/* Mobile companion only, matching the breakpoint where the article TOC hides. */
@media (min-width: 641px) {
  .reading-road, .reading-road-return { display: none !important; }
}
.reading-road {
  --road-violet: #5955ef;
  --road-ink: #242137;
  position: fixed;
  z-index: 105;
  left: 50%;
  bottom: max(18px, env(safe-area-inset-bottom));
  width: min(420px, calc(100% - 32px));
  color: var(--road-ink);
  font-family: inherit;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(-50%, 20px, 0);
  transition: opacity .35s ease, transform .45s cubic-bezier(.16,1,.3,1), visibility .35s;
}
.reading-road.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(-50%, 0, 0);
}
.reading-road *, .reading-road *::before, .reading-road *::after { box-sizing: border-box; }
.reading-road [hidden] { display: none !important; }
.reading-road__shell {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 70px;
  padding: 13px 10px 13px 24px;
  border: 1px solid rgba(89,85,239,.17);
  border-radius: 22px;
  background: rgba(255,255,255,.94);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  box-shadow: 0 8px 40px rgba(39,28,84,.14), 0 2px 8px rgba(39,28,84,.04);
}
.reading-road__track {
  position: relative;
  flex: 1 1 auto;
  height: 31px;
  min-width: 0;
  margin-right: 9px;
  isolation: isolate;
}
.reading-road__track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 15px;
  height: 17px;
  border-radius: 9px;
  background: #eee9ff;
}
.reading-road__track::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 23px 8px auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(89,85,239,.44) 0 7px, transparent 7px 14px);
}
.reading-road__distance {
  position: absolute;
  left: 0;
  top: 15px;
  width: 100%;
  height: 17px;
  border-radius: 9px;
  transform: scaleX(0);
  transform-origin: left center;
  background: #d3cdff;
}
.reading-road__car {
  position: absolute;
  z-index: 3;
  left: -7px;
  bottom: -1px;
  display: block;
  width: 61px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 3px 3px rgba(36,33,55,.16));
  will-change: transform;
}
.reading-road__flag {
  position: absolute;
  z-index: 2;
  right: 1px;
  bottom: 2px;
  width: 22px;
  height: 32px;
  color: var(--road-ink);
}
.reading-road__controls { display: flex; gap: 2px; flex: 0 0 auto; }
.reading-road__control {
  display: grid;
  place-items: center;
  width: 30px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #716a8d;
  cursor: pointer;
  transition: background .18s ease, color .18s ease;
}
.reading-road__control:hover { background: #f1eeff; color: var(--road-violet); }
.reading-road__control svg { width: 16px; height: 16px; }
.reading-road button:focus-visible, .reading-road a:focus-visible,
.reading-road-return:focus-visible { outline: 3px solid #5955ef; outline-offset: 4px; }
.reading-road__inspector {
  position: absolute;
  z-index: 1;
  left: 10px;
  bottom: 37px;
  width: 79px;
  height: 100px;
  object-fit: contain;
  object-position: center bottom;
  transform: translateY(36px);
  transition: transform .75s cubic-bezier(.16,1,.3,1), opacity .25s ease;
  pointer-events: none;
}
.reading-road.is-intro .reading-road__inspector { transform: translateY(0); }
.reading-road__speech {
  position: absolute;
  z-index: 3;
  left: 65px;
  bottom: 82px;
  width: max-content;
  max-width: calc(100% - 85px);
  padding: 11px 15px;
  border: 1px solid rgba(89,85,239,.12);
  border-radius: 17px 17px 17px 4px;
  background: #eee9ff;
  box-shadow: 0 6px 20px rgba(39,28,84,.07);
  color: #453da6;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .25s ease, transform .35s ease, visibility .25s;
  pointer-events: none;
}
.reading-road.is-intro .reading-road__speech { opacity: 1; visibility: visible; transform: none; }
.reading-road__reward {
  position: relative;
  z-index: 3;
  margin: 0 0 9px;
  padding: 18px 20px;
  border: 1px solid rgba(89,85,239,.14);
  border-radius: 22px;
  background: #eee9ff;
  box-shadow: 0 10px 36px rgba(39,28,84,.12);
}
.reading-road__reward h2 { margin: 0 0 6px; color: var(--road-ink); font-size: 18px; font-weight: 750; line-height: 1.3; letter-spacing: -.4px; }
.reading-road__reward p { margin: 0 0 13px; color: #645b7b; font-size: 12px; line-height: 1.55; }
.reading-road__reward a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 15px;
  border: 1px solid #514bdf;
  border-radius: 12px;
  color: #fff;
  background: #5955ef;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 4px 10px rgba(89,85,239,.17);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.4;
  text-decoration: none;
}
.reading-road__reward a:hover { background: #4d46d7; }
.reading-road__reward a span { color: rgba(255,255,255,.76); font-size: 11px; font-weight: 500; }
.reading-road.is-finished .reading-road__inspector { opacity: 0; }
.reading-road__arrived { flex: 0 0 auto; margin: 0; color: #453da6; font-size: 13px; line-height: 1.4; font-weight: 600; }
.reading-road__reopen {
  border: 0;
  padding: 6px 0;
  background: transparent;
  color: #5955ef;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}
.reading-road.is-minimized { width: 200px; }
.reading-road.is-minimized .reading-road__shell { min-height: 49px; gap: 6px; padding: 6px 7px 6px 15px; border-radius: 18px; }
.reading-road.is-minimized .reading-road__inspector,
.reading-road.is-minimized .reading-road__speech,
.reading-road.is-minimized .reading-road__reward,
.reading-road.is-minimized .reading-road__arrived { display: none; }
.reading-road.is-minimized .reading-road__car { width: 43px; height: 28px; }
.reading-road.is-minimized .reading-road__control { width: 27px; height: 32px; }
.reading-road.is-minimized .reading-road__flag { height: 26px; width: 18px; }
.reading-road.is-minimized .reading-road__track { height: 29px; }
.reading-road__sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.reading-road-return {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  padding: 9px 13px;
  border: 1px solid #d8d2ff;
  border-radius: 11px;
  color: #4c43c5;
  background: #eee9ff;
  font-family: inherit;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.4;
  cursor: pointer;
}
@media (max-width: 440px) {
  .reading-road { width: calc(100% - 24px); bottom: max(12px, env(safe-area-inset-bottom)); }
  .reading-road__shell { padding-left: 18px; gap: 8px; min-height: 65px; }
  .reading-road__car { width: 54px; height: 33px; }
  .reading-road__inspector { left: 14px; width: 67px; height: 87px; bottom: 35px; }
  .reading-road__speech { left: 65px; bottom: 75px; font-size: 11px; padding: 9px 12px; }
  .reading-road__reward { padding: 16px; }
  .reading-road__reward h2 { font-size: 17px; }
}
@media (max-height: 550px) {
  .reading-road__inspector, .reading-road__speech { display: none; }
  .reading-road__shell { min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
  .reading-road__reward { padding: 12px 16px; max-height: calc(100dvh - 130px); overflow-y: auto; }
  .reading-road__reward p { margin-bottom: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .reading-road, .reading-road * { transition: none !important; animation: none !important; }
  .reading-road__car { will-change: auto; }
}