/* =============================================================
   ANIMATIONS.CSS — Keyframes, Scroll Animations, Transitions
   ============================================================= */


/* ── Keyframe Definitions ────────────────────────────────── */
@keyframes gradientShift {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}

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

@keyframes scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.60; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes shimmer {
  0%   { background-position: -1000px 0; }
  100% { background-position:  1000px 0; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ── Scroll-triggered Entrance Animations ────────────────── */

/* Base state — elements start hidden */
.animate {
  opacity: 0;
  transition:
    opacity  0.6s ease,
    transform 0.6s ease;
}

/* Fired state — added by JS IntersectionObserver */
.animate.in {
  opacity: 1 !important;
  transform: none !important;
}

/* Direction variants */
.fade-up    { transform: translateY(40px); }
.fade-left  { transform: translateX(-40px); }
.fade-right { transform: translateX(40px); }
.zoom-in    { transform: scale(0.85); }

/* Stagger delays */
.delay-1 { transition-delay: 0.10s; }
.delay-2 { transition-delay: 0.20s; }
.delay-3 { transition-delay: 0.30s; }
.delay-4 { transition-delay: 0.40s; }
.delay-5 { transition-delay: 0.50s; }
.delay-6 { transition-delay: 0.60s; }


/* ── Floating Elements ───────────────────────────────────── */
.float       { animation: float     6s ease-in-out infinite; }
.float-slow  { animation: floatSlow 8s ease-in-out infinite; }
.float-d1    { animation-delay: 0.5s; }
.float-d2    { animation-delay: 1.0s; }
.float-d3    { animation-delay: 1.5s; }