:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --button-bg: #eeeeee;
  --button-text: #000000;
  --ball-bg: #f0f0f0;
  --ball-text: #000000;
}

[data-theme='dark'] {
  --bg-color: #1a1a1a;
  --text-color: #f0f0f0;
  --button-bg: #333333;
  --button-text: #ffffff;
  --ball-bg: #444444;
  --ball-text: #ffffff;
}

body {
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

#theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 8px 16px;
  cursor: pointer;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: 1px solid #ccc;
  border-radius: 4px;
}

#generator-button {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  background-color: var(--button-bg);
  color: var(--button-text);
  border: 1px solid #ccc;
  border-radius: 4px;
}

#lotto-numbers {
  display: flex;
  margin-top: 20px;
}

.lotto-number {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--ball-bg);
  color: var(--ball-text);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 5px;
  font-size: 20px;
  border: 1px solid #ccc;
}