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

html {
  scroll-behavior: smooth;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  transition: var(--transition-theme);
}

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

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

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

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: #fff;
}

.skip-link:focus {
  left: var(--space-4);
}

.container {
  width: min(1280px, 100% - var(--space-6));
  margin-inline: auto;
}

.container.narrow {
  width: min(720px, 100% - var(--space-6));
}

.container.container--wide {
  width: min(1480px, 100% - var(--space-6));
}

strong {
  font-weight: 600;
}

/* Use .text-gradient--ai only on AI-related headings */
.text-gradient--ai {
  background: var(--ai-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__accent {
  color: var(--accent);
}

main section[id] {
  scroll-margin-top: calc(var(--header-h) + var(--space-3));
}