:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1f2421;
  --muted: #5d6660;
  --line: #e4e2dc;
  --accent: #5e8c6a;
  --accent-ink: #3f6a4b;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141716;
    --surface: #1b1f1d;
    --text: #e9ece9;
    --muted: #a3aca6;
    --line: #2c322f;
    --accent: #7fae8b;
    --accent-ink: #9cc6a7;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header.site {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.7rem;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
}

header.site .name { font-weight: 650; font-size: 1.15rem; }
header.site .sub { color: var(--muted); font-size: 0.9rem; }

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 0.5rem; }
h3 { font-size: 1.02rem; margin: 1.5rem 0 0.25rem; }
p, li { color: var(--text); }
.lead { color: var(--muted); font-size: 1.05rem; margin-top: 0; }
.meta { color: var(--muted); font-size: 0.9rem; }

a { color: var(--accent-ink); text-underline-offset: 0.15em; }

ul { padding-left: 1.25rem; }
li + li { margin-top: 0.35rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 1.1rem 1.25rem;
  margin: 1.25rem 0;
}

.card p:first-child { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.links { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.links a {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  text-decoration: none;
  font-weight: 550;
}

footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}