body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 20px;
    background-color: #99e7ed;
    overflow: hidden;
}

h1 {
    color: #4CAF50;
}

#game-container {
    background-color: #fff;
    padding: 20px;
    border: 2px solid #4CAF50;
    display: inline-block;
    margin-top: 20px;
}

input {
    padding: 8px;
    margin-right: 10px;
    width: 60px;
}

button {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

p {
    font-size: 16px;
    color: #333;
}

.spark {
    position: absolute;
    width: 5px;
    height: 5px;
    background: gold;
    border-radius: 50%;
    animation: sparkle 1.5s ease-out forwards;
}

@keyframes sparkle {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(3) translateY(-200px);
        opacity: 0;
    }
}

.loss-background {
    background-color: #ffcccc;
    transition: background-color 0.5s;
}

.win-background {
    background-color: #e6ffee;
    transition: background-color 0.5s;
}