/* =========================================
   Demo / Showcase stylesheet
   Extends styles.css tokens for showcase.html's library demos.
   No hardcoded colors — everything reads var(--...) from styles.css
   so it survives [data-theme] switching (default/bolder/shadcn/brutal).
========================================= */

.demo-main {
  width: 100%;
  max-width: 1080px;
  margin: clamp(40px, 8vh, 88px) auto 120px;
  padding: 0 24px;
  text-align: left;
}

.demo-intro {
  text-align: center;
  margin-bottom: clamp(48px, 8vw, 88px);
}

.demo-intro h1 {
  font-size: var(--step-4);
  color: var(--text-main);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 16px;
}

.demo-intro p {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step-1);
  color: var(--text-secondary);
  max-width: 64ch;
  margin: 0 auto;
}

.demo-section {
  padding: clamp(32px, 5vw, 56px) 0;
  border-top: 1px solid var(--neutral-200);
}

.demo-section:first-of-type {
  border-top: none;
}

.demo-section h2 {
  font-family: "Rosarivo", cursive;
  font-size: var(--step-3);
  color: var(--text-main);
  margin: 0 0 8px;
}

.demo-lede {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step-0);
  color: var(--text-secondary);
  max-width: 68ch;
  margin: 0 0 28px;
}

.demo-lib-tag {
  display: inline-block;
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--brand-primary);
  background: var(--accent-surface);
  border-radius: var(--radius-small);
  padding: 4px 10px;
  margin-bottom: 12px;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: start;
}

.demo-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-medium);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.demo-card h3 {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step-0);
  color: var(--text-main);
  margin: 0 0 6px;
}

.demo-card p.demo-card-note {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
  margin: 0 0 16px;
}

.demo-callout {
  margin-top: 24px;
  padding: 14px 18px;
  background: var(--accent-surface);
  border-radius: var(--radius-small);
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-main);
}

.demo-callout strong {
  color: var(--brand-primary);
}

/* --- Motion 1a: spring-tilt card --- */
.tilt-stage {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 800px;
}

.tilt-card {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-medium);
  background: var(--brand-primary);
  color: var(--neutral-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Rosarivo", cursive;
  font-style: italic;
  font-size: var(--step-1);
  box-shadow: var(--shadow-soft);
  will-change: transform;
  cursor: grab;
}

/* --- Motion 1b: shared-layout expand --- */
.expand-thumbs {
  display: flex;
  gap: 12px;
}

.expand-thumb {
  flex: 1;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-small);
  overflow: hidden;
  border: none;
  padding: 0;
  cursor: pointer;
  background: var(--neutral-200);
}

.expand-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.expand-panel {
  display: none;
  margin-top: 16px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  background: var(--neutral-100);
  box-shadow: var(--shadow-soft);
}

.expand-panel.is-open {
  display: grid;
  grid-template-columns: minmax(0, 180px) 1fr;
}

.expand-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.expand-panel-body {
  padding: 20px;
  text-align: left;
}

.expand-panel-body h4 {
  font-family: "Rosarivo", cursive;
  font-size: var(--step-1);
  margin: 0 0 4px;
  color: var(--text-main);
}

.expand-panel-body p {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
  margin: 4px 0;
}

.expand-panel-close {
  margin-top: 12px;
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--brand-primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

/* --- Motion 1c: drag-reorder chips --- */
.chip-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  min-height: 44px;
  padding: 10px;
  border: 1px dashed var(--neutral-300);
  border-radius: var(--radius-small);
}

.chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--brand-primary);
  background: var(--accent-surface);
  border-radius: var(--radius-small);
  padding: 8px 12px;
  touch-action: none;
  user-select: none;
  cursor: grab;
}

.chip.dragging {
  cursor: grabbing;
  z-index: 5;
  box-shadow: var(--shadow-soft);
}

.chip button {
  border: none;
  background: none;
  color: var(--brand-primary);
  cursor: pointer;
  font-size: var(--step--1);
  line-height: 1;
  padding: 0;
}

.demo-tool-row {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.demo-btn {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--neutral-50);
  background: var(--brand-primary);
  border: none;
  border-radius: var(--radius-small);
  padding: 8px 16px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.demo-btn:hover {
  background: var(--brand-primary-hover);
}

.demo-hint {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
}

/* --- anime.js 2a: staggered headline replay --- */
.anime-headline {
  font-family: "Rosarivo", cursive;
  font-style: italic;
  font-size: var(--step-2);
  color: var(--text-main);
  margin: 0 0 16px;
}

