/* 結帳頁面樣式 */
.page-title {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--text-color);
}

/* 結帳步驟 */
.cart-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e0e0e0;
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 10px;
}

.step.active .step-number {
    background-color: var(--primary-color);
    color: white;
}

.step-text {
    font-size: 14px;
    color: var(--light-text);
}

.step.active .step-text {
    color: var(--primary-color);
    font-weight: 600;
}

.step-line {
    flex: 1;
    height: 2px;
    background-color: #e0e0e0;
    margin: 0 15px;
    margin-bottom: 20px;
}

/* 結帳內容 */
.checkout-container {
    margin-bottom: 50px;
}

.checkout-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

/* 結帳表單 */
.checkout-form {
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
}

.form-section {
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section h2 {
    font-size: 18px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    color: var(--text-color);
}

.form-section h2 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color);
}

.required {
    color: #e74c3c;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

/* 配送方式 */
.shipping-options,
.payment-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.shipping-option,
.payment-option {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    transition: var(--transition);
}

.shipping-option:hover,
.payment-option:hover {
    border-color: var(--primary-color);
}

.shipping-option input[type="radio"],
.payment-option input[type="radio"] {
    margin-right: 10px;
}

.shipping-option label,
.payment-option label {
    font-weight: 600;
    color: var(--text-color);
}

.shipping-description,
.payment-description {
    margin-top: 10px;
    padding-left: 25px;
    color: var(--light-text);
    font-size: 14px;
}

.shipping-description p,
.payment-description p {
    margin-bottom: 5px;
}

/* 表單操作 */
.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

/* 訂單摘要 */
.order-summary {
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
    position: sticky;
    top: 20px;
    align-self: flex-start;
}

.order-summary h2 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.order-items {
    margin-bottom: 20px;
    max-height: 300px;
    overflow-y: auto;
}

.order-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.order-item:last-child {
    border-bottom: none;
}

.order-item-image {
    width: 60px;
    height: 60px;
    border-radius: 4px;
    overflow: hidden;
}

.order-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.order-item-details {
    flex: 1;
}

.order-item-name {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-color);
}

.order-item-options {
    font-size: 12px;
    color: var(--light-text);
    margin-bottom: 5px;
}

.order-item-price {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.order-totals {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    color: var(--text-color);
}

.discount {
    color: #e74c3c;
}

.final-total {
    font-size: 18px;
    font-weight: 600;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.order-notice {
    margin-top: 20px;
    font-size: 14px;
    color: var(--light-text);
}

.order-notice p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.order-notice i {
    margin-right: 10px;
    color: var(--primary-color);
}

/* 響應式設計 */
@media (max-width: 992px) {
    .checkout-content {
        grid-template-columns: 1fr;
    }
    
    .order-summary {
        position: static;
        margin-top: 30px;
    }
}

@media (max-width: 768px) {
    .form-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .form-actions .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .cart-steps {
        flex-direction: column;
        gap: 20px;
    }
    
    .step-line {
        width: 2px;
        height: 20px;
        margin: 0;
    }
    
    .checkout-form {
        padding: 20px;
    }
    
    .order-summary {
        padding: 20px;
    }
}