:root {
  --bg: #0e0c0a;
  --bg2: #16120d;
}

* { box-sizing: border-box; cursor: none; } /* custom cursor everywhere, no native */

html, body {
  margin: 0;
  height: 100%;
  background: #000;
  color: #f3ecdd;
  font-family: "Playfair Display", serif;
  font-size: 16px;
  overflow: hidden;
  cursor: none; /* replaced by the custom dotted cursor */
}

/* Fixed viewport. No native scroll — the camera (#world) is the only motion. */
#scroller {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: #000;
}

/* Holds the falling field + the title. Fixed in place. */
#world {
  position: fixed;
  inset: 0;
}

/* The falling-item container. Each .fall is absolutely positioned inside and
   driven every frame by a JS-written transform (see landing.js). */
#canvas {
  position: absolute;
  inset: 0;
}


/* ── falling items ───────────────────────────────────────────────────────────
   Both artwork tiles (.fall--art) and star glyphs (.fall--star) fall with the
   same depth engine. Their base size is set from JS (px), position + depth-scale
   are written into `transform` per frame, and depth-of-field (blur/dim) is
   written into `filter` + `opacity`. transform-origin is the item's own center
   so depth-scale and the 2× hover pop both grow about the middle. */
.fall {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: center center;
  /* only transform changes per frame — promote just that (filter/opacity are set
     once per spawn). Keeping filter/opacity out of will-change avoids pinning a
     needlessly heavy layer for every one of the ~280 falling items. */
  will-change: transform;
  /* items are placed off-screen (via transform) before the field starts */
  opacity: 0;
}

/* artwork tile: a framed thumbnail, hover-interactive */
.fall--art {
  border-radius: calc(2px * var(--rs, 1));
  box-shadow: 0 4px 22px rgba(0, 0, 0, 0.55);
  background: #000;
  cursor: none;
  pointer-events: none; /* Hit-testing optimization: JS enables this only for nearest tiles */
}

/* GPU-accelerated darkness overlay (so image stays opaque and hides trails behind it) */
.fall--art::before {
  content: "";
  position: absolute;
  inset: 0;
  background: #000;
  opacity: var(--dark, 0);
  pointer-events: none;
  z-index: 5;
  border-radius: inherit;
  transition: opacity 0.4s ease;
}

.fall--art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

.fall--art img.high-res-img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 2;
}

.fall--art.hi-res-ready img.high-res-img {
  opacity: 1;
}

/* Subtle corner spinner shown while a focused tile's full-res image downloads.
   ::before/::after are taken (darkness overlay / marching ants), so it's a real
   child node (added lazily in focusItem). --rs scales it with the magnified tile. */
.fall--art .hi-res-spinner {
  position: absolute;
  top: calc(6px * var(--rs, 1));
  right: calc(6px * var(--rs, 1));
  width: calc(14px * var(--rs, 1));
  height: calc(14px * var(--rs, 1));
  border-radius: 50%;
  border: calc(2px * var(--rs, 1)) solid rgba(243, 236, 221, 0.35);
  border-top-color: rgba(243, 236, 221, 0.95);
  opacity: 0;
  /* delay so it only appears if the hi-res is actually slow (>~150ms) */
  transition: opacity 0.2s ease 0.15s;
  z-index: 4;
  pointer-events: none;
}

.fall--art.hi-res-loading .hi-res-spinner {
  opacity: 1;
  animation: hi-res-spin 0.8s linear infinite;
}

@keyframes hi-res-spin { to { transform: rotate(360deg); } }

/* Stars are no longer DOM nodes — they're drawn as canvas sprites (see paintStar
   in landing.js) to avoid ~160 compositor layers + per-frame transform strings. */

/* ── hover pop ───────────────────────────────────────────────────────────────
   Hovering an artwork freezes it (landing.js stops advancing its fall) and adds
   .magnify. The scale-up/relax is eased in JS (transform is written every frame,
   so it must NOT be a CSS transition or it would lag the fall); only filter,
   opacity and shadow — which JS writes just once — are transitioned here. */
.fall--art {
  transition: filter 0.4s ease, opacity 0.4s ease, box-shadow 0.35s ease;
}

.fall--art.magnify {
  z-index: 90000 !important;
  filter: none !important;
  opacity: 1 !important;
  box-shadow: 0 calc(12px * var(--rs, 1)) calc(44px * var(--rs, 1)) rgba(0, 0, 0, 0.7);
}

/* Clear the darkness overlay on hover */
.fall--art.magnify::before {
  opacity: 0 !important;
}

/* Rotating dashed border (marching ants) for hovered artwork */
@keyframes march {
  0% { background-position: 0px 0px, 0px 100%, 100% 0px, 0px 0px; }
  100% { background-position: 24px 0px, -24px 100%, 100% 24px, 0px -24px; }
}

.fall--art.hovering::after,
.fall--art.magnify::after {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: calc(-2px - var(--info-h, 0px));
  /* 4 linear gradients acting as the 4 borders */
  background-image: 
    linear-gradient(90deg, rgba(243, 236, 221, 0.9) 50%, transparent 50%),
    linear-gradient(90deg, rgba(243, 236, 221, 0.9) 50%, transparent 50%),
    linear-gradient(180deg, rgba(243, 236, 221, 0.9) 50%, transparent 50%),
    linear-gradient(180deg, rgba(243, 236, 221, 0.9) 50%, transparent 50%);
  background-repeat: repeat-x, repeat-x, repeat-y, repeat-y;
  /* 24px long dashes, 2px thick */
  background-size: 24px 2px, 24px 2px, 2px 24px, 2px 24px;
  animation: march 0.6s infinite linear;
  pointer-events: none;
  z-index: -1; /* Place it nicely behind/around */
  border-radius: 4px; /* Slightly round the corners */
}

