/* ============================================================
   Corelith — Design System shell
   The "website" chrome that wraps every doc page.
   ============================================================ */

body.ds-doc {
  background: var(--canvas);
  min-height: 100vh;
}

/* Outer layout: top nav + (sidebar + content) */
.ds-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}
.ds-layout > * { min-width: 0; }

/* === TOP BAR === */
.ds-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.ds-topbar .ds-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.015em;
  color: var(--text-strong);
  text-decoration: none;
}
.ds-topbar .ds-brand .mark {
  width: 22px;
  height: 22px;
  color: var(--brand);
  flex: none;
}
.ds-topbar .ds-brand .ds-badge {
  margin-left: 6px;
  padding: 2px 7px;
  background: var(--surface-muted);
  border-radius: 9999px;
  font: 500 10px/1 var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ds-topbar .ds-brand { white-space: nowrap; }
.ds-topbar .ds-nav {
  display: flex;
  gap: 4px;
  margin-left: 8px;
}
.ds-topbar .ds-nav a {
  padding: 6px 10px;
  border-radius: 6px;
  font: 500 13.5px/1 var(--font-sans);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}
.ds-topbar .ds-nav a:hover {
  color: var(--text-strong);
  background: var(--surface-muted);
}
.ds-topbar .ds-nav a.current {
  color: var(--brand-strong);
  background: var(--brand-soft);
}
.ds-topbar .ds-search {
  flex: 1;
  max-width: 320px;
  margin-left: auto;
  position: relative;
}
.ds-topbar .ds-search input {
  width: 100%;
  height: 32px;
  padding: 0 12px 0 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  font: var(--type-body-sm);
  color: var(--text-body);
  outline: none;
}
.ds-topbar .ds-search input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--focus-ring-soft);
}
.ds-topbar .ds-search > [data-icon] {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
}
.ds-topbar .ds-search .kbd-hint {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font: 500 11px/1 var(--font-mono);
  color: var(--text-subtle);
  background: var(--surface-muted);
  padding: 3px 6px;
  border-radius: 4px;
}
.ds-topbar .ds-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.ds-topbar .ds-actions a {
  color: var(--text-muted);
  font: 500 13.5px/1 var(--font-sans);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
}
.ds-topbar .ds-actions a:hover { color: var(--text-strong); background: var(--surface-muted); }

/* === SIDEBAR === */
.ds-sidebar {
  position: sticky;
  top: 57px;
  align-self: start;
  height: calc(100vh - 57px);
  overflow-y: auto;
  padding: 24px 16px 32px;
  border-right: 1px solid var(--border);
  background: var(--canvas);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.ds-sidebar::-webkit-scrollbar { width: 8px; }
.ds-sidebar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
.ds-sidebar h4 {
  font: 500 11px/1 var(--font-sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin: 20px 10px 8px;
}
.ds-sidebar h4:first-child { margin-top: 0; }
.ds-sidebar a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 6px;
  font: 500 13px/1.4 var(--font-sans);
  color: var(--text-body);
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.ds-sidebar a:hover { background: var(--surface-muted); color: var(--text-strong); }
.ds-sidebar a.current {
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 500;
}
.ds-sidebar a .tag {
  margin-left: auto;
  font: 500 10px/1 var(--font-sans);
  padding: 2px 6px;
  border-radius: 9999px;
  background: var(--surface-muted);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.ds-sidebar a.current .tag { background: var(--brand); color: #fff; }
.ds-sidebar a .ds-new { color: var(--tone-success); }

/* === CONTENT === */
.ds-content {
  min-width: 0;
  padding: 48px 64px 96px;
  max-width: 1080px;
}
.ds-content.wide { max-width: 100%; }

/* Page header */
.ds-page-head {
  margin-bottom: 32px;
}
.ds-page-head .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font: var(--type-body-sm);
  color: var(--text-muted);
  margin-bottom: 12px;
}
.ds-page-head .crumbs a { color: inherit; text-decoration: none; }
.ds-page-head .crumbs a:hover { color: var(--text-strong); }
.ds-page-head .crumbs .sep { color: var(--text-subtle); }
.ds-page-head h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 44px;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0 0 12px;
  color: var(--text-strong);
}
.ds-page-head .lede {
  font: 400 18px/1.55 var(--font-sans);
  color: var(--text-muted);
  margin: 0;
  max-width: 60ch;
}
.ds-page-head .meta {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.ds-page-head .meta .meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 9999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font: var(--type-caption);
  color: var(--text-muted);
}

