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

html {
    scroll-behavior: smooth;
}

body {
    position: relative;

    .bg-info-img {
        width: 100%;
        height:100%;
        position: fixed;
        background-image: url(../img/data-plans/gpon/gpon-bg-icon.avif);
        background-size: 150px;
        opacity: .6;
        z-index: -1;
    }
}

/*** Header Section ***********************************************************/
header {
    min-width: 320px;
    width: 100%;
    height: 75px;

    background-color: dodgerblue;

    display: flex;
    align-items: center;
    justify-content: center;
}

.header-wrapper {
    height: 90%;
    width: 95%;

    display: flex;
    align-items: center;
    justify-content: space-between;

    & img {
        height: 80%;
        width: clamp(180px, 35vw, 200px);
    }
}

.btn-nav {
    display: none;
}

.primary-nav {
    list-style: none;
    margin: 0;

    display: flex;
    gap:1.3rem;
}

.primary-nav li a {
    color: whitesmoke;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

@media(max-width: 50em) {
    .btn-nav {
        display: block;
        position: fixed;
        right: 2rem;

        background-color: dodgerblue;
        background-image: url(../img/menu.svg);
        background-size: contain;
        background-repeat: no-repeat;
        border: none;
        border-radius: 5px;

        width: 2.5rem;
        aspect-ratio: 1;

        z-index: 100;
    }

    .btn-nav[aria-expanded="true"] {
        background-image: url(../img/close.svg);
    }

    .primary-nav {
        background: hsl(0 0% 0% / 0.5);
        backdrop-filter: blur(2px);
        position: fixed;
        inset: 0 0 0 100%;

        flex-direction: column;
        padding: min(30vh, 10rem) 2em;

        transition: inset 350ms ease-out;

        z-index: 99;
    }

    .primary-nav[data-visible="true"] {
        inset: 0 0 0 50%;
    }
}



/*** Footer Section ***********************************************************/
footer {
    background-color: #1B262C;
    min-height: 150px;

    padding: 0 0 10px 10px;
    margin: 0 auto;
}

footer nav {
    padding-top: 15px;
}

footer nav ul {
    list-style-type: none;
    padding: 0;
}

footer nav ul li {
    color: #ccc;
    text-align: center;
}

footer nav ul li a {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
}

footer nav ul li a:hover {
    color: #ccc;
    text-decoration: underline;
}

@media (min-width: 768px){

    .header-wrapper img {
        height: 80%;
    }
}