@import url('https://fonts.googleapis.com/css2?family=Inconsolata:wght@400;600&family=Inter:wght@400;500;600;700;900&display=swap');

:root,
[data-theme='dark'] {
  --site-gutter: 1rem;
  --site-max-width: 1200px;
  --site-max-width-wide: 1440px;
  --site-reading-width: 1040px;
  --page-bg: #000000;
  --page-bg-soft: #141414;
  --page-bg-elevated: rgba(0, 0, 0, 0.92);
  --panel-bg: rgba(20, 20, 20, 0.92);
  --text-main: #ffffff;
  --text-soft: #a0a0a0;
  --text-muted: #585858;
  --line-main: rgba(65, 65, 65, 0.8);
  --line-soft: rgba(65, 65, 65, 0.4);
  --accent-primary: #faff69;
  --accent-secondary: #166534;
  --accent-tertiary: #f4f692;
  --accent-border: #4f5100;
  --accent-on-primary: #151515;
  --shadow-panel: none;
  --font-display: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-code: 'Inconsolata', 'SFMono-Regular', monospace;
}

[data-theme='light'] {
  --page-bg: #ffffff;
  --page-bg-soft: #f8f8f8;
  --page-bg-elevated: rgba(255, 255, 255, 0.95);
  --panel-bg: rgba(255, 255, 255, 0.96);
  --text-main: #000000;
  --text-soft: #414141;
  --text-muted: #a0a0a0;
  --line-main: #e5e7eb;
  --line-soft: #f0f0f0;
  --accent-primary: #166534;
  --accent-secondary: #faff69;
  --accent-tertiary: #14572f;
  --accent-border: #e5e7eb;
  --accent-on-primary: #ffffff;
  --shadow-panel: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--accent-primary) 10%, transparent) 0%, transparent 42%),
    radial-gradient(circle at 50% 18%, color-mix(in srgb, var(--accent-secondary) 8%, transparent) 0%, transparent 32%);
  pointer-events: none;
  opacity: 0.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

code,
pre {
  font-family: var(--font-code);
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  border: 1px solid var(--accent-primary);
  border-radius: 4px;
  background: var(--accent-primary);
  color: #151515;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

.page-shell {
  position: relative;
}

.container {
  width: min(var(--site-max-width), calc(100vw - (var(--site-gutter) * 2)));
  margin: 0 auto;
}

.shell-panel {
  border: 1px solid var(--line-main);
  background: var(--panel-bg);
  box-shadow: var(--shadow-panel);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1rem 0 0;
}

.header-panel,
.footer-panel {
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 8px;
}

.header-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  align-items: center;
}

.footer-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-main);
  border-radius: 4px;
  background: var(--accent-primary);
}

.brand-copy {
  display: grid;
  gap: 0.1rem;
}

.brand-copy-compact {
  display: none;
}

.brand-copy strong,
.site-nav-link,
.theme-toggle,
.gallery-copy h1,
.detail-header-copy h1,
.preview-switcher h2,
.detail-documents h2,
.gallery-empty h2,
.design-card h2,
.detail-adjacent-link strong,
.section-heading h2,
.feature-card h3,
.step-card h3,
.markdown-shell :where(h1, h2, h3, h4),
.footer-title {
  font-family: var(--font-display);
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-copy small {
  color: var(--text-soft);
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
}

.site-nav-primary,
.site-nav-repo,
.header-actions {
  justify-self: end;
}

.site-nav-primary,
.site-nav-repo {
  justify-content: flex-end;
}

.header-actions,
.language-links {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.header-actions {
  justify-content: flex-end;
  flex-wrap: wrap;
}

.language-link,
.site-nav-link,
.theme-toggle,
.header-utility-trigger,
.gallery-link-chip,
.detail-back-link,
.gallery-clear-button,
.preview-toggle,
.detail-tab,
.detail-copy-button,
.detail-adjacent-link,
.gallery-showcase-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  border: 1px solid var(--line-main);
  border-radius: 4px;
  padding: 0.72rem 1rem;
  background: transparent;
  color: var(--text-main);
  font: inherit;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    opacity 180ms ease;
}