/* Section heading inside doc page */
.ds-h2 {
  font: 600 24px/1.3 var(--font-sans);
  letter-spacing: -0.015em;
  color: var(--text-strong);
  margin: 56px 0 4px;
}
.ds-h2:first-child { margin-top: 0; }
.ds-h2 + .ds-h2-sub {
  font: 400 15px/1.55 var(--font-sans);
  color: var(--text-muted);
  margin: 0 0 16px;
  max-width: 60ch;
}
.ds-h3 {
  font: 600 17px/1.3 var(--font-sans);
  color: var(--text-strong);
  margin: 36px 0 12px;
}

/* Specimen — the "show the component" surface */
.ds-specimen {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  overflow: clip;
  margin: 16px 0;
}
.ds-specimen-stage {
  padding: 32px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  background: var(--surface);
  background-image:
    linear-gradient(45deg, var(--surface-muted) 25%, transparent 25%),
    linear-gradient(-45deg, var(--surface-muted) 25%, transparent 25%);
  background-size: 14px 14px;
  background-position: 0 0, 0 7px;
}
.ds-specimen-stage.plain {
  background: var(--surface);
  background-image: none;
}
.ds-specimen-stage.dark {
  background: var(--ink);
  background-image: none;
}
.ds-specimen-stage.canvas {
  background: var(--canvas);
  background-image: none;
}
.ds-specimen-stage.left { justify-content: flex-start; }
.ds-specimen-stage.stack { flex-direction: column; align-items: stretch; }
.ds-specimen-stage.padded { padding: 56px 48px; }

.ds-specimen-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface-muted);
  font: var(--type-caption);
  color: var(--text-muted);
}
.ds-specimen-bar .label { color: var(--text-strong); font-weight: 500; }
.ds-specimen-bar .spacer { flex: 1; }
.ds-specimen-bar button {
  font: var(--type-caption);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
}
.ds-specimen-bar button:hover { background: var(--surface-sunken); color: var(--text-strong); }

/* Variant grid (multiple variants side by side) */
.ds-variant-grid {
  display: grid;
  gap: 16px;
  margin: 16px 0;
}
.ds-variant-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.ds-variant-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.ds-variant-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.ds-variant {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  overflow: clip;
  display: flex;
  flex-direction: column;
}
.ds-variant .v-stage {
  padding: 28px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 110px;
  flex: 1;
}
.ds-variant .v-label {
  padding: 10px 14px;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface);
}
.ds-variant .v-label .name {
  font: var(--type-label-sm);
  color: var(--text-strong);
}
.ds-variant .v-label .meta {
  font: var(--type-caption);
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--font-mono);
}

/* Code block */
.ds-code {
  background: var(--gray-900);
  color: #E4E7EE;
  border-radius: 10px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
  overflow-x: auto;
  margin: 12px 0;
}
.ds-code .k { color: #C99CFF; }
.ds-code .s { color: #FFB896; }
.ds-code .v { color: #7CCEFF; }
.ds-code .c { color: #6E7480; font-style: italic; }

/* Inline code */
code.inline {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--surface-muted);
  color: var(--text-strong);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Properties table (anatomy) */
.ds-props {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: clip;
  margin: 16px 0;
  font: var(--type-body-sm);
}
.ds-props th {
  text-align: left;
  padding: 12px 16px;
  font: 500 11px/1 var(--font-sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-subtle);
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
}
.ds-props td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}
.ds-props tr:last-child td { border-bottom: none; }
.ds-props td:first-child {
  font-family: var(--font-mono);
  color: var(--brand-strong);
  font-weight: 500;
  white-space: nowrap;
}
.ds-props td:nth-child(2) {
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}
.ds-props td:nth-child(3) {
  color: var(--text-body);
}

