:root {
  --bg: #0b192f;
  --fg: #f5f7fa;
  --accent: #34d399;
  --muted: #7c92b2;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.card {
  width: min(720px, 100%);
  border: 1px solid var(--border);
  background: rgba(11, 25, 47, 0.75);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(12px);
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 5vw, 3rem);
}

.tagline {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.section {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.section h2 {
  margin: 0 0 1rem;
  font-size: 1.3rem;
  color: var(--accent);
}

pre {
  margin: 0;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  background: rgba(3, 12, 27, 0.8);
  border: 1px solid var(--border);
  font-size: 0.95rem;
  overflow-x: auto;
}

code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  color: var(--accent);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}