/* ==========================================================================
   BASE — resets, typography, accessibility defaults
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  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 {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--color-neutral-900);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  min-height: 100svh;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink-900);
  line-height: var(--lh-heading);
  font-weight: 600;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-xl); }

p { text-wrap: pretty; }

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { color: var(--color-primary-600); }

ul, ol { padding-left: 1.25em; }

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

table { border-collapse: collapse; width: 100%; }

/* Visible focus for every interactive element — never suppressed */
:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink-900);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

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

::selection {
  background: var(--color-accent-100);
  color: var(--color-ink-900);
}