/* section-what-if — Figma node 189:43 ("А что, если…?").
   A horizontal "scrapbook on a wooden desk" strip: three paper pages plus
   scattered photos/polaroids, all laid out on a fixed 2241×851 design
   canvas (percentages below are that canvas's px values converted to
   %-of-width / %-of-height so the whole composition scales uniformly
   with viewport height via aspect-ratio, see .what-if__track).
   Element order in the markup follows Figma's own layer order exactly,
   since some photos are meant to sit under the pages/other photos.

   Behavior (not present in the static Figma frame — implemented per
   product spec): once scrolled into view the section pins for a full
   viewport height on every device. The wood-desk background sits on its
   own layer and drifts slower than the foreground for a parallax effect.
   The heading stays fixed at the top of the screen for the whole pin.

   Mobile/tablet (<1200px) use .what-if__track: vertical scroll distance
   steps it through 6 snapping frames (each spread gets a left-half and
   right-half frame) instead of following the scroll 1:1.

   Desktop (≥1200px) uses .what-if__spreads instead: 3 pre-composited
   full-spread images (exported whole from Figma, one per diary), one
   wheel gesture = one spread, via wheel-event interception rather than
   scroll distance. Driven by js/what-if-scroll.js. */

.what-if {
  position: relative;
  margin-top: 100px;
  background: var(--color-brown);
}

@media (min-width: 1200px) {
  .what-if {
    margin-top: 200px;
  }
}

.what-if__pin {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.what-if__bg {
  position: absolute;
  inset: 0;
  background-image: url('../../images/Group 25.webp');
  background-repeat: repeat-x;
  background-size: auto 900px;
  background-position: top center;
  will-change: background-position;
}

.what-if__heading {
  position: absolute;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  margin: 0;
  padding-bottom: 50px;
  font-family: 'Kudryashev Display', serif;
  font-weight: 400;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.34px;
  color: var(--color-cream-pale);
  text-align: center;
  white-space: nowrap;
  pointer-events: none;
}

@media (min-width: 1200px) {
  .what-if__heading {
    font-size: 48px;
  }
}

.what-if__track {
  position: relative;
  flex: 0 0 auto;
  height: 100vh;
  aspect-ratio: 2241 / 851;
  will-change: transform;
  transition: transform 0.6s cubic-bezier(0.65, 0, 0.35, 1);
}

.what-if__page {
  position: absolute;
  left: 1.07%;
  top: 26.32%;
  width: 31.02%;
  height: 59.34%;
}

.what-if__page--2 {
  left: 34.49%;
}

.what-if__page--3 {
  left: 67.96%;
}

/* Loose photos — plain rotated rects, exactly as authored in Figma
   (no card/shadow layer behind them there, so none added here). */
.what-if__deco {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--w);
  height: var(--h);
  transform: translate(-50%, -50%) rotate(var(--r, 0deg));
  object-fit: cover;
}

/* Pre-composited assets exported straight from Figma (polaroid frames,
   film-strip groups) — rotation and shadow are already baked into the
   PNG, so these are placed unrotated at their outer bounding box with
   height:auto to keep the exported image's own proportions. */
.what-if__composite {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--w);
  height: auto;
}

/* Desktop-only: 3 whole pre-composited spreads, one per diary. */
.what-if__spreads {
  display: none;
}

@media (min-width: 1200px) {
  .what-if__track {
    display: none;
  }

  .what-if__spreads {
    display: flex;
    position: absolute;
    top: 232px; /* heading box (70px top + 48px line + 50px padding) + 64px gap */
    left: 0;
    right: 0;
    bottom: 0;
    will-change: transform;
    transition: transform 0.6s cubic-bezier(0.65, 0, 0.35, 1);
  }
}

.what-if__spread-slot {
  flex: 0 0 100vw;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.what-if__spread {
  max-width: 90vw;
  max-height: calc(82vh + 50px);
  width: auto;
  height: auto;
}