/* Reset / basic */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f9f9f9;
  color: #222;
  line-height: 1.6;
}

a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
header {
  background-color: #0d6efd;
  color: white;
  padding: 30px 20px;
  text-align: center;
  border-radius: 0 0 10px 10px;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2.5em;
}

header p {
  font-size: 1.1em;
  margin-top: 10px;
}

/* Sections */
section {
  background: white;
  padding: 20px 25px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

section h2 {
  font-size: 1.5em;
  margin-bottom: 15px;
}

section ul {
  list-style: disc inside;
}

section ul li {
  margin-bottom: 8px;
}

/* Pre blocks */
pre {
  background: #eee;
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
}

/* Footer */
footer {
  text-align: center;
  padding: 15px 0;
  margin-top: 30px;
  font-size: 0.9em;
  color: #555;
}