body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            font-family: 'Vazirmatn', sans-serif;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 2rem 0;
        }
        .register-card {
            background: white;
            border-radius: 1.5rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
            padding: 3rem;
            max-width: 650px;
            margin: auto;
        }
        .register-title {
            font-weight: 700;
            color: #2d1b69;
            margin-bottom: 2rem;
            font-size: 1.9rem;
        }
        .form-control, .form-select {
            border-radius: 0.75rem;
            padding: 0.75rem 1rem;
            border: 1.5px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        .form-control:focus, .form-select:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
        }
        .btn-register {
            background: linear-gradient(to right, #667eea, #764ba2);
            border: none;
            border-radius: 0.75rem;
            padding: 0.8rem;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
        }
        .btn-register:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }
        .section-title {
            font-weight: 600;
            color: #4c1d95;
            font-size: 1.1rem;
            margin: 1.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e0e7ff;
        }
        .terms-link {
            color: #667eea;
            text-decoration: underline;
            font-weight: 500;
        }
        .terms-link:hover {
            color: #764ba2;
        }
        .back-link {
            color: #667eea;
            text-decoration: none;
        }
        .back-link:hover {
            color: #764ba2;
        }
        .invalid-feedback {
            font-size: 0.875rem;
        }