:root {
  color-scheme: dark;
  --ink: #071916;
  --panel: #102924;
  --text: #effff9;
  --muted: #a9c5bb;
  --mint: #43e0b5;
  --line: #28453c;
}
* { box-sizing: border-box; }
html { background: var(--ink); }
body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(circle at 85% 0%, #174d40 0, transparent 38rem), var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--mint); }
header, main, footer { width: min(760px, calc(100% - 40px)); margin-inline: auto; }
header { padding: 44px 0 24px; display: flex; align-items: center; gap: 16px; }
header img { width: 58px; height: 58px; border-radius: 14px; }
header strong { font-size: 22px; letter-spacing: -.02em; }
nav { margin-left: auto; display: flex; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
main { padding: 36px 0 72px; }
h1 { font-size: clamp(38px, 8vw, 68px); line-height: 1.02; letter-spacing: -.045em; margin: 24px 0; }
h2 { margin-top: 44px; line-height: 1.2; }
h3 { margin-top: 28px; }
p, li { color: var(--muted); }
.lead { font-size: 21px; max-width: 650px; }
.eyebrow { color: var(--mint); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: 12px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 38px 0; }
.card { background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.card h2, .card h3 { margin-top: 0; }
.callout { border-left: 3px solid var(--mint); padding: 4px 18px; margin: 28px 0; }
.button { display: inline-block; padding: 11px 16px; border-radius: 999px; background: var(--mint); color: var(--ink); font-weight: 750; text-decoration: none; }
footer { border-top: 1px solid var(--line); padding: 24px 0 48px; color: var(--muted); font-size: 13px; }
footer a { margin-right: 14px; }
code { color: var(--text); }
@media (max-width: 680px) {
  header { align-items: flex-start; }
  nav { gap: 10px; }
  .grid { grid-template-columns: 1fr; }
}