/* ==========================================================================
   BASE — reset, tipografía, utilidades de layout
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: env(safe-area-inset-top);
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }

/* Foco visible accesible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-section);
}
.section--sm { padding-block: var(--space-section-sm); }
.section--alt { background: var(--color-bg-alt); }
.section--dark {
  background: var(--color-primary-strong);
  color: var(--color-cream-100);
}

.section-head {
  max-width: 620px;
  margin-bottom: clamp(2rem, 1.6rem + 2vw, 3.5rem);
}
.section-head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-cta);
}
.section--dark .eyebrow { color: var(--color-accent); }
.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
}

h2.title, .title-2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-top: 0.4em;
  color: var(--color-primary-strong);
}
.section--dark h2.title { color: var(--color-cream-50); }

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-soft);
  margin-top: 1rem;
  max-width: 55ch;
}
.section--dark .lead { color: var(--color-cream-200); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Reveal on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-premium),
              transform var(--dur-slow) var(--ease-premium);
  will-change: transform, opacity;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-base) var(--ease-premium),
              transform var(--dur-base) var(--ease-premium);
}
[data-reveal-stagger].is-visible > * { opacity: 1; transform: translateY(0); }
[data-reveal-stagger].is-visible > *:nth-child(1) { transition-delay: 0.05s; }
[data-reveal-stagger].is-visible > *:nth-child(2) { transition-delay: 0.14s; }
[data-reveal-stagger].is-visible > *:nth-child(3) { transition-delay: 0.23s; }
[data-reveal-stagger].is-visible > *:nth-child(4) { transition-delay: 0.32s; }
[data-reveal-stagger].is-visible > *:nth-child(5) { transition-delay: 0.41s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-stagger] > * { opacity: 1; transform: none; }
}