:root {
  color-scheme: light;
  --green: #315f42;
  --green-soft: #edf5ef;
  --text: #18231c;
  --muted: #5f6c64;
  --border: #dce7de;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #f5f8f5;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

header {
  background: linear-gradient(145deg, #284f37, var(--green));
  color: #fff;
  padding: 38px 20px 34px;
}

.header-inner,
main,
footer {
  width: min(100%, 820px);
  margin: 0 auto;
}

.brand {
  color: #d9eadc;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 1.5px;
  text-decoration: none;
}

h1 {
  margin: 10px 0 4px;
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.25;
}

.updated { margin: 0; color: #d9e6dc; }

main {
  margin-top: 22px;
  margin-bottom: 22px;
  padding: 30px clamp(19px, 5vw, 46px) 40px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 38px rgba(31, 70, 45, .07);
}

.summary {
  margin: 0 0 28px;
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--green-soft);
  color: #2d4935;
}

h2 {
  margin: 30px 0 8px;
  color: var(--green);
  font-size: 20px;
  line-height: 1.35;
}

p { margin: 8px 0; }
ul { margin: 8px 0; padding-left: 24px; }
li { margin: 5px 0; }
a { color: var(--green); }

footer {
  padding: 8px 20px 34px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

footer a { margin: 0 8px; }

@media (max-width: 860px) {
  main {
    margin: 0;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }
}