:root {
  --bg: #f6f8f7;
  --card: #ffffff;
  --text: #1c2421;
  --muted: #5d6b66;
  --brand: #2f8a6c;
  --border: #e2e8e5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111614;
    --card: #1a211e;
    --text: #e8eeeb;
    --muted: #9aa8a2;
    --brand: #5cc39f;
    --border: #2a3430;
  }
}

* { box-sizing: border-box; }

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

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 16px 64px;
}

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.3rem; margin: 36px 0 8px; }
h3 { font-size: 1.05rem; margin: 24px 0 4px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--brand); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px 22px;
  margin: 16px 0;
}

.lang {
  display: flex;
  gap: 8px;
  margin: 16px 0 8px;
}

.lang a {
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9rem;
}

hr { border: 0; border-top: 1px solid var(--border); margin: 48px 0 24px; }

footer { color: var(--muted); font-size: 0.9rem; margin-top: 48px; }