/**
 * VelinStyle Homepage — UX polish layer (1.2.0)
 * Language switch, capabilities grid, galleries, token inspector,
 * criteria, install terminal, footer widgets. Reduced-motion safe.
 */

/* ─── 1. Language switcher ─── */
.expo-lang {
  display: inline-flex;
  align-items: stretch;
  margin-inline-start: 0.35rem;
  padding: 0.15rem;
  border: 1px solid color-mix(in oklab, var(--velin-color-primary) 35%, var(--velin-color-border));
  border-radius: var(--velin-radius-md);
  background: color-mix(in oklab, var(--velin-color-surface-dim) 80%, var(--velin-color-primary));
  gap: 0.1rem;
}

.expo-lang__opt {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.35rem 0.7rem;
  border: 0;
  border-radius: calc(var(--velin-radius-md) - 2px);
  background: transparent;
  color: var(--velin-color-text-muted);
  font: inherit;
  font-size: var(--velin-text-sm);
  font-weight: var(--velin-weight-bold);
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 160ms var(--expo-ease),
    color 160ms var(--expo-ease),
    box-shadow 160ms var(--expo-ease);
}

.expo-lang__opt:hover {
  color: var(--velin-color-text);
  background: color-mix(in oklab, var(--velin-color-surface) 70%, transparent);
}

.expo-lang__opt:focus-visible {
  outline: 3px solid var(--velin-color-focus, #2563eb);
  outline-offset: 1px;
  z-index: 1;
}

.expo-lang__opt[aria-current="true"] {
  color: var(--velin-color-on-primary, #fff);
  background: var(--velin-color-primary);
  box-shadow: 0 1px 0 color-mix(in oklab, #fff 18%, transparent);
  pointer-events: none;
}

.expo-nav__actions .expo-lang {
  display: inline-flex;
}

@media (max-width: 63.99rem) {
  .expo-nav__menu .expo-lang { display: none; }
}

.expo-site-nav .expo-lang {
  margin: 0.5rem 0;
  width: fit-content;
}

/* ─── 2. Capabilities — categorized grid ─── */
.expo-capabilities {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  overflow: visible;
  padding: 0;
  mask-image: none;
  scroll-snap-type: none;
}

.expo-cap-group {
  display: grid;
  gap: 0.65rem;
}

.expo-cap-group__title {
  margin: 0;
  font-size: 0.72rem;
  font-weight: var(--velin-weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--velin-color-text-muted);
}

.expo-cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
  gap: 0.5rem;
}

.expo-cap {
  flex: none;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--velin-radius-md);
  white-space: normal;
  line-height: 1.25;
  scroll-snap-align: unset;
}

.expo-cap::before { display: none; }

.expo-cap__icon {
  display: grid;
  place-items: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: var(--velin-radius-sm);
  background: color-mix(in oklab, var(--velin-color-primary) 16%, transparent);
  color: var(--velin-color-primary);
  font-size: 0.7rem;
  font-weight: var(--velin-weight-bold);
  letter-spacing: 0;
  flex-shrink: 0;
}

.expo-cap__label {
  font-size: var(--velin-text-sm);
  font-weight: var(--velin-weight-semibold);
  color: inherit;
}

/* ─── 3. More galleries ─── */
.expo-more {
  display: grid;
  gap: var(--velin-space-4);
}

.expo-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: var(--velin-space-3);
}

.expo-gallery-card {
  display: grid;
  gap: 0.65rem;
  padding: var(--velin-space-4);
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  background: var(--velin-color-surface);
  text-decoration: none;
  color: inherit;
  transition:
    transform 180ms var(--expo-ease),
    border-color 180ms var(--expo-ease),
    box-shadow 180ms var(--expo-ease);
}

.expo-gallery-card:hover,
.expo-gallery-card:focus-visible {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--velin-color-primary) 42%, var(--velin-color-border));
  box-shadow: 0 14px 32px color-mix(in oklab, var(--velin-color-text) 12%, transparent);
  outline: none;
}

