/* Reset y base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--charcoal);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; margin: 0 0 var(--space-3); color: var(--charcoal); }
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
p { margin: 0 0 var(--space-3); }
p:last-child { margin-bottom: 0; }

/* Foco visible accesible */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 3px solid var(--burgundy-600);
  outline-offset: 2px;
}

/* Utilidades de layout */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-5); }
}

.section { padding-block: var(--space-7); }
.section--tight { padding-block: var(--space-6); }
.section--alt { background: var(--cream-dark); }
.section--dark { background: var(--burgundy-700); color: var(--white); }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-small);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--burgundy-700);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.section--dark .eyebrow { color: var(--burgundy-100); }

.lead { font-size: var(--text-lead); color: var(--charcoal-light); }

.text-center { text-align: center; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--burgundy-700); color: #fff;
  padding: var(--space-2) var(--space-3); z-index: 200; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* Animación discreta de aparición */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* Grid utilities */
.grid { display: grid; gap: var(--space-4); }
@media (min-width: 720px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

main { display: block; }
body { padding-bottom: var(--mobile-bar-height); }
@media (min-width: 860px) {
  body { padding-bottom: 0; }
}