/* ==========================================================================
   Base: reset, tipografía, layout y utilidades
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.65;
  color: var(--text);
  background: var(--cream-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body.is-locked {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--text-strong);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

ul[class],
ol[class] {
  list-style: none;
  padding: 0;
}

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

img {
  height: auto;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--amber-400);
  color: var(--ink-900);
}

/* ---------- Layout ---------- */

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: var(--section-space);
}

.section--cream {
  background: var(--cream-50);
}

.section--white {
  background: var(--white);
}

.section--dark {
  background: var(--ink-900);
  color: var(--text-on-dark-muted);
  isolation: isolate;
  overflow: hidden;
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--text-on-dark);
}

/* ---------- Encabezados de sección ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber-700);
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber-500);
  flex: none;
}

.eyebrow--on-dark {
  color: var(--amber-400);
}

.section-head {
  max-width: 680px;
  margin: 0 auto clamp(2.5rem, 2rem + 2vw, 4rem);
  text-align: center;
}

.section-head--left {
  margin-inline: 0;
  text-align: left;
}

.section-head__title {
  font-size: var(--fs-h2);
  letter-spacing: -0.03em;
}

.section-head__lead {
  margin-top: 1.1rem;
  font-size: var(--fs-lg);
  line-height: 1.6;
  color: var(--text-muted);
}

.section--dark .section-head__lead {
  color: var(--text-on-dark-muted);
}

/* El punto ámbar del logo, usado como cierre de títulos clave. */
.brand-dot {
  color: var(--amber-500);
}

/* ---------- Íconos ---------- */

.icon {
  width: 1.25em;
  height: 1.25em;
  flex: none;
}

.icon-tile {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--cream-100);
  color: var(--ink-900);
  border: 1px solid var(--line-light);
}

.icon-tile .icon {
  width: 22px;
  height: 22px;
}

.icon-tile--dark {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--amber-400);
}

/* ---------- Listas ---------- */

.check-list {
  display: grid;
  gap: 0.7rem;
}

.check-list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.check-list .icon {
  width: 18px;
  height: 18px;
  margin-top: 0.2em;
  padding: 3px;
  border-radius: 50%;
  background: rgba(244, 165, 36, 0.16);
  color: var(--amber-700);
  box-sizing: content-box;
}

.check-list--compact {
  gap: 0.55rem;
  font-size: var(--fs-sm);
}

.check-list--compact .icon {
  width: 14px;
  height: 14px;
}

/* ---------- Utilidades ---------- */

.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;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 200;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--amber-500);
  color: var(--ink-900);
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform var(--dur-fast) var(--ease-out);
}

.skip-link:focus {
  transform: none;
}

/* ---------- Revelado al hacer scroll ----------
   Los elementos solo se ocultan si hay JS (clase .js en <html>) y
   se muestran al entrar en pantalla (assets/js/modules/reveal.js). */

.js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Red de seguridad: si el JS no llega a inicializarse, el contenido aparece igual. */
.js:not(.reveal-ready) [data-reveal] {
  animation: reveal-fallback 0.4s 2.5s forwards;
}

@keyframes reveal-fallback {
  to {
    opacity: 1;
    transform: none;
  }
}

@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;
    transition-delay: 0ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}