.jfv-box {
    max-width: 700px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    font-family: Arial;
}

.jfv-box h2 {
    text-align: center;
    color: #54B435;
}

#jfv-input {
    width: 100%;
    height: 180px;
    padding: 10px;
    margin-bottom: 10px;
    font-family: monospace;
}

.jfv-buttons {
    text-align: center;
}

.jfv-buttons button {
    margin: 5px;
    padding: 10px 14px;
    background: #54B435;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.jfv-buttons button:hover {
    background: #FFD600;
    color: black;
}

#jfv-output {
    background: #f4f4f4;
    padding: 10px;
    margin-top: 15px;
    white-space: pre-wrap;
    border-radius: 6px;
}

#jfv-status {
    margin-top: 10px;
    font-weight: bold;
    text-align: center;
}