/* header bar */
.site-header {background: #ddd; filter: drop-shadow(0px -1px 2px rgba(0,0,0,0.2))}
.site-header a {text-decoration: none; color: inherit;}
.site-title {font-weight: 700; font-size: 22px; line-height: 2em;}
.site-header .container {display: flex; flex-flow: row wrap;}
.site-nav {flex-basis: 100%; display: flex; flex-flow: column;}
.site-nav a {display: block; padding: 1em 0;}

/* css menu */
.site-nav {
	display: none;
	@media (min-width: 600px) {
		display: flex;
		flex-basis: unset;
		flex-flow: row;
		ul {
			display: flex;
		}
		a {
			margin-left: 1em;
			box-sizing: border-box;
		}
	}
}
.site-header {
	position: fixed; bottom: 0; width: 100%;
	@media (min-width: 600px) {
		position: sticky;
		bottom: unset;
		top: 0;
		z-index: 2;
		a {height: 44px;}
		a:hover {border-bottom: 2px solid #00a3ff;}
		.container {justify-content: space-between; flex-flow: row wrap; height: 64px; align-items: center;}
	}
}
body {
	margin-bottom: 44px;
	@media (min-width: 600px) {margin-bottom: unset;}
}
.hamburger-label::before {content:"Menu"; position: absolute; left: -3em; }
#hamburger:checked ~ .site-nav {
    display: flex;
}
#hamburger {
    transition: all 0.5s;
    box-sizing: border-box;
    display: none;
}
.hamburger-label {
    transition: all 0.5s;
    box-sizing: border-box;
    cursor: pointer;
    position: absolute;
    z-index: 99;
    height: 100%;
    width: 100%;
    top: 16px;
    right: 15px;
    height: 22px;
    width: 22px;
}
.spinner {
    transition: all 0.5s;
    box-sizing: border-box;
    position: absolute;
    height: 3px;
    width: 100%;
    background-color: black;
}
.horizontal {
    transition: all 0.5s;
    box-sizing: border-box;
    position: relative;
    float: left;
    margin-top: 3px;
}
.diagonal.part-1 {
    position: relative;
    transition: all 0.5s;
    box-sizing: border-box;
    float: left;
}
.diagonal.part-2 {
    transition: all 0.5s;
    box-sizing: border-box;
    position: relative;
    float: left;
    margin-top: 3px;
}
#hamburger:checked ~ .hamburger-label > .horizontal {
    transition: all 0.5s;
    box-sizing: border-box;
    opacity: 0;
}
#hamburger:checked ~ .hamburger-label > .diagonal.part-1 {
    transition: all 0.5s;
    box-sizing: border-box;
    transform: rotate(135deg);
    margin-top: 8px;
}
#hamburger:checked ~ .hamburger-label > .diagonal.part-2 {
    transition: all 0.5s;
    box-sizing: border-box;
    transform: rotate(-135deg);
    margin-top: -9px;
}
@media (min-width: 600px) {
	#hamburger, .hamburger-label {display: none;}
}