/* Base — reset & typography mặc định */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-base);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink-700);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 var(--s-4);
  color: var(--ink-900);
  font-weight: 700;
  letter-spacing: var(--ls-tight);
  line-height: 1.2;
}
p { margin: 0 0 var(--s-4); }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; }

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

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--s-5);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--s-8); }
}

.eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--brand-blue);
}

.lead {
  font-size: var(--fs-lead);
  color: var(--ink-500);
  line-height: 1.6;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}