.tab-shell {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  overflow: clip;
}

.tab-list {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel-alt);
  color: var(--color-text);
  padding: 10px;
}

.tab-list [role="tab"] {
  flex: 0 0 auto;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-clear);
  color: var(--color-muted);
  padding: 9px 17px;
  font-weight: 720;
}

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

.tab-list [role="tab"][aria-selected="true"],
.tab-list [role="tab"].is-active {
  border-color: var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.tab-panel {
  padding: clamp(22px, 4vw, 40px);
}

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

.jump-nav {
  position: sticky;
  z-index: 20;
  top: 12px;
  display: flex;
  max-width: 100%;
  gap: 7px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: 7px;
}

.jump-nav a {
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 680;
}

.jump-nav a:hover {
  background: var(--color-panel-alt);
  color: var(--color-text);
}

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

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.faq-item summary {
  position: relative;
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 14px;
  padding: 16px 52px 16px 20px;
  cursor: pointer;
  font-weight: 780;
  list-style: none;
}

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

.faq-item summary::after {
  position: absolute;
  right: 20px;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--color-muted);
  border-bottom: 2px solid var(--color-muted);
  content: "";
  transform: rotate(45deg) translateY(-3px);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

.faq-answer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: 18px 20px 4px;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.term-card {
  border: 1px solid var(--color-edge-blue);
  border-radius: var(--radius-large);
  background: var(--color-tint-blue);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: 24px;
}

.term-card dt {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 820;
}

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

.term-category {
  display: inline-flex;
  margin-bottom: 12px;
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.download-grid {
  display: grid;
  gap: 18px;
}

.download-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 18px;
  border: 1px solid var(--color-edge-orange);
  border-radius: var(--radius-large);
  background: var(--color-tint-orange);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: clamp(20px, 3vw, 30px);
}

.app-logo {
  width: 56px;
  height: 56px;
}

.download-card-copy p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px;
}

.badge {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 760;
  overflow-wrap: anywhere;
}

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

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

.badge-retired {
  border-color: var(--color-border);
  background: var(--color-panel-alt);
  color: var(--color-muted);
}

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

.article-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  border: 1px solid var(--color-edge-pink);
  border-radius: var(--radius-large);
  background: var(--color-tint-pink);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: clamp(22px, 3vw, 30px);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 14px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.article-card h3 {
  font-size: clamp(20px, 2vw, 25px);
}

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

.article-card .text-link {
  margin-top: auto;
}

.callout {
  position: relative;
  border: 1px solid var(--color-edge-blue);
  border-left: 5px solid var(--color-accent);
  border-radius: var(--radius-medium);
  background: var(--color-tint-blue);
  color: var(--color-text);
  padding: 18px 20px;
}

.callout strong:first-child {
  display: block;
  margin-bottom: 5px;
}

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

.callout-warning {
  border-color: var(--color-edge-orange);
  border-left-color: var(--color-warning);
  background: var(--color-tint-orange);
  color: var(--color-text);
}

.callout-success {
  border-color: var(--color-edge-blue);
  border-left-color: var(--color-success);
  background: var(--color-tint-blue);
  color: var(--color-text);
}

.dl-fab {
  position: fixed;
  z-index: 60;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  max-width: min(330px, calc(100vw - 32px));
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-edge-orange);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-fab);
  padding: 12px 16px;
}

.dl-fab:hover {
  border-color: var(--color-accent);
}

.dl-fab-icon {
  display: grid;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 12px;
  background: var(--color-accent);
  color: var(--color-panel);
}

.dl-fab-icon svg {
  width: 20px;
  height: 20px;
}

.dl-fab-copy {
  display: grid;
  line-height: 1.35;
}

.dl-fab-copy strong {
  font-size: 14px;
}

.dl-fab-copy span {
  color: var(--color-muted);
  font-size: 12px;
}

.story-stack {
  display: grid;
  gap: 26px;
}

.story-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 58px);
  border: 1px solid var(--color-edge-pink);
  border-radius: var(--radius-large);
  background: var(--color-tint-pink);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: clamp(28px, 5vw, 54px);
}

.story-card:nth-child(3n+2) {
  border-color: var(--color-edge-blue);
  background: var(--color-tint-blue);
  color: var(--color-text);
}

.story-card:nth-child(3n) {
  border-color: var(--color-edge-orange);
  background: var(--color-tint-orange);
  color: var(--color-text);
}

.story-card:nth-child(even) .story-visual {
  order: -1;
}

.story-copy p {
  color: var(--color-muted);
}

.interface-window {
  overflow: clip;
  border: 1px solid var(--color-window-border);
  border-radius: 18px;
  background: var(--color-window);
  color: var(--color-window-text);
  box-shadow: var(--shadow-window);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--color-window-border);
  background: var(--color-window-alt);
  color: var(--color-window-text);
  padding: 12px 16px;
}

.window-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: 50%;
}

.dot-error {
  background: var(--color-error);
}

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

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

.window-title,
.window-pill,
.interface-row {
  font-family: var(--font-mono);
}

.window-title {
  margin-left: 7px;
  color: var(--color-window-muted);
  font-size: 12px;
}

.window-pill {
  margin-left: auto;
  border: 1px solid var(--color-window-border);
  border-radius: var(--radius-pill);
  color: var(--color-window-muted);
  padding: 2px 9px;
  font-size: 11px;
}

.window-tabs {
  display: flex;
  gap: 3px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-window-border);
  padding: 10px 15px 0;
}

.window-tabs span {
  flex: 0 0 auto;
  border-bottom: 2px solid transparent;
  color: var(--color-window-muted);
  padding: 6px 10px 8px;
  font-size: 12px;
}

.window-tabs .is-active {
  border-bottom-color: var(--color-accent);
  color: var(--color-window-text);
}

.interface-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--color-window-border);
  padding: 10px 16px;
  color: var(--color-window-text);
  font-size: 12px;
}

.interface-row:first-child {
  border-top: 0;
}

.interface-note {
  display: block;
  color: var(--color-window-muted);
  font-size: 10px;
}

.route-state {
  flex-shrink: 0;
  border: 1px solid var(--color-window-border);
  border-radius: var(--radius-pill);
  padding: 3px 9px;
}

.route-direct {
  color: var(--color-window-success);
}

.route-proxy {
  color: var(--color-window-accent);
}

.route-block {
  color: var(--color-window-error);
}

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

.end-download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid var(--color-edge-orange);
  border-radius: var(--radius-large);
  background: var(--color-tint-orange);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
  padding: clamp(22px, 4vw, 36px);
}

@media (max-width: 760px) {
  .glossary-grid,
  .article-grid,
  .story-card {
    grid-template-columns: 1fr;
  }

  .story-card:nth-child(even) .story-visual {
    order: initial;
  }

  .download-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .download-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  .end-download-card {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .dl-fab {
    right: 12px;
    bottom: 12px;
    left: 12px;
    max-width: none;
  }

  .app-logo {
    width: 48px;
    height: 48px;
  }
}