/* Reset + base typography. Mobile-first. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 9rem;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}

h1 { font-size: clamp(1.75rem, 1.35rem + 1.8vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 1.3rem + 0.9vw, var(--text-2xl)); }
h3 { font-size: var(--text-lg); font-weight: 600; }
h4 { font-size: var(--text-base); font-weight: 600; }

p { margin: 0 0 var(--space-4); text-wrap: pretty; }

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--color-link-hover); text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

ul, ol { margin: 0 0 var(--space-4); padding-left: var(--space-6); }

strong { font-weight: 600; }

address { font-style: normal; }

.mono { font-variant-numeric: tabular-nums; }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 640px) {
  .container { padding-inline: var(--space-6); }
}
@media (min-width: 1024px) {
  .container { padding-inline: var(--space-8); }
}

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