/* =========================================================
   WHITE NOVA — ANIMATIONS
   Reveals, transitions, motion primitives.
   Curtain styles are in main.css (phase 3 block).
   ========================================================= */

:root {
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
  --d-fast: 220ms;
  --d-base: 420ms;
  --d-slow: 700ms;
}

/* ---------- DATA-REVEAL (fade + lift) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
}
[data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}
[data-stagger] > *.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- HERO REVEAL ---------- */
[data-hero] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1100ms var(--ease-out), transform 1100ms var(--ease-out);
}
[data-hero].is-in {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered hero children via inline delay nth-child */
[data-hero] > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
}
[data-hero].is-in > * {
  opacity: 1;
  transform: translateY(0);
}
[data-hero].is-in > *:nth-child(1) { transition-delay: 50ms; }
[data-hero].is-in > *:nth-child(2) { transition-delay: 180ms; }
[data-hero].is-in > *:nth-child(3) { transition-delay: 300ms; }
[data-hero].is-in > *:nth-child(4) { transition-delay: 420ms; }
[data-hero].is-in > *:nth-child(5) { transition-delay: 540ms; }

/* ---------- REVEAL-LINE (split-line title reveal) ---------- */
.reveal-line {
  display: block;
  overflow: hidden;
}
.reveal-line > span {
  display: inline-block;
  transform: translateY(100%);
  transition: transform 900ms var(--ease-out);
}
.is-in .reveal-line > span,
[data-hero].is-in .reveal-line > span {
  transform: translateY(0);
}
.reveal-line:nth-child(1) > span { transition-delay: 100ms; }
.reveal-line:nth-child(2) > span { transition-delay: 250ms; }
.reveal-line:nth-child(3) > span { transition-delay: 400ms; }

/* ---------- PAGE LEAVE TRANSITION ---------- */
body {
  opacity: 1;
  transition: opacity 340ms ease;
}
body.is-leaving {
  opacity: 0;
}

/* Page enter: body starts transparent until is-ready */
body:not(.is-ready) main {
  opacity: 0;
}
body.is-ready main {
  opacity: 1;
  transition: opacity 600ms var(--ease-out) 100ms;
}

/* ---------- REDUCE MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal], [data-stagger] > *, [data-hero], [data-hero] > *, .reveal-line > span {
    opacity: 1 !important;
    transform: none !important;
  }
  body:not(.is-ready) main { opacity: 1; }
}

/* ---------- MARQUEE ---------- */
.marquee {
  overflow: hidden;
  display: flex;
  gap: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--wn-ink-15);
  border-bottom: 1px solid var(--wn-ink-15);
  mask-image: linear-gradient(to right, transparent 0%, #000 8%, #000 92%, transparent 100%);
}
.marquee__track {
  display: flex;
  gap: 3rem;
  flex-shrink: 0;
  animation: marqueeScroll 40s linear infinite;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  letter-spacing: -0.01em;
  color: var(--wn-ink-70);
  white-space: nowrap;
}
.marquee__track span {
  display: inline-flex;
  align-items: center;
  gap: 3rem;
}
.marquee__track span::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--wn-accent);
}
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- ORB (decorative radial glow) ---------- */
.orb {
  position: absolute;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle at center, var(--wn-accent-tint), transparent 60%);
  pointer-events: none;
  filter: blur(30px);
  opacity: 0.7;
}

/* ---------- SCROLL PROGRESS ---------- */
.scroll-prog {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--wn-accent);
  transform: scaleX(0);
  transform-origin: left center;
  z-index: 200;
  pointer-events: none;
}