header {
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.1);
    position: relative;
    background-color: white;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    align-content: center;
    position: relative;
}

header .container .logo {
    color: var(--font-color);
    font-size: 25px;
    height: 64px;
    text-decoration: none;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-duration);
}

header .container .logo:hover {
    color: var(--hover-color);
}

header .container nav>ul {
    flex-basis: 70%;
    display: flex;
    align-items: center;
}

header .container nav>ul>li>a {
    text-decoration: none;
    color: var(--font-color-alt);
    font-size: 20px;
    font-weight: normal;
    display: block;
    height: 64px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 30px;
    position: relative;
    transition: var(--transition-duration);
}

header .container nav>ul>li>a:before {
    content: "";
    position: absolute;
    width: 0;
    height: 4px;
    background-color: var(--hover-color);
    top: 0;
    left: 0;
    transition: var(--transition-duration);
}

header .container nav>ul>li>a:hover {
    color: var(--hover-color);
    background-color: #f0f0f0;
}

header .container nav>ul>li>a:hover:before {
    width: 100%;
}

header .container .mega-menu {
    position: absolute;
    width: 100%;
    top: 84px;
    left: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
    gap: 20px;
    z-index: -1;
    opacity: 0;
    border-bottom: 5px solid var(--main-color);
    transition: var(--transition-duration);
}

header .container nav>ul>li:hover .mega-menu {
    z-index: 100;
    opacity: 1;
    top: calc(64px + 1px);
}

header .container .mega-menu .image img {
    max-width: 100%;
}

header .container .mega-menu .links {
    width: 20%;
    min-width: 250px;
}

header .container .mega-menu .links li a {
    color: var(--font-color);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    text-decoration: none;
    padding: 20px;
    width: 100%;
    position: relative;
    border-bottom: 1px solid var(--main-color);
    font-weight: bold;
    font-size: 18px;
}

header .container .mega-menu .links li a i {
    margin-right: 10px;
    font-weight: bold;
}

header .container .mega-menu .links li a::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: #f3f3f373;
    z-index: -1;
    transition: var(--transition-duration);
}

header .container .mega-menu .links li a:hover::before {
    width: 100%;
}

header .container .mega-menu .links li:last-child a {
    border-bottom: none;
}

/* Responsive (Medium) */
@media (max-width: 991px) {
    header .container .logo {
        flex-basis: 100%;
    }

    header .container nav {
        flex-basis: 100%;
    }

    header .container ul {
        justify-self: center;
    }

    header .container ul li a {
        font-size: 20px;
        padding: 10px;
        height: auto;
    }

    header .container .mega-menu {
        top: 148px;
    }

    header .container nav>ul>li:hover .mega-menu {
        top: calc(128px + 1px);
    }

    header .container .mega-menu .image {
        display: none;
    }
}

/* Responsive (Mobile) */
@media (max-width: 767px) {
    header .container .logo {
        flex-basis: 100%;
    }

    header .container nav {
        flex-basis: 100%;
    }

    header .container nav>ul {
        justify-self: center;
    }

    header .container nav>ul>li>a {
        font-size: small;
        padding: 10px;
        height: auto;
    }

    header .container .mega-menu {
        flex-direction: column;
        gap: 0;
        padding: 0;
        top: 120px;
        justify-content: flex-start;
        align-items: flex-start;
    }

    header .container nav>ul>li:hover .mega-menu {
        top: calc(100px + 1px);
    }

    header .container .mega-menu .links {
        width: 100%;
    }

    header .container .mega-menu .links:first-of-type li:last-child {
        border-bottom: 1px solid var(--main-color);
    }

    header .container .mega-menu .links li a {
        padding: 10px;
        font-size: small;
    }
}