/* ============================================
   排排网 — 管理后台样式
   ============================================ */

/* 管理后台布局 */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 220px;
    background: #1e293b;
    color: #cbd5e1;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.admin-sidebar-header {
    padding: 20px 16px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: #fff;
}

.admin-nav {
    flex: 1;
    padding: 8px 0;
}

.admin-nav-item {
    display: block;
    padding: 10px 16px;
    color: #cbd5e1;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.15s;
}
.admin-nav-item:hover {
    background: rgba(255,255,255,0.06);
    color: #fff;
}
.admin-nav-item.active {
    background: #2563eb;
    color: #fff;
}

/* 主内容区 */
.admin-main {
    flex: 1;
    background: #f1f5f9;
    overflow-x: auto;
}

.admin-topbar {
    background: #fff;
    padding: 16px 24px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-topbar h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.admin-content {
    padding: 24px;
}

/* 统计卡片 */
.stat-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}
.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
}
.stat-label {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-top: 4px;
}

/* 操作卡片 */
.admin-action-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-decoration: none;
    color: #1e293b;
    transition: all 0.2s;
}
.admin-action-card:hover {
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    color: #1e293b;
}

/* 表格 */
.admin-table {
    width: 100%;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    border-collapse: collapse;
}
.admin-table th, .admin-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
}
.admin-table th {
    background: #f8fafc;
    font-weight: 600;
    color: #475569;
    font-size: 0.85rem;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: #f8fafc; }

/* 管理员登录页 */
.admin-login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #f1f5f9;
}
.admin-login-container {
    width: 100%;
    max-width: 380px;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .admin-nav { display: flex; flex-wrap: wrap; gap: 4px; padding: 8px; }
    .admin-nav-item { padding: 8px 12px; font-size: 0.8rem; border-radius: 4px; }
    .admin-content { padding: 16px; }
    .admin-topbar { padding: 12px 16px; flex-direction: column; gap: 4px; align-items: flex-start; }
    .admin-table { font-size: 0.8rem; }
    .admin-table th, .admin-table td { padding: 6px 8px; }
}