body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f4fc;
}
.intro-container {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
    max-width: 400px;
    margin: auto;
}
.intro-container h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2em;
}
.intro-container img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 20px;
}
.intro-container label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: #555;
}
.intro-container input[type="date"] {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    width: calc(100% - 22px);
    margin-bottom: 20px;
}
.intro-container button {
    padding: 10px 20px;
    background-color: #4a6fa1;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s;
}
.intro-container button:hover {
    background-color: #3b5998;
}

#loader{
    font-size:25px;
    text-align: center;
}

.chat-container {
    width: 90%;
    max-width: 600px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-bottom: 5px;
    overflow: hidden;
    background-color: #e0e7ef;
}
.chat-header {
    background-color: #4a6fa1;
    color: white;
    padding: 10px;
    text-align: center;
    font-size: 1.25em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.chat-header img {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    margin-right: 10px;
}
.chat-messages {
    padding: 20px;
    height: 300px;
    overflow-y: auto;
    background-color: #ffffff;
    border-bottom: 2px solid #d1d5db;
}
.chat-message {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}
.chat-message img {
    border-radius: 50%;
    width: 30px;
    height: 30px;
    margin-right: 10px;
}
.chat-message .message-content {
    background-color: #f1f5f9;
    padding: 10px;
    border-radius: 8px;
    max-width: 80%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
}
.chat-message .timestamp {
    font-size: 0.75em;
    color: #999;
    position: absolute;
    right: 10px;
    bottom: -18px;
}
.chat-message.user .message-content {
    background-color: #d4e2fc;
    margin-left: auto;
}
.chat-message.user img {
    display: none;
}
.chat-message.bot .message-content {
    background-color: #eef0f4;
}
.chat-input {
    display: flex;
    padding: 15px;
    background-color: #e0e7ef;
}
.chat-input input {
    flex: 1;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    margin-right: 10px;
}
.chat-input button {
    padding: 10px 20px;
    background-color: #4a6fa1;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}