:root {
  color-scheme: light dark;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  background: #0f172a;
  color: #e2e8f0;
  padding: 3rem 1.5rem;
}
.container {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 18px;
  padding: 3rem;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.4);
}
h1 {
  font-size: clamp(2.25rem, 5vw, 3rem);
  margin-bottom: 0.75rem;
}
p.lead {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 2rem;
}
section + section {
  margin-top: 2.5rem;
}
h2 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: #93c5fd;
}
pre {
  background: rgba(15, 23, 42, 0.95);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.95rem;
  line-height: 1.6;
  border: 1px solid rgba(148, 163, 184, 0.2);
}
code {
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}
ul {
  list-style: none;
  margin-left: 0;
}
li {
  margin-bottom: 0.75rem;
}
a {
  color: #38bdf8;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}