body {
    font-family: sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

#lotto-sets-container {
    margin: 30px 0;
    display: grid;
    gap: 20px;
}

.lotto-set {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 15px;
    border-radius: 8px;
}

.number-container {
    display: flex;
    gap: 5px;
}

.number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
}

.bonus-container {
    text-align: center;
    margin-left: 15px;
}

#generate-btn {
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
}

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

.light-mode .container {
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.light-mode .lotto-set {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
}

.light-mode .number {
    background-color: #eee;
    color: #333;
}

.light-mode .bonus {
    background-color: #ffdddd;
}

.light-mode #generate-btn {
    background-color: #4CAF50;
    color: white;
}

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

.dark-mode .container {
    background-color: #444;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.dark-mode .lotto-set {
    background-color: #555;
    border: 1px solid #666;
}

.dark-mode .number {
    background-color: #666;
    color: #f0f0f0;
}

.dark-mode .bonus {
    background-color: #8B0000;
}

.dark-mode #generate-btn {
    background-color: #5cb85c;
    color: white;
}

.theme-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
}