/* ════════════════════════════════════════════════════════════════
   Purple Ice · V1 site chrome — routed docs shell
   Sidebar + topbar + home + index pages + search + changelog.
   Dogfoods tokens.css exclusively. All classes prefixed .st- to
   avoid collision with section-internal styles in design-system.html.
   ════════════════════════════════════════════════════════════════ */

/* ── Shell layout ─────────────────────────────────────────────── */

.st-shell {
  min-height: 100vh;
}

.st-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 264px;
  display: flex;
  flex-direction: column;
  background: var(--color-surface-base);
  border-right: var(--border-sm) solid var(--color-border-subtle);
  z-index: var(--z-sticky);
  transition: transform var(--duration-slow) var(--easing-standard);
}

.st-main {
  margin-left: 264px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.st-content {
  flex: 1 0 auto;
}

/* ── Sidebar: brand ───────────────────────────────────────────── */

.st-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-sm) solid var(--color-border-subtle);
  color: var(--color-text-primary);
}
.st-brand:hover { text-decoration: none; }
.st-brand__dot {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-round);
  background: linear-gradient(135deg, var(--color-purple-800), var(--color-purple-850));
  box-shadow: 0 0 0 2px var(--color-surface-brand);
  flex-shrink: 0;
}
.st-brand__meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.st-brand__name {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.st-brand__sub {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}
.st-brand__ver {
  margin-left: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-brand);
  background: var(--color-surface-brand);
  padding: 2px var(--space-2);
  border-radius: var(--radius-round);
  flex-shrink: 0;
}

/* ── Sidebar: search trigger ──────────────────────────────────── */

.st-search-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-3) var(--space-4) var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-8);
  background: var(--color-surface-subtle);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  cursor: pointer;
  transition: var(--transition-color);
  text-align: left;
}
.st-search-trigger:hover {
  border-color: var(--color-border-default);
  color: var(--color-text-secondary);
}
.st-search-trigger__label { flex: 1 1 auto; }
.st-search-trigger__kbd {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
  background: var(--color-surface-base);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-4);
  padding: 1px 6px;
}

/* ── Sidebar: nav ─────────────────────────────────────────────── */

.st-nav {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: var(--space-2) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.st-nav__group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.st-nav__group-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3) var(--space-1);
}
a.st-nav__group-label:hover {
  color: var(--color-text-brand);
  text-decoration: none;
}
.st-nav__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-3);
  border-radius: var(--radius-6);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: var(--transition-color);
  position: relative;
}
.st-nav__item:hover {
  background: var(--color-surface-subtle);
  color: var(--color-text-primary);
  text-decoration: none;
}
.st-nav__item.is-active {
  background: var(--color-surface-brand);
  color: var(--color-text-brand);
}
.st-nav__item.is-active::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: var(--radius-2);
  background: var(--color-brand-primary);
}
.st-nav__item-badge {
  margin-left: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--color-text-muted);
}

/* ── Sidebar: footer + edit toggle ────────────────────────────── */

.st-sidefoot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-top: var(--border-sm) solid var(--color-border-subtle);
}
.st-sidefoot__text {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}
.st-edit-toggle {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-6);
  color: var(--color-text-muted);
  opacity: 0.4;
  cursor: pointer;
  transition: var(--transition-color), opacity var(--duration-fast) var(--easing-standard);
}
.st-edit-toggle:hover { opacity: 1; color: var(--color-text-secondary); }
.st-edit-toggle.is-on {
  opacity: 1;
  color: var(--color-text-brand);
  background: var(--color-surface-brand);
}

/* ── Topbar ───────────────────────────────────────────────────── */

.st-topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-raised);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: color-mix(in srgb, var(--color-surface-base) 90%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: var(--border-sm) solid var(--color-border-subtle);
  min-height: 56px;
}
.st-topbar__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}
.st-topbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.st-menu-btn {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-6);
  color: var(--color-text-secondary);
  cursor: pointer;
}
.st-menu-btn:hover { background: var(--color-surface-subtle); }

