/* =============================================================================
   BASE · reset ligero, tipografía raíz, utilidades compartidas
   v2: fondo liso --bg-0 (sin retícula, grano, viñeta ni reglas laterales)
   ============================================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: dark; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; color: var(--text-1); background: var(--bg-0);
  font-family: var(--f-text); font-size: var(--fs-body); line-height: 1.5;
  -webkit-font-smoothing: antialiased; overflow-x: clip;
}
::selection { background: var(--ok); color: var(--bg-0); }
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--ok); outline-offset: 2px; }

.mono { font-family: var(--f-mono); font-stretch: var(--mono-stretch); }
.label { font-family: var(--f-mono); font-stretch: var(--mono-stretch); font-size: var(--fs-label); letter-spacing: var(--track-label); text-transform: uppercase; color: var(--text-3); }
.num { font-variant-numeric: tabular-nums lining-nums; }

.link { color: var(--text-1); text-decoration: underline; text-decoration-color: var(--line-3); text-underline-offset: 3px; }
.link:hover { text-decoration-color: var(--ok); }

/* Accesibilidad: salto al contenido y texto solo para lectores de pantalla */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -48px; z-index: 60; padding: 10px 14px; background: var(--ok); color: var(--bg-0); font-family: var(--f-mono); font-size: 12px; }
.skip:focus { top: 8px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
main { overflow-x: clip; }

/* Definiciones SVG fuera de pantalla (símbolo del logo) — sin estilos inline por la CSP */
.logo-defs { position: absolute; }