/* ==================================================================
   Cairo FACE — interior-page motion & atmosphere
   Loaded AFTER pages.css, so anything here deliberately wins at equal
   specificity. Keep it to transform/opacity/filter: layout belongs in
   pages.css, or the two files start fighting over the same box.

   Contract with js/motion.js
     [data-reveal]      -> gains .is-in once it has crossed into view
     [data-px="0.14"]   -> JS writes --py (px) every frame, desktop only
     [data-count]       -> number counts up the first time it is seen
     .pdepth            -> pointer parallax via --mx / --my (-1 .. 1)

   Motion budget: nothing here animates anything but transform, opacity
   and filter, so every effect stays on the compositor.
   ================================================================== */

:root {
  --mo-dur: 0.72s;
  --mo-stagger: 70ms;
}

/* ------------------------------------------------------------------
   1. Reveals
   The no-JS path matters: if motion.js never runs, [data-reveal] must
   still be readable. JS stamps .mo-ready on <html> before first paint,
   and only then does anything hide.
   ------------------------------------------------------------------ */
.mo-ready [data-reveal] {
  opacity: 0;
  transition:
    opacity var(--mo-dur) var(--ease-out),
    transform var(--mo-dur) var(--ease-out),
    clip-path var(--mo-dur) var(--ease-out),
    filter var(--mo-dur) var(--ease-out);
  transition-delay: calc(var(--i, 0) * var(--mo-stagger));
  will-change: opacity, transform;
}
.mo-ready [data-reveal="up"],
.mo-ready [data-reveal=""]      { transform: translate3d(0, 26px, 0); }
.mo-ready [data-reveal="down"]  { transform: translate3d(0, -22px, 0); }
.mo-ready [data-reveal="left"]  { transform: translate3d(-32px, 0, 0); }
.mo-ready [data-reveal="right"] { transform: translate3d(32px, 0, 0); }
.mo-ready [data-reveal="zoom"]  { transform: scale(0.94); }
.mo-ready [data-reveal="rise"]  { transform: translate3d(0, 44px, 0) scale(0.97); }
/* for photography — the frame wipes open rather than fading, which reads
   as deliberate rather than as a slow-loading image */
.mo-ready [data-reveal="wipe"] {
  opacity: 1;
  clip-path: inset(0 0 100% 0);
}
.mo-ready [data-reveal="blur"] { filter: blur(14px); transform: scale(1.03); }

.mo-ready [data-reveal].is-in {
  opacity: 1;
  transform: none;
  filter: none;
  clip-path: inset(0 0 0 0);
}
/* once it has played, stop paying for the compositor hint */
.mo-ready [data-reveal].is-done { will-change: auto; transition-delay: 0s; }

/* ------------------------------------------------------------------
   2. Parallax primitive
   JS writes --py. The element itself only ever reads it, so a layer
   that JS skips (mobile, reduced motion) simply sits at 0.
   ------------------------------------------------------------------ */
[data-px] {
  transform: translate3d(0, var(--py, 0px), 0);
  will-change: transform;
}
/* layers that also want their own scale keep it in --pxs */
[data-px][data-px-scale] {
  transform: translate3d(0, var(--py, 0px), 0) scale(var(--pxs, 1.12));
}

/* ------------------------------------------------------------------
   3. Page hero — photographic depth stack
   .phero already sets position:relative + overflow:hidden, so the whole
   stack clips to the hero box and nothing here can cause a side-scroll.
   ------------------------------------------------------------------ */
.pdepth {
  position: absolute;
  inset: -12% 0 -12%;          /* headroom so parallax never exposes an edge */
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.pdepth > * { position: absolute; inset: 0; }

