/**
 * Home page — Theme Showcase.
 * Extracted from the showcase homepage design (feat/homepage-redesign-v2,
 * ADR-0007); staged as home-showcase.css by #682 and renamed to home.css
 * in the #683 atomic swap. Loaded only by apps/site/src/pages/index.astro.
 */

.showcase-page {
  position: relative;
  overflow: hidden;
  background: var(--turbo-bg-base);
  color: var(--turbo-text-primary);
}

.showcase-page .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Decorative glow band behind the hero. Height is pinned to the viewport rather
   than stretched over the whole page (`inset: 0`): the glow layers below offset
   themselves from this box, so a page-height-dependent box made them slide
   whenever late content grew the document — the dominant CLS source on the
   homepage (#781). `contain: layout size` keeps the band out of the surrounding
   layout entirely. */
.showcase-spotlight {
  pointer-events: none;
  position: absolute;
  inset: 0 0 auto;
  height: 120vh;
  z-index: 0;
  overflow: hidden;
  contain: layout size;
}

.showcase-spotlight-left,
.showcase-spotlight-right {
  position: absolute;
  /* Viewport-relative, never a percentage of the containing block: a percentage
     re-resolves as the document grows during load and moves both layers, which
     registers as layout shift (#781). -32vh keeps the rendered glow within a few
     pixels of the previous offset at the 1280x800 reference viewport. The
     horizontal offsets stay percentage-based because the containing block width
     is fixed by the viewport and does not change while the page loads. */
  top: -32vh;
  width: 55vw;
  height: 120vh;
  will-change: transform;
}

.showcase-spotlight-left {
  left: -10%;
  background: radial-gradient(
    ellipse at 30% 30%,
    color-mix(in srgb, var(--turbo-brand-primary) 14%, transparent),
    transparent 70%
  );
}

.showcase-spotlight-right {
  right: -10%;
  background: radial-gradient(
    ellipse at 70% 40%,
    color-mix(in srgb, var(--turbo-state-info) 10%, transparent),
    transparent 72%
  );
}

.showcase-hero {
  position: relative;
  z-index: 1;
  padding: 2rem 1.5rem 2.5rem;
}

.showcase-hero-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  /* Top-align so webfont metric deltas in the copy column do not vertically
     re-center the preview card (dominant CLS source on the homepage, #729). */
  align-items: start;
}

.showcase-hero-copy {
  /* Reserve room for the clamp() headline + lede so late font metrics do not
     push the marquees / sections below as hard when display=optional still
     applies a face within the first paint window. */
  min-height: 22rem;
}

/* .showcase-badge / .showcase-headline → site.css (#685) */

.showcase-text-mask {
  position: relative;
  display: inline-block;
  cursor: default;

  --mx: 50%;
  --my: 50%;
}

.showcase-text-mask-base {
  background: linear-gradient(
    135deg,
    var(--turbo-brand-primary),
    var(--turbo-state-info)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.showcase-text-mask-reveal {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    var(--turbo-brand-primary),
    var(--turbo-state-success),
    var(--turbo-state-info)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  clip-path: circle(0 at var(--mx) var(--my));
  transition: clip-path 0.15s ease;
}

.showcase-text-mask.is-hovering .showcase-text-mask-reveal {
  clip-path: circle(120px at var(--mx) var(--my));
}

/* .showcase-lede / .showcase-cta → site.css (#685) */

/*
 * Scoped as .showcase-page descendants to out-rank the sitewide Noir chrome
 * rule `html:root a`, which pins links to a fixed accent regardless of the
 * active theme (#684). The brand accent is mixed toward the theme's text
 * color so the link keeps WCAG AA contrast on every theme background.
 */
.showcase-page .showcase-theme-more {
  font-size: 0.875rem;
  color: var(--turbo-accent-link, var(--turbo-text-primary));
  text-decoration: underline;
  text-underline-offset: 2px;
  /* Beat chrome link color transitions during theme application. */
  transition: none;
}

