/* ============================================================
   Animations & Scroll Reveal — Pariah
   ============================================================ */

/* ── Fade-in on scroll ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slowest) var(--ease-out),
              transform var(--duration-slowest) var(--ease-out);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 100ms; }
.reveal--delay-2 { transition-delay: 200ms; }
.reveal--delay-3 { transition-delay: 300ms; }
.reveal--delay-4 { transition-delay: 400ms; }
.reveal--delay-5 { transition-delay: 500ms; }
.reveal--delay-6 { transition-delay: 600ms; }

/* ── Fade variants ─────────────────────────────────────────── */
.reveal--up {
  transform: translateY(40px);
}
.reveal--down {
  transform: translateY(-40px);
}
.reveal--left {
  transform: translateX(40px);
}
.reveal--right {
  transform: translateX(-40px);
}
.reveal--scale {
  transform: scale(0.95);
}

.reveal--visible.reveal--up,
.reveal--visible.reveal--down {
  transform: translateY(0);
}
.reveal--visible.reveal--left,
.reveal--visible.reveal--right {
  transform: translateX(0);
}
.reveal--visible.reveal--scale {
  transform: scale(1);
}

/* ── Stagger children ──────────────────────────────────────── */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.stagger--visible > *:nth-child(1)  { transition-delay: 0ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(2)  { transition-delay: 80ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(3)  { transition-delay: 160ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(4)  { transition-delay: 240ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(5)  { transition-delay: 320ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(6)  { transition-delay: 400ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(7)  { transition-delay: 480ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(8)  { transition-delay: 560ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(9)  { transition-delay: 640ms; opacity: 1; transform: none; }
.stagger--visible > *:nth-child(10) { transition-delay: 720ms; opacity: 1; transform: none; }

/* ── Parallax placeholder ──────────────────────────────────── */
/* will-change is applied dynamically by JS when element is in view */
.parallax {}

/* ── Shimmer line (decorative) ─────────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.shimmer-line {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-gold) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s var(--ease-in-out) infinite;
}

/* ── Glow pulse ────────────────────────────────────────────── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 0 rgba(var(--color-gold-rgb), 0); }
  50% { box-shadow: 0 0 30px rgba(var(--color-gold-rgb), 0.1); }
}

.glow-pulse {
  animation: glow-pulse 4s var(--ease-in-out) infinite;
}

/* ── Hero text reveal ──────────────────────────────────────── */
@keyframes text-reveal {
  0% {
    clip-path: inset(0 100% 0 0);
    opacity: 0;
  }
  100% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
  }
}

.hero-reveal {
  animation: text-reveal 1.2s var(--ease-out) forwards;
}

.hero-reveal--delay-1 { animation-delay: 200ms; }
.hero-reveal--delay-2 { animation-delay: 400ms; }
.hero-reveal--delay-3 { animation-delay: 700ms; }

/* ── Subtle float ──────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.float {
  animation: float 6s var(--ease-in-out) infinite;
}

/* ── Line draw ─────────────────────────────────────────────── */
@keyframes line-draw {
  0% { width: 0; }
  100% { width: 100%; }
}

.line-draw {
  overflow: hidden;
}
.line-draw::after {
  content: '';
  display: block;
  height: 1px;
  background-color: var(--color-gold);
  animation: line-draw 1.5s var(--ease-out) forwards;
}

/* ── Page transition ───────────────────────────────────────── */
/*
  body.page-transition must NOT animate transform — any transform
  on body (even translateY(0)) changes the containing block for
  position:fixed children, causing the cursor and grain to scroll
  with the page instead of staying fixed to the viewport.
*/
.page-transition {
  opacity: 0;
  animation: body-fade-in 0.6s var(--ease-out) forwards;
}

@keyframes body-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (pointer: coarse) {
  .page-transition {
    opacity: 1;
    animation: none;
  }
}