.page-header {
  margin-bottom: 0;
}

#tag-nav {
  position: sticky;
  top: 0;
  background: #fff;
  padding: 2rem 0;
  border-bottom: 1px solid #ccc;
  margin-bottom: 2rem;
  z-index: 10;
}

.tag-nav-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 0.5rem;
  align-items: baseline;
}

.tag-nav-label {
  line-height: 1.2;
}

.tag-nav-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-width: 0;
}

.tag-btn {
  margin: 0;
  cursor: pointer;
}

.tag-btn:disabled {
  cursor: default;
}

.site-item {
  margin-bottom: 2.5rem;
}

.site-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0.4rem;
}

.site-item h3 {
  font-size: 1.45rem;
  margin: 0;
}

.favicon {
  width: 32px;
  height: 32px;
  border-radius: 4px;
}

.rss-btn {
  cursor: pointer;
  font-size: 0.7rem;
  padding: 2px 6px;
  line-height: 1.2;
  align-self: center;
}

.site-item p {
  margin-top: 0;
  font-size: 1.05rem;
}

@media (max-width: 40rem) {
  .tag-nav-layout {
    grid-template-columns: 1fr;
    row-gap: 0.35rem;
    align-items: start;
  }

  .tag-nav-options {
    width: 100%;
  }
}

@media (prefers-color-scheme: dark) {
  #tag-nav {
    background-color: #121212;
    border-bottom-color: #333;
  }

  .tag-btn:disabled {
    background-color: #121212;
    color: #777;
    border-color: #333;
  }
}