/* ==========================================================================
   Animations — Scroll reveals, keyframes, motion
   ========================================================================== */

/* Scroll reveal base */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 120ms; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 360ms; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 480ms; opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 600ms; opacity: 1; transform: translateY(0); }

/* Fade from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Fade from right */
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Hero stagger (custom delays) */
.hero__headline .reveal-line {
  display: block;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.hero__headline .reveal-line:nth-child(1) { transition-delay: 0.3s; }
.hero__headline .reveal-line:nth-child(2) { transition-delay: 0.6s; }
.hero__headline .reveal-line:nth-child(3) { transition-delay: 0.9s; }

.hero.is-visible .reveal-line {
  opacity: 1;
  transform: translateY(0);
}

.hero__sub {
  opacity: 0;
  transition: opacity 0.6s ease-out 1.2s;
}

.hero.is-visible .hero__sub {
  opacity: 1;
}

.hero__cta {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease-out 1.5s, transform 0.5s ease-out 1.5s;
}

.hero.is-visible .hero__cta {
  opacity: 1;
  transform: translateY(0);
}

/* Graph node floating */
@keyframes float1 {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(3px, -4px); }
  50% { transform: translate(-2px, 3px); }
  75% { transform: translate(4px, 2px); }
}

@keyframes float2 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-4px, 2px); }
  66% { transform: translate(3px, -3px); }
}

@keyframes float3 {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(2px, 4px); }
  75% { transform: translate(-3px, -2px); }
}

.mockup-graph__node:nth-child(1) { animation: float1 10s ease-in-out infinite; }
.mockup-graph__node:nth-child(2) { animation: float2 12s ease-in-out infinite 1s; }
.mockup-graph__node:nth-child(3) { animation: float3 9s ease-in-out infinite 0.5s; }
.mockup-graph__node:nth-child(4) { animation: float1 11s ease-in-out infinite 2s; }
.mockup-graph__node:nth-child(5) { animation: float2 13s ease-in-out infinite 0.3s; }
.mockup-graph__node:nth-child(6) { animation: float3 8s ease-in-out infinite 1.5s; }
.mockup-graph__node:nth-child(7) { animation: float1 14s ease-in-out infinite 0.8s; }
.mockup-graph__node:nth-child(8) { animation: float2 10s ease-in-out infinite 2.5s; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-stagger > *,
  .hero__headline .reveal-line,
  .hero__sub,
  .hero__cta {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .mockup-graph__node {
    animation: none;
  }

  .mockup-editor__cursor {
    animation: none;
    opacity: 1;
  }

  .scroll-indicator {
    animation: none;
    opacity: 0.6;
  }
}