@import url("https://cdn.jsdelivr.net/npm/@tabler/core@latest/dist/css/tabler.min.css");

:root {
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --dark-color: #5a5c69;
    --light-color: #f8f9fc;
    --sidebar-width: 250px;
    --card-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

body {
    font-family: var(--tblr-font-sans-serif, 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif);
    background-color: var(--tblr-bg-surface, #f4f7fc);
    color: var(--tblr-body-color, #5a5c69);
}

/* 现代化卡片 */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e3e6f0;
    padding: 1rem 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* 按钮样式 */
.btn {
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-primary { background-color: var(--primary-color); border-color: var(--primary-color); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(78, 115, 223, 0.3); }

/* 表格样式 */
.table {
    color: #5a5c69;
}

.table thead th {
    background-color: #f8f9fc;
    border-bottom: 2px solid #e3e6f0;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05rem;
    font-weight: 700;
    color: #858796;
}

.table-hover tbody tr:hover {
    background-color: #f8f9fc;
}

/* 表格内元素对齐 */
.table code {
    display: inline-block;
    margin: 0;
    vertical-align: middle;
    font-weight: normal;
}

.table .badge {
    vertical-align: middle;
    margin: 0;
    font-weight: normal;
}

.table td {
    vertical-align: middle !important;
}

.table th {
    vertical-align: middle !important;
}

/* 侧边栏布局 */
#wrapper {
    display: flex;
}

#sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--tblr-bg-surface, #ffffff);
    color: var(--tblr-body-color, #1f2937);
    border-right: 1px solid var(--tblr-border-color, #e9ecef);
    transition: all 0.3s;
}

#sidebar .sidebar-brand {
    padding: 1.5rem;
    font-size: 1.2rem;
    font-weight: 800;
    text-align: center;
    display: block;
    color: var(--tblr-body-color, #1f2937);
    text-decoration: none;
}

#sidebar .nav-link {
    color: var(--tblr-body-color, #1f2937);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.2s;
    border-radius: 0.5rem;
    margin: 0.15rem 0.75rem;
}

#sidebar .nav-link:hover, #sidebar .nav-link.active {
    color: var(--tblr-primary, #206bc4);
    background: var(--tblr-primary-lt, rgba(32, 107, 196, 0.12));
}

#sidebar .nav-link i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
    color: inherit;
}

#content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

#content {
    padding: 2rem;
}

.navbar {
    border-bottom: 1px solid var(--tblr-border-color, #e9ecef);
}

.card {
    border: 1px solid var(--tblr-border-color, #e9ecef);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.card-header {
    border-bottom: 1px solid var(--tblr-border-color, #e9ecef);
    color: var(--tblr-body-color, #1f2937);
}

.announcement-area {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.announcement-title-center {
    display: block;
    width: 100%;
    text-align: center;
    font-weight: 800;
    color: var(--tblr-primary, #206bc4);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.announcement-marquee {
    position: relative;
    overflow: hidden;
    height: 1.6rem;
    border-radius: 0.5rem;
    background: var(--tblr-bg-surface, #ffffff);
    border: 1px solid var(--tblr-border-color, #e9ecef);
}

.announcement-marquee-text {
    position: absolute;
    left: 0;
    top: 50%;
    white-space: nowrap;
    font-weight: 600;
    color: var(--tblr-body-color, #1f2937);
    will-change: transform;
    line-height: 1.6rem;
    padding: 0 1rem;
    left: 100%;
    transform: translateY(-50%);
}

.announcement-marquee-text.is-running {
    animation: announcement-marquee-left var(--marquee-duration, 14s) linear 1;
}

@keyframes announcement-marquee-left {
    0% { left: 100%; }
    100% { left: -100%; }
}

/* 登录/注册页面专用 */
.auth-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.auth-card {
    max-width: 450px;
    width: 100%;
    margin: auto;
    background: white;
    border-radius: 1rem;
    overflow: hidden;
}

.auth-header {
    padding: 2.5rem 2rem 1.5rem;
    text-align: center;
}

.auth-body {
    padding: 0 2.5rem 2.5rem;
}

/* 徽章样式 */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 600;
    border-radius: 0.35rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
    #sidebar {
        margin-left: calc(-1 * var(--sidebar-width));
    }
    #sidebar.active,
    #sidebar.toggled {
        margin-left: 0;
    }
}

/* 公告轮播样式 */
.carousel.vertical .carousel-item {
    transition: transform 0.6s ease-in-out;
}

.carousel.vertical .carousel-inner {
    height: 40px;
}

.carousel-item.active,
.carousel-item-next,
.carousel-item-prev {
    display: flex !important;
}

.badge.bg-info {
    background-color: var(--info-color) !important;
    font-size: 0.65rem;
    padding: 0.35em 0.5em;
}

.border-dashed {
    border: 2px dashed #d1d3e2 !important;
    background: #f8f9fc;
    transition: all 0.3s;
}

.border-dashed:hover {
    border-color: var(--primary-color) !important;
    background: #fff;
}

/* 仪表板卡片增强 */
.stat-card {
    transition: transform 0.2s, box-shadow 0.2s;
    border-left: 0.25rem solid transparent;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 2rem 0 rgba(58, 59, 69, 0.2);
}

.stat-card.primary { border-left-color: var(--primary-color); }
.stat-card.success { border-left-color: var(--success-color); }
.stat-card.info { border-left-color: var(--info-color); }
.stat-card.warning { border-left-color: var(--warning-color); }
.stat-card.danger { border-left-color: var(--danger-color); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fc;
    color: #dddfeb;
    font-size: 1.25rem;
    transition: all 0.3s;
}

.stat-card:hover .stat-icon {
    background: var(--primary-color);
    color: white;
}

.stat-card.success:hover .stat-icon { background: var(--success-color); }
.stat-card.info:hover .stat-icon { background: var(--info-color); }
.stat-card.warning:hover .stat-icon { background: var(--warning-color); }

/* 快速操作按钮网格 */
.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.action-item {
    background: #fff;
    border-radius: 0.75rem;
    padding: 1.25rem;
    text-align: center;
    text-decoration: none;
    color: var(--dark-color);
    transition: all 0.2s;
    border: 1px solid #e3e6f0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.action-item:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.03);
    border-color: var(--primary-color);
}

.action-item i {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.action-item span {
    font-size: 0.85rem;
    font-weight: 700;
}

/* 公告列表样式增强 */
.announcement-list .list-group-item {
    border-left: none;
    border-right: none;
    padding: 1rem 1.25rem;
}

.announcement-list .list-group-item:first-child { border-top: none; }
.announcement-list .list-group-item:last-child { border-bottom: none; }

.announcement-title {
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
    display: block;
}

.announcement-meta {
    font-size: 0.75rem;
    color: var(--secondary-color);
}