body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f0f8ff;
    text-align: center;
}

.container {
    padding: 30px;
}

h1 {
    color: #ff6b6b;
}

.card {
    background: white;
    width: 250px;
    margin: 30px auto;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

#letter {
    font-size: 80px;
    color: #4d96ff;
}

#word {
    font-size: 30px;
}

button {
    padding: 15px 40px;
    font-size: 24px;
    border: none;
    border-radius: 12px;
    background: #6bcB77;
    color: white;
}