:root {
  color-scheme: light;
  --background: #f5f7f4;
  --surface: #ffffff;
  --surface-strong: #edf3ee;
  --text: #183228;
  --text-muted: #52665d;
  --border: #cfdad2;
  --primary: #176b4c;
  --primary-strong: #0e4f37;
  --focus: #d97706;
  --max-width: 760px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: var(--background);
}

a {
  color: var(--primary-strong);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible {
  border-radius: 0.2rem;
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.site-header__inner,
.site-footer__inner,
main {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding-inline: 0.25rem;
  font-size: 0.94rem;
}

main {
  padding-block: clamp(2rem, 6vw, 4.5rem);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2rem, 7vw, 3.6rem);
  letter-spacing: -0.04em;
}

h2 {
  margin-top: 2.25rem;
  margin-bottom: 0.65rem;
  font-size: clamp(1.25rem, 3vw, 1.55rem);
}

p,
li {
  color: var(--text-muted);
}

.lead {
  max-width: 64ch;
  margin-block: 1rem 0;
  font-size: 1.1rem;
}

.updated {
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.document {
  margin-top: 2.25rem;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
}

.document > :first-child {
  margin-top: 0;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 2.25rem 0 0;
  list-style: none;
}

.link-grid a {
  display: block;
  min-height: 100%;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--surface);
  font-weight: 750;
  text-decoration: none;
}

.link-grid a:hover {
  border-color: var(--primary);
  background: var(--surface-strong);
}

.steps li + li {
  margin-top: 0.75rem;
}

.notice {
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--primary);
  background: var(--surface-strong);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.site-footer__inner {
  padding-block: 1.25rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.88rem;
}

@media (max-width: 640px) {
  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .link-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}