.showcase-page .showcase-theme-more:hover {
  text-decoration: underline;
}

.showcase-comet-wrap {
  perspective: 900px;
}

.showcase-comet-card {
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
  transition: box-shadow 0.3s ease;
}

.showcase-comet-card:hover {
  box-shadow: 0 32px 64px color-mix(in srgb, var(--turbo-bg-overlay) 55%, transparent);
}

.showcase-comet-glare {
  position: absolute;
  inset: 0;
  border-radius: 1rem;
  pointer-events: none;
  mix-blend-mode: overlay;
  opacity: 0.5;
  z-index: 2;
}

.showcase-preview {
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-surface);
  transition:
    background 350ms ease,
    border-color 350ms ease;
}

.showcase-preview-bar {
  display: flex;
  gap: 0.375rem;
  padding: 0.625rem 0.75rem;
  background: var(--turbo-bg-overlay);
  border-bottom: 1px solid var(--turbo-border-default);
}

.showcase-preview-bar span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--turbo-border-default);
}

.showcase-preview-body {
  padding: 1rem;
}

.showcase-preview-nav {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0.875rem;
  padding: 0.25rem;
  border-radius: 0.5rem;
  background: var(--turbo-bg-base);
  border: 1px solid var(--turbo-border-default);
}

.showcase-preview-tab {
  flex: 1;
  padding: 0.5rem 0.625rem;
  min-height: 44px;
  border: none;
  border-radius: 0.375rem;
  background: transparent;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--turbo-text-secondary);
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}

.showcase-preview-tab:hover {
  color: var(--turbo-text-primary);
}

.showcase-preview-tab.active {
  background: var(--turbo-bg-surface);
  color: var(--turbo-brand-primary);
  font-weight: 600;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--turbo-bg-overlay) 40%, transparent);
}

.showcase-preview-panels {
  position: relative;
  min-height: 11.5rem;
}

.showcase-preview-panel {
  display: none;
}

.showcase-preview-panel.is-active {
  display: block;
  animation: showcase-panel-in 0.2s ease;
}

@keyframes showcase-panel-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.showcase-preview-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.showcase-preview-stat {
  position: relative;
  overflow: hidden;
  padding: 0.75rem 0.625rem 0.625rem;
  border-radius: 0.625rem;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-base);
}

.showcase-preview-stat-themes {
  border-color: color-mix(
    in srgb,
    var(--turbo-brand-primary) 35%,
    var(--turbo-border-default)
  );
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--turbo-brand-primary) 14%, var(--turbo-bg-base)),
    var(--turbo-bg-base) 55%
  );
}

.showcase-preview-stat-platforms {
  border-color: color-mix(
    in srgb,
    var(--turbo-state-info) 35%,
    var(--turbo-border-default)
  );
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--turbo-state-info) 12%, var(--turbo-bg-base)),
    var(--turbo-bg-base) 55%
  );
}

.showcase-stat-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  filter: blur(18px);
  opacity: 0.55;
  pointer-events: none;
}

.showcase-preview-stat-themes .showcase-stat-glow {
  background: var(--turbo-brand-primary);
}

.showcase-preview-stat-platforms .showcase-stat-glow {
  background: var(--turbo-state-info);
}

.showcase-preview-stat .label {
  display: block;
  position: relative;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--turbo-text-secondary);
}

.showcase-preview-stat strong {
  display: block;
  position: relative;
  margin-top: 0.125rem;
  font-size: 1.625rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(
    135deg,
    var(--turbo-brand-primary),
    var(--turbo-state-info)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.showcase-preview-stat-platforms strong {
  background: linear-gradient(
    135deg,
    var(--turbo-state-info),
    var(--turbo-state-success)
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.showcase-stat-dots {
  display: flex;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.showcase-stat-dots span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--turbo-text-primary) 12%, transparent);
}

