/* 深鲸电商平台 - 管理员风格样式 */
:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --primary-light: #5dade2;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-light: #bdc3c7;
    --gray-dark: #7f8c8d;
    
    --gradient-primary: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    --gradient-secondary: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    --gradient-success: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    --gradient-text: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    --gradient-text-dark: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    --border-radius: 8px;
    --border-radius-sm: 6px;
    --border-radius-lg: 12px;
}

/* 基础样式 */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: 
        linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(41, 128, 185, 0.1) 100%),
        url('https://images.unsplash.com/photo-1556742049-0cfed4f6a45d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #2c3e50;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* 管理员布局样式 */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏样式 */
.admin-sidebar {
    width: 250px;
    background: var(--gradient-secondary);
    color: white;
    padding: 1.5rem 0;
    box-shadow: var(--shadow-medium);
    z-index: 100;
}

.admin-sidebar-header {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
}

.admin-sidebar-header h3 {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin: 0;
    font-size: 1.3rem;
}

.admin-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.admin-nav-item {
    margin-bottom: 0.5rem;
}

.admin-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.admin-nav-link:hover,
.admin-nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--primary-color);
}

.admin-nav-link i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

/* 主内容区域样式 */
.admin-main {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.admin-header {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-light);
    display: flex;
    justify-content: between;
    align-items: center;
}

.admin-header h1 {
    background: var(--gradient-text-dark);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin: 0;
    font-size: 1.5rem;
}

.admin-user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-user-info span {
    color: var(--dark-color);
    font-weight: 500;
}

.btn-logout {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-logout:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

/* 统计卡片样式 */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.stat-card.total-users {
    border-left-color: var(--primary-color);
}

.stat-card.active-users {
    border-left-color: var(--success-color);
}

.stat-card.seller-users {
    border-left-color: var(--warning-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
    background: var(--gradient-text-dark);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--gray-dark);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 搜索栏样式 */
.admin-search {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-light);
}

.search-form {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.search-hint {
    color: var(--gray-dark);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* 表格样式 */
.admin-table-container {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-light);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover {
    background: rgba(52, 152, 219, 0.05);
}

/* 按钮样式 */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    margin: 0.25rem;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.btn-success {
    background: var(--success-color);
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-success:hover {
    background: #229954;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.btn-outline-primary {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        position: sticky;
        top: 0;
    }
    
    .admin-nav {
        display: flex;
        overflow-x: auto;
    }
    
    .admin-nav-item {
        flex: 0 0 auto;
        margin-bottom: 0;
        margin-right: 0.5rem;
    }
    
    .admin-nav-link {
        border-left: none;
        border-bottom: 3px solid transparent;
        white-space: nowrap;
    }
    
    .admin-nav-link:hover,
    .admin-nav-link.active {
        border-left-color: transparent;
        border-bottom-color: var(--primary-color);
    }
    
    .admin-stats {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .admin-user-info {
        align-self: flex-end;
    }
}

/* 工具类 */
.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.bg-light { background-color: var(--light-color) !important; }

/* 渐变文字效果 */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-dark {
    background: var(--gradient-text-dark);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 订单管理页面 - 商品图片强制3:2比例 */
.order-product-img {
    width: 90px;
    height: 60px; /* 3:2 比例: 90/60 = 1.5 */
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--gray-light);
    flex-shrink: 0;
}

/* 商品信息容器 */
.order-product-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.order-product-details {
    flex: 1;
    min-width: 0;
}

.order-product-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 4px;
    color: var(--dark-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.order-shop-name {
    font-size: 0.85rem;
    color: var(--gray-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}