body, input, button, textarea {
    font-family: 'Montserrat', sans-serif;
    /* ... [other global style properties as needed] ... */
}

.app-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 50px;
}
.initial-instruction {
    margin-bottom: 15px;
    /* Style as needed */
}
.logo {
    width: 400px;
    height: 250px;
    margin-bottom: 20px;
}

.chat-area {
    width: 100%;
    height: 500px;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow-y: auto;
    padding: 10px;
    background: #f9f9f9;
    margin-bottom: 10px;
}

textarea.input-message {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    resize: none; /* Disable manual resizing */
}

button {
    padding: 10px 20px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s ease; /* Smooth transition for button */
}

button:hover {
    background-color: #0056b3; /* Darker shade for hover state */
}

.file-upload-container {
    margin-bottom: 20px;
}

.file-upload-label {
    display: inline-block;
    padding: 10px 20px;
    cursor: pointer;
    background-color: #28a745;
    color: white;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.file-upload-label:hover {
    background-color: #218838; /* Darker shade for hover state */
}

.processing {
    color: #555;
    animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.message {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 8px;
}

.user-message {
    background-color: #e6f5ff;
    align-self: flex-end;
    margin-left: 25%;
    margin-right: 20px;
    width: calc(75% - 20px);
}

.bot-message {
    background-color: #fff0f0;
    align-self: flex-start;
    margin-right: 25%;
    width: calc(75% - 10px);
    text-align: left;
}

/* Error message styles */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
}

/* Responsive design adjustments */
@media screen and (max-width: 600px) {
    .chat-area, textarea.input-message, .file-upload-label {
        width: 100%;
    }
    .user-message, .bot-message {
        margin-left: 10px;
        margin-right: 10px;
        width: calc(100% - 20px);
    }
}
.file-upload-label.disabled {
    background-color: #6c757d; /* Gray color for disabled state */
    cursor: default;
}