.site-nav-link,
.theme-toggle,
.language-link,
.header-utility-trigger,
.gallery-link-chip,
.detail-back-link,
.gallery-clear-button,
.preview-toggle,
.detail-tab,
.detail-copy-button,
.gallery-showcase-nav {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.site-nav-link:hover,
.theme-toggle:hover,
.language-link:hover,
.header-utility-trigger:hover,
.gallery-link-chip:hover,
.detail-back-link:hover,
.gallery-clear-button:hover,
.preview-toggle:hover,
.detail-tab:hover,
.detail-copy-button:hover,
.detail-adjacent-link:hover,
.gallery-showcase-nav:hover {
  transform: translateY(-1px);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.site-nav-link.active,
.preview-toggle.is-active,
.detail-tab.is-active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--accent-on-primary);
}

.language-link.active {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.theme-toggle {
  white-space: nowrap;
}

.header-utility {
  position: relative;
  display: none;
}

.header-utility[open] {
  z-index: 3;
}

.header-utility-trigger {
  list-style: none;
  touch-action: manipulation;
}

.header-utility-trigger::-webkit-details-marker {
  display: none;
}

.header-utility-trigger-label {
  font-size: 1rem;
  line-height: 1;
}

.header-utility[open] .header-utility-trigger {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 10%, var(--panel-bg));
}

.header-utility-surface {
  position: absolute;
  top: calc(100% + 0.55rem);
  right: 0;
  display: grid;
  gap: 0.5rem;
  min-width: min(16rem, calc(100vw - (var(--site-gutter) * 2)));
  padding: 0.75rem;
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel-bg) 97%, transparent);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

.header-utility-link {
  width: 100%;
  justify-content: flex-start;
}

.site-nav-link-label-compact,
.language-link-label-compact,
.theme-toggle-label-compact {
  display: none;
}

main {
  padding: 2rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 1rem;
  width: min(var(--site-max-width), calc(100vw - (var(--site-gutter) * 2)));
  margin: 0 auto;
}

.hero-copy,
.hero-aside,
.feature-card,
.step-card,
.markdown-shell,
.gallery-hero-panel,
.gallery-showcase,
.gallery-toolbar,
.gallery-empty,
.detail-header,
.preview-switcher,
.detail-documents,
.design-card,
.detail-adjacent-link {
  border-radius: 8px;
}

.hero-copy,
.hero-aside,
.feature-card,
.step-card {
  padding: 1.5rem;
}

.hero-eyebrow,
.section-kicker,
.gallery-eyebrow,
.detail-kicker,
.gallery-empty-kicker,
.gallery-toolbar-label,
.gallery-meta-label {
  margin: 0;
  color: var(--accent-primary);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
}

.hero-copy h1 {
  margin: 0.75rem 0 1rem;
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
}

.hero-lead,
.section-heading p,
.feature-card p,
.step-card p,
.footer-copy,
.markdown-shell p,
.markdown-shell li,
.gallery-lead,
.detail-summary,
.gallery-showcase-copy,
.gallery-showcase-body p,
.gallery-empty p,
.gallery-toolbar-note,
.gallery-no-results-copy,
.document-copy :where(p, li, td, blockquote) {
  color: var(--text-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 1.5rem 0 1rem;
}

.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 600;
}

.button-primary {
  background: var(--accent-primary);
  color: var(--accent-on-primary);
  border-color: var(--accent-primary);
}

.button-secondary {
  background: transparent;
  color: var(--text-main);
  border-color: var(--accent-border);
}

.hero-note {
  color: var(--text-soft);
  max-width: 42ch;
}

.status-row,
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.status-row {
  margin-bottom: 1rem;
  color: var(--text-soft);
}

.status-dot {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--accent-primary);
}

.code-card,
.metric-card {
  border: 1px solid var(--line-main);
  background: var(--page-bg-soft);
}

.code-card {
  border-radius: 8px;
  padding: 1rem;
}

.code-head {
  margin-bottom: 0.85rem;
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
}

.code-card pre {
  margin: 0;
  white-space: pre-wrap;
  color: var(--text-main);
}

.metric-list,
.feature-grid,
.step-strip {
  display: grid;
  gap: 1rem;
}

.metric-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.metric-card {
  border-radius: 8px;
  padding: 1rem;
}

