.header-section {
    background-color: var(--clr-slate100);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.title {
    margin-left: 1rem;
    font-weight: 700;
    font-size: var(--size-xl);
    color: var(--clr-sky600);
}

.nav {
    display: none;
}

.hamburger {
    display: block;
    cursor: pointer;
    margin-right: 1rem;
    /* border: 1px solid red; */
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--clr-dark);
}

/* mobile navbar */
.mobile-nav {
    display: none;
}

.mobile-nav-menu {
    text-align: center;
    list-style: none;
}

.mobile-nav-item {
    font-weight: 400;
    font-size: var(--size-lg);
    padding-bottom: 1rem;
}

.mobile-nav-item:hover {
    color: var(--clr-sky600);
    transition: color 0.3s;
}


/* xs */
/* @media (min-width: 475px) {} */

/* sm */
/* @media (min-width: 640px) {} */

/* md */
@media (min-width: 768px) {
    .title {
        margin-left: 2rem;
    }
    
    .hamburger {
        margin-right: 2rem;
    }
}

/* lg */
@media (min-width: 1024px) {
    .hamburger {
        display: none;
    }

    .mobile-nav {
        display: none;
    }
    
    .nav {
        display: block;
        margin-right: 4rem;
    }
    
    .nav-menu {
        display: flex;
        align-items: center;
        list-style: none;
        gap: 2em;
    }
    
    .nav-item {
        font-weight: 400;
        font-size: var(--size-xl);
    }

    .nav-item:hover {
        color: var(--clr-sky600);
        transition: color 0.3s;
    }

    .title {
        font-size: var(--size-2xl);
        margin-left: 4rem;
    }

}

/* xl */
@media (min-width: 1280px) {
    .title {
        margin-left: 6rem;
    }

    .nav {
        margin-right: 6rem;
    }
}

/* 2xl */
@media (min-width: 1536px) {
    .title {
        font-size: var(--size-3xl);
        margin-left: 8rem;
    }

    .nav {
        margin-right: 8rem;
    }

    .nav-item {
        font-size: var(--size-2xl);
    }
}