/* 题库网页系统 - 自定义样式 */

/* 全局 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    background-color: #f8f9fa;
}

/* 卡片增强 */
.card {
    border-radius: 10px;
    transition: box-shadow 0.2s;
}
.card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

/* 仪表盘统计卡片 */
.card.bg-primary, .card.bg-success, .card.bg-info, .card.bg-warning {
    border: none;
    transition: transform 0.2s;
}
.card.bg-primary:hover, .card.bg-success:hover, .card.bg-info:hover, .card.bg-warning:hover {
    transform: translateY(-2px);
}

/* 题库选项 */
.list-group-item.list-group-item-action {
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: background-color 0.15s;
}
.list-group-item.list-group-item-action:hover {
    background-color: #e9ecef;
}

/* 套餐卡片 */
.package-card {
    border-top: 4px solid #4361ee;
    transition: transform 0.2s;
}
.package-card:hover {
    transform: translateY(-4px);
}

/* 分页 */
.pagination .page-link {
    color: #4361ee;
}
.pagination .active .page-link {
    background-color: #4361ee;
    border-color: #4361ee;
}

/* 响应式表格 */
.table-responsive {
    border-radius: 8px;
}

/* 导航栏 */
.navbar {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 管理侧边栏 */
.sidebar {
    position: sticky;
    top: 0;
    padding-top: 1rem;
}

/* 页脚 */
footer {
    font-size: 0.9rem;
}

/* 加载动画 */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Flash 消息淡入 */
.alert {
    animation: fadeIn 0.3s ease-in;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .display-4 { font-size: 2rem; }
    .sidebar { position: relative; min-height: auto; }
}