/* ── artwork info card (shown on hover) ────────────────────────────────────── */
.fall-info {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: #0e0c0a;
  color: #f3ecdd;
  padding: calc(4px * var(--rs, 1));
  box-sizing: border-box;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateY(calc(-4px * var(--rs, 1)));
  border-radius: 0 0 calc(2px * var(--rs, 1)) calc(2px * var(--rs, 1));
  box-shadow: 0 calc(12px * var(--rs, 1)) calc(24px * var(--rs, 1)) rgba(0, 0, 0, 0.7);
  z-index: -2; /* drop from behind the image */
}

.fall--art.magnify .fall-info {
  opacity: 1;
  transform: translateY(0);
}

/* Magnified tiles are enlarged via real layout width/height (not transform:scale),
   so these absolute px metrics are multiplied by --rs (the tile's magnify factor,
   set per-tile in landing.js) to preserve the original proportions. --rs defaults
   to 1 for falling tiles, which don't show their caption anyway. */
.fall-info strong {
  display: block;
  font-family: "Playfair Display", serif;
  font-size: calc(8.5px * var(--rs, 1));
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: calc(1px * var(--rs, 1));
}

.fall-info span {
  display: block;
  font-family: "Playfair Display", serif;
  font-size: calc(6px * var(--rs, 1));
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
  line-height: 1.1;
}

/* ── title overlay ───────────────────────────────────────────────────────────
   "The Genesis Experience" — a fixed, centered overlay (no longer a mosaic
   cell). Sits at a mid z-index so near artworks fall in FRONT of it and far
   ones fall BEHIND it. pointer-events:none so it never blocks hovering a
   behind-title tile. */
#title {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 5000;            /* items with depth z >= TITLE_Z get a higher z-index */
  pointer-events: none;
  padding: 0 6vw;
}

#title span {
  display: block;
  max-width: 100%;
  font-family: "Playfair Display", serif;
  font-optical-sizing: auto;
  font-weight: 700;
  font-size: clamp(2rem, 7vw, 6rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.12;
  text-align: center;
  color: #f3ecdd;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.7);
  white-space: normal;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── custom cursor: a dotted circle that slowly rotates ── */
#cursor {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 30000;
  opacity: 0;
  transition: opacity 0.18s ease;
  will-change: transform;
}

#cursor.ready { opacity: 1; }

#cursor span {
  display: block;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px; /* center on the pointer */
  border: 3px dashed rgba(240, 232, 214, 0.9);
  border-radius: 50%;
  animation: spin 2s linear infinite;
}

/* near the scroll cue, artwork focus is disabled — the cursor halts its spin to
   signal that clicking here won't magnify a tile (see landing.js). */
#cursor.no-spin span { animation-play-state: paused; }

@media (prefers-reduced-motion: reduce) {
  #cursor span { animation: none; }
}

/* ── background dimmer when an artwork is focused ── */
#dimmer {
  position: absolute;
  inset: 0;
  background: #000;
  opacity: 0;
  pointer-events: none;
  z-index: 80000; /* above all falling items except the magnified one (90000) */
  transition: opacity 0.4s ease;
}

#dimmer.active {
  opacity: 0.45; /* darkens the background and other artworks heavily */
}

/* ── page-to-page transition ─────────────────────────────────────────────────
   Page 1 is the whole falling field + title + scroll cue (all inside #world).
   Advancing adds .to-page2 to <body>: #world lifts up and fades while #page2
   rises from below — both moving up in screen space, so it reads as the camera
   descending to the next page. The RAF fall loop is paused once #world is gone
   (see landing.js) so we don't animate an invisible field. */
#world {
  /* removed transform transition so JS can handle parallax sweep */
}

body.to-page2 #title, body.to-page2 #scroll-cue-1 {
  transform: translateY(-100dvh);
  opacity: 0;
}

#title {
  transition: transform 0.7s ease-in-out, opacity 0.7s ease-in-out;
}

/* the empty second page: a full-screen dark surface parked just below the
   viewport, sliding up into place on transition. */
#page2 {
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 20000; /* above field/title (5000), below the cursor (30000) */
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-sizing: border-box;
}

body.to-page2:not(.to-page3) #page2 {
  pointer-events: auto;
}

.page2-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  width: 100%;
  height: 100%;
  gap: 0;
  min-width: 0; /* as a flex child of #page2, don't let content min-width overflow the viewport */
}

.page2-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  will-change: transform, opacity;
  /* Quick exit without delay when leaving page 2 */
  transition: transform 0.8s ease-in-out, opacity 0.5s ease-in-out;
}

/* Initial positions (out of view) */
.page2-col:nth-child(1) { transform: translateY(100dvh); }
.page2-col:nth-child(2) { transform: translateY(-100dvh); }
.page2-col:nth-child(3) { transform: translateY(100dvh); }

/* Active state */
body.to-page2 .page2-col {
  transform: translateY(0);
  opacity: 1;
  /* Enters right when the previous screen is about to disappear (0.35s delay) */
  transition: transform 1.8s cubic-bezier(0.16, 1, 0.3, 1) 0.35s, opacity 1.2s ease-in-out 0.35s;
}

body.no-field .page2-col {
  transition: none !important;
}

/* Arriving on page 2 with no journey: the reader's "← Library" (the #library hash,
   handled in landing.js). Same end state as advancing normally, minus its
   introduction — the class is on <body> for exactly one frame, so everything here
   animates as usual for the rest of the visit. Named per element rather than as a
   blanket `*`: the tiles behind #page2 keep their own hover and focus transitions,
   and the reader can walk back into the field. */
body.no-anim #title,
body.no-anim #scroll-cue-1,
body.no-anim #cursor,
body.no-anim .page2-col,
body.no-anim .lo-credits {
  transition: none !important;
}

.artworks-col {
  height: 100%;
  min-width: 0;
  min-height: 0;
}

.artwork-cell {
  flex: 1;
  min-width: 0; /* let cells shrink to share the row instead of overflowing (flex min-width:auto blowout) */
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 3.5vmin;
  position: relative;
}

