* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --header-green-color: #36ed22;
    --aboutus-background-green-color: rgb(28, 225, 97);
    --heading-color: #000;
    --primary-color: #2162e3;
    --heading-a-tag-color: #fff;
    --heading-a-tag-hover-color: #212121;
    --all-h2-color: #000;
    --aboutus-strong-color: #000;
    --aboutus-p-tag-color: #201f1f;
    --aboutus-border-color: rgb(28, 225, 97);
    --body-bg-color: rgb(28, 225, 97);
}

.dark-mode {
    --header-green-color: #515251;
    --aboutus-background-green-color: rgb(7, 8, 7);
    --heading-color: #fff;
    --primary-color: #212121;
    --heading-a-tag-color: #f2f3f9;
    --heading-a-tag-hover-color: #36ed22;
    --all-h2-color: #fff;
    --aboutus-strong-color: #36ed22;
    --aboutus-p-tag-color: #fff;
    --aboutus-border-color: rgb(142, 144, 143);
    --body-bg-color: #000;
}

body {
    font-family: Arial, sans-serif;
    background-color:white;
    line-height: 1.6;
    overflow-x: hidden;
}

.brand-logo-name {
    text-decoration: none;
    color: #fff;
    font-size: 1.75rem;
    padding: 5px;
}

a {
    text-decoration: none;
    color: var(--heading-a-tag-color);
    transition: color 0.3s ease;
}

    a:hover {
        color: var(--heading-a-tag-hover-color);
    }

.header {
    padding: 1.6rem 4.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--header-green-color);
    box-shadow: 0px 0px 20px 0px rgba(132, 144, 255, 0.2);
    width: 100%;
    height: 10vh;
}

    .header img {
        height: 30px;
        padding-top: 8px;
    }

.navbar-lists {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

    .navbar-lists li {
        margin-right: 20px;
    }

        .navbar-lists li:last-child {
            margin-right: 0;
        }

.navbar-link {
    color: var(--heading-a-tag-color);
    padding: 10px;
    transition: background-color 0.3s;
}

.icon {
    display: none;
}

.navbar-lists li:nth-child(1) i {
    color: rgb(221, 228, 215);
}

.navbar-lists li:nth-child(2) i {
    color: rgb(33, 105, 239);
}

.navbar-lists li:nth-child(3) i {
    color: rgb(11, 12, 11);
}

.dropdown-content a:nth-child(1) i {
    color: rgb(33, 105, 239);
}

.dropdown-content a:nth-child(2) i {
    color: rgb(15, 223, 36);
}

.dropdown-content a:nth-child(3) i {
    color:white;
}



.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

    .switch input {
        opacity: 0;
        width: 0;
        height: 0;
    }

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
}

    .slider:before {
        position: absolute;
        content: "";
        height: 16px;
        width: 16px;
        left: 4px;
        bottom: 4px;
        background-color: white;
        -webkit-transition: .4s;
        transition: .4s;
    }

input:checked + .slider {
    background-color: #2196F3;
}

input:focus + .slider {
    box-shadow: 0 0 1px #2196F3;
}

input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

    .slider.round:before {
        border-radius: 50%;
    }

@media screen and (max-width: 768px) {
    .icon {
        display: flex;
        position: absolute;
        top: 20px;
        left: 20px;
        z-index: 999;
        color: #fff;
        font-size: 24px;
        cursor: pointer;
        flex-direction: row-reverse;
    }

    .navbar-lists {
        display: flex;
        position: fixed;
        top: 10%;
        left: -100%;
        background-color: var(--header-green-color);
        width: 40%;
        height: 100vh;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        transition: left 0.3s ease;
        z-index: 998;
        padding-left: 40px;
    }

        .navbar-lists.responsive {
            left: 0;
            margin-right: 2rem;
        }

            .navbar-lists.responsive li {
                margin: 10px 0;
            }

    .navbar-link {
        padding: 5px 20px;
        text-align: left;
        width: 100%;
    }

        .navbar-link i {
            display: none;
        }
}



#about-us-section {
    background: var(--aboutus-background-green-color);
    text-align: center;
    width: 100%;
    margin: 0 auto;
    margin-bottom: 3rem;
    padding-bottom: 20px;
    border: 3px solid var(--aboutus-border-color);
    border-radius: 5px;
}

.dark-mode #about-us-section {
    border: none;
}

.about-us-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

h2 {
    color: var(--all-h2-color);
}

.subheading {
    color: var(--aboutus-strong-color);
}

.about-us-container p {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--aboutus-p-tag-color);
    text-align: left;
}

    .about-us-container p:first-of-type {
        margin-top: 0;
    }

    .about-us-container p:last-of-type {
        margin-bottom: 0;
    }

@media screen and (max-width: 768px) {
    .aboutus-heading {
        font-size: 2rem;
    }

    .about-us-container p {
        font-size: 1rem;
    }
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.dark-mode footer {
    background-color: #222;
    border-top: 2px solid #fff;
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

/* Dropdown Button  #a5a5e9;*/

.dropbtn {
    background-color: #a5a5e9;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
}

    .dropbtn:hover {
        background-color: var(--primary-color-hover);
    }


    .dropbtn i {
        margin-left: 5px;
    }

.dropdown-content {
    display: none;
    position: absolute;
    background-color:white;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 1;
    border-radius: 5px;
    top: 100%;
    width: 160px;
    font-size:medium;
    text-align:left;
}

    .dropdown-content a {
        color: black;
        padding: 12px 16px;
        text-decoration: none;
        display: block;
    }

        .dropdown-content a i {
            margin-right: 5px;
        }

        .dropdown-content a:hover {
            background-color: #f1f1f1;
        }

.dropdown:hover .dropdown-content {
    display: block;
}


@media screen and (max-width: 768px) {
    .dropdown {
        display: block;
        margin-bottom: 10px;
    }

    .dropdown-content {
        position: static;
        display: none;
        background-color: transparent;
        box-shadow: none;
        min-width: auto;
        border-radius: 0;
        width: 100%;
        top: initial;
    }

    .dropdown:hover .dropdown-content {
        display: block;
    }

    .dropbtn {
        padding: 10px 20px;
    }

    .dropdown-content a {
        padding: 10px 20px;
    }

        .dropdown-content a i {
            display: none;
        }

    .dropdown:hover .dropdown-content a i {
        display: inline-block;
    }
}