/* ============================================================
   零零导航 · 首页样式
   布局：顶部栏 + 左侧分类菜单 + 右侧卡片网格（移动端抽屉）
   ============================================================ */

/* ---------- 顶部栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 28px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px var(--shadow-color);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  font-size: 20px;
  background: var(--card-bg-soft);
  border: 1px solid var(--border);
  transition: transform 0.15s ease;
}
.menu-toggle:active { transform: scale(0.92); }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  font-size: 2.2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px var(--shadow-color));
  animation: logo-swing 3.5s ease-in-out infinite;
  transform-origin: 50% 0;
}

@keyframes logo-swing {
  0%, 100% { transform: rotate(-6deg); }
  50% { transform: rotate(6deg); }
}

.brand-text { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.brand-text strong {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text small {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 低调的小搜索框 */
.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--card-bg-soft);
  border: 1px solid var(--border);
  opacity: 0.75;
  transition: opacity 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: text;
}
.search-box:hover { opacity: 1; }
.search-box:focus-within {
  opacity: 1;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  background: var(--card-bg);
}
.search-icon { font-size: 0.85rem; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 130px;
  font-size: 0.88rem;
  color: var(--text);
}
.search-box input::placeholder { color: var(--text-faint); }

.login-entry {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--card-bg);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.login-entry:hover {
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--shadow-color);
  transform: translateY(-1px);
}

/* ---------- 布局 ---------- */
.layout {
  display: flex;
  align-items: flex-start;
  max-width: 1400px;
  margin: 0 auto;
  padding: 22px 22px 40px;
  gap: 22px;
}

/* ---------- 左侧分类菜单 ---------- */
.sidebar {
  position: sticky;
  top: 92px;
  flex: 0 0 208px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding: 18px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 4px 16px var(--shadow-color);
}

.sidebar-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  padding: 0 10px 10px;
}

.type-menu li {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  margin-bottom: 4px;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
}

.type-menu li:hover {
  background: var(--card-bg-soft);
  color: var(--text);
  transform: translateX(3px);
}

.type-menu li.active {
  background: var(--primary-light);
  color: var(--text);
  font-weight: 800;
  box-shadow: inset 0 0 0 1.5px var(--primary);
}

.type-menu li .menu-emoji { font-size: 1.05rem; }

.type-menu li .menu-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.type-menu li .menu-count {
  font-size: 0.72rem;
  font-weight: 800;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg-soft);
  color: var(--text-secondary);
}
.type-menu li.active .menu-count {
  background: var(--primary);
  color: var(--on-primary);
}

.menu-loading { color: var(--text-faint); justify-content: center; }

.sidebar-mask { display: none; }

/* 抽屉内主题区：桌面端隐藏（桌面用顶栏色点） */
.drawer-theme { display: none; }

.drawer-theme-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  padding: 0 2px 10px;
}

/* ---------- 右侧卡片区 ---------- */
.content { flex: 1; min-width: 0; }

/* 分组区块：组与组之间留白分隔，锚点定位时避开 sticky 顶栏 */
.group-section {
  margin-bottom: 44px;
  scroll-margin-top: 96px;
}
.group-section:last-child { margin-bottom: 0; }

.group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding: 0 4px;
}

.group-emoji {
  font-size: 1.35rem;
  line-height: 1;
  filter: drop-shadow(0 2px 3px var(--shadow-color));
}

.group-name {
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.group-count {
  font-size: 0.75rem;
  font-weight: 800;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--text);
}

/* 分组标题右侧的渐变装饰线，强化组间分隔感 */
.group-line {
  flex: 1;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--border), transparent);
}

.group-empty {
  padding: 18px 8px;
  color: var(--text-faint);
  font-size: 0.9rem;
  border: 1.5px dashed var(--border);
  border-radius: 16px;
  text-align: center;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

/* 骨架分组标题 */
.skeleton-group-title {
  width: 180px;
  height: 26px;
  border-radius: 8px;
}

/* 网站卡片（小巧版：更高信息密度） */
.site-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 13px;
  border-radius: 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--tile-color, var(--primary));
  box-shadow: 0 3px 12px var(--shadow-color);
  cursor: pointer;
  overflow: hidden;
  animation: card-in 0.35s ease backwards;
}

.site-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px var(--shadow-strong);
  border-color: var(--tile-color, var(--primary));
}

.site-card:active { transform: translateY(-2px) scale(0.99); }

@keyframes card-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.site-card .card-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 首字符圆形头像 */
.site-avatar {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 900;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  background: var(--tile-color, var(--primary));
  box-shadow: 0 3px 8px var(--shadow-color);
}

.site-title {
  font-size: 0.92rem;
  font-weight: 800;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.site-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.35em;
}

.site-url {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-card:hover .site-url { color: var(--primary); }

/* 分类角标：分组展示场景下组名已是分类，角标信息冗余且小卡片上会遮挡标题 → 隐藏
   （JS 仍正常渲染该节点，想恢复时删掉 display:none 即可） */
.site-tag {
  display: none;
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 0.64rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--card-bg-soft);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* 骨架卡片 */
.skeleton-card { height: 118px; }

/* ---------- 页脚 ---------- */
.footer {
  text-align: center;
  padding: 10px 16px 28px;
  color: var(--text-faint);
  font-size: 0.82rem;
}

/* ---------- 响应式：平板 ---------- */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); }
  .sidebar { flex-basis: 184px; }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 768px) {
  .topbar { padding: 10px 14px; gap: 10px; }
  .menu-toggle { display: block; }
  .brand-text small { display: none; }
  .brand-text strong { font-size: 1.15rem; }
  .brand-logo { font-size: 1.8rem; }
  .search-box input { width: 96px; }
  .login-entry { padding: 0 12px; font-size: 0.82rem; }

  .layout { padding: 16px 14px 32px; }

  /* 侧边栏变抽屉 */
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 300;
    width: 240px;
    max-height: none;
    border-radius: 0 22px 22px 0;
    transform: translateX(-105%);
    transition: transform 0.28s cubic-bezier(0.34, 1.2, 0.64, 1);
    padding-top: 26px;
    display: flex;
    flex-direction: column;
  }
  .sidebar.open { transform: translateX(0); }

  .sidebar nav { flex: 1; overflow-y: auto; }

  /* 移动端：顶栏色点收起，主题切换改到抽屉底部 */
  .theme-dots-topbar { display: none; }
  .drawer-theme {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 12px;
    padding: 14px 8px 12px;
    border-top: 1.5px dashed var(--border);
  }
  .drawer-theme-title { padding-bottom: 0; }

  .sidebar-mask {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 250;
    background: var(--mask);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }
  .sidebar-mask.show { opacity: 1; pointer-events: auto; }

  /* 小卡片后移动端也可双列展示，信息密度与桌面一致 */
  .card-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .site-card { padding: 11px; }
  .site-desc { font-size: 0.76rem; min-height: 2.3em; }
  .site-url { font-size: 0.68rem; }

  /* 移动端分组更紧凑 */
  .group-section { margin-bottom: 30px; scroll-margin-top: 76px; }
  .group-name { font-size: 1.06rem; }
  .group-emoji { font-size: 1.15rem; }
}

@media (max-width: 380px) {
  .search-box { display: none; }
}