body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    padding: 20px;
}

.container {
    width: 60%;
    margin: auto;
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.2);
}

h2, h3 {
    margin-bottom: 10px;
    color: #333;
}

label {
    display: block;
    font-weight: bold;
    margin-top: 12px;
}

input, select, textarea {
    width: 100%;
    padding: 10px;
    margin-top: 4px;
    border-radius: 5px;
    border: 1px solid #aaa;
}

textarea {
    height: 120px;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 14px;
    background: #0077cc;
    color: white;
    border: none;
    font-size: 18px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #005fa3;
}

.response-box {
    background: #eef;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}



 /*  "certificate_id" => $_POST['certificate_id'], */