*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #000;
  color: #fff;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Плавное появление блоков при скролле — переключается классом .reveal-visible
   через IntersectionObserver в assets/js/reveal.js. */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes hero-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.hero-in {
  animation: hero-in 0.9s ease both;
}
.hero-in-delay-1 {
  animation-delay: 0.15s;
}
.hero-in-delay-2 {
  animation-delay: 0.3s;
}

@keyframes kenburns {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.12);
  }
}
.kenburns {
  animation: kenburns 20s ease-out forwards;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-visible {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hero-in,
  .kenburns {
    animation: none !important;
  }
}