.head {
    position:sticky;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--header-bg);
    box-shadow: 1px 1px 5px 0px var(--shadow);
    width: 100%;
    top: 0;
    transition: all 0.5s ease;
}
.header-scrolled .logo{
    width: 0;
    margin: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}
.head:hover {
    background-color: var(--header-bg-hover);
}
.logo {
    display: block;
    width: 50px;
    height: 50px;
    margin: 10px;
    transition: all 0.5s ease;
}
.nav {
    display: flex;
    flex-direction: column;
    flex-wrap: inherit;
    align-items: center;
    justify-content: flex-start;
    background-color: var(--accent);
    width: 100%;
    position:absolute;
    top: 100%;
    left: 0;
    overflow: hidden;
    transition: 0.5s ease-out;
    max-height: 0;
}
.nav a {
    padding: 30px;
    width: 100%;
    color: #111;
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
    border-radius: 0 12px 12px 0;
    text-decoration: none;
}
.nav a:hover,
.nav a:focus-visible {
    color: var(--icon-hover);
    background-color: rgba(255,255,255,0.14);
    transform: translateX(2px);
    outline: none;
}
a:focus, button:focus, input:focus, select:focus, textarea:focus {
    outline: 3px solid #ffdca8;
    outline-offset: 2px;
}
.menu-icon {
    width: 30px;
    height: 30px;
    color: var(--icon-color);
    display: inline-block;
    vertical-align: middle;
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.hamb {
    cursor: pointer;
    float: right;
    padding: 17px 17px;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.hamb:hover,
.hamb:focus-within {
    background-color: var(--icon-bg);
    border-color: var(--icon-hover);
}
.hamb:focus-visible {
    outline: 3px solid var(--icon-focus);
    outline-offset: 3px;
}
.hamb:hover .menu-icon,
.hamb:focus-within .menu-icon {
    color: var(--icon-hover);
}
.hamb:active .menu-icon {
    color: var(--icon-active);
}
.hamb:focus-visible {
    outline: 3px solid var(--icon-focus);
    outline-offset: 3px;
}
.side-menu {
    display: none;
}
.side-menu:checked ~ nav{
    max-height: 1000px;
}