.showcase-stat-dots span:nth-child(1) {
  background: var(--turbo-brand-primary);
}

.showcase-stat-dots span:nth-child(2) {
  background: var(--turbo-state-info);
}

.showcase-stat-dots span:nth-child(3) {
  background: var(--turbo-state-success);
}

.showcase-stat-dots span:nth-child(4) {
  background: var(--turbo-state-warning);
}

.showcase-stat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.4375rem;
}

.showcase-stat-chips span {
  padding: 0.1rem 0.35rem;
  border-radius: 9999px;
  font-size: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--turbo-text-primary);
  background: color-mix(in srgb, var(--turbo-state-info) 16%, var(--turbo-bg-surface));
  border: 1px solid color-mix(in srgb, var(--turbo-state-info) 28%, transparent);
}

.showcase-preview-specimens {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 0.625rem;
}

.showcase-specimen-label {
  display: block;
  margin-bottom: 0.3125rem;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--turbo-text-secondary);
}

.showcase-code-block {
  display: block;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--turbo-border-default);
  border-radius: 0.5rem;
  background: var(--turbo-bg-base);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease;
}

.showcase-code-block:hover {
  border-color: var(--turbo-brand-primary);
}

.showcase-code-block code {
  display: block;
  font-family: var(--turbo-font-mono);
  font-size: 0.625rem;
  line-height: 1.55;
  color: var(--turbo-text-primary);
}

.showcase-code-block .tok-prop {
  color: var(--turbo-state-info);
}

.showcase-code-block .tok-fn {
  color: var(--turbo-brand-primary);
}

.showcase-code-block .tok-var {
  color: var(--turbo-state-success);
}

.showcase-type-sample {
  padding: 0.5rem 0.625rem;
  border: 1px solid var(--turbo-border-default);
  border-radius: 0.5rem;
  background: var(--turbo-bg-base);
  display: grid;
  gap: 0.1875rem;
}

.showcase-type-h1,
.showcase-type-h2,
.showcase-type-h3 {
  margin: 0;
  font-family: var(--turbo-font-sans);
  line-height: 1.2;
}

.showcase-type-h1 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--turbo-heading-h1, var(--turbo-brand-primary));
}

.showcase-type-h2 {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--turbo-heading-h2, var(--turbo-state-info));
}

.showcase-type-h3 {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--turbo-heading-h3, var(--turbo-state-success));
}

.showcase-preview-progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.375rem;
  font-size: 0.6875rem;
  color: var(--turbo-text-secondary);
}

.showcase-preview-progress-head strong {
  font-size: 0.75rem;
  color: var(--turbo-brand-primary);
}

.showcase-preview-progress-track {
  height: 0.375rem;
  border-radius: 9999px;
  background: var(--turbo-bg-base);
  border: 1px solid var(--turbo-border-default);
  overflow: hidden;
}

.showcase-preview-progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    var(--turbo-brand-primary),
    var(--turbo-state-info)
  );
  transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.showcase-preview-field {
  display: grid;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  color: var(--turbo-text-secondary);
}

.showcase-preview-input {
  width: 100%;
  padding: 0.5rem 0.625rem;
  border-radius: 0.5rem;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-base);
  color: var(--turbo-text-primary);
  font-size: 0.8125rem;
}

.showcase-preview-input:focus {
  outline: none;
  border-color: var(--turbo-brand-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--turbo-brand-primary) 25%, transparent);
}

.showcase-preview-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}

/* .showcase-badge-pill → site.css (#685) */

.showcase-preview-theme {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
  border-radius: 0.625rem;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-base);
}

.showcase-preview-theme img {
  border-radius: 0.5rem;
  object-fit: contain;
}

.showcase-preview-theme .label {
  display: block;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--turbo-text-secondary);
}

.showcase-preview-theme strong {
  font-size: 1.125rem;
  color: var(--turbo-text-primary);
}

.showcase-preview-hint {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--turbo-text-secondary);
}

