/* ============================================
   GAME 游推汇 · 管理员后台公共样式
   与前台（style.css）风格统一：深蓝紫背景 + 紫色渐变 + 圆角卡片
   ============================================ */
:root {
  --admin-bg: #18154f;
  --admin-bg-deep: #10102f;
  --admin-card: #232066;
  --admin-card-border: rgba(185, 122, 250, 0.18);
  --admin-text: #e8e6ff;
  --admin-text-dim: #a0abd2;
  --admin-purple: #7850d7;
  --admin-purple-light: #b97afa;
  --admin-purple-dark: #4a34a7;
  --admin-green: #3b6d11;
  --admin-green-bg: #eaf3de;
  --admin-red: #a83535;
  --admin-red-bg: #fbeaea;
  --admin-orange-bg: #faeeda;
  --admin-orange: #854f0b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: "Lufga", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

a { color: var(--admin-purple-light); text-decoration: none; }
a:hover { color: #d3b8ff; }

/* ============ 布局 ============ */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--admin-bg-deep);
  border-right: 1px solid var(--admin-card-border);
  padding: 20px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.admin-sidebar-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 8px 8px 20px;
  border-bottom: 1px solid var(--admin-card-border);
  margin-bottom: 16px;
}
.admin-sidebar-logo img { height: 34px; }
.admin-sidebar-logo .logo-text {
  font-weight: 800;
  font-size: 20px;
  background: linear-gradient(90deg, #b97afa, #4a34a7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
  line-height: 1.2;
  white-space: nowrap;
}
.admin-sidebar-logo .logo-sub {
  font-size: 11px;
  color: var(--admin-text-dim);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.admin-nav-group {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--admin-text-dim);
  letter-spacing: 1.5px;
  margin: 18px 8px 8px;
  opacity: 0.7;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 12px;
  border-radius: 8px;
  color: var(--admin-text-dim);
  margin-bottom: 4px;
  transition: all .2s;
  font-weight: 600;
  font-size: 18px;
}
.admin-nav-item:hover { background: rgba(120, 80, 215, 0.15); color: #fff; }
.admin-nav-item.active {
  background: linear-gradient(90deg, rgba(120, 80, 215, 0.35), rgba(74, 52, 167, 0.25));
  color: #fff;
}
.admin-nav-item i { width: 22px; text-align: center; font-style: normal; font-size: 20px; }

.admin-nav-badge {
  margin-left: auto;
  background: var(--admin-red);
  color: #fff;
  font-size: 12px;
  border-radius: 10px;
  padding: 0 8px;
  line-height: 20px;
}

/* 主内容 */
.admin-main {
  flex: 1;
  padding: 48px 28px 40px;
  min-width: 0;
}

/* 顶栏 */
.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.admin-topbar h1 {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
}
.admin-topbar .subtitle {
  color: var(--admin-text-dim);
  font-size: 13px;
  margin-top: 4px;
}
.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.admin-avatar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: var(--admin-card);
  border: 1px solid var(--admin-card-border);
  border-radius: 30px;
}
.admin-avatar img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}
.admin-avatar .name { font-weight: 600; font-size: 13px; }
.admin-avatar .role { font-size: 11px; color: var(--admin-text-dim); }

/* ============ 卡片 ============ */
.admin-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-card-border);
  border-radius: 12px;
  padding: 20px;
}
.admin-card-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.admin-card-title .badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--admin-purple-light);
  display: inline-block;
}

/* 统计卡 */
.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width: 1100px) { .admin-stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .admin-stat-grid { grid-template-columns: 1fr; } }

.admin-stat-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-card-border);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.admin-stat-label { font-size: 13px; color: var(--admin-text-dim); }
.admin-stat-value { font-size: 24px; font-weight: 700; margin-top: 6px; }
.admin-stat-trend { font-size: 12px; margin-top: 4px; }
.admin-stat-trend.up { color: #7ed957; }
.admin-stat-trend.down { color: #ff6b6b; }
.admin-stat-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-style: normal;
}

/* 双列布局 */
.admin-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 900px) { .admin-grid-2 { grid-template-columns: 1fr; } }

/* ============ 表格 ============ */
.admin-table-wrap { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.admin-table th {
  text-align: left;
  padding: 12px 14px;
  color: var(--admin-text-dim);
  font-weight: 600;
  border-bottom: 1px solid var(--admin-card-border);
  white-space: nowrap;
}
.admin-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(185, 122, 250, 0.08);
  vertical-align: middle;
}
.admin-table tr:hover td { background: rgba(120, 80, 215, 0.06); }
.admin-table .cell-user { display: flex; align-items: center; gap: 10px; }
.admin-table .cell-user img {
  width: 34px; height: 34px; border-radius: 50%; object-fit: cover;
}