/* Positioning context + reserved space for the scattered images, so the label
   below sits in normal flow and the [images + label] group centers as a unit. */
.artwork-cell__stage {
  position: relative;
  /* smaller inner cell, centered by the cell's flex centering, with margin around it */
  width: 82%;
  height: 82%;
  flex-shrink: 0;
  transform-style: preserve-3d; /* pass the cell's orbit.js perspective through to the images */
}

.artwork-ph {
  display: block;
  width: 24vmin;
  height: auto;         /* true aspect, no crop; clusters vary in height (painterly) */
  aspect-ratio: auto;
  flex-shrink: 0;
  object-fit: contain;
  border: 1px solid rgba(61, 54, 44, 0.9);
  border-radius: 4px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45); /* light: orbit.js animates a per-depth shadow on top */
  transition: border-color 0.3s ease;
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: #1a1713; /* fills any transparent PNG edge behind the art */
}

/* Fix cursor disappearing on page 2 due to cue pointerleave bug */
body.to-page2 #cursor.ready {
  opacity: 1 !important;
}

/* Size + placement of the .artwork-ph images is computed in orbit.js from the
   box geometry (so they stay contained and as large as the box allows), and the
   transform is driven every frame. No CSS scatter/z-index here. */

.artwork-cell__label {
  /* sits in the margin band between the inner stage box and the outer cell edge */
  position: absolute;
  left: 50%;
  bottom: 6.5%;              /* hugs the inner box, leaving more space toward the outer edge */
  transform: translate(-50%, 50%);
  max-width: none;
  white-space: nowrap;      /* keep each label on a single line */
  text-align: center;
  font-family: "Playfair Display", serif;
  font-size: clamp(1.2rem, 1.8vw, 1.6rem);
  font-weight: 400;
  color: rgba(243, 236, 221, 0.9);
  letter-spacing: 0.02em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
  pointer-events: none;
}

/* Artist of the front-most painting in the stack. It is anchored at the stage
   center; orbit.js drives the transform every frame so it rides the bottom edge of
   whichever painting is on top (barely touching it), fading between artists as the
   depth cycles. NOTE: the transform is owned by JS — do not set one here. */
.artwork-cell__artist {
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: 0.35em;          /* the hair of gap so it barely kisses the edge */
  white-space: nowrap;
  text-align: center;
  font-family: "Playfair Display", serif;
  font-style: italic;
  font-size: clamp(0.55rem, 0.7vw, 0.75rem);
  color: rgba(243, 236, 221, 0.85);
  letter-spacing: 0.03em;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 2;
}

/* Landscape/desktop: cells stack vertically, so the lower cell of each column
   would have its label jammed against the screen edge — put it in the TOP margin. */
@media (orientation: landscape) {
  .artworks-col .artwork-cell:first-child .artwork-cell__label {
    transform: translate(-50%, calc(50% - 3.5vh));
  }
  
  .artworks-col .artwork-cell:last-child .artwork-cell__label {
    top: 6.5%;
    bottom: auto;
    transform: translate(-50%, calc(-50% + 3.5vh));
  }

  /* Shift each inner box toward its outer screen edge: smaller outward margin
     (top/bottom edge), larger inward margin (toward the center text row).
     vh, not %, because percentage margins resolve against width, not height. */
  .artworks-col .artwork-cell:first-child .artwork-cell__stage {
    transform: translateY(-3.5vh);   /* upper cell moves toward the top edge */
  }
  .artworks-col .artwork-cell:last-child .artwork-cell__stage {
    transform: translateY(3.5vh);    /* lower cell moves toward the bottom edge */
  }
}

.artwork-ph:hover {
  border-color: #a6987a;
}

.text-col {
  text-align: center;
  padding: 0 2vw;
}

.text-col h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 700;
  margin: 0 0 1.5rem 0;
  color: #f3ecdd;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.text-col p {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.6;
  color: rgba(243, 236, 221, 0.85);
  margin: 0;
  text-align: justify;
  text-align-last: center;
}

/* Inline call-to-action that sits at the end of the paragraph line. */
.reader-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  margin-left: 0.5em;
  margin-top: 0.25em;
  padding: 0.12em 0.7em 0.16em;
  font-family: "Playfair Display", serif;
  font-size: 0.82em;                 /* a touch smaller than the running text */
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: baseline;
  color: #f3ecdd;
  border: 1px solid rgba(166, 152, 122, 0.7);
  border-radius: 2px;
  background: rgba(166, 152, 122, 0.06);
  transition: background-color 0.35s ease, border-color 0.35s ease, color 0.35s ease;
}

.reader-cta__chev {
  display: inline-flex;
  align-items: center;
  transition: transform 0.35s ease;
}

.reader-cta__chev svg {
  display: block;
  width: 0.5em;
  height: 0.7em;
  overflow: visible;
}

.reader-cta__chev svg:nth-child(2) {
  margin-left: -0.28em;              /* overlap the two into a tight >> */
}

.reader-cta__chev path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.reader-cta:hover {
  background: rgba(166, 152, 122, 0.18);
  border-color: #a6987a;
  color: #fff;
}

.reader-cta:hover .reader-cta__chev {
  transform: translateX(0.15em);
}

/* Single-column stacked layout is for portrait phones/tablets only. Landscape
   tablets (e.g. iPad 1024×768) are wide-but-short: stacking 3 rows there
   cramps them and the tall image cluster overruns its row, so they fall through
   to the 3-column layout above, which fits fine down to ~700px tall. */
@media (max-width: 1024px) and (orientation: portrait) {
  #page2 {
    align-items: flex-start;
    overflow-y: hidden;
    overflow-x: hidden;
    padding: 0;
  }

  .page2-grid {
    grid-template-columns: minmax(0, 1fr);
    /* middle (text) row = 1/4 of height; two artwork rows share the rest (3/8 each) */
    grid-template-rows: 1.5fr 1fr 1.5fr;
    height: 100%;
    width: 100%;
    gap: 0;
  }

