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

body {
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

/* Header */
.header {
  background-color: #004080;
  color: white;
  padding: 20px;
  text-align: center;
}

.header h1 {
  font-size: 2em;
}

/* Navigation */
.navbar {
  background-color: #003366;
  padding: 10px;
  text-align: center;
}

.navbar a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
}

.navbar a:hover {
  text-decoration: underline;
}

/* Main Content */
main {
  padding: 20px;
}

/* Footer */
.footer {
  background-color: #003366;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}

/* Buttons */
.theme__btn {
  background-color: #A92700;
  color: white;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 5px;
  display: inline-block;
  margin-top: 10px;
}

.theme__btn:hover {
  background-color: #813822;
}