:root {
  color-scheme: light dark;
  --background: #f4fbf9;
  --surface: #ffffff;
  --text: #17211f;
  --secondary: #5b6966;
  --accent: #278b80;
  --border: #dce9e5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 48px auto;
  padding: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 18px 48px rgb(27 70 62 / 8%);
}

h1,
h2,
h3 {
  line-height: 1.3;
}

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 7vw, 3rem);
}

h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

h3 {
  margin-top: 1.8rem;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.eyebrow,
.effective-date,
.lede {
  color: var(--secondary);
}

.eyebrow {
  margin-bottom: 0.25rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.links {
  display: grid;
  gap: 12px;
  margin: 32px 0;
}

.links a {
  display: block;
  padding: 16px 18px;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 14px;
  font-weight: 700;
  text-decoration: none;
}

nav {
  margin-bottom: 28px;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--secondary);
  font-size: 0.92rem;
}

@media (max-width: 600px) {
  main {
    width: 100%;
    margin: 0;
    padding: 28px 20px 40px;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #101715;
    --surface: #18211f;
    --text: #edf6f3;
    --secondary: #a9b8b4;
    --accent: #70cfc2;
    --border: #2c3a37;
  }
}