/**
 * VYTRA Shop - 购物车样式
 * 支持：暗黑/亮色模式、移动端响应式
 */

/* ============================================
   主题变量（通过cart-drawer-overlay的class控制，与页面主题联动）
   ============================================ */
/* 暗黑模式（默认） */
.cart-theme-dark {
    --cart-bg: #1a1e2e;
    --cart-card-bg: rgba(30, 35, 60, 0.95);
    --cart-text: #f0f2ff;
    --cart-text-muted: #a0a8c0;
    --cart-accent: #b794f4;
    --cart-accent-hover: #9f7aea;
    --cart-border: #4a5270;
    --cart-danger: #e74c3c;
    --cart-success: #27ae60;
    --cart-gold: #d4af37;
    --cart-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --cart-overlay: rgba(0, 0, 0, 0.6);
}

/* 亮色模式 */
.cart-theme-light {
    --cart-bg: #f8faff;
    --cart-card-bg: rgba(255, 255, 255, 0.98);
    --cart-text: #14182b;
    --cart-text-muted: #6b7280;
    --cart-accent: #5f4b8b;
    --cart-accent-hover: #4a3a70;
    --cart-border: #e5e7eb;
    --cart-danger: #e74c3c;
    --cart-success: #27ae60;
    --cart-gold: #b8860b;
    --cart-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --cart-overlay: rgba(0, 0, 0, 0.4);
}

/* 兼容旧版：如果页面是body.light，购物车也使用亮色变量 */
body.light .cart-drawer-overlay {
    --cart-bg: #f8faff;
    --cart-card-bg: rgba(255, 255, 255, 0.98);
    --cart-text: #14182b;
    --cart-text-muted: #6b7280;
    --cart-accent: #5f4b8b;
    --cart-accent-hover: #4a3a70;
    --cart-border: #e5e7eb;
    --cart-gold: #b8860b;
    --cart-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --cart-overlay: rgba(0, 0, 0, 0.4);
}

/* ============================================
   悬浮购物车按钮
   ============================================ */
.cart-float-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9998;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--cart-accent), var(--cart-accent-hover));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(183, 148, 244, 0.4);
    transition: all 0.3s ease;
    user-select: none;
}

.cart-float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(183, 148, 244, 0.4);
}

.cart-float-btn:active {
    transform: scale(0.95);
}

.cart-float-btn .cart-icon {
    font-size: 1.4rem;
}

.cart-float-btn .cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    background: var(--cart-danger);
    color: #fff;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 700;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    border: 2px solid var(--cart-bg);
}

/* ============================================
   购物车遮罩层
   ============================================ */
.cart-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--cart-overlay);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.cart-drawer-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   购物车侧边栏
   ============================================ */
.cart-drawer {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    max-width: 90vw;
    height: 100%;
    background: var(--cart-card-bg);
    backdrop-filter: blur(20px);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
    border-left: 1px solid var(--cart-border);
}

.cart-drawer-overlay.active .cart-drawer {
    right: 0;
}

/* ============================================
   购物车头部
   ============================================ */
.cart-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--cart-border);
    background: linear-gradient(135deg, rgba(183, 148, 244, 0.1), transparent);
}

.cart-drawer-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cart-text);
    margin: 0;
}

.cart-close-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--cart-text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.cart-close-btn:hover {
    background: rgba(231, 76, 60, 0.1);
    color: var(--cart-danger);
    transform: rotate(90deg);
}

/* ============================================
   购物车内容区
   ============================================ */
.cart-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.cart-drawer-body::-webkit-scrollbar {
    width: 6px;
}

.cart-drawer-body::-webkit-scrollbar-track {
    background: transparent;
}

.cart-drawer-body::-webkit-scrollbar-thumb {
    background: var(--cart-border);
    border-radius: 3px;
}

/* ============================================
   购物车商品项
   ============================================ */
.cart-item {
    display: flex;
    gap: 0.8rem;
    padding: 0.8rem;
    margin-bottom: 0.8rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--cart-border);
    transition: all 0.2s ease;
}

body.light .cart-item {
    background: rgba(0, 0, 0, 0.02);
}

.cart-item:hover {
    border-color: var(--cart-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(183, 148, 244, 0.15);
}

.cart-item-image {
    width: 70px;
    height: 70px;
    min-width: 70px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--cart-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.cart-item-placeholder {
    font-size: 2rem;
}

.cart-item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.cart-item-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--cart-text);
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.cart-item-variant {
    font-size: 0.75rem;
    color: var(--cart-text-muted);
}

.cart-item-price {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--cart-gold);
}

.cart-item-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.3rem;
}

.cart-qty-control {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    background: var(--cart-bg);
    border-radius: 6px;
    padding: 2px;
    border: 1px solid var(--cart-border);
}

.cart-qty-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--cart-text);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    line-height: 1;
}

.cart-qty-btn:hover {
    background: var(--cart-accent);
    color: #fff;
}

.cart-qty-value {
    min-width: 24px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--cart-text);
}

.cart-remove-btn {
    border: none;
    background: transparent;
    color: var(--cart-text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.cart-remove-btn:hover {
    color: var(--cart-danger);
    background: rgba(231, 76, 60, 0.1);
}

.cart-item-subtotal {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--cart-text);
    white-space: nowrap;
    align-self: flex-start;
}

