*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: var(--text-base);
  line-height: 1.6;
  /* No -webkit-font-smoothing: antialiased here. On a dark background it
     thins light text noticeably; the default rendering holds its weight. */
  min-height: 100dvh;
}

input, select, textarea, button {
  background-color: transparent;
  color: var(--fg);
  border-color: var(--border);
  color-scheme: dark;
}

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

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

ul, ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.1;
}

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

/* Hidden visually, still reachable by assistive tech. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}