.anime-headline .word {
  display: inline-block;
  will-change: transform, opacity;
}

/* --- anime.js 2b: SVG line-draw monogram --- */
.mac-mark-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 160px;
  cursor: pointer;
}

.mac-mark path {
  fill: none;
  stroke: var(--brand-primary);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- anime.js 2c: scrubbable timeline --- */
.scrub-diagram {
  display: flex;
  justify-content: space-between;
  padding: 0 8px;
  margin-bottom: 20px;
}

.scrub-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.35;
  transform: scale(0.9);
}

.scrub-stage .dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--brand-primary);
}

.scrub-stage span {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
}

.scrub-track {
  position: relative;
  height: 4px;
  background: var(--neutral-200);
  border-radius: var(--radius-small);
  margin: 0 8px;
}

.scrub-track-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: var(--brand-primary);
  border-radius: var(--radius-small);
}

.scrub-handle {
  position: absolute;
  top: 50%;
  left: 0%;
  width: 20px;
  height: 20px;
  margin-left: -10px;
  margin-top: -10px;
  background: var(--brand-primary);
  border: 3px solid var(--neutral-50);
  border-radius: 50%;
  box-shadow: var(--shadow-soft);
  cursor: grab;
  touch-action: none;
}

/* --- bklit-ui / kokonutui React islands --- */
.island-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.island-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-medium);
  padding: 20px;
  box-shadow: var(--shadow-soft);
}

.island-card h3 {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step-0);
  margin: 0 0 4px;
  color: var(--text-main);
}

.island-card .island-note {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
  margin: 0 0 12px;
}

/* Recharts theming — structural chrome (grid/axis text) is themed via
   real CSS against Recharts' stable generated classNames, which
   re-resolves var() live on [data-theme] switches. Series fill/stroke
   colors are resolved in JS (getComputedStyle + a MutationObserver on
   [data-theme], see useThemeColor in the bklit island script) and
   passed as element props, since fill/stroke set as bare SVG
   attributes don't reliably re-resolve var() the way stylesheet rules
   do — and Recharts' per-series classNames aren't stable enough to
   target from a stylesheet. */
.recharts-cartesian-axis-tick text,
.recharts-polar-angle-axis-tick text {
  fill: var(--text-secondary);
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
}

.recharts-cartesian-grid-horizontal line,
.recharts-cartesian-grid-vertical line,
.recharts-polar-grid-concentric-polygon,
.recharts-polar-grid-angle-line {
  stroke: var(--neutral-200);
}

.stat-gauge-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-gauge-number {
  font-family: "Rosarivo", cursive;
  font-size: var(--step-4);
  color: var(--brand-primary);
  line-height: 1;
}

.stat-gauge-label {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
  text-align: center;
}

/* kokonutui mechanics */
.kkn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: flex-start;
}

.kkn-btn {
  font-family: "Red Hat Display", sans-serif;
  font-weight: 600;
  font-size: var(--step-0);
  color: var(--neutral-50);
  background: var(--brand-primary);
  border: none;
  border-radius: var(--radius-small);
  padding: 14px 28px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.kkn-btn:hover {
  background: var(--brand-primary-hover);
}

.kkn-card {
  width: 200px;
  padding: 20px;
  border-radius: var(--radius-medium);
  background: var(--accent-surface);
  border: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.kkn-card h4 {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step-0);
  margin: 0 0 6px;
  color: var(--text-main);
}

.kkn-card p {
  font-family: "Red Hat Display", sans-serif;
  font-size: var(--step--1);
  color: var(--text-secondary);
  margin: 0;
}

.kkn-card:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 20%, transparent), var(--shadow-soft);
  transform: translateY(-6px);
}

.kkn-marquee {
  flex-basis: 100%;
  overflow: hidden;
  border-top: 1px solid var(--neutral-200);
  border-bottom: 1px solid var(--neutral-200);
  padding: 14px 0;
}

.kkn-marquee-track {
  display: flex;
  gap: 40px;
  width: max-content;
  font-family: "Rosarivo", cursive;
  font-style: italic;
  font-size: var(--step-1);
  color: var(--brand-primary);
  animation: kkn-marquee 16s linear infinite;
}

@keyframes kkn-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .kkn-marquee-track {
    animation: none;
    flex-wrap: wrap;
    width: auto;
  }

  .kkn-card {
    transition: none;
  }

  .kkn-card:hover {
    transform: none;
  }
}

@media (max-width: 640px) {
  .expand-panel.is-open {
    grid-template-columns: 1fr;
  }
}