/* ---------- The scroll story: one pinned stage, the film inside a soft round window ---------- */

.story {
  position: relative;
  height: calc(var(--story-len, 1630) * 1vh + 100svh);
  background: var(--scene);
}

.story__stage {
  --film: min(100svh, 62vw);
  position: sticky;
  top: 0;
  height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background: var(--scene);
  color: var(--scene-fg);
}

/* Keeps the copy readable where its column overlaps the film */
.story__stage::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    90deg,
    var(--scene) 0%,
    color-mix(in srgb, var(--scene) 72%, transparent) 30%,
    transparent 52%
  );
  pointer-events: none;
}

.film {
  position: absolute;
  top: 50%;
  right: max(0px, calc((100vw - var(--film)) * 0.04));
  z-index: 1;
  width: var(--film);
  aspect-ratio: 1;
  translate: 0 -50%;
}

/*
 * The soft round window: the film's edges dissolve into the stage colour. An overlay looks the same
 * as a mask here (the stage behind is that colour) but costs nothing to composite while the layers
 * underneath move; a mask over moving layers made phones redraw the whole film every frame.
 */
.film::after {
  content: '';
  position: absolute;
  inset: -1px;
  background: radial-gradient(
    closest-side,
    transparent 64%,
    color-mix(in srgb, var(--scene) 40%, transparent) 82%,
    var(--scene) 100%
  );
  pointer-events: none;
}

.film__layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform, opacity;
}

.film__layer[data-layer='seq'] {
  transform-origin: 50% 57.6%;
}

.film__layer[data-layer='night'],
.film__layer[data-layer='salute'],
.film__layer[data-layer='morning'] {
  transform-origin: 27.3% 77%;
  opacity: 0;
}

/* Numbered marks on the revealed pot */
.hotspots {
  position: absolute;
  inset: 0;
}

.hotspot {
  position: absolute;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  margin: -0.875rem 0 0 -0.875rem;
  border-radius: 50%;
  background: var(--sheet);
  color: var(--ink);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: 0 0 0 4px rgb(251 249 245 / 0.35), 0 4px 10px -4px rgb(60 40 20 / 0.5);
  opacity: 0;
  transform: scale(0.6);
}

.hotspot--plant { left: 46%; top: 30%; }
.hotspot--pot { left: 50%; top: 70%; }
.hotspot--dome { left: 82%; top: 44%; }

/* ---------- Copy beats ---------- */

.beats {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.beat {
  position: absolute;
  top: 50%;
  left: var(--gutter);
  /* The left fifth of every frame is faded darkness, so copy may run a little into it */
  width: min(36rem, calc(100vw - var(--film) * 0.82 - var(--gutter) * 2));
  translate: 0 -50%;
  opacity: 0;
  will-change: transform, opacity;
}

/* The opening and closing lines get a little more room: the film's left edge is dark there */
.beat--hero,
.beat--outro {
  width: min(40rem, calc(100vw - var(--film) * 0.7 - var(--gutter) * 2));
}

.beat .note {
  margin-bottom: 0.6rem;
}

.beat__step {
  margin-bottom: 0.9rem;
  color: var(--scene-fg-soft);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.beat__title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.018em;
  text-wrap: balance;
}

.beat--hero .beat__title {
  font-size: var(--text-hero);
  line-height: 1.02;
  letter-spacing: -0.022em;
}

.beat__text {
  max-width: 28rem;
  margin-top: 1.1rem;
  color: var(--scene-fg-soft);
  font-size: var(--text-lead);
  line-height: 1.55;
  text-wrap: pretty;
}

/* Legend for the marks on the pot */
.legend {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.25rem;
  counter-reset: legend;
}

.legend li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  color: var(--scene-fg-soft);
  counter-increment: legend;
}

.legend li::before {
  content: counter(legend);
  flex: none;
  display: grid;
  place-items: center;
  width: 1.4rem;
  height: 1.4rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: var(--text-xs);
  font-weight: 600;
}

/* Growth calendar */
.months {
  display: flex;
  gap: 1.1rem;
  margin-top: 1.25rem;
  font-size: var(--text-sm);
}

