:root {
  --bg: #0f1117;
  --text: #eaeaea;
  --accent: #00d4ff;
  --card-bg: #1c1f26;
  --font: 'Segoe UI', Roboto, sans-serif;
}

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

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  padding: 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.container {
  display: flex;
}

.sidebar {
  width: 250px;
  background-color: var(--card-bg);
  padding: 2rem;
  color: var(--text);
}

.sidebar h2 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--accent);
}

.sidebar ul {
  list-style: none;
}

.sidebar ul li {
  margin: 1rem 0;
}

.sidebar ul li a {
  color: var(--text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.sidebar ul li a:hover {
  color: var(--accent);
}

.content {
  max-width: 900px;
  margin-left: 2rem;
}

.content header {
  margin-bottom: 2rem;
}

.content header h1 {
  font-size: 2.5rem;
  color: var(--accent);
}

.content header p {
  font-size: 1.1rem;
  color: #aaa;
}

.content section {
  margin-bottom: 3rem;
}

.content h2 {
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.content p {
  font-size: 1.1rem;
  color: #ccc;
  line-height: 1.6;
}

.content pre {
  background-color: #1e1e2e;
  padding: 1rem;
  border-radius: 8px;
  font-family: monospace;
  color: #fff;
  margin-top: 1.5rem;
}

footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: #666;
}