nav {
  background-color: var(--white-opacity-8);
  border-bottom: 1px solid var(--border-color);
  user-select: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  transition: height 0.8s cubic-bezier(0.86, 0, 0.07, 1);
}

nav > .inner {
  max-width: 980px;
  margin: auto;
  padding: 0 16px;
}

nav > * > * {
  display: inline-block;
}

nav a,
nav a:hover,
nav a:focus,
nav a:active,
nav a:link,
nav a:visited {
  text-decoration: none;
  color: var(--black-4);
}

nav .title {
  margin: 0;
  font-size: 20px;
  font-weight: normal;
  line-height: 48px;
  color: var(--black-2) !important;
}

nav .nav-arrow {
  display: none;
}

nav .nav-items {
  float: right;
  text-align: right;
}

nav .nav-item {
  display: inline-block;
  text-align: center;
  flex: 1;
  font-size: 16px;
  height: 48px;
  line-height: 48px;
  padding: 0 16px;
  transition: padding 0.2s;
}

@media screen and (max-width: 600px) {
  nav .nav-item {
    padding: 0 8px;
  }
}

@media screen and (max-width: 400px) {
  nav .nav-item {
    padding: 0 4px;
  }
}

nav .nav-item-home {
  display: none;
}

nav .nav-item-icon {
  width: 32px;
  height: 48px;
  background-position: center;
  background-size: 24px 24px;
  background-repeat: no-repeat;
  padding: 0;
}

nav .nav-item-github {
  background-image: url(/theme-img/github-mark-dark.png);
}

nav .nav-item-patreon {
  background-image: url(/theme-img/patreon-logo-black.png);
}

nav .nav-item-codepen {
  background-image: url(https://blog.codepen.io/wp-content/uploads/2012/06/Button-Fill-Black-Large.png);
}

@media (prefers-color-scheme: dark) {
  nav .nav-item-github {
    background-image: url(/theme-img/github-mark-light.png);
  }
  nav .nav-item-patreon {
    background-image: url(/theme-img/patreon-logo-white.png);
  }
  nav .nav-item-codepen {
    background-image: url(https://blog.codepen.io/wp-content/uploads/2012/06/Button-Fill-White-Large.png);
  }
}

@media screen and (max-width: 600px) {
  nav {
    height: 48px;
    overflow: hidden;
  }
  nav .title {
    pointer-events: none;
    display: inline-block;
    transition: all 0.2s;
    transition-delay: 0.6s;
  }
  nav .nav-arrow {
    display: inline-block;
    margin-top: 8px;
    width: 40px;
    height: 30px;
    float: right;
  }
  nav .nav-arrow::before,
  nav .nav-arrow::after {
    content: "";
    background-color: var(--nav-arrow);
    display: block;
    position: absolute;
    top: 28px;
    width: 12px;
    height: 1px;
    transition: transform 1s cubic-bezier(0.86, 0, 0.07, 1), transform-origin 1s cubic-bezier(0.86, 0, 0.07, 1),
      top 1s cubic-bezier(0.86, 0, 0.07, 1);
  }
  nav .nav-arrow::before {
    transform-origin: 100% 100%;
    transform: rotate(40deg) scaleY(1.5);
    right: 50%;
  }
  nav .nav-arrow::after {
    transform-origin: 0% 100%;
    transform: rotate(-40deg) scaleY(1.5);
    left: 50%;
  }
  nav .nav-items {
    width: 100%;
    float: none;
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.86, 0, 0.07, 1);
    transform: translate(0, -20%);
  }
  nav .nav-item {
    pointer-events: none;
    display: block;
    text-align: left;
  }
  nav .nav-item-icon {
    float: left;
    display: inline-block;
  }
  nav.open .title {
    transform: translate(0, 8px);
    opacity: 0;
    transition-delay: 0s;
  }
  nav.open .nav-arrow::before,
  nav.open .nav-arrow::after {
    top: 16px;
  }
  nav.open .nav-arrow::before {
    transform-origin: 100% 0%;
    transform: rotate(-40deg) scaleY(1.5);
  }
  nav.open .nav-arrow::after {
    transform-origin: 0% 0%;
    transform: rotate(40deg) scaleY(1.5);
  }
  nav.open .nav-item {
    pointer-events: initial;
  }
  nav.open .nav-items {
    transform: translate(0, -0%);
    opacity: 1;
  }
}