body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
.chat-input-form {
    display: flex;
    align-items: center;
    padding: 10px;
    background-color: #f5f5f5;
    border-top: 1px solid #eee;
}
.chat-input-form input {
    flex-grow: 1;
    border: none;
    outline: none;
    padding: 10px;
    border-radius: 5px;
    font-size: 16px;
    background-color: #fff;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}
.chat-input-form button {
    margin-left: 10px;
    background-color: #1a73e8;
    color: #fff;
    font-size: 16px;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.chat-input-form button:hover {
    background-color: #1465c0;
}
.chat {
    width: 100%;
    max-width: 500px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

.messages {
    max-height: 400px;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.message-text {
    border-radius: 5px;
    padding: 10px;
    word-wrap: break-word;
    line-height: 1.4;
}

.user-message .message-text {
    background-color: #1a73e8;
    color: white;
}

.gpt-message .message-text {
    background-color: #f1f1f1;
    color: #333;
}
#header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #f1f1f1;
    border-bottom: 1px solid #d3d3d3;
}
#chat {
    padding: 20px;
}
.message {
    margin-bottom: 10px;
}

.user-message {
    text-align: right;
}

.gpt-message {
    text-align: left;
}

.message-text {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 4px;
}

.user-message .message-text {
    background-color: #007bff;
    color: #fff;
}

.gpt-message .message-text {
    background-color: #f1f1f1;
    color: #333;
}

<div id="share-modal" class="modal">
    <div class="modal-content">
        <span id="close-modal" class="close">&times;</span>
        <h2>Share Message</h2>
        <textarea id="share-textarea" readonly></textarea>
    </div>
</div>

    Add the following CSS rules to your assets/css/styles.css file:

css

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    border-radius: 4px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

#share-textarea {
    width: 100%;
    min-height: 100px;
    resize: none;
}
/* Add these styles to the styles.css file */
#chat-form {
    display: flex;
    flex-direction: column;
}

#message-input {
    width: 100%;
    height: 80px; /* Adjust this value to increase or decrease the height of the input area */
    resize: vertical; /* Allow resizing the input area vertically */
    padding: 10px;
    font-size: 16px;
    margin-bottom: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}
textarea#share-modal-text {
    width: 100%;
    height: 200px;
    padding: 12px 20px;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
    background-color: #f8f8f8;
    resize: none;
}
.modal-content textarea {
    width: 100%;
    min-height: 200px;
    resize: vertical;
    padding: 10px;
    font-size: 16px;
    margin-bottom: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}
.login-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    background-color: #ffffff;
    border-radius: 5px;
}
.login-container h1 {
    text-align: center;
    margin-bottom: 20px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
}
.form-group input[type="text"], .form-group input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}
.form-group input[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: #1a73e8;
    color: #fff;
    font-size: 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.form-group input[type="submit"]:hover {
    background-color: #1465c0;
}