utils/styles.py

import streamlit as st

def load_css():
    st.markdown("""
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap" rel="stylesheet">

<style>

/* to keep it black color even in light mode */
/* app background */
.stApp {
    background-color: #0B1220;
    color: #FFFFFF;
}

/* sidebar panel */
[data-testid="stSidebar"] {
    background-color: #232734;
}

/* sidebar content area */
[data-testid="stSidebar"] > div:first-child {
    background-color: #232734;
}

/* sidebar text */
[data-testid="stSidebar"] * {
    color: #E5E7EB;
}

/* selected page item */
[data-testid="stSidebarNav"] li[aria-current="page"] a,
[data-testid="stSidebarNav"] li[aria-current="page"] span {
    background-color: #3A4052;
    color: #FFFFFF;
    border-radius: 10px;
}

/* other sidebar links */
[data-testid="stSidebarNav"] a,
[data-testid="stSidebarNav"] span {
    color: #D1D5DB;
}

/* hover effect */
[data-testid="stSidebarNav"] a:hover {
    background-color: #2E3445;
    color: #FFFFFF;
    border-radius: 10px;
}

/* adding content for the feature boxes */
.feature_box {
    background: linear-gradient(135deg, #1f4e79 0%, #003366 100%);
    padding: 25px 30px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.4);
    margin-bottom: 20px;
    min-height: auto;
}

/* adding details of the title heading */
.main_title {
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
    font-size: 48px;
    font-weight: bold;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.5);
}

/* adding details of the sub topics for features */
.topic_header {
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
    font-size: 25px;
    font-weight: bold;
    margin-bottom: 10px;
}

/* adding details of the content inside the feature boxes */
.feature_text {
    color: #ffffff;
    font-size: 20px;
    line-height: 1.5;
}

/* adding the positive outcome of the game 75%>*/
.positive_text {
     background-color: rgba(0, 128, 0, 0.15);
     border-left: 6px solid green;
     padding: 15px;
     border-radius: 8px;
     font-size: 20px;
     font-weight: bold;
     margin: 10px 0 20px 0;
}
/* adding the negative outcome of the game 75%<*/
.negative_text {
     background-color: rgba(255, 0, 0, 0.15);
     border-left: 6px solid red;
     padding: 15px;
     border-radius: 8px;
     font-size: 20px;
     font-weight: bold;
    margin: 10px 0 20px 0;
}

</style>
""", unsafe_allow_html=True)