:root{--bg: #0b0e14;--bg-panel: #10141d;--bg-raise: #1c2333;--border: #232c40;--text: #cdd6e4;--text-dim: #7b869c;--accent: #4f46e5;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:14px}.app{height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:10px;padding:0 16px;height:46px;border-bottom:1px solid var(--border);flex:none}.back-link{color:var(--text-dim);text-decoration:none;font-size:12.5px;padding-right:10px;border-right:1px solid var(--border);white-space:nowrap}.back-link:hover{color:var(--text)}.logo{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}.topbar h1{font-size:15px;font-weight:600;margin:0}.topbar-sub{color:var(--text-dim);font-size:12px}.columns{flex:1;display:grid;grid-template-columns:270px 1fr minmax(360px,440px);min-height:0}.panel{min-height:0;overflow-y:auto}.panel h2{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);margin:18px 14px 8px}.left{border-right:1px solid var(--border);background:var(--bg-panel)}.lib-list{display:flex;flex-direction:column;gap:4px;padding:0 10px}.lib-item{display:flex;flex-direction:column;gap:2px;text-align:left;background:none;border:1px solid transparent;border-radius:8px;padding:8px 10px;color:var(--text);cursor:pointer}.lib-item:hover{background:var(--bg-raise)}.lib-item.active{background:var(--bg-raise);border-color:var(--accent)}.lib-name{font-weight:600;font-size:13.5px}.lib-blurb{font-size:11px;color:var(--text-dim);line-height:1.35}.param-list{display:flex;flex-direction:column;gap:12px;padding:0 14px 20px}.param{display:flex;flex-direction:column;gap:5px}.param-label{display:flex;justify-content:space-between;font-size:12px;color:var(--text-dim)}.param-value{color:var(--text);font-variant-numeric:tabular-nums}.param input[type=range]{width:100%;accent-color:var(--accent)}.param input[type=color]{width:100%;height:28px;border:1px solid var(--border);border-radius:6px;background:var(--bg-raise);padding:2px;cursor:pointer}.audio-controls{padding:0 14px 20px;display:flex;flex-direction:column;gap:10px}.audio-src{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}.audio-btn{background:var(--bg-raise);color:var(--text-dim);border:1px solid var(--border);border-radius:7px;padding:7px 0;font-size:12.5px;cursor:pointer}.audio-btn:hover{color:var(--text)}.audio-btn.active{border-color:var(--accent);color:var(--text);background:color-mix(in srgb,var(--accent) 18%,var(--bg-raise))}.meter-track{height:6px;border-radius:3px;background:var(--bg-raise);overflow:hidden}.meter-fill{height:100%;width:0%;border-radius:3px;background:linear-gradient(90deg,#43d9ad,#fbbf24)}.audio-hint{margin:0;font-size:11px;color:var(--text-dim);line-height:1.5}.audio-hint code{background:var(--bg-raise);border-radius:4px;padding:1px 4px;font-size:10.5px}.center{position:relative;display:flex;flex-direction:column;overflow:hidden}.preview-bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;transition:background .5s ease}.preview-mount{flex:1;min-height:0;position:relative}.preview-badge{position:absolute;top:12px;left:50%;transform:translate(-50%);z-index:5;font-size:12px;color:var(--text-dim);background:color-mix(in srgb,var(--bg) 75%,transparent);border:1px solid var(--border);border-radius:999px;padding:4px 14px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:border-color .3s ease}.state-bar{position:absolute;bottom:16px;left:50%;transform:translate(-50%);z-index:5;display:flex;gap:8px}.state-btn{background:color-mix(in srgb,var(--bg-raise) 85%,transparent);color:var(--text);border:1px solid var(--border);border-radius:999px;padding:8px 16px;font-size:13px;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:border-color .2s ease,color .2s ease}.state-btn:hover{background:var(--bg-raise)}.state-btn.active{font-weight:600}.right{border-left:1px solid var(--border);background:var(--bg-panel);display:flex;flex-direction:column}.export-head{display:flex;align-items:center;justify-content:space-between;padding-right:14px;flex:none}.export-actions{display:flex;gap:6px}.btn{background:var(--bg-raise);color:var(--text);border:1px solid var(--border);border-radius:7px;padding:6px 12px;font-size:12.5px;cursor:pointer}.btn:hover{border-color:var(--text-dim)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{filter:brightness(1.12)}.export-hint{margin:2px 14px 10px;font-size:12px;color:var(--text-dim);line-height:1.5;flex:none}.export-hint code{background:var(--bg-raise);border-radius:4px;padding:1px 5px;font-size:11px}.export-code{flex:1;min-height:0;margin:0 14px 14px;padding:12px;background:#0d1017;border:1px solid var(--border);border-radius:8px;overflow:auto;font-family:Cascadia Code,Consolas,monospace;font-size:11px;line-height:1.5;color:#a8b6cc;white-space:pre}