.st-crumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-base);
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
}
.st-crumbs a {
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}
.st-crumbs a:hover { color: var(--color-text-brand); text-decoration: none; }
.st-crumbs__sep { color: var(--color-text-muted); opacity: 0.5; }
.st-crumbs__here {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  overflow: hidden;
  text-overflow: ellipsis;
}

.st-search-btn {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-6);
  color: var(--color-text-secondary);
  cursor: pointer;
}
.st-search-btn:hover { background: var(--color-surface-subtle); }

/* ── Doc page shell ───────────────────────────────────────────── */

.page--doc .section {
  border-bottom: 0;
  padding: var(--space-10) 0 var(--space-8);
}
.page--doc .section__title {
  font-size: clamp(32px, 4.5vw, 48px);
}

/* Page footer: source links + prev/next */

.st-pagefoot {
  padding: var(--space-6) 0 var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.st-pagefoot__source {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-4);
  border-top: var(--border-sm) solid var(--color-border-subtle);
}
.st-pagefoot__source a {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: var(--color-surface-subtle);
  border: var(--border-sm) solid var(--color-border-subtle);
  padding: 2px var(--space-2);
  border-radius: var(--radius-4);
  transition: var(--transition-color);
}
.st-pagefoot__source a:hover {
  color: var(--color-text-brand);
  border-color: var(--color-border-brand);
  text-decoration: none;
}
.st-pagefoot__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.st-pagefoot__link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-4) var(--space-5);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-12);
  background: var(--color-surface-base);
  color: var(--color-text-primary);
  transition: border-color var(--duration-fast) var(--easing-standard), transform var(--duration-fast) var(--easing-standard);
}
.st-pagefoot__link:hover {
  border-color: var(--color-border-brand);
  text-decoration: none;
  transform: translateY(-1px);
}
.st-pagefoot__link--next { text-align: right; grid-column: 2; }
.st-pagefoot__link--prev { grid-column: 1; }
.st-pagefoot__link-dir {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.st-pagefoot__link-title {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-brand);
}

/* ── Site footer ──────────────────────────────────────────────── */

.st-footer {
  padding: var(--space-6);
  border-top: var(--border-sm) solid var(--color-border-subtle);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ── Search modal ─────────────────────────────────────────────── */

.st-search-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-surface-overlay, rgba(17, 17, 17, 0.48));
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh var(--space-4) var(--space-4);
  animation: st-fade-in var(--duration-fast) var(--easing-standard);
}
@keyframes st-fade-in { from { opacity: 0; } to { opacity: 1; } }
.st-search {
  width: min(600px, 100%);
  background: var(--color-surface-elevated);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-16);
  box-shadow: var(--shadow-5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: st-pop-in var(--duration-base) var(--easing-emphasized);
}
@keyframes st-pop-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.99); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.st-search__row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-sm) solid var(--color-border-subtle);
  color: var(--color-text-muted);
}
.st-search__input {
  flex: 1 1 auto;
  border: 0;
  outline: none;
  background: transparent;
  font: inherit;
  font-size: var(--text-md);
  color: var(--color-text-primary);
}
.st-search__input::placeholder { color: var(--color-text-muted); }
.st-search__esc {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-4);
  padding: 1px 6px;
}
.st-search__results {
  max-height: 380px;
  overflow-y: auto;
  padding: var(--space-2);
}
.st-search__group-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3) 4px;
}
.st-search__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-8);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--duration-instant) var(--easing-standard);
}
.st-search__item.is-selected {
  background: var(--color-surface-brand);
}
.st-search__item-chip {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-4);
  border: var(--border-sm) solid var(--color-border-subtle);
  flex-shrink: 0;
}
.st-search__item-label {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.st-search__item-label--mono { font-family: "JetBrains Mono", monospace; font-size: var(--text-sm); }
.st-search__item-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.st-search__empty {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-base);
}
.st-search__hints {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-5);
  border-top: var(--border-sm) solid var(--color-border-subtle);
  font-size: 11px;
  color: var(--color-text-muted);
}
.st-search__hints kbd {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-4);
  padding: 0 4px;
  margin-right: 4px;
}

