/* HYPERPART: carousel */
/*
 * Content strip — media and/or HTML fragments. Decision 0009 +
 * stems/pragmatic-gallery-aesthetics.md.
 *
 * Stage: fixed aspect (data-dz-ratio). Media defaults to full-bleed cover so
 * demos look intentional; teach source aspect with captions, not letterbox gutters.
 * Hero slides: media + gradient overlay (hypermedia stays in-family).
 */

.dz-carousel {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  max-width: 42rem;
}

.dz-carousel[data-dz-size="sm"] {
  max-width: 28rem;
}

.dz-carousel[data-dz-size="lg"] {
  max-width: 56rem;
}

.dz-carousel__viewport {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--colour-border);
  /* Match media letterbox-free stage (no dark gutter bands). */
  background: var(--colour-surface);
  aspect-ratio: 16 / 9;
}

.dz-carousel__viewport[data-dz-ratio="1/1"] {
  aspect-ratio: 1 / 1;
}
.dz-carousel__viewport[data-dz-ratio="4/3"] {
  aspect-ratio: 4 / 3;
}
.dz-carousel__viewport[data-dz-ratio="16/9"] {
  aspect-ratio: 16 / 9;
}
.dz-carousel__viewport[data-dz-ratio="21/9"] {
  aspect-ratio: 21 / 9;
}

.dz-carousel__track {
  display: grid;
  grid-template-areas: "slide";
  height: 100%;
}

.dz-carousel__slide {
  grid-area: slide;
  display: none;
  position: relative;
  align-items: center;
  justify-content: center;
  min-height: 0;
  min-width: 0;
  padding: 0;
  color: var(--colour-text-muted);
  font-size: var(--text-sm);
}

.dz-carousel__slide[data-dz-active] {
  display: flex;
}

/* Full-bleed media — cover fills the stage (no black bars). */
.dz-carousel__slide--media {
  background: var(--colour-surface);
}

.dz-carousel__media {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  box-sizing: border-box;
  position: relative;
}

.dz-carousel__media img,
.dz-carousel__media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Explicit contain (letterbox) when the lesson is mixed intrinsic size */
.dz-carousel__media--contain {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--colour-surface-muted);
  padding: 0;
}
.dz-carousel__media--contain img,
.dz-carousel__media--contain svg {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* Cover frame via composed aspect-ratio (fills media slot). */
.dz-carousel__media--cover {
  display: block;
}
.dz-carousel__media--cover .dz-aspect-ratio {
  width: 100%;
  height: 100%;
  border-radius: 0;
  background: transparent;
}

/* Source-aspect chip (teaches policy without ugly gutters) */
.dz-carousel__chip {
  position: absolute;
  top: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: 1;
  margin: 0;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: oklch(0% 0 0 / 0.55);
  color: oklch(100% 0 0);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1.2;
  pointer-events: none;
}

/* Hero: media + bottom gradient + in-family CTA (not a floating admin card) */
.dz-carousel__slide--hero {
  display: none;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-end;
}
.dz-carousel__slide--hero[data-dz-active] {
  display: flex;
}
.dz-carousel__slide--hero > .dz-carousel__media {
  position: absolute;
  inset: 0;
}
.dz-carousel__hero {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding: var(--space-lg) var(--space-md) var(--space-md);
  background: linear-gradient(
    to top,
    oklch(12% 0.02 260 / 0.92) 0%,
    oklch(12% 0.02 260 / 0.55) 55%,
    oklch(12% 0.02 260 / 0) 100%
  );
  color: oklch(98% 0 0);
  text-align: start;
}
.dz-carousel__hero-kicker {
  margin: 0 0 0.15rem;
  font-size: var(--text-xs);
  opacity: 0.85;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.dz-carousel__hero-title {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  line-height: 1.25;
  color: inherit;
}
.dz-carousel__hero-text {
  margin: 0.35rem 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  opacity: 0.9;
  max-width: 28rem;
}
.dz-carousel__hero .dz-button {
  margin-top: var(--space-sm);
}
.dz-carousel__hero-live {
  margin-top: var(--space-xs);
  min-height: 1.25rem;
  font-size: var(--text-xs);
}

.dz-carousel__caption {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--colour-text-muted);
  line-height: var(--leading-normal);
}

.dz-carousel__status {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--colour-text-muted);
  text-align: center;
}

.dz-carousel__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.dz-carousel__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  min-height: 2.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--colour-border);
  background: var(--colour-surface);
  color: var(--colour-text);
  font-size: var(--text-lg);
  line-height: 1;
  cursor: pointer;
}

.dz-carousel__btn:hover {
  background: var(--colour-surface-muted);
}

.dz-carousel__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.dz-carousel__dots {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.dz-carousel__dot {
  position: relative;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  border: none;
  padding: 0;
  background: transparent;
  cursor: pointer;
  flex: none;
}

.dz-carousel__dot::before {
  content: "";
  position: absolute;
  inset: 50%;
  width: 0.5rem;
  height: 0.5rem;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: var(--colour-border);
}

.dz-carousel__dot[aria-current="true"]::before {
  background: var(--colour-brand);
  width: 1rem;
}

@media (prefers-reduced-motion: reduce) {
  /* Autoplay disabled in JS; status text explains off state. */
}