.hamburger--spin .hamburger-inner {
    transition-duration: 0.22s;
    transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hamburger--spin .hamburger-inner::before {
    transition: top 0.1s 0.25s ease-in, opacity 0.1s ease-in;
}

.hamburger--spin .hamburger-inner::after {
    transition: bottom 0.1s 0.25s ease-in, transform 0.22s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

input#menu-toggle:checked ~ .hamburger--spin .hamburger-inner {
    transform: rotate(225deg);
    transition-delay: 0.12s;
    transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}

input#menu-toggle:checked ~ .hamburger--spin .hamburger-inner::before {
    top: 0;
    opacity: 0;
    transition: top 0.1s ease-out, opacity 0.1s 0.12s ease-out;
}

input#menu-toggle:checked ~ .hamburger--spin .hamburger-inner::after {
    bottom: 0;
    transform: rotate(-90deg);
    transition: bottom 0.1s ease-out, transform 0.22s 0.12s cubic-bezier(0.215, 0.61, 0.355, 1);
}