:host {
  --color-header-background-light: #fafafa;
  --color-header-text-light: #333333;
  --icon-close-url-light: url("/assets/images/icon-close.svg");
  --icon-menu-url-light: url("/assets/images/icon-menu.svg");
  --logo-url-light: url("/assets/images/swift.svg");

  --color-header-background-dark: #333333;
  --color-header-text-dark: #fafafa;
  --icon-close-url-dark: url("/assets/images/icon-close~dark.svg");
  --icon-menu-url-dark: url("/assets/images/icon-menu~dark.svg");
  --logo-url-dark: url("/assets/images/swift~dark.svg");

  --color-header-background: var(--color-header-background-light);
  --color-header-border: var(--color-nav-keyline);
  --color-header-link-hover: var(--color-link);
  --color-header-text: var(--color-header-text-light);
  --icon-close-url: var(--icon-close-url-light);
  --icon-menu-url: var(--icon-menu-url-light);
  --logo-url: var(--logo-url-light);

  font-family: -apple-system, BlinkMacSystemFont, "SF Hello", "Helvetica Neue",
    Helvetica, Arial, Verdana, sans-serif;
}

:host([data-color-scheme="dark"]) {
  --color-header-background: var(--color-header-background-dark);
  --color-header-text: var(--color-header-text-dark);
  --icon-close-url: var(--icon-close-url-dark);
  --icon-menu-url: var(--icon-menu-url-dark);
  --logo-url: var(--logo-url-dark);
}
@media screen and (prefers-color-scheme: dark) {
  :host([data-color-scheme="auto"]) {
    --color-header-background: var(--color-header-background-dark);
    --color-header-text: var(--color-header-text-dark);
    --icon-close-url: var(--icon-close-url-dark);
    --icon-menu-url: var(--icon-menu-url-dark);
    --logo-url: var(--logo-url-dark);
  }
}

header {
  background: var(--color-header-background);
  border-bottom: 1px solid var(--color-header-border);
  min-height: 52px;
}

a,
a:active,
a:hover,
a:visited {
  color: var(--color-header-text);
  text-decoration: none;
}

a:hover {
  color: var(--color-link);
}

.container {
  --padding-x: 22px;
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 auto;
  padding: 0 var(--padding-x);
  width: 980px;
}

#logo {
  --height: 25px;
  --width: 100px;

  background-image: var(--logo-url);
  background-position: -9px 13px;
  background-repeat: no-repeat;
  background-size: var(--width) var(--height);
  display: block;
  height: 52px;
  text-indent: -9999px;
  width: var(--width);
}

#small-menu-toggle {
  display: none;
}

.links {
  display: block;
  font-size: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.links li {
  display: inline-block;
}

.links li a {
  display: block;
  line-height: 52px;
  padding: 0 var(--padding-x);
  text-align: center;
}

.links li:first-child a {
  padding-left: 0;
}

.links li:last-child a {
  padding-right: 0;
}

@supports (padding: calc(max(0px))) {
  .container {
    padding-left: calc(max(var(--padding-x), env(safe-area-inset-left)));
    padding-right: calc(max(var(--padding-x), env(safe-area-inset-right)));
  }
}

@media only screen and (max-width: 1023px) {
  .container {
    box-sizing: border-box;
    width: 100%;
  }
}

@media only screen and (max-width: 767px) {
  .container {
    --padding-x: 16px;
  }

  #menu {
    display: none;
  }

  #small-menu-toggle {
    --toggle-size: 20px;
    -moz-appearance: none;
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    background-image: var(--icon-menu-url);
    background-repeat: no-repeat;
    background-size: var(--toggle-size) var(--toggle-size);
    border: none;
    cursor: pointer;
    display: block;
    height: var(--toggle-size);
    margin: 0;
    padding: 0;
    width: var(--toggle-size);
  }

  [data-small-menu-is-expanded] #small-menu-toggle {
    background-image: var(--icon-close-url);
  }

  [data-small-menu-is-expanded] #menu {
    --color-menu-border: var(--color-dropdown-border);
    display: block;
    flex-basis: 100%;
  }

  [data-small-menu-is-expanded] .links {
    border-top: 1px solid var(--color-menu-border);
    margin: 20px 0 30px 0;
  }

  [data-small-menu-is-expanded] .links li {
    border-bottom: 1px solid var(--color-menu-border);
    display: block;
  }

  [data-small-menu-is-expanded] .links li a {
    line-height: 1em;
    padding: 10px;
    text-align: left;
  }

  [data-small-menu-is-expanded] .links li:first-child a {
    padding-left: 10px;
  }

  [data-small-menu-is-expanded] .links li:last-child a {
    padding-right: 10px;
  }
}