:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1d1f23;
  --muted: #5b6069;
  --line: #e4e1da;
  --accent: #2f5d50;
  --accent-soft: #e6efe9;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --surface: #1b1f23;
    --text: #e8e6e1;
    --muted: #a3a8b0;
    --line: #2c3238;
    --accent: #8cc4ad;
    --accent-soft: #1f2d28;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem; }

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4rem;
}
.brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 650; letter-spacing: -0.01em; color: var(--text); text-decoration: none;
}
.brand svg { width: 1.6rem; height: 1.6rem; }
nav a { margin-left: 1.1rem; color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }

main { padding: 3rem 0 4rem; }

h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 1rem; }
h2 { font-size: 1.25rem; letter-spacing: -0.01em; margin: 2.4rem 0 0.6rem; }
h3 { font-size: 1.05rem; margin: 1.6rem 0 0.4rem; }
p, ul { margin: 0 0 1rem; }
ul { padding-left: 1.3rem; }
li { margin: 0.25rem 0; }

.lead { font-size: 1.15rem; color: var(--muted); max-width: 38rem; }

.pill {
  display: inline-block; padding: 0.2rem 0.7rem; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 1.2rem;
}

.grid {
  display: grid; gap: 1rem; margin: 2rem 0;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 0.75rem; padding: 1.1rem 1.2rem;
}
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.note {
  background: var(--surface); border: 1px solid var(--line);
  border-left: 4px solid var(--accent); border-radius: 0.5rem;
  padding: 1rem 1.2rem; margin: 1.5rem 0;
}

.meta { color: var(--muted); font-size: 0.95rem; }

footer.site { border-top: 1px solid var(--line); padding: 1.5rem 0 2.5rem; color: var(--muted); font-size: 0.9rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; }
footer.site a { color: var(--muted); }