:root {
  --brand: #4898d0;
  --ink: #0f172a;
  --muted: #475569;
  --line: #dbe4ee;
  --page: #f8fafc;
  --card: #fff;
  --font: "Roboto", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.55 var(--font);
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 56px;
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  margin-bottom: 32px;
}

header img {
  width: 64px;
  height: 64px;
}

header strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
}

header span {
  display: block;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

header p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 8px;
  font-size: 14px;
}

nav a, article a {
  color: var(--brand);
  font-weight: 650;
}

h1 {
  font-size: 28px;
  margin: 0 0 8px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 28px;
}

article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 28px 8px;
}

h2 {
  font-size: 18px;
  margin: 0 0 8px;
}

p, ul {
  margin: 0 0 20px;
}

ul { padding-left: 20px; }

footer {
  margin-top: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a { color: inherit; font-weight: 650; }