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

html { color-scheme: light dark; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); }

.skip-link {
  position: absolute;
  left: -999px;
  top: var(--space-1);
}
.skip-link:focus { left: var(--space-2); }

.site-header,
.site-footer,
main {
  width: min(100% - 2 * var(--space-2), var(--measure));
  margin-inline: auto;
}

.site-header { padding-block: var(--space-2); }
.brand { color: inherit; text-decoration: none; font-weight: 600; }

main { flex: 1; padding-block: var(--space-4); }

.eyebrow {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

h1 {
  margin: 0 0 var(--space-2);
  font-size: clamp(2.25rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lead { font-size: 1.25rem; color: var(--color-muted); margin: 0 0 var(--space-2); }

.site-footer {
  padding-block: var(--space-3);
  color: var(--color-muted);
  font-size: 0.9rem;
}