/* 姜十三论坛 - 前台 + 管理后台样式 */
:root {
  --primary: #1a7f4b;
  --primary-dark: #156b3f;
  --primary-light: #e8f5ee;
  --accent: #c9a227;
  --admin-sidebar-w: 220px;
}

body {
  min-height: 100vh;
  background-color: #f4f6f8;
  color: #1d2129;
}

/* ===== 管理后台 ===== */
.admin-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #f2f3f5;
}

.admin-topbar {
  height: 56px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
}

.admin-topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-topbar-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.admin-topbar-title {
  display: block;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.3;
}

.admin-topbar-sub {
  display: block;
  font-size: 12px;
  opacity: .75;
  font-weight: 400;
}

.admin-topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-topbar-user {
  font-size: 13px;
  opacity: .9;
  padding-right: 4px;
  border-right: 1px solid rgba(255,255,255,.25);
  margin-right: 4px;
  padding-left: 0;
}

.admin-shell {
  display: flex;
  flex: 1;
  min-height: 0;
}

.admin-sidebar {
  width: var(--admin-sidebar-w);
  flex-shrink: 0;
  background: #fff;
  border-right: 1px solid #e5e6eb;
  padding: 20px 14px;
  overflow-y: auto;
}

.admin-sidebar-section {
  font-size: 11px;
  font-weight: 600;
  color: #86909c;
  padding: 12px 12px 6px;
  letter-spacing: .06em;
}

.admin-sidebar-section:first-child {
  padding-top: 4px;
}

.admin-sidebar .nav-link {
  display: block;
  color: #4e5969;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 2px;
  font-size: 14px;
  text-decoration: none;
  transition: background .15s, color .15s;
  border-left: 3px solid transparent;
}

.admin-sidebar .nav-link:hover {
  background: #f7f8fa;
  color: #1d2129;
}

.admin-sidebar .nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
}

.admin-main {
  flex: 1;
  min-width: 0;
  padding: 28px 32px;
  overflow-y: auto;
  max-width: 1280px;
}

.admin-page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.admin-page-head h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 6px;
  color: #1d2129;
}

.admin-page-head p {
  margin: 0;
  color: #86909c;
  font-size: 14px;
}

.admin-search-bar {
  display: flex;
  gap: 8px;
  align-items: center;
}

.admin-search-bar .form-control {
  width: 240px;
  border-color: #e5e6eb;
  font-size: 13px;
}

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.admin-stat-card {
  background: #fff;
  border: 1px solid #e5e6eb;
  border-radius: 12px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: box-shadow .2s;
}

.admin-stat-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
}

.admin-stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.admin-stat-users .admin-stat-icon { background: #e8f3ff; color: #3491fa; }
.admin-stat-posts .admin-stat-icon { background: #e8f5ee; color: var(--primary); }
.admin-stat-boards .admin-stat-icon { background: #fff7e8; color: #ff7d00; }
.admin-stat-comments .admin-stat-icon { background: #f5e8ff; color: #722ed1; }
.admin-stat-online .admin-stat-icon { background: #e8ffea; color: #00b42a; }

.admin-stat-users .value { color: #3491fa; }
.admin-stat-posts .value { color: var(--primary); }
.admin-stat-boards .value { color: #ff7d00; }
.admin-stat-comments .value { color: #722ed1; }
.admin-stat-online .value { color: #00b42a; }

.admin-stat-card .value {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
}

.admin-stat-card .label {
  font-size: 13px;
  color: #86909c;
  margin-top: 2px;
}

.admin-card {
  background: #fff;
  border: 1px solid #e5e6eb;
  border-radius: 12px;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.admin-card-head {
  padding: 16px 20px;
  border-bottom: 1px solid #f2f3f5;
  font-weight: 600;
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #1d2129;
}

.admin-card-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: opacity .15s;
}

.admin-card-link:hover {
  opacity: .75;
  color: var(--primary-dark);
}

.admin-card-body {
  padding: 20px;
}

.admin-table {
  margin: 0;
  font-size: 13px;
  --bs-table-hover-bg: #f7f8fa;
}

.admin-table th {
  background: #fafbfc;
  font-weight: 600;
  white-space: nowrap;
  color: #4e5969;
  font-size: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid #e5e6eb;
}

.admin-table td {
  vertical-align: middle;
  padding: 12px 16px;
  border-bottom: 1px solid #f2f3f5;
  color: #1d2129;
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

.admin-table tbody tr:hover td {
  background: #fafbfc;
}

.admin-table .btn-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.admin-table .btn-link:hover {
  text-decoration: underline;
}

.text-truncate-cell {
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge-pin {
  background: #ff7d00;
  color: #fff;
  font-weight: 500;
  font-size: 11px;
}

.badge-admin {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 500;
}

.badge-banned {
  background: #ffece8;
  color: #f53f3f;
  font-weight: 500;
}

.admin-empty {
  text-align: center;
  padding: 48px 20px;
  color: #86909c;
  font-size: 14px;
}

.admin-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid #f2f3f5;
}

.admin-pagination-info {
  font-size: 13px;
  color: #86909c;
  padding: 0 8px;
}

.admin-body .btn-success {
  background: var(--primary);
  border-color: var(--primary);
}

.admin-body .btn-success:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.admin-body .btn-outline-success {
  color: var(--primary);
  border-color: var(--primary);
}

.admin-body .btn-outline-success:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.admin-body .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,127,75,.12);
}

.admin-body .form-label {
  color: #4e5969;
  margin-bottom: 4px;
}

.admin-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #f2f3f5 0%, #e8f5ee 60%, #d4edda 100%);
  padding: 24px;
}

.admin-login-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border: 1px solid #e5e6eb;
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,.08);
}

.admin-login-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 4px 12px rgba(26,127,75,.25);
}

.login-slogan {
  color: #86909c;
  font-size: 13px;
}

.info-row {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #f2f3f5;
  font-size: 13px;
}

.info-row:last-child { border-bottom: none; }
.info-row .info-label { width: 100px; color: #86909c; flex-shrink: 0; }
.info-row .info-value { flex: 1; word-break: break-all; color: #1d2129; }

#adminToast.toast {
  background: #1d2129;
  color: #fff;
  border: none;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
}

@media (max-width: 1100px) {
  .admin-stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .admin-shell { flex-direction: column; }
  .admin-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid #e5e6eb;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 10px 12px;
  }
  .admin-sidebar-section { display: none; }
  .admin-sidebar .nav-link {
    padding: 7px 12px;
    font-size: 13px;
    border-left: none;
  }
  .admin-sidebar .nav-link.active {
    border-left: none;
  }
  .admin-main { padding: 16px; max-width: none; }
  .admin-stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .admin-stat-card { padding: 14px 16px; }
  .admin-stat-card .value { font-size: 22px; }
  .admin-topbar-user { display: none; }
  .admin-search-bar .form-control { width: 160px; }
}

@media (max-width: 480px) {
  .admin-stat-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== 旧版前台兼容 ===== */
.navbar-brand { font-weight: 700; letter-spacing: 0.05em; }
.post-content { line-height: 1.8; word-break: break-word; }
.post-content img { max-width: 100%; height: auto; }
.avatar-sm { width: 36px; height: 36px; object-fit: cover; border-radius: 50%; }