.expo-gallery-card__preview {
  display: flex;
  align-items: flex-end;
  gap: 0.35rem;
  min-height: 3.25rem;
  padding: 0.65rem;
  border-radius: var(--velin-radius-md);
  border: 1px dashed var(--velin-color-border);
  background:
    linear-gradient(
      135deg,
      color-mix(in oklab, var(--velin-color-primary) 10%, transparent),
      transparent 60%
    ),
    var(--velin-color-bg);
}

.expo-gallery-card__preview span {
  display: block;
  height: 0.85rem;
  border-radius: 999px;
  background: color-mix(in oklab, var(--velin-color-primary) 45%, var(--velin-color-border));
}

.expo-gallery-card__preview span:nth-child(1) { width: 2.2rem; height: 1.35rem; border-radius: var(--velin-radius-sm); }
.expo-gallery-card__preview span:nth-child(2) { width: 1.6rem; opacity: 0.7; }
.expo-gallery-card__preview span:nth-child(3) { width: 2.8rem; opacity: 0.45; }

.expo-gallery-card h3 {
  margin: 0;
  font-size: var(--velin-text-base);
}

.expo-gallery-card p {
  margin: 0;
  font-size: var(--velin-text-sm);
  color: var(--velin-color-text-muted);
  line-height: 1.4;
}

.expo-gallery-card__meta {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--velin-color-primary);
  font-weight: var(--velin-weight-semibold);
}

/* ─── 4. Token Lab inspector ─── */
.expo-token-lab {
  display: grid;
  gap: var(--velin-space-4);
}

@media (min-width: 64rem) {
  .expo-token-lab {
    grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.75fr);
    align-items: start;
  }
}

.expo-token-lab__stage {
  display: grid;
  gap: var(--velin-space-3);
  min-width: 0;
}

.expo-token-inspector {
  display: grid;
  gap: var(--velin-space-3);
  padding: var(--velin-space-4);
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  background: var(--velin-color-surface);
  align-content: start;
  position: sticky;
  top: calc(var(--expo-nav-h) + 0.75rem);
}

.expo-token-inspector__title {
  margin: 0;
  font-size: var(--velin-text-sm);
  font-weight: var(--velin-weight-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--velin-color-text);
}

.expo-token-inspector__group {
  display: grid;
  gap: 0.45rem;
  padding-block-start: 0.65rem;
  border-block-start: 1px solid color-mix(in oklab, var(--velin-color-border) 80%, transparent);
}

.expo-token-inspector__group:first-of-type {
  border-block-start: 0;
  padding-block-start: 0;
}

.expo-token-inspector__group h4 {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--velin-color-primary);
}

.expo-token-inspector__group label {
  display: grid;
  gap: 0.25rem;
  font-size: var(--velin-text-sm);
  color: var(--velin-color-text-muted);
}

.expo-token-inspector__group input[type="range"],
.expo-token-inspector__group select,
.expo-token-inspector__group .velin-input {
  width: 100%;
  min-height: 2.5rem;
}

.expo-token-inspector #tokenMotion {
  justify-self: start;
  min-height: 2.5rem;
}

.expo-token-readout {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  font-family: var(--velin-font-mono, ui-monospace, monospace);
  font-size: 0.72rem;
  color: var(--velin-color-text-muted);
}

.expo-token-readout code {
  padding: 0.15rem 0.4rem;
  border-radius: var(--velin-radius-sm);
  background: var(--velin-color-surface-dim);
}

.expo-token-compare {
  margin: 0;
}

/* Hide legacy flat controls if present */
.expo-token-lab > .expo-controls { display: none; }

/* ─── 5. Test Center feedback ─── */
.expo-test-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr));
  gap: var(--velin-space-3);
}

.expo-test-card {
  display: grid;
  gap: 0.55rem;
  padding: var(--velin-space-3);
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  background: var(--velin-color-surface);
  align-content: start;
  transition: border-color 180ms var(--expo-ease), background-color 180ms var(--expo-ease);
}

.expo-test-card h3 {
  margin: 0;
  font-size: var(--velin-text-sm);
}

.expo-test-card .velin-btn {
  min-height: 2.5rem;
  justify-self: start;
}

.expo-test-card[data-pass="true"] {
  border-color: color-mix(in oklab, var(--velin-color-success) 55%, var(--velin-color-border));
  background: color-mix(in oklab, var(--velin-color-success) 8%, var(--velin-color-surface));
}

