:root {
  color-scheme: light dark;
  --ink: #18352d;
  --muted: #63736d;
  --paper: #f6f1e6;
  --surface: rgba(255, 253, 247, 0.82);
  --line: rgba(24, 53, 45, 0.16);
  --accent: #167a5b;
  --accent-soft: rgba(22, 122, 91, 0.1);
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgba(22, 122, 91, 0.12), transparent 24rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent 32rem),
    var(--paper);
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.shell {
  width: min(100% - 2rem, 48rem);
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--ink);
  font-weight: 650;
  letter-spacing: 0.01em;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
}

main {
  padding: clamp(3.5rem, 10vw, 7rem) 0 5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
  font-weight: 500;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(2.7rem, 9vw, 5.4rem);
  line-height: 0.98;
}

h2 {
  margin: 2.75rem 0 0.75rem;
  font-size: 1.55rem;
}

p,
li {
  font-size: 1rem;
  line-height: 1.72;
}

.lede {
  max-width: 38rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2.4vw, 1.3rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.card {
  margin-top: 2rem;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: 0 1.2rem 3rem rgba(24, 53, 45, 0.06);
}

.document h1 {
  max-width: 18ch;
  font-size: clamp(2.4rem, 7vw, 4rem);
}

.document > p,
.document > ul {
  max-width: 42rem;
}

.meta {
  color: var(--muted);
  font-size: 0.88rem;
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eee9;
    --muted: #a2b0aa;
    --paper: #10231d;
    --surface: rgba(24, 53, 45, 0.72);
    --line: rgba(232, 238, 233, 0.14);
    --accent: #5bc49f;
    --accent-soft: rgba(91, 196, 159, 0.12);
  }
}

@media (max-width: 34rem) {
  header {
    align-items: flex-start;
  }

  nav {
    flex-direction: column;
    gap: 0.45rem;
    text-align: right;
  }
}