/* ============================================================
   NIVORA v2 — Base
   Fuentes auto-alojadas, reset, superficies del navegador
   (selección, caret, scrollbar, foco) y utilidades.
   ============================================================ */

@font-face { font-family: 'Cabinet Grotesk'; font-weight: 500; font-style: normal; font-display: swap;
  src: url('../../fonts/cabinet-grotesk-500.woff2') format('woff2'); }
@font-face { font-family: 'Cabinet Grotesk'; font-weight: 700; font-style: normal; font-display: swap;
  src: url('../../fonts/cabinet-grotesk-700.woff2') format('woff2'); }
@font-face { font-family: 'Cabinet Grotesk'; font-weight: 800; font-style: normal; font-display: swap;
  src: url('../../fonts/cabinet-grotesk-800.woff2') format('woff2'); }
@font-face { font-family: 'Switzer'; font-weight: 400; font-style: normal; font-display: swap;
  src: url('../../fonts/switzer-400.woff2') format('woff2'); }
@font-face { font-family: 'Switzer'; font-weight: 500; font-style: normal; font-display: swap;
  src: url('../../fonts/switzer-500.woff2') format('woff2'); }
@font-face { font-family: 'Switzer'; font-weight: 600; font-style: normal; font-display: swap;
  src: url('../../fonts/switzer-600.woff2') format('woff2'); }

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--ink);
  scroll-padding-top: 72px;
  hanging-punctuation: first;
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--ink);
  color: var(--on-dark);
  font-family: var(--font-text);
  font-size: var(--fs-body);
  line-height: var(--lh-text);
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* clip, no hidden: hidden rompe position: sticky en iOS (lección v1) */
  overflow-x: clip;
  -webkit-tap-highlight-color: transparent;
}

img, svg, canvas { display: block; max-width: 100%; }
/* `hidden` siempre gana: form.js oculta/muestra bloques con él */
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, ul, ol, figure, fieldset, legend { margin: 0; padding: 0; }
ul, ol { list-style: none; }
fieldset { border: 0; min-width: 0; }
h1, h2, h3 { text-wrap: balance; font-weight: inherit; }
p { text-wrap: pretty; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }

/* ── Superficies del navegador, en la paleta ─────────────── */
::selection { background: var(--blue); color: var(--ivory); }
input, textarea { caret-color: var(--blue); }

html { scrollbar-color: color-mix(in srgb, var(--ivory) 22%, transparent) var(--ink); }
html[data-theme="light"] { scrollbar-color: color-mix(in srgb, var(--black-brand) 26%, transparent) var(--ivory); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--ivory) 20%, var(--ink)); border: 3px solid var(--ink); }
html[data-theme="light"] ::-webkit-scrollbar-track { background: var(--ivory); }
html[data-theme="light"] ::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--black-brand) 26%, var(--ivory)); border-color: var(--ivory); }

/* Foco: nunca se elimina sin reemplazo */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--blue-soft);
  outline-offset: 3px;
}
.on-light :focus-visible,
html[data-theme="light"] :focus-visible { outline-color: var(--blue); }

/* ── Utilidades ─────────────────────────────────────────── */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; border: 0;
}

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

.skip-link {
  position: fixed;
  top: 12px; left: 12px;
  z-index: var(--z-skip);
  padding: 12px 18px;
  background: var(--ivory);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--dur-micro) var(--ease-out);
}
.skip-link:focus-visible { transform: none; }

/* ── El campo (canvas del mosaico) ───────────────────────── */
.field-canvas {
  position: fixed;
  inset: 0 0 auto 0;
  width: 100vw;
  height: 100lvh;
  z-index: var(--z-field);
  pointer-events: none;
  opacity: 0;
  transition: opacity 600ms var(--ease-out);
}
.field-canvas.is-ready { opacity: 1; }

/* Sin WebGL ni JS: la retícula de placas como textura CSS estática,
   para que la página nunca se vea "rota" ni plana. */
.field-static {
  position: fixed;
  inset: 0;
  z-index: var(--z-field);
  pointer-events: none;
  background-color: var(--ink);
  background-image:
    radial-gradient(120% 90% at 78% 30%, color-mix(in srgb, var(--blue) 28%, transparent), transparent 60%),
    linear-gradient(var(--ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink) 1px, transparent 1px),
    linear-gradient(var(--ink-2), var(--ink-2));
  background-size: 100% 100%, var(--cell) var(--cell), var(--cell) var(--cell), 100% 100%;
}
html.has-field .field-static { display: none; }

main, .topbar, .footer { position: relative; z-index: var(--z-content); }