/* ═══════════════════════════════════════════
   Scroll Animations & Transitions
   ═══════════════════════════════════════════ */

/* ── Reveal on Scroll ── */
:where(body.js-animations) .reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Directional variants */
.reveal--left {
  transform: translateX(-40px) translateY(0);
}
.reveal--left.reveal--visible {
  transform: translateX(0) translateY(0);
}

.reveal--right {
  transform: translateX(40px) translateY(0);
}
.reveal--right.reveal--visible {
  transform: translateX(0) translateY(0);
}

.reveal--scale {
  transform: scale(0.95) translateY(20px);
}
.reveal--scale.reveal--visible {
  transform: scale(1) translateY(0);
}

/* Stagger delays */
.reveal--d1 { transition-delay: 0.1s; }
.reveal--d2 { transition-delay: 0.2s; }
.reveal--d3 { transition-delay: 0.3s; }
.reveal--d4 { transition-delay: 0.4s; }
.reveal--d5 { transition-delay: 0.5s; }

/* ── Text Reveal ── */
.text-reveal {
  overflow: hidden;
  display: inline-block;
}

.text-reveal__inner {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 0.7s var(--ease-out);
}

.text-reveal--visible .text-reveal__inner {
  transform: translateY(0);
}

/* ── Image Reveal ── */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  inset: 0;
  background: var(--black);
  z-index: 2;
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 0.8s var(--ease-in-out);
}

.img-reveal--visible::before {
  transform: scaleX(0);
}

.img-reveal__content {
  transform: scale(1.2);
  transition: transform 1.2s var(--ease-out);
}

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

/* ── Line Draw ── */
.line-draw {
  height: 1px;
  background: var(--gray-800);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s var(--ease-out);
}

.line-draw--visible {
  transform: scaleX(1);
}

/* ── Fade Variants ── */
.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}
.fade-in--visible {
  opacity: 1;
}

/* ── Counter Animation (via JS) ── */
.counter {
  transition: none;
}

/* ── Parallax (managed by JS) ── */
.parallax {
  will-change: transform;
}

/* ── Hero specific ── */
:where(body.js-animations) .hero-title-line {
  opacity: 0;
  transform: translateY(60px);
}

.hero-title-line--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s var(--ease-out), transform 1s var(--ease-out);
}

:where(body.js-animations) .hero-subtitle {
  opacity: 0;
  transform: translateY(30px);
}

.hero-subtitle--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease 0.6s, transform 0.8s var(--ease-out) 0.6s;
}

:where(body.js-animations) .hero-cta {
  opacity: 0;
  transform: translateY(20px);
}

.hero-cta--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.6s var(--ease-out);
}

.hero-cta--visible:nth-child(1) { transition-delay: 0.8s; }
.hero-cta--visible:nth-child(2) { transition-delay: 0.9s; }
.hero-cta--visible:nth-child(3) { transition-delay: 1.0s; }

:where(body.js-animations) .hero-scroll {
  opacity: 0;
  transition: opacity 0.6s ease 1.3s;
}

.hero-scroll--visible {
  opacity: 1;
}

/* ── Hide content until loader finishes (pure CSS, no JS dependency) ── */
.loader:not(.loader--hidden) ~ .header,
.loader:not(.loader--hidden) ~ .page-content,
.loader:not(.loader--hidden) ~ main,
.loader:not(.loader--hidden) ~ .page-transition {
  opacity: 0 !important;
  animation: none !important;
}

/* ── Page transition ── */
.page-content {
  animation: pageEnter 0.6s var(--ease-out) forwards;
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Hover lift ── */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out);
}
.hover-lift:hover {
  transform: translateY(-4px);
}