.expo-test-card[data-pass="false"] {
  border-color: color-mix(in oklab, var(--velin-color-danger) 45%, var(--velin-color-border));
  background: color-mix(in oklab, var(--velin-color-danger) 7%, var(--velin-color-surface));
}

.expo-test-card[data-pass="true"] [data-test-out]::before,
.expo-test-card[data-pass="false"] [data-test-out]::before {
  display: inline-block;
  margin-inline-end: 0.35em;
  font-weight: var(--velin-weight-bold);
}

.expo-test-card[data-pass="true"] [data-test-out]::before { content: "✓"; color: var(--velin-color-success); }
.expo-test-card[data-pass="false"] [data-test-out]::before { content: "!"; color: var(--velin-color-danger); }

.expo-test-center__stage[data-flash="1"] {
  outline: 2px solid var(--velin-color-primary);
  outline-offset: 2px;
}

.expo-test-center__stage[dir="rtl"] .velin-nav {
  flex-direction: row-reverse;
}

.expo-pulse {
  animation: expo-test-pulse 1.1s ease-in-out infinite;
}

@keyframes expo-test-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(1.08); }
}

/* ─── 6. Fair criteria ─── */
.expo-criteria-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  overflow: hidden;
  background: var(--velin-color-surface);
}

.expo-criteria-table th,
.expo-criteria-table td {
  padding: 1rem 1.1rem;
  vertical-align: top;
  border-block-end: 1px solid var(--velin-color-border);
  font-size: var(--velin-text-sm);
  line-height: 1.45;
}

.expo-criteria-table thead th {
  background: var(--velin-color-surface-dim);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--velin-color-text-muted);
}

.expo-criteria-table tbody th[scope="row"] {
  font-weight: var(--velin-weight-bold);
  color: var(--velin-color-text);
  white-space: nowrap;
}

.expo-criteria-table tbody th[scope="row"]::before {
  content: "";
  display: inline-block;
  width: 0.45em;
  height: 0.45em;
  margin-inline-end: 0.55em;
  border-radius: 50%;
  background: var(--velin-color-primary);
  vertical-align: 0.1em;
}

.expo-criteria-table td:nth-child(3) {
  background: color-mix(in oklab, var(--velin-color-primary) 7%, transparent);
  font-weight: var(--velin-weight-semibold);
}

.expo-criteria-table td:nth-child(4) {
  color: var(--velin-color-text-muted);
}

.expo-criteria-table tbody tr:last-child th,
.expo-criteria-table tbody tr:last-child td {
  border-block-end: 0;
}

.expo-criteria-table tbody tr:hover td,
.expo-criteria-table tbody tr:hover th {
  background-color: color-mix(in oklab, var(--velin-color-primary) 5%, transparent);
}

@media (max-width: 47.99rem) {
  .expo-criteria-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .expo-criteria-table thead,
  .expo-criteria-table tbody,
  .expo-criteria-table tr {
    display: table;
    width: 100%;
    min-width: 36rem;
    table-layout: fixed;
  }
}

/* ─── 7. Install terminal ─── */
.expo-terminal {
  position: relative;
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  background: color-mix(in oklab, var(--velin-color-surface-dim) 90%, #000);
  overflow: hidden;
  box-shadow: 0 18px 40px color-mix(in oklab, var(--velin-color-text) 12%, transparent);
}

.expo-terminal__chrome {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.85rem;
  border-block-end: 1px solid var(--velin-color-border);
  background: color-mix(in oklab, var(--velin-color-surface) 70%, transparent);
}

.expo-terminal__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--velin-color-border);
}

.expo-terminal__dot:nth-child(1) { background: #ff5f57; }
.expo-terminal__dot:nth-child(2) { background: #febc2e; }
.expo-terminal__dot:nth-child(3) { background: #28c840; }

.expo-terminal__title {
  margin-inline-start: 0.5rem;
  font-size: var(--velin-text-sm);
  color: var(--velin-color-text-muted);
  font-family: var(--velin-font-mono, ui-monospace, monospace);
}

