/* ==========================================================================
   PPCM Theme — Unified Carousel (stories + gallery)
   Overrides the scroll-snap / grid-area approaches with a flex + transform
   slider driven by carousel.js via [data-carousel-type].
   ========================================================================== */

/* ---- Stories carousel ---- */
[data-carousel-type="stories"] {
  position: relative;
  overflow: hidden;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

[data-carousel-type="stories"] .stories__track {
  display: flex;
  overflow: visible;
  transition: transform 0.4s ease;
  scroll-snap-type: none;
  gap: 0;
  padding: 4px 0 14px;
  will-change: transform;
}

[data-carousel-type="stories"] .story-slide {
  flex-shrink: 0;
  scroll-snap-align: unset;
}

[data-carousel-type="stories"] .stories__nav {
  display: grid !important;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  place-items: center;
  cursor: pointer;
  font-size: 18px;
  transition: background 0.2s, box-shadow 0.2s;
}

[data-carousel-type="stories"] .stories__nav:hover {
  background: var(--color-bg-muted);
  box-shadow: var(--shadow-md);
}

[data-carousel-type="stories"] .stories__nav--prev { left: 8px; }
[data-carousel-type="stories"] .stories__nav--next { right: 8px; }

/* ---- Gallery carousel ---- */
[data-carousel-type="gallery"] {
  overflow: hidden;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

[data-carousel-type="gallery"] .infra-carousel__track {
  display: flex;
  overflow: visible;
  transition: transform 0.4s ease;
  aspect-ratio: 16 / 9;
  will-change: transform;
}

[data-carousel-type="gallery"] .infra-carousel__slide,
[data-carousel-type="gallery"] .infra-carousel__slide.is-active {
  flex-shrink: 0;
  width: 100%;
  height: 100%;
  grid-area: auto;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: none;
  z-index: auto;
}

[data-carousel-type="gallery"] .infra-carousel__slide .infra-carousel__placeholder,
[data-carousel-type="gallery"] .infra-carousel__slide .infra-carousel__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- Shared dot styles (JS-generated for stories) ---- */
.ppcm-carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.ppcm-carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s, border-color 0.2s;
}

.ppcm-carousel__dot:hover {
  border-color: var(--color-accent);
  background: rgba(255, 107, 53, 0.2);
}

.ppcm-carousel__dot.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.25);
}

/* ---- Responsive: tablet ---- */
@media (max-width: 992px) {
  [data-carousel-type="stories"] .stories__nav--prev { left: 6px; }
  [data-carousel-type="stories"] .stories__nav--next { right: 6px; }
}

/* ---- Responsive: tablet-portrait ---- */
@media (max-width: 768px) {
  /* Stories: stack cards vertically on mobile */
  [data-carousel-type="stories"] {
    overflow: visible !important;
  }

  [data-carousel-type="stories"] .stories__track {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
    transform: none !important;
    overflow: visible !important;
    transition: none !important;
    will-change: auto !important;
    grid-auto-flow: unset !important;
    grid-auto-columns: unset !important;
    scroll-snap-type: none !important;
  }

  [data-carousel-type="stories"] .story-slide {
    width: 100% !important;
    min-width: 0 !important;
    margin-right: 0 !important;
    flex-shrink: 0 !important;
    scroll-snap-align: unset !important;
  }

  [data-carousel-type="stories"] .stories__nav {
    display: none !important;
  }

  [data-carousel-type="stories"] .ppcm-carousel__dots,
  [data-carousel-type="stories"] .stories__dots {
    display: none !important;
  }

  /* Gallery: slightly smaller arrows on tablet */
  [data-carousel-type="gallery"] .infra-carousel__arrow {
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }
  [data-carousel-type="gallery"] .infra-carousel__arrow--prev { left: 10px; }
  [data-carousel-type="gallery"] .infra-carousel__arrow--next { right: 10px; }

  .ppcm-carousel__dots {
    margin-top: 12px;
  }
}

/* ---- Responsive: mobile ---- */
@media (max-width: 576px) {
  [data-carousel-type="gallery"] .infra-carousel__track {
    aspect-ratio: 4 / 3;
  }

  [data-carousel-type="gallery"] .infra-carousel__arrow {
    width: 34px;
    height: 34px;
    font-size: 0.8rem;
  }
  [data-carousel-type="gallery"] .infra-carousel__arrow--prev { left: 6px; }
  [data-carousel-type="gallery"] .infra-carousel__arrow--next { right: 6px; }

  .ppcm-carousel__dots {
    gap: 6px;
    margin-top: 10px;
  }

  .ppcm-carousel__dot {
    width: 8px;
    height: 8px;
  }
}

/* ---- Impact page: student video stories (grid desktop, swipe carousel ≤768px) ---- */
[data-carousel-type="impact-videos"] {
  position: relative;
  overflow: visible;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

[data-carousel-type="impact-videos"] .impact-video-carousel__track {
  display: flex;
  transition: transform 0.4s ease;
  will-change: transform;
  gap: 0;
  padding: 4px 0 8px;
}

[data-carousel-type="impact-videos"] .impact-video-carousel__slide {
  flex-shrink: 0;
}

[data-carousel-type="impact-videos"] .impact-video-carousel__nav {
  display: none;
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  place-items: center;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-primary);
  transition: background 0.2s, box-shadow 0.2s;
}

[data-carousel-type="impact-videos"] .impact-video-carousel__nav:hover {
  background: var(--color-bg-muted);
  box-shadow: var(--shadow-md);
}

[data-carousel-type="impact-videos"] .impact-video-carousel__nav--prev {
  left: 6px;
}

[data-carousel-type="impact-videos"] .impact-video-carousel__nav--next {
  right: 6px;
}

@media (min-width: 769px) {
  [data-carousel-type="impact-videos"] {
    overflow: visible;
  }

  [data-carousel-type="impact-videos"] .impact-video-carousel__track {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    transform: none !important;
    transition: none !important;
    will-change: auto;
    padding: 0;
  }

  [data-carousel-type="impact-videos"] .impact-video-carousel__slide {
    width: 100% !important;
    margin-right: 0 !important;
    min-width: 0;
  }

  [data-carousel-type="impact-videos"] .impact-video-carousel__nav,
  [data-carousel-type="impact-videos"] .ppcm-carousel__dots {
    display: none !important;
  }
}

@media (max-width: 768px) {
  [data-carousel-type="impact-videos"] {
    overflow: hidden;
    width: 100%;
    max-width: 100%;
  }

  /*
   * One video: carousel.js returns early (total < 2), so no inline widths are set.
   * Without flex-basis / width, flex slides collapse on mobile and the iframe disappears.
   */
  [data-carousel-type="impact-videos"] .impact-video-carousel__track {
    display: flex;
    width: 100%;
    max-width: 100%;
  }

  [data-carousel-type="impact-videos"] .impact-video-carousel__slide {
    flex: 0 0 100%;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }

  [data-carousel-type="impact-videos"] .impact-video-carousel__nav {
    display: grid;
  }
}