:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #17221d;
  background: #f4f8f5;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: #146b4c; }
.shell { width: min(920px, calc(100% - 32px)); margin: 32px auto 64px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #15231c; text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; color: white; background: #183b2c; box-shadow: 0 8px 24px rgba(24,59,44,.18); }
.nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; }
.nav a { color: #567066; text-decoration: none; }
.card { border: 1px solid #dbe7df; border-radius: 24px; background: rgba(255,255,255,.95); box-shadow: 0 22px 70px rgba(31,68,50,.09); padding: clamp(24px, 5vw, 56px); }
.eyebrow { margin: 0 0 10px; color: #287354; font-size: 12px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(32px, 6vw, 52px); letter-spacing: -.045em; line-height: 1.06; }
.meta { margin: 14px 0 30px; color: #667b71; font-size: 14px; }
.summary { padding: 18px 20px; border: 1px solid #cfe3d7; border-radius: 16px; background: #f1f8f4; }
h2 { margin: 34px 0 10px; font-size: 20px; letter-spacing: -.02em; }
h3 { margin: 22px 0 8px; font-size: 16px; }
p, li { color: #35483f; line-height: 1.72; }
li + li { margin-top: 7px; }
code { padding: 2px 6px; border-radius: 6px; background: #edf3ef; }
.contact { margin-top: 34px; padding: 20px; border-radius: 16px; background: #183b2c; color: white; }
.contact p, .contact a { color: white; }
.footer { margin-top: 18px; color: #7c8d85; text-align: center; font-size: 12px; }
@media (max-width: 640px) {
  .shell { margin-top: 18px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .card { border-radius: 18px; }
}