.checkout-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
}

.checkout-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #e0e0e0;
}

.checkout-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.checkout-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-section {
    margin-bottom: 2.5rem;
}

.form-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.85rem;
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: auto;
    cursor: pointer;
}

.total-section {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.total-section h3 {
    border: none;
    margin-bottom: 1rem;
}

.total-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

.alert-info {
    background: #eef;
    color: #33c;
    border: 1px solid #ccf;
}

/* Opções de Pagamento */
.payment-options {
    flex-direction: column;
    gap: 1rem;
}

.payment-option {
    display: flex;
    align-items: flex-start;
    padding: 1.25rem;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fff;
}

.payment-option:hover {
    border-color: #E91E8C;
    background: #fff5fb;
}

.payment-option input[type="radio"] {
    margin-top: 4px;
    margin-right: 12px;
    width: 18px;
    height: 18px;
    accent-color: #E91E8C;
}

.payment-option input[type="radio"]:checked + .payment-label {
    color: #E91E8C;
}

.payment-option:has(input:checked) {
    border-color: #E91E8C;
    background: #fff5fb;
    box-shadow: 0 4px 15px rgba(233, 30, 140, 0.15);
}

.payment-label {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.payment-label strong {
    font-size: 1.1rem;
    color: #333;
}

.payment-label small {
    color: #666;
    font-size: 0.9rem;
}

.discount-badge {
    color: #28a745 !important;
    font-weight: 600;
    background: #e8f5e9;
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
}

.valor-desconto {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    background: #f8f9fa;
}

/* Responsivo */
@media (max-width: 768px) {
    .checkout-container {
        padding: 15px;
        margin: 20px auto;
    }
    
    .checkout-form {
        padding: 1.5rem;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 1rem;
    }
    
    .total-value {
        font-size: 2rem;
    }
    
    .payment-option {
        padding: 1rem;
    }
}