/* ============ 后台管理 ============ */
.admin-layout {
  display: grid;
  grid-template-columns: 196px 1fr;
  gap: 20px;
  align-items: start;
}

/* ------- 侧栏导航 ------- */
.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 86px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 10px;
}
.admin-nav__spacer { flex: 1; min-height: 10px; }

.admin-nav__btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 11px 12px;
  min-height: 42px;
  border-radius: 10px;
  font-size: 14px;
  font-family: var(--font);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  transition: background var(--t), color var(--t);
}
.admin-nav__btn .icon { width: 16px; height: 16px; opacity: .85; }
.admin-nav__btn:hover { background: var(--panel-2); color: var(--text); }
.admin-nav__btn.is-active {
  background: rgba(79, 140, 255, .14);
  color: #8fb4ff;
  font-weight: 600;
}
.admin-nav__btn.is-active .icon { opacity: 1; }
.admin-nav__btn--danger:hover { background: rgba(242, 109, 100, .13); color: #ff9089; }

/* ------- 内容区 ------- */
.admin-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px;
  min-height: 440px;
}

.tab-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.tab-head h2 { margin: 0; font-size: 18px; }
.admin-tab h3 { margin: 0 0 4px; font-size: 15px; }
.admin-tab > .muted { font-size: 13px; margin: 0 0 16px; }

/* ------- 分类管理 ------- */
.cat-manager {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px;
  margin-bottom: 18px;
}
.cat-manager h3 { margin: 0 0 12px; font-size: 15px; }
.cat-add-row { display: flex; gap: 10px; }
.cat-add-row input { flex: 1; }
.cat-hint { font-size: 13px; margin: 10px 0 0; }

.category-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.category-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px 12px;
  flex-wrap: wrap;
}
.category-item__name { font-weight: 600; font-size: 14px; }
.category-item__count {
  font-size: 12px;
  color: var(--muted);
  background: var(--panel-2);
  padding: 2px 9px;
  border-radius: 99px;
}
.category-item__actions { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; }
.category-item input { flex: 1; min-height: 36px; padding: 6px 10px; }

/* ------- 卡片表单 ------- */
.card-form {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 20px;
  margin-bottom: 18px;
}
.card-form h3 { margin: 0 0 6px; font-size: 15px; }
.card-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}
.field--wide { grid-column: 1 / -1; }

/* ------- 卡片列表 ------- */
.admin-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 列表内分类分组标题 */
.card-group-head {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin: 14px 2px 0;
}
.card-group-head::before {
  content: "";
  width: 4px;
  height: 14px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}
.card-group-head__count {
  background: var(--panel-2);
  border-radius: 99px;
  font-size: 11px;
  font-weight: 500;
  padding: 1px 8px;
}

.admin-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 13px 15px;
  flex-wrap: wrap;
  transition: border-color var(--t), background var(--t);
}
.admin-card:hover { border-color: #333c50; background: #141824; }

.admin-card__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-size: 20px;
  line-height: 1;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(79, 140, 255, .18), rgba(124, 92, 255, .12));
  border: 1px solid rgba(124, 140, 255, .24);
  flex-shrink: 0;
}
.admin-card__icon .icon { width: 18px; height: 18px; color: #a5bcff; }

.admin-card__main {
  flex: 1;
  min-width: 140px;
  display: flex;
  flex-direction: column;
}
.admin-card__title { font-weight: 600; font-size: 15px; }
.admin-card__url {
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 340px;
}
.admin-card__url--masked {
  font-family: var(--mono);
  letter-spacing: .14em;
  color: #b9c2d6;
}
.admin-card__note { font-size: 11px; color: var(--muted); opacity: .85; }

.admin-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 99px;
  white-space: nowrap;
}
.admin-card__badge .icon { width: 12px; height: 12px; }
.badge--locked {
  background: rgba(229, 181, 103, .13);
  color: var(--warn);
  border: 1px solid rgba(229, 181, 103, .38);
}
.badge--open {
  background: rgba(76, 201, 154, .13);
  color: var(--ok);
  border: 1px solid rgba(76, 201, 154, .38);
}

.admin-card__actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.admin-card__actions .btn:disabled { opacity: .35; }

/* ------- 设置 / 密码管理 ------- */
.settings-form { max-width: 460px; }

.sec-block + .sec-block {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 22px;
}
.sec-block h3 { margin: 0 0 4px; font-size: 15px; }
.sec-block .muted { font-size: 13px; margin: 0; }
.sec-block .muted strong { color: #ff9089; font-weight: 600; }

.quick-status {
  font-size: 13px;
  color: var(--muted);
  background: var(--bg-soft);
  border: 1px dashed var(--border);
  border-radius: 9px;
  padding: 9px 12px;
  margin: 12px 0 2px;
}
.quick-status.is-set {
  color: var(--ok);
  border-style: solid;
  border-color: rgba(76, 201, 154, .4);
  background: rgba(76, 201, 154, .07);
}

.backup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
  margin-top: 8px;
}
.backup-item {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.backup-item h3 {
  margin: 0;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.backup-item h3 .icon { color: var(--accent); }
.backup-item .muted { font-size: 13px; margin: 0; }
.backup-item--danger { border-color: rgba(242, 109, 100, .32); }
.backup-item--danger h3 .icon { color: var(--danger); }

/* ------- 响应式 ------- */
@media (max-width: 760px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .admin-nav__spacer { display: none; }
  .admin-nav__btn { flex: 1 1 auto; justify-content: center; min-height: 44px; }
  .card-form__grid { grid-template-columns: 1fr; }
  .admin-card__url { max-width: 200px; }
  .admin-card { gap: 10px; }
}