  /* Horizontal slide for mobile rows */
  .page2-col:nth-child(1) { transform: translateX(-100dvw); }
  .page2-col:nth-child(2) { transform: translateX(100dvw); }
  .page2-col:nth-child(3) { transform: translateX(-100dvw); }

  body.to-page2 .page2-col {
    transform: translateX(0);
  }

  .artworks-col {
    flex-direction: row;
    align-items: stretch;   /* cells fill the full row height */
    height: 100%;
    gap: 0;                 /* clean 50/50 split, no center gap */
  }

  .artwork-cell {
    flex: 1 1 0;            /* two equal halves */
    min-width: 0;
    height: 100%;          /* fill the row height */
  }

  .text-col {
    padding: 0 6vw;        /* text keeps side margins; artwork cells stay full-bleed */
  }

  .artwork-ph {
    display: block;
    width: 56%; /* fills the cell to a small padding; cluster is 1.4× this wide */
    max-width: 22vh;
    max-height: 30vh; /* override the vmin cap so portrait art isn't over-cropped */
    aspect-ratio: auto;
    height: auto;
  }

  .artwork-cell__label {
    line-height: 1.25;
    font-size: clamp(1rem, 3.2vw, 1.4rem);
  }

  .text-col h2 {
    font-size: clamp(1.4rem, 6vw, 2.2rem);
    margin: 0 0 1rem 0;
  }

  .text-col p {
    font-size: clamp(0.95rem, 3.5vw, 1.15rem);
  }

  /* bottom row: labels sit in the TOP margin band instead of the bottom */
  .page2-col:nth-child(3) .artwork-cell__label {
    top: 6.5%;
    bottom: auto;
    transform: translate(-50%, -50%);
  }
}

/* ── scroll / continue indicator ──────────────────────────────────────────────
   A downward-flowing stream of chevrons: each fades in at the top, travels down
   through the two slots, then shoots out the bottom fading away. Three chevrons
   run the SAME animation offset by a third of the cycle, so at any moment the
   bottom one is leaving while the next takes its place and a fresh one enters up
   top. Lives inside #world, so it lifts and fades with everything during the
   page transition. */
.scroll-cue {
  position: absolute;
  bottom: 1.5vh;
  left: 50%;
  transform: translateX(-50%) scale(0.7);
  width: 66px;
  height: 75px;
  padding: 0;
  margin: 0;
  border: 0;
  background: none;
  cursor: none; /* keep the custom dotted cursor */
  pointer-events: auto;
  z-index: 6000; /* above the falling field & title within #world */
  opacity: 1;
  transition: transform 0.7s ease-in-out, opacity 0.7s ease-in-out;
}

body.to-page2 #scroll-cue-1 {
  opacity: 0;
  pointer-events: none;
}

/* each chevron is an SVG "v" so its stroke can be solid while flowing and switch
   to marching dashes on hover. Absolutely stacked; the flow is pure transform. */
.scroll-cue .chev {
  position: absolute;
  left: 0;
  right: 0;
  top: 9px;
  margin: 0 auto;
  width: 42px;
  height: 27px;
  opacity: 0;
  animation: chev-flow 3.6s linear infinite;
}

.scroll-cue .chev svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.scroll-cue .chev path {
  fill: none;
  stroke: rgba(243, 236, 221, 0.95);
  stroke-width: 3.5;
  stroke-linecap: butt;
  stroke-linejoin: miter;
}

/* stagger the stream by a third of the cycle each. NEGATIVE delays start each
   chevron already advanced into the cycle, so the field is full from the first
   frame (no ramp-up) and the flow can be paused/resumed seamlessly. */
.scroll-cue .chev:nth-child(2) { animation-delay: -1.2s; }
.scroll-cue .chev:nth-child(3) { animation-delay: -2.4s; }

/* one chevron's life: hold briefly at the top (a small delay), fade in while
   sliding into the top slot, ride down to the bottom slot, then shoot out the
   bottom fading. ~11px between the two slots reads as a tight double chevron. */
@keyframes chev-flow {
  0%   { opacity: 0; transform: translateY(-12px); }
  33%  { opacity: 0; transform: translateY(-12px); }  /* hold invisibly at the top — the delay */
  45%  { opacity: 1; }                                /* faded in, already mid-glide (no stall) */
  90%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(24px); }   /* ONE continuous linear glide down + fade out */
}

/* cursor in the disabled zone (near the cue) OR hovering it: FREEZE the flow
   where it is — paused, NOT removed, so leaving the zone resumes the very same
   chevrons seamlessly instead of restarting them (which would blink them away).
   The steady flow always keeps ≥2 chevrons on screen, so the frozen frame reads
   as a static arrow stack. */
.scroll-cue.cue-frozen .chev,
.scroll-cue.cue-hot .chev {
  animation-play-state: paused;
}

/* hovering directly: the frozen chevrons simply grow, and the custom cursor is
   hidden (JS), so the cue itself becomes the pointer. */
.scroll-cue.cue-hot {
  transform: translateX(-50%) scale(0.85);
}

@media (prefers-reduced-motion: reduce) {
  /* static double chevron, no flow or march */
  .scroll-cue .chev { animation: none; opacity: 0.85; }
  .scroll-cue .chev:nth-child(1) { transform: translateY(-6px); }
  .scroll-cue .chev:nth-child(2) { transform: translateY(13.5px); }
  .scroll-cue .chev:nth-child(3) { opacity: 0; }
}

