/* ==========================================================================
   Keyframe Animations & Scroll-triggered Transitions
   ========================================================================== */

/* ── Scroll Reveal Base States ── */
/* Elements start hidden, JS adds .revealed when in viewport */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Variants */
.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Bloom — scale + glow */
.reveal-bloom {
  opacity: 0;
  transform: scale(0.92);
  filter: blur(4px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out),
              filter var(--duration-slower) var(--ease-out);
}

.reveal-bloom.revealed {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* ── Stagger Delays for Children ── */
.stagger > *:nth-child(1)  { transition-delay: 0ms; }
.stagger > *:nth-child(2)  { transition-delay: 100ms; }
.stagger > *:nth-child(3)  { transition-delay: 200ms; }
.stagger > *:nth-child(4)  { transition-delay: 300ms; }
.stagger > *:nth-child(5)  { transition-delay: 400ms; }
.stagger > *:nth-child(6)  { transition-delay: 500ms; }
.stagger > *:nth-child(7)  { transition-delay: 600ms; }
.stagger > *:nth-child(8)  { transition-delay: 700ms; }

/* ── Hero Entry Animations ── */
@keyframes hero-fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-animate {
  opacity: 0;
  animation: hero-fade-up 0.8s var(--ease-out) forwards;
}

.hero-animate:nth-child(1) { animation-delay: 0.1s; }
.hero-animate:nth-child(2) { animation-delay: 0.25s; }
.hero-animate:nth-child(3) { animation-delay: 0.4s; }
.hero-animate:nth-child(4) { animation-delay: 0.55s; }
.hero-animate:nth-child(5) { animation-delay: 0.7s; }

/* ── Floating animation for decorative elements ── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.float {
  animation: float 6s ease-in-out infinite;
}

/* ── Gentle glow pulse ── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: var(--glow-sm); }
  50%      { box-shadow: var(--glow-md); }
}

/* ── Spin for loading or icons ── */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ── Prefers Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-scale,
  .reveal-left,
  .reveal-right,
  .reveal-bloom {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .hero-animate {
    opacity: 1;
    animation: none;
  }

  .float {
    animation: none;
  }

  .arch-arrow.lit .arch-arrow-pulse {
    animation: none;
    opacity: 0;
  }

  .cta-btn-wrapper::before {
    animation: none;
  }

  .cta-rays::before,
  .cta-rays::after {
    animation: none;
  }

  .bracket {
    animation: none;
    opacity: 0.3;
  }

  .hero-bg::after {
    animation: none;
  }

  .badge-dot {
    animation: none;
  }
}