/* ============================================
   ANIMATIONS — Scroll reveals, transitions
   ============================================ */

/* --- Scroll-triggered reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

.reveal--left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal--right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal--left.reveal--visible,
.reveal--right.reveal--visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease-out),
              transform 600ms var(--ease-out);
}

.stagger--visible > *:nth-child(1)  { transition-delay: 0ms; }
.stagger--visible > *:nth-child(2)  { transition-delay: 80ms; }
.stagger--visible > *:nth-child(3)  { transition-delay: 160ms; }
.stagger--visible > *:nth-child(4)  { transition-delay: 240ms; }
.stagger--visible > *:nth-child(5)  { transition-delay: 320ms; }
.stagger--visible > *:nth-child(6)  { transition-delay: 400ms; }
.stagger--visible > *:nth-child(7)  { transition-delay: 480ms; }
.stagger--visible > *:nth-child(8)  { transition-delay: 560ms; }
.stagger--visible > *:nth-child(9)  { transition-delay: 640ms; }
.stagger--visible > *:nth-child(10) { transition-delay: 720ms; }
.stagger--visible > *:nth-child(11) { transition-delay: 800ms; }
.stagger--visible > *:nth-child(12) { transition-delay: 880ms; }

.stagger--visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Hero text entrance --- */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes lineExpand {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.hero-anim-1 {
  animation: heroFadeUp 1s var(--ease-out) 0.2s both;
}

.hero-anim-2 {
  animation: heroFadeUp 1s var(--ease-out) 0.5s both;
}

.hero-anim-3 {
  animation: heroFadeUp 1s var(--ease-out) 0.8s both;
}

.hero-anim-4 {
  animation: heroFadeIn 1.2s var(--ease-out) 1.1s both;
}

.hero-line {
  animation: lineExpand 1s var(--ease-out) 0.7s both;
  transform-origin: left;
}

/* --- Parallax (JS controlled via style) --- */
.parallax {
  will-change: transform;
}

/* --- Marquee (horizontal scroll text) --- */
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
}

.marquee__track {
  display: inline-flex;
  animation: marquee 30s linear infinite;
}

.marquee__item {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 7rem);
  color: var(--color-bg-elevated);
  padding: 0 var(--space-2xl);
  -webkit-text-stroke: 1px var(--color-text-dim);
  font-weight: 700;
  user-select: none;
}

/* --- Pulse (for accent dots, etc.) --- */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* --- Page transition overlay --- */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: var(--color-bg);
  transform: translateY(100%);
  transition: transform 600ms var(--ease-in-out);
  pointer-events: none;
}

.page-transition--active {
  transform: translateY(0);
}

/* --- Hover image tilt (for gallery) --- */
.tilt-hover {
  transition: transform var(--duration-normal) var(--ease-out);
}

.tilt-hover:hover {
  transform: perspective(800px) rotateY(3deg) rotateX(2deg) scale(1.02);
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
  }

  .stagger > * {
    opacity: 1;
    transform: none;
  }
}