/* ── Home ─────────────────────────────────────────────────────── */

.st-home__hero {
  padding: var(--space-16) 0 var(--space-12);
}
.st-home__eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-brand);
  background: var(--color-surface-brand);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-round);
  margin-bottom: var(--space-6);
}
.st-home__title {
  font-size: clamp(52px, 8vw, 104px);
  line-height: 1;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.04em;
  margin: 0 0 var(--space-6);
  color: var(--color-text-primary);
}
.st-home__title-mark { color: var(--color-purple-800); }
.st-home__lede {
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 0 var(--space-8);
  text-wrap: pretty;
}
.st-home__ctas {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}
.st-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 48px;
  padding: 0 var(--space-6);
  border-radius: var(--radius-8);
  font-size: var(--text-md);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-md);
  transition: var(--transition-color), transform var(--duration-fast) var(--easing-standard);
}
.st-cta:hover { text-decoration: none; transform: translateY(-1px); }
.st-cta--primary {
  background: var(--color-purple-800);
  color: var(--color-purple-100);
  box-shadow: var(--shadow-button);
}
.st-cta--primary:hover { background: var(--color-purple-700); }
.st-cta--secondary {
  border: var(--border-sm) solid var(--color-purple-800);
  color: var(--color-text-brand);
}
.st-cta--secondary:hover { background: var(--color-surface-brand); }
.st-home__stats {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.st-stat {
  display: inline-flex;
  flex-direction: column;
  padding: var(--space-2) var(--space-4);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-8);
  background: var(--color-surface-base);
  min-width: 128px;
}
.st-stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.st-stat__value {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* Home sections */

.st-home__section {
  padding: var(--space-10) 0;
  border-top: var(--border-sm) solid var(--color-border-subtle);
}
.st-home__section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.st-home__section-title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
}
.st-home__section-link {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
}

/* System map cards */

.st-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
}
.st-map-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-16);
  background: var(--color-surface-base);
  color: var(--color-text-primary);
  transition: border-color var(--duration-fast) var(--easing-standard), transform var(--duration-fast) var(--easing-standard), box-shadow var(--duration-fast) var(--easing-standard);
}
.st-map-card:hover {
  border-color: var(--color-border-brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  text-decoration: none;
}
.st-map-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.st-map-card__title {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
}
.st-map-card__count {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
  background: var(--color-surface-subtle);
  padding: 2px var(--space-2);
  border-radius: var(--radius-round);
  white-space: nowrap;
}
.st-map-card__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text-secondary);
  text-wrap: pretty;
}
.st-map-card__chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
}
.st-map-card__chip {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: var(--color-surface-subtle);
  border: var(--border-sm) solid var(--color-border-subtle);
  padding: 2px var(--space-2);
  border-radius: var(--radius-round);
  transition: var(--transition-color);
}
.st-map-card:hover .st-map-card__chip { border-color: var(--color-border-default); }

/* Platform strip on home */

.st-platform-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}
.st-platform-tile {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  border-radius: var(--radius-12);
  border: var(--border-sm) solid var(--color-border-subtle);
  color: var(--color-text-primary);
  transition: transform var(--duration-fast) var(--easing-standard), box-shadow var(--duration-fast) var(--easing-standard);
}
.st-platform-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  text-decoration: none;
}
.st-platform-tile__row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.st-platform-tile__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-round);
  flex-shrink: 0;
}
.st-platform-tile__name {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
}
.st-platform-tile__badge {
  margin-left: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px var(--space-2);
  border-radius: var(--radius-round);
  background: color-mix(in srgb, currentColor 10%, transparent);
}
.st-platform-tile__meta {
  font-size: var(--text-sm);
  opacity: 0.75;
}

/* Changelog teaser row on home */

.st-changelog-teaser {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-12);
  background: var(--color-surface-subtle);
  flex-wrap: wrap;
}
.st-changelog-teaser__ver {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-brand);
}
.st-changelog-teaser__text {
  flex: 1 1 300px;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

