/* =========================================================
   styles.css — Tokens, fuentes, reset, base y layout (mobile-first)
   ========================================================= */

/* ---------- Fuentes autoalojadas (D10) ---------- */
@font-face {
  font-family: "Exo 2";
  src: url("../assets/fonts/exo-2-latin-800-italic.woff2") format("woff2");
  font-weight: 800;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Barlow";
  src: url("../assets/fonts/barlow-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow";
  src: url("../assets/fonts/barlow-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow";
  src: url("../assets/fonts/barlow-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens (paleta del logo) ---------- */
:root {
  --color-navy-950: #010b22;
  --color-navy-900: #021233;   /* fondo del logo */
  --color-navy-800: #0a1f4a;
  --color-navy-700: #14306a;
  --color-accent: #f5c518;     /* amarillo del logo */
  --color-accent-600: #dcae05;
  --color-white: #ffffff;
  --color-gray-50: #f2f4f8;
  --color-gray-200: #dde2ec;
  --color-gray-400: #9aa5bd;
  --color-gray-600: #4d5873;
  --color-text: #0e1a33;
  --color-danger: #d32f2f;        /* errores sobre fondo claro (CU-01 4a) */
  --color-danger-soft: #ff8a80;   /* texto de error sobre fondo oscuro */

  --font-display: "Exo 2", "Arial Black", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-h3: 1.25rem;
  --fs-h2: clamp(2rem, 1.5rem + 2.4vw, 3rem);
  --fs-hero: clamp(2.5rem, 1.6rem + 4.4vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius: 2px;
  --container: 72rem;
  --header-h: 4rem;
  --transition: 200ms ease;
}

@media (min-width: 48em) {
  :root { --header-h: 4.5rem; }
}

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

* { margin: 0; }

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

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

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

a { color: inherit; }

/* :where() deja la especificidad en 0 para que los componentes puedan sobrescribir */
:where(ul[class]) { list-style: none; padding: 0; }

/* ---------- Base ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-style: italic;            /* D10: estilo del logo */
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Compensa el header fijo al navegar por anclas */
[id] { scroll-margin-top: var(--header-h); }

/* Destinos de foco programático (anclas): sin anillo visible */
[tabindex="-1"]:focus { outline: none; }

/* ---------- Utilidades ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 48em) {
  .container { padding-inline: var(--space-8); }
}

.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;
}

.text-accent { color: var(--color-accent); }

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100%;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: var(--color-navy-900);
  font-weight: 700;
  border-radius: var(--radius);
}
.skip-link:focus { top: var(--space-2); }

/* ---------- Secciones ---------- */
.section { padding-block: var(--space-16); }

.section--muted { background-color: var(--color-gray-50); }

.section--dark {
  background-color: var(--color-navy-900);
  color: var(--color-white);
}

@media (min-width: 48em) {
  .section { padding-block: var(--space-20); }
}

.eyebrow {
  margin-bottom: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gray-600);
}
.section--dark .eyebrow { color: var(--color-accent); }

.section__title {
  font-size: var(--fs-h2);
  color: var(--color-navy-900);
  margin-bottom: var(--space-10);
}
.section--dark .section__title { color: var(--color-white); }

/* ---------- Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}