/* ==========================================================================
   Keyframes
   ========================================================================== */

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

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 16px rgba(76, 175, 80, 0.3); }
  50%      { box-shadow: 0 4px 24px rgba(76, 175, 80, 0.5); }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(var(--reveal-distance));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes star-pop {
  0%   { opacity: 0; transform: scale(0.5); }
  60%  { opacity: 1; transform: scale(1.3); }
  100% { opacity: 1; transform: scale(1); }
}

/* ==========================================================================
   Scroll Reveal
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity var(--transition-reveal) var(--ease-out),
              transform var(--transition-reveal) var(--ease-out);
}

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

/* Slide from left */
.reveal-left {
  opacity: 0;
  transform: translateX(calc(-1 * var(--reveal-distance)));
  transition: opacity var(--transition-reveal) var(--ease-out),
              transform var(--transition-reveal) var(--ease-out);
}

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

/* Slide from right */
.reveal-right {
  opacity: 0;
  transform: translateX(var(--reveal-distance));
  transition: opacity var(--transition-reveal) var(--ease-out),
              transform var(--transition-reveal) var(--ease-out);
}

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

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

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

/* Stagger delays */
.stagger-1 { transition-delay: calc(var(--reveal-stagger) * 1); }
.stagger-2 { transition-delay: calc(var(--reveal-stagger) * 2); }
.stagger-3 { transition-delay: calc(var(--reveal-stagger) * 3); }
.stagger-4 { transition-delay: calc(var(--reveal-stagger) * 4); }
.stagger-5 { transition-delay: calc(var(--reveal-stagger) * 5); }
.stagger-6 { transition-delay: calc(var(--reveal-stagger) * 6); }
.stagger-7 { transition-delay: calc(var(--reveal-stagger) * 7); }
.stagger-8 { transition-delay: calc(var(--reveal-stagger) * 8); }

/* Hero-specific entrance animations */
.hero-fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fade-in-up var(--transition-reveal) var(--ease-out) forwards;
}

.hero-fade-in-1 { animation-delay: 200ms; }
.hero-fade-in-2 { animation-delay: 400ms; }
.hero-fade-in-3 { animation-delay: 600ms; }

.hero-slide-right {
  opacity: 0;
  transform: translateX(50px);
  animation: slide-in-right 800ms var(--ease-out) 400ms forwards;
}

/* Float animation for hero phone */
.anim-float {
  animation: float 3s ease-in-out infinite;
}

/* Pulse glow for CTA buttons */
.anim-pulse {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* Scroll indicator bounce */
.anim-bounce {
  animation: bounce-down 1.5s ease-in-out infinite;
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

  .hero-fade-in,
  .hero-slide-right {
    opacity: 1;
    transform: none;
  }
}