.metric-card strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1.8rem;
  font-weight: 900;
}

.section-block,
.markdown-shell {
  width: min(var(--site-reading-width), calc(100vw - (var(--site-gutter) * 2)));
  margin: 1rem auto 0;
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0.35rem 0 0.65rem;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
}

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

.step-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin-bottom: 1rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--accent-border);
  border-radius: 4px;
  color: var(--accent-primary);
  font-weight: 700;
}

[data-design-card][hidden] {
  display: none !important;
}

.gallery-hero {
  margin-bottom: 1rem;
}

.gallery-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 1rem;
  padding: clamp(1.25rem, 2vw, 2rem);
  align-items: start;
}

.gallery-copy {
  display: grid;
  gap: 0.75rem;
  justify-items: start;
  text-align: left;
}

.gallery-copy h1,
.detail-header-copy h1,
.preview-switcher h2,
.detail-documents h2,
.gallery-empty h2 {
  margin: 0.4rem 0 0.85rem;
  font-size: clamp(2.25rem, 5vw, 4.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
}

.gallery-copy h1 {
  max-width: 8ch;
}

.gallery-lead {
  max-width: 42rem;
  margin: 0;
  font-size: 1rem;
  line-height: 1.56;
}

.gallery-readme-notes {
  display: grid;
  gap: 0.8rem;
  max-width: 58rem;
  margin-top: 1.15rem;
}

.gallery-readme-kicker {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gallery-readme-list {
  display: grid;
  gap: 0.75rem;
}

.gallery-readme-item {
  padding: 0.95rem 1rem;
  border: 1px solid var(--line-main);
  border-radius: 8px;
  background: var(--page-bg-soft);
}

.gallery-readme-excerpt,
.gallery-readme-translation {
  margin: 0;
  line-height: 1.6;
}

.gallery-readme-excerpt {
  color: var(--text-main);
  font-size: 0.98rem;
  font-weight: 600;
}

.gallery-readme-translation {
  margin-top: 0.45rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.gallery-showcase,
.gallery-toolbar,
.gallery-empty,
.detail-header,
.preview-switcher,
.detail-documents {
  padding: 1.25rem;
}

.gallery-showcase {
  display: grid;
  gap: 0.85rem;
  width: 100%;
  margin: 0 auto;
  text-align: left;
}

.gallery-showcase-link:hover {
  color: inherit;
}

.gallery-showcase-link:focus-visible,
.design-card:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

.gallery-showcase-head,
.design-card-topline,
.design-card-tags,
.detail-chip-row,
.preview-switcher-head,
.detail-documents-head,
.detail-adjacent-nav,
.gallery-toolbar-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.gallery-showcase-head {
  align-items: flex-start;
}

.gallery-showcase-head h2,
.gallery-showcase-body h3 {
  margin: 0.35rem 0 0;
  line-height: 1.05;
}

.gallery-showcase-head h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 700;
}

.gallery-showcase-stage {
  display: grid;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-main);
  border-radius: 8px;
  background: var(--page-bg-soft);
}

.gallery-showcase-slide {
  grid-area: 1 / 1;
  display: grid;
  gap: 0.75rem;
  padding: 0.8rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 280ms ease, transform 280ms ease;
  pointer-events: none;
}

.gallery-showcase-slide.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.gallery-showcase-media {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line-main);
  border-radius: 4px;
  background: var(--page-bg);
}

.gallery-showcase-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.gallery-showcase-body {
  display: grid;
  gap: 0.4rem;
}

.gallery-showcase-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.gallery-showcase-copy,
.gallery-toolbar-note,
.gallery-no-results-copy {
  margin: 0;
  font-size: 0.95rem;
}

.gallery-toolbar {
  margin-bottom: 1.25rem;
}

.gallery-toolbar-summary {
  margin: 0.35rem 0 0;
  color: var(--text-main);
  font-size: 1.125rem;
  font-weight: 600;
}

.gallery-toolbar-note {
  max-width: 32ch;
  text-align: right;
}

.gallery-search-field {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
}

.gallery-search-label,
.gallery-meta-label,
.design-card-topline span,
.preview-switcher-note,
.detail-adjacent-link span {
  color: var(--text-soft);
  font-size: 0.86rem;
}

