/* ==========================================================================
   Extra image layouts for the project pages.
   Load AFTER styles.css:  <link rel="stylesheet" href="media-layouts.css">

   1. .media-grid        A grid of images (2x2 by default)
   2. .strip             A row of smaller images you scroll/swipe, with arrows
   3. .strip--belt       The same row, but it moves on its own like a conveyor belt
   ========================================================================== */

:root {
  --media-gap: 2px;                 /* space between images */
  --thumb-w: clamp(7rem, 42vw, 16rem);
  --thumb-ratio: 4 / 3;
}

@media (min-width: 900px) {
  :root { --thumb-w: clamp(7rem, 11vw, 16rem); }
}

/* Space between stacked blocks inside a project */
.media-grid,
.strip { margin-top: var(--media-gap); }

.project > .media-grid:first-child,
.project > .strip:first-child { margin-top: 0; }

/* ==========================================================================
   1. Grid
   Change columns per grid:  style="--grid-cols: 3"
   Change cell shape:        style="--ratio: 4 / 3"
   ========================================================================== */
.media-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols, 2), minmax(0, 1fr));
  gap: var(--media-gap);
}

.media-grid .media,
.media-grid .media.is-missing { aspect-ratio: var(--ratio, 1); }

.media-grid .media img {
  height: 100%;
  object-fit: cover;               /* crops to fill each cell; remove for uncropped images */
}

/* Optional: one image spans the full width, e.g. 1 big + 2 small */
.media-grid .media--wide,
.media-grid .media--wide.is-missing {
  grid-column: 1 / -1;
  aspect-ratio: var(--ratio-wide, 7 / 5);
}

/* ==========================================================================
   2. Strip (manual carousel). Arrows are added by media-layouts.js
   Thumbnail width:  style="--thumb-w: 10rem"
   Thumbnail shape:  style="--thumb-ratio: 1 / 1"
   ========================================================================== */
.strip { position: relative; }

.strip__track {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.strip__track::-webkit-scrollbar { display: none; }

.strip .media,
.strip .media.is-missing {
  flex: none;
  width: var(--thumb-w);
  aspect-ratio: var(--thumb-ratio);
  margin-right: var(--media-gap);
  scroll-snap-align: start;
}

.strip .media img {
  height: 100%;
  object-fit: cover;
}

.strip .media.is-missing::after {
  padding: 0.5rem;
  font-size: 0.7rem;
  text-align: center;
  overflow-wrap: anywhere;
}

/* Arrow buttons and the belt's pause button */
.strip__btn,
.strip__pause {
  position: absolute;
  z-index: 1;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: rgba(23, 23, 23, 0.85);
  color: var(--fg);
  font: inherit;
  cursor: pointer;
  transition: opacity 0.15s ease, background-color 0.15s ease;
}
.strip__btn:hover,
.strip__pause:hover { background: rgba(23, 23, 23, 0.97); }

.strip__btn {
  top: 50%;
  width: 2.25rem;
  height: 2.25rem;
  transform: translateY(-50%);
  font-size: 1rem;
}
.strip__btn--prev { left: 0.5rem; }
.strip__btn--next { right: 0.5rem; }
.strip__btn:disabled { opacity: 0; pointer-events: none; }

@media (min-width: 900px) {
  /* keep the left arrow clear of the fold in the middle of the spread */
  .strip__btn--prev { left: clamp(1rem, 3.5vw, 3rem); }
}

/* ==========================================================================
   3. Conveyor belt
   Speed in pixels per second:  data-speed="60"   (default 40)
   The JS adds .is-running; without JS this just behaves like a normal strip.
   ========================================================================== */
@keyframes belt {
  to { transform: translateX(-50%); }
}

.strip--belt.is-running { overflow: hidden; }

.strip--belt.is-running .strip__track {
  width: max-content;
  overflow: visible;
  scroll-snap-type: none;
  animation: belt 60s linear infinite;   /* duration is set by the JS from data-speed */
}

.strip--belt.is-running:hover .strip__track,
.strip--belt.is-running.is-paused .strip__track { animation-play-state: paused; }

.strip__pause {
  right: 0.5rem;
  bottom: 0.5rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
}