:root {
  --bg: #fbf8f3;
  --surface: #ffffff;
  --text: #2a2622;
  --muted: #6b635b;
  --accent: #b5651d;
  --border: #e7e0d6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1a18;
    --surface: #26231f;
    --text: #ece6de;
    --muted: #a99f94;
    --accent: #e39a52;
    --border: #3a352f;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 1.25rem; margin: 2em 0 0.5em; }
h3 { font-size: 1.05rem; margin: 1.5em 0 0.4em; }

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

.meta { color: var(--muted); margin: 0 0 24px; }

.lang-switch {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 16px 0;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

ul, ol { padding-left: 1.3em; }
li { margin: 0.25em 0; }