.gallery-search-input {
  width: 100%;
  border: 1px solid var(--line-main);
  border-radius: 4px;
  padding: 0.95rem 1rem;
  background: var(--page-bg-soft);
  color: var(--text-main);
  font: inherit;
}

.gallery-search-input::placeholder {
  color: var(--text-muted);
}

.gallery-search-input:focus-visible,
.preview-toggle:focus-visible,
.detail-tab:focus-visible,
.gallery-clear-button:focus-visible,
.detail-back-link:focus-visible,
.gallery-showcase-nav:focus-visible,
.gallery-showcase-dot:focus-visible,
.detail-copy-button:focus-visible,
.theme-toggle:focus-visible,
.language-link:focus-visible,
.site-nav-link:focus-visible,
.header-utility-trigger:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.gallery-no-results {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px dashed var(--accent-border);
  border-radius: 4px;
  background: var(--page-bg-soft);
}

.gallery-no-results-title {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
  font-weight: 700;
}

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

.design-card {
  display: block;
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease;
}

.design-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-primary);
}

.design-card-preview {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5.8;
  border-bottom: 1px solid var(--line-main);
  background: var(--page-bg-soft);
}

.design-card-frame,
.detail-preview-frame {
  width: 100%;
  border: 0;
  background: #ffffff;
}

.design-card-frame {
  position: absolute;
  top: 0;
  left: 50%;
  width: calc(100% / 0.88);
  height: calc(100% / 0.88);
  transform: translateX(-50%) scale(0.88);
  transform-origin: top center;
  pointer-events: none;
}

.design-card-body {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1rem 1.1rem;
}

.design-card h2 {
  margin: 0;
  font-size: clamp(1.6rem, 2vw, 2rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.design-card-tags span,
.detail-chip-row span {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.72rem;
  border: 1px solid var(--line-main);
  border-radius: 4px;
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.detail-shell {
  display: grid;
  gap: 1rem;
}

.detail-grid {
  display: grid;
  gap: 1rem;
}

.detail-header-copy {
  display: grid;
  gap: 0.85rem;
}

.detail-header-copy h1,
.gallery-empty h2,
.preview-switcher h2,
.detail-documents h2 {
  font-size: clamp(2rem, 4.5vw, 4rem);
}

.preview-switcher-head,
.detail-documents-head {
  margin-bottom: 1rem;
}

.preview-switcher-controls,
.detail-tab-list,
.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.detail-doc-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.detail-copy-button {
  opacity: 0;
  pointer-events: none;
}

.detail-copy-button.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.detail-copy-button:disabled {
  cursor: default;
}

.detail-preview-frame {
  min-height: 42rem;
  border: 1px solid var(--line-main);
  border-radius: 4px;
}

.preview-switcher-note {
  margin: 0.85rem 0 0;
}

.detail-doc-panels {
  display: grid;
}

.document-copy {
  padding: 1.25rem;
}

.markdown-shell {
  border: 1px solid var(--line-main);
  background: var(--panel-bg);
}

.document-copy :where(h1, h2, h3, h4),
.markdown-shell :where(h1, h2, h3, h4) {
  color: var(--text-main);
  line-height: 1.1;
}

.document-copy :where(table),
.markdown-shell :where(table) {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

.document-copy :where(th, td),
.markdown-shell :where(th, td) {
  padding: 0.75rem;
  border: 1px solid var(--line-main);
  vertical-align: top;
}

.document-copy :where(code),
.markdown-shell :where(code) {
  padding: 0.18rem 0.35rem;
  border-radius: 4px;
  background: var(--page-bg-soft);
}

.document-copy :where(pre),
.markdown-shell :where(pre) {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 4px;
  background: var(--page-bg-soft);
}

.detail-adjacent-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-adjacent-link {
  display: grid;
  gap: 0.3rem;
  padding: 1rem;
}

.detail-adjacent-link strong {
  font-size: 1.1rem;
  font-weight: 700;
}

.detail-adjacent-link-next {
  text-align: right;
}

.detail-adjacent-link.is-empty {
  visibility: hidden;
}

.site-footer {
  padding: 0 0 2rem;
}

.footer-panel {
  align-items: flex-start;
}

.footer-title {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-copy {
  max-width: 44ch;
  margin: 0 0 1rem;
}

.footer-links a {
  color: var(--text-soft);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.footer-links a:hover {
  color: var(--accent-primary);
}

@media (min-width: 1440px) {
  :root,
  [data-theme='dark'],
  [data-theme='light'] {
    --site-max-width: var(--site-max-width-wide);
    --site-reading-width: 1120px;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .detail-preview-frame {
    min-height: 48rem;
  }
}

@media (max-width: 1080px) {
  .gallery-hero-panel,
  .gallery-grid,
  .metric-list,
  .feature-grid,
  .step-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .header-panel {
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
  }

  .site-nav-repo {
    grid-column: 1 / -1;
    justify-self: stretch;
    justify-content: flex-start;
  }

  .language-link,
  .theme-toggle,
  .site-nav-link,
  .header-utility-trigger {
    padding-inline: 0.85rem;
  }

  .language-link-label-full,
  .theme-toggle-label-full {
    display: none;
  }

  .language-link-label-compact,
  .theme-toggle-label-compact {
    display: inline;
  }

  .footer-panel,
  .hero-grid {
    flex-direction: column;
    align-items: stretch;
  }

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

  .gallery-hero-panel {
    grid-template-columns: 1fr;
  }

  .gallery-toolbar-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .gallery-toolbar-note {
    text-align: left;
  }
}

@media (max-width: 720px) {
  .gallery-grid,
  .detail-adjacent-nav,
  .metric-list,
  .feature-grid,
  .step-strip {
    grid-template-columns: minmax(0, 1fr);
  }

  .preview-switcher-controls,
  .detail-tab-list,
  .detail-doc-controls,
  .footer-links,
  .hero-actions {
    width: 100%;
  }

  .header-panel {
    grid-template-columns: minmax(0, 1fr) auto auto auto;
    gap: 0.55rem;
    padding: 0.8rem 0.9rem;
  }

  .brand-mark,
  .header-actions,
  .language-links,
  .site-nav-primary {
    min-width: 0;
  }

  .brand-mark {
    gap: 0.5rem;
  }

  .brand-logo {
    width: 28px;
    height: 28px;
  }

  .brand-copy-full,
  .brand-copy small,
  .site-nav-repo,
  .theme-toggle-label-full {
    display: none;
  }

  .brand-copy-compact,
  .theme-toggle-label-compact {
    display: inline;
  }

  .brand-copy strong {
    font-size: 0.92rem;
  }

  .header-actions {
    gap: 0.45rem;
    flex-wrap: nowrap;
  }

  .language-links {
    gap: 0.35rem;
  }

  .language-link,
  .theme-toggle,
  .site-nav-link,
  .header-utility-trigger {
    min-width: 44px;
    min-height: 44px;
    padding: 0.6rem 0.72rem;
    letter-spacing: 0.08em;
  }

  .theme-toggle,
  .header-utility-trigger {
    padding-inline: 0.68rem;
  }

  .site-nav-link-label-full,
  .language-link-label-full {
    display: none;
  }

  .site-nav-link-label-compact,
  .language-link-label-compact {
    display: inline;
  }

  .header-utility {
    display: block;
    justify-self: end;
  }

  .header-utility-surface {
    width: min(15rem, calc(100vw - (var(--site-gutter) * 2)));
  }

  .gallery-copy h1,
  .hero-copy h1 {
    max-width: none;
    font-size: clamp(2.5rem, 12vw, 4.5rem);
  }

  .gallery-copy,
  .gallery-readme-notes {
    justify-items: stretch;
  }

  .gallery-no-results,
  .detail-documents-head,
  .preview-switcher-head,
  .design-card-topline,
  .detail-chip-row,
  .gallery-showcase-head,
  .gallery-toolbar-head,
  .footer-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .button-primary,
  .button-secondary,
  .preview-toggle,
  .detail-tab,
  .gallery-link-chip,
  .gallery-clear-button,
  .detail-back-link {
    width: 100%;
  }

  .detail-preview-frame {
    min-height: 26rem;
  }
}