/* body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

form {
    max-width: 900px;
    margin: auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.inline-form {
    margin-bottom: 15px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #f7f7f7;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"], input[type="email"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
}

button {
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    font-size: 14px;
}

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

#add-author, #add-presenter {
    margin-top: 15px;
    background-color: #28a745;
}

#add-author:hover, #add-presenter:hover {
    background-color: #218838;
}

.remove-author, .remove-presenter {
    background-color: #dc3545;
}

.remove-author:hover, .remove-presenter:hover {
    background-color: #c82333;
}

.section-header {
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.5em;
    border-bottom: 2px solid #007bff;
    padding-bottom: 5px;
    color: #333;
}

input[name^="presentor-"][name$="-DELETE"],
label[for^="id_presentor-"][for$="-DELETE"] {
    display: none;
}

input[name^="authors-"][name$="-DELETE"],
label[for^="id_authors-"][for$="-DELETE"] {
    display: none;
}


input.is-invalid, textarea.is-invalid, select.is-invalid {
    border-color: #dc3545 !important;
    background-color: #f8d7da !important;
}


.invalid-feedback {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 5px;
} */


#id_authors-0-DELETE {
    display: none;
}

#id_presentor-0-DELETE {
    display: none;
}

#id_presenters-0-DELETE {
    display: none;
}