column:1/-1;justify-content:center;align-items:center;gap:8px;padding:4px;display:flex}.wall-count{color:var(--text-secondary);font-variant-numeric:tabular-nums;font-size:12px}.dora-indicators{gap:2px;display:flex}.player-section{background:#0006;border-radius:8px;margin-top:4px;padding:4px 4px 6px;transition:box-shadow .3s;position:relative}.tile-drawn-gap{margin-left:24px}.player-wind{color:#ffffff4d;border:1px solid #ffffff1a;border-radius:3px;margin-left:4px;padding:0 4px;font-size:10px;font-weight:700}.player-active .player-wind{color:var(--border-gold);border-color:#ffd7004d}.game-length-select{color:#f0e6d3;cursor:pointer;background:#0000004d;border:1px solid #ffffff26;border-radius:4px;padding:2px 6px;font-size:12px}.game-length-select:hover{border-color:var(--border-gold)}.game-length-select 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6px;display:flex}.tenpai-label{color:#e91e63;font-size:11px;font-weight:700}.tenpai-count{color:var(--text-secondary);margin-left:2px;font-size:10px}.dora-label{color:var(--border-gold);font-size:10px;font-weight:600}.dora-pair{align-items:center;gap:2px;display:flex}.ura-indicator{border-left:1px solid #ffd70033;align-items:center;gap:2px;margin-left:4px;padding-left:6px;display:inline-flex}.ura-tile-name{color:#ff9800;font-size:10px;font-weight:500}.dora-arrow{color:var(--text-secondary);font-size:10px}.dora-tile-name{color:var(--border-gold);font-size:10px;font-weight:600}.player-bar{align-items:center;gap:8px;margin-bottom:1px;padding-top:4px;display:flex}.player-hand{min-height:var(--tile-height);justify-content:center;gap:1px;padding:2px 0;display:flex;position:relative}.meld-area{align-items:center;gap:4px;display:flex}.meld-group{background:#ffffff0d;border-radius:4px;gap:1px;padding:1px;display:flex}.meld-chi{border-left:2px solid #4caf50}.meld-pon{border-left:2px solid #f44336}.meld-kan,.meld-ankan,.meld-kakan{border-left:2px solid #2196f3}.meld-called-tile{transform:rotate(90deg)}.meld-from-label{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);white-space:nowrap;background:#00000080;border:1px solid #ffffff1a;border-radius:4px;align-items:center;gap:2px;padding:3px 5px;font-size:11px;font-weight:700;line-height:1;display:flex}.discard-river{flex-wrap:wrap;gap:1px;min-height:20px;display:flex}.player-river{justify-content:center}.tile{width:var(--tile-width);height:var(--tile-height);border-radius:var(--tile-radius);cursor:pointer;-webkit-user-select:none;user-select:none;background:linear-gradient(#fffef5 0%,#f5f0e1 100%);border:1px solid #d4c9a8;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:inline-flex;position:relative;box-shadow:0 1px 3px #0003}.tile:hover{z-index:5;transform:translateY(-3px);box-shadow:0 4px 12px #0000004d}.tile:active{transform:translateY(-1px)}.tile-small{width:var(--tile-small-width);height:var(--tile-small-height);border-radius:4px;font-size:10px}.tile-small .tile-svg svg{width:100%;height:100%}.tile-small:hover{transform:translateY(-2px)}.tile-inner{flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:2px;display:flex}.tile-svg{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.tile:after{content:"";pointer-events:none;z-index:2;background:linear-gradient(160deg,#ffffff40 0%,#ffffff14 30%,#0000 50%);border-radius:4px;position:absolute;inset:1px}.tile-svg svg{pointer-events:none;width:100%;height:100%;display:block}.tile-honor-char{font-size:20px;font-weight:700;line-height:1}.tile-small .tile-honor-char{font-size:12px}.tile-honor-sub{opacity:.7;margin-top:1px;font-size:8px;line-height:1}.tile-small .tile-honor-sub{display:none}.suit-man{border-bottom:2px solid var(--man-color)}.suit-pin{border-bottom:2px solid var(--pin-color)}.suit-sou{border-bottom:2px solid var(--sou-color)}.tile-akadora{border-bottom:2px solid #e53935!important}.honor{background:linear-gradient(#fafafa 0%,#e8e4d8 100%)}.honor-east .tile-honor-char,.honor-east .tile-honor-sub{color:#2e7d32}.honor-east{border-bottom:2px solid #2e7d32}.honor-south .tile-honor-char,.honor-south .tile-honor-sub{color:#c62828}.honor-south{border-bottom:2px