/* 后台管理系统样式 */

/* 登录页面 */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-box {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    font-size: 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-form .form-control {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    border: 2px solid #e2e8f0;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.login-form .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-form .btn-primary {
    padding: 0.75rem;
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.login-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* 后台管理布局 */
.admin-body-layout {
    background: #f5f7fb;
    overflow-x: hidden;
}

.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 260px;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    color: white;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.admin-sidebar.collapsed {
    margin-left: -260px;
}

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

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.sidebar-brand i {
    font-size: 1.75rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: #94a3b8;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border-left-color: #667eea;
}

.sidebar-nav .nav-link.active {
    background: rgba(102, 126, 234, 0.1);
    color: white;
    border-left-color: #667eea;
}

.sidebar-nav .nav-link i {
    font-size: 1.25rem;
    width: 1.5rem;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 主内容区 */
.admin-content {
    flex: 1;
    margin-left: 260px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.admin-content.expanded {
    margin-left: 0;
}

.admin-header {
    background: white;
    padding: 1rem 2rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#sidebarToggle {
    color: #64748b;
    padding: 0.5rem;
    font-size: 1.25rem;
}

#sidebarToggle:hover {
    color: #667eea;
}

.admin-header-right .dropdown-toggle {
    color: #64748b;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.admin-header-right .dropdown-toggle:hover {
    background: #f1f5f9;
    color: #667eea;
}

.admin-body {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

/* 统计卡片 */
.stat-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
}

.stat-icon.bg-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-icon.bg-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stat-icon.bg-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-icon.bg-info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.stat-content p {
    color: #64748b;
    margin: 0;
    font-size: 0.875rem;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    margin-bottom: 1.5rem;
}

.card-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* 表格样式 */
.table {
    margin-bottom: 0;
}

.table thead th {
    background: #f8fafc;
    color: #64748b;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #e2e8f0;
    padding: 0.75rem 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
    color: #334155;
}

.table-hover tbody tr:hover {
    background: #f8fafc;
}

.progress {
    border-radius: 10px;
    background: #e2e8f0;
}

.progress-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

/* 徽章样式 */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.75rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-sidebar {
        margin-left: -260px;
    }
    
    .admin-sidebar.show {
        margin-left: 0;
    }
    
    .admin-content {
        margin-left: 0;
    }
    
    .admin-body {
        padding: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .stat-content h3 {
        font-size: 1.5rem;
    }
}

/* 快捷入口卡片 */
.quick-link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.quick-link-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.quick-link-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin-bottom: 0.75rem;
}

.quick-link-icon.bg-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.quick-link-icon.bg-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.quick-link-icon.bg-info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.quick-link-icon.bg-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.quick-link-text {
    font-weight: 600;
    color: #1e293b;
    font-size: 0.875rem;
    text-align: center;
}