/*
  Motion system — inspired by nextai.pro Framer transitions
  Smooth fade-up reveals, soft hover, restrained pulse — no bounce/spin
*/

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

@keyframes bar-rise {
  from { transform: scaleY(0.35); transform-origin: bottom; }
  to { transform: scaleY(1); transform-origin: bottom; }
}

@keyframes float-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Scroll reveal base */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

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

.reveal-stagger > .reveal:nth-child(1) { --reveal-delay: 0ms; }
.reveal-stagger > .reveal:nth-child(2) { --reveal-delay: 90ms; }
.reveal-stagger > .reveal:nth-child(3) { --reveal-delay: 180ms; }
.reveal-stagger > .reveal:nth-child(4) { --reveal-delay: 270ms; }
.reveal-stagger > .reveal:nth-child(5) { --reveal-delay: 360ms; }

/* Hero entrance (on load) */
.hero .reveal-hero {
  opacity: 0;
  animation: fade-up 0.85s var(--ease-out) forwards;
}

.hero .reveal-hero:nth-child(1) { animation-delay: 0.05s; }
.hero .reveal-hero:nth-child(2) { animation-delay: 0.18s; }
.hero .reveal-hero:nth-child(3) { animation-delay: 0.3s; }
.hero .reveal-hero:nth-child(4) { animation-delay: 0.42s; }
.hero .reveal-hero:nth-child(5) { animation-delay: 0.55s; }

.hero-diagram.is-visible .hero-diagram__bars span {
  animation: bar-rise 0.9s var(--ease-out) both;
}

.hero-diagram.is-visible .hero-diagram__bars span:nth-child(1) { animation-delay: 0.1s; }
.hero-diagram.is-visible .hero-diagram__bars span:nth-child(2) { animation-delay: 0.2s; }
.hero-diagram.is-visible .hero-diagram__bars span:nth-child(3) { animation-delay: 0.3s; }
.hero-diagram.is-visible .hero-diagram__bars span:nth-child(4) { animation-delay: 0.4s; }

.tech-visual__float {
  animation: float-soft 5s var(--ease-soft) infinite;
}

/* Interactive hovers */
.btn:active {
  transform: translateY(0) scale(0.98);
}

.pillar,
.segment,
.capability-item {
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

@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;
  }

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

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

  .tech-visual__float {
    animation: none;
  }
}