/* ==========================================================================
   Animations — Keyframes, Scroll Reveals, Motion
   ========================================================================== */

/* --- Star-field Canvas --- */

#starfield {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* --- Hero Entrance --- */

.hero-anim {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.7s ease forwards;
  animation-delay: calc(var(--i, 0) * 0.12s + 0.2s);
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: none;
  }
}

/* --- Scroll Reveal System --- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal.revealed {
  opacity: 1;
  transform: none;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-left.revealed {
  opacity: 1;
  transform: none;
}

.reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-right.revealed {
  opacity: 1;
  transform: none;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-scale.revealed {
  opacity: 1;
  transform: none;
}

/* --- Reduced Motion --- */

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

  .hero-anim {
    opacity: 1;
    transform: none;
  }

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

  .mock-card {
    animation: none;
  }

  .orbit-dot {
    animation: none;
    display: none;
  }

  #starfield {
    display: none;
  }

  .demo-cursor {
    animation: none;
  }

  .demo-arrow-ring {
    animation: none;
  }
}