:root {
  --bg: #f7f8f4;
  --surface: #ffffff;
  --ink: #172019;
  --muted: #566157;
  --brand: #234b36;
  --brand-2: #dfe9df;
  --line: #d8dfd7;
  --warn: #fff8e8;
  --warn-line: #e9d49e;
  --max: 760px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
a { color: var(--brand); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
.site-header {
  background: var(--brand);
  color: white;
  padding: 18px 20px;
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 760; letter-spacing: .02em; font-size: 1.1rem; color: white; text-decoration: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: .94rem; }
.nav-links a { color: white; text-decoration: none; opacity: .92; }
main { max-width: var(--max); margin: 0 auto; padding: 54px 20px 72px; }
.hero { padding: 14px 0 20px; }
.eyebrow { color: var(--brand); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .78rem; }
h1 { font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.08; margin: 12px 0 18px; letter-spacing: -.035em; }
h2 { color: var(--brand); margin-top: 42px; line-height: 1.25; }
h3 { margin-top: 28px; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 660px; }
.button-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.button {
  display: inline-block;
  background: var(--brand);
  color: white;
  text-decoration: none;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid var(--brand);
}
.button.secondary { background: transparent; color: var(--brand); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  margin: 22px 0;
  box-shadow: 0 8px 26px rgba(28, 45, 32, .045);
}
.notice { background: var(--warn); border-color: var(--warn-line); }
.checklist { padding-left: 1.2rem; }
.checklist li { margin: 8px 0; }
.small { color: var(--muted); font-size: .92rem; }
footer { border-top: 1px solid var(--line); padding: 28px 20px 40px; color: var(--muted); }
.footer-inner { max-width: var(--max); margin: 0 auto; display: flex; gap: 14px; justify-content: space-between; flex-wrap: wrap; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.embed-wrap { background: white; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin-top: 24px; }
iframe { width: 100%; min-height: 900px; border: 0; display: block; background: white; }
code { background: #edf1ec; padding: .12rem .35rem; border-radius: 5px; }
@media (max-width: 620px) {
  .nav { align-items: flex-start; flex-direction: column; gap: 10px; }
  main { padding-top: 38px; }
  iframe { min-height: 1050px; }
}