html.reader-html,
html.reader-html body.reader-body {
  margin: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
}

body.reader-body {
  font-family: "Plus Jakarta Sans", Trebuchet MS, sans-serif;
}

.reader-overlay {
  background: #f7f5ed;
}

.reader-topbar .reader-back,
.reader-topbar .reader-close {
  text-decoration: none;
  color: inherit;
}

.story-page {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding-top: 28px;
  padding-bottom: 24px;
}

.story-page h1 {
  margin: 8px 0 14px;
}

.story-player {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #14161a;
  --ink-soft: #6b7280;
  --accent: #0f766e;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --active: #ffe566;
  --active-ink: #14161a;
  --shadow: 0 8px 28px rgba(20, 22, 26, 0.1);
  --radius: 16px;
  --font: "Plus Jakarta Sans", system-ui, sans-serif;
  flex: 1;
  min-width: 0;
  width: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 10px;
}

.story-player .player {
  min-width: 0;
  display: flex;
  justify-content: center;
}

.story-player .player__frame {
  --player-max-h: min(30vh, 280px);
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: #111;
  aspect-ratio: 16 / 9;
  width: min(100%, calc(var(--player-max-h) * 16 / 9));
  height: auto;
  margin-inline: auto;
  box-shadow: var(--shadow);
}

.story-player .player__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  cursor: pointer;
}

.story-player .player__control {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: opacity 0.25s ease, transform 0.2s ease, background 0.2s ease;
  z-index: 2;
}

.story-player .player__control:hover {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.05);
}

.story-player .player__control .icon {
  width: 28px;
  height: 28px;
}

.story-player .player__control .icon--pause {
  display: none;
}

.story-player .player__control.is-playing .icon--play {
  display: none;
}

.story-player .player__control.is-playing .icon--pause {
  display: block;
}

.story-player .player__frame.is-playing .player__control {
  opacity: 0;
  pointer-events: none;
}

.story-player .player__frame:hover .player__control,
.story-player .player__control:focus-visible {
  opacity: 1;
  pointer-events: auto;
}

.story-player .reader {
  min-height: 0;
  min-width: 0;
  width: 100%;
  display: flex;
  flex: 0 1 auto;
  overflow: hidden;
}

.story-player .transcript {
  flex: 0 1 auto;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 0;
  box-sizing: border-box;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 18px;
  overflow: hidden;
  display: grid;
  justify-items: stretch;
  align-items: center;
  font-family: var(--font);
  color: var(--ink);
  outline: none;
  position: relative;
}

.story-player .transcript__loading {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
  text-align: center;
}

.story-player .transcript__block {
  margin: 0;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-wrap: break-word;
  font-size: var(--story-font, clamp(1.25rem, 3.4vw, 1.75rem));
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.015em;
  text-align: center;
  grid-area: 1 / 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
  pointer-events: none;
}

.story-player .transcript__block:not(.is-visible) {
  position: absolute;
  inset-inline: 0;
  width: auto;
}

.story-player .transcript__block.is-visible {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.story-player .word {
  display: inline;
  border-radius: 5px;
  padding: 0 1px;
  transition: background-color 0.12s ease, color 0.12s ease, box-shadow 0.12s ease;
}

.story-player .word.has-media {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: rgba(15, 118, 110, 0.35);
  text-underline-offset: 4px;
  text-decoration-thickness: 1.5px;
}

.story-player.is-learn .word.has-media {
  background: #fff6d8;
  text-decoration-color: #e7bd62;
}

.story-player .word.has-media:hover {
  background: var(--accent-soft);
}

.story-player .word.active {
  background: var(--active);
  color: var(--active-ink);
  box-shadow: 0 0 0 3px var(--active);
  text-decoration: none;
}

.story-player.is-parent .player {
  display: none;
}

.story-player.is-parent .reader {
  flex: 1;
}

.story-player.is-parent .transcript {
  flex: 1;
  display: block;
  overflow: auto;
  place-items: unset;
  text-align: start;
}

.story-player.is-parent .transcript__block,
.story-player.is-parent .transcript__block:not(.is-visible) {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
  position: static;
  inset-inline: auto;
  width: 100%;
  display: block;
  max-width: min(44ch, 100%);
  margin: 0 auto 1.1em;
  text-align: start;
  font-weight: 500;
}

.popup-backdrop {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: transparent;
}

.popup {
  position: fixed;
  z-index: 120;
  min-width: 160px;
  max-width: min(300px, calc(100vw - 24px));
  padding: 12px 14px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 10px 32px rgba(20, 22, 26, 0.18);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  pointer-events: none;
}

.popup__close {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 1;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: #6b7280;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.popup.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.popup[hidden] {
  display: none;
}

.popup:not([hidden]) {
  display: flex;
}

.popup--visual {
  min-width: 200px;
  max-width: min(340px, calc(100vw - 24px));
  padding: 10px;
}

.popup__media {
  display: none;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  background: #111;
  line-height: 0;
}

.popup__media:not([hidden]) {
  display: block;
}

.popup__media img,
.popup__media video {
  display: block;
  width: 100%;
  max-height: min(200px, 32vh);
  object-fit: cover;
}

.popup__row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding-inline: 4px;
}

.popup__speak {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(15, 118, 110, 0.12);
  color: #0f766e;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.popup__speak[hidden] {
  display: none;
}

.popup__speak svg {
  width: 22px;
  height: 22px;
}

.popup__body {
  min-width: 0;
  flex: 1;
  padding-right: 20px;
}

.popup__word {
  font-size: 1.2rem;
  font-weight: 600;
  color: #14161a;
  word-break: break-word;
}

.popup__text {
  margin: 4px 0 0;
  font-size: 0.9rem;
  line-height: 1.35;
  color: #6b7280;
}

.popup__text[hidden] {
  display: none;
}

.main-play.playing {
  background: #315c70;
}

@media (max-width: 780px) {
  html.reader-html,
  html.reader-html body.reader-body {
    height: auto;
    overflow: auto;
  }

  .story-page {
    padding-top: 20px;
    padding-bottom: 16px;
  }

  .story-player .player__frame {
    --player-max-h: min(28vh, 220px);
  }
}