body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #222;
    background-color: #f7f9fc;
}

h1,
h2 {
    color: #042347ff;
}

.content-wrapper {
    display: flex;
    align-items: flex-start;
    margin-top: 30px;
    margin-bottom: 60px;
}

.sidebar {
    background-color: #fff;
    border-right: 2px solid #002147;
    padding: 20px 0;
    width: 260px;
    position: sticky;
    top: 100px;
    height: fit-content;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.sidebar .nav-link {
    color: #002147;
    font-weight: 600;
    border-left: 4px solid transparent;
    padding: 12px 20px;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background-color: #002147;
    color: #fff;
    border-left: 4px solid #002147;
}

.tab-content-area {
    flex: 1;
    padding: 0 40px;
}

.tab-content-area h2 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: #002147;
    font-weight: 700;
}

.tab-content-area p {
    line-height: 1.7;
    font-size: 1rem;
    text-align: justify;
}

.demarcator {
    border-top: 3px solid #002147;
    margin: 40px 0;
    opacity: 0.7;
}

.social-responsibility-intro {
    max-width: 800px;
    margin: auto;
}

@media (max-width: 991px) {
    .content-wrapper {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: relative;
        top: 0;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .sidebar .nav-link {
        flex: 1 0 45%;
        margin: 4px;
        text-align: center;
    }

    .tab-content-area {
        padding: 20px 15px;
    }
}