:root {
  color-scheme: light;
  --ink: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --bg: #f7f7f4;
  --panel: #ffffff;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0 64px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #111827;
  color: #facc15;
  font-weight: 800;
}

.links {
  display: flex;
  gap: 18px;
  font-size: 15px;
}

.links a {
  color: var(--muted);
  text-decoration: none;
}

.links a:hover {
  color: var(--ink);
}

.hero {
  max-width: 760px;
  margin-bottom: 28px;
}

.eyebrow {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 10px;
}

h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1;
  margin: 0 0 18px;
  letter-spacing: 0;
}

h2 {
  font-size: 24px;
  line-height: 1.2;
  margin: 34px 0 10px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 8px;
}

p,
li {
  color: var(--muted);
  font-size: 17px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.callout {
  border-left: 4px solid var(--accent);
  padding: 10px 0 10px 16px;
  margin: 24px 0;
  color: var(--muted);
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

@media (max-width: 620px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 34px;
  }

  .links {
    flex-wrap: wrap;
  }

  .card {
    padding: 22px;
  }
}