:root {
  color-scheme: light;
  --ink: #173d37;
  --muted: #52645f;
  --forest: #167361;
  --mint: #dff3ed;
  --paper: #f7f8f4;
  --white: #ffffff;
  --line: #dbe5e0;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
main { max-width: 820px; margin: 5vh auto; padding: 28px 22px 64px; }
nav { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 32px; }
nav a, a { color: var(--forest); }
h1 { margin: 0 0 12px; font-size: clamp(34px, 7vw, 52px); line-height: 1.1; }
h2 { margin-top: 38px; font-size: 24px; line-height: 1.25; }
h3 { margin-top: 26px; font-size: 19px; }
p, li { color: #294b43; }
.updated { color: var(--muted); margin-bottom: 30px; }
.card {
  margin: 24px 0;
  padding: 20px 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.button {
  display: inline-block;
  padding: 13px 20px;
  border-radius: 14px;
  background: var(--forest);
  color: white;
  font-weight: 700;
  text-decoration: none;
}
.contact-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.contact-row input {
  min-width: 0;
  flex: 1 1 240px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}
button.button { border: 0; font: inherit; cursor: pointer; }
#copy-status { min-height: 1.5em; margin-bottom: 0; }
footer { margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); }
footer a { margin-right: 16px; }
@media (max-width: 600px) { body { font-size: 16px; } main { margin-top: 2vh; } }