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

/* Body */
body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

/* Header */
header {
  background: #0078d7;
  color: white;
  text-align: center;
  padding: 20px;
}

/* Main Content */
main {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Paragraph */
p {
  margin: 15px 0;
}

/* Button */
button {
  background: #0078d7;
  color: white;
  border: none;
  padding: 10px 18px;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background: #005fa3;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  margin-top: 30px;
  color: #666;
}