body.reading-mode-active {
  overflow: hidden;
  overscroll-behavior: none;
}

body.reading-mode-active::before {
  position: fixed;
  inset: 0;
  z-index: 9997;
  background: var(--background-color);
  content: "";
}

body.reading-mode-active footer {
  display: none !important;
  visibility: hidden;
  pointer-events: none;
}

body.reading-mode-active header {
  border-bottom-color: transparent !important;
  pointer-events: none;
}

body.reading-mode-active header > div,
body.reading-mode-active header nav a {
  opacity: 0;
  pointer-events: none;
}

body.reading-mode-active .theme-toggle {
  position: fixed;
  top: 0.85rem;
  right: max(1rem, calc((100vw - 760px) / 2));
  z-index: 10000;
  opacity: 1;
  pointer-events: auto;
}

article.reading-mode-active {
  max-width: 760px;
  margin: 0 auto;
}

.post-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.post-title-row h3 {
  flex: 1 1 22rem;
  min-width: 0;
}

.reading-mode-hint {
  flex: 0 0 auto;
  color: var(--text-color);
  font-family: DotGothic16, monospace;
  font-size: 0.78rem;
  letter-spacing: 0rem;
  word-spacing: -0.2rem;
  max-width: 100%;
  opacity: 0.48;
  white-space: nowrap;
}

.reading-mode-hint kbd {
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  font-family: inherit;
  font-size: 0.72rem;
  padding: 0.01rem 0.17rem;
}

.reading-mode-context {
  position: fixed;
  top: 0.85rem;
  left: 50%;
  z-index: 9999;
  width: min(760px, calc(100vw - 2rem));
  color: var(--text-color);
  font-size: 0.82rem;
  line-height: 1.2;
  opacity: 0.58;
  overflow: hidden;
  pointer-events: none;
  text-overflow: ellipsis;
  transform: translateX(-50%);
  white-space: nowrap;
}

.reading-mode-chunk {
  display: grid;
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 9998;
  width: min(760px, calc(100vw - 2rem));
  min-height: 100vh;
  min-height: 100dvh;
  opacity: 0;
  place-items: center;
  pointer-events: none;
  transform: translateX(-50%);
  visibility: hidden;
}

.reading-mode-chunk.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%);
  visibility: visible;
}

.reading-mode-chunk.is-active > * {
  animation: reading-mode-soft-arrival 55ms linear;
  transform: translateY(var(--reading-drag-y, 0px));
  transition: opacity 60ms linear, transform 25ms linear;
}

.reading-mode-chunk.is-wheel-primed > * {
  opacity: 0.72;
}

.reading-mode-chunk > * {
  width: 100%;
}

.reading-mode-text-chunk,
.reading-mode-math-chunk,
.reading-mode-image-chunk,
.reading-mode-chunk .katex-display {
  display: block;
  text-align: center;
}

.reading-mode-image-chunk img {
  display: block;
  width: auto !important;
  max-width: min(100%, 720px);
  max-height: 72vh;
  margin: 0 auto;
  object-fit: contain;
  padding-bottom: 0 !important;
}

.reading-mode-math-chunk {
  overflow-x: auto;
}

article.reading-mode-active .reading-mode-math-chunk .katex,
article.reading-mode-active .reading-mode-chunk .katex-display .katex {
  font-size: clamp(1.15rem, 2.35vw, 1.55rem) !important;
}

.reading-mode-chunk h3,
.reading-mode-chunk h4,
.reading-mode-chunk h5,
.reading-mode-chunk h6,
.reading-mode-chunk p,
.reading-mode-chunk li,
.reading-mode-text-chunk {
  font-size: clamp(1.05rem, 2vw, 1.35rem) !important;
  line-height: 1.6;
  text-align: left !important;
  text-justify: auto;
}

.reading-mode-chunk .reading-mode-title-chunk {
  font-size: clamp(1.45rem, 3.6vw, 2.35rem) !important;
  line-height: 1.25;
  text-align: left !important;
}

.reading-mode-chunk blockquote {
  box-sizing: border-box;
  overflow-wrap: break-word;
  max-width: 100%;
  padding: 0.35rem 2.25rem;
  text-align: left;
}

.reading-mode-chunk blockquote p {
  text-align: left;
}

.reading-mode-progress {
  position: fixed;
  bottom: 0.85rem;
  left: 50%;
  z-index: 9999;
  width: min(760px, calc(100vw - 2rem));
  height: 2px;
  background: color-mix(in srgb, var(--text-color) 16%, transparent);
  pointer-events: none;
  transform: translateX(-50%);
}

body.reading-mode-wheel-primed .reading-mode-progress {
  height: 3px;
}

.reading-mode-progress-fill {
  width: 0%;
  height: 100%;
  background: var(--text-color);
  transition: width 70ms linear;
}

.reading-mode-key-hint {
  position: fixed;
  right: max(1rem, calc((100vw - 760px) / 2));
  bottom: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-color);
  font-family: DotGothic16, monospace;
  font-size: 0.8rem;
  letter-spacing: 0rem;
  gap: 0.1rem;
  pointer-events: none;
  text-transform: lowercase;
}

.reading-mode-keys {
  display: flex;
  gap: 0.32rem;
}

.reading-mode-key {
  box-sizing: border-box;
  display: grid;
  position: relative;
  width: 1.1rem;
  height: 1.45rem;
  border: 1.5px solid currentColor;
  line-height: 1;
  place-items: center;
  transform-origin: center;
}

.reading-mode-key.is-pressed {
  background-color: var(--text-color);
  border-color: var(--background-color);
  color: var(--background-color);
  transform: scale(1.10);
}

.reading-mode-key-label {
  line-height: 1;
}

@media (max-width: 767.98px) {
  .reading-mode-key-hint {
    display: none;
  }
}

@keyframes reading-mode-soft-arrival {
  from {
    opacity: 0.82;
  }

  to {
    opacity: 1;
  }
}