.discussion-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: #1a202c;
    border-radius: 0.5rem;
    color: white;
}

.user-search-container {
    margin-bottom: 2rem;
}

#user-search-input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #4a5568;
    background-color: #2d3748;
    color: white;
    border-radius: 0.5rem;
}

#user-search-results {
    margin-top: 0.5rem;
}

.user-search-result {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    background-color: #2d3748;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
}

.user-search-result a {
    color: white;
    text-decoration: none;
}

#messages-container {
    margin-bottom: 2rem;
    max-height: 500px;
    overflow-y: auto;
}

.message {
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: #2d3748;
    border-radius: 0.5rem;
}

.message-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: #a0aec0;
}

.message-profile-picture {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 0.5rem;
}

.new-message-container {
    display: flex;
}

#message-input {
    flex-grow: 1;
    padding: 0.5rem;
    border: 1px solid #4a5568;
    background-color: #2d3748;
    color: white;
    border-radius: 0.5rem 0 0 0.5rem;
}

#send-button {
    padding: 0.5rem 1rem;
    border: 1px solid #4a5568;
    background-color: #4a5568;
    color: white;
    border-radius: 0 0.5rem 0.5rem 0;
    cursor: pointer;
}