.showcase-preview-palette {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: 0.625rem;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-base);
}

.showcase-preview-palette .dot {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--turbo-text-primary) 10%, transparent);
}

.showcase-preview-toast {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--turbo-state-success);
  background: color-mix(
    in srgb,
    var(--turbo-state-success) 15%,
    var(--turbo-bg-surface)
  );
  border: 1px solid color-mix(in srgb, var(--turbo-state-success) 35%, transparent);
  white-space: nowrap;
}

[id='showcase-preview-primary'].is-pressed {
  transform: scale(0.96);
}

[id='showcase-preview-outline'].is-active {
  background: color-mix(in srgb, var(--turbo-brand-primary) 12%, transparent);
  border-color: var(--turbo-brand-primary);
  color: var(--turbo-brand-primary);
}

/* reveal primitives → site.css (#685) */

.showcase-marquees {
  position: relative;
  z-index: 1;
  padding: 1.5rem 0 1.25rem;
  border-top: 1px solid var(--turbo-border-default);
}

.showcase-marquee-footer {
  margin: 1rem 0 0;
  text-align: center;
}

.showcase-marquee-track {
  display: grid;
  gap: 1rem;
  overflow: hidden;
  padding: 0.5rem 0 0.625rem;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.showcase-marquee-row {
  display: flex;
  gap: 1rem;
  width: max-content;
  will-change: transform;
  align-items: center;
}

.showcase-marquee-left {
  animation: showcase-marquee-left 55s linear infinite alternate;
}

.showcase-marquee-right {
  animation: showcase-marquee-right 50s linear infinite alternate;
}

@keyframes showcase-marquee-left {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-100% + min(100vw, 100%) - 3rem));
  }
}

@keyframes showcase-marquee-right {
  from {
    transform: translateX(calc(-100% + min(100vw, 100%) - 3rem));
  }

  to {
    transform: translateX(0);
  }
}

.showcase-marquee-card {
  flex-shrink: 0;
  width: 200px;
  padding: 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid var(--turbo-border-default);
  background: var(--turbo-bg-surface);
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
  position: relative;
  transition:
    transform 0.25s cubic-bezier(0.34, 1.3, 0.64, 1),
    box-shadow 0.25s ease,
    border-color 0.2s ease;
}

.showcase-marquee-card:hover {
  transform: scale(1.05);
  box-shadow: var(--turbo-elevation-md, 0 8px 20px rgba(0, 0, 0, 0.12));
  z-index: 2;
}

.showcase-marquee-card.active {
  border-color: var(--turbo-brand-primary);
  box-shadow:
    0 0 0 1px var(--turbo-brand-primary),
    var(--turbo-elevation-md, 0 8px 20px rgba(0, 0, 0, 0.12));
}

.showcase-marquee-swatch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  background: var(--turbo-bg-base);
  margin-bottom: 0.625rem;
}

.showcase-marquee-icon {
  flex-shrink: 0;
  border-radius: 0.375rem;
  object-fit: contain;
}

.showcase-marquee-dots {
  display: flex;
  gap: 0.3rem;
}

.showcase-marquee-swatch .dot {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
}

.showcase-marquee-name {
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--turbo-text-primary);
}

.showcase-features {
  position: relative;
  z-index: 1;
  padding: 1.5rem 1.5rem 2rem;
  border-top: 1px solid var(--turbo-border-default);
}

/* .showcase-features-grid / .showcase-feature / .showcase-footer-cta → site.css (#685) */

@media (max-width: 900px) {
  .showcase-hero-grid {
    grid-template-columns: 1fr;
  }

  .showcase-hero-copy {
    min-height: 0;
  }
}

/* feature-grid responsive rules (incl. mobile double-border fix) → site.css (#685) */

@media (prefers-reduced-motion: reduce) {
  .showcase-marquee-left,
  .showcase-marquee-right {
    animation: none;
  }

  /* reveal reduced-motion → site.css (#685) */
}