.pdepth__shot {
  /* NB: the page sets background-image in a style attribute, not through a
     custom property. A url() inside a custom property is resolved against the
     stylesheet that substitutes it, so --shot:url('img/x.jpg?v=b4') used here
     resolved to /css/img/x.jpg?v=b4. An inline background-image resolves against
     the document, which is what we want. */
  background-size: cover;
  background-position: var(--shot-pos, center);
  opacity: var(--shot-op, 0.46);
  /* the headline sits centred, so the picture is dimmed — not erased — where
     the type lands, and comes back up to full strength towards the edges */
  -webkit-mask-image: radial-gradient(128% 96% at 50% 42%, rgba(0,0,0,0.30) 0%, rgba(0,0,0,0.62) 44%, #000 82%);
          mask-image: radial-gradient(128% 96% at 50% 42%, rgba(0,0,0,0.30) 0%, rgba(0,0,0,0.62) 44%, #000 82%);
  transform: translate3d(calc(var(--mx, 0) * -14px), calc(var(--py, 0px) + var(--my, 0) * -10px), 0) scale(1.08);
  transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}
/* two soft lights that drift at different speeds — this is what stops a
   flat navy gradient from reading as a dead background */
.pdepth__glow {
  background:
    radial-gradient(46% 40% at 18% 22%, rgba(168, 48, 32, 0.40), transparent 70%),
    radial-gradient(40% 42% at 84% 74%, rgba(122, 32, 16, 0.34), transparent 72%);
  animation: moDrift 22s ease-in-out infinite alternate;
}
.pdepth__lines {
  background-image: url("../img/face-contours.svg?v=b4");
  background-size: min(760px, 74%) auto;
  background-repeat: no-repeat;
  background-position: right -110px center;
  opacity: 0.12;
  transform: translate3d(calc(var(--mx, 0) * 18px), var(--py, 0px), 0);
  transition: transform 1.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.pdepth__grain {
  opacity: 0.5;
  background-image: radial-gradient(rgba(255, 255, 255, 0.16) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}
/* the floor of the hero fades into the page below it */
.pdepth__veil {
  background: linear-gradient(
    180deg,
    rgba(8, 27, 41, 0.34) 0%,
    rgba(8, 27, 41, 0.04) 38%,
    rgba(8, 27, 41, 0.55) 82%,
    rgba(8, 27, 41, 0.86) 100%
  );
}
@keyframes moDrift {
  from { transform: translate3d(-2.5%, -1.5%, 0) scale(1.04); }
  to   { transform: translate3d(2.5%, 2%, 0) scale(1.12); }
}

.phero--depth .phero__inner { position: relative; z-index: 2; }
.phero--depth { padding-bottom: 96px; }

/* the hero eyebrow gets a hairline that draws itself in */
.phero__eyebrow { position: relative; display: inline-block; }
.phero--depth .phero__eyebrow::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -10px;
  height: 1px; width: 0;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: translateX(-50%);
  animation: moRule 1.1s 0.35s var(--ease-out) forwards;
}
@keyframes moRule { to { width: 132px; } }

/* a soft scroll cue, only on the tall hero */
.phero__cue {
  position: absolute;
  left: 50%; bottom: 28px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.62);
  pointer-events: none;
}
.phero__cue i {
  display: block; width: 1px; height: 40px;
  background: linear-gradient(180deg, rgba(255,255,255,0.55), transparent);
  overflow: hidden;
}
.phero__cue i::after {
  content: ""; display: block; width: 1px; height: 14px;
  background: var(--accent);
  animation: moCue 2.2s var(--ease-ui) infinite;
}
@keyframes moCue {
  0%   { transform: translateY(-16px); opacity: 0; }
  30%  { opacity: 1; }
  100% { transform: translateY(40px); opacity: 0; }
}

/* ------------------------------------------------------------------
   4. Section atmosphere
   A light section still wants depth, just quieter: one very soft wash
   that drifts, and an optional hairline that draws across the top.
   ------------------------------------------------------------------ */
.psection { position: relative; }
.psection--atmo { overflow: hidden; isolation: isolate; }
.psection--atmo::before {
  content: "";
  position: absolute;
  inset: -20% -10%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38% 34% at var(--atmo-x, 16%) 18%, rgba(168, 48, 32, 0.16), transparent 70%),
    radial-gradient(34% 38% at var(--atmo-x2, 88%) 82%, rgba(122, 32, 16, 0.13), transparent 72%);
  animation: moDrift 26s ease-in-out infinite alternate;
}

/* a rule that draws itself the first time the section is reached */
.prule {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline-light) 18%, var(--hairline-light) 82%, transparent);
  transform: scaleX(0);
  transform-origin: 50% 50%;
  transition: transform 1s var(--ease-out);
}
.prule.is-in { transform: scaleX(1); }

