/* ============================================================
   SUR ENDÉMICO · Base styles + reset
============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--color-forest);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}
a:hover { color: var(--color-clay); }

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

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  padding: 0;
}

ul, ol { margin: 0; padding: 0; list-style: none; }

em { font-style: italic; font-weight: var(--weight-light); }

::selection { background: var(--color-clay); color: var(--color-paper); }

/* Focus visible — accesibilidad */
:focus-visible {
  outline: 2px solid var(--color-clay);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─── CONTAINER ─── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ─── EYEBROW (label uppercase tracking) ─── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--color-gold-deep);
  margin: 0;
}

.eyebrow--light { color: rgba(245, 241, 232, 0.85); }

/* ─── SECTION TITLE ─── */
.section-title {
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: clamp(40px, 6vw, 80px);
  line-height: 1.05;
  letter-spacing: var(--tracking-tight);
  margin: var(--space-4) 0 0;
}

.section-title em {
  font-style: italic;
  font-weight: var(--weight-light);
  color: var(--color-forest);
}

.section-head {
  margin-bottom: var(--space-8);
  max-width: 740px;
}
.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head--narrow { max-width: 560px; }
.section-lede {
  margin: var(--space-5) 0 0;
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
  line-height: var(--leading-normal);
  max-width: 640px;
}

/* ─── REVEAL animation (IntersectionObserver) ─── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── prefers-reduced-motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ─── Scrollbar (sutil) ─── */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-paper); }
::-webkit-scrollbar-thumb { background: rgba(26, 26, 20, 0.20); border-radius: 5px; border: 2px solid var(--color-paper); }
::-webkit-scrollbar-thumb:hover { background: rgba(26, 26, 20, 0.35); }