:root{--bg-primary: #090d16;--bg-surface: #0f172a;--bg-card: rgba(30, 41, 59, .7);--border-subtle: rgba(255, 255, 255, .08);--border-active: #38bdf8;--text-main: #f8fafc;--text-muted: #94a3b8;--accent-cyan: #38bdf8;--accent-green: #10b981;--accent-red: #ef4444;--accent-yellow: #facc15;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}header{background:#0f172ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);padding:12px 18px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:10px}.brand-icon{width:28px;height:28px;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-green));border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;color:#000}.brand h1{font-size:16px;font-weight:700;letter-spacing:-.02em}.session-badge{display:flex;align-items:center;gap:8px;background:#ffffff0d;border:1px solid var(--border-subtle);padding:4px 10px;border-radius:9999px;font-size:12px}.calib-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-yellow)}.calib-dot.active{background:var(--accent-green);box-shadow:0 0 8px var(--accent-green)}main{flex:1;display:flex;flex-direction:column;gap:14px;padding:14px;max-width:1400px;margin:0 auto;width:100%}.control-bar{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:12px;padding:12px 16px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}.file-input-wrapper{display:flex;align-items:center;gap:10px}.btn-upload{background:linear-gradient(135deg,#0284c7,#2563eb);color:#fff;padding:8px 16px;border-radius:8px;font-weight:600;font-size:13px;cursor:pointer;border:none;display:flex;align-items:center;gap:6px;transition:transform .15s ease,opacity .15s ease}.btn-upload:hover{opacity:.92;transform:translateY(-1px)}.btn-subtle{background:#ffffff0f;color:var(--text-main);border:1px solid var(--border-subtle);padding:8px 14px;border-radius:8px;font-size:13px;cursor:pointer;transition:background .15s ease}.btn-subtle:hover{background:#ffffff1f}.meta-pill{font-size:12px;color:var(--text-muted);background:#00000040;padding:6px 10px;border-radius:6px;border:1px solid var(--border-subtle)}.metrics-hud{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}.metric-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:10px;padding:10px 14px;display:flex;flex-direction:column;gap:4px}.metric-card .label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.metric-card .val{font-size:20px;font-weight:800;letter-spacing:-.02em}.metric-card.accent-green .val{color:var(--accent-green)}.metric-card.accent-cyan .val{color:var(--accent-cyan)}.metric-card.accent-yellow .val{color:var(--accent-yellow)}.grid-workspace{display:grid;grid-template-columns:1fr;gap:14px}@media (min-width: 900px){.grid-workspace{grid-template-columns:1.1fr .9fr}}.panel-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.panel-header{padding:10px 14px;background:#0003;border-bottom:1px solid var(--border-subtle);display:flex;justify-content:space-between;align-items:center}.panel-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.video-wrapper{position:relative;width:100%;aspect-ratio:16 / 9;background:#000;overflow:hidden}.video-wrapper video{width:100%;height:100%;object-fit:contain}.video-wrapper canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.playback-controls{padding:10px 14px;display:flex;align-items:center;gap:12px;background:#0000004d}.btn-play{background:var(--accent-cyan);color:#000;border:none;width:32px;height:32px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:900}.timeline-slider{flex:1;accent-color:var(--accent-yellow);cursor:pointer}.chart-viewport{width:100%;height:220px}.court-viewport{width:100%;height:260px}.three-viewport{width:100%;height:260px;position:relative}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;display:flex;align-items:center;justify-content:center;padding:16px}.modal-overlay.hidden{display:none}.modal-dialog{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:14px;max-width:900px;width:100%;overflow:hidden;display:flex;flex-direction:column}.calib-canvas{width:100%;aspect-ratio:16 / 9;background:#000;cursor:crosshair}