body > nav:first-of-type {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: white;
  z-index: 200;

  padding-left: env(titlebar-area-x, 0);

  -webkit-app-region: drag;
  app-region: drag;
}

.main-nav {
  list-style: none;
  margin: 0;
  box-sizing: border-box;
  padding: 0 20px;
  padding-bottom: 10px;
  display: flex;

  padding-left: calc(20px + env(safe-area-inset-left));
  padding-right: calc(20px + env(safe-area-inset-right));
  padding-top: calc(10px + env(safe-area-inset-top));
  width: env(titlebar-area-width, 100%);
}

.main-nav li {
  display: inline-block;
}

.main-nav li:nth-child(2) {
  flex: 1;
}

.main-nav li:nth-child(3) {
  float: right;
}

.main-nav li a {
  color: inherit;
  text-decoration: none;
  padding: 0 16px;
  display: inline-block;
  line-height: 44px;
  border-radius: 22px;

  -webkit-app-region: no-drag;
  app-region: no-drag;
}

.main-nav li a.current-page {
  background: hsla(0,0%,0%,.06);
}

.main-nav li:last-child {
  margin-left: 10px;
}

.main-nav li:last-child a {
  height: 44px;
  width: 44px;
  box-sizing: border-box;
  padding: 0;

  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.main-nav li:first-child a {
  height: 44px;
  padding: 0;
  box-sizing: border-box;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
}

.main-nav li:first-child a .icon {
  height: 48px;
  width: 78px;
  transform: scale(1.5);
}

.main-nav .icon {
  height: 24px;
  width: 24px;
  display: inline-block;
  line-height: 44px;
}

.main-nav input[type=search] {
  font: inherit;
  color: inherit;
  border: none;
  border-radius: 22px;
  padding: 0 20px;
  padding-left: 44px;
  line-height: 44px;
  width: 100%;
  background: hsl(0,0%,94%) url('../svg/search.svg') no-repeat;
  background-position: 10px center;
  background-size: 24px;
  max-width: 480px;

  -webkit-appearance: none;

  -webkit-app-region: no-drag;
  app-region: no-drag;

  -webkit-user-select: initial;
  -moz-user-select: initial;
  user-select: initial;
}

@media (max-width: 320px) {
  .main-nav input[type=search] {
    max-width: 44px;
    overflow: hidden;
  }
}

.main-nav input[type=search]::placeholder {
  color: hsl(0,0%,50%);
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  body > nav:first-of-type {
    background: black;
  }

  .main-nav li:not(:first-child) .icon {
    filter: invert(1);
  }

  .main-nav input[type=search] {
    background: hsl(0,0%,15%) url('../svg/search-light.svg') 10px center / 24px no-repeat;
  }
}