/* ══════════════════════════════════════════════════════════════════
   BASE.CSS — Reset + estilos base globales
   Usa variables de design.css. No hardcodear colores aquí.
══════════════════════════════════════════════════════════════════ */

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-base);
  font-size: var(--text-body);
  font-weight: var(--weight-normal);
  line-height: var(--leading);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'cv11', 'liga' 1;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

/* ── Tipografía base ─────────────────────────────────────────── */
h1 {
  font-size: var(--text-hero);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h2 {
  font-size: var(--text-h2);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  line-height: 1.4;
}

p {
  max-width: var(--prose-max);
}

/* ── Eyebrow (etiqueta de sección) ──────────────────────────── */
.eyebrow {
  display: block;
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 1rem;
}

/* Versión en sección oscura */
.dark .eyebrow,
[data-theme="dark"] .eyebrow {
  color: var(--dark-subtle);
}

/* ── Layout — contenedor ─────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.container--sm {
  max-width: var(--container-sm);
}

/* ── Secciones base ──────────────────────────────────────────── */
.section {
  padding-block: var(--section-pad);
}

.section--light {
  background: var(--bg);
  color: var(--text);
}

.section--dark {
  background: var(--dark-bg);
  color: var(--dark-text);
}

.section--dark-2 {
  background: var(--dark-bg-2);
  color: var(--dark-text);
}

/* ── Header ──────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: 4rem;
  display: flex;
  align-items: center;
  transition: background var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--dark-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-header__logo {
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--dark-text);
  opacity: 0.9;
}

.site-header__logo span {
  color: var(--gold);
}

/* ── Toggle de idioma ─────────────────────────────────────────── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 2rem;
  padding: 0.2rem 0.3rem;
}

.lang-toggle__btn {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.05em;
  padding: 0.25rem 0.625rem;
  border-radius: 1.5rem;
  color: var(--dark-muted);
  transition: all var(--duration) var(--ease);
}

.lang-toggle__btn.active {
  background: var(--accent);
  color: #fff;
}

/* ── Scroll reveal ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--delay-5 { transition-delay: 0.5s; }

/* ── Divider ──────────────────────────────────────────────────── */
.divider {
  width: 3rem;
  height: 2px;
  background: var(--gold);
  margin-block: 1.5rem;
}

/* ── Utilidades ──────────────────────────────────────────────── */
.text-gold  { color: var(--gold); }
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border-width: 0;
}