#nav-conferencia .contenedor-registro {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #F3F3F3;
    border-radius: 8px;
}

#nav-conferencia .title-section {
    border-color: black;
    font-size: 2rem;
    margin-bottom: 20px;
    color: #343a40;
}
.nav-tabs .nav-link {
    color: white !important; 
    background-color: transparent; 
    border: none; 
    font-weight: bold; 
}

    .nav-tabs .nav-link.active {
        color: black !important;
        background-color: white !important; 
        border: none; 
    }

#nav-conferencia input[type="text"],
#nav-conferencia input[type="email"],
#nav-conferencia input[type="tel"],
#nav-conferencia datalist {
    width: 100%;
    padding: 10px;
    height: 50px;
    margin-bottom: 15px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #fff;
    color: #495057;
}

#nav-conferencia select {
    width: 100%;
    height: 50px;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #fff;
    color: #495057;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' fill='none' stroke='%23495057' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 12px;
    padding-right: 30px;
}

    #nav-conferencia select:hover,
    #nav-conferencia select:focus {
        border-color: #80bdff;
        outline: none;
        box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
    }

#nav-conferencia button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 1.2rem;
    cursor: pointer;
}

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

#nav-conferencia .d-flex .col-sm-4,
#nav-conferencia .d-flex .col-sm-3 {
    padding: 0 10px;
    box-sizing: border-box;
}

.nav-tabs .nav-link {
    font-size: 16px;
    color: #495057 !important;
    border: none;
    background-color: transparent;
}

    .nav-tabs .nav-link:hover {
        color: #007bff !important;
        background-color: transparent;
    }

    .nav-tabs .nav-link.active {
        color: #343a40 !important;
        background-color: #e9ecef;
        font-size: 16px;
        border-radius: 4px;
    }

    .nav-tabs .nav-link:not(.active) {
        color: #6c757d !important;
    }

.selection-list div {
    background-color: #fff;
}

@media (max-width: 768px) {
    #nav-conferencia input[type="text"],
    #nav-conferencia input[type="email"],
    #nav-conferencia input[type="tel"],
    #nav-conferencia select {
        font-size: 0.9rem;
    }
}