body {
    background-color: #f8f9fa;
    font-family: 'Arial', sans-serif;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

#home {
    padding: 50px 0;
}

.carousel-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

section {
    padding: 50px 0;
}

#portfolio .card {
    transition: transform 0.3s;
}

#portfolio .card:hover {
    transform: translateY(-5px);
}

#chat-container {
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
}

#chat-messages {
    height: 300px;
    overflow-y: auto;
    padding: 10px;
}

#chat-input {
    display: flex;
    padding: 10px;
    background-color: #f1f1f1;
}

#user-input {
    flex-grow: 1;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

#send-button {
    margin-left: 10px;
    padding: 5px 15px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

footer {
    padding: 20px 0;
}

@media (max-width: 768px) {
    .navbar-nav {
        text-align: center;
    }
}