/* ============================================================================
   Reader and audiobook player — TZ 4.2.2б / 4.2.2в.
   Every display setting is a CSS custom property so JS only ever writes tokens.
   ========================================================================= */

.reader {
  --r-size: 110%;
  --r-leading: 1.75;
  --r-width: 38rem;
  --r-bg: var(--paper);
  --r-fg: var(--ink);
  --r-muted: var(--muted);
  --r-font: var(--font-serif);
  background: var(--r-bg);
  color: var(--r-fg);
  padding-bottom: 8rem;   /* room for the sticky player */
}
.reader[data-theme="sepia"] { --r-bg: #F6EDDD; --r-fg: #3B3227; --r-muted: #6B5C48; }
.reader[data-theme="dark"]  { --r-bg: #1C1917; --r-fg: #E8E1D8; --r-muted: #A79E92; }
.reader[data-font="sans"]    { --r-font: var(--font-ui); }
.reader[data-font="legible"] { --r-font: "Atkinson Hyperlegible", var(--font-ui); }

.reader__bar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap; padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.reader__panel {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--white); padding: 1.125rem 1.25rem; margin-top: 1rem;
}
.reader[data-theme="dark"] .reader__panel { background: #262220; border-color: #3A342F; }

.reader__toc { margin: .5rem 0 0; padding-left: 1.25rem; }
.reader__toc li { margin-bottom: .35rem; }

.reader__settings {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}
.reader__settings label {
  display: block; font-size: .8rem; font-weight: 500; margin-bottom: .3rem;
}
.reader__settings input[type="range"] { width: 100%; min-height: 44px; }

.reader__surface { padding: 2.5rem 1.5rem 0; }
.reader__text {
  max-width: var(--r-width);
  margin: 0 auto;
  font-family: var(--r-font);
  font-size: var(--r-size);
  line-height: var(--r-leading);
}
.reader__text h1 { font-size: 1.9em; margin-bottom: 1.5rem; }
.reader__text h2 { font-size: 1.3em; margin: 2.5rem 0 1rem; }
.reader__chapter { scroll-margin-top: 5rem; }

.reader__p {
  margin: 0 0 1.1em;
  scroll-margin-top: 30vh;
  border-radius: 6px;
  padding: .1em .35em;
  margin-left: -.35em;
  transition: background-color .25s ease;
}
.reader__p:focus-visible { outline: 2px solid var(--accent); }
/* the paragraph currently being read aloud (TZ 4.2.2в) */
.reader__p.is-current { background: rgba(251, 73, 59, .12); }
.reader[data-theme="dark"] .reader__p.is-current { background: rgba(251, 73, 59, .22); }
.reader__p.is-bookmarked { box-shadow: inset 3px 0 0 var(--accent); }

/* paged reading mode */
.reader[data-mode="paged"] .reader__surface {
  height: calc(100vh - 14rem);
  overflow-y: auto;
  scroll-snap-type: y proximity;
}
.reader[data-mode="paged"] .reader__chapter { scroll-snap-align: start; }

/* ------------------------------------------------------------ word popup */
.word-pop {
  position: absolute; z-index: 40; max-width: 22rem;
  background: var(--white); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: .875rem 1rem;
}
.word-pop[hidden] { display: none; }
.word-pop__head { display: flex; align-items: baseline; gap: .5rem; }
.word-pop__head strong { font-family: var(--font-serif); font-size: 1.1rem; }
/* While the gloss is in flight the popup shows its shape, not an empty box. */
.word-pop.is-loading #wp-gloss,
.word-pop.is-loading #wp-source { min-height: 1rem; border-radius: 4px;
  background: linear-gradient(90deg, #E7DDD0 25%, #EFE7DA 37%, #E7DDD0 63%);
  background-size: 400% 100%; animation: skeleton-shimmer 1.4s ease-in-out infinite;
  color: transparent; }
.word-pop.is-loading #wp-gloss { width: 100%; }
.word-pop.is-loading #wp-source { width: 55%; }
.word-pop.is-loading #wp-link { visibility: hidden; }
@media (prefers-reduced-motion: reduce) {
  .word-pop.is-loading #wp-gloss,
  .word-pop.is-loading #wp-source { animation: none; background: #E7DDD0; }
}

