import streamlit as st 

st.markdown(
    """
    <style>
    /* App Background */
    .stApp {
        background: linear-gradient(to right , 	#009999, #006666 ,#0099FF); /* Gradient dark professional background */
        color: #9966FF;
        padding: 20px;
    }
    /* Align content to the left */
    .block-container {
        text-align: left; /* Left align for content */
        padding: 2rem; /* Padding for aesthetics */
    }
    
    /* Header and Subheader Text */
    h1 {
        color: #0000FF !important; /* Custom styling for the main header */
        font-family: 'Arial', sans-serif !important;
        font-weight: bold !important;
        text-align: center;
    }
    h2, h3, h4 {
        color: 	#66CCFF !important; /* Custom styling for subheaders */
        font-family: 'Arial', sans-serif !important;
        font-weight: bold !important;
    }
    /* Paragraph Text */
    p {
        color: #00CCCC !important; /* Custom styling for paragraphs */
        font-family: 'Arial', sans-serif !important;
        line-height: 1.6;
    }
    </style>
    """,
    unsafe_allow_html=True
)

# App Content
st.markdown(
    """
    <h1>Natural Language Processing (NLP)</h1>
    <h3>Introduction to NLP</h3>
    <p>
        Natural Language Processing (NLP) is a field of artificial intelligence (AI) that focuses on enabling machines to understand, interpret, and interact with human language in a meaningful way.
        It bridges the gap between human communication and computer understanding, combining elements of linguistics, computer science, and machine learning.
    </p>
    <p>
        Textual data refers to information or data represented in text format, which can include words, sentences, paragraphs, or documents. It is a form of unstructured data, meaning it does not adhere to a predefined schema or format like tabular data.
        Textual data is prevalent in natural language processing (NLP) tasks, where the goal is to extract insights, meaning, or actionable information from text.
    </p>
    
    <h3>Why is NLP Important?</h3>
    <p>
        Natural Language Processing (NLP) is crucial in today’s digital age because it enables machines to understand, interpret, and interact with human language.
        This capability has transformed how humans interact with technology and has a profound impact across industries. . It powers a wide range of applications, including:
    </p>
    <ul>
        <li><b>Language Translation:</b> Tools like Google Translate that break language barriers.</li>
        <li><b>Sentiment Analysis:</b> Understanding emotions and opinions from customer feedback or social media.</li>
        <li><b>Chatbots and Virtual Assistants:</b> AI systems like Alexa and Siri that interact naturally with users.</li>
        <li><b>Text Summarization:</b> Condensing lengthy documents into concise summaries.</li>
    </ul>
    <p>
        <b>Programming Insight:</b> Python is one of the most popular programming languages for NLP, thanks to libraries like <code>NLTK</code>, <code>spaCy</code>, and <code>transformers</code>, which provide powerful tools for text processing and machine learning.
    </p>
    
    <h3>Understanding the NLP Workflow</h3>
    <p>
        The workflow of Natural Language Processing (NLP) involves a series of systematic steps to process and analyze textual data. Here’s a simplified workflow:
    </p>
    <ol>
        <li><b>Input:</b> Raw text or speech data (e.g., customer reviews, transcripts).</li>
        <li><b>Preprocessing:</b> Cleaning and transforming data (e.g., removing stopwords, tokenization).</li>
        <li><b>Feature Extraction:</b> Converting text into machine-readable formats (e.g., word embeddings).</li>
        <li><b>Modeling:</b> Applying algorithms to extract meaning or make predictions.</li>
        <li><b>Output:</b> Structured data, insights, or actions (e.g., sentiment scores, keyword extraction).</li>
    </ol>
    """
    , unsafe_allow_html=True
)