:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  --accent: #12715b;
  --surface: #ffffff;
  --ink: #14201d;
  --muted: #53635f;
  --border: #dce7e3;
}

* { box-sizing: border-box; }
body { margin: 0; background: #f5faf8; color: var(--ink); }
header, main, footer { width: min(760px, calc(100% - 32px)); margin-inline: auto; }
header { padding: 48px 0 20px; }
main { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: clamp(24px, 5vw, 48px); box-shadow: 0 16px 48px rgb(25 75 63 / 8%); }
footer { padding: 24px 0 48px; color: var(--muted); }
h1, h2 { line-height: 1.2; }
h1 { margin: 0 0 8px; font-size: clamp(2rem, 8vw, 3.5rem); }
h2 { margin-top: 2rem; }
a { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.muted { color: var(--muted); }
li + li { margin-top: .5rem; }

@media (prefers-color-scheme: dark) {
  :root { --surface: #12201c; --ink: #edf7f3; --muted: #adc2bb; --border: #29413a; --accent: #63d9b9; }
  body { background: #0b1512; }
}