body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    color: #343a40;
    margin: 0;
    padding: 0;
}

.form-section {
    padding: 20px;
    background-color: #ffffff;
}

.form-section .container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    margin: auto;
    max-width: 900px;
}

.form-section .section-header {
    color: #00B0B0;
    margin-top: 20px;
}

.form-section .form-control {
    margin-bottom: 15px;
    border-radius: 10px;
    border: 1px solid #ced4da;
    padding: 10px;
    width: 100%;
}

.form-section .form-group {
    margin-bottom: 15px;
}

.form-section .form-group label {
    margin-bottom: 5px;
}

.form-section .form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.25);
}

.form-section .btn-custom {
    color: #000;
    background-color: #00B0B0;
    border: none;
    border-radius: 10px;
    padding: 10px 20px;
    transition: background-color 0.3s;
}

.form-section .btn-custom:hover {
    background-color: #28c715;
}

.form-section .invalid-feedback {
    display: none;
    color: #dc3545;
    font-size: 0.875em;
}

.form-section .is-invalid + .invalid-feedback {
    display: block;
}

.form-section .is-invalid + .invalid-feedback::before {
    content: '⚠️ ';
    margin-right: 5px;
}

.form-section .submission-message {
    display: none;
    background-color: #28a745;
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    font-size: 1.2em;
    margin-top: 20px;
    opacity: 1;
    transition: opacity 5s ease-in-out;
}

.form-section .submission-message.show {
    display: block;
    opacity: 1;
}

.form-section .submission-message.fade-out {
    opacity: 0;
}