.word-pop__head button {
  margin-left: auto; border: 0; background: none; cursor: pointer;
  font-size: 1.25rem; line-height: 1; color: var(--muted);
  min-width: 32px; min-height: 32px;
}

/* --------------------------------------------------------------- player */
.player {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: var(--ink); color: #F3EADD;
  border-top: 1px solid rgba(255,255,255,.12);
}
.player__inner {
  display: flex; align-items: center; gap: 1rem; padding: .75rem 1.5rem;
  flex-wrap: wrap;
}
.player__play {
  width: 44px; height: 44px; flex: none; border-radius: 99px;
  border: 0; background: var(--accent); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.player__icon {
  width: 0; height: 0; margin-left: 3px;
  border-left: 13px solid #fff;
  border-top: 8px solid transparent; border-bottom: 8px solid transparent;
}
.player.is-playing .player__icon {
  width: 12px; height: 14px; margin-left: 0; border: 0;
  border-left: 4px solid #fff; border-right: 4px solid #fff;
  background: transparent; box-sizing: content-box; padding: 0 2px;
}
.player__body { flex: 1 1 16rem; min-width: 0; }
.player__meta { display: flex; align-items: center; gap: .75rem; }
.player__meta select {
  background: transparent; color: #F3EADD; border: 1px solid rgba(255,255,255,.25);
  border-radius: 6px; padding: .25rem .5rem; font-size: .85rem;
  min-height: 36px; max-width: 18rem;
}
.player__meta select option { color: #2C2622; }
.player__seek { width: 100%; margin-top: .4rem; min-height: 32px; }
.player__controls { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.player__controls select, .player__controls input[type="range"] {
  background: transparent; color: #F3EADD;
  border: 1px solid rgba(255,255,255,.25); border-radius: 6px;
  padding: .2rem .4rem; min-height: 36px; width: auto;
}
.player__controls select option { color: #2C2622; }
.player .small.faint { color: #C9BBA8; white-space: nowrap; }

@media (max-width: 640px) {
  /* The control bar was taking three stacked rows. One row that scrolls
     sideways keeps every control reachable without stealing the screen. */
  .reader__bar {
    flex-wrap: nowrap; overflow-x: auto; gap: .5rem;
    padding: .625rem 0; scrollbar-width: none;
  }
  .reader__bar::-webkit-scrollbar { display: none; }
  .reader__bar .cluster { flex-wrap: nowrap; gap: .5rem; }
  .reader__bar .btn { white-space: nowrap; padding: .45rem .75rem; }
  .reader__bar .btn:first-child { max-width: 11rem; overflow: hidden;
                                  text-overflow: ellipsis; display: block; }

  .reader__surface { padding: 1.5rem 1rem 0; }
  .reader { padding-bottom: 8.5rem; }
  .reader__settings { grid-template-columns: 1fr; }

  .player__inner {
    display: grid; grid-template-columns: auto 1fr;
    align-items: center; padding: .625rem 1rem; gap: .375rem .75rem;
  }
  .player__play { grid-row: 1 / span 2; }
  .player__body { grid-column: 2; }
  .player__meta select { max-width: 11rem; font-size: .8rem; }
  .player .small.faint { white-space: nowrap; font-size: .75rem; }
  /* Phones have hardware volume keys — the slider is dead weight here. */
  .player__vol { display: none; }
  .player__controls { grid-column: 2; gap: .375rem; margin-left: 0; }
}

/* fullscreen reading */
.reader:fullscreen { background: var(--r-bg); overflow-y: auto; padding: 2rem 0 8rem; }
.reader:fullscreen .reader__bar { padding-inline: 1.5rem; }