/* ==========================================================================
   Base: reset, tipografía, retícula, accesibilidad
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;               /* evita scroll horizontal accidental */
  transition: background-color var(--dur-3) var(--ease-out), color var(--dur-3) var(--ease-out);
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; }
a { color: inherit; }
h1, h2, h3, h4, p, figure, ul, ol, dl, dd { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }

/* --- Tipografía ----------------------------------------------------------- */
.t-mega,
.t-h1,
.t-h2,
.t-h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.t-mega { font-size: var(--fs-mega); line-height: 0.85; letter-spacing: -0.03em; }
.t-h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); }
.t-h2 { font-size: var(--fs-h2); line-height: var(--lh-head); }
.t-h3 { font-size: var(--fs-h3); line-height: 1.15; }
.t-lead { font-size: var(--fs-lead); line-height: 1.45; color: var(--fg); text-wrap: pretty; }
.t-body { color: var(--fg-muted); max-width: 62ch; text-wrap: pretty; }
.t-small { font-size: var(--fs-small); }
.t-label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  line-height: 1.4;
}
.t-muted { color: var(--fg-muted); }
.t-faint { color: var(--fg-faint); }
em, .t-italic { font-style: italic; }

/* --- Retícula ------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--margin);
}
.grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  column-gap: var(--gutter);
}
.grid > * { grid-column: 1 / -1; }

.section { padding-block: var(--s-9); position: relative; }
.rule { border: 0; border-top: var(--hair) solid var(--rule); margin: 0; }

/* --- Accesibilidad -------------------------------------------------------- */
.sr-only {
  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;
  left: var(--s-4); top: var(--s-4);
  z-index: 100;
  padding: var(--s-3) var(--s-4);
  background: var(--ink); color: var(--paper);
  transform: translateY(-200%);
  transition: transform var(--dur-1);
}
.skip-link:focus-visible { transform: none; }

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

::selection { background: var(--accent); color: #fff; }

/* Movimiento reducido: sin desplazamientos ni animaciones largas */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    transition-delay: 0s !important;
    animation-delay: 0s !important;
    scroll-behavior: auto !important;
  }
}
html[data-motion="off"] *, html[data-motion="off"] *::before, html[data-motion="off"] *::after {
  animation-duration: 1ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 1ms !important;
  transition-delay: 0s !important;
  animation-delay: 0s !important;
}