/* Smartphones (portrait and landscape) ----------- */
    
    @media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
        .filter-section-4 {
            background-color: rgba(255, 255, 255, 0.11);
        }
    }
    /* Smartphones (landscape) ----------- */
    
    @media only screen and (min-width: 321px) {
        /* Styles */
    }
    /* Smartphones (portrait) ----------- */
    
    @media only screen and (max-width: 320px) {
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
        /* Styles */
    }
    /* iPads (portrait and landscape) ----------- */
    
    @media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
        .page-btn {
            top: 75%;
        }
        .page-btn img {
            width: 1.5rem;
        }
        .page-btn {
            top: 75%;
        }
        .page-btn img {
            width: 1.5rem;
        }
        /* Styles */
    }
    /* iPads (landscape) ----------- */
    
    @media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: landscape) {
        /* Styles */
        .page-btn {
            top: 75%;
        }
        .page-btn img {
            width: 1.5rem;
        }
    }
    /* iPads (portrait) ----------- */
    
    @media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: portrait) {
        /* Styles */
        .navbar {
            height: 5rem;
        }
        .nav-link {
            margin: 0;
            font-size: 1rem;
            width: 50%;
            padding: 0.8rem;
        }
        .nav-link h4 {
            font-size: 2rem;
        }
        .section-1-heading {
            font-size: 5rem;
        }
        .section-1-sub-heading {
            font-size: 1rem;
            letter-spacing: 0.3rem;
            width: 100vw;
            text-align: center;
        }
        .page-btn {
            top: 75%;
        }
        .page-btn img {
            width: 1.5rem;
        }
        .filter-section-2 {
            height: 50vh;
        }
        .text-section-2 {
            font-size: 1.3rem;
        }
        .text-section-2 span {
            font-size: 2rem;
        }
        .list-section-3 li {
            padding: 0.5rem;
        }
        .text-section-3 {
            font-size: 1rem;
        }
        .list-section-3 {
            font-size: 1rem;
        }
        .filter-section-3 {
            height: 78vh;
        }
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
        .text-section-4 h3 {
            margin-top: 50%;
        }
        .img-section-4-img {
            opacity: 0.307;
            width: calc(100vw / 1);
            height: auto;
            border-radius: 51%;
        }
        .img-section-4 {
            top: 55%;
        }
    }
    /**********
iPad 3
**********/
    
    @media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: landscape) and (-webkit-min-device-pixel-ratio: 2) {
        .page-btn {
            top: 75%;
        }
        .page-btn img {
            width: 1.5rem;
        }
        /* Styles */
    }
    
    @media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: portrait) and (-webkit-min-device-pixel-ratio: 2) {
        /* Styles */
    }
    /* Desktops and laptops ----------- */
    
    @media only screen and (min-width: 1224px) {
        /* Styles */
        .filter-section-4 {
            width: calc(100vw / 3);
            height: calc(100vw / 3);
            border-radius: 51%;
            background-color: rgba(255, 255, 255, 0.107);
        }
        .img-section-4-img {
            opacity: 0.507;
            width: calc(100vw / 2);
            height: auto;
            border-radius: 51%;
        }
    }
    /* Large screens ----------- */
    
    @media only screen and (min-width: 1824px) {
        /* Styles */
    }
    /* iPhone 4 ----------- */
    
    @media only screen and (min-device-width: 320px) and (max-device-width: 480px) and (orientation: landscape) and (-webkit-min-device-pixel-ratio: 2) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 320px) and (max-device-width: 480px) and (orientation: portrait) and (-webkit-min-device-pixel-ratio: 2) {
        /* Styles */
        .navbar {
            height: 2.8rem;
        }
        .nav-link {
            margin: 0;
            font-size: 0.8rem;
            width: 50%;
            padding: 0.8rem;
        }
        .nav-link h4 {
            font-size: 1.2rem;
        }
        .section-1-heading {
            font-size: 3rem;
        }
        .section-1-sub-heading {
            font-size: 0.5rem;
            letter-spacing: 0.3rem;
            width: 100vw;
            text-align: center;
        }
        .page-btn {
            top: 90%;
        }
        .page-btn img {
            width: 1.5rem;
        }
        .filter-section-2 {
            height: 50vh;
        }
        .text-section-2 {
            font-size: 1.3rem;
        }
        .text-section-2 span {
            font-size: 2rem;
        }
        .list-section-3 li {
            padding: 0.5rem;
        }
        .text-section-3 {
            font-size: 1rem;
        }
        .list-section-3 {
            font-size: 1rem;
        }
        .filter-section-3 {
            height: 78vh;
        }
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
        .img-section-4-img {
            opacity: 0.307;
            width: calc(100vw / 1);
            height: auto;
            border-radius: 51%;
        }
        .img-section-4 {
            top: 55%;
        }
        .copyright {
            bottom: 10%;
            text-align: center;
        }
    }
    /* iPhone 5 ----------- */
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 2) {}
    /* Styles */
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2) {}
    /* Styles */
    /* iPhone 6, 7, 8 ----------- */
    
    @media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
    }
    /* iPhone 6+, 7+, 8+ ----------- */
    
    @media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    /* iPhone X ----------- */
    
    @media only screen and (min-device-width: 375px) and (max-device-height: 812px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 375px) and (max-device-height: 812px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    /* iPhone XS Max, XR ----------- */
    
    @media only screen and (min-device-width: 414px) and (max-device-height: 896px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 414px) and (max-device-height: 896px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
    }
    /* Samsung Galaxy S3 ----------- */
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 2) {
        /* Styles */
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
    }
    /* Samsung Galaxy S4 ----------- */
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
    }
    /* Samsung Galaxy S5 ----------- */
    
    @media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation: landscape) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
    }
    
    @media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 3) {
        /* Styles */
        .filter-section-4 {
            top: 33%;
            background-color: rgba(255, 255, 255, 0.11);
        }
    }
    
    @media (prefers-color-scheme: dark) {
        .filter-section-3 {
            background-color: rgba(255, 255, 255, 0.507);
        }
        .filter-section-4 {
            background-color: rgba(255, 255, 255, 0.507);
        }
        .filter-section-2 {
            background-color: rgba(255, 255, 255, 0.507);
        }
    }