/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

/* 卡片悬停效果 */
.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

/* 侧边栏 */
.sidebar {
    min-height: calc(100vh - 56px);
}

/* 表单样式 */
.form-control:focus, .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* 按钮样式 */
.btn {
    border-radius: 0.375rem;
}

/* 表格样式 */
.table-hover tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.075);
}

/* 导航栏 */
.navbar-brand {
    font-weight: 600;
}

/* 权限标签 */
.permission-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

/* 模块卡片 */
.module-card {
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.module-card:hover {
    border-color: #86b7fe;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
}

/* 加载动画 */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 消息提醒 */
.alert {
    border-radius: 0.5rem;
}

/* 页脚 */
.footer {
    border-top: 1px solid #dee2e6;
}