/* "Do / Don't" callout pair */
.ds-rules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.ds-rules .rule {
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: 10px;
  background: var(--surface);
  padding: 16px 18px;
}
.ds-rules .rule.do   { border-left-color: var(--tone-success); }
.ds-rules .rule.dont { border-left-color: var(--tone-danger); }
.ds-rules .rule .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 11px/1 var(--font-sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ds-rules .rule.do .tag   { color: var(--tone-success); }
.ds-rules .rule.dont .tag { color: var(--tone-danger); }
.ds-rules .rule .tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.ds-rules .rule p {
  font: var(--type-body-sm);
  color: var(--text-body);
  margin: 0;
  line-height: 1.55;
}

/* TOC (right column) */
.ds-toc {
  position: sticky;
  top: 80px;
  align-self: start;
  padding: 0 0 0 32px;
  border-left: 1px solid var(--border-subtle);
  font: var(--type-body-sm);
  color: var(--text-muted);
}
.ds-toc .toc-label {
  font: 500 11px/1 var(--font-sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 12px;
}
.ds-toc ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.ds-toc a {
  color: var(--text-muted);
  text-decoration: none;
  font: 500 13px/1.4 var(--font-sans);
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 12px;
  margin-left: -14px;
  display: block;
}
.ds-toc a:hover { color: var(--text-strong); }
.ds-toc a.current {
  color: var(--brand-strong);
  border-left-color: var(--brand);
}

/* Doc layout with TOC */
.ds-doc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 200px;
  gap: 48px;
  align-items: start;
}
.ds-doc-layout > * { min-width: 0; }
@media (max-width: 1280px) {
  .ds-doc-layout { grid-template-columns: minmax(0, 1fr); }
  .ds-doc-layout .ds-toc { display: none; }
}

/* Cards on the index "home" */
.ds-cards {
  display: grid;
  gap: 16px;
}
.ds-cards.cols-2 { grid-template-columns: 1fr 1fr; }
.ds-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }

.ds-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 10px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.ds-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.ds-card .ds-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  display: grid;
  place-items: center;
}
.ds-card h3 {
  font: 600 18px/1.3 var(--font-sans);
  letter-spacing: -0.01em;
  color: var(--text-strong);
  margin: 0;
}
.ds-card p {
  font: var(--type-body-sm);
  color: var(--text-muted);
  margin: 0;
  line-height: 1.55;
}
.ds-card .ds-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: var(--type-caption);
  color: var(--text-subtle);
  font-family: var(--font-mono);
}
.ds-card .ds-card-foot .arrow {
  color: var(--brand-strong);
  font-family: var(--font-sans);
  font-weight: 500;
}

/* Footer */
.ds-footer {
  grid-column: 1 / -1;
  padding: 24px 24px 32px;
  border-top: 1px solid var(--border);
  background: var(--canvas);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: var(--type-caption);
  color: var(--text-muted);
}
.ds-footer a { color: var(--text-muted); text-decoration: none; }
.ds-footer a:hover { color: var(--text-strong); }

/* Pagination footer between docs */
.ds-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.ds-pager a {
  display: block;
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.ds-pager a:hover { border-color: var(--border-strong); }
.ds-pager a.next { text-align: right; }
.ds-pager .pager-label {
  font: var(--type-caption);
  color: var(--text-subtle);
}
.ds-pager .pager-title {
  font: var(--type-label);
  color: var(--text-strong);
  margin-top: 4px;
}

/* "What's next" callout */
.ds-callout {
  border: 1px solid var(--brand-100);
  background: var(--brand-soft);
  border-radius: 12px;
  padding: 18px 22px;
  margin: 24px 0;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
}
.ds-callout .ic { color: var(--brand-strong); margin-top: 2px; }
.ds-callout h4 {
  font: 500 14px/1.4 var(--font-sans);
  color: var(--brand-strong);
  margin: 0 0 4px;
}
.ds-callout p {
  font: var(--type-body-sm);
  color: var(--brand-strong);
  margin: 0;
  opacity: 0.9;
  line-height: 1.55;
}

/* Body prose */
.ds-content p, .ds-content ul, .ds-content ol {
  font: 400 15px/1.65 var(--font-sans);
  color: var(--text-body);
}
.ds-content p { max-width: 64ch; margin: 0 0 14px; }
.ds-content ul, .ds-content ol { max-width: 64ch; padding-left: 22px; }
.ds-content ul li, .ds-content ol li { margin-bottom: 4px; }
.ds-content a:not([class]) { color: var(--text-link); }
.ds-content a:not([class]):hover { text-decoration: underline; text-underline-offset: 3px; }

