/* YH Blog — 共享主导航（下拉 / 高亮 / 移动端折叠）
 * 默认前缀 site-nav-*；主题可通过 nav_class_prefix 使用自有前缀并在 main.css 覆盖配色
 */

.site-nav-link,
.site-nav-dropdown-link {
  text-decoration: none;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  color: var(--site-nav-muted, var(--color-muted, #71717a));
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius, 8px);
  font-size: 0.9rem;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}

.site-nav-link:hover,
.site-nav-link.is-active,
.site-nav-dropdown-link.is-active {
  color: var(--site-nav-active, var(--color-text, #111));
}

.site-nav-link:hover,
.site-nav-link.is-active {
  background: var(
    --site-nav-active-bg,
    color-mix(in srgb, var(--color-primary, #6366f1) 8%, transparent)
  );
}

.site-nav-caret {
  font-size: 0.95rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.site-nav-group {
  position: relative;
}

.site-nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 10rem;
  padding: 0.35rem;
  background: var(--site-nav-dropdown-bg, var(--color-surface, #fff));
  border: 1px solid var(--site-nav-dropdown-border, var(--color-border, rgba(0, 0, 0, 0.1)));
  border-radius: var(--radius, 8px);
  box-shadow: var(--site-nav-dropdown-shadow, 0 12px 40px rgba(0, 0, 0, 0.12));
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 120;
}

.site-nav-group:hover .site-nav-dropdown,
.site-nav-group:focus-within .site-nav-dropdown,
.site-nav-group.is-open .site-nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav-group:hover .site-nav-caret,
.site-nav-group.is-open .site-nav-caret {
  transform: rotate(180deg);
}

.site-nav-dropdown-link {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: calc(var(--radius, 8px) - 2px);
  color: var(--site-nav-dropdown-fg, var(--color-text, #111));
  font-size: 0.88rem;
}

.site-nav-dropdown-link:hover,
.site-nav-dropdown-link.is-active {
  color: var(--site-nav-active, var(--color-primary, #6366f1));
  background: var(
    --site-nav-active-bg,
    color-mix(in srgb, var(--color-primary, #6366f1) 8%, transparent)
  );
}

/* 标准顶栏：导航区 + 折叠菜单（#site-nav.open） */
@media (max-width: 768px) {
  #site-nav.open > .site-nav-menu,
  #site-nav.is-open > .site-nav-menu,
  #site-nav.open.site-nav-panel,
  #site-nav.is-open.site-nav-panel {
    display: flex;
  }

  #site-nav:not(.open):not(.is-open) > .site-nav-menu {
    display: none;
  }

  #site-nav.open,
  #site-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  #site-nav.open .site-nav-menu,
  #site-nav.is-open .site-nav-menu,
  #site-nav.open:not(:has(.site-nav-menu)),
  #site-nav.is-open:not(:has(.site-nav-menu)) {
    order: 10;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border, rgba(0, 0, 0, 0.1));
  }

  #site-nav.open .site-nav-link,
  #site-nav.is-open .site-nav-link {
    width: 100%;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border, rgba(0, 0, 0, 0.08));
    background: transparent;
  }

  #site-nav.open .site-nav-group,
  #site-nav.is-open .site-nav-group {
    width: 100%;
  }

  #site-nav.open .site-nav-dropdown,
  #site-nav.is-open .site-nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    padding: 0 0 0 0.75rem;
    display: none;
    background: transparent;
  }

  #site-nav.open .site-nav-group.is-open .site-nav-dropdown,
  #site-nav.is-open .site-nav-group.is-open .site-nav-dropdown {
    display: block;
  }

  #site-nav.open .site-nav-dropdown-link,
  #site-nav.is-open .site-nav-dropdown-link {
    padding: 0.55rem 0.25rem;
    border-bottom: 1px solid var(--color-border, rgba(0, 0, 0, 0.08));
  }
}

/* 侧栏抽屉内导航（农业 / 禅意 / 旅行等） */
.site-nav-drawer .site-nav-menu {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  width: 100%;
}

.site-nav-drawer .site-nav-link {
  width: 100%;
  padding: 0.75rem 0;
  font-size: 1.05rem;
  border-radius: 0;
  border-bottom: 1px solid var(--color-border, rgba(0, 0, 0, 0.1));
  background: transparent;
}

.site-nav-drawer .site-nav-group {
  width: 100%;
}

.site-nav-drawer .site-nav-dropdown {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  border: 0;
  padding: 0 0 0 0.75rem;
  display: none;
  background: transparent;
}

.site-nav-drawer .site-nav-group.is-open .site-nav-dropdown {
  display: block;
}

.site-nav-drawer .site-nav-dropdown-link {
  padding: 0.55rem 0.25rem;
  border-bottom: 1px solid var(--color-border, rgba(0, 0, 0, 0.08));
}

@media (min-width: 900px) {
  .site-nav-drawer .site-nav-menu {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.15rem 0.25rem;
  }

  .site-nav-drawer .site-nav-link {
    width: auto;
    padding: 0.45rem 0.75rem;
    font-size: 0.92rem;
    border-bottom: none;
    border-radius: var(--radius, 8px);
  }

  .site-nav-drawer .site-nav-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    padding: 0.35rem;
    border: 1px solid var(--site-nav-dropdown-border, var(--color-border, rgba(0, 0, 0, 0.1)));
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
  }

  .site-nav-drawer .site-nav-group:hover .site-nav-dropdown,
  .site-nav-drawer .site-nav-group:focus-within .site-nav-dropdown,
  .site-nav-drawer .site-nav-group.is-open .site-nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav-drawer .site-nav-group.is-open .site-nav-dropdown {
    display: block;
  }

  .site-nav-drawer .site-nav-dropdown-link {
    padding: 0.5rem 0.75rem;
    border-bottom: none;
  }
}