/* ── page 3 ────────────────────────────────────────────────────────────────── */
#page3 {
  --p3-bg: #000;
  position: fixed;
  inset: 0;
  background: var(--p3-bg);
  z-index: 15000; /* below page 2 */
  pointer-events: none;
  box-sizing: border-box;
  color: #f3ecdd;
  overflow: hidden;                 /* clip any stray overflow (esp. the tree card) */
  opacity: 0;                       /* hidden until active — don't cover pages 1/2 */
  visibility: hidden;
  transition: opacity 0.4s ease-in-out, visibility 0s linear 0.4s;
}

body.to-page3 #page3 {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.4s ease-in-out, visibility 0s;
}

/* Layout: card 1 top-left, text top-right, tree across the bottom */
.p3-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: minmax(0, 0.9fr) minmax(0, 1.35fr);
  gap: clamp(1.4rem, 3vw, 3rem);
  /* vertical padding only */
  padding: clamp(1.6rem, 4vh, 3.4rem) 0;
  box-sizing: border-box;
}

.p3-card1 { grid-column: 1; grid-row: 1; }
.p3-text  { grid-column: 2; grid-row: 1; }
.p3-card2 { grid-column: 1 / -1; grid-row: 2; }

/* ── card 1: artwork + scripture, left edge dissolving into the page ── */
.p3-card1 {
  position: relative;
  margin: 4rem 0 0 0;
  transform-origin: top left;
  z-index: 10;
  min-height: 0;
  height: 100%;
  aspect-ratio: 822 / 1134;   /* match card1.png so the full composition shows */
  max-width: 100%;
  justify-self: start;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
  pointer-events: none; /* Prevents scaled card from blocking the tree below it */
  container-type: size; /* Enables tracking object-fit: cover crop */
}
.p3-card1 img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
/* dark gradient in from the left so the card blends into the background */
.p3-card1::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg,
      var(--p3-bg) 0%,
      rgba(11, 9, 8, 0.75) 16%,
      rgba(11, 9, 8, 0) 42%);
  z-index: 1;
}
/* anchor for the arrow's origin — sits on the little tree icon baked into card1.png */
.p3-arrow-source {
  position: absolute;
  left: calc(50cqw + 0.2293 * max(100cqw, 72.4868cqh) - 5px);
  top: calc(50cqh - 0.0736 * max(100cqh, 137.9562cqw) - 5px);
  width: 10px;
  height: 10px;
  z-index: 2;
}
.p3-card1-tree-btn {
  position: absolute;
  /* Track the baked-in icon exactly through object-fit: cover cropping */
  left: calc(50cqw + 0.2293 * max(100cqw, 72.4868cqh) - 0.575rem);
  top: calc(50cqh - 0.0736 * max(100cqh, 137.9562cqw) - 0.575rem);
  width: 1.15rem;
  height: 1.15rem;
  z-index: 3;
  background: #000; /* hide the baked-in icon */
  color: #45a366; /* var(--soy-green) */
  opacity: 1; /* keep solid so black background hides the image beneath */
  border: none;
  border-radius: 50%;
  box-shadow: none;
  padding: 0;
  display: block; /* Removed flex to avoid Safari SVG flexbugs */
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1), opacity 0.15s;
  pointer-events: auto;
}
.p3-card1-tree-btn:hover {
  transform: scale(1.15);
  opacity: 1;
}
.p3-card1-tree-btn svg {
  width: 100%;
  height: 100%;
  display: block;
  flex-shrink: 0; /* extra safety for Safari */
}

/* ── right-hand text block: horizontally centered in the right column ── */
.p3-text {
  align-self: start;
  justify-self: center;
  margin-top: auto;
  margin-bottom: auto;
  padding: 1rem clamp(1.5rem, 3.5vw, 3.5rem) 1rem 0;
  min-height: 0;
}
.p3-text h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.2rem, 3.4vw, 3.4rem);
  white-space: nowrap;
  font-weight: 700;
  margin: 0 0 1.1rem 0;
  color: #f3ecdd;
  letter-spacing: 0.01em;
  line-height: 1.05;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}
.p3-text p {
  font-family: "Playfair Display", serif;
  font-size: clamp(1rem, 1.35vw, 1.28rem);
  line-height: 1.65;
  color: rgba(243, 236, 221, 0.82);
  margin: 0;
  max-width: 34ch;
  text-align: justify;
  text-align-last: center;
}

/* ── card 2: the embedded genealogy tree ── */
.p3-card2 {
  position: relative;
  min-height: 0;
  margin: 0 clamp(1.4rem, 3.5vw, 3.4rem);   /* inset from the edges (card 1/text hug them) */
  border: none;
  border-radius: 6px;
  overflow: hidden;
  background: #000;
  /* palette for the ported tree (soy-agaci uses these vars + currentColor) */
  --surface: #000;
  --surface-border: rgba(166, 152, 122, 0.28);
  color: #e9e0cf;
}
.p3-card2 .tree-scroll {
  position: absolute;
  inset: 0;
  overflow: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.p3-card2 .tree-scroll::-webkit-scrollbar {
  display: none;
}
.p3-card2 .tree-sizer {
  position: relative;
  width: 1820px;
  height: 1950px;
}
@media (min-width: 1100px) {
  .p3-card2 .tree-sizer {
    margin: 0 auto;
  }
}
.p3-card2 .tree-canvas { position: relative; width: 1820px; height: 1950px; transform-origin: 0 0; }
.p3-card2 .tree-svg    { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }

