.header {
    background-color: var(--black);
    position: sticky;
    top: 0;
    width: 100%;
}

.header ul {
    list-style: none;
}

.logo {
    display: inline-block;
    color: var(--white);
    font-size: 60px;
    font-weight: 600;
    margin-left: 10px;
}

.nav {
    width: 100%;
    height: 100%;
    position: fixed;
    background-color: var(--black);
    font-weight: 600;
    overflow: hidden;
}

.menu a {
    display: block;
    padding: 30px;
    color: var(--white);
}

.menu a:hover {
    background-color: var(--gray);
}

.nav {
    max-height: 0;
    transition: max-height .5s ease-out;
}

.mnav {
    cursor: pointer;
    float: right;
    padding: 40px 20px;
}

.mnav-line {
    background: var(--white);
    display: block;
    height: 2px;
    position: relative;
    width: 24px;
}

.mnav-line::before,
.mnav-line::after{
    background: var(--white);
    content: '';
    display: block;
    height: 100%;
    position: absolute;
    transition: all .2s ease-out;
    width: 100%;
}

.mnav-line::before {
    top: 5px;
}

.mnav-line::after {
    top: -5px;
}

.slide-menu {
    display: none;
} 

.slide-menu:checked ~ nav{
    max-height: 100%;
}

.slide-menu:checked ~ .mnav .mnav-line {
    background: transparent;
}

.slide-menu:checked ~ .mnav .mnav-line::before {
    transform: rotate(-45deg);
    top:0;
}

.slide-menu:checked ~ .mnav .mnav-line::after {
    transform: rotate(45deg);
    top:0;
}

body:has(.slide-menu:checked) {
    overflow: hidden;
}