body {
    font-family: Arial, sans-serif;
    background-color: #000;
    color: #fff;
    margin: 0;
    padding: 0;
}

header, footer {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}

main {
    padding: 2em;
    display: flex;
    justify-content: space-around;
}

.consultant {
    border: 1px solid #fff;
    margin: 1em;
    padding: 1em;
    width: 30%;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.consultant:hover {
    opacity: 0.7;
}

.consultant.active {
    opacity: 1;
}

.consultant-details {
    display: none;
    background-color: #111;
    padding: 1em;
    margin-top: 1em;
    width: 80%;
    animation: expand 0.5s ease-out forwards;
}

@keyframes expand {
    from {
        max-height: 0;
    }
    to {
        max-height: 500px;
    }
}