body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  transition: background-color 0.3s, color 0.3s; /* Smooth transition for theme change */
}

/* Light mode default styles */
body.light-mode {
  background-color: #f0f0f0;
  color: #333;
}

body.light-mode h1 {
  color: #333;
}

body.light-mode #lottery-numbers {
  color: #007bff;
}

body.light-mode button {
  background-color: #007bff;
  color: white;
}

body.light-mode button:hover {
  background-color: #0056b3;
}

/* Dark mode styles */
body.dark-mode {
  background-color: #333;
  color: #f0f0f0;
}

body.dark-mode h1 {
  color: #f0f0f0;
}

body.dark-mode #lottery-numbers {
  color: #66ccff;
}

body.dark-mode button {
  background-color: #66ccff;
  color: #333;
}

body.dark-mode button:hover {
  background-color: #3399cc;
}

/* Common button styles */
button {
  margin-top: 20px;
  padding: 10px 20px;
  font-size: 1.2em;
  cursor: pointer;
  border: none;
  border-radius: 5px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

#theme-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 8px 15px;
    font-size: 1em;
    background-color: #ccc;
    color: #333;
}

#theme-toggle:hover {
    background-color: #bbb;
}