body {
    font-family: Arial, sans-serif;
    background: #1a1a2e;
    color: white;
    text-align: center;
    padding: 2em;
}
.container {
    max-width: 500px;
    margin: auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 2em;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}
.input-box {
    margin-top: 1em;
}
input {
    padding: 0.5em;
    font-size: 1em;
    border-radius: 5px;
    border: none;
    margin-right: 10px;
}
button {
    padding: 0.5em 1em;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
button:hover {
    background-color: #45a049;
}
.feedback {
    margin-top: 1em;
    font-size: 1.2em;
}
h1 {
    margin-bottom: 1em;
}
.clues {
    margin-top: 2em;
    font-size: 1.1em;
    text-align: left;
    color: #f1f1f1;
}
.qr-image {
    max-width: 300px;
    margin-top: 2em;
}