/* Preview page chrome only: the page layout, section accordions and the
 * specimen grids that frame each component. Every component rule lives in
 * components.css (a synced copy of design-system/components/components.css),
 * which loads first. */

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--font-weight-regular);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-primary);
  background: var(--gradient-bg-home-signature);
  transition: color var(--transition-base), background var(--transition-base);
}

[data-theme="dark"] body,
body.theme-home {
  background: var(--gradient-bg-home-signature);
}

[data-theme="light"] body {
  background: var(--gradient-bg-home-signature);
}

.shell {
  max-width: var(--container-default);
  margin: 0 auto;
  padding: var(--space-page-gutter);
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

h1 {
  font-size: var(--font-size-title);
  line-height: var(--line-height-title);
}

h2 {
  font-size: var(--font-size-subtitle);
  line-height: var(--line-height-subtitle);
}

p {
  margin: 0;
  color: var(--color-text-secondary);
}

.ds-app-header--hero {
  margin-bottom: var(--space-3);
}

.ds-app-header--hero .ds-app-header__title {
  font-size: var(--font-size-title);
  line-height: var(--line-height-title);
}

.hero-intro {
  margin: 0 0 var(--space-section-stack);
  max-width: 60rem;
  color: var(--color-text-secondary);
}

.section-review-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-6);
  width: 100%;
}

.section-review-controls__group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.section-review-controls #toggleTheme {
  margin-left: auto;
}

.section-review-controls #toggleTheme[aria-pressed="true"] {
  border-color: var(--color-accent);
}

.section,
.type-item,
.state-strip,
.logo-card,
.header-pattern-card,
.bg-card,
.swatch,
.icon-item,
.state {
  transition:
    color var(--transition-base),
    background-color var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.section {
  background: var(--color-surface-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-section);
  padding: var(--space-card-padding);
  margin-bottom: var(--space-6);
}

.section h2 {
  margin: 0;
}

.section-stage {
  background: var(--gradient-surface-panel);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.section-stage h2 {
  font-size: var(--font-size-title);
  line-height: var(--line-height-title);
  margin-bottom: var(--space-2);
}

.section-stage p {
  color: var(--color-text-secondary);
  max-width: 56rem;
}

.section-accordion {
  display: block;
}

.section-accordion > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  cursor: pointer;
  position: relative;
  width: 100%;
  box-sizing: border-box;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.section-accordion > summary::-webkit-details-marker {
  display: none;
}

.section-accordion > summary::after {
  content: "+";
  position: absolute;
  right: 1rem;
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
  font-size: 1.4rem;
  line-height: 1;
}

.section-accordion > summary:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.section-accordion > summary:hover {
  color: var(--color-accent);
}

.section-accordion > summary:active {
  transform: scale(0.995);
}

.section-accordion[open] > summary::after {
  content: "-";
}

.section-body {
  margin-top: var(--space-4);
}

.section-note {
  margin-top: var(--space-3);
}

.section-body > .section-note:first-child {
  margin-top: 0;
}

.bg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.bg-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  min-height: 7rem;
  position: relative;
  overflow: hidden;
}

.bg-card h3 {
  margin-bottom: var(--space-2);
}

.bg-card p {
  color: var(--color-text-secondary);
}

[data-theme="light"] .bg-card {
  border-color: var(--color-border);
  box-shadow: var(--shadow-section);
}

[data-theme="light"] .bg-product,
[data-theme="light"] .bg-ops {
  border-color: var(--color-border-strong);
}

.bg-home {
  background: var(--gradient-bg-home-signature);
}

.bg-product {
  background: var(--gradient-bg-product-standard);
}

.bg-ops {
  background: var(--gradient-bg-ops-console);
}

.bg-surface-panel {
  background: var(--gradient-surface-panel);
}

.bg-surface-card {
  background: var(--gradient-surface-card);
}

.bg-surface-elevated {
  background: var(--gradient-surface-elevated);
}

.tokens-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.swatch {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-overlay-soft);
}

.swatch-chip {
  height: 3.375rem;
}

.swatch-meta {
  padding: var(--space-3);
}

.swatch-meta strong {
  display: block;
  color: var(--color-text-primary);
  margin-bottom: 0.125rem;
}

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

.logo-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-surface-1);
}

.logo-card h3 {
  margin: var(--space-3) 0 var(--space-2);
}

.logo-stage {
  min-height: 7.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.logo-stage-dark {
  background: var(--gradient-surface-elevated);
}

.logo-stage img {
  max-width: 7rem;
  max-height: 5.5rem;
  width: auto;
  height: auto;
  object-fit: contain;
}

.header-pattern-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-1);
  padding: var(--space-4);
  margin-top: var(--space-3);
}

.header-logout-btn {
  border-color: var(--color-border-strong);
  background: var(--color-surface-2);
}

.header-logout-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-1);
}

.header-logout-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.header-pattern-guidance,
.header-pattern-meta {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-2);
}

.header-pattern-guidance p,
.header-pattern-meta p {
  color: var(--color-text-secondary);
}

.space-stack {
  display: grid;
  gap: var(--space-2);
}

.space-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.space-label {
  width: 11rem;
  color: var(--color-text-muted);
  font-size: var(--font-size-caption);
}

.space-bar {
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.type-stack {
  display: grid;
  gap: var(--space-3);
}

.type-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-overlay-soft);
}

.type-meta {
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-caption);
}

.type-display {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-display);
  line-height: var(--line-height-display);
  color: var(--color-text-primary);
}

.type-title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-title);
  line-height: var(--line-height-title);
  color: var(--color-text-primary);
}

.type-subtitle {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-subtitle);
  line-height: var(--line-height-subtitle);
  color: var(--color-text-primary);
}

.type-body-lg {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-body-lg);
}

.type-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
}

.type-caption {
  font-size: var(--font-size-caption);
  line-height: var(--line-height-caption);
}

.demo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

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

.icons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.icon-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-overlay-soft);
  padding: var(--space-3);
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-caption);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.75rem, 1fr));
  gap: var(--space-3);
}

.featured-grid {
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
}

.production-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18.5rem, 1fr));
  gap: var(--space-3);
}

.state-matrix {
  display: grid;
  gap: var(--space-3);
}

.state-strip {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--color-overlay-soft);
}

.state-strip h3 {
  margin-bottom: var(--space-2);
}

.state-featured-grid {
  grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr));
}

.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.state-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.75rem, 1fr));
  gap: var(--space-3);
}

.state {
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.state h3 {
  margin-bottom: var(--space-2);
}

@media (max-width: 47.9375rem) {
  .shell {
    padding: var(--space-4);
  }

  .section {
    padding: var(--space-4);
  }

  .space-label {
    width: 9.5rem;
  }

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

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

/* ── Connection picker (COMPONENTS.md "Connection Picker") ────────────── */

.picker-demo { display: flex; flex-wrap: wrap; gap: var(--space-6); align-items: flex-start; }

.picker-specimens { display: flex; flex-direction: column; gap: var(--space-3); flex: 1 1 18rem; min-width: 0; max-width: 26rem; }

.picker-badge-demo { position: relative; width: 36px; height: 36px; display: grid; place-items: center; color: var(--color-text-secondary); }

/* Native-control specimen row: layout only, the controls stay native. */
.native-controls label {
  display: inline-flex;
  flex-wrap: wrap;
  max-width: 100%;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
}