:root {
  color-scheme: light dark;
  --bg: #fbfbfa;
  --fg: #1d1d1b;
  --muted: #5c5c58;
  --line: #e2e1dd;
  --accent: #2f5d50;
  --card: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181a;
    --fg: #e8e8e4;
    --muted: #a0a09a;
    --line: #2b2e31;
    --accent: #7fbfa8;
    --card: #1c1f21;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

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

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  max-width: 62rem;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--fg);
  text-decoration: none;
}

nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.94rem; }
nav a:hover { color: var(--accent); }

main { max-width: 62rem; margin: 0 auto; padding: 0 1.5rem 4rem; }

.hero { padding: 4rem 0 3rem; max-width: 42rem; }

h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 4.5vw, 2.7rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.lede { margin: 0; font-size: 1.1rem; color: var(--muted); }

section + section { padding-top: 2.5rem; border-top: 1px solid var(--line); }

h2 {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.25rem;
}

.grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.35rem;
}

.grid h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.grid p { margin: 0; color: var(--muted); font-size: 0.96rem; }

dl { margin: 0; display: grid; gap: 1.25rem; }
dt { font-weight: 600; }
dd { margin: 0.25rem 0 0; color: var(--muted); max-width: 46rem; }

footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem;
}

footer p {
  max-width: 62rem;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.88rem;
}