nav {
    width: 100vw;
    height: 15vh;
}

.nav-placeholder {
    height: 15vh;
}

.nav-menu .logo-wrapper {
    display: none;
    height: 90%;
    border-radius: 20px;
    overflow: hidden;
}

.nav-menu .logo {
    height: 100%;
}

.nav-top-bar .logo-wrapper:hover {
    transform: unset;
}

nav a {
    /* TODO: Update colours */
    color: var(--color-text-primary);
    text-decoration: none;
    transform: scale(1);
    transition: transform 0.75s;
}

nav a:hover {
    transform: scale(1.1);
}

.nav-link-wrapper {
    margin-bottom: 30px;
}

.nav-link-dropdown a {
    font-size: 1.1rem;
}

.nav-icon {
    font-size: 2rem;
}

.nav-menu {
    position: fixed;
    left: -100vw;
    top: 15vh;
    padding-top: 2.5vh;
    padding-bottom: 2.5vh;
    padding-left: 2.5vw;
    padding-right: 2.5vw;
    height: 80vh;
    width: 95vw;
    display: flex;
    flex-direction: column;
    z-index: 100;
    background-color: var(--color-background-accent);
    transition: left 0.5s, top 0.5s;
}

.nav-top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 15vh;
    background-color: var(--color-background-accent);
    display: flex;
    align-items: center;
    z-index: 100;
    border-bottom: black 1px solid;
    transition: top 0.5s;
}

.nav-top-bar.slide-up {
    top: -20vh;
}

.nav-top-bar .logo {
    height: 100%;
}

.nav-top-bar .logo-wrapper {
    display: unset;
    height: 90%;
    border-radius: 20px;
    margin-left: 20px;
    overflow: hidden;
}

.nav-menu.active {
    left: 0;
}

.nav-link-header {
    font-size: 1.2rem;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    transition: all 0.5s;
}

.nav-link-dropdown {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}


/* Nav-Toggle button idea from here: https://codepen.io/alvarotrigo/pen/wvrzPWL*/
.nav-toggle {
    margin-left: auto;
    margin-right: 20px;
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: 5vh;
    cursor: pointer;
    width: 35px;
    height: 25px;
    z-index: 1;
    transition: 0.8s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
}

#line1 {
    transform-origin: 0% 0%;
    transition: transform 0.4s ease-in-out;
}

#line2 {
    transition: transform 0.2s ease-in-out;
}

#line3 {
    transform-origin: 0% 100%;
    transition: transform 0.4s ease-in-out;
}

.nav-toggle.active #line1 {
    transform: rotate(45deg) scaleX(0.95);
}

.nav-toggle.active #line2 {
    transform: scaleY(0);
}

.nav-toggle.active #line3 {
    transform: rotate(-45deg) scaleX(0.95);
}


@media only screen and (min-width: 900px) {
    nav {
        height: 20vh;
    }

    nav a:hover {
        transform: unset;
    }

    .nav-placeholder {
        height: 20vh;
    }

    .nav-menu .logo-wrapper {
        display: unset;
    }

    .nav-top-bar {
        display: none;
    }

    .nav-menu {
        padding: 0;
        height: 20vh;
        width: 100vw;
        justify-content: center;
        align-items: center;
        flex-direction: row;
        top: 0;
        left: 0;
        border-bottom: var(--color-text-primary) 1px solid;
    }

    .nav-menu.slide-up {
        top: -20vh;
    }

    .nav-link-dropdown {
        transform: scaleY(0);
        align-items: unset;
        justify-content: unset;
        position: absolute;
        top: 100%;
        min-width: 175px;
        width: max-content;
        transform-origin: top;
        transition: transform 0.5s;
        background-color: var(--color-background-primary);
        border-radius: 10px;
        padding: 15px;
        z-index: 2;
    }

    .nav-link-wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        cursor: pointer;
        position: relative;
        margin-left: 3%;
        margin-right: 3%;
        margin-bottom: unset;
    }

    .nav-link-header {
        flex-direction: column;
        min-width: 100px;
        padding: 10px;
        border-top-left-radius: 10px;
        border-top-right-radius: 10px;
        position: relative;
        z-index: 3;
    }

    .nav-link-header::before,
    .nav-link-header::after {
        opacity: 0;
        border: var(--color-background-primary) 15px solid;
        border-top-color: transparent;
        width: 20px;
        height: 20px;
        position: absolute;
        content: " ";
        z-index: -1;
        transition: opacity 0.4s;
        bottom: -15px;
    }

    .nav-link-header::before {
        border-left-color: transparent;
        border-bottom-right-radius: 30px;
        right: calc(100% - 15px);
    }

    .nav-link-header::after {
        border-right-color: transparent;
        border-bottom-left-radius: 30px;
        left: calc(100% - 15px);
    }

    .nav-link-dropdown a:hover {
        text-decoration: underline;
    }

    .nav-link-wrapper:hover .nav-link-header {
        background-color: var(--color-background-primary);
    }

    .nav-link-wrapper:hover .nav-link-dropdown {
        transform: scaleY(1);
    }

    .nav-link-wrapper:hover .nav-link-header::before,
    .nav-link-wrapper:hover .nav-link-header::after {
        transition-delay: 0.1s;
        opacity: 1;
    }

    .nav-toggle {
        display: none;
    }
}