/* ================================================
   BASE — RESET, TIPOGRAFÍA Y ACCESIBILIDAD
   ================================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding-top: 0;
  background: var(--clr-bg);
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

h1, h2, h3 { font-family: var(--font-serif); }

/* ── Accesibilidad ───────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

:focus-visible {
  outline: 3px solid var(--clr-gold-mid);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100%; left: 16px;
  background: var(--clr-green);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 8px 8px;
  font-size: 14px; font-weight: 700;
  text-decoration: none;
  z-index: 9999;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: 0; }