body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.container {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

#clue-container {
    background: #eef2f3;
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
}

.clue-label { font-weight: bold; color: #555; margin-bottom: 5px; }

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box; /* Important for padding */
}

button {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
}

button:hover { background-color: #0056b3; }

button:disabled {
    background-color: #ccc;
    color: #666;
    cursor: not-allowed;
    opacity: 0.7;
}

#message-area { margin-top: 20px; font-weight: bold; }