body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: white;
    text-align: center;
    padding: 50px;
}

.container {
    max-width: 600px;
    margin: auto;
}

.card {
    background: rgba(255,255,255,0.1);
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

input {
    display: block;
    margin: 10px auto;
    padding: 10px;
    width: 80%;
    border-radius: 5px;
    border: none;
}

button {
    padding: 10px 20px;
    background: #00c9ff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background: #92fe9d;
}