solid #c62828}.honor-west .tile-honor-char,.honor-west .tile-honor-sub{color:#e65100}.honor-west{border-bottom:2px solid #e65100}.honor-north .tile-honor-char,.honor-north .tile-honor-sub{color:#1565c0}.honor-north{border-bottom:2px solid #1565c0}.honor-white .tile-honor-char,.honor-white .tile-honor-sub{color:#616161}.honor-white{border-bottom:2px solid #9e9e9e}.honor-green .tile-honor-char,.honor-green .tile-honor-sub{color:#2e7d32}.honor-green{border-bottom:2px solid #2e7d32}.honor-red .tile-honor-char,.honor-red .tile-honor-sub{color:#c62828}.honor-red{border-bottom:2px solid #c62828}.tile-selected{z-index:3;border-color:#42a5f5!important;transform:translateY(-8px)!important;box-shadow:0 0 0 3px #42a5f5,0 6px 16px #42a5f566!important}.tile-highlighted{box-shadow:0 0 0 2px var(--border-gold), 0 2px 8px #c9a84c66}.tile-dimmed{opacity:.7}.tile-riichi{transform-origin:50%;margin:0 4px;transform:rotate(90deg)!important}.tile-riichi:hover{transform:rotate(90deg)translateY(-2px)!important}.tile-newly-drawn{z-index:2;animation:1.2s ease-out infinite newly-drawn-glow;box-shadow:0 0 0 2px #ffd54f,0 0 12px #ffd54f80}@keyframes newly-drawn-glow{0%,to{box-shadow:0 0 0 2px #ffd54f,0 0 12px #ffd54f66}50%{box-shadow:0 0 0 3px #ffd54f,0 0 20px #ffd54fb3}}.tile-called{z-index:5;animation:.6s ease-in-out infinite alternate called-glow;box-shadow:0 0 0 3px #ff9800,0 0 16px #ff9800b3}@keyframes called-glow{0%{box-shadow:0 0 0 3px #ff9800,0 0 12px #ff980080}to{box-shadow:0 0 0 5px #ff5722,0 0 24px #ff5722e6}}.tile-claimed{filter:grayscale(.6);opacity:.3!important}.tile-dora-indicator{z-index:1;box-shadow:0 0 0 2px #ef5350,0 0 8px #ef535066}.tile-back{cursor:default;background:linear-gradient(#1a5c2a 0%,#0d3b1a 100%);border-color:#0a2e14}.tile-back:hover{transform:none;box-shadow:0 1px 3px #0003}.tile-back-inner{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.tile-back-pattern{color:#ffffff26;font-size:20px}.tile-small .tile-back-pattern{font-size:12px}.action-panel{background:var(--bg-panel);border:1px solid #c9a84c33;border-radius:8px;flex-wrap:wrap;flex-shrink:0;align-items:center;gap:8px;min-height:32px;padding:4px 8px;display:flex}.panel-toggles{flex-shrink:0;gap:4px;display:flex}.panel-actions{flex-wrap:wrap;flex:1;justify-content:center;align-items:center;gap:6px;display:flex}.action-buttons{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;display:flex}.btn-action{cursor:pointer;letter-spacing:1px;border:none;border-radius:6px;padding:6px 18px;font-size:13px;font-weight:700;transition:all .2s;position:relative}.btn-action:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000004d}.btn-action:active{transform:translateY(0)}.chi-submenu{flex-wrap:wrap;gap:4px;display:flex}.btn-chi-sub{border:1px solid var(--border-gold);color:var(--text-primary);cursor:pointer;background:#22c55e26;border-radius:4px;padding:4px 10px;font-size:12px;font-weight:600;transition:all .15s}.btn-chi-sub:hover{background:#22c55e59;transform:translateY(-1px)}.btn-ron{color:#fff;background:linear-gradient(135deg,#ff1744,#d50000);box-shadow:0 2px 8px #ff17444d}.btn-tsumo{color:#fff;background:linear-gradient(135deg,#ff6f00,#e65100);box-shadow:0 2px 8px #ff6f004d}.btn-pon{color:#fff;background:linear-gradient(135deg,#f44336,#c62828)}.btn-chi{color:#fff;background:linear-gradient(135deg,#4caf50,#2e7d32)}.btn-kan{color:#fff;background:linear-gradient(135deg,#2196f3,#1565c0)}.btn-riichi{background:linear-gradient(135deg, var(--marisa), #f57f17);color:#1a1a2e;animation:1.5s infinite glow-riichi}.btn-nine-orphans{color:#fff;background:linear-gradient(135deg,#e65100,#ff6f00)}@keyframes glow-riichi{0%,to{box-shadow:0 0 8px #f5d44266}50%{box-shadow:0 0 20px #f5d442cc}}.btn-pass{color:var(--text-primary);background:#ffffff1a;border:1px solid #fff3}.btn-discard-confirm{background:linear-gradient(135deg, var(--border-gold), #8d6e2c);color:#1a1a2e;padding:6px 24px;font-size:14px}.action-hint{color:var(--text-secondary);font-size:12px;animation:1.5s infinite blink}@keyframes 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