:root {
  --bg: #0d1117;
  --fg: #e6edf3;
  --accent: #58a6ff;
  --border: #30363d;
  --card-bg: rgba(255, 255, 255, 0.05);
  --font: "Inter", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 2rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2rem;
  color: var(--fg);
}

header p {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

main {
  max-width: 640px;
  width: 100%;
}

section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

p, li {
  font-size: 0.95rem;
}

ul {
  padding-left: 1.2rem;
}

li {
  margin-bottom: 0.3rem;
}

code {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

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

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: auto;
  padding: 1.5rem 0;
  font-size: 0.85rem;
  color: #666;
  text-align: center;
}