/* ============ 状态徽章 ============ */
.admin-badge {
  display: inline-block;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 20px;
  font-weight: 600;
  white-space: nowrap;
}
.admin-badge.green { background: var(--admin-green-bg); color: var(--admin-green); }
.admin-badge.red { background: var(--admin-red-bg); color: var(--admin-red); }
.admin-badge.orange { background: var(--admin-orange-bg); color: var(--admin-orange); }
.admin-badge.gray { background: #ececf5; color: #5f5e6a; }
.admin-badge.purple { background: #eeedfe; color: #534ab7; }

/* ============ 按钮 ============ */
.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all .2s;
  font-family: inherit;
}
.admin-btn.primary {
  background: linear-gradient(90deg, var(--admin-purple-light), var(--admin-purple-dark));
  color: #fff;
}
.admin-btn.primary:hover { opacity: 0.9; transform: translateY(-1px); }
.admin-btn.secondary {
  background: transparent;
  color: var(--admin-text);
  border: 1px solid var(--admin-card-border);
}
.admin-btn.secondary:hover { border-color: var(--admin-purple-light); color: var(--admin-purple-light); }
.admin-btn.danger { background: var(--admin-red-bg); color: var(--admin-red); }
.admin-btn.sm { padding: 5px 12px; font-size: 12px; }

/* ============ 表单 ============ */
.admin-form-group { margin-bottom: 16px; }
.admin-form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--admin-text);
}
.admin-input, .admin-select, .admin-textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--admin-card-border);
  border-radius: 8px;
  color: var(--admin-text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s;
}
.admin-input:focus, .admin-select:focus, .admin-textarea:focus { border-color: var(--admin-purple-light); }
.admin-select option { background: var(--admin-bg-deep); color: #fff; }
.admin-textarea { min-height: 90px; resize: vertical; }
.admin-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .admin-form-row { grid-template-columns: 1fr; } }

/* 搜索框 */
.admin-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--admin-card-border);
  border-radius: 8px;
  padding: 0 14px;
  min-width: 240px;
}
.admin-search input {
  background: none; border: none; outline: none;
  color: var(--admin-text);
  padding: 9px 0;
  font-size: 13px;
  width: 100%;
  font-family: inherit;
}
.admin-search .icon { color: var(--admin-text-dim); }

/* ============ 操作栏 ============ */
.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.admin-toolbar-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.admin-toolbar-right { display: flex; gap: 10px; }

/* ============ 分页 ============ */
.admin-pagination { display: flex; gap: 6px; justify-content: center; margin-top: 20px; }
.admin-pagination a, .admin-pagination span {
  min-width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: var(--admin-card);
  color: var(--admin-text-dim);
  font-size: 13px;
  border: 1px solid var(--admin-card-border);
}
.admin-pagination a:hover { color: var(--admin-purple-light); border-color: var(--admin-purple-light); }
.admin-pagination .active { background: linear-gradient(90deg, var(--admin-purple-light), var(--admin-purple-dark)); color: #fff; border: none; }

/* ============ 进度条 ============ */
.admin-progress { height: 6px; background: rgba(255,255,255,0.08); border-radius: 4px; overflow: hidden; min-width: 90px; }
.admin-progress .bar { height: 100%; border-radius: 4px; background: linear-gradient(90deg, #b97afa, #4a34a7); }

/* 简单柱状趋势（CSS 迷你图表） */
.admin-bars { display: flex; align-items: flex-end; gap: 8px; height: 120px; padding: 0 6px; }
.admin-bars .bar {
  flex: 1;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, #b97afa, #4a34a7);
  min-height: 8px;
  position: relative;
}
.admin-bars .bar-label { position: absolute; bottom: -22px; left: 0; right: 0; text-align: center; font-size: 11px; color: var(--admin-text-dim); }

/* 待办列表 */
.admin-todo { list-style: none; margin: 0; padding: 0; }
.admin-todo li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(185, 122, 250, 0.08);
  font-size: 13px;
}
.admin-todo li:last-child { border-bottom: none; }
.admin-todo .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.admin-todo .todo-text { flex: 1; }
.admin-todo .todo-num { font-weight: 700; color: var(--admin-purple-light); }

