:root {
  --background: #000000;
  --surface: #111113;
  --border: #26262a;
  --text: #ffffff;
  --text-secondary: #a1a1a6;
  --accent: #d0112b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 20px 72px;
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

header img {
  width: 56px;
  height: 56px;
  border-radius: 13px;
  border: 1px solid var(--border);
}

header strong { display: block; font-size: 20px; }
header span { color: var(--text-secondary); font-size: 15px; }

h1 {
  margin: 0 0 8px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

h1::after {
  content: "";
  display: block;
  width: 36px;
  height: 4px;
  margin-top: 16px;
  border-radius: 2px;
  background: var(--accent);
}

h2 {
  margin: 40px 0 8px;
  font-size: 20px;
}

p, li { color: var(--text-secondary); }
strong { color: var(--text); }
ul { padding-left: 20px; }

a { color: var(--text); text-underline-offset: 3px; }

.updated {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-secondary);
}

.card {
  margin-top: 24px;
  padding: 20px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.card p { margin: 0; }

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
}

footer a { margin-right: 16px; }