.p3-card2 .tn { position: absolute; transform: translate(-50%, -50%); cursor: pointer; z-index: 2; }
.p3-card2 .tn-pill {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.51rem 1.08rem;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  border-radius: 999px;
  font-size: 1.5rem; letter-spacing: 0.04em; white-space: nowrap;
  color: inherit; opacity: 0.9;
  transition: border-color 0.15s, opacity 0.15s, transform 0.15s, box-shadow 0.15s;
}
.p3-card2 .tn-dot {
  width: 15px; height: 15px; border-radius: 50%; flex-shrink: 0;
  background: color-mix(in srgb, currentColor 35%, transparent);
}
.p3-card2 .tn:hover .tn-pill,
.p3-card2 .tn.active .tn-pill {
  opacity: 1; transform: scale(1.05);
  border-color: color-mix(in srgb, currentColor 45%, transparent);
}
.p3-card2 .tn[data-b="root"] .tn-pill { font-size: 1.65rem; font-weight: 600; }
.p3-card2 .tn[data-b="kayin"] .tn-dot { background: #a83b3b; }
.p3-card2 .tn[data-b="habil"] .tn-dot { background: #4f7a4f; }
.p3-card2 .tn[data-b="habil"] .tn-pill { opacity: 0.6; }
.p3-card2 .tn[data-id="hanok"] .tn-dot { background: #4aafaf; }
.p3-card2 .tn[data-id="ibram"] .tn-dot,
.p3-card2 .tn[data-id="ismail"] .tn-dot { background: #c79a36; }
.p3-card2 .tn[data-id="nuh"] .tn-pill,
.p3-card2 .tn[data-id="ibram"] .tn-pill,
.p3-card2 .tn[data-id="ishak"] .tn-pill,
.p3-card2 .tn[data-id="betuel"] .tn-pill,
.p3-card2 .tn[data-id="yakup"] .tn-pill { font-weight: 600; }
.p3-card2 .tn[data-id="ibram"]:hover .tn-pill,
.p3-card2 .tn[data-id="ibram"].active .tn-pill { border-color: #c79a36; box-shadow: 0 0 16px rgba(180,140,50,0.35); }
/* Terah — arrow target: a steady gold glow so it reads as the head node */
.p3-card2 .tn[data-id="tera"] .tn-pill {
  font-weight: 600;
  border-color: #c79a36;
  opacity: 1;
  box-shadow: 0 0 18px rgba(199, 154, 54, 0.35);
}
.p3-card2 .tn[data-id="tera"] .tn-dot { background: #c79a36; }
.p3-card2 .tn--focus .tn-pill {
  border-color: #c79a36; font-weight: 600; opacity: 1;
  box-shadow: 0 0 16px rgba(199,154,54,0.4);
}
.p3-card2 .tn--focus .tn-dot { background: #c79a36; }
.p3-card2 .tn-toggle .tn-pill {
  border-style: dashed; opacity: 0.62;
  font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.p3-card2 .tn-toggle:hover .tn-pill { opacity: 0.95; }

/* zoom controls, docked to the card */
.p3-card2 .tree-zoom {
  position: absolute;
  right: 0.9rem;
  bottom: 0.9rem;
  z-index: 5;
  display: none;
  flex-direction: column;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: 0 3px 14px rgba(0,0,0,0.4);
}
.p3-card2 .tree-zoom button {
  width: 2.3rem; height: 2.3rem;
  border: none; border-bottom: 1px solid var(--surface-border);
  background: var(--surface); color: inherit;
  font-size: 1.1rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.12s;
}
.p3-card2 .tree-zoom button:last-child { border-bottom: none; }
.p3-card2 .tree-zoom button:hover { background: color-mix(in srgb, currentColor 14%, var(--surface)); }

/* ── entrance: card1 from left, text from right, card2 from bottom (together) ── */
.p3-card1, .p3-text, .p3-card2 {
  min-width: 0;
  min-height: 0;
  opacity: 0;
  will-change: transform, opacity;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.35s,
              opacity 0.9s ease-in-out 0.35s;
}
.p3-card1 { transform: translate(-120%, clamp(0rem, 20.457rem - 52.28vw, 10rem)); }
.p3-text  { transform: translateX(120%); }
.p3-card2 { transform: translateY(120%); }
body.to-page3 .p3-card1 {
  transform: translateY(clamp(0rem, 20.457rem - 52.28vw, 10rem));
  opacity: 1;
}

@media (min-width: 1100px) {
  /* Fluidly scale card1 up to 2x on large desktop screens, settling back to 1x at 1100px */
  .p3-card1 { 
    transform: translate(-120%, clamp(0rem, 20.457rem - 52.28vw, 10rem)) scale(var(--card1-scale, 1)); 
  }
  body.to-page3 .p3-card1 {
    transform: translateY(clamp(0rem, 20.457rem - 52.28vw, 10rem)) scale(var(--card1-scale, 1));
  }
  
  /* Align text block near the top to balance the larger card1 */
  .p3-text {
    margin-top: 3rem;
    margin-left: 1rem;
  }
}
body.to-page3 .p3-text {
  transform: none;
  opacity: 1;
}
body.to-page3 .p3-card2 {
  transform: translateY(clamp(0rem, 18.457rem - 52.28vw, 8rem));
  opacity: 1;
}

/* ── the arrow: icon in card1 → Terah in card2 ── */
.p3-arrow {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 40;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.p3-arrow--on { opacity: 1; }
.p3-arrow__line, .p3-arrow__head {
  stroke: #c79a36;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(199, 154, 54, 0.45));
}
/* draw-in: the line reveals itself, then the head fades in */
.p3-arrow__head { opacity: 0; transition: opacity 0.25s ease; }
.p3-arrow--head .p3-arrow__head { opacity: 1; }

/* ── person modal (ported) ── */
.p3-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  z-index: 22000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.p3-modal-overlay.show { opacity: 1; pointer-events: auto; }
.p3-modal-card {
  position: relative;
  display: flex;
  width: min(680px, 92vw);
  max-height: 90vh;
  background: #0a0a0a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  overflow: hidden;
  color: #f3ecdd;
}
.p3-modal-portrait { width: 240px; flex-shrink: 0; overflow: hidden; background: #0e0c0a; }
.p3-modal-portrait img { width: 100%; height: 100%; object-fit: cover; display: block; }
.p3-modal-body {
  flex: 1;
  padding: 2rem 1.8rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
}
.p3-modal-name {
  font-family: "Playfair Display", serif;
  font-size: 2.2rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin-bottom: 0.15rem;
}
.p3-modal-sub {
  font-family: "Playfair Display", serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.5;
}
.p3-modal-text {
  font-family: "Playfair Display", serif;
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0.85;
  margin-top: 0.8rem;
}
.p3-modal-close {
  position: absolute; top: 0.8rem; right: 1rem;
  background: none; border: none; color: inherit;
  opacity: 0.45; font-size: 1.2rem; line-height: 1; cursor: pointer;
  transition: opacity 0.15s;
}
.p3-modal-close:hover { opacity: 0.9; }
@media (max-width: 560px) {
  .p3-modal-card { flex-direction: column; }
  .p3-modal-portrait { width: 100%; height: 200px; }
}



