:root {
  --component-tab-shadow: 0 1px 2px var(--color-shadow-faint), 0 6px 18px var(--color-shadow-soft);
  --component-fab-shadow: 0 16px 42px var(--color-shadow-brand), 0 4px 12px var(--color-shadow-soft);
}

.tab-set {
  min-width: 0;
}

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 5px;
  margin-bottom: 28px;
  padding: 5px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  scrollbar-width: thin;
  overscroll-behavior-inline: contain;
}

.tab-list [role="tab"] {
  min-height: 42px;
  flex: 1 0 auto;
  padding: 8px 18px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-soft);
  font-weight: 650;
  cursor: pointer;
}

.tab-list [role="tab"]:hover {
  color: var(--color-ink);
}

.tab-list [role="tab"].is-active,
.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-canvas);
  color: var(--color-brand-strong);
  box-shadow: var(--component-tab-shadow);
}

.tab-panel {
  color: var(--color-ink);
}

.tab-panel[hidden] {
  display: none;
}

.toc-tabs {
  position: sticky;
  z-index: 30;
  top: 12px;
  display: flex;
  max-width: 100%;
  gap: 6px;
  margin-bottom: 36px;
  padding: 7px;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  scrollbar-width: thin;
  overscroll-behavior-inline: contain;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 40px;
  flex: 0 0 auto;
  align-items: center;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  color: var(--color-ink-soft);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.toc-tabs a:hover {
  background: var(--color-panel-warm);
  color: var(--color-ink);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: clip;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.faq-item summary {
  position: relative;
  display: block;
  padding: 20px 54px 20px 22px;
  color: var(--color-ink);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 21px;
  color: var(--color-brand-strong);
  font-size: 22px;
  line-height: 1;
  content: "+";
  transform: translateY(-50%);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--color-ink-soft);
}

.faq-answer > :last-child {
  margin-bottom: 0;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.term-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.term-card::before {
  position: absolute;
  top: 26px;
  left: 0;
  width: 4px;
  height: 28px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--color-brand);
  content: "";
}

.term-card h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.term-card p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.client-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

.client-card.is-featured {
  border-color: var(--color-brand);
  background: var(--color-panel-warm);
  color: var(--color-ink);
}

.client-card-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.client-card-icon {
  width: 54px;
  height: 54px;
  flex: 0 0 auto;
}

.client-card-title {
  flex: 1 1 auto;
}

.client-card-title h3 {
  margin-bottom: 5px;
  font-size: 21px;
}

.client-card p {
  color: var(--color-ink-soft);
}

.client-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
}

.version-slot:empty {
  display: none;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 27px;
  align-items: center;
  padding: 4px 10px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-ink);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.3;
}

.badge-featured {
  border-color: var(--color-brand-strong);
  background: var(--color-brand-strong);
  color: var(--color-white-text);
}

.badge-recommended {
  border-color: var(--color-brand);
  background: var(--color-panel-warm);
  color: var(--color-brand-strong);
}

.badge-archived {
  border-color: var(--color-danger);
  background: var(--color-canvas);
  color: var(--color-danger);
}

.badge-success {
  border-color: var(--color-success);
  background: var(--color-canvas);
  color: var(--color-success);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 25px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.post-card:hover {
  color: var(--color-ink);
  transform: translateY(-3px);
  box-shadow: var(--shadow-deep);
}

.post-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 15px;
  color: var(--color-ink-soft);
  font-size: 13px;
}

.post-card h3 {
  margin-bottom: 11px;
  font-size: 20px;
}

.post-card p {
  margin-bottom: 18px;
  color: var(--color-ink-soft);
}

.post-card-link {
  margin-top: auto;
  color: var(--color-brand-strong);
  font-weight: 700;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 22px 24px 22px 28px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel-warm);
  color: var(--color-ink);
}

.callout::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 4px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--color-brand);
  content: "";
}

.callout-title {
  display: block;
  margin-bottom: 6px;
  color: var(--color-ink);
  font-weight: 750;
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout-success {
  background: var(--color-canvas);
  color: var(--color-ink);
}

.callout-success::before {
  background: var(--color-success);
}

.callout-warning {
  background: var(--color-panel);
  color: var(--color-ink);
}

.callout-warning::before {
  background: var(--color-warning);
}

.article-download {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 48px;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  background: var(--color-panel-warm);
  color: var(--color-ink);
}

.article-download h2,
.article-download p {
  margin-bottom: 6px;
}

.dl-fab {
  position: fixed;
  z-index: 80;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  max-width: min(310px, calc(100vw - 36px));
  min-height: 60px;
  align-items: center;
  gap: 12px;
  padding: 10px 18px 10px 11px;
  border: 1px solid var(--color-brand-strong);
  border-radius: var(--radius-pill);
  background: var(--color-brand-strong);
  color: var(--color-white-text);
  box-shadow: var(--component-fab-shadow);
  text-decoration: none;
}

.dl-fab:hover {
  background: var(--color-ink);
  color: var(--color-white-text);
}

.dl-fab-icon {
  display: inline-flex;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-canvas);
  color: var(--color-brand-strong);
}

.dl-fab-icon svg {
  width: 19px;
  height: 19px;
}

.dl-fab-copy {
  display: grid;
  line-height: 1.25;
}

.dl-fab-copy strong {
  color: var(--color-white-text);
  font-size: 14px;
}

.dl-fab-copy small {
  color: var(--color-white-text);
  font-size: 12px;
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 900px) {
  .post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .client-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .tab-list {
    border-radius: var(--radius-card);
  }

  .toc-tabs {
    position: static;
    border-radius: var(--radius-card);
  }

  .glossary-grid,
  .post-grid {
    grid-template-columns: 1fr;
  }

  .client-card,
  .post-card,
  .term-card {
    padding: 20px;
  }

  .article-download {
    grid-template-columns: 1fr;
  }

  .dl-fab {
    right: 18px;
    bottom: 18px;
  }
}