:root{--bg: #0a0a0c;--c1: #14141a;--c2: #1c1c24;--c3: #26262f;--c4: #34343f;--c5: #43434f;--text: #f0f0f4;--dim: #86868f;--accent: #ff5a2e;--gap: 3px;--row-h: 44px;--hdr-h: 28px}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:12px;letter-spacing:.01em;overflow:hidden}.app{display:grid;grid-template-columns:300px 1fr 320px;grid-template-rows:48px 1fr 260px;gap:var(--gap);padding:var(--gap);height:100vh}.header{grid-column:1 / -1}.left{grid-column:1}.stage{grid-column:2}.right{grid-column:3}.timeline{grid-column:1 / -1}.label{color:var(--dim);font-size:10px;text-transform:uppercase;letter-spacing:.14em;font-weight:600}.header{display:flex;align-items:center;padding:0 20px;gap:20px}.brand{font-size:16px;font-weight:800;letter-spacing:-.02em}.brand 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.type{font-size:9px;color:var(--dim);letter-spacing:.14em;text-transform:uppercase;margin-top:3px}.tl-label .dur{font-family:JetBrains Mono,monospace;font-size:10px;color:var(--dim)}.tl-clip{position:absolute;top:0;bottom:0;background:var(--c4);padding:0 12px;font-size:11px;color:var(--text);display:flex;align-items:center;cursor:grab;-webkit-user-select:none;user-select:none}.tl-clip.dragging{cursor:grabbing}.tl-clip.plate{background:var(--c3);color:var(--dim)}.tl-clip.accent{background:var(--accent);color:#0a0a0c;font-weight:700}.playhead{position:absolute;top:0;bottom:0;width:2px;background:var(--accent);left:30%;pointer-events:none;box-shadow:0 0 8px #ff5a2e8c;z-index:2}.playhead-handle{position:absolute;top:0;left:-8px;width:18px;height:18px;background:var(--accent);clip-path:polygon(50% 100%,100% 0,0 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