/* ==========================================================================
   PCO Events Carousel – Styles
   ========================================================================== */

/* Custom properties – override these in your theme for easy customisation. */
:root {
  --pco-carousel-max-width: 900px;
  --pco-carousel-aspect-ratio: 16 / 9;
  --pco-carousel-radius: 12px;
  --pco-carousel-gap: 0px;
  --pco-carousel-transition: 0.45s cubic-bezier(0.4, 0, 0.2, 1);

  --pco-carousel-caption-bg: rgba(0, 0, 0, 0.62);
  --pco-carousel-caption-color: #ffffff;
  --pco-carousel-caption-padding: 1rem 1.25rem 1.25rem;

  --pco-carousel-btn-size: 44px;
  --pco-carousel-btn-bg: rgba(255, 255, 255, 0.9);
  --pco-carousel-btn-hover-bg: #ffffff;
  --pco-carousel-btn-color: #1a1a1a;
  --pco-carousel-btn-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);

  --pco-carousel-dot-size: 10px;
  --pco-carousel-dot-color: rgba(255, 255, 255, 0.5);
  --pco-carousel-dot-active-color: #ffffff;
}

/* --------------------------------------------------------------------------
   Wrapper
   -------------------------------------------------------------------------- */

.pco-carousel-wrapper {
  position: relative;
  width: 100%;
  max-width: var(--pco-carousel-max-width);
  margin: 1.5rem auto;
  border-radius: var(--pco-carousel-radius);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  background: #111;
}

/* --------------------------------------------------------------------------
   Track / Slides
   -------------------------------------------------------------------------- */

.pco-carousel-track-outer {
  overflow: hidden;
  width: 100%;
}

.pco-carousel-track {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  /* JS sets transform: translateX(-N * 100%) to scroll */
  transition: transform var(--pco-carousel-transition);
  will-change: transform;
}

.pco-carousel-slide {
  flex: 0 0 100%;
  min-width: 100%;
  position: relative;
  /* Inherit border-radius from wrapper clip */
}

/* Slide link – make the whole slide clickable */
.pco-carousel-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.pco-carousel-link:focus-visible {
  outline: 3px solid #fff;
  outline-offset: -3px;
}

/* --------------------------------------------------------------------------
   Image
   -------------------------------------------------------------------------- */

.pco-carousel-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: var(--pco-carousel-aspect-ratio);
  overflow: hidden;
  background: #222;
}

.pco-carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.pco-carousel-link:hover .pco-carousel-image,
.pco-carousel-link:focus-visible .pco-carousel-image {
  transform: scale(1.03);
}

/* Placeholder when no image is available */
.pco-carousel-image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #555;
  background: #1a1a1a;
}

/* --------------------------------------------------------------------------
   Caption
   -------------------------------------------------------------------------- */

.pco-carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--pco-carousel-caption-padding);
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0) 100%);
  color: var(--pco-carousel-caption-color);
}

.pco-carousel-title {
  margin: 0 0 0.25rem;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  line-height: 1.25;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

.pco-carousel-date {
  display: flex;
  align-items: center;
  gap: 0.35em;
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  opacity: 0.9;
}

.pco-carousel-date svg {
  flex-shrink: 0;
}

.pco-carousel-summary {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.45;
  opacity: 0.9;
  /* Clamp to two lines */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Prev / Next buttons
   -------------------------------------------------------------------------- */

.pco-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--pco-carousel-btn-size);
  height: var(--pco-carousel-btn-size);
  border: none;
  border-radius: 50%;
  background: var(--pco-carousel-btn-bg);
  color: var(--pco-carousel-btn-color);
  cursor: pointer;
  box-shadow: var(--pco-carousel-btn-shadow);
  transition: background 0.2s, transform 0.2s, opacity 0.2s;
  padding: 0;
  /* Keep the caption gradient from overlapping */
  bottom: auto;
}

.pco-carousel-btn--prev { left: 12px; }
.pco-carousel-btn--next { right: 12px; }

.pco-carousel-btn:hover,
.pco-carousel-btn:focus-visible {
  background: var(--pco-carousel-btn-hover-bg);
  transform: translateY(-50%) scale(1.08);
}

.pco-carousel-btn:focus-visible {
  outline: 3px solid #2271b1;
  outline-offset: 2px;
}

.pco-carousel-btn:disabled {
  opacity: 0.35;
  cursor: default;
  transform: translateY(-50%);
}

/* --------------------------------------------------------------------------
   Dot navigation
   -------------------------------------------------------------------------- */

.pco-carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.pco-carousel-dot {
  width: var(--pco-carousel-dot-size);
  height: var(--pco-carousel-dot-size);
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: var(--pco-carousel-dot-color);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.pco-carousel-dot.is-active,
.pco-carousel-dot[aria-selected="true"] {
  background: var(--pco-carousel-dot-active-color);
  border-color: #fff;
  transform: scale(1.25);
}

.pco-carousel-dot:focus-visible {
  outline: 3px solid #2271b1;
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Utility / status messages
   -------------------------------------------------------------------------- */

.pco-carousel-error,
.pco-carousel-empty {
  padding: 1rem;
  border: 1px solid currentColor;
  border-radius: 6px;
  max-width: var(--pco-carousel-max-width);
  margin: 1rem auto;
}

.pco-carousel-error { color: #c0392b; border-color: #e74c3c; background: #fdf0ef; }
.pco-carousel-empty { color: #555; border-color: #ccc; background: #f9f9f9; }

/* --------------------------------------------------------------------------
   Reduced-motion preference
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .pco-carousel-track {
    transition: none;
  }
  .pco-carousel-image {
    transition: none;
  }
  .pco-carousel-btn,
  .pco-carousel-dot {
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   Responsive tweaks
   -------------------------------------------------------------------------- */

@media (max-width: 600px) {
  .pco-carousel-btn {
    --pco-carousel-btn-size: 36px;
  }
  .pco-carousel-btn--prev { left: 6px; }
  .pco-carousel-btn--next { right: 6px; }

  .pco-carousel-title {
    font-size: 1rem;
  }
}