body {
    font-family: Arial, sans-serif;
    background: #f0f8ff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    text-align: center;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    width: 350px;
}

input {
    padding: 10px;
    width: 80%;
    margin-top: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    padding: 10px 20px;
    margin-top: 10px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #45a049;
}

#message {
    margin-top: 10px;
    font-weight: bold;
}

ul {
    list-style-type: none;
    padding: 0;
    max-height: 150px;
    overflow-y: auto;
}