body {
    font-family: Arial, sans-serif;
    padding: 10px;
    max-width: 450px;
    margin: auto;
}

h1 {
    text-align: center;
    font-size: 20px;
}

div.entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

label {
    flex: 1;
    font-size: 16px;
    text-align: left;
    min-width: 120px; /* Fixed width for keys */
    max-width: 120px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis; /* Truncate long keys */
}

input[type="text"] {
    flex: 2;
    font-size: 14px;
    padding: 5px;
    text-align: center;
    min-width: 100px;
}

input[readonly] {
    background-color: #f0f0f0;
    border: 1px solid #ccc;
}

button {
    flex: 1;
    padding: 5px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    min-width: 80px;
}

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

@media (max-width: 600px) {
    body {
        max-width: 350px;
    }
    input[type="text"], button {
        font-size: 13px;
        padding: 4px;
    }
}