.piano{touch-action:none;-webkit-user-select:none;user-select:none;flex:1;min-height:0;position:relative;overflow:hidden}.key{cursor:pointer;-webkit-tap-highlight-color:transparent;border:0;margin:0;padding:0;position:absolute;top:0;bottom:0}.key.white{z-index:1;background:linear-gradient(#fdfdfb,#e8e8e2);border-right:1px solid #bbb;border-radius:0 0 4px 4px}.key.black{z-index:2;background:linear-gradient(#3a3a3a,#111);border-radius:0 0 3px 3px;top:0;bottom:40%;box-shadow:0 2px 4px #0006}.key.white[aria-pressed=true]{background:linear-gradient(#dbeafe,#93c5fd);box-shadow:inset 0 0 12px #2563eb99}.key.black[aria-pressed=true]{background:linear-gradient(#1d4ed8,#1e3a8a)}.key.white.remote{background:linear-gradient(color-mix(in srgb, var(--rc) 60%, #fff), color-mix(in srgb, var(--rc) 30%, #fff));box-shadow:inset 0 0 12px color-mix(in srgb, var(--rc) 70%, transparent)}.key.black.remote{background:linear-gradient(color-mix(in srgb, var(--rc) 75%, #000), 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#0006}.toast.connected{border-color:#4ade80}.toast.disconnected{border-color:#f87171}.toast.info{border-color:#60a5fa}.lobby{flex-direction:column;gap:12px;width:min(320px,90vw);margin:auto;padding:24px;display:flex}.lobby-title{text-align:center;margin:0 0 4px;font-size:20px}.lobby-error{color:#f87171;text-align:center;font-size:13px}.lobby-input{color:#e6e6e6;background:#171a21;border:1px solid #2a303a;border-radius:10px;outline:none;padding:12px 14px;font-size:16px}.lobby-input:focus{border-color:#2563eb}.lobby-btn{color:#e6e6e6;cursor:pointer;background:#1f2937;border:0;border-radius:10px;padding:12px;font-size:15px}.lobby-btn.primary{color:#fff;background:#2563eb}.lobby-btn:disabled{opacity:.5;cursor:default}.lobby-row{gap:10px;display:flex}.lobby-row .lobby-input{flex:1}.roombar{background:#14171d;border-bottom:1px solid #262b36;align-items:center;gap:10px;padding:6px 12px;display:flex;overflow-x:auto}.room-code{color:#60a5fa;white-space:nowrap;font-family:ui-monospace,Consolas,monospace;font-size:12px}.room-player{color:#9aa4b2;white-space:nowrap;font-size:13px}.room-player.host{color:#facc15}.room-leave{color:#f87171;cursor:pointer;white-space:nowrap;background:#1f2937;border:1px solid #7f1d1d;border-radius:6px;margin-left:auto;padding:3px 10px;font-size:11px}.room-main{flex-direction:column;flex:1;min-height:0;display:flex}.roombar{background:#14171d;border-bottom:1px solid #262b36;flex-shrink:0;align-items:center;gap:6px;padding:3px 8px;display:flex;overflow-x:auto}.bar-title{color:#e6e6e6;white-space:nowrap;font-size:14px;font-weight:700}.status-row{color:#565d6b;background:#101318;border-bottom:1px solid #262b36;flex-shrink:0;align-items:center;gap:10px;padding:1px 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playing-pulse{0%,to{opacity:1}50%{opacity:.45}}.player-empty{color:#4b5563;font-size:12px}.chat-panel{flex-direction:column;gap:6px;min-height:0;padding:6px;display:flex}.chat-msgs{flex-direction:column;flex:1;gap:4px;display:flex;overflow-y:auto}.chat-empty{color:#4b5563;margin:auto;font-size:12px}.chat-line{word-break:break-word;font-size:13px}.chat-name{margin-right:6px;font-weight:700}.chat-text{color:#e6e6e6}.chat-input-row{gap:6px;display:flex}.chat-input{color:#e6e6e6;background:#171a21;border:1px solid #2a303a;border-radius:8px;outline:none;flex:1;min-width:0;padding:8px 10px;font-size:13px}.chat-input:focus{border-color:#2563eb}.chat-send{color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:8px;padding:8px 14px;font-size:13px}.tools-toggle{color:#9aa4b2;cursor:pointer;white-space:nowrap;background:#1f2937;border:1px solid #2a303a;border-radius:6px;padding:3px 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