/*
 * Shared catalog UI parts.
 * Collects the displays reused regardless of feature — the top page's card list,
 * and each component page's heading / demo stage / keyboard table / code block, etc.
 * Styles specific to a single component go under components/.
 */

/* ── Catalog index ────────────────────────────────────── */
.catalog-head {
  padding-bottom: 1.5rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-default);
}

.catalog-head__eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-primary);
}

.catalog-head__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.875rem, 3.5vw, 2.125rem);
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.025em;
}

.catalog-head__lead {
  margin: 0 0 0.5rem;
  max-width: var(--reading-max);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

.catalog-head__lead:last-child {
  margin-bottom: 0;
}

.catalog-head__lead strong {
  color: var(--color-text);
}

.card-grid {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  /* min(16rem, 100%) keeps a track from overflowing the container at very narrow widths. */
  grid-template-columns: repeat(auto-fill, minmax(min(16rem, 100%), 1fr));
  gap: 1rem;
}

/* Per-category card list section. Mirrors the sidebar subheadings and can be
   expanded/collapsed per category via Stimeo UI's stimeo--accordion. */
.card-section {
  margin-top: 1.5rem;
}

.card-section__heading {
  margin: 0;
}

/* Category heading (= the accordion header). The actual operation is handled by a nested button. */
.card-section__trigger {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.5rem 0;
  color: var(--color-text-muted);
  text-align: left;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border-default);
  cursor: pointer;
}

.card-section__label {
  font-size: 0.8125rem;
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.card-section__count {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-subtle);
}

.card-section__trigger:hover {
  color: var(--color-text);
}

.card-section__trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Chevron showing open/closed. Points right when closed, rotates down when open. */
.card-section__icon {
  flex: none;
  margin-left: auto;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--duration-fast) var(--ease-out);
}

.card-section__trigger[aria-expanded="true"] .card-section__icon {
  transform: rotate(45deg);
}

.card-section__panel {
  margin: 0;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  box-shadow: var(--shadow-xs);
  transition:
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

/* Interactive catalog card: border shifts to vital and the card lifts on hover. */
.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }

  .card:hover {
    transform: none;
  }
}

.card__link {
  display: block;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
}

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card__summary {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── Component detail page (tabbed: Demo / Code / Keyboard / API) ──────── */
.component__back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
  font-size: 0.84375rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.component__back:hover {
  color: var(--color-text);
}

.component__header {
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 1.25rem;
  margin-bottom: 1.625rem;
}

.component__title-row {
  display: flex;
  align-items: baseline;
  gap: 0.875rem;
  flex-wrap: wrap;
  margin-bottom: 0.625rem;
}

.component__title {
  margin: 0;
  font-size: 2rem;
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.025em;
}

.component__id {
  font-family: var(--font-mono);
  font-size: 0.84375rem;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 0.1875rem 0.5625rem;
  border-radius: var(--radius-sm);
}

.component__summary {
  margin: 0 0 0.875rem;
  max-width: var(--reading-max);
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: var(--leading-normal);
}

.component-tabs__list {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.625rem;
  border-bottom: 1px solid var(--border-default);
  overflow-x: auto;
  scrollbar-width: none;
}

.component-tabs__list::-webkit-scrollbar {
  display: none;
}

.component-tabs__tab {
  position: relative;
  padding: 0.6875rem 0.875rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  background: transparent;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
}

.component-tabs__tab:hover {
  color: var(--color-text);
}

.component-tabs__tab[aria-selected="true"] {
  color: var(--color-primary);
}

.component-tabs__tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0.375rem;
  right: 0.375rem;
  bottom: -1px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px 2px 0 0;
}

.component-tabs__tab:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.component-tabs__panel[hidden] {
  display: none;
}

.component__description {
  margin: 0 0 1.25rem;
  max-width: var(--reading-max);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.component__empty {
  margin: 0;
  padding: 1.125rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-subtle);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Frame that shows the demo actually running (pinned light via data-theme). */
.demo-stage {
  position: relative;
  padding: 2.5rem 2rem 2rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-subtle);
}

