:root {
  color-scheme: light;
  --ink: #14261d;
  --muted: #5b6d63;
  --green: #159765;
  --green-dark: #0c6f4a;
  --wash: #f2f8f4;
  --line: #dce9e1;
  --white: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--wash);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--green-dark); }

.shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  padding: 28px 0;
}

.brand {
  color: var(--ink);
  font-size: 24px;
  font-weight: 800;
  text-decoration: none;
}

nav {
  float: right;
  padding-top: 5px;
}

nav a {
  margin-left: 22px;
  font-weight: 650;
  text-decoration: none;
}

main {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 18px 55px rgba(20, 70, 45, 0.08);
  margin: 18px 0 48px;
  padding: clamp(28px, 6vw, 64px);
}

h1 {
  font-size: clamp(38px, 7vw, 64px);
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin: 0 0 24px;
}

.document h1 { font-size: clamp(34px, 6vw, 50px); }
h2 { margin-top: 38px; line-height: 1.25; }
h3 { margin-top: 28px; }
.lead { color: var(--muted); font-size: 21px; max-width: 660px; }
.eyebrow { color: var(--green); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.button {
  display: inline-block;
  background: var(--green);
  border-radius: 999px;
  color: white;
  font-weight: 750;
  margin-top: 16px;
  padding: 12px 20px;
  text-decoration: none;
}
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 42px; }
.card { border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.card h2 { font-size: 20px; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; }
.updated { color: var(--muted); font-size: 15px; margin-bottom: 36px; }
.notice { background: var(--wash); border-left: 4px solid var(--green); border-radius: 8px; padding: 14px 18px; }
footer { color: var(--muted); font-size: 14px; padding: 0 0 40px; text-align: center; }

@media (max-width: 560px) {
  header { padding: 20px 0; }
  nav { float: none; margin-top: 10px; }
  nav a { margin: 0 18px 0 0; }
  main { border-radius: 18px; }
}