/*
   ==========================================================================
   BASE — reset, tipografía base y utilidades de layout compartidas
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin: 0 0 0.5em;
  font-weight: 600;
  line-height: 1.1;
  text-wrap: balance;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; color: var(--color-text-muted); }
p:last-child { margin-bottom: 0; }

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

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

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

:focus-visible {
  outline: 2.5px solid var(--color-accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   UTILIDADES DE LAYOUT — reutilizables en cualquier sección nueva
   -------------------------------------------------------------------------- */
.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

section { padding: var(--space-section) 0; }

/* Modificadores de fondo: se combinan con cualquier <section> */
.section--alt { background-color: var(--color-bg-alt); }
.section--dark {
  background-color: var(--color-bg-ink);
  color: var(--color-text-light);
}
.section--dark h2, .section--dark h3 { color: var(--color-text-light); }
.section--dark p { color: var(--color-text-light-muted); }
.section--dark .eyebrow { color: var(--color-highlight); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-secondary);
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: currentColor;
}

.section-head {
  max-width: 640px;
  margin-bottom: 3rem;
}

/* Utilidad genérica de aparición al hacer scroll: el elemento arranca
   invisible/desenfocado y un IntersectionObserver (script inline de cada
   vista que lo use) agrega .is-visible una sola vez cuando entra en
   pantalla. */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition: opacity 0.9s ease, transform 0.9s ease, filter 0.9s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; filter: none; transition: none; }
}

.section-head p { font-size: var(--fs-lead); }

/* --------------------------------------------------------------------------
   ACCESIBILIDAD — preferencia de movimiento reducido, global
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}