.months li {
  color: var(--scene-fg-soft);
  opacity: 0.4;
  transition: opacity var(--duration-normal);
}

.months li[data-on='true'] {
  opacity: 1;
}

.months li[data-on='true']:has(+ li[data-on='false']),
.months li[data-on='true']:last-child {
  color: var(--scene-fg);
  text-decoration: underline;
  text-decoration-color: var(--leaf);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35em;
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: max(1.5rem, env(safe-area-inset-bottom));
  left: 50%;
  z-index: 3;
  display: grid;
  justify-items: center;
  gap: 0.6rem;
  color: var(--scene-fg-soft);
  font-size: var(--text-sm);
  translate: -50% 0;
}

.scroll-cue::after {
  content: '';
  width: 1px;
  height: 2.5rem;
  background: linear-gradient(to bottom, var(--scene-fg-soft), transparent);
  transform-origin: top;
  animation: cue-line 2.2s var(--ease-soft) infinite;
}

@keyframes cue-line {
  0% { transform: scaleY(0); opacity: 1; }
  60% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

.skip-story {
  position: absolute;
  right: var(--gutter);
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  z-index: 5;
  color: var(--scene-fg-soft);
  font-size: var(--text-sm);
  transition:
    opacity var(--duration-normal),
    visibility 0s,
    color var(--duration-fast);
}

.skip-story:hover {
  color: var(--scene-fg);
}

/* ---------- Portrait & narrow screens: film on top, copy at the bottom ---------- */

@media (max-width: 899px), (max-aspect-ratio: 5/4) {
  .story__stage {
    --film: min(118vw, 60svh);
  }

  .film {
    top: calc(var(--header-h) - 0.5rem);
    right: auto;
    left: 50%;
    translate: -50% 0;
  }

  .story__stage::before {
    background: linear-gradient(
      to top,
      var(--scene) 0%,
      var(--scene) 24%,
      color-mix(in srgb, var(--scene) 70%, transparent) 36%,
      transparent 48%
    );
  }

  .beat {
    top: auto;
    right: var(--gutter);
    bottom: max(3.5rem, calc(env(safe-area-inset-bottom) + 3rem));
    width: auto;
    max-width: 36rem;
    translate: none;
  }

  .beat__title {
    font-size: clamp(1.875rem, 1.2rem + 4vw, 3rem);
  }

  .beat--hero .beat__title {
    font-size: clamp(2.375rem, 1.4rem + 5.4vw, 4rem);
  }

  .beat__text {
    margin-top: 0.8rem;
    font-size: 1rem;
  }


  .scroll-cue {
    display: none;
  }

  .skip-story {
    left: var(--gutter);
    right: auto;
    bottom: max(1rem, env(safe-area-inset-bottom));
    font-size: var(--text-xs);
  }
}

@media (max-width: 899px) and (max-height: 700px) {
  .story__stage {
    --film: min(100vw, 52svh);
  }

  .beat__text {
    display: none;
  }

  .beat--hero .beat__text {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue::after {
    animation: none;
  }
}

/* ---------- Static fallback (director failed to start); noscript.css mirrors it ---------- */

.story.is-static {
  height: auto;
}

.story.is-static .story__stage {
  position: relative;
  height: auto;
  overflow: visible;
  padding: calc(var(--header-h) + 2rem) var(--gutter) 4rem;
}

.story.is-static .story__stage::before,
.story.is-static .film__layer:not([data-layer='poster']),
.story.is-static .hotspots,
.story.is-static .scroll-cue,
.story.is-static .skip-story {
  display: none;
}

.story.is-static .film {
  --film: min(90vw, 70svh);
  position: relative;
  inset: auto;
  translate: none;
  margin: 0 auto 2.5rem;
}

.story.is-static .beats {
  position: static;
  display: grid;
  gap: 3.5rem;
  max-width: 40rem;
  margin: 0 auto;
}

.story.is-static .beat {
  position: static;
  width: auto;
  translate: none;
  opacity: 1;
}