/* ============================================================
   animations.css — Keyframes & Motion Utilities
   ============================================================ */

/* ── Keyframes ───────────────────────────────────────────── */
@keyframes twinkle {
  0%, 100% { opacity: 0.08; transform: scale(1); }
  50%       { opacity: 0.80; transform: scale(1.4); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50%       { transform: translateY(-18px) rotate(0.8deg); }
}

@keyframes float-med {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50%       { transform: translateY(-12px) rotate(-0.8deg); }
}

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

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

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

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

@keyframes border-glow {
  0%, 100% {
    border-color: rgba(27, 79, 216, 0.30);
    box-shadow: 0 0 15px rgba(27, 79, 216, 0.15);
  }
  50% {
    border-color: rgba(212, 175, 55, 0.40);
    box-shadow: 0 0 25px rgba(212, 175, 55, 0.18);
  }
}

@keyframes progress-grow {
  from { width: 0; }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(27, 79, 216, 0.5); }
  100% { box-shadow: 0 0 0 30px rgba(27, 79, 216, 0); }
}

/* ── Float Utility Classes ───────────────────────────────── */
.anim-float-slow { animation: float-slow 6s ease-in-out infinite; }
.anim-float-med  { animation: float-med  5s ease-in-out infinite; animation-delay: -2s; }
.anim-float-fast { animation: float-fast 4s ease-in-out infinite; animation-delay: -1s; }

/* ── Spin ─────────────────────────────────────────────────── */
.anim-spin-slow    { animation: spin-slow    12s linear infinite; }
.anim-spin-reverse { animation: spin-reverse 18s linear infinite; }

/* ── Shimmer ─────────────────────────────────────────────── */
.anim-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.07) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2.5s infinite;
}

/* ── Intro Animations (hero) ─────────────────────────────── */
.anim-slide-up   { animation: slide-up  0.9s cubic-bezier(0.4, 0, 0.2, 1) both; }
.anim-slide-left { animation: slide-left 0.9s cubic-bezier(0.4, 0, 0.2, 1) both; }
.anim-fade-in    { animation: fade-in   0.7s ease both; }

/* ── Scroll Reveal ───────────────────────────────────────── */
.reveal,
.reveal-left,
.reveal-right {
  opacity: 0;
  will-change: opacity, transform;
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal       { transform: translateY(28px); }
.reveal-left  { transform: translateX(-28px); }
.reveal-right { transform: translateX(28px); }

.reveal.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible {
  opacity: 1;
  transform: none;
}

/* ── Staggered Delay Helpers ─────────────────────────────── */
.delay-100 { transition-delay: 0.10s; }
.delay-150 { transition-delay: 0.15s; }
.delay-200 { transition-delay: 0.20s; }
.delay-250 { transition-delay: 0.25s; }
.delay-300 { transition-delay: 0.30s; }
.delay-400 { transition-delay: 0.40s; }
.delay-500 { transition-delay: 0.50s; }

/* ── Reduced-Motion Override ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}