/* ==========================================================================
   Base — resets, typography, utility classes
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4, p, figure { margin: 0; }

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  color: inherit;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.015em; }
h3 { font-size: var(--fs-h3); font-weight: 700; letter-spacing: -0.01em; }
h4 { font-size: var(--fs-h4); font-weight: 700; }

p { color: var(--text-secondary); }
.lead { font-size: var(--fs-body-lg); line-height: var(--lh-normal); }

/* Focus states — always visible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--red-600);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--sp-9);
}
.section--tight { padding-block: var(--sp-8); }
.section--dark {
  background: var(--bg-inverse);
  color: var(--text-on-dark);
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 {
  color: var(--white);
}
.section--dark p { color: var(--text-on-dark-muted); }
.section--sunken { background: var(--bg-sunken); }

.grid { display: grid; gap: var(--sp-6); }

/* ---- Type utilities ---- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
  margin-bottom: var(--sp-4);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
}
.section--dark .eyebrow { color: var(--red-500); }

.section-head {
  max-width: 680px;
  margin-bottom: var(--sp-7);
}
.section-head--center { margin-inline: auto; text-align: center; }

.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-balance { text-wrap: balance; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: -60px;
  background: var(--navy-900);
  color: var(--white);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus { top: var(--sp-4); }

/* ---- Divider ---- */
.rule {
  height: 1px;
  background: var(--border-light);
  border: 0;
}
.section--dark .rule { background: var(--border-dark); }