header {
  position: fixed;
  top: 0;
  z-index: 100;
  background-color: var(--primary-menu-bgr);
  max-width: var(--max-viewport-width);
}

section[id] {
    scroll-margin-top: calc(var(--font-size) * var(--scroll-margin) - 4px);
}

.navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: calc(var(--font-size) * var(--header-height));
  transition: height 300ms ease-in-out;
  margin-left: calc(var(--font-size) * 0.5);
  margin-right: calc(var(--font-size) * 0.5);
}

.navigation .logo {
  height: inherit;
  display: inline-flex;
  align-items: center;
  z-index: 10;
}

.navigation .logo > a {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.navigation .logo img {
  /*width: 60%;*/
  width: calc(var(--font-size) * 5.5);
  height: calc(var(--header-height) * 1);
  object-fit: cover;
  filter: saturate(1.5);
  -webkit-filter: saturate(1.5);
}

.navigation .menu-toggle {
  display: none;
}

.navigation .menu-toggle:checked ~ .menu {
  transform: translateY(0%);
  background-color: var(--secondary-menu-bgr);
  transition: transform 300ms ease-in-out, background-color 150ms 250ms ease-in-out, border-bottom 0ms 0ms ease-in-out;
  -webkit-transition: transform 300ms ease-in-out, background-color 150ms 250ms ease-in-out, border-bottom 0ms 0ms ease-in-out;
  border-bottom: calc(var(--font-size) * .1) solid var(--primary-menu-separator-color);
  /*border-bottom: calc(var(--font-size) * .1) solid var(--secondary-menu-separator-color);*/
}

.navigation .menu-toggle:checked ~ .menu .menu-item a {
  opacity: 1;
  transition: opacity 250ms ease-in-out 250ms;
}

.navigation .menu-toggle:checked ~ .navigation-mask {
  background-color: var(--primary-bgr);
  opacity: 1;
  transition: opacity 250ms ease-in-out 250ms;
  -webkit-transition: opacity 250ms ease-in-out 250ms;
  visibility: visible;
  backdrop-filter: grayscale() blur(1px);
}

.navigation .menu-toggle ~ .navigation-mask {
  position: fixed;
  opacity: 0;
  transition: all 250ms ease-in-out 250ms;
  -webkit-transition: all 250ms ease-in-out 250ms;
  top: calc(var(--header-height) * 1rem);
  bottom: 0;
  left: 0;
  right: 0;
  visibility: hidden;
  background-color: transparent !important;
}

.navigation .menu-toggle-label {
  height: 100%;
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: 250ms ease-in-out;
  -webkit-transition: 250ms ease-in-out;
  z-index: 10;
}

.navigation .menu-toggle-label span {
  display: block;
  background-color: var(--neutral-widget-color);
  height: calc(var(--font-size) * .25);
  width: calc(var(--font-size) * 2);
  border-radius: calc(var(--font-size) * .125);
  position: relative;
  transition: 250ms ease-in-out;
  -webkit-transition: 250ms ease-in-out;
}

.navigation .menu-toggle-label span::before,
.navigation .menu-toggle-label span::after {
  display: block;
  background-color: var(--neutral-widget-color);
  height: calc(var(--font-size) * .25);
  width: calc(var(--font-size) * 2);
  border-radius: calc(var(--font-size) * .125);
  content: "";
  position: absolute;
  transition: 250ms ease-in-out;
  -webkit-transition: 250ms ease-in-out;
}

.navigation .menu-toggle-label span::before {
  bottom: calc(var(--font-size) * .5);
}

.navigation .menu-toggle-label span::after {
  top: calc(var(--font-size) * .5);
}


.navigation .menu-toggle:checked ~ .menu-toggle-label span {
  background-color: transparent;
}

.navigation .menu-toggle:checked ~ .menu-toggle-label span::before {
  transform: translateY(calc(var(--font-size) * 0.5)) rotate(45deg);
}

.navigation .menu-toggle:checked ~ .menu-toggle-label span::after {
  transform: translateY(calc(var(--font-size) * -0.5)) rotate(-45deg);
}


.navigation .menu {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  position: absolute;
  right: 0;
  top: calc((var(--font-size) * var(--header-height)) + 0px);
  padding: calc(var(--font-size) * 0) calc(var(--font-size) * .5) calc(var(--font-size) * 0) calc(var(--font-size) * 0);
  background-color: var(--primary-menu-bgr);
  width: 100%;
  line-height: calc(var(--font-size) * 3.7);
  transform: translateY(-100%);
  transition: background-color 150ms ease-in-out, transform 150ms 150ms ease-in-out, border-bottom 50ms 300ms;
  -webkit-transition: background-color 150ms ease-in-out, transform 150ms 150ms ease-in-out, border-bottom 50ms 300ms;
  z-index: 9;
  opacity: 1;
  border-bottom: calc(var(--font-size) * .1) solid var(--secondary-menu-separator-color);
  /*border-bottom: calc(var(--font-size) * .1) solid var(--primary-menu-separator-color);*/
  /*height: calc(100vh - var(--font-size) * var(--header-height));*/
}

.navigation .menu-item {
  height: 100%;
  width: 100%;
}

.navigation .menu-item:last-child {
  margin-bottom: calc(var(--font-size) * 2.0);
}

