/* ==========================================================================
   base.css — reset, element defaults, accessibility helpers.
   Shared by every page. No classes for specific sections live here.
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 8px);   /* anchors clear the sticky header */
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--color-ink);
  text-wrap: balance;
}
h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p  { margin: 0 0 var(--space-4); text-wrap: pretty; }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }
li + li { margin-top: var(--space-2); }

a {
  color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}
a:hover { color: var(--link-hover); }

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 3px;
}

address { font-style: normal; }
blockquote { margin: 0; }
figure { margin: 0; }

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 200;
  padding: var(--space-3) var(--space-4);
  background: var(--color-ink);
  color: var(--color-cream);
  border-radius: var(--radius-sm);
  transition: top 0.15s ease;
}
.skip-link:focus { top: var(--space-3); color: var(--color-cream); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}