:root {
  color-scheme: light dark;
  --bg: #f5f6fb;
  --card: #ffffff;
  --text: #1b1c1f;
  --muted: #5b5e66;
  --border: rgba(0, 0, 0, 0.08);
  --accent: #f2731f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1014;
    --card: #16181d;
    --text: #ececf0;
    --muted: #a0a3ad;
    --border: rgba(255, 255, 255, 0.10);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
}

h1 { font-size: 1.7rem; margin: 0 0 4px; }
h2 { font-size: 1.25rem; margin: 32px 0 8px; }
h3 { font-size: 1.02rem; margin: 22px 0 6px; }

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

.updated { color: var(--muted); font-size: 0.9rem; margin: 0 0 8px; }
.lead { color: var(--muted); }
.muted { color: var(--muted); }

hr { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

.lang-nav { margin: 16px 0 0; font-size: 0.95rem; }
.lang-nav a { margin-right: 14px; text-decoration: none; font-weight: 600; }

.home-list { list-style: none; padding: 0; margin: 18px 0 0; }
.home-list li { margin: 0 0 10px; }
.home-list a { font-weight: 600; text-decoration: none; }

footer { color: var(--muted); font-size: 0.85rem; margin-top: 28px; }