body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    text-align: center;
}

.lotto-machine {
    background-color: #fff;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.lotto-balls {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.generate-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 16px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: background-color 0.3s ease;
}

.generate-btn:hover {
    background-color: #45a049;
}

lotto-ball {
    --ball-color: #f0f2f5;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle at 20px 20px, var(--ball-color), #a0a0a0);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    margin: 0 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}