/* ============================================
   购物车底部
   ============================================ */
.cart-drawer-footer {
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--cart-border);
    background: linear-gradient(0deg, rgba(183, 148, 244, 0.05), transparent);
}

.cart-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--cart-text-muted);
}

.cart-total-label {
    font-weight: 500;
}

.cart-total-value {
    font-weight: 600;
}

.cart-free-shipping {
    color: var(--cart-success);
    font-weight: 700;
}

.cart-grand-total {
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px dashed var(--cart-border);
    font-size: 1.1rem;
    color: var(--cart-text);
}

.cart-grand-total .cart-total-label {
    font-weight: 700;
}

.cart-grand-total .cart-total-value {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--cart-gold);
}

/* ============================================
   PayPal按钮容器
   ============================================ */
.cart-paypal-container {
    margin-top: 1rem;
}

.cart-paypal-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--cart-text-muted);
    margin-bottom: 0.8rem;
}

#paypal-button-container {
    min-height: 48px;
}

/* ============================================
   空购物车
   ============================================ */
.cart-empty {
    text-align: center;
    padding: 3rem 1rem;
}

.cart-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.cart-empty-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--cart-text);
    margin-bottom: 0.5rem;
}

.cart-empty-desc {
    font-size: 0.9rem;
    color: var(--cart-text-muted);
    margin-bottom: 1.5rem;
}

.cart-continue-btn {
    padding: 0.7rem 2rem;
    background: linear-gradient(135deg, var(--cart-accent), var(--cart-accent-hover));
    color: #fff;
    border: none;
    border-radius: 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(183, 148, 244, 0.3);
}

.cart-continue-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(183, 148, 244, 0.4);
}

/* ============================================
   支付成功
   ============================================ */
.cart-success {
    text-align: center;
    padding: 2rem 1rem;
}

.cart-success-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: cart-bounce 0.6s ease;
}

@keyframes cart-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.cart-success-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--cart-success);
    margin-bottom: 0.5rem;
}

.cart-success-order-id {
    font-size: 0.8rem;
    color: var(--cart-text-muted);
    margin-bottom: 1rem;
    word-break: break-all;
}

.cart-success-desc {
    font-size: 0.9rem;
    color: var(--cart-text);
    margin-bottom: 0.3rem;
}

.cart-success-desc + .cart-success-desc {
    color: var(--cart-text-muted);
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   Toast提示
   ============================================ */
.cart-toast-container {
    position: fixed;
    top: 5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}

.cart-toast {
    padding: 0.7rem 1.5rem;
    background: var(--cart-success);
    color: #fff;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
    white-space: nowrap;
}

.cart-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   移动端响应式
   ============================================ */
@media (max-width: 768px) {
    .cart-float-btn {
        width: 56px;
        height: 56px;
        bottom: 1.2rem;
        right: 1.2rem;
        top: auto;
    }

    .cart-float-btn .cart-icon {
        font-size: 1.5rem;
    }

    .cart-float-btn .cart-badge {
        font-size: 0.75rem;
        min-width: 20px;
        height: 20px;
    }

    .cart-drawer {
        width: 100%;
        max-width: 100%;
        right: -100%;
    }

    .cart-drawer-header {
        padding: 1.2rem;
    }

    .cart-drawer-title {
        font-size: 1.2rem;
    }

    .cart-close-btn {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
    }

    .cart-drawer-body {
        padding: 1rem;
    }

    .cart-item {
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .cart-item-image {
        width: 70px;
        height: 70px;
        min-width: 70px;
    }

    .cart-item-name {
        font-size: 0.9rem;
    }

    .cart-item-variant {
        font-size: 0.75rem;
    }

    .cart-item-price {
        font-size: 0.95rem;
    }

    /* 数量控制按钮增大，方便手机点击 */
    .cart-qty-controls {
        padding: 4px;
    }

    .cart-qty-btn {
        width: 32px;
        height: 32px;
        font-size: 1.2rem;
    }

    .cart-qty-value {
        min-width: 32px;
        font-size: 1rem;
    }

    /* 删除按钮增大点击区域 */
    .cart-remove-btn {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }

    .cart-item-subtotal {
        font-size: 1rem;
    }

    .cart-drawer-footer {
        padding: 1rem 1.2rem 1.5rem;
    }

    .cart-summary-row {
        font-size: 0.95rem;
        padding: 0.4rem 0;
    }

    .cart-grand-total {
        padding: 0.8rem 0;
    }

    .cart-grand-total .cart-total-label {
        font-size: 1.1rem;
    }

    .cart-grand-total .cart-total-value {
        font-size: 1.4rem;
    }

    /* PayPal按钮容器优化 */
    .cart-paypal-container {
        margin-top: 1rem;
        min-height: 50px;
    }

    .cart-paypal-note {
        font-size: 0.85rem;
        margin-bottom: 0.8rem;
    }

    /* 继续购物按钮增大 */
    .cart-continue-btn {
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
        margin-top: 1rem;
    }

    .cart-empty-icon {
        font-size: 3.5rem;
    }

    .cart-empty-title {
        font-size: 1.1rem;
    }

    .cart-empty-desc {
        font-size: 0.9rem;
    }

    .cart-toast-container {
        top: 4rem;
    }

    .cart-toast {
        font-size: 0.9rem;
        padding: 0.8rem 1.5rem;
    }
}

/* ============================================
   动画
   ============================================ */
@keyframes cart-slide-in {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.cart-item {
    animation: cart-slide-in 0.3s ease;
}