/* ============================================================
   LXD Panel - Admin 管理端布局与表格样式（深色科技风）
   ============================================================ */

/* ---------- 整体布局 ---------- */
.admin-shell { min-height: 100vh; display: flex; }
.admin-sidebar {
  width: 232px; flex-shrink: 0;
  display: flex; flex-direction: column;
  background: rgba(9, 14, 25, 0.92);
  border-right: 1px solid var(--border);
  position: fixed; inset: 0 auto 0 0; z-index: 40;
  transition: transform .28s ease;
}
.admin-main { flex: 1; margin-left: 232px; min-width: 0; display: flex; flex-direction: column; }
.admin-topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px;
  background: rgba(9, 14, 25, 0.72);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(12px);
}
.admin-content { padding: 20px; max-width: 1280px; width: 100%; margin: 0 auto; }

/* 侧边栏品牌区 */
.side-brand { display: flex; align-items: center; gap: 10px; padding: 16px 16px 12px; }
.side-brand .brand-logo { width: 34px; height: 34px; font-size: 15px; }
.side-brand-name { font-weight: 700; font-size: 15px; color: var(--text-1); }
.side-brand-sub { font-size: 11px; color: var(--text-3); margin-top: 2px; }

/* 菜单 */
.side-nav { flex: 1; overflow-y: auto; padding: 8px 10px 16px; }
.menu-group-label { font-size: 11px; color: var(--text-3); padding: 12px 10px 6px; text-transform: uppercase; letter-spacing: .08em; }
.menu-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; margin: 2px 0;
  border-radius: 10px; color: var(--text-2);
  font-size: 13.5px; cursor: pointer; border: 1px solid transparent;
  transition: background .2s, color .2s;
}
.menu-item:hover { background: var(--card); color: var(--text-1); }
.menu-item.active { background: rgba(56, 189, 248, 0.1); color: var(--primary); border-color: rgba(56, 189, 248, 0.25); }
.menu-item .mi-icon { width: 18px; text-align: center; flex-shrink: 0; }
.menu-item .mi-caret { margin-left: auto; font-size: 10px; color: var(--text-3); }
.menu-sub { padding-left: 12px; }
.menu-sub .menu-item { font-size: 13px; padding: 7px 12px; }
.menu-sub .menu-item .mi-icon { width: 14px; }

.side-foot { padding: 12px 16px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }

/* 顶栏 */
.topbar-title { font-size: 15px; font-weight: 700; color: var(--text-1); }
.topbar-title .sub { font-size: 12px; color: var(--text-3); font-weight: 400; margin-top: 1px; }
.topbar-spacer { flex: 1; }
.btn-menu { display: none; }

/* 移动端抽屉 */
.side-overlay {
  position: fixed; inset: 0; z-index: 39;
  background: rgba(0, 0, 0, 0.5); opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
@media (max-width: 900px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.open { transform: translateX(0); }
  .side-overlay.show { opacity: 1; pointer-events: auto; }
  .admin-main { margin-left: 0; }
  .btn-menu { display: inline-flex; }
  .admin-content { padding: 14px; }
}

/* ---------- 页面卡片与表头 ---------- */
.page-head { display: flex; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.page-head h2 { font-size: 19px; font-weight: 700; color: var(--text-1); }
.page-head .sub { font-size: 12.5px; color: var(--text-3); margin-top: 3px; }
.page-head-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
@media (max-width: 900px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; } }
.stat-card { padding: 14px 16px; }
.stat-card .stat-icon { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.stat-card .stat-val { font-size: 22px; font-weight: 800; color: var(--text-1); margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat-card .stat-name { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* ---------- 表格 ---------- */
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.tbl th {
  text-align: left; padding: 10px 12px;
  color: var(--text-3); font-weight: 600; font-size: 12px;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap; background: rgba(255,255,255,0.02);
}
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); color: var(--text-2); vertical-align: middle; }
.tbl tbody tr { transition: background .15s; }
.tbl tbody tr:hover { background: var(--card); }
.tbl .mono { font-family: var(--mono); font-size: 12px; }
.tbl .row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* 空状态 / 加载 */
.empty { text-align: center; color: var(--text-3); padding: 40px 16px; font-size: 13.5px; }
.empty .empty-icon { font-size: 34px; opacity: .5; margin-bottom: 8px; }

/* 进度条 */
.progress { height: 6px; background: var(--card-strong); border-radius: 999px; overflow: hidden; }
.progress > i { display: block; height: 100%; border-radius: 999px; background: var(--primary-grad); transition: width .5s ease; }

/* 工具条（搜索/筛选/操作） */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .grow { flex: 1; }
.search-box { position: relative; }
.search-box input { padding-left: 34px; min-width: 220px; }
.search-box .sb-icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--text-3); font-size: 13px; }

/* 标签 tab */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tab { padding: 9px 16px; font-size: 13.5px; color: var(--text-2); cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tab:hover { color: var(--text-1); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* 网格 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 900px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }