:root {
  --background-color-light: #fff;
  --text-color-light: #000;
  --button-bg-light: #f0f0f0;
  --button-text-light: #000;
  --number-bg-light: #f0f0f0;

  --background-color-dark: #121212;
  --text-color-dark: #fff;
  --button-bg-dark: #333;
  --button-text-dark: #fff;
  --number-bg-dark: #444;
}

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

body.dark-mode {
  background-color: var(--background-color-dark);
  color: var(--text-color-dark);
}

#theme-switcher {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 10px;
  cursor: pointer;
  border-radius: 5px;
  border: 1px solid #ccc;
  background-color: var(--button-bg-light);
  color: var(--button-text-light);
}

body.dark-mode #theme-switcher {
  background-color: var(--button-bg-dark);
  color: var(--button-text-dark);
  border-color: #555;
}


#generate-lotto-btn {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin-bottom: 20px;
  background-color: var(--button-bg-light);
  color: var(--button-text-light);
}

body.dark-mode #generate-lotto-btn {
    background-color: var(--button-bg-dark);
    color: var(--button-text-dark);
    border-color: #555;
}

#lotto-numbers-container {
  display: flex;
  gap: 10px;
}

.lotto-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--number-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  color: #fff;
}

body.dark-mode .lotto-number {
    background-color: var(--number-bg-dark);
    color: #fff;
}

.lotto-number.color-1 { background-color: #fbc400; }
.lotto-number.color-2 { background-color: #69c8f2; }
.lotto-number.color-3 { background-color: #ff7272; }
.lotto-number.color-4 { background-color: #aaa; }
.lotto-number.color-5 { background-color: #b0d840; }