:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07110f;
  color: #edf8f3;
}

* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(circle at top, #15382f 0, #07110f 38rem); }
a { color: #71e5b8; }
.shell { width: min(900px, calc(100% - 32px)); margin: 0 auto; padding: 34px 0 70px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #edf8f3; text-decoration: none; font-weight: 900; letter-spacing: .03em; }
.mark { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: #71e5b8; color: #07110f; }
.hero { padding: 64px 0 34px; }
h1 { max-width: 760px; margin: 0; font-size: clamp(2.3rem, 8vw, 4.8rem); line-height: .98; letter-spacing: -.05em; }
.lede { max-width: 680px; margin: 24px 0 0; color: #b8cbc4; font-size: 1.08rem; line-height: 1.7; }
.meta { margin-top: 18px; color: #8ca49b; font-size: .88rem; }
.nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0 42px; }
.nav a { min-height: 110px; padding: 18px; border: 1px solid #29463d; border-radius: 18px; background: rgba(12, 31, 26, .82); text-decoration: none; font-weight: 800; }
.nav a span { display: block; margin-top: 8px; color: #9bb1a9; font-size: .9rem; font-weight: 500; line-height: 1.5; }
.section { margin: 14px 0; padding: 22px; border: 1px solid #29463d; border-radius: 18px; background: rgba(12, 31, 26, .9); }
.section h2 { margin: 0 0 12px; color: #71e5b8; font-size: 1.08rem; }
.section p { margin: 10px 0 0; color: #d6e5df; line-height: 1.68; white-space: pre-line; }
.toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; margin: 32px 0 10px; }
.toolbar a { text-decoration: none; font-weight: 700; }
footer { margin-top: 42px; padding-top: 22px; border-top: 1px solid #29463d; color: #8ca49b; font-size: .88rem; line-height: 1.6; }
@media (max-width: 650px) {
  .nav { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
}