/* ------------------------------------------------------------------
   5. Component hover life
   These upgrade components that already exist — no new card variants.
   All of it is gated behind hover:hover so a touch device never gets
   stuck in a half-applied hover state.
   ------------------------------------------------------------------ */
.vcard {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition:
    transform 0.5s var(--ease-out),
    box-shadow 0.5s var(--ease-out),
    border-color 0.35s var(--ease-ui);
}
/* the sheen: a wide, very soft highlight that follows the cursor.
   JS writes --hx / --hy as percentages of the card. */
.vcard::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    26% 46% at var(--hx, 50%) var(--hy, 50%),
    rgba(168, 48, 32, 0.22),
    transparent 72%
  );
  transition: opacity 0.4s var(--ease-ui);
}
.vcard__num {
  position: relative;
  display: inline-block;
  transition: color 0.35s var(--ease-ui), transform 0.5s var(--ease-out);
}
.vcard h3 { transition: color 0.3s var(--ease-ui); }

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .vcard:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 18px 44px rgba(10, 26, 40, 0.14);
  }
  .vcard:hover::before { opacity: 1; }
  .vcard:hover .vcard__num { color: var(--accent); transform: translateY(-2px); }
  .vcard:hover h3 { color: var(--accent-strong); }
}

/* speaker cards: the portrait breathes, the card lifts */
.spk__media img {
  transition: transform 0.8s var(--ease-out);
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .spk:hover { box-shadow: 0 18px 40px rgba(10, 26, 40, 0.14); }
  .spk:hover .spk__media img { transform: scale(1.06); }
  .spk:hover .spk__name { color: var(--accent-strong); }
}
.spk__name { transition: color 0.3s var(--ease-ui); }

/* award cards: the accent border sweeps in from the left edge */
.award {
  position: relative;
  overflow: hidden;
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}
.award::after {
  content: "";
  position: absolute;
  inset-inline-start: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent-strong);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform 0.5s var(--ease-out);
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .award:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(10, 26, 40, 0.12); }
  .award:hover::after { transform: scaleY(1); }
}

/* buttons: a light sweep, plus a small magnetic pull written by JS */
.btn-pill, .btn-ghost, .pill-sm {
  transition: transform 0.4s var(--ease-out), background 0.3s var(--ease-ui),
              border-color 0.3s var(--ease-ui), color 0.3s var(--ease-ui),
              box-shadow 0.4s var(--ease-out);
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .btn-pill:hover, .pill-sm:hover { box-shadow: 0 12px 28px rgba(122, 32, 16, 0.28); }
  .btn-pill .circle-arrow { transition: transform 0.4s var(--ease-out); }
  .btn-pill:hover .circle-arrow { transform: translateX(3px); }
}

/* filter chips and day tabs pick up the same lift so the page feels of a piece */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .fchip:hover { transform: translateY(-2px); }
  .agdaytab:hover { transform: translateY(-2px); }
}
.fchip, .agdaytab { transition: transform 0.3s var(--ease-out), border-color 0.25s var(--ease-ui), background 0.25s var(--ease-ui), color 0.25s var(--ease-ui), box-shadow 0.3s var(--ease-ui); }

/* ------------------------------------------------------------------
   6. Editorial media band — a picture that drifts against its copy
   ------------------------------------------------------------------ */
.pband { position: relative; }
.pband__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}
.pband--flip .pband__inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); }
.pband--flip .pband__media { order: 2; }

.pband__media {
  position: relative;
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 28px 64px rgba(10, 26, 40, 0.20);
  aspect-ratio: var(--band-ratio, 4 / 3);
}
.pband__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  /* over-height so the inner drift never shows a gap at top or bottom */
  transform: translate3d(0, var(--py, 0px), 0) scale(1.14);
  will-change: transform;
}
/* a thin accent frame that traces the corner — premium, cheap, no assets */
.pband__media::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  pointer-events: none;
}
.pband__copy { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.pband__copy h2 { font-size: clamp(24px, 2.8vw, 38px); font-weight: 700; line-height: 1.15; letter-spacing: -0.015em; }
.pband__copy p { font-size: 17px; font-weight: 400; line-height: 1.6; color: var(--muted-light); max-width: 54ch; }
.pband__eyebrow { font-size: 13px; font-weight: 500; letter-spacing: 0.12em; color: var(--accent-strong); }

