/*=============== GOOGLE FONTS ===============*/
@import url("https://fonts.googleapis.com/css2?family=Montserrat+Alternates:wght@400;500&display=swap");

/*=============== VARIABLES CSS ===============*/
:root {
    --header-height: 3rem;
    /*========== Colors ==========*/
    /*Color mode HSL(hue, saturation, lightness)*/
    --white-color: hsl(0, 0%, 100%);
    --black-color: hsl(0, 0%, 0%);
    /*========== Font and typography ==========*/
    /*.5rem = 8px | 1rem = 16px ...*/
    --body-font: Futura Display;
    --h1-font-size: 1.5rem;
    --normal-font-size: .938rem;
    /*========== Font weight ==========*/
    --font-regular: 400;
    --font-medium: 500;
    /*========== z index ==========*/
    --z-tooltip: 10;
    --z-fixed: 100;
}

/*========== Responsive typography ==========*/
@media screen and (min-width: 1150px) {
    :root {
        --normal-font-size: 1rem;
    }
}

/*=============== BASE ===============*/

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

/*=============== HEADER & NAV ===============*/
.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    background-color: #2f2f30;
    z-index: var(--z-fixed);
    font-family: Futura Display;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19); 
}

.nav {
    position: relative;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: 0.4s;
    padding: 0 15px;
}

.nav__logo {
    font-weight: var(--font-medium);
}

.nav__close,
.nav__toggle {
    display: flex;
    color: var(--white-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Navigation for mobile devices */
@media screen and (max-width: 1150px) {
    .nav__menu {
        position: fixed;
        left: -100%;
        top: 0;
        background-color: var(--black-color);
        width: 100%;
        height: 100%;
        padding: 6rem 3.5rem 4.5rem;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        transition: left .4s;
    }

    .nav__item {
        transform: translateX(-150px);
        visibility: hidden;
        transition: transform .4s ease-out, visibility .4s;
    }

        .nav__item:nth-child(1) {
            transition-delay: .1s;
        }

        .nav__item:nth-child(2) {
            transition-delay: .2s;
        }

        .nav__item:nth-child(3) {
            transition-delay: .3s;
        }

        .nav__item:nth-child(4) {
            transition-delay: .4s;
        }

        .nav__item:nth-child(5) {
            transition-delay: .5s;
        }
        .nav__item:nth-child(6) {
            transition-delay: .6s;
        }
        .nav__item:nth-child(7) {
            transition-delay: .7s;
        }
}

.nav__list {
    display: flex;
}

.nav__list {
    flex-direction: column;
    row-gap: 2rem;
}

.nav__link {
    position: relative;
    color: var(--white-color);
    font-size: var(--h1-font-size);
    font-weight: var(--font-medium);
    display: inline-flex;
    align-items: center;
    transition: opacity .4s;
}

    .nav__link span {
        position: relative;
        transition: margin .4s;
    }

        .nav__link span::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 0;
            height: 2px;
            background-color: var(--white-color);
            transition: width .4s ease-out;
        }

    /* Animation link on hover */
    .nav__link:hover span {
        margin-left: 5px;
    }

    .nav__link:hover span::after {
        width: 100%;
    }

/* Animation for active link menu item */
.active span {
    margin-left: 5px;
}

.active span::after {
    width: 100%;
}

/* Sibling fade animation */
.nav__list:has(.nav__link:hover) .nav__link:not(:hover) {
    opacity: .4;
}

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

/* Show menu */
.show-menu {
    left: 0;
}

    /* Animation link when displaying menu */
    .show-menu .nav__item {
        visibility: visible;
        transform: translateX(0);
    }

/*=============== BREAKPOINTS ===============*/
/* For large devices */
@media screen and (min-width: 1150px) {
    .nav {
        height: calc(var(--header-height) + 2rem);
    }

    .nav__toggle,
    .nav__close {
        display: none;
    }

    .nav__link {
        font-size: var(--normal-font-size);
    }

        .nav__link i {
            font-size: 1.5rem;
        }

    .nav__list {
        flex-direction: row;
        column-gap: 3.5rem;
    }

    .nav__menu {
        display: flex;
        align-items: center;
        column-gap: 3.5rem;
    }
}