.navigation .menu-item a {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  text-transform: uppercase;
  font-family: var(--primary-font);
  font-size: calc(var(--font-size) * 1.1);
  color: var(--primary-menu-color);
  padding-left: calc(var(--font-size) * 1.5);
  opacity: 0;
  transition: opacity 150ms ease-in-out;
  -webkit-transition: opacity 150ms ease-in-out;
}

.navigation .menu-item.selected a {
  background-color: var(--active-menu-item-bgr);
}

.navigation .contact-me a {
    color: var(--primary-accent);
    text-shadow: 0 0 .5px;
    font-weight: bold;
}

.navigation .menu-item.contact-me a:hover {
  color: var(--primary-accent);
}

.navigation .menu-item a:after {
  content: "";
  position: absolute;
  background-color: var(--secondary-accent);
  background-color: transparent;
  height: calc(var(--font-size) * 1.875);
  width: 0;
  left: 0;
  bottom: calc(var(--font-size) * -0.625);
  transition: 150ms ease-in-out;
  -webkit-transition: 150ms ease-in-out;
}

.navigation .menu-item:hover a:after {
  width: 100%;
}

.navigation .menu-item a:hover {
  color: var(--secondary-menu-color);
}

.navigation .menu-item a:hover {
  background-color: #d0d0d0 !important;
  cursor: pointer;
  transition: 150ms ease-in-out;
  -webkit-transition: 150ms ease-in-out;
}

.navigation .menu-item a:focus {
  outline-color: gray;
  outline-style: dotted;
  outline-offset: calc(var(--font-size) * -.1);
  outline-width: calc(var(--font-size) * .1);
  background-color: #d0d0d0 !important;
}

.navigation .logo a:focus {
  outline-color: gray;
  outline-style: dotted;
  outline-offset: calc(var(--font-size) * -.1);
  outline-width: calc(var(--font-size) * .1);
  padding: 0 calc(var(--font-size) * .4);
  margin-left: calc(var(--font-size) * -.4);
}

.nav-border {
  position: sticky;
  top: calc(var(--font-size) * var(--header-height));
  height: calc(var(--font-size) * .1);  background-color: var(--primary-accent);
  z-index: 99;
  /*background-color: var(--secondary-accent);*/
  /*background: linear-gradient(90deg, var(--primary-accent) 45%,var(--secondary-accent) 55%);*/
}

.nav-top {
  width: 100%;
  height: 1.02px;
  opacity: 0;
  display: none;
}

@media only screen and (min-width: 332px) {
  .navigation {
    margin-left: calc(var(--font-size) * 1.0);
    margin-right: calc(var(--font-size) * 1.0);
  }
  .navigation .menu {
    padding: calc(var(--font-size) * 0) calc(var(--font-size) * 0) calc(var(--font-size) * 0) calc(var(--font-size) * 0);
  }
}

@media only screen and (min-width: 675px) {
  header {
    box-shadow: 0px 0px 20px 0px var(--menu-bar-shadow-color);
    /*border-bottom: calc(var(--font-size) * .1) solid var(--primary-menu-separator-color);*/
  }
  .navigation {
    margin-left: calc(var(--font-size) * 1.0);
    margin-right: calc(var(--font-size) * 1.0);
  }
  .navigation .logo img {
    /*height: 50%;*/
    box-sizing: border-box;
  }
  .navigation .menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 0;
    justify-content: space-between;
    position: static;
    right: unset;
    top: unset;
    row-gap: unset;
    background-color: unset !important;
    width: unset;
    height: 100%;
    transform: unset;
    transform-origin: unset;
    border-bottom: unset !important;
    backdrop-filter: unset;
    line-height: unset;
    box-shadow: none;
  }
  .navigation .menu-item,
  .navigation .menu-item:last-child {
    margin-bottom: calc(var(--font-size) * 0);
    width: auto;
  }
  .navigation .menu-item a,
  .navigation .menu-item:last-child a {
    opacity: 1;
    display: flex;
    align-items: center;
    margin-top: calc(var(--font-size) * 0);
    margin-right: calc(var(--font-size) * 0);
    margin-left: calc(var(--font-size) * 0);
    padding: 0 calc(var(--font-size) * .75);
    margin-bottom: calc(var(--font-size) * 0);
    width: auto;
  }
  .navigation .menu-item:last-child a {
    margin-right: calc(var(--font-size) * -1.0);
    padding-right: calc(var(--font-size) * 1.0);
  }
  .navigation .menu-item.selected a {
    background-color: var(--active-menu-item-bgr);
  }
  .navigation .menu-toggle-label {
    display: none;
  }
  .navigation .menu-toggle:checked ~ .navigation-mask {
    opacity: 0;
    visibility: hidden;
    backdrop-filter: unset;
  }
}

@media only screen and (min-width: 1024px) {
  .navigation {
    margin-left: calc(var(--font-size) * 1.0);
    margin-right: calc(var(--font-size) * 1.0);
  }
}

/*
@media only screen and (min-width: 1440px) and (min-height: 1025px) {
  .nav-border {
    display: none;
  }
  header {
    border-bottom: calc(var(--font-size) * .1) solid var(--primary-menu-separator-color);
  }
}*/