/* a caption plate that floats over the lower corner of the picture */
.pband__plate {
  position: absolute;
  left: 24px; bottom: 24px; right: 24px;
  z-index: 2;
  display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: baseline;
  padding: 14px 18px;
  border-radius: 14px;
  background: rgba(10, 26, 40, 0.44);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
          backdrop-filter: blur(14px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.20);
  color: #fff;
}
.pband__plate b { font-size: 15px; font-weight: 600; }
.pband__plate span { font-size: 13px; font-weight: 400; opacity: 0.78; }

@media (max-width: 980px) {
  .pband__inner,
  .pband--flip .pband__inner { grid-template-columns: 1fr; gap: 28px; }
  .pband--flip .pband__media { order: 0; }
  .pband__copy p { max-width: none; }
}

/* ------------------------------------------------------------------
   7. Figure counters
   One component for every hero: the exhibition hero carries four
   figures, the about hero all six and the speakers hero two, so the
   tracks are capped and centred rather than fixed in number. A
   `repeat(auto-fit, minmax(x, 1fr))` would have stretched the two-up
   row to half the hero each.
   ------------------------------------------------------------------ */
.pstats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 220px));
  justify-content: center;
  gap: 24px 16px;
  list-style: none;
  margin: 32px auto 0;
  padding: 0;
  width: 100%;
  max-width: 1140px;
}
.pstat {
  display: flex; flex-direction: column; gap: 4px;
  padding: 20px 0 0;
  border-top: 2px solid var(--hairline-light);
}
.pstat b {
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 700; line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.pstat b span { font: inherit; letter-spacing: inherit; }
.pstat span { font-size: 13px; font-weight: 500; color: var(--muted-light); }
.phero--depth .pstat span { color: rgba(255, 255, 255, 0.66); }
.phero--depth .pstat { border-top-color: rgba(255, 255, 255, 0.22); }

@media (max-width: 860px) {
  .pstats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ------------------------------------------------------------------
   8. Scroll progress — a 2px accent line under the viewport top edge
   ------------------------------------------------------------------ */
.moprog {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 40;
  background: var(--accent);
  transform: scaleX(var(--p, 0));
  transform-origin: 0 50%;
  pointer-events: none;
  opacity: 0.9;
}

/* ------------------------------------------------------------------
   9. Mobile — reveals only.
   Scroll-scrubbed parallax on mobile Safari costs frames and battery
   for an effect a thumb-scrolling reader barely registers, so below
   1024px JS stops writing --py and the decorative stacks simplify.
   ------------------------------------------------------------------ */
@media (max-width: 1023px) {
  [data-px], [data-px][data-px-scale] { transform: none; }
  .pband__media img { transform: scale(1.02); }
  .pdepth__shot {
    transform: none;
    opacity: 0.34;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,0.35) 72%, transparent 100%);
            mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,0.35) 72%, transparent 100%);
  }
  .pdepth__lines { transform: none; opacity: 0.08; background-position: right -180px center; }
  .pdepth { inset: 0; }
  .phero__cue { display: none; }
  .pband__plate { left: 12px; right: 12px; bottom: 12px; padding: 12px 14px; }
  .pband__media::after { inset: 8px; border-radius: 10px; }
  .phero--depth { padding-bottom: 32px; }
}
@media (max-width: 600px) {
  /* the contact dock is fixed to the bottom-left of the viewport, so the
     shorter the hero the more likely it lands on the section below rather
     than across a figure label */
  .pstats { margin-top: 20px; gap: 16px 12px; }
  .pstat { padding-top: 14px; }
  .pstat span { font-size: 12px; }
}
@media (max-width: 600px) {
  .pband__media { border-radius: 18px; }
  .pstat b { font-size: 30px; }
}

/* ------------------------------------------------------------------
   10. Reduced motion — everything resolves to its finished state
   ------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .mo-ready [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    clip-path: none !important;
    transition: none !important;
  }
  [data-px], .pband__media img, .pdepth__shot, .pdepth__lines { transform: none !important; }
  .pdepth__glow, .psection--atmo::before { animation: none; }
  .phero--depth .phero__eyebrow::after { animation: none; width: 132px; }
  .phero__cue { display: none; }
  .prule { transform: none; transition: none; }
  .moprog { display: none; }
}