@media (prefers-reduced-motion: reduce) {
  .p3-card1, .p3-text, .p3-card2 {
    transition: opacity 0.3s ease;
    transform: none;
  }
  .p3-arrow { transition: none; }
}

/* Page 2 exits by continuing its entrance movement to reveal Page 3 */
body.to-page3 .page2-col {
  transition: transform 0.8s ease-in-out, opacity 0.5s ease-in-out;
}

body.to-page3 .page2-col:nth-child(1) { transform: translateY(-100vh); opacity: 0; }
body.to-page3 .page2-col:nth-child(2) { transform: translateY(100vh); opacity: 0; }
body.to-page3 .page2-col:nth-child(3) { transform: translateY(-100vh); opacity: 0; }

@media (max-width: 1024px) and (orientation: portrait) {
  body.to-page3 .page2-col:nth-child(1) { transform: translateX(100vw); opacity: 0; }
  body.to-page3 .page2-col:nth-child(2) { transform: translateX(-100vw); opacity: 0; }
  body.to-page3 .page2-col:nth-child(3) { transform: translateX(100vw); opacity: 0; }
  .p3-card2 .tree-scroll { overflow: hidden; }
}

/* Page 2 scroll cue behavior */
#scroll-cue-2 {
  z-index: 21000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease-in-out 0s, transform 0.7s ease-in-out 0s;
}

body.to-page2:not(.to-page3) #scroll-cue-2 {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.7s ease-in-out 1.2s, transform 0.7s ease-in-out 0s; /* delay only opacity */
}

body.to-page3 #scroll-cue-2 {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(40px) scale(0.7);
  transition: opacity 0.5s ease-in, transform 0.5s ease-in;
}

/* Tree Expansion Animation */
.tree-canvas .tn {
  opacity: 0; 
  transform: translate(-50%, -50%);
}
.tree-canvas svg path,
.tree-canvas svg line,
.tree-canvas svg polygon {
  opacity: 0;
}

.tree-canvas.tree-revealing .tn {
  animation: treeNodeReveal 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
  animation-delay: var(--delay, 0ms);
}

.tree-canvas.tree-revealing svg path,
.tree-canvas.tree-revealing svg line,
.tree-canvas.tree-revealing svg polygon {
  animation: treeEdgeReveal 0.5s ease-out both;
  animation-delay: var(--delay, 0ms);
}

@keyframes treeNodeReveal {
  0% { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

@keyframes treeEdgeReveal {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@media (max-width: 400px), (max-height: 700px) {
  .p3-card2 .tree-sizer,
  .p3-card2 .tree-canvas {
    width: 1400px;
    height: 1500px;
  }
  .p3-card2 .tn-pill {
    font-size: 1rem;
    padding: 0.34rem 0.72rem;
    gap: 0.4rem;
  }
  .p3-card2 .tn[data-b="root"] .tn-pill {
    font-size: 1.08rem;
  }
  .p3-card2 .tn-dot {
    width: 11px;
    height: 11px;
  }
}

@keyframes subtleBlink {
  0%, 40%, 100% { transform: scale(1); }
  10%, 30% { transform: scale(1.18); }
  20% { transform: scale(1); }
}
.blink-anim {
  animation: subtleBlink 5s cubic-bezier(0.2, 0, 0, 1) infinite !important;
}

/* ── page 4 transition (exit of page 3) ── */

body.to-page2 #scroll-cue-1 {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(40px) scale(0.7);
  transition: opacity 0.5s ease-in, transform 0.5s ease-in;
}

body.to-page4 #scroll-cue-3 {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(40px) scale(0.7);
  transition: opacity 0.5s ease-in, transform 0.5s ease-in;
}

body.to-page4 .p3-card1,
body.to-page4 .p3-text,
body.to-page4 .p3-card2 {
  transform: translateY(-50px) scale(0.98);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease-in-out;
}

.tree-canvas.tree-unrevealing .tn {
  animation: treeNodeUnreveal 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}
.tree-canvas.tree-unrevealing svg path,
.tree-canvas.tree-unrevealing svg line,
.tree-canvas.tree-unrevealing svg polygon {
  animation: treeEdgeUnreveal 0.3s ease-in both;
}

@keyframes treeNodeUnreveal {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
}
@keyframes treeEdgeUnreveal {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

/* Page 3 scroll cue behavior */
#scroll-cue-3 {
  z-index: 22000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease-in-out 0s, transform 0.7s ease-in-out 0s;
}

body.to-page3:not(.to-page4) #scroll-cue-3 {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.4s ease-in-out 0.8s, transform 0.7s ease-in-out 0s;
}

/* ── page 4: ancient-context / info-box showcase ──────────────────────────── */
/* Sits ABOVE page 3 (whose bg is opaque black) and fades in when active. */
#page4 {
  position: fixed;
  inset: 0;
  background: #000;
  color: #f3ecdd;
  z-index: 16000;
  overflow: hidden;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s ease-in-out, visibility 0s linear 0.4s;
}
body.to-page4 #page4 {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.4s ease-in-out, visibility 0s;
}

