/* ============================================================
   ANIMATIONS — Keyframes, Scroll triggers, Transitions
   ============================================================ */

/* ── Keyframes ──────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%       { box-shadow: 0 0 32px 8px var(--accent-glow); }
}

@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Hero entrance (applied directly on elements) ────────────── */
.hero-anim-1 {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease) 0.05s forwards;
}
.hero-anim-2 {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease) 0.18s forwards;
}
.hero-anim-3 {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease) 0.30s forwards;
}
.hero-anim-4 {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease) 0.42s forwards;
}
.hero-anim-5 {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease) 0.54s forwards;
}

/* ── Scroll-triggered animations ────────────────────────────── */
.anim-fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.anim-fade-in {
  opacity: 0;
  transition: opacity 0.6s var(--ease);
}

.anim-fade-in.is-visible {
  opacity: 1;
}

.anim-scale-in {
  opacity: 0;
  transform: scale(0.97);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* Stagger delays for children */
.anim-stagger > *:nth-child(1) { transition-delay: 0ms; }
.anim-stagger > *:nth-child(2) { transition-delay: 80ms; }
.anim-stagger > *:nth-child(3) { transition-delay: 160ms; }
.anim-stagger > *:nth-child(4) { transition-delay: 240ms; }
.anim-stagger > *:nth-child(5) { transition-delay: 320ms; }
.anim-stagger > *:nth-child(6) { transition-delay: 400ms; }

/* ── Hover utilities ─────────────────────────────────────────── */
.hover-lift {
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.hover-lift:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ── Shimmer badge ───────────────────────────────────────────── */
.shimmer-text {
  background: linear-gradient(
    90deg,
    var(--text-1) 25%,
    var(--text-0) 50%,
    var(--text-1) 75%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 2.5s linear infinite;
}

/* ── Reduce motion ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-anim-1,
  .hero-anim-2,
  .hero-anim-3,
  .hero-anim-4,
  .hero-anim-5 {
    opacity: 1;
    animation: none;
  }
  .anim-fade-up,
  .anim-fade-in,
  .anim-scale-in {
    opacity: 1;
    transform: none;
  }
}