/* ==========================================================================
   Base — element defaults
   ========================================================================== */

body {
  background-color: var(--color-surface);
  color: var(--color-body);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-loose);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  color: var(--color-teal);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  text-wrap: balance;
}

h1 {
  font-size: var(--text-3xl);
  letter-spacing: var(--tracking-tight);
  text-transform: uppercase;
}

h2 {
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
}

h4 {
  font-size: var(--text-md);
}

p {
  text-wrap: pretty;
}

p + p {
  margin-top: var(--space-sm);
}

a {
  color: var(--color-blue);
  text-decoration-color: color-mix(in srgb, var(--color-blue) 40%, transparent);
  text-underline-offset: 0.2em;
  transition: color var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

a:hover {
  color: var(--color-orange-deep);
  text-decoration-color: currentColor;
}

strong {
  color: var(--color-ink);
  font-weight: var(--weight-bold);
}

::selection {
  background-color: var(--color-teal);
  color: #fff;
}

/* Programmatic focus targets (e.g. the skip-link landing on <main>) should not
   draw a focus ring. */
[tabindex="-1"]:focus {
  outline: none;
}

/* Utility: visually hidden but available to assistive tech */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-2xs) var(--space-sm);
  transform: translateY(-200%);
  background-color: var(--color-teal);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
  color: #fff;
}