:root{color-scheme:dark;--bg: #101418;--panel: #171d22;--panel-2: #20272d;--line: #323b43;--text: #f4f1e8;--muted: #a7b0b8;--green: #18b26b;--red: #e94b4b;--amber: #e2a83a;--blue: #4a8fd8;--shadow: 0 18px 60px rgba(0, 0, 0, .28)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:38px;border:1px solid var(--line);border-radius:7px;background:var(--panel-2);color:var(--text);cursor:pointer}button:hover:not(:disabled){border-color:#52606b}button:disabled{cursor:not-allowed;opacity:.45}button.primary{background:var(--green);border-color:var(--green);color:#07110b;font-weight:700}button.danger{color:#ffe7e7;border-color:#e94b4b7a}.app{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{height:58px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 18px;border-bottom:1px solid var(--line);background:#101418f5;position:sticky;top:0;z-index:4}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand-mark{width:32px;height:32px;border-radius:7px;display:grid;place-items:center;background:var(--green);color:#07110b}.status{display:flex;align-items:center;gap:10px;color:var(--muted);min-width:0}.status span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main{display:grid;grid-template-columns:minmax(310px,380px) 1fr;min-height:0}.sidebar{border-right:1px solid var(--line);background:var(--panel);min-height:calc(100vh - 58px);overflow:auto}.controls{display:grid;gap:14px;padding:16px}.section{display:grid;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line)}.section:last-child{border-bottom:0}.section h2{margin:0;font-size:13px;text-transform:uppercase;letter-spacing:0;color:var(--muted)}.dropzone{position:relative;min-height:112px;border:1px dashed #59636d;border-radius:8px;display:grid;place-items:center;padding:14px;background:#13191e}.dropzone.drag{border-color:var(--green);background:#18b26b14}.dropzone input{position:absolute;inset:0;opacity:0;cursor:pointer}.dropzone-label{display:grid;gap:8px;justify-items:center;text-align:center;color:var(--muted)}.file-list,.metric-list,.lap-list{display:grid;gap:8px}.file-row,.metric,.lap-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;min-height:36px;padding:8px 10px;background:var(--panel-2);border:1px solid var(--line);border-radius:7px}.file-row button{width:32px;height:32px;min-height:32px}.best-lap{border-color:#18b26b8c}.muted{color:var(--muted)}.value{font-variant-numeric:tabular-nums;font-weight:700}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field{display:grid;gap:6px}.field label{color:var(--muted);font-size:12px}.field input,.field select{min-height:38px;width:100%;border:1px solid var(--line);border-radius:7px;padding:8px 10px;background:#0e1317;color:var(--text)}.button-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}#exportBestLapBtn{grid-column:1 / -1}.stage{min-width:0;display:grid;grid-template-rows:1fr auto;background:#0b0f12}.canvas-wrap{min-height:0;display:grid;place-items:center;padding:16px}.preview-shell{width:min(100%,1280px);aspect-ratio:16 / 9;background:#050708;border:1px solid var(--line);box-shadow:var(--shadow)}.preview-shell canvas{width:100%;height:100%;display:block}video{display:none}.profile-panel{display:grid;gap:10px;padding:12px 16px 14px;border-top:1px solid var(--line);background:var(--panel)}.profile-head{display:flex;align-items:center;justify-content:space-between;gap:14px}.profile-title{font-size:13px;font-weight:800;text-transform:uppercase;color:var(--text)}.profile-readout{font-variant-numeric:tabular-nums;font-weight:800;color:var(--text);white-space:nowrap}#speedCanvas{width:100%;height:180px;display:block;border:1px solid var(--line);border-radius:7px;background:#0b0f12;cursor:crosshair}.toast{position:fixed;right:18px;bottom:18px;max-width:min(420px,calc(100vw - 36px));padding:12px 14px;border-radius:8px;background:#20272d;border:1px solid var(--line);color:var(--text);box-shadow:var(--shadow);z-index:8}@media(max-width:980px){.main{grid-template-columns:1fr}.sidebar{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}.controls{grid-template-columns:1fr 1fr;align-items:start}}@media(max-width:720px){.topbar{align-items:flex-start;height:auto;min-height:58px;flex-direction:column;padding:12px 14px}.controls,.grid-2,.button-row{grid-template-columns:1fr}.profile-head{flex-direction:column;align-items:flex-start}}