:root{--primary-color:#00f2fe;--secondary-color:#4facfe;--success-color:#10b981;--warning-color:#f59e0b;--bg-dark:#0f172a;--card-bg:rgba(30, 41, 59, 0.7);--border-color:rgba(255, 255, 255, 0.1);--text-main:#f1f5f9;--text-sub:#94a3b8}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:linear-gradient(135deg,#0f172a 0,#1e293b 100%);color:var(--text-main);margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center}.header{width:100%;padding:20px 40px;display:flex;justify-content:space-between;align-items:center;background:rgba(15,23,42,.8);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);position:fixed;top:0;z-index:100}.header h1{margin:0;font-size:24px;background:linear-gradient(to right,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-weight:800;letter-spacing:1px}.btn-start{background:linear-gradient(90deg,var(--secondary-color),var(--primary-color));border:none;padding:10px 24px;border-radius:30px;color:#0f172a;font-weight:700;font-size:14px;cursor:pointer;transition:all .3s ease;box-shadow:0 0 15px rgba(79,172,254,.4);text-transform:uppercase;letter-spacing:1px}.btn-start:hover{transform:translateY(-2px);box-shadow:0 0 25px rgba(0,242,254,.6)}.btn-start:disabled{background:#334155;color:#64748b;cursor:not-allowed;transform:none;box-shadow:none}.main-container{margin-top:100px;width:100%;max-width:1200px;padding:20px;display:flex;flex-direction:column;align-items:center}.status-bar{margin-bottom:20px;font-size:16px;color:var(--text-sub);display:flex;align-items:center;gap:10px;background:var(--card-bg);padding:8px 16px;border-radius:20px;border:1px solid var(--border-color)}.status-dot{width:8px;height:8px;background-color:#64748b;border-radius:50%;transition:background-color .3s}.status-dot.active{background-color:var(--success-color);box-shadow:0 0 10px var(--success-color)}.status-dot.recording{background-color:#ef4444;animation:pulse 1s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.5}100%{opacity:1}}.video-wrapper{position:relative;width:100%;max-width:600px;aspect-ratio:4/3;background:#000;border-radius:16px;overflow:hidden;border:2px solid #334155;box-shadow:0 20px 25px -5px rgba(0,0,0,.5);margin-bottom:20px}video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1);display:block}.guide-panel{width:100%;max-width:600px;padding:15px;background:var(--card-bg);border-radius:12px;border:1px solid var(--border-color);margin-bottom:40px;text-align:center}.guide-panel p{margin:0;font-size:1.1em;font-weight:500}.guide-instruction{color:var(--primary-color);font-size:1.3em;font-weight:700;margin-top:5px}.face-guide-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center;pointer-events:none;z-index:10;background:radial-gradient(ellipse 60% 75% at 50% 48%,transparent 40%,rgba(15,23,42,.7) 100%)}.face-outline-svg{width:50%;max-height:85%;height:auto;color:var(--primary-color);opacity:.7;filter:drop-shadow(0 0 8px rgba(0, 242, 254, .6));animation:breathe-guide 4s ease-in-out infinite}.face-outline-svg.ready{color:var(--success-color);filter:drop-shadow(0 0 8px rgba(16, 185, 129, .6));opacity:1}.face-outline-svg.error{color:#ef4444;filter:drop-shadow(0 0 8px rgba(239, 68, 68, .6));opacity:1}@keyframes breathe-guide{0%,100%{opacity:.5;transform:scale(.98)}50%{opacity:.8;transform:scale(1.01)}}.results-header{width:100%;align-items:end;margin-bottom:15px;border-bottom:1px solid var(--border-color);padding-bottom:10px;text-align:center}.progress-container{display:flex;align-items:center;justify-content:center;width:100%;margin-top:10px}.progress-bar{width:80%;height:20px;background-color:#e0e0e0;border-radius:10px;overflow:hidden;margin-right:10px}.progress-fill{height:100%;width:0%;background-color:#4caf50;transition:width .4s ease-in-out}.progress-text{font-weight:700;color:#333;min-width:30px;text-align:left}.progress-text{color:var(--secondary-color);font-family:monospace;font-size:1.2em}.results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:12px;width:100%}.img-box{aspect-ratio:1/1;background:rgba(255,255,255,.03);border:1px dashed rgba(255,255,255,.2);border-radius:8px;display:flex;justify-content:center;position:relative;overflow:hidden;transition:all .3s}#captureCanvas{display:none}@media (max-width:600px){.header{padding:15px 20px}.header h1{font-size:18px}.btn-start{padding:8px 16px;font-size:12px}.results-grid{grid-template-columns:repeat(4,1fr)}.face-outline-svg{width:50%;max-height:80%}.guide-instruction{font-size:1.1em}}#loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);z-index:9999;display:flex;justify-content:center;align-items:center}.hidden{display:none!important}.loader{border:8px solid #f3f3f3;border-top:8px solid #3498db;border-radius:50%;width:60px;height:60px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}#account-modal-overlay{--primary-color:#4CAF50;--overlay-color:#0f172a;--background-color:#1f2937;--text-color:#f3f4f6;--border-color:#374151;--box-shadow:0 10px 25px rgba(0, 0, 0, 0.5);position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--overlay-color);display:flex;justify-content:center;align-items:center;z-index:10000;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}#account-modal-overlay .modal-content{--primary-color:#00f2fe;--text-color-dark:#1f2937;background-color:#2c384a;color:var(--text-color);padding:35px 45px;border-radius:12px;box-shadow:var(--box-shadow);width:90%;max-width:480px;border:1px solid #374151}#account-modal-overlay .modal-logo-container{text-align:center}#account-modal-overlay .modal-logo{max-width:100px;height:auto;border-radius:50%}#account-modal-overlay .modal-header{text-align:center;color:var(--primary-color);margin-bottom:30px;font-size:1.6rem;font-weight:700}#account-modal-overlay .form-group label{display:block;margin-bottom:8px;font-weight:600;font-size:.95rem;color:var(--text-color)}#account-modal-overlay input[type=text],#account-modal-overlay select{width:100%;padding:12px 15px;border:1px solid #4b5563;background-color:#1f2937;color:var(--text-color);border-radius:8px;font-size:1rem;box-sizing:border-box;transition:border-color .3s ease,box-shadow .3s ease;appearance:none;-webkit-appearance:none}#account-modal-overlay input[type=text]:focus,#account-modal-overlay select:focus{border-color:var(--primary-color);outline:0;box-shadow:0 0 0 3px rgba(0,242,254,.2),0 0 8px rgba(0,242,254,.5);background-color:#111827}#account-modal-overlay input::placeholder{color:#9ca3af}#account-modal-overlay .confirm-button{width:100%;padding:14px;background-color:var(--primary-color);color:var(--text-color-dark);border-radius:8px;font-weight:700;margin-top:20px;transition:background-color .3s,transform .1s}#account-modal-overlay .confirm-button:hover{background-color:#00c7d4}