/* 响应式侧边栏 */
@media (max-width: 900px) {
  .admin-sidebar { width: 64px; padding: 16px 8px; }
  .admin-sidebar-logo .logo-text,
  .admin-nav-group,
  .admin-nav-item span { display: none; }
  .admin-nav-item { justify-content: center; padding: 10px; }
  .admin-nav-badge { display: none; }
  .admin-main { padding: 16px; }
}

/* ============ 折叠菜单（手风琴） ============ */
.admin-acc-group { display: flex; flex-direction: column; gap: 12px; }
.admin-acc-item {
  background: var(--admin-card);
  border: 1px solid var(--admin-card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all .3s;
}
.admin-acc-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--admin-text);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  transition: background .2s;
}
.admin-acc-header:hover { background: rgba(120, 80, 215, 0.08); }
.admin-acc-item.open .admin-acc-header {
  background: linear-gradient(90deg, rgba(120, 80, 215, 0.18), rgba(74, 52, 167, 0.08));
}
.acc-icon { font-style: normal; font-size: 18px; }
.acc-title { flex: 1; }
.acc-badge {
  font-size: 11px;
  font-weight: 600;
  background: rgba(120, 80, 215, 0.15);
  color: var(--admin-purple-light);
  padding: 3px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.acc-arrow {
  transition: transform .3s;
  font-size: 14px;
  color: var(--admin-text-dim);
}
.admin-acc-item.open .acc-arrow { transform: rotate(180deg); }
.admin-acc-body {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  transition: max-height .4s ease, padding .4s ease;
}
.admin-acc-item.open .admin-acc-body {
  max-height: 3000px;
  padding: 8px 20px 20px;
}
.light .acc-badge { background: rgba(120, 80, 215, 0.12); color: var(--admin-purple); }
.light .admin-acc-item.open .admin-acc-header { background: rgba(120, 80, 215, 0.08); }

/* ============ 主题切换按钮（与前台一致） ============ */
.admin-theme-toggle {
  width: 48px;
  height: 26px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid var(--admin-card-border);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: all .3s;
}
.admin-theme-toggle::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #b97afa;
  transition: all .3s;
}
.admin-theme-toggle.active::after {
  right: calc(100% - 22px);
  background: #4a34a7;
}
.admin-theme-toggle .toggle-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  line-height: 1;
}
.admin-theme-toggle .icon-moon { left: 5px; }
.admin-theme-toggle .icon-sun { right: 5px; }

/* ============ Light 主题（与前台 .light 联动） ============ */
.light {
  --admin-bg: #f4f3fb;
  --admin-bg-deep: #eae8f8;
  --admin-card: #ffffff;
  --admin-card-border: rgba(120, 80, 215, 0.15);
  --admin-text: #2a2745;
  --admin-text-dim: #6b6790;
  --admin-purple: #7850d7;
  --admin-purple-light: #8b5cf6;
  --admin-purple-dark: #4a34a7;
  --admin-green: #3b6d11;
  --admin-green-bg: #eaf3de;
  --admin-red: #a83535;
  --admin-red-bg: #fbeaea;
  --admin-orange-bg: #faeeda;
  --admin-orange: #854f0b;
}
.light body { background: var(--admin-bg); color: var(--admin-text); }
.light .admin-sidebar { background: var(--admin-bg-deep); }
.light .admin-card { background: var(--admin-card); }
.light .admin-stat-card { background: var(--admin-card); }
.light .admin-input, .light .admin-select, .light .admin-textarea {
  background: rgba(120, 80, 215, 0.05);
  color: var(--admin-text);
}
.light .admin-select option { background: #fff; color: #333; }
.light .admin-search { background: rgba(120, 80, 215, 0.05); }
.light .admin-search input { color: var(--admin-text); }
.light .admin-avatar { background: var(--admin-card); }
.light .admin-pagination a, .light .admin-pagination span { background: var(--admin-card); }
.light .admin-todo li { border-color: rgba(120, 80, 215, 0.1); }
.light .admin-table td { border-color: rgba(120, 80, 215, 0.1); }
.light .admin-progress { background: rgba(120, 80, 215, 0.12); }
.light .admin-nav-item:hover { background: rgba(120, 80, 215, 0.1); }
.light .admin-btn.secondary { color: var(--admin-text); }
.light .admin-badge.gray { background: #f0f0f6; color: #6b6790; }
.light .admin-theme-toggle { background: rgba(120, 80, 215, 0.15); }