.expo-terminal__copy {
  margin-inline-start: auto;
  min-height: 2.5rem;
}

.expo-terminal__body {
  margin: 0;
  padding: 1rem 1.1rem 1.25rem;
  min-height: 11rem;
  font-family: var(--velin-font-mono, ui-monospace, monospace);
  font-size: var(--velin-text-sm);
  line-height: 1.55;
  color: var(--velin-color-text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.expo-terminal__line { display: block; }
.expo-terminal__line--muted { color: var(--velin-color-text-muted); }
.expo-terminal__line--ok { color: var(--velin-color-success, #22c55e); }
.expo-terminal__line--cmd { color: var(--velin-color-primary); }

.expo-terminal__cursor {
  display: inline-block;
  width: 0.55ch;
  height: 1.05em;
  margin-inline-start: 0.1em;
  vertical-align: text-bottom;
  background: var(--velin-color-primary);
}

@media (prefers-reduced-motion: no-preference) {
  .expo-terminal__cursor {
    animation: expo-cursor 1s steps(1) infinite;
  }
}

@keyframes expo-cursor {
  50% { opacity: 0; }
}

.expo-install-extra {
  margin-block-start: var(--velin-space-4);
  display: grid;
  gap: var(--velin-space-3);
}

/* ─── 8. Footer expansion ─── */
.expo-footer__inner {
  grid-template-columns: 1fr;
}

@media (min-width: 56rem) {
  .expo-footer__inner {
    grid-template-columns: minmax(12rem, 0.9fr) minmax(0, 1.6fr) minmax(12rem, 0.85fr);
  }
}

.expo-footer__widgets {
  display: grid;
  gap: 0.65rem;
  padding: var(--velin-space-3);
  border: 1px solid var(--velin-color-border);
  border-radius: var(--velin-radius-lg);
  background: color-mix(in oklab, var(--velin-color-surface-dim) 70%, transparent);
}

.expo-footer__widget {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 2.5rem;
  font-size: var(--velin-text-sm);
}

.expo-footer__widget strong {
  font-variant-numeric: tabular-nums;
  color: var(--velin-color-text);
}

.expo-footer__widget-label {
  color: var(--velin-color-text-muted);
}

.expo-footer__swatches {
  display: flex;
  gap: 0.35rem;
}

.expo-footer__swatch {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  border: 1px solid color-mix(in oklab, var(--velin-color-border) 70%, transparent);
}

.expo-footer__cols {
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
}

.expo-footer__col a {
  min-height: 2rem;
  display: inline-flex;
  align-items: center;
  transition: color 160ms var(--expo-ease), transform 160ms var(--expo-ease);
}

.expo-footer__col a:hover {
  transform: translateX(2px);
}

/* ─── 9. Mobile / touch ─── */
@media (max-width: 47.99rem) {
  .expo-hero__actions .velin-btn,
  .expo-links .velin-btn,
  .expo-test-card .velin-btn,
  .expo-cap {
    min-height: 2.75rem;
  }

  .expo-diff {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

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

@media (max-width: 22.5rem) {
  .expo-gallery-grid,
  .expo-cap-grid {
    grid-template-columns: 1fr;
  }

  .expo-facts-grid {
    grid-template-columns: 1fr;
  }

  .expo-hero__copy h1 {
    font-size: clamp(1.65rem, 8vw, 2.1rem);
  }

  .expo-nav__actions .expo-nav__search { display: none; }

  .expo-nav__actions .velin-btn--primary {
    padding-inline: 0.65rem;
  }
}

/* Keep page from gaining a horizontal scrollbar from dense nav chrome */
.expo-nav__actions {
  max-width: 100%;
  flex-shrink: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  .expo-gallery-card,
  .expo-cap,
  .expo-lang__opt,
  .expo-footer__col a,
  .expo-test-card {
    transition: none;
  }

  .expo-gallery-card:hover,
  .expo-footer__col a:hover {
    transform: none;
  }

  .expo-pulse,
  .expo-terminal__cursor {
    animation: none !important;
  }
}