/* Base — resets, element defaults, typography, layout primitives. */

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

* {
  margin: 0;
}

html {
  color-scheme: light;
}

body {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-paper);
  min-height: 100vh;
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: var(--leading-tight);
  color: var(--color-navy);
  font-weight: 600;
  text-wrap: balance;
}

h1 {
  font-size: var(--size-h1);
}

h2 {
  font-size: var(--size-h2);
  line-height: var(--leading-snug);
}

h3 {
  font-size: var(--size-h3);
  line-height: var(--leading-snug);
}

p,
li {
  text-wrap: pretty;
}

a {
  color: inherit;
}

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

button {
  font: inherit;
  cursor: pointer;
}

input,
textarea,
select {
  font: inherit;
}

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

/* Focus visibility — never removed, only restyled */
:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms;
    animation-iteration-count: 1;
    transition-duration: 0.001ms;
    scroll-behavior: auto;
  }
}

/* Layout primitives */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.prose {
  max-width: var(--measure);
}

.prose > * + * {
  margin-top: var(--space-sm);
}

.prose h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xs);
}

.prose h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-2xs);
}

.prose ul,
.prose ol {
  margin-top: var(--space-2xs);
}

.prose li + li {
  margin-top: var(--space-3xs);
}

.section {
  padding-block: var(--space-2xl);
}

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

.section--paper-dim {
  background-color: var(--color-paper-dim);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--text-on-navy);
}

.section--navy h1,
.section--navy h2,
.section--navy h3 {
  color: var(--text-on-navy);
}

.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;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  color: var(--text-on-navy);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
}