:root{--color-primary: #6c5ce7;--color-primary-dark: #5849c2;--color-primary-light: #a29bfe;--color-secondary: #fd79a8;--color-accent: #00cec9;--color-warning: #fdcb6e;--color-danger: #d63031;--color-success: #00b894;--answer-red: #e74c3c;--answer-blue: #3498db;--answer-yellow: #f1c40f;--answer-green: #2ecc71;--bg-primary: #ffffff;--bg-secondary: #f8f9fc;--bg-card: #ffffff;--bg-hover: #f0f0f8;--text-primary: #1a1a2e;--text-secondary: #6b7280;--text-muted: #9ca3af;--border-color: #e5e7eb;--shadow: 0 2px 8px rgba(0,0,0,.08);--shadow-lg: 0 8px 24px rgba(0,0,0,.12);--radius: 12px;--radius-sm: 8px;--radius-lg: 20px;--max-width: 1200px;--transition: .2s ease}body.dark-mode{--bg-primary: #0f0f1a;--bg-secondary: #16162a;--bg-card: #1e1e35;--bg-hover: #252540;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border-color: #2d2d4e;--shadow: 0 2px 8px rgba(0,0,0,.3);--shadow-lg: 0 8px 24px rgba(0,0,0,.4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;transition:background-color var(--transition),color var(--transition)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit;font-size:1rem}img{max-width:100%;display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.5rem;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;border:none;transition:all var(--transition);text-decoration:none;white-space:nowrap;cursor:pointer}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn--secondary{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn--secondary:hover{background:var(--color-primary);color:#fff}.btn--ghost{background:transparent;color:var(--text-primary)}.btn--ghost:hover{background:var(--bg-hover)}.btn--danger{background:var(--color-danger);color:#fff}.btn--danger:hover{background:#b52828}.btn--success{background:var(--color-success);color:#fff}.btn--success:hover{background:#009d7e}.btn--lg{padding:.9rem 2rem;font-size:1.1rem;border-radius:var(--radius)}.btn--sm{padding:.4rem 1rem;font-size:.875rem}.btn--ai{background:linear-gradient(135deg,#6c5ce7,#a29bfe);color:#fff;border:none;font-weight:700}.btn--ai:hover{opacity:.9;transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn--ai.active{outline:2px solid #6c5ce7;outline-offset:2px}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:box-shadow var(--transition)}.card:hover{box-shadow:var(--shadow-lg)}.form-group{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.25rem}.form-group label{font-weight:600;font-size:.9rem;color:var(--text-secondary)}.form-group input,.form-group textarea,.form-group select{padding:.75rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-primary);transition:border-color var(--transition),box-shadow var(--transition)}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6c5ce726}.form-group input.error,.form-group textarea.error,.form-group select.error{border-color:var(--color-danger)}.form-group input::placeholder,.form-group textarea::placeholder,.form-group select::placeholder{color:var(--text-muted)}.form-group textarea{resize:vertical;min-height:100px}.form-group .error-text{font-size:.82rem;color:var(--color-danger)}.badge{display:inline-block;padding:.25rem .65rem;border-radius:100px;font-size:.8rem;font-weight:600}.badge--primary{background:#6c5ce726;color:var(--color-primary)}.badge--success{background:#00b89426;color:var(--color-success)}.badge--warning{background:#fdcb6e40;color:#d68910}.badge--danger{background:#d6303126;color:var(--color-danger)}.page-title{font-size:2rem;font-weight:800;color:var(--text-primary);margin-bottom:.5rem}.page-subtitle{color:var(--text-secondary);margin-bottom:2rem}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.spinner{display:inline-block;width:24px;height:24px;border:3px solid var(--border-color);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:.85rem 1.25rem;border-radius:var(--radius-sm);margin-bottom:1rem;font-size:.95rem}.alert--error{background:#d630311f;color:var(--color-danger);border-left:4px solid var(--color-danger)}.alert--success{background:#00b8941f;color:var(--color-success);border-left:4px solid var(--color-success)}.alert--info{background:#6c5ce71f;color:var(--color-primary);border-left:4px solid var(--color-primary)}@media(max-width:768px){.page-title{font-size:1.5rem}.container{padding:0 1rem}}