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input.error{border-color:#ef4444}.error-text{color:#ef4444;font-size:13px;margin-top:6px;display:block}.subtitle{color:#64748b;margin-bottom:24px;font-size:14px}.success-icon{width:80px;height:80px;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;font-size:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;margin-bottom:24px;animation:scaleIn .5s ease}@keyframes scaleIn{0%{transform:scale(0)}to{transform:scale(1)}}.thank-you-page h1{font-size:28px;margin-bottom:8px}.thank-you-page .subtitle{font-size:16px;color:#64748b;margin-bottom:24px}.promo-block{background:linear-gradient(135deg,#f1f5f9,#e2e8f0);padding:20px 24px;border-radius:16px;margin:24px 0;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px}.promo-label{font-weight:500;color:#475569;font-size:14px}.promo-code{font-size:24px;font-weight:700;color:#0f172a;letter-spacing:3px;background:#fff;padding:8px 16px;border-radius:8px}.instructions{margin:24px 0;text-align:left;background:#fff;padding:20px;border-radius:12px}.instructions li{margin-bottom:12px;color:#334155}.btn-register{font-size:18px;padding:16px;width:100%}.support-text a{color:#3b82f6;text-decoration:none;font-weight:500}.support-text a:hover{text-decoration:underline}.bonus-block{margin-top:32px;padding-top:24px;border-top:1px solid #e2e8f0}.btn-youtube{background:#dc2626;color:#fff;padding:10px 24px}.btn-youtube:hover{background:#b91c1c;transform:translateY(-1px)}.progress-container{display:flex;align-items:center;gap:12px;margin-bottom:24px;padding:0 16px}.progress-bar{flex:1;height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:#3b82f6;border-radius:4px;transition:width .3s ease}.progress-text{font-size:14px;font-weight:500;color:#64748b;min-width:40px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f8fafc;color:#1e293b;line-height:1.6}.quiz-container{max-width:500px;margin:0 auto;min-height:100vh;padding:20px;display:flex;flex-direction:column}.page-content{flex:1;display:flex;flex-direction:column}.page-content.loading{opacity:.6;pointer-events:none}.error-message{background:#fee2e2;color:#991b1b;padding:12px 16px;border-radius:8px;margin-bottom:16px;text-align:center}.loading-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#ffffffe6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100}.spinner{width:40px;height:40px;border:4px solid #e2e8f0;border-top-color:#3b82f6;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:8px;font-family:inherit;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:#3b82f6;color:#fff}.btn-primary:hover:not(:disabled){background:#2563eb}.btn-secondary{background:#e2e8f0;color:#475569}.btn-secondary:hover{background:#cbd5e1}.btn-copy{background:#f1f5f9;color:#475569;margin-left:8px}.btn-copy:hover{background:#e2e8f0}.btn-register{width:100%;margin-top:16px}.btn-youtube{background:#dc2626;color:#fff}.btn-youtube:hover{background:#b91c1c}.page{display:flex;flex-direction:column;align-items:center;text-align:center;padding:40px 20px;flex:1}.page h1,.page h2{font-size:24px;font-weight:600;margin-bottom:12px;color:#0f172a}.page .subtitle{font-size:16px;color:#64748b;margin-bottom:32px}.logo-container{margin-bottom:32px}.question-page{text-align:left;width:100%}.question-page h2{text-align:center;margin-bottom:24px}.options{width:100%;margin-bottom:24px}.option{display:flex;align-items:center;padding:12px 16px;margin-bottom:8px;background:#fff;border-radius:8px;cursor:pointer;border:2px solid #e2e8f0;transition:all .2s}.option:hover{border-color:#3b82f6}.option input[type=radio]{display:none}.radio-custom{width:20px;height:20px;border:2px solid #94a3b8;border-radius:50%;margin-right:12px;position:relative}.option input[type=radio]:checked+.radio-custom{border-color:#3b82f6}.option input[type=radio]:checked+.radio-custom:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:10px;height:10px;background:#3b82f6;border-radius:50%}.inline-input{margin-left:8px;padding:4px 8px;border:1px solid #cbd5e1;border-radius:4px;font-size:14px}.textarea-container{width:100%;margin-bottom:8px}.textarea-container textarea{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:8px;font-family:inherit;font-size:16px;resize:vertical}.char-counter{text-align:right;font-size:12px;color:#94a3b8;margin-top:4px}.buttons{display:flex;gap:12px;width:100%}.buttons .btn{flex:1}.thank-you-page{justify-content:center}.success-icon{width:80px;height:80px;background:#22c55e;color:#fff;font-size:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;margin-bottom:24px}.promo-block{background:#f1f5f9;padding:20px;border-radius:12px;margin:24px 0;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px}.promo-label{font-weight:500;color:#475569}.promo-code{font-size:20px;font-weight:700;color:#0f172a;letter-spacing:2px}.instructions{margin:24px 0;text-align:left}.instructions ol{margin-left:20px}.instructions li{margin-bottom:8px}.support-text{margin-top:24px;font-size:14px;color:#64748b}.support-text a{color:#3b82f6;text-decoration:none}.bonus-block{margin-top:24px;padding-top:24px;border-top:1px solid #e2e8f0}.bonus-block p{margin-bottom:12px;font-size:14px;color:#64748b}@media (max-width: 600px){.quiz-container{padding:16px}.page{padding:20px 12px}.page h1{font-size:20px}.promo-block{flex-direction:column}}