:root {
  color-scheme: light dark;
  --bg: #f5f7fa;
  --panel: #ffffff;
  --ink: #16212b;
  --muted: #667789;
  --line: #dbe4ec;
  --accent: #1f8f85;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

.page {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 16px 44px rgba(22, 33, 43, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.brand a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
}

h2 {
  margin: 26px 0 8px;
  font-size: 20px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
}

ul {
  padding-left: 22px;
}

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

.notice {
  border-left: 4px solid var(--accent);
  background: rgba(31, 143, 133, 0.08);
  padding: 12px 14px;
  border-radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1519;
    --panel: #151c22;
    --ink: #edf3f7;
    --muted: #a6b4bf;
    --line: #26333d;
    --accent: #39b9a9;
  }
}