/* === MOBILE MENU TOGGLE (hamburger) === */
.ds-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-strong);
  cursor: pointer;
  flex: none;
}
.ds-menu-toggle:hover { background: var(--surface-muted); }
.ds-menu-toggle:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.ds-sidebar-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(22, 24, 29, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 49;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.ds-sidebar-scrim.open { display: block; opacity: 1; }

/* ============================================================
   PREVIEW SWITCHER (Tailwind UI style)
   Wraps .ds-specimen and .ds-variant-grid with viewport controls.
   ============================================================ */
.ds-preview {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  margin: 16px 0;
  overflow: clip;
}
.ds-preview-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-wrap: wrap;
}
.ds-preview-toolbar .label {
  font: var(--type-caption);
  font-weight: 500;
  color: var(--text-strong);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.ds-preview-toolbar .spacer { flex: 1; }
.ds-preview-toolbar .ds-viewport-group {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--surface-muted);
  border-radius: 8px;
}
.ds-preview-toolbar .ds-viewport-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 26px;
  padding: 0 9px;
  border: 0;
  background: transparent;
  border-radius: 6px;
  color: var(--text-muted);
  font: 500 12px/1 var(--font-sans);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.ds-preview-toolbar .ds-viewport-btn:hover { color: var(--text-strong); }
.ds-preview-toolbar .ds-viewport-btn[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text-strong);
  box-shadow: 0 1px 2px rgba(22, 24, 29, 0.04), 0 0 0 1px var(--border);
}
.ds-preview-toolbar .ds-viewport-btn [data-icon] { color: currentColor; }
.ds-preview-toolbar .ds-viewport-meta {
  font: 500 11px/1 var(--font-mono);
  color: var(--text-subtle);
  min-width: 6ch;
  text-align: right;
}
.ds-preview-toolbar .ds-preview-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font: 500 12px/1 var(--font-sans);
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 6px;
}
.ds-preview-toolbar .ds-preview-link:hover {
  background: var(--surface-muted);
  color: var(--text-strong);
}
.ds-preview-frame {
  background: var(--canvas);
  background-image:
    linear-gradient(45deg, var(--surface-muted) 25%, transparent 25%),
    linear-gradient(-45deg, var(--surface-muted) 25%, transparent 25%);
  background-size: 14px 14px;
  background-position: 0 0, 0 7px;
  padding: 16px;
  display: flex;
  justify-content: safe center;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.ds-preview-frame::-webkit-scrollbar { height: 8px; }
.ds-preview-frame::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}
.ds-preview-frame::-webkit-scrollbar-track { background: transparent; }
.ds-preview-frame.flush { padding: 0; background: var(--surface); background-image: none; }
.ds-preview-stage {
  width: var(--ds-preview-w, 100%);
  flex: none;
  min-width: 0;
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
  transition: width var(--dur-base, 200ms) var(--ease-out);
  box-shadow: 0 1px 0 var(--border), 0 0 0 1px var(--border);
}
.ds-preview[data-viewport="full"] .ds-preview-stage { width: 100%; }
.ds-preview-stage > .ds-specimen > .ds-specimen-stage { min-width: 0; }
.ds-preview-stage > .ds-specimen { min-width: 0; }
.ds-preview-stage > .ds-specimen,
.ds-preview-stage > .ds-variant-grid {
  margin: 0;
  border-radius: 0;
  border: none;
}
.ds-preview-stage > .ds-variant-grid {
  padding: 16px;
  background: var(--surface);
}
.ds-preview[data-viewport="mobile"] .ds-preview-stage > .ds-variant-grid {
  grid-template-columns: 1fr;
}
.ds-preview[data-viewport="tablet"] .ds-preview-stage > .ds-variant-grid.cols-3,
.ds-preview[data-viewport="tablet"] .ds-preview-stage > .ds-variant-grid.cols-4 {
  grid-template-columns: 1fr 1fr;
}

