/** ============ 產品品項 ============ */

.product-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.3s;
}

.product-item:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.product-info {
    flex: 1;
}

.product-name {
    font-weight: 600;
    color: #333;
    font-size: 16px;
}

.product-price {
    color: #667eea;
    font-weight: 700;
    font-size: 15px;
    margin-top: 5px;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.qty-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn.minus {
    background: #f0f0f0;
    color: #666;
}

.qty-btn.minus:hover:not(:disabled) {
    background: #e0e0e0;
}

.qty-btn.minus:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.qty-btn.plus {
    background: #667eea;
    color: white;
}

.qty-btn.plus:hover {
    background: #5568d3;
}

.qty-display {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    min-width: 30px;
    text-align: center;
}

/** ============ 購物車 ============ */

.cart-section {
    background: #f8f9ff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
}

.cart-empty {
    text-align: center;
    color: #999;
    padding: 20px;
    font-size: 14px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

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

.cart-item-name {
    font-size: 15px;
    color: #333;
}

.cart-item-qty {
    font-size: 14px;
    color: #666;
    background: #e0e0e0;
    padding: 4px 10px;
    border-radius: 20px;
    margin: 0 10px;
}

.cart-item-price {
    font-weight: 600;
    color: #667eea;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 2px solid #667eea;
}

.cart-total-label {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.cart-total-amount {
    font-size: 22px;
    font-weight: 700;
    color: #667eea;
}

/** ============ 模式切換 ============ */

.mode-switch {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.mode-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    background: white;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.mode-btn:hover {
    border-color: #667eea;
}

.mode-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/** ============ 取貨時間選項 ============ */

.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 15px;
}

.option-btn {
    padding: 15px 10px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
    font-size: 14px;
}

.option-btn:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.option-btn.selected {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.option-btn small {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    opacity: 0.8;
}

/** ============ 送出按鈕 ============ */

.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 20px;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

/** ============ 寄杯選項（已不再直接使用，保留以防需用） ============ */

.gift-cup-option {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.gift-cup-option:hover {
    background: #ffe8a1;
}

.gift-cup-option.selected {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

.gift-cup-name {
    font-weight: 600;
    font-size: 16px;
}

.gift-cup-desc {
    font-size: 13px;
    margin-top: 5px;
    opacity: 0.9;
}

/** ============ 彈窗 ============ */

.modal-hidden {
    display: none;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    max-width: 90%;
    width: 400px;
    z-index: 10000;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

.modal-header h2 {
    text-align: center;
    color: #667eea;
    font-size: 24px;
    margin-bottom: 20px;
}

.modal-body {
    margin-bottom: 20px;
}

.modal-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.modal-btn-primary,
.modal-btn-secondary {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.modal-btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.modal-btn-secondary {
    background: #f0f0f0;
    color: #666;
}

.modal-btn-secondary:hover {
    background: #e0e0e0;
}

/** ============ 加購數量按鈕 ============ */

.upsell-qty-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upsell-qty-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.upsell-qty-btn:not(:disabled) {
    background: #667eea;
    color: white;
}

.upsell-qty-btn:not(:disabled):hover {
    background: #5568d3;
}

.upsell-qty-display {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    min-width: 24px;
    text-align: center;
}