/* ── Category index pages ─────────────────────────────────────── */

.st-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}
.st-index-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  border: var(--border-sm) solid var(--color-border-subtle);
  border-radius: var(--radius-12);
  background: var(--color-surface-base);
  color: var(--color-text-primary);
  transition: border-color var(--duration-fast) var(--easing-standard), transform var(--duration-fast) var(--easing-standard), box-shadow var(--duration-fast) var(--easing-standard);
}
.st-index-card:hover {
  border-color: var(--color-border-brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  text-decoration: none;
}
.st-index-card__glyph {
  height: 72px;
  border-radius: var(--radius-8);
  background: var(--color-surface-subtle);
  border: var(--border-sm) solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  overflow: hidden;
  padding: var(--space-3);
}
.st-index-card__title {
  margin: 0;
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
}
.st-index-card__desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-text-muted);
}
.st-index-card__count {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--color-text-muted);
}

/* Index glyph primitives */

.st-glyph-swatch { width: 22px; height: 40px; border-radius: var(--radius-4); }
.st-glyph-aa {
  font-size: 36px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-purple-800);
  letter-spacing: -0.03em;
  line-height: 1;
}
.st-glyph-bar { height: 10px; border-radius: var(--radius-2); background: linear-gradient(90deg, var(--color-purple-800), var(--color-purple-650)); }
.st-glyph-bars { display: flex; flex-direction: column; gap: 5px; width: 70%; }
.st-glyph-rounded {
  width: 56px; height: 36px;
  background: linear-gradient(135deg, var(--color-purple-800), var(--color-purple-700));
}
.st-glyph-layers { display: flex; flex-direction: column; gap: 3px; width: 60%; }
.st-glyph-layer { height: 9px; border-radius: var(--radius-2); border: var(--border-sm) solid var(--color-border-default); background: var(--color-surface-elevated); }
.st-glyph-cols { display: flex; gap: 4px; width: 70%; height: 40px; }
.st-glyph-col { flex: 1; background: color-mix(in srgb, var(--color-purple-800) 14%, transparent); border: var(--border-sm) dashed color-mix(in srgb, var(--color-purple-800) 40%, transparent); border-radius: var(--radius-2); }
.st-glyph-shadow {
  width: 52px; height: 34px;
  background: var(--color-surface-elevated);
  border-radius: var(--radius-6);
  box-shadow: var(--shadow-3);
}
.st-glyph-motion { width: 10px; height: 10px; border-radius: var(--radius-round); background: var(--color-brand-primary); animation: st-glyph-slide 1.8s var(--easing-emphasized) infinite alternate; }
@keyframes st-glyph-slide { from { transform: translateX(-22px); } to { transform: translateX(22px); } }
.st-glyph-z { display: flex; align-items: center; }
.st-glyph-z span {
  width: 30px; height: 30px;
  border-radius: var(--radius-6);
  background: var(--color-surface-elevated);
  border: var(--border-sm) solid var(--color-border-default);
  margin-left: -12px;
  box-shadow: var(--shadow-1);
}
.st-glyph-z span:first-child { margin-left: 0; }
.st-glyph-btn {
  height: 32px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-6);
  background: var(--color-purple-800);
  color: var(--color-purple-100);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  display: inline-flex;
  align-items: center;
}
.st-glyph-field {
  width: 80%;
  height: 32px;
  border-radius: var(--radius-6);
  border: var(--border-sm) solid var(--color-border-default);
  background: var(--color-surface-elevated);
  display: flex;
  align-items: center;
  padding: 0 var(--space-2);
}
.st-glyph-field span { width: 2px; height: 16px; background: var(--color-brand-primary); }
.st-glyph-chip {
  height: 24px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-4);
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  display: inline-flex;
  align-items: center;
}
.st-glyph-table { display: flex; flex-direction: column; gap: 3px; width: 75%; }
.st-glyph-table span { height: 8px; border-radius: var(--radius-2); background: var(--color-surface-elevated); border: var(--border-sm) solid var(--color-border-subtle); }
.st-glyph-table span:first-child { background: var(--color-surface-subtle); }

