body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.container {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 400px;
}

h1 {
    color: #667eea;
    margin-bottom: 20px;
}

p {
    color: #555;
    margin-bottom: 20px;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: transform 0.2s;
}

button:hover {
    transform: scale(1.05);
}

#result {
    margin-top: 20px;
    font-size: 18px;
    color: #333;
    min-height: 30px;
}