.demo-stage__running {
  position: absolute;
  top: 0.875rem;
  left: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

/* Keyboard map shown inside the Demo tab (below the live demo), separated by a rule
   so you can try the shortcuts while watching the demo react. */
.demo-keys {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-default);
}

.component__subhead {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

/* ── Keyboard operations table ──────────────────────────────────────────────────── */
.keys {
  border-collapse: collapse;
  width: 100%;
}

.keys th,
.keys td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.keys th {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── State hooks table ────────────────────────────────────────────────── */
.component__note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0;
}

.hooks {
  border-collapse: collapse;
  width: 100%;
}

.hooks th,
.hooks td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.hooks th {
  font-size: 0.85rem;
  color: var(--muted);
}

.hooks code {
  white-space: nowrap;
}

/* ── Public API contract table (transcribed targets / values / actions / events) ──── */
.api-contract__identifier {
  margin-top: 0;
}

/* Small label before the data-controller line (so it doesn't look like a bare code fragment) */
.api-contract__identifier-label {
  margin-right: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.api-contract__subhead {
  font-size: 0.95rem;
  margin: 1.5rem 0 0.5rem;
}

.api-contract {
  border-collapse: collapse;
  width: 100%;
}

.api-contract th,
.api-contract td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.api-contract th {
  font-size: 0.85rem;
  color: var(--muted);
}

.api-contract code {
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  background: var(--sidebar-bg);
  white-space: nowrap;
}

/* Required-target marker (derived from requiredTargets) */
.api-contract__required {
  margin-left: 0.4rem;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

kbd {
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: var(--radius-xs);
  background: var(--surface-subtle);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* ── Foundation (shared styles) page ──────────────────────── */
.foundation-style {
  margin-bottom: 2rem;
}

.foundation-style__name {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.foundation-style__name code {
  font-family: var(--font-mono);
  color: var(--color-text);
}

/* ── Code block for showing markup ─────────────────────────── */
.code {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  /* Wrap long lines so no horizontal scrollbar appears. overflow-wrap also breaks
     unbroken strings (like a data URI or SVG path) mid-string so they don't overflow. */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ── Tag badges (cross-cutting attributes: Rails/Turbo integration, APG patterns)─────────── */
.card__tags,
.component__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin: 0;
  padding: 0 1.25rem 1.25rem;
  list-style: none;
}

.component__tags {
  padding: 0.75rem 0 0;
}

.card__tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--muted);
  white-space: nowrap;
}

/* Rails/Turbo integration tags lean toward the accent color; APG tags use a neutral color to distinguish them. */
.card__tag--integration {
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.4);
  background: rgba(var(--accent-rgb), 0.06);
}

/* ── Tag filter panel (top page only)───────────────────────── */
.catalog-filter {
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

.catalog-filter__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
}

.catalog-filter__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  border: 0;
  background: none;
  color: var(--fg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.catalog-filter__toggle-icon {
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentcolor;
  border-bottom: 2px solid currentcolor;
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}

.catalog-filter__toggle[aria-expanded="true"] .catalog-filter__toggle-icon {
  transform: rotate(-135deg);
}

.catalog-filter__clear {
  margin-left: auto;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.catalog-filter__clear:hover {
  color: var(--fg);
  border-color: var(--accent);
}

.catalog-filter__panel {
  padding: 0 0.75rem 0.75rem;
  border-top: 1px solid var(--border);
}

.catalog-filter__hint {
  margin: 0.75rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.catalog-filter__group + .catalog-filter__group {
  margin-top: 0.75rem;
}

.catalog-filter__group-label {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}

.catalog-filter__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.catalog-filter__chip {
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: none;
  color: var(--fg);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}

.catalog-filter__chip:hover {
  border-color: var(--accent);
}

.catalog-filter__chip[aria-pressed="true"] {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.catalog-filter__empty {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border: 1px dashed var(--border);
  border-radius: 0.5rem;
  color: var(--muted);
}