/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

/* ─── Base ───────────────────────────────────────────────── */
html {
  font-size: 18px;
  overflow-x: hidden;
}

body {
  font-family: var(--serif);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--paper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  -webkit-font-smoothing: antialiased;
  font-synthesis: none;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }

/* ─── Skip link ─────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0.75rem;
  z-index: 1000;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper-dark);
  border: 1px solid var(--ink-ghost);
  padding: 0.5rem 0.75rem;
  text-decoration: none;
}

.skip-link:focus-visible {
  top: 0.75rem;
}

/* ─── Keyboard focus visibility ─────────────────────────── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  outline: 2px solid var(--sage);
  outline-offset: 2px;
}