:root {
  color-scheme: light dark;
  --bg: #fbfaf8;
  --panel: #ffffff;
  --ink: #1c1b19;
  --muted: #5f5c56;
  --line: #e3dfd8;
  --accent: #2f5d50;
  --accent-soft: #eef3f1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14150f;
    --panel: #1c1e18;
    --ink: #eceae4;
    --muted: #a3a096;
    --line: #2e3129;
    --accent: #9ec7b3;
    --accent-soft: #232720;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
}

header.site {
  max-width: 40rem;
  margin: 0 auto 2rem;
}

a { color: var(--accent); }
a:hover { text-decoration: none; }

h1 {
  font-size: 1.7rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
}

h2 {
  font-size: 1.12rem;
  margin: 2.1rem 0 0.5rem;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 1rem;
  margin: 1.4rem 0 0.4rem;
}

p, ul, ol { margin: 0 0 1rem; }

ul, ol { padding-left: 1.3rem; }

li { margin-bottom: 0.35rem; }

.lede {
  color: var(--muted);
  font-size: 1.02rem;
}

.back {
  display: inline-block;
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
  color: var(--muted);
  text-decoration: none;
}
.back:hover { color: var(--accent); }

.lang {
  display: inline-block;
  font-size: 0.85rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  margin-bottom: 1.75rem;
}

.card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 0.9rem;
  text-decoration: none;
  color: inherit;
}

.card strong { display: block; font-size: 1.02rem; }

.card span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.2rem;
}

.card:hover { border-color: var(--accent); }

.links {
  margin-top: 0.6rem;
  font-size: 0.92rem;
}
.links a { margin-right: 0.9rem; white-space: nowrap; }

.app {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 0.9rem;
}
.app strong { display: block; font-size: 1.02rem; }
.app p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.92rem; }

.note {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
}
.note p:last-child { margin-bottom: 0; }

footer {
  max-width: 40rem;
  margin: 3rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
footer p { margin: 0 0 0.35rem; }