/**
 * 后台管理样式
 */

/* 侧边栏 */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.75);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.25rem;
    transition: all 0.2s;
}

.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    color: #fff;
    background: var(--bs-primary);
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
}

/* 主内容区 */
.flex-grow-1 {
    margin-left: 240px;
    min-height: 100vh;
    background: #f8f9fa;
}

/* 卡片增强 */
.card {
    border-radius: 0.75rem;
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1) !important;
}

/* 表格增强 */
.table {
    font-size: 0.9rem;
}

.table th {
    font-weight: 600;
    white-space: nowrap;
    border-bottom-width: 2px;
}

.table td {
    vertical-align: middle;
}

/* 按钮组 */
.btn-group-sm .btn {
    padding: 0.25rem 0.5rem;
}

/* 徽章 */
.badge.rounded-pill {
    padding: 0.35em 0.65em;
}

/* 分页 */
.pagination {
    margin: 0;
}

.page-link {
    border-radius: 0.5rem;
    margin: 0 0.125rem;
}

.page-item.active .page-link {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

/* 表单增强 */
.form-control:focus,
.form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
}

/* 统计卡片 */
[class*="bg-opacity-"] {
    transition: transform 0.2s;
}

.card:hover [class*="bg-opacity-"] {
    transform: scale(1.05);
}

/* 模态框 */
.modal-header {
    border-bottom: 1px solid #e9ecef;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
}

/* 加载动画 */
.spinner-border {
    width: 2rem;
    height: 2rem;
}

/* 响应式调整 */
@media (max-width: 991.98px) {
    .sidebar {
        width: 100%;
        position: relative;
        min-height: auto;
    }

    .flex-grow-1 {
        margin-left: 0;
    }
}

/* 下拉菜单 */
.dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    margin: 0.125rem 0.25rem;
}

.dropdown-item:hover {
    background-color: #f8f9fa;
}

/* 警告提示 */
.alert {
    border: none;
    border-radius: 0.5rem;
}

/* 头像 */
.rounded-circle {
    object-fit: cover;
}

/* 状态徽章颜色 */
.bg-warning {
    color: #000 !important;
}

.bg-light {
    color: #212529 !important;
}