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/* =========================================================================
   base.css — reset, body sky gradient, typography defaults, utilities
   ========================================================================= */

/* --- Minimal reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;             /* gentle anchor jumps        */
  -webkit-text-size-adjust: 100%;
  /* THE LOCKED SKY (paints first via inline critical <style> in <head>).
     background-attachment:fixed does TWO things mobile needs:
     (1) locks the gradient to the viewport so it never scrolls/gaps,
     (2) is the ONLY background iOS Safari renders in the overscroll
     region — so the rubber-band area shows pink, not bare space.
     .scene (fixed, GPU-promoted) paints the same gradient on top for
     the normal locked-sky view; this html layer is the bulletproof
     base that loads first and covers everything. */
  background: linear-gradient(
    180deg,
    var(--sky-top) 0%,
    var(--sky-mid) 52%,
    var(--sky-bottom) 100%
  ) fixed;
  background-color: var(--sky-mid);    /* solid mid-pink fallback */
  overscroll-behavior-y: none;
}

body {
  font-family: var(--font-body);
  font-size: var(--step-body);
  line-height: 1.65;
  color: var(--ink);

  /* The gradient now lives on <body>. This is the bulletproof layer: body
     grows to the full document height and repaints synchronously with
     content (it IS the content container), so a gap is physically
     impossible — no matter how the fixed .scene/overlay layers behave.
     The stretch over a tall page actually reads as the sky slowly shifting
     from lavender → pink → peach as you descend, which suits the theme.
     Transparent is GONE; body paints its own sky. */
  background: linear-gradient(
    180deg,
    var(--sky-top) 0%,
    var(--sky-mid) 52%,
    var(--sky-bottom) 100%
  );
  background-color: var(--sky-mid);    /* solid mid-pink fallback */
  min-height: 100vh;
  min-height: 100dvh;                  /* dvh = real mobile viewport (toolbar-aware) */
  overflow-x: hidden;                  /* no horizontal scroll from floaters */
  overscroll-behavior-y: none;         /* no rubber-band → no bare edges while scrolling */

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* --- Headings use the rounded display face --- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

p { max-width: 62ch; }

a {
  color: var(--rose-deep);
  text-decoration: none;
  transition: color 0.2s var(--ease-gentle);
}
a:hover { color: var(--ink); }

/* Soft text shadow so text stays dreamy-readable on any cloud area */
.hero h1,
.hero p,
.brand,
.manifesto h2,
.manifesto p {
  text-shadow: 0 2px 24px rgba(255, 214, 232, 0.55),
               0 1px 2px rgba(255, 255, 255, 0.4);
}

/* --- Layout helpers --- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.center { text-align: center; }
.muted { color: var(--ink-soft); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
  padding: 0.95em 1.7em;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-soft),
              box-shadow 0.25s var(--ease-soft),
              background 0.2s var(--ease-gentle);
  text-decoration: none;
}

.btn-primary {
  background: var(--rose);
  color: #fff;
  box-shadow: 0 10px 28px rgba(255, 143, 171, 0.45),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-primary:hover {
  background: var(--rose-deep);
  color: #fff;
  box-shadow: 0 14px 36px rgba(232, 111, 146, 0.55),
              inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-primary:active { transform: scale(0.97); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 143, 171, 0.3);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
}
.btn-ghost:active { transform: scale(0.97); }

/* Visible focus ring for keyboard users */
.btn:focus-visible,
a:focus-visible {
  outline: 3px solid var(--rose-deep);
  outline-offset: 3px;
}

/* --- Selection --- */
::selection {
  background: var(--rose);
  color: #fff;
}

/* --- Reduced motion: kill all ambient drift globally --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}


/* =========================================================================
   Full-site dream overlays
   Order (back → front): content (0–3) → BLUR overlay (4) → GRAIN overlay (5)
   Both are pointer-events: none so they never block interaction.
   ========================================================================= */

/* Layer A — soft blur over the whole site. Sits ABOVE everything except
   the grain, giving the page a hazy, dreamy soft-focus feel. */
.blur-overlay {
  position: fixed;
  top: -16px;                            /* overscan: extend beyond viewport on all sides */
  right: -16px;                          /* so compositor lag / toolbar transitions never */
  bottom: -16px;                         /* reveal a gap strip at any edge during scroll */
  left: -16px;
  z-index: 4;
  pointer-events: none;
  transform: translateZ(0);
  will-change: transform;
  backdrop-filter: blur(0.5px);            /* subtle dreamy blur          */
  -webkit-backdrop-filter: blur(0.5px);
}

/* Layer B — animated film grain ON TOP of the blur. SVG fractal noise as
   a data URI, tiled and jittered with steps() so it shimmers like real
   analog grain. mix-blend-mode keeps it tonal, not grey. */
.grain-overlay {
  position: fixed;
  top: -16px;                            /* overscan (same reason as .blur-overlay) */
  right: -16px;
  bottom: -16px;
  left: -16px;
  z-index: 5;
  pointer-events: none;
  opacity: 0.09;                            /* keep it whisper-light       */
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  animation: grain 0.6s steps(3) infinite;
}
@keyframes grain {
  0%   { transform: translate(0, 0); }
  33%  { transform: translate(-4px, 3px); }
  66%  { transform: translate(3px, -4px); }
  100% { transform: translate(-2px, -2px); }
}

@media (prefers-reduced-motion: reduce) {
  .grain-overlay { animation: none; }
}

/* On touch devices the dreamy blur + grain are now RESTORED — the real
   cause of the scroll strip (a fixed .scene gradient mismatched against a
   scrolling body gradient) is fixed, so a frozen overlay layer no longer
   reveals a mismatched colour underneath. 0.5px blur is subtle enough that
   even a momentary freeze reads as nothing, and the grain is noise (never
   colour-mismatched). Desktop keeps its defaults via the rules above. */
@media (hover: none), (pointer: coarse) {
  /* grain boosted slightly so it reads on bright mobile screens */
  .grain-overlay { opacity: 0.12; }
}


/* =========================================================================
   Motion system — word-by-word split + scroll reveals
   Driven by js/motion.js. transform/opacity only, GPU-safe.
   ========================================================================= */

/* word-by-word split: each word starts clipped + offset, eases in */
.word {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em) rotate(2deg);
  filter: blur(6px);
  transition: opacity var(--dur-slow) var(--ease-soft),
              transform var(--dur-slow) var(--ease-spring),
              filter var(--dur-slow) var(--ease-soft);
  will-change: transform, opacity, filter;
}
.word.is-in {
  opacity: 1;
  transform: translateY(0) rotate(0);
  filter: blur(0);
}

/* generic scroll reveal: fade + rise */
[data-reveal],
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-soft),
              transform var(--dur-slow) var(--ease-soft);
  will-change: transform, opacity;
}
[data-reveal].is-in,
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}
/* stagger helpers (keep parity with the old .dN classes) */
[data-reveal].d1, .reveal.d1 { transition-delay: 0.08s; }
[data-reveal].d2, .reveal.d2 { transition-delay: 0.16s; }
[data-reveal].d3, .reveal.d3 { transition-delay: 0.24s; }
[data-reveal].d4, .reveal.d4 { transition-delay: 0.32s; }

/* pinned constellation: the section sticks while the stage scrubs in */
.constellation-pin {
  position: relative;
}
.constellation-stage {
  transition: opacity var(--dur-cinema) var(--ease-flow),
              transform var(--dur-cinema) var(--ease-flow);
}

@media (prefers-reduced-motion: reduce) {
  .word { opacity: 1; transform: none; filter: none; }
  [data-reveal], .reveal { opacity: 1; transform: none; }
}