body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
}

.money-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.money {
    position: absolute;
    width: 40px; /* Increased size */
    height: 40px; /* Increased size */
    background-image: url('https://emojicdn.elk.sh/💰');
    background-size: contain;
    animation: fall 10s linear infinite;
}

@keyframes fall {
    0% { transform: translateY(-100px) rotate(0deg); }
    100% { transform: translateY(110vh) rotate(720deg); }
}

.container {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 600px;
    margin: 20px 0;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2rem;
}

.options {
    margin-bottom: 20px;
}

.lotto-sets {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.lotto-set {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.lotto-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#generate-btn {
    background-color: #4CAF50;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: 0.3s;
}

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

.spinning {
    animation: spin 0.1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}