.account-settings{max-width:800px;margin:0 auto;padding:20px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.settings-header{text-align:center;margin-bottom:40px;padding-bottom:20px;border-bottom:2px solid #e0e0e0}.settings-header h1{color:#2c3e50;font-size:2.5rem;margin-bottom:10px;font-weight:700}.settings-header p{color:#666;font-size:1.1rem;margin-bottom:20px}.error,.loading{text-align:center;padding:60px 20px}.loading .spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top-color:#3498db;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.settings-form{background:#fff;border-radius:12px;box-shadow:0 4px 20px #0000001a;overflow:hidden}.form-section{padding:30px;border-bottom:1px solid #f0f0f0}.form-section:last-child{border-bottom:none}.form-section h2{color:#2c3e50;font-size:1.5rem;margin-bottom:8px;font-weight:600}.section-description{color:#666;font-size:.9rem;margin-bottom:20px;font-style:italic}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#2c3e50;font-size:.95rem}.form-input{width:100%;padding:12px 16px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px;transition:all .2s ease;background:#fafafa}.form-input:focus{outline:none;border-color:#3498db;background:#fff;box-shadow:0 0 0 3px #3498db1a}.form-input.error{border-color:#e74c3c;background:#fdf2f2}.form-input.error:focus{border-color:#e74c3c;box-shadow:0 0 0 3px #e74c3c1a}.error-text{color:#e74c3c;font-size:.85rem;margin-top:5px;display:block;font-weight:500}.form-actions{padding:30px;background:#f8f9fa;display:flex;gap:15px;justify-content:flex-end}.btn-primary,.btn-secondary{padding:12px 24px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease;text-decoration:none;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:#3498db;color:#fff}.btn-primary:hover:not(:disabled){background:#2980b9;transform:translateY(-1px)}.btn-primary:disabled{background:#bdc3c7;cursor:not-allowed;transform:none}.btn-secondary{background:#6c757d;color:#fff}.btn-secondary:hover:not(:disabled){background:#5a6268;transform:translateY(-1px)}.btn-secondary:disabled{background:#bdc3c7;cursor:not-allowed;transform:none}.message{padding:16px;border-radius:8px;margin-bottom:20px;font-weight:500;text-align:center}.message.success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.message.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}@media (max-width:768px){.account-settings{padding:15px}.settings-header h1{font-size:2rem}.form-section{padding:20px}.form-actions{padding:20px;flex-direction:column}.btn-primary,.btn-secondary{width:100%;justify-content:center}}