/* ============================================================
   YELEF INITIATIVE — Animations
   ============================================================ */

/* ── Keyframes ───────────────────────────────────────────── */
@keyframes kenBurns {
  from { transform: scale(1)   translateX(0)     translateY(0); }
  to   { transform: scale(1.1) translateX(-1.5%) translateY(-1%); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(.88); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(10px); }
}

@keyframes pageOverlayOut {
  from { opacity: 1; }
  to   { opacity: 0; pointer-events: none; }
}

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

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ── Page transition overlay ─────────────────────────────── */
.page-transition-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--dark);
  pointer-events: none;
  animation: pageOverlayOut .5s ease .1s both;
}
.page-transition-overlay.exiting {
  animation: pageOverlayIn .3s ease both;
}

/* ── Hero entrance animations ────────────────────────────── */
.hero-eyebrow-anim {
  animation: fadeUp .7s ease .15s both;
}
.hero-title-anim {
  animation: fadeUp .7s ease .3s both;
}
.hero-lede-anim {
  animation: fadeUp .7s ease .45s both;
}
.hero-ctas-anim {
  animation: fadeUp .7s ease .6s both;
}
.hero-scroll-anim {
  animation: fadeIn .7s ease .9s both;
}

/* ── Page hero (inner pages) ─────────────────────────────── */
.page-hero .eyebrow { animation: fadeUp .6s ease .1s both; }
.page-hero h1       { animation: fadeUp .6s ease .25s both; }
.page-hero .lede    { animation: fadeUp .6s ease .4s both; }

/* ── Scroll reveal base states ───────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.reveal-left  { transform: translateX(-40px); }
.reveal.reveal-right { transform: translateX(40px); }
.reveal.reveal-scale { transform: scale(.92); }
.reveal.reveal-up    { transform: translateY(50px); }

/* ── Revealed state (added by JS) ───────────────────────── */
.reveal.revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* ── Stagger delays (applied by JS on children) ─────────── */
.stagger-children > * { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.stagger-children > *.revealed { opacity: 1; transform: translateY(0); }

/* ── Counter animation ───────────────────────────────────── */
.stat-num.counting {
  display: inline-block;
}

/* ── Impact strip accent line ────────────────────────────── */
.impact-strip .stats-grid .stat {
  position: relative;
  padding: 1.5rem 1rem;
}
.impact-strip .stats-grid .stat::after {
  content: '';
  position: absolute; bottom: -1rem; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 3px;
  background: var(--accent);
  border-radius: 2px;
  transition: width .6s ease;
}
.impact-strip .stats-grid .stat.revealed::after {
  width: 40%;
}

/* ── Card hover glow ─────────────────────────────────────── */
.program-card, .track-card, .team-card, .episode-card {
  position: relative;
}

/* ── Section heading underline animation ────────────────── */
.section-title.underline-animate {
  position: relative; display: inline-block;
}
.section-title.underline-animate::after {
  content: '';
  position: absolute; bottom: -8px; left: 0;
  width: 0; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  border-radius: 2px;
  transition: width .7s ease;
}
.section-title.underline-animate.revealed::after {
  width: 60px;
}

/* ── Timeline step entrance ──────────────────────────────── */
.timeline-step {
  opacity: 0; transform: translateY(20px);
  transition: opacity .5s ease, transform .5s ease;
}
.timeline-step.revealed {
  opacity: 1; transform: translateY(0);
}

/* ── FAQ accordion animation ─────────────────────────────── */
.faq-answer {
  transition: max-height .4s cubic-bezier(.4,0,.2,1), padding .3s ease;
}

/* ── Scroll progress bar (top of page) ──────────────────── */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 9998;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width .1s linear;
}