*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0a0e1a;--card:#141929;--card2:#1a2035;--border:#1e2d45;--cyan:#00d4ff;--purple:#7c3aed;--green:#10b981;--amber:#f59e0b;--red:#ef4444;--text:#e2e8f0;--muted:#64748b;--radius:12px}html,body{height:100%}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.app-wrapper{max-width:900px;margin:0 auto;padding:0 16px 40px}.app-header{text-align:center;border-bottom:1px solid var(--border);margin-bottom:28px;padding:28px 0 20px}.app-title{background:linear-gradient(135deg, var(--cyan), var(--purple));-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;background-clip:text;font-size:1.8rem;font-weight:700}.app-subtitle{color:var(--muted);margin-top:4px;font-size:.875rem}.step-indicator{justify-content:center;align-items:center;gap:0;margin-bottom:32px;display:flex}.step-dot{background:var(--card2);border:2px solid var(--border);width:32px;height:32px;color:var(--muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.75rem;font-weight:600;transition:all .3s;display:flex}.step-dot.active{background:var(--cyan);border-color:var(--cyan);color:#000;box-shadow:0 0 12px #00d4ff55}.step-dot.done{background:var(--green);border-color:var(--green);color:#fff}.step-connector{background:var(--border);flex-shrink:0;width:48px;height:2px;transition:background .3s}.step-label{color:var(--muted);text-align:center;margin-top:4px;font-size:.7rem}.step-panel{animation:.3s fadeIn;display:none}.step-panel.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;padding:24px}.card-title{color:var(--cyan);align-items:center;gap:8px;margin-bottom:18px;font-size:1.05rem;font-weight:600;display:flex}.card-title .icon{font-size:1.1rem}.form-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;display:grid}.form-group{flex-direction:column;gap:5px;display:flex}.form-group.full{grid-column:1/-1}label{color:var(--muted);font-size:.8rem;font-weight:500}input,select,textarea{background:var(--card2);border:1px solid var(--border);color:var(--text);border-radius:8px;width:100%;padding:10px 12px;font-size:.9rem;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--cyan);outline:none;box-shadow:0 0 0 2px #00d4ff22}textarea{resize:vertical;min-height:70px}.btn{cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:6px;padding:11px 22px;font-size:.9rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg, var(--cyan), #09b);color:#000}.btn-primary:hover:not(:disabled){filter:brightness(1.15);transform:translateY(-1px)}.btn-secondary{background:var(--card2);border:1px solid var(--border);color:var(--text)}.btn-secondary:hover:not(:disabled){border-color:var(--cyan);color:var(--cyan)}.btn-danger{border:1px solid var(--red);color:var(--red);background:#2d0a0a}.btn-danger:hover:not(:disabled){background:#3d1010}.btn-outline{border:1px solid var(--purple);color:var(--purple);background:0 0}.btn-outline:hover:not(:disabled){background:#a855f71a}.btn-green{background:linear-gradient(135deg, var(--green), #0d9068);color:#fff}.btn-green:hover:not(:disabled){filter:brightness(1.1)}.btn-purple{background:linear-gradient(135deg, var(--purple), #5b21b6);color:#fff}.btn-purple:hover:not(:disabled){filter:brightness(1.1)}.btn-row{flex-wrap:wrap;gap:10px;margin-top:20px;display:flex}.camera-container{border-radius:var(--radius);aspect-ratio:4/3;background:#000;justify-content:center;align-items:center;width:100%;max-height:400px;margin:0 auto;display:flex;position:relative;overflow:hidden}#video{object-fit:cover;width:100%;height:100%;transform:scaleX(-1)}#canvas{display:none}#overlayCanvas{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0;transform:scaleX(-1)}#signalCanvas{background:#0a0e1a;border-radius:8px;width:100%;height:80px;display:block}.lighting-bar-wrap{background:var(--card2);border-radius:4px;height:6px;margin-top:6px;overflow:hidden}#lightingBar{background:var(--green);border-radius:4px;width:50%;height:100%;transition:width .3s,background .3s}.lighting-status{margin-top:6px;font-size:.85rem}.lighting-status.good{color:var(--green)}.lighting-status.warn{color:var(--amber)}.lighting-status.bad{color:var(--red)}.rec-header{align-items:center;gap:10px;margin-bottom:12px;display:flex}.rec-dot{background:var(--red);border-radius:50%;width:12px;height:12px;animation:1s infinite blink}@keyframes blink{0%,to{opacity:1}50%{opacity:.2}}.rec-countdown{color:var(--cyan);font-family:monospace;font-size:2rem;font-weight:700}.progress-bar-wrap{background:var(--card2);border-radius:6px;height:10px;margin-bottom:10px;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--cyan), var(--purple));border-radius:6px;width:0%;height:100%;transition:width .2s}.live-beat{color:var(--amber);margin-bottom:8px;font-size:.9rem;font-weight:600}#liveVitalsPanel{background:#00d4ff0a;border:1px solid #00d4ff21;border-radius:10px;margin:10px 0;padding:10px 12px}.live-panel-title{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;margin-bottom:8px;font-size:.72rem;font-weight:600}.live-metrics-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}@media (width<=500px){.live-metrics-grid{grid-template-columns:repeat(2,1fr)}}.live-metric-cell{text-align:center;background:#ffffff08;border-radius:6px;flex-direction:column;align-items:center;padding:7px 4px;display:flex}.live-metric-val{color:var(--cyan);justify-content:center;align-items:center;width:100%;min-height:1.6em;font-family:SF Mono,Fira Code,monospace;font-size:1.1rem;font-weight:700;transition:color .5s;display:flex}.live-metric-lbl{color:var(--muted);text-align:center;justify-content:center;align-items:flex-start;min-height:2.4em;margin-top:3px;font-size:.62rem;line-height:1.4;display:flex}.live-val-flash{color:#10b981!important}.processing-wrap{text-align:center;padding:40px 20px}.processing-spinner{border:3px solid var(--border);border-top-color:var(--cyan);border-radius:50%;width:60px;height:60px;margin:0 auto 20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.processing-status{color:var(--muted);margin-top:12px;font-size:.95rem}.process-progress-wrap{background:var(--card2);border-radius:4px;width:60%;height:6px;margin:16px auto 0;overflow:hidden}#processProgress{background:linear-gradient(90deg, var(--cyan), var(--purple));border-radius:4px;width:0%;height:100%;transition:width .3s}.results-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px;display:flex}.results-title{color:var(--cyan);font-size:1.3rem;font-weight:700}.results-time{color:var(--muted);font-size:.8rem}.metrics-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-bottom:16px;display:grid}.metric-card{background:var(--card2);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:4px;padding:14px 16px;display:flex}.metric-label{color:var(--muted);font-size:.75rem;font-weight:500}.metric-value{font-family:monospace;font-size:1.5rem;font-weight:700}.metric-value.good{color:var(--green)}.metric-value.warn{color:var(--amber)}.metric-interp{color:var(--muted);margin-top:2px;font-size:.7rem}.stress-section{margin-bottom:4px}.stress-bar-wrap{background:var(--card2);border-radius:6px;height:8px;margin:8px 0;overflow:hidden}#stressBar{border-radius:6px;height:100%;transition:width .5s}.stress-score{font-family:monospace;font-size:1.4rem;font-weight:700}.stress-label{color:var(--muted);font-size:.85rem}.chart-wrap{background:#0d1117;border-radius:8px;margin-top:12px;overflow:hidden}.chart-wrap canvas{display:block;width:100%!important;height:120px!important}.chart-title{color:var(--muted);padding:8px 12px 4px;font-size:.8rem}.exp-badge{color:var(--purple);border:1px solid var(--purple);background:#3d1f7a33;border-radius:99px;margin-left:8px;padding:2px 7px;font-size:.7rem}.exp-note{color:var(--muted);margin-top:3px;font-size:.72rem;font-style:italic}#alertBox{border:1px solid var(--red);color:var(--red);z-index:999;text-align:center;background:#2d1515;border-radius:8px;max-width:80%;padding:10px 20px;font-size:.9rem;display:none;position:fixed;top:20px;left:50%;transform:translate(-50%)}.section-label{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:20px 0 10px;padding-left:2px;font-size:.75rem}hr.divider{border:none;border-top:1px solid var(--border);margin:18px 0}.disclaimer{color:#aaa070;background:#1a1a00;border:1px solid #550;border-radius:8px;margin-top:16px;padding:10px 14px;font-size:.78rem;line-height:1.6}input[type=range]{-webkit-appearance:none;background:var(--border);background:linear-gradient(to right, var(--cyan), var(--border));cursor:pointer;border:none;border-radius:2px;height:4px;padding:0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--cyan);cursor:pointer;border:2px solid #000;border-radius:50%;width:16px;height:16px}.range-row{align-items:center;gap:12px;margin-top:6px;display:flex}.range-row label{flex-shrink:0;width:60px}.range-row input[type=range]{flex:1}#recDurationVal{text-align:right;width:36px;color:var(--cyan);font-weight:600}@media (width<=600px){.app-title{font-size:1.4rem}.form-grid{grid-template-columns:1fr 1fr}.metrics-grid{grid-template-columns:repeat(2,1fr)}.btn-row{flex-direction:column}.btn{justify-content:center}.step-connector{width:24px}}@media (width<=400px){.form-grid{grid-template-columns:1fr}.step-connector{width:12px}}.align-tip{color:#60a8c8;background:#001a2a;border:1px solid #057;border-radius:8px;margin-top:10px;padding:10px 14px;font-size:.82rem;line-height:1.6}