* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: calc(15px + 0.390625vw);
}

:root {
    --text: #000;
    --background: #fff;
}

body {
    background-color: var(--background);
    color: var(--text);
}

a,
a:visited,
a:hover,
a:active {
    color: inherit;
}



/* --------Header Navigation-------- */

#header {
    --text: #fff;
    --text-inverse: #000;
    --background: transparent;

    position: fixed;
    width: 100%;
    top: 0;
    z-index: 3;
    height: 10vh;
}

#header.nav-scrolled {
    --text: #000;
    --text-inverse: #fff;
    --background: #fff;
}

#header.nav-scrolled .contain-nav {
    background-color: var(--background);
    transition: all .5s ease-in-out;
    box-shadow: 0px 2px rgba(0, 0, 0, .1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 1.5rem;
}

#header.nav-scrolled nav {
    padding: 1rem 1.5rem;
    transition: all .5s ease-in-out;
}

.logo-title {
    color: var(--text);
    font-size: 1.5rem;
    font-weight: 700;
    width: 62%;
}

.logo-title a{
    text-decoration: none;
}

/* -------------Burger------------ */

.row-burger {
    position: absolute;
    right: 5%;
    display: none;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    transition: all .5s ease-in-out;
}

.burger-icon {
    width: 40px;
    height: 3px;
    border-radius: 5px;
    transition: all .5s ease-in-out;
}

.burger-icon::before,
.burger-icon::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 1.5px;
    background: var(--text);
    border-radius: 5px;
    transition: all .25s ease-in-out;
}

.burger-icon::before {
    transform: translateY(-6px);
    background: var(--text);
}

.burger-icon::after {
    transform: translateY(6px);
    background: var(--text);
}

/* ----------Burger-Animation--------- */

.row-burger.open {
    overflow: visible;
}

.row-burger.open .burger-icon {
    background: transparent;
    box-shadow: none;
}

.row-burger.open .burger-icon::before {
    transform: rotate(-135deg) translate(0, 0);
}

.row-burger.open .burger-icon::after {
    transform: rotate(135deg) translate(0, 0);
}


/* ----------Drop Menu----------- */

.drop-menu {
    margin: 0;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary);
}

.drop-menu.open {
    margin: 0;
    position: absolute;
    top: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    padding: 0.5rem;
}

.drop-menu ul {
    list-style: none;
}

.drop-list {
    display: flex;
    justify-content: center;
    align-items: center;
}

.drop-menu.open drop-list {
    display: flex;
    justify-content: center;
    align-items: center;
}

.drop-list a {
    color: var(--text);
    font-size: 1rem;
    text-decoration: none;
}

.drop-list li {
    text-align: center;
    padding: 0.35rem 0;
    margin: 0 0.35rem;
}

.drop-list li.open {
    border-bottom: 1px solid var(--text);
}

/* --------Footer------- */

.section-footer {
    color: #000;
    margin: 4rem 1rem 2rem;
}

.legal-links {
    text-align: center;
    margin: 2rem 1rem;
}

.legal-links a {
    font-weight: bold;
    margin: 1rem;
    display: inline-block;
}

.bottom-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.certifications img {
    max-width: 100%;
}

/* --------Intersection Transitions------ */

.fade-in {
    opacity: 0;
    transition: opacity 250ms ease-in;
}

.fade-in.appear {
    opacity: 1;
}

.page-content {
    overflow: hidden;
}

.from-left {
    transform: translateX(-50%);
    opacity: 0;
}

.from-right {
    transform: translateX(50%);
    opacity: 0;
}

.from-left,
.from-right {
    transition: opacity 250ms ease-in, transform 400ms ease-in;
}

.slide-in.appear .from-left,
.slide-in.appear .from-right {
    transform: translateX(0);
    opacity: 1;
}

/* --------Responsiveness------- */


@media only screen and (max-width: 1030px) {
    nav {
        justify-content: center;
    }

    .row-burger {
        display: flex;
    }

    .logo-title {
        text-align: center;
    }

    .drop-menu {
        display: none;
        height: 0;
        overflow: hidden;
    }

    .drop-menu.open {
        display: flex;
        height: 100vh;
        background-color: #fff;
    }

    .drop-list {
        flex-direction: column;
    }

    .logo-title {
        width: 75%;
    }

    .logo-title.open {
        position: absolute;
        top: 2rem;
        color: #000;
    }

    .drop-menu li.open {
        border-bottom: 3px solid black;
    }

    .drop-list a {
        font-size: 3rem;
        color: #000;
    }

    .row-burger.open {
        top: 2rem;
    }

    .row-burger.open .burger-icon::before {
        background: #000;
    }

    .row-burger.open .burger-icon::after {
        background: #000;
    }

}