/* ==========================================================================
   BASE — reset, tipografía y accesibilidad global
   ========================================================================== */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  transition: background-color var(--dur-base) ease, color var(--dur-base) ease;
}

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

img {
  height: auto;
}

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

a {
  color: var(--accent-link);
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

[hidden] {
  display: none !important;
}

::selection {
  background: var(--accent-soft);
}

/* ---- Iconos (sprite Lucide) ---- */
.icon {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---- Foco visible solo con teclado ---- */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--accent-link);
  outline-offset: 3px;
  border-radius: 6px;
}

main:focus-visible {
  outline: none;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 200;
  padding: 0.625rem 1rem;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform var(--dur-base) var(--ease-out);
}

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

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

/* ---- Evita ver el inglés un instante cuando el visitante eligió español (fail-safe de 1.2 s) ---- */
.lang-pending body {
  opacity: 0;
  animation: lang-failsafe 0s linear 1.2s forwards;
}

@keyframes lang-failsafe {
  to { opacity: 1; }
}