/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    line-height: 1.6;
}

/* 侧边栏样式 */
.sidebar {
    min-height: 100vh;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: #343a40 !important;
    position: sticky;
    top: 0;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, .65);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    transition: all 0.2s;
    border-radius: 0.375rem;
    margin: 0.125rem;
}

.sidebar .nav-link:hover {
    color: rgba(255, 255, 255, .85);
    background-color: rgba(255, 255, 255, .1);
}

.sidebar .nav-link.active {
    color: #fff;
    background-color: #0d6efd;
}

.sidebar .nav-link i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-header h4 {
    color: #fff;
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

/* 主内容区域样式 */
main {
    background-color: #f8f9fa;
    min-height: 100vh;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: all 0.2s;
}

.card:hover {
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e3e6f0;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e3e6f0;
    padding: 0.75rem 1.25rem;
}

/* 统计卡片样式 */
.border-left-primary {
    border-left: 0.25rem solid #4e73df !important;
}

.border-left-success {
    border-left: 0.25rem solid #1cc88a !important;
}

.border-left-warning {
    border-left: 0.25rem solid #f6c23e !important;
}

.border-left-info {
    border-left: 0.25rem solid #36b9cc !important;
}

/* 按钮样式 */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-sm {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
}

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

.table th {
    border-top: none;
    font-weight: 600;
    color: #5a5c69;
    background-color: #f8f9fa;
}

.table td {
    vertical-align: middle;
}

/* 模态框样式 */
.modal-content {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #e3e6f0;
    padding: 1.25rem;
}

.modal-footer {
    border-top: 1px solid #e3e6f0;
    padding: 1rem 1.25rem;
}

/* 表单样式 */
.form-control, .form-select {
    border-radius: 0.375rem;
    border: 1px solid #d1d3e2;
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    font-weight: 500;
    color: #5a5c69;
    margin-bottom: 0.5rem;
}

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

/* 图标样式 */
.text-gray-300 {
    color: #dddfeb !important;
}

.text-gray-800 {
    color: #5a5c69 !important;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        z-index: 1050;
        transition: left 0.3s;
    }
    
    .sidebar.show {
        left: 0;
    }
    
    main {
        margin-left: 0;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #ccc;
    border-top-color: #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 工具提示样式 */
.tooltip {
    font-size: 0.875rem;
}

/* 自定义滚动条 */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}