/* === RESPONSIVE BREAKPOINTS === */

/* Tablet — collapse 4-col variant grids, TOC already hides at 1280px */
@media (max-width: 1100px) {
  .ds-variant-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .ds-topbar .ds-actions { display: none; }
  .ds-topbar .ds-search { max-width: 200px; }
  .ds-topbar .ds-search .kbd-hint { display: none; }
}
@media (max-width: 900px) {
  .ds-topbar .ds-search { display: none; }
}

/* Small tablet / large phone — collapse 3-col, simplify topbar */
@media (max-width: 900px) {
  .ds-variant-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .ds-cards.cols-3 { grid-template-columns: 1fr 1fr; }
  .ds-content { padding: 32px 24px 64px; max-width: 100%; }
  .ds-page-head h1 { font-size: 34px; }
  .ds-page-head .lede { font-size: 16px; }
  .ds-h2 { font-size: 21px; margin-top: 40px; }
  .ds-specimen-stage { padding: 24px 20px; }
  .ds-specimen-stage.padded { padding: 32px 24px; }
  .ds-rules { grid-template-columns: 1fr; }
}

/* Phone — collapse to mobile drawer, single columns */
@media (max-width: 720px) {
  .ds-layout { grid-template-columns: 1fr; }
  .ds-topbar { padding: 10px 16px; gap: 10px; }
  .ds-topbar .ds-nav { display: none; }
  .ds-topbar .ds-actions { display: none; }
  .ds-topbar .ds-search { display: none; }
  .ds-topbar .ds-brand .ds-badge { display: none; }
  .ds-menu-toggle { display: inline-flex; }

  .ds-sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    bottom: 0;
    width: min(86vw, 320px);
    height: calc(100dvh - 56px);
    padding: 20px 14px 32px;
    background: var(--canvas);
    border-right: 1px solid var(--border);
    transform: translateX(-100%);
    transition: transform var(--dur-base, 200ms) var(--ease-out);
    z-index: 50;
    box-shadow: 4px 0 24px rgba(22, 24, 29, 0.08);
  }
  .ds-sidebar.open { transform: translateX(0); }

  .ds-content { padding: 24px 18px 56px; }
  .ds-page-head { margin-bottom: 24px; }
  .ds-page-head h1 { font-size: 28px; line-height: 1.12; }
  .ds-page-head .lede { font-size: 15px; }
  .ds-page-head .meta { gap: 8px; }

  .ds-variant-grid.cols-2,
  .ds-variant-grid.cols-3,
  .ds-variant-grid.cols-4 { grid-template-columns: 1fr; }
  .ds-cards.cols-2, .ds-cards.cols-3 { grid-template-columns: 1fr; }

  .ds-specimen { margin: 12px 0; border-radius: 12px; }
  .ds-specimen-stage,
  .ds-specimen-stage.padded { padding: 20px 16px; min-height: 80px; }

  .ds-pager { grid-template-columns: 1fr; }
  .ds-pager a.next { text-align: left; }

  .ds-callout { padding: 14px 16px; grid-template-columns: 24px 1fr; gap: 10px; }

  .ds-h2 { font-size: 20px; margin-top: 32px; }
  .ds-h3 { font-size: 16px; margin-top: 24px; }

  .ds-code { padding: 12px 14px; font-size: 11.5px; }

  /* Tables become horizontally scrollable */
  .ds-props { display: block; overflow-x: auto; white-space: nowrap; }

  .ds-footer { padding: 18px 16px 24px; flex-direction: column; gap: 6px; text-align: center; }

  /* Preview switcher: collapse meta + link on phone, icon-only buttons */
  .ds-preview-toolbar { padding: 8px 10px; gap: 8px; }
  .ds-preview-toolbar .label { display: none; }
  .ds-preview-toolbar .ds-viewport-meta { display: none; }
  .ds-preview-toolbar .ds-preview-link span:not([data-icon]) { display: none; }
  .ds-preview-toolbar .ds-viewport-btn .lbl { display: none; }
  .ds-preview-toolbar .ds-viewport-btn { padding: 0 8px; }
  .ds-preview-frame { padding: 10px; }
}

/* Prevent runaway wide content in specimens from breaking the layout */
.ds-content { min-width: 0; }
.ds-specimen, .ds-variant-grid { min-width: 0; }