/* Left 2/3 = three 1/3-height rows (b | text | c); right 1/3 = asyr image */
.p4-grid {
  position: absolute;
  inset: 0;
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-columns: 0.6fr 1fr 1fr 0.6fr;
  grid-template-rows: 2fr 3fr;
  gap: clamp(0.5rem, 1.2vw, 1rem);
  padding: 0 clamp(1rem, 2.5vw, 2.4rem);
  box-sizing: border-box;
}

.p4-asyr-left { grid-column: 1; grid-row: 1 / -1; display: flex; }
.p4-text { grid-column: 2 / 4; grid-row: 1; }
.p4-b    { grid-column: 2; grid-row: 2; }
.p4-c    { grid-column: 3; grid-row: 2; }
.p4-asyr { grid-column: 4; grid-row: 1 / -1; display: flex; }

/* rows b and c: single screenshot segment */
.p4-b,
.p4-c {
  display: flex;
  align-items: flex-start;
  min-height: 0;
  min-width: 0;
}
.p4-b { justify-content: flex-end; padding: 0 0 0 1.5rem; }
.p4-c { justify-content: flex-start; padding: 0 1.5rem 0 0; }

.p4-shot {
  position: relative;
  margin: 0;
  min-height: 0;
  min-width: 0;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.p4-shot img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}


/* middle text card, centered in the left column */
.p4-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  padding: 0 clamp(1rem, 3vw, 3rem) 0.5rem clamp(1rem, 3vw, 3rem);
  min-height: 0;
}
.p4-text h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.4rem, 3vw, 3rem);
  font-weight: 700;
  margin: 0 0 1rem 0;
  color: #f3ecdd;
  letter-spacing: 0.01em;
  line-height: 1.05;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}
.p4-text p {
  font-family: "Playfair Display", serif;
  font-size: clamp(1rem, 1.25vw, 1.22rem);
  line-height: 1.65;
  color: rgba(243, 236, 221, 0.82);
  margin: 0;
  max-width: 46ch;
  text-align: justify;
  text-align-last: center;
}

/* side columns: asyr relief flanks, vertically centered */
.p4-asyr, .p4-asyr-left {
  margin: 0;
  min-height: 0;
  min-width: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.p4-asyr {
  justify-content: flex-start;
  -webkit-mask-image: linear-gradient(to right, black 85%, transparent 100%);
  mask-image: linear-gradient(to right, black 85%, transparent 100%);
}

.p4-asyr-left {
  justify-content: flex-end;
  -webkit-mask-image: linear-gradient(to left, black 85%, transparent 100%);
  mask-image: linear-gradient(to left, black 85%, transparent 100%);
}

.p4-asyr img, .p4-asyr-left img {
  display: block;
  height: 60%;
  width: 100%;
  object-fit: cover;
}

.p4-asyr img {
  object-position: left center;
}

.p4-asyr-left img {
  object-position: left center;
  transform: scaleX(-1);
}

/* entrance: settle the four blocks in once page 4 is active */
.p4-b,
.p4-text,
.p4-c {
  opacity: 0;
  transform: translateY(100px);
  transition: opacity 1.5s ease-out, transform 1.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.p4-asyr,
.p4-asyr-left {
  opacity: 0;
  transition: opacity 1.5s ease-out, transform 1.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.p4-asyr-left { transform: translateX(-80px); }
.p4-asyr { transform: translateX(80px); }
body.to-page4 .p4-b    { opacity: 1; transform: none; transition-delay: 0.15s; }
body.to-page4 .p4-text { opacity: 1; transform: none; transition-delay: 0.35s; }
body.to-page4 .p4-c    { opacity: 1; transform: none; transition-delay: 0.55s; }
body.to-page4 .p4-asyr { opacity: 1; transform: none; transition-delay: 0.25s; }
body.to-page4 .p4-asyr-left { opacity: 1; transform: none; transition-delay: 0.25s; }

.ib-card {
  background: var(--surface);
  max-width: 560px; width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 2rem 1.25rem; position: relative;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.ib-card__head {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.6rem;
  margin-bottom: 1.2rem; padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--surface-border);
}
.ib-card__head-icon { font-size: 2rem; line-height: 1; }
.ib-card__head h3 { margin: 0; font-size: 0.95rem; font-weight: 600; color: inherit; opacity: 0.9; }
.ib-card__intro { font-size: 0.86rem; color: inherit; opacity: 0.7; line-height: 1.65; margin: 0 0 1.4rem; text-align: justify; }
.ib-entries { display: flex; flex-direction: column; gap: 1.1rem; }
.ib-entry { border-left: 2px solid var(--surface-border); padding-left: 1rem; }
.ib-entry__tag {
  font-size: 0.68rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: inherit; opacity: 0.45; margin-bottom: 0.35rem;
}
.ib-entry p { margin: 0; font-size: 0.85rem; color: inherit; opacity: 0.62; line-height: 1.62; text-align: justify; }


@media (max-width: 1100px) {
  .p4-grid {
    grid-template-columns: 1fr 1fr;
  }
  .p4-text { grid-column: 1 / 3; }
  .p4-b { grid-column: 1; padding: 0; }
  .p4-c { grid-column: 2; padding: 0; }
  .ib-card { padding: 2rem clamp(1rem, 3vw, 3rem); }
  .p4-asyr, .p4-asyr-left {
    display: none;
  }
}

@media (max-width: 768px) {
  .p4-grid {
    grid-template-rows: auto auto;
    align-content: center;
    padding-top: 0;
  }
  .p4-text {
    align-self: center;
    transform: none;
    padding: 0 1.5rem 1.5rem 1.5rem; /* Restore normal bottom padding */
  }
  .ib-card {
    padding: 0.5rem 0.375rem; /* Reduce top/bottom padding to prevent scrollbars */
  }
  .ib-card__head {
    margin-bottom: 0.8rem;
    padding-bottom: 0.8rem;
  }
  .ib-card__intro {
    padding-left: 1.125rem;
  }
  .p4-c .ib-card__intro,
  .p4-c .ib-entries {
    padding-right: 1.125rem;
  }
}