.tabs {
  min-width: 0;
}

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 0;
  overflow-x: auto;
  border-bottom: var(--line) solid var(--color-border);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.tab-button {
  position: relative;
  min-width: max-content;
  min-height: 48px;
  flex: 0 0 auto;
  border: 0;
  background: var(--color-transparent);
  color: var(--color-text-muted);
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.tab-button:hover,
.tab-button[aria-selected="true"],
.tab-button.is-active {
  color: var(--color-text);
}

.tab-button[aria-selected="true"]::after,
.tab-button.is-active::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: -1px;
  left: 14px;
  height: 3px;
  background: var(--color-accent);
}

.tab-panel {
  padding-top: var(--space-5);
}

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

.lab-tabs {
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(0, 1.8fr);
  gap: clamp(28px, 6vw, 72px);
}

.lab-tab-list {
  display: flex;
  flex-direction: column;
  border-left: var(--line) solid var(--color-border);
}

.lab-tab-list .tab-button {
  width: 100%;
  min-width: 0;
  justify-content: flex-start;
  text-align: left;
  white-space: normal;
  padding: 18px 16px 18px 24px;
}

.lab-tab-list .tab-button::after {
  top: 50%;
  right: auto;
  bottom: auto;
  left: -1px;
  width: 4px;
  height: 22px;
  transform: translateY(-50%);
}

.lab-tab-index {
  display: block;
  margin-bottom: 4px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.lab-detail {
  position: relative;
  min-height: 330px;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: clamp(28px, 5vw, 56px);
}

.lab-detail::before {
  content: "";
  position: absolute;
  top: 24px;
  right: 32px;
  left: 32px;
  height: 1px;
  background: var(--color-text);
}

.lab-rule {
  display: block;
  margin-top: 18px;
  margin-bottom: var(--space-5);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-align: right;
}

.toc {
  position: sticky;
  z-index: 20;
  top: 10px;
  display: flex;
  max-width: 100%;
  gap: 8px;
  overflow-x: auto;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 8px;
  -webkit-overflow-scrolling: touch;
}

.toc a {
  min-width: max-content;
  border-radius: var(--radius-sm);
  padding: 8px 13px;
  color: var(--color-text-muted);
  font-size: 14px;
  text-decoration: none;
}

.toc a:hover {
  background: var(--color-panel-raised);
  color: var(--color-text);
}

.faq-list {
  border-top: var(--line) solid var(--color-border);
}

.faq-item {
  border-bottom: var(--line) solid var(--color-border);
}

.faq-item summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  color: var(--color-text);
  padding: 22px 48px 22px 0;
  font-size: 18px;
  font-weight: 600;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 20px;
  right: 8px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 400;
}

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

.faq-answer {
  max-width: 800px;
  padding: 0 48px 24px 0;
  color: var(--color-text-muted);
}

.term-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.term-card {
  min-width: 0;
  border-top: 3px solid var(--color-accent);
  border-right: var(--line) solid var(--color-border);
  border-bottom: var(--line) solid var(--color-border);
  border-left: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: var(--space-5);
}

.term-card dt {
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 24px;
}

.term-card dd {
  margin: 0;
  color: var(--color-text-muted);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.download-card {
  position: relative;
  min-width: 0;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: clamp(22px, 4vw, 34px);
}

.download-card.is-featured {
  border-top: 4px solid var(--color-accent);
}

.download-card-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.download-card-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.download-card-title {
  min-width: 0;
}

.download-card-title h3 {
  margin-bottom: 4px;
}

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

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.badge {
  display: inline-flex;
  max-width: 100%;
  min-height: 25px;
  align-items: center;
  overflow: hidden;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.35;
  white-space: nowrap;
}

.badge-featured,
.badge-recommended {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-panel);
}

.badge-retired {
  border-color: var(--color-error);
  background: var(--color-panel);
  color: var(--color-text);
}

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

.badge-warning {
  border-color: var(--color-warning);
  background: var(--color-panel);
  color: var(--color-text);
}

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

.post-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: var(--space-5);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.post-card h3 {
  font-size: 23px;
}

.post-card p {
  color: var(--color-text-muted);
}

.post-card-link {
  margin-top: auto;
  color: var(--color-text);
  font-weight: 600;
}

.callout {
  position: relative;
  margin: var(--space-5) 0;
  border: var(--line) solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--color-panel);
  color: var(--color-text);
  padding: var(--space-4) var(--space-5);
}

.callout-title {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

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

.callout-success {
  border-left-color: var(--color-success);
}

.callout-warning {
  border-left-color: var(--color-warning);
}

.callout-error {
  border-left-color: var(--color-error);
}

.end-download-card {
  margin-top: var(--space-7);
  border-top: 4px solid var(--color-accent);
  border-right: var(--line) solid var(--color-border);
  border-bottom: var(--line) solid var(--color-border);
  border-left: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-text);
  padding: clamp(24px, 5vw, 44px);
}

.end-download-card p {
  color: var(--color-text-muted);
}

.dl-fab {
  position: fixed;
  z-index: 80;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  display: flex;
  width: min(310px, calc(100vw - 32px));
  min-height: 68px;
  align-items: center;
  gap: 13px;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-text);
  color: var(--color-panel);
  padding: 12px 16px;
  text-decoration: none;
}

.dl-fab:hover {
  border-color: var(--color-accent);
  color: var(--color-panel);
  text-decoration: none;
}

.dl-fab-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--color-accent);
  color: var(--color-panel);
}

.dl-fab-icon svg {
  width: 21px;
  height: 21px;
}

.dl-fab-copy {
  min-width: 0;
  line-height: 1.35;
}

.dl-fab-copy strong,
.dl-fab-copy span {
  display: block;
  color: var(--color-panel);
}

.dl-fab-copy span {
  margin-top: 3px;
  font-size: 13px;
}

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

.platform-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.platform-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  padding: 9px 12px;
  text-decoration: none;
}

.platform-link:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  text-decoration: none;
}

.platform-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

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

  .lab-tab-list {
    flex-direction: row;
    overflow-x: auto;
    border-bottom: var(--line) solid var(--color-border);
    border-left: 0;
  }

  .lab-tab-list .tab-button {
    width: auto;
    min-width: 170px;
  }

  .lab-tab-list .tab-button::after {
    top: auto;
    right: 14px;
    bottom: -1px;
    left: 14px;
    width: auto;
    height: 3px;
    transform: none;
  }

  .post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .term-grid,
  .download-grid,
  .post-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .lab-detail {
    min-height: 0;
    padding: 26px 20px;
  }

  .lab-detail::before {
    right: 20px;
    left: 20px;
  }

  .toc {
    top: 4px;
  }

  .faq-item summary {
    padding-right: 38px;
    font-size: 17px;
  }

  .faq-answer {
    padding-right: 0;
  }

  .dl-fab {
    right: 12px;
    bottom: 12px;
    width: calc(100vw - 24px);
  }
}