/* =========================================================================
   MERIDIAN — hero-fx.css
   The hero's opening sequence. Self-contained, no external requests.
   -------------------------------------------------------------------------
   Techniques lifted from build/lib/premium.css (split-text line reveal,
   cursor spotlight, parallax, masked layers) and deliberately dialled *down*
   for an editorial studio: one idea per element, long easings, small travel.

   SAFETY CONTRACT
   ---------------
   Nothing here hides content that only JavaScript can bring back. Every
   entrance is a CSS @keyframes animation with `both` fill — if CSS runs, the
   animation runs and ends on the visible state. JS only adds the two things
   that genuinely need a pointer or a scroll position: the cursor spotlight
   and the parallax offset, both written as custom properties that default to
   a no-op. The reduced-motion block pins everything to its final state.

   Contents
     1. Headline: masked per-word reveal
     2. Supporting copy, availability pill, stats
     3. Hero artwork: assembly sequence, parallax, cursor spotlight
     4. Reduced motion + print
   ========================================================================= */

/* Declared on :root, not on .mfx — the artwork band is a SIBLING of the hero
   section, so a variable scoped to .mfx would be undefined there and every
   `animation` shorthand using it would be dropped as invalid. */
:root {
  --mfx-ease: cubic-bezier(0.16, 1, 0.3, 1);
}


/* =========================================================================
   1. HEADLINE
   Each line is its own mask; the words inside rise through it on a short
   stagger. One overflow container per line (not per word) keeps descenders
   safe — the padding/margin pair below re-opens the box for the "g" in
   "design" without changing the layout by a single pixel.
   ========================================================================= */

.mfx .hero__title .line {
  overflow: hidden;
  padding-bottom: 0.22em;
  margin-bottom: -0.22em;
}

.mfx__w {
  display: inline-block;
  transform: translate3d(0, 140%, 0);
  animation: mfx-word-up 1150ms var(--mfx-ease) both;
  animation-delay: calc(180ms + var(--i, 0) * 90ms);
  will-change: transform;
}
@keyframes mfx-word-up {
  from { transform: translate3d(0, 140%, 0); }
  to   { transform: translate3d(0, 0, 0); }
}

/* The italic serif word is the headline's one flourish — let it arrive with
   a whisper of extra travel so the eye lands on it last. */
.mfx__w--serif {
  animation-duration: 1350ms;
}


/* =========================================================================
   2. SUPPORTING COPY
   ========================================================================= */

.mfx .hero__meta    { animation: mfx-rise 900ms var(--mfx-ease) 60ms both; }
.mfx .hero__foot > div:first-child { animation: mfx-rise 1000ms var(--mfx-ease) 620ms both; }
.mfx .stat-row      { animation: mfx-rise 1000ms var(--mfx-ease) 740ms both; }

@keyframes mfx-rise {
  from { opacity: 0; transform: translate3d(0, 18px, 0); }
  to   { opacity: 1; transform: none; }
}

/* Availability pill: the dot should read as a live status light. */
.mfx .pill--accent .dot {
  animation: mfx-pulse 2.6s ease-out infinite;
}
@keyframes mfx-pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  70%  { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* Stats tick up; the digits are tabular so nothing reflows while they do. */
.mfx .stat__value { font-variant-numeric: tabular-nums; }

/* Rules above the stats draw themselves in, left to right. */
.mfx .stat-row {
  border-top-color: transparent;
  position: relative;
}
.mfx .stat-row::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: var(--line-strong);
  transform: scaleX(0);
  transform-origin: 0 50%;
  animation: mfx-rule 1400ms var(--mfx-ease) 760ms both;
}
@keyframes mfx-rule {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}


/* =========================================================================
   3. HERO ARTWORK
   The composition assembles: the field settles from a wider crop, the ember
   disc rises from the lower left, the sand disc scales in, and two hairline
   registration rules draw across it. All transform/opacity only.
   ========================================================================= */

.mfx-art {
  --mfx-par-a: 0px;      /* written by hero-fx.js on scroll */
  --mfx-par-b: 0px;
  --mfx-mx: 50%;         /* written by hero-fx.js on pointermove */
  --mfx-my: 50%;
}

/* The band is uncovered top-to-bottom, the way a plate is revealed in print.
   Base state has no clip-path at all, so an engine that cannot animate
   clip-path simply shows the finished artwork. */
.mfx-band {
  animation: mfx-band-in 1500ms var(--mfx-ease) 240ms both;
  will-change: clip-path;
}
@keyframes mfx-band-in {
  from { clip-path: inset(0 0 100% 0); opacity: 0.4; }
  to   { clip-path: inset(0 0 0 0);    opacity: 1; }
}

