/* ============================================================
   STAAD HOME — Base (reset + tipografia + elementos)
   Regla de oro: usa SIEMPRE los tokens. Nada de numeros sueltos.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

body {
  min-height: 100vh;
  background-color: var(--c-bg);
  background-image: var(--noise);
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 300;
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip; /* sin scroll horizontal accidental (no rompe el sticky) */
}

/* Barra de scroll: literalmente una linea. Fina, negra, sin pista ni esquinas. */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--c-ink) transparent;
}
::-webkit-scrollbar { width: 3px; height: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-ink); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--c-ink); }
::-webkit-scrollbar-corner { background: transparent; }

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

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

/* iOS hace zoom al enfocar inputs con letra menor a 16px: lo evitamos en movil */
@media (max-width: 820px) {
  input[type="text"], input[type="email"], input[type="tel"], input[type="search"],
  input[type="password"], input[type="number"], textarea, select {
    font-size: 16px;
  }
}

/* Sin destello azul al tocar en movil */
a, button, [role="button"], input, label, summary {
  -webkit-tap-highlight-color: transparent;
}

a { color: inherit; text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--c-accent); }

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 400;
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { max-width: 68ch; }

/* ---------- Utilidades ---------- */
.container      { width: var(--container);      margin-inline: auto; }
.container-wide { width: var(--container-wide); margin-inline: auto; }

.section { padding-block: var(--space-xl); }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 300;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--c-ink-soft);
}

.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;
}

/* Accesibilidad: respeta a quien prefiere menos movimiento */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}