:root {
  --bg: #f7f8fa;
  --text: #1f2937;
  --muted: #6b7280;
  --card: #ffffff;
  --accent: #0f766e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: linear-gradient(160deg, #f7f8fa, #eef5f5 55%, #e8f2f1);
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header {
  margin-bottom: 1.25rem;
}

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

article,
ul {
  background: var(--card);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

ul {
  list-style: none;
  margin: 0;
}

li + li {
  margin-top: 0.65rem;
}

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

.meta,
small,
footer {
  color: var(--muted);
}

footer {
  margin-top: 2rem;
  font-size: 0.9rem;
}

.content pre {
  overflow: auto;
}