/* ============================================================
   VANCENCO V2 — ANIMATIONS
   Scroll-triggered reveals, text splits, page transitions,
   and entrance sequences. Driven by GSAP + Intersection Observer.
   ============================================================ */


/* ===================
   REVEAL ANIMATIONS
   Elements start hidden, become visible when .is-visible is added.
   =================== */

/* Fade up (default reveal) */
.reveal, .reveal-up {
  opacity: 0;
  transform: translateY(80px);
  transition:
    opacity 1200ms var(--ease-out-expo),
    transform 1200ms var(--ease-out-expo);
}

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

/* Fade up with stagger delay support */
.reveal-stagger {
  opacity: 0;
  transform: translateY(60px);
  transition:
    opacity 1200ms var(--ease-out-expo),
    transform 1200ms var(--ease-out-expo);
}

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

/* Stagger delay classes */
.reveal-stagger.is-visible:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-visible:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger.is-visible:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger.is-visible:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger.is-visible:nth-child(5) { transition-delay: 400ms; }
.reveal-stagger.is-visible:nth-child(6) { transition-delay: 500ms; }

/* Fade in from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-80px);
  transition:
    opacity 1200ms var(--ease-out-expo),
    transform 1200ms var(--ease-out-expo);
}

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

/* Fade in from right */
.reveal-right {
  opacity: 0;
  transform: translateX(80px);
  transition:
    opacity 1200ms var(--ease-out-expo),
    transform 1200ms var(--ease-out-expo);
}

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

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

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

/* Clip reveal (wipe from bottom) */
.reveal-clip {
  clip-path: inset(100% 0 0 0);
  transition: clip-path var(--duration-glacial) var(--ease-out-expo);
}

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


/* ===================
   TEXT SPLIT ANIMATIONS
   Applied to elements processed by SplitType.
   GSAP handles the actual stagger; these are fallback styles.
   =================== */

/* Characters start invisible, GSAP animates them in */
.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
}

.split-text.is-visible .char {
  opacity: 1;
  transform: translateY(0);
}

/* Word-level split */
.split-words .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(15px);
}

.split-words.is-visible .word {
  opacity: 1;
  transform: translateY(0);
}

/* Line-level split (Exo Ape title-mask pattern) */
.split-lines .line {
  display: block;
  overflow: hidden;
}

.split-lines .line-inner {
  display: block;
  transform: translateY(100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.split-lines.is-visible .line-inner {
  transform: translateY(0);
}


/* ===================
   PAGE TRANSITION (Swup Curtain Wipe)
   A solid-colour block that sweeps over the viewport during
   page transitions. This replaces the simple opacity fade.
   =================== */

/* The curtain element (added to HTML outside <main>) */
.transition-curtain {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--color-dark);
  transform: translateY(100%);
  pointer-events: none;
  will-change: transform;
}

/* Main content container — base state */
.transition-main {
  opacity: 1;
  /* CRITICAL FIX: No positional transforms permitted here. Protects GSAP position: fixed physics */
  transition: opacity var(--duration-normal) var(--ease-out-expo);
  will-change: opacity;
}

/* CRITICAL FIX: Notice the mandatory space before .transition-main */
html.is-animating .transition-main,
html.is-rendering .transition-main {
  opacity: 0;
  /* CRITICAL FIX: Removed transform: translateY(20px). Rely purely on opacity. */
}

/* Page overlay (Exo Ape uses this as a transition darkness layer) */
.page-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 150vh;
  background: var(--color-dark);
  pointer-events: none;
  transform: translateZ(0);
  visibility: hidden;
  z-index: var(--z-base);
}


/* ===================
   HERO ENTRANCE SEQUENCE
   Staggered entrance for hero elements on page load.
   =================== */
.hero-entrance {
  opacity: 0;
  transform: translateY(50px) scale(0.97);
  animation: hero-fade-in 2200ms var(--ease-out-expo) forwards;
}

.hero-entrance--delay-1 { animation-delay: 400ms; }
.hero-entrance--delay-2 { animation-delay: 900ms; }
.hero-entrance--delay-3 { animation-delay: 1400ms; }
.hero-entrance--delay-4 { animation-delay: 1900ms; }
.hero-entrance--delay-5 { animation-delay: 2400ms; }
.hero-entrance--delay-6 { animation-delay: 2900ms; }
.hero-entrance--delay-7 { animation-delay: 3400ms; }
.hero-entrance--delay-8 { animation-delay: 4200ms; }

/* Slower, more dramatic fade for punchline elements */
.hero-entrance--slow { animation-duration: 3000ms; }

@keyframes hero-fade-in {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}


/* ===================
   IMAGE HOVER EFFECTS
   =================== */
.img-zoom {
  overflow: hidden;
}

.img-zoom img {
  transition: transform var(--duration-glacial) var(--ease-out-expo);
}

.img-zoom:hover img {
  transform: scale(1.05);
}

/* Exo Ape-style project hover: image shrinks to reveal video beneath */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  transition:
    inset var(--duration-slow) var(--ease-out-expo),
    width var(--duration-slow) var(--ease-out-expo),
    height var(--duration-slow) var(--ease-out-expo);
}

.img-reveal__video {
  position: absolute;
  inset: 1px;
  width: calc(100% - 2px);
  height: calc(100% - 2px);
  z-index: 1;
  object-fit: cover;
}

@media (hover: hover) {
  .img-reveal:hover .img-reveal__image {
    inset: 1px;
    width: calc(100% - 2px);
    height: calc(100% - 2px);
    z-index: 1;
  }

  .img-reveal:hover .img-reveal__video {
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
  }
}


/* ===================
   FULL-SCREEN MENU ANIMATIONS
   =================== */

/* Menu link entrance stagger (GSAP will handle this,
   but these are the CSS fallback states) */
.menu-link-enter {
  opacity: 0;
  transform: translateY(100%);
}

.menu-link-enter.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}


/* ===================
   KEYFRAME ANIMATIONS
   =================== */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes loading-pulse {
  0% { left: -30%; }
  100% { left: 100%; }
}


/* ===================
   REDUCED MOTION OVERRIDE
   =================== */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-stagger,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  .reveal-clip,
  .reveal-up,
  .hero-entrance {
    opacity: 1;
    transform: none;
    clip-path: none;
    animation: none;
    transition: none;
  }

  .split-text .char,
  .split-words .word,
  .split-lines .line-inner {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .transition-curtain {
    display: none;
  }

  .transition-main {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}