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

.lotto-app {
    background-color: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 90%;
    max-width: 500px;
}

h1 {
    color: #333;
    margin-bottom: 30px;
}

#generate-btn {
    background-color: #4CAF50;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#generate-btn:hover {
    background-color: #45a049;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

#number-display {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.lotto-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Color palette for the lotto numbers */
.lotto-number:nth-child(6n+1) { background-color: #f44336; } /* Red */
.lotto-number:nth-child(6n+2) { background-color: #2196F3; } /* Blue */
.lotto-number:nth-child(6n+3) { background-color: #FFC107; } /* Amber */
.lotto-number:nth-child(6n+4) { background-color: #9C27B0; } /* Purple */
.lotto-number:nth-child(6n+5) { background-color: #009688; } /* Teal */
.lotto-number:nth-child(6n+6) { background-color: #E91E63; } /* Pink */