:root{color-scheme:dark;--bg-root: #0B0E14;--bg-panel: #111622;--bg-elevated: #171E2E;--border: #232C3F;--text-primary: #F8FAFC;--text-muted: #94A3B8;--accent: #38BDF8;--accent-strong: #0284C7;--ok: #22C55E;--warn: #F59E0B}*{box-sizing:border-box}body{margin:0;background:var(--bg-root);color:var(--text-primary);font-family:Be Vietnam Pro,Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font-family:inherit}.studio-shell{display:grid;grid-template-rows:56px 1fr 270px;height:100vh;overflow:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:var(--bg-panel);border-bottom:1px solid var(--border);gap:12px}.workspace-grid{display:grid;grid-template-columns:280px 1fr 320px;min-height:0}.sidebar,.inspector{background:var(--bg-panel);padding:14px;overflow-y:auto}.sidebar{border-right:1px solid var(--border)}.inspector{border-left:1px solid var(--border)}.stage-wrap{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:16px;background:radial-gradient(circle at top,#151c2c,#0b0e14 70%);overflow:hidden}.timeline-dock{background:#0d111a;border-top:1px solid var(--border);display:flex;flex-direction:column;padding:10px 14px;overflow-y:auto}.pill{font-size:11px;font-family:JetBrains Mono,monospace;padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-muted)}.btn{border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-primary);padding:6px 12px;border-radius:7px;font-size:12px;font-weight:500;cursor:pointer}.btn:hover{border-color:var(--accent)}.btn-primary{background:linear-gradient(135deg,var(--accent-strong),var(--accent));color:#06101d;border-color:transparent;font-weight:600}.track-row{display:grid;grid-template-columns:140px 1fr;align-items:center;gap:10px;margin-bottom:6px}.track-name{font-family:JetBrains Mono,monospace;font-size:11px;color:var(--text-muted)}.track-lane{position:relative;height:24px;background:#121826;border:1px solid #1E293B;border-radius:5px;overflow:hidden}.clip-block{position:absolute;top:2px;bottom:2px;border-radius:4px;padding:2px 6px;font-size:11px;font-weight:600;color:#06101d;background:linear-gradient(90deg,#0ea5e9,#38bdf8);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.clip-block.audio{background:linear-gradient(90deg,#10b981,#34d399)}.clip-block.motion{background:linear-gradient(90deg,#8b5cf6,#a78bfa);color:#f8fafc}.clip-block.caption{background:linear-gradient(90deg,#f59e0b,#fbbf24)}