/* ═══════════════════════════════════════════════════
   ANIMATIONS.CSS — Motion System
   ═══════════════════════════════════════════════════ */

/* ─── Reveal Animations (scroll-triggered via GSAP or IntersectionObserver fallback) ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* Staggered children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.stagger-children.revealed > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.revealed > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.revealed > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.revealed > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.revealed > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.revealed > *:nth-child(6) { transition-delay: 0.40s; }
.stagger-children.revealed > *:nth-child(7) { transition-delay: 0.48s; }
.stagger-children.revealed > *:nth-child(8) { transition-delay: 0.56s; }

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

/* ─── Clip-path reveal ─── */
.clip-reveal {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.8s var(--ease-out);
}

.clip-reveal.revealed {
  clip-path: inset(0 0 0 0);
}

/* ─── Split text animation ─── */
.split-line {
  overflow: hidden;
  display: block;
}

.split-line__inner {
  display: block;
  transform: translateY(105%);
  transition: transform 0.8s var(--ease-out);
}

.split-line.revealed .split-line__inner {
  transform: translateY(0);
}

/* ─── Image parallax ─── */
.parallax-image {
  will-change: transform;
}

/* ─── Counter animation ─── */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ─── Magnetic button ─── */
.magnetic {
  transition: transform 0.3s var(--ease-out);
}

/* ─── Hover effects ─── */
.hover-line {
  position: relative;
}

.hover-line::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.hover-line:hover::after { width: 100%; }

/* ─── Marquee ─── */
.marquee {
  overflow: hidden;
  white-space: nowrap;
}

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

.marquee__item {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3xl);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  color: rgba(255, 255, 255, 0.06);
  text-transform: uppercase;
  white-space: nowrap;
}

.marquee__dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin: 0 var(--space-xl);
}

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── Page transition overlay ─── */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--bg-main);
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}

.page-transition.active {
  animation: page-transition-in 0.4s var(--ease-in-out) forwards,
             page-transition-out 0.4s var(--ease-in-out) 0.4s forwards;
}

@keyframes page-transition-in {
  0% { transform: scaleY(0); transform-origin: bottom; }
  100% { transform: scaleY(1); transform-origin: bottom; }
}

@keyframes page-transition-out {
  0% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: top; }
}

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

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

  .split-line__inner {
    transform: none;
  }

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

  .marquee__track {
    animation: none;
  }

  .page-transition {
    display: none;
  }
}