/* ── Changelog page ───────────────────────────────────────────── */

.st-changelog {
  display: flex;
  flex-direction: column;
  position: relative;
  padding-left: var(--space-6);
}
.st-changelog::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border-subtle);
  border-radius: var(--radius-2);
}
.st-changelog__entry {
  position: relative;
  padding: 0 0 var(--space-8);
}
.st-changelog__entry::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-6) + 1px);
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-round);
  background: var(--color-surface-base);
  border: 2px solid var(--color-neutral-300);
}
.st-changelog__entry--current::before {
  background: var(--color-purple-800);
  border-color: var(--color-purple-800);
  box-shadow: 0 0 0 3px var(--color-surface-brand);
}
.st-changelog__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}
.st-changelog__ver {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}
.st-changelog__entry--current .st-changelog__ver { color: var(--color-text-brand); }
.st-changelog__tag {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-brand);
  background: var(--color-surface-brand);
  padding: 1px var(--space-2);
  border-radius: var(--radius-round);
}
.st-changelog__summary {
  margin: 0 0 var(--space-2);
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 720px;
  text-wrap: pretty;
}
.st-changelog__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-width: 720px;
}
.st-changelog__list li {
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text-secondary);
  padding-left: var(--space-4);
  position: relative;
}
.st-changelog__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-round);
  background: var(--color-purple-800);
}

/* ── Edit-mode safety net (CSS gate in addition to JSX gate) ──── */

body:not(.ds-editing) .swatch__chip-actions { display: none; }
body:not(.ds-editing) .save-bar { display: none; }
body:not(.ds-editing) .group-edits-bar { display: none; }

/* ── Sidebar nav + search results scrollbars ────────────────── */

.st-nav,
.st-search__results {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-subtle) transparent;
}
.st-nav::-webkit-scrollbar,
.st-search__results::-webkit-scrollbar { width: 10px; }
.st-nav::-webkit-scrollbar-track,
.st-search__results::-webkit-scrollbar-track { background: transparent; }
.st-nav::-webkit-scrollbar-thumb,
.st-search__results::-webkit-scrollbar-thumb {
  background: var(--color-border-subtle);
  border-radius: var(--radius-round);
  border: 3px solid var(--color-surface-base);
}
.st-nav::-webkit-scrollbar-thumb:hover,
.st-search__results::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-default);
}

/* ── Typography family grid ───────────────────────────────────── */

.st-family-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-4);
}
.st-family-grid .family-card { grid-template-columns: 150px 1fr; }
.st-family-grid .family-card__big { font-size: 110px; }

/* ── Responsive ───────────────────────────────────────────────── */

@media (max-width: 1000px) {
  .st-sidebar {
    transform: translateX(-100%);
    box-shadow: none;
    z-index: var(--z-modal);
  }
  .st-shell.is-nav-open .st-sidebar {
    transform: translateX(0);
    box-shadow: var(--shadow-5);
  }
  .st-main { margin-left: 0; }
  .st-menu-btn { display: inline-flex; }
  .st-search-btn { display: inline-flex; }
  .st-scrim {
    position: fixed;
    inset: 0;
    background: var(--color-surface-overlay, rgba(17, 17, 17, 0.48));
    z-index: var(--z-overlay);
    border: 0;
    padding: 0;
    cursor: pointer;
    animation: st-fade-in var(--duration-fast) var(--easing-standard);
  }
}

@media (max-width: 640px) {
  .st-topbar { padding: var(--space-2) var(--space-4); }
  .st-home__hero { padding: var(--space-10) 0 var(--space-8); }
  .st-pagefoot__nav { grid-template-columns: 1fr; }
  .st-pagefoot__link--next { grid-column: 1; text-align: left; }
  .st-crumbs { display: none; }
}