:root {
  --reader-font-size: 18px;
}

* {
  box-sizing: border-box;
}

:focus-visible {
  outline: 3px solid rgb(15 118 110 / 0.75);
  outline-offset: 3px;
}

body.is-night {
  color-scheme: dark;
}

body.is-nav-collapsed {
  display: block;
}

body.is-nav-collapsed .app-header {
  position: sticky;
  top: 0;
  height: auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  border-right: 0;
  border-bottom: 1px solid rgb(226 232 240);
  padding: 0.5rem 0.75rem;
}

body.is-nav-collapsed .app-header h1,
body.is-nav-collapsed .app-header > div:first-child .eyebrow,
body.is-nav-collapsed .brand-lockup > div,
body.is-nav-collapsed .tab span {
  display: none;
}

body.is-night.is-nav-collapsed .app-header {
  border-bottom-color: rgb(30 41 59);
}

body.is-nav-collapsed .app-header > div:first-child {
  border-bottom: 0;
  padding: 0;
}

body.is-nav-collapsed .brand-lockup {
  justify-content: center;
}

body.is-nav-collapsed .brand-logo {
  width: 2.5rem;
  height: 2.5rem;
}

body.is-nav-collapsed .tab {
  justify-content: center;
  padding-inline: 0;
}

body.is-nav-collapsed .tab svg {
  width: 1.25rem;
  height: 1.25rem;
}

body.is-nav-collapsed .header-controls {
  margin-top: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-items: initial;
}

body.is-nav-collapsed .nav-toggle {
  min-width: 0;
}

body.is-nav-collapsed .appearance-panel {
  top: calc(100% + 0.5rem);
  right: 0;
  bottom: auto;
  left: auto;
}

body.is-nav-collapsed .tabs {
  display: none;
}

button,
input,
select {
  font: inherit;
}

button:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input[type="range"] {
  padding-inline: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 1040px) {
  body.is-nav-collapsed .appearance-wrap {
    display: grid;
  }
}