@media (prefers-reduced-motion: no-preference) {
  /* Two animations: the settle, then style.css's endless slow drift picking
     up exactly where the settle left off (scale 1.06 / -1.2% / -0.8%), so
     there is no jump between them. `translate` is a separate property from
     `transform`, which is what lets the parallax offset ride on top of a
     keyframed transform without fighting it. */
  .mfx-band .art__field {
    animation:
      mfx-field-in 1800ms var(--mfx-ease) 320ms both,
      drift 26s ease-in-out 2.1s infinite alternate;
    translate: 0 var(--mfx-par-a);
  }
}
@keyframes mfx-field-in {
  from { transform: scale(1.16) translate3d(-1.2%, -0.8%, 0); }
  to   { transform: scale(1.06) translate3d(-1.2%, -0.8%, 0); }
}

/* Ember disc rises into frame from the lower left. */
.mfx-band .art--meridian .art__field::before {
  animation: mfx-disc-in 1600ms var(--mfx-ease) 520ms both;
  will-change: transform, opacity;
}
@keyframes mfx-disc-in {
  from { opacity: 0; transform: translate3d(-14%, 26%, 0) scale(0.86); }
  to   { opacity: 0.94; transform: none; }
}

/* Sand disc scales in a beat later. */
.mfx-band .art--meridian .art__field::after {
  animation: mfx-dot-in 1200ms var(--mfx-ease) 860ms both;
  will-change: transform, opacity;
}
@keyframes mfx-dot-in {
  from { opacity: 0; transform: scale(0.4); }
  to   { opacity: 1; transform: none; }
}

/* --- registration mark ---------------------------------------------------
   Rules and ring share one centre, so together they read as a printer's
   registration target sitting on the composition's left third — deliberate
   art direction rather than a stray overlay grid. */
.mfx-art__parts {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  translate: 0 var(--mfx-par-b);
}

.mfx-art__rule {
  position: absolute;
  display: block;
  /* Fixed warm off-white rather than a theme token: the artwork field is a
     dark blue/terracotta in BOTH themes, so the mark has to be light in
     both. --art-bone flips to near-black on dark and would vanish. */
  background: rgba(247, 242, 234, 0.5);
}
.mfx-art__rule--v {
  left: 33.33%;
  top: 0;
  bottom: 0;
  width: 1px;
  transform: scaleY(0);
  transform-origin: 50% 0;
  animation: mfx-draw-y 1500ms var(--mfx-ease) 900ms both;
}
.mfx-art__rule--h {
  left: 0;
  right: 0;
  top: 38%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  animation: mfx-draw-x 1700ms var(--mfx-ease) 1040ms both;
}
@keyframes mfx-draw-y { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@keyframes mfx-draw-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.mfx-art__ring {
  position: absolute;
  display: block;
  left: 33.33%;
  top: 38%;
  /* `translate` centres the ring on the crosshair; `transform` is left free
     for the scale-in animation so the two never fight. */
  translate: -50% -50%;
  width: clamp(64px, 8.5vw, 132px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px solid rgba(247, 242, 234, 0.62);
  opacity: 0;
  animation: mfx-ring-in 1400ms var(--mfx-ease) 1180ms both;
}
@keyframes mfx-ring-in {
  from { opacity: 0; transform: scale(0.55); }
  to   { opacity: 0.9; transform: none; }
}

/* --- cursor spotlight ---------------------------------------------------
   hero-fx.js writes --mfx-mx/--mfx-my in percentages; CSS does the drawing,
   so a pointermove costs two setProperty calls inside a rAF and no layout.
   Soft-light keeps it reading as light falling on the artwork rather than a
   white blob pasted over it.                                              */
.mfx-art__spot {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: soft-light;
  background: radial-gradient(
    clamp(220px, 26vw, 460px) circle at var(--mfx-mx) var(--mfx-my),
    rgba(255, 255, 255, 0.55),
    rgba(255, 255, 255, 0.14) 42%,
    transparent 68%);
  transition: opacity 520ms var(--ease);
}
.mfx-art.is-spot .mfx-art__spot { opacity: 1; }


/* =========================================================================
   4. REDUCED MOTION
   Everything lands on its finished state; nothing keeps moving. The counters
   show their real figures because hero-fx.js never touches them (see there).
   ========================================================================= */

@media (prefers-reduced-motion: reduce) {
  .mfx__w,
  .mfx .hero__meta,
  .mfx .hero__foot > div:first-child,
  .mfx .stat-row,
  .mfx-band,
  .mfx-band .art__field,
  .mfx-band .art--meridian .art__field::before,
  .mfx-band .art--meridian .art__field::after,
  .mfx-art__rule,
  .mfx-art__ring,
  .mfx .stat-row::before {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    translate: none !important;
  }
  .mfx-band { clip-path: none !important; }
  .mfx-band .art__field { transform: scale(1.06) !important; }
  .mfx-band .art--meridian .art__field::before { opacity: 0.94 !important; }
  /* `translate` centres the ring on the crosshair — it is layout, not
     motion, so it must survive the reset above. */
  .mfx-art__ring { opacity: 0.9 !important; translate: -50% -50% !important; }
  .mfx .stat-row { border-top-color: var(--line); }
  .mfx .stat-row::before { display: none !important; }
  .mfx .pill--accent .dot { animation: none !important; }
  .mfx-art__spot { display: none !important; }
}

@media print {
  .mfx-art__parts, .mfx-art__spot { display: none !important; }
}