.fra27-context-visual {
  width: 100%;
}

.fra27-visual {
  --fra27-blue: #2563eb;
  --fra27-blue-soft: #dbeafe;
  --fra27-teal: #0f766e;
  --fra27-teal-soft: #ccfbf1;
  --fra27-gold: #b45309;
  --fra27-gold-soft: #fef3c7;
  --fra27-ink: #172554;
  --fra27-line: #b8c8df;
  color: var(--fra27-ink);
  width: min(100%, 900px);
  margin-inline: auto;
}

.fra27-scene,
.fra27-symbolic-card,
.fra27-context-card,
.fra27-repair-model,
.fra27-share-workspace {
  border: 1px solid #d7e2ef;
  border-radius: 24px;
  background: linear-gradient(145deg, #ffffff, #f7fbff);
  box-shadow: 0 18px 50px rgb(15 23 42 / 9%);
  padding: clamp(18px, 4vw, 36px);
}

.fra27-fraction {
  display: inline-grid;
  grid-template-rows: auto 2px auto;
  min-width: 2.1em;
  vertical-align: middle;
  text-align: center;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.fra27-fraction > b:first-child {
  color: var(--fra27-blue);
}

.fra27-fraction > b:last-child {
  color: var(--fra27-teal);
}

.fra27-fraction > i {
  display: block;
  background: currentColor;
  border-radius: 99px;
  margin: 3px 0;
}

.fra27-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 2.2vw, 24px);
  min-height: 92px;
  font-size: clamp(1.45rem, 4vw, 2.6rem);
  font-weight: 800;
}

.fra27-equation > strong,
.fra27-divisor {
  color: var(--fra27-gold);
}

.fra27-result {
  display: grid;
  place-items: center;
  min-width: 74px;
  min-height: 74px;
  border: 2px dashed #94a3b8;
  border-radius: 18px;
  color: #64748b;
}

.fra27-result.is-visible {
  border-style: solid;
  border-color: #86efac;
  background: #f0fdf4;
}

.fra27-strip {
  display: grid;
  grid-template-columns: repeat(var(--fra27-parts), minmax(0, 1fr));
  width: 100%;
  min-height: 64px;
  overflow: hidden;
  border: 3px solid #334155;
  border-radius: 14px;
  background: #fff;
}

.fra27-strip > i {
  border-right: 1px solid #94a3b8;
  background: #fff;
}

.fra27-strip > i:last-child {
  border-right: 0;
}

.fra27-strip > i.is-selected {
  background:
    repeating-linear-gradient(135deg, rgb(37 99 235 / 20%) 0 7px, rgb(37 99 235 / 6%) 7px 14px),
    var(--fra27-blue-soft);
}

.fra27-strip > i.is-share-boundary {
  border-left: 5px solid var(--fra27-gold);
}

.fra27-model-label,
.fra27-model-note {
  margin: 0 0 16px;
  color: #475569;
  text-align: center;
  font-weight: 700;
}

.fra27-model-note {
  margin: 16px 0 0;
}

.fra27-shelf-pair,
.fra27-share-pair,
.fra27-method-transform,
.fra27-direct-share,
.fra27-method-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.fra27-shelf-pair span,
.fra27-method-transform span,
.fra27-direct-share span,
.fra27-method-card span,
.fra27-method-card b {
  border-radius: 14px;
  padding: 10px 14px;
  background: #eef5ff;
  font-weight: 750;
}

.fra27-method-transform {
  margin-top: 22px;
}

.fra27-method-transform .is-locked {
  border: 2px solid var(--fra27-blue);
  background: var(--fra27-blue-soft);
}

.fra27-method-transform .fra27-reciprocal,
.fra27-reciprocal {
  border: 2px solid #f59e0b;
  background: var(--fra27-gold-soft);
}

.fra27-share-pair {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.fra27-handoff {
  display: grid;
  gap: 22px;
}

.fra27-rule-card {
  justify-self: center;
  border: 2px solid #bfdbfe;
  border-radius: 18px;
  padding: 16px 24px;
  background: #eff6ff;
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 800;
}

.fra27-light-strip-wrap {
  position: relative;
  margin-top: 28px;
  padding-bottom: 44px;
}

.fra27-cut-mark {
  position: absolute;
  bottom: 8px;
  translate: -50% 0;
  color: #475569;
  font-size: 0.86rem;
  font-weight: 750;
}

.fra27-cut-mark::before {
  content: "";
  position: absolute;
  bottom: 28px;
  left: 50%;
  width: 3px;
  height: 64px;
  background: var(--fra27-gold);
  border-radius: 99px;
}

.fra27-cut-mark.mark-one { left: 33.333%; }
.fra27-cut-mark.mark-two { left: 66.666%; }

.fra27-cut-impossible {
  position: absolute;
  inset: 18px 10% auto;
  z-index: 2;
  border-radius: 999px;
  padding: 8px 14px;
  background: #fff7ed;
  color: #9a3412;
  text-align: center;
}

.fra27-share-workspace {
  display: grid;
  gap: 20px;
}

.fra27-tile-bank > strong,
.fra27-share-tray > strong {
  display: block;
  margin-bottom: 10px;
  color: #334155;
}

.fra27-tile-bank > div {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.fra27-share-tile {
  display: inline-grid;
  grid-template-rows: auto 2px auto;
  place-items: center;
  min-width: 48px;
  min-height: 58px;
  border: 2px solid #60a5fa;
  border-radius: 10px;
  background: repeating-linear-gradient(135deg, #eff6ff 0 7px, #dbeafe 7px 14px);
  color: #1d4ed8;
  font-weight: 800;
  cursor: pointer;
  touch-action: manipulation;
}

.fra27-share-tile > i {
  width: 24px;
  height: 2px;
  background: currentColor;
}

.fra27-share-tile.is-active,
.fra27-share-tile[aria-pressed="true"] {
  outline: 4px solid #fbbf24;
  outline-offset: 2px;
}

.fra27-share-tile[data-tray]:not([data-tray="-1"]) {
  opacity: 0.56;
}

.fra27-trays {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.fra27-share-tray {
  min-height: 150px;
  border: 2px dashed #94a3b8;
  border-radius: 16px;
  padding: 12px;
  background: #f8fafc;
}

.fra27-share-tray > button {
  width: 100%;
  min-height: 44px;
  border: 1px solid #93c5fd;
  border-radius: 10px;
  background: #fff;
  color: #1e40af;
  font-weight: 750;
  cursor: pointer;
}

.fra27-tray-drop {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 5px;
  min-height: 54px;
  margin-bottom: 8px;
}

.fra27-tray-drop > span {
  display: inline-grid;
  grid-template-rows: auto 1px auto;
  min-width: 31px;
  border: 1px solid #60a5fa;
  border-radius: 6px;
  padding: 3px;
  background: var(--fra27-blue-soft);
  text-align: center;
  font-size: 0.68rem;
}

.fra27-tray-drop > span > i {
  background: currentColor;
}

.fra27-share-status {
  min-height: 1.5em;
  margin: 0;
  color: #475569;
}

.fra27-context-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 4vw, 40px);
}

.fra27-source-container {
  display: grid;
  justify-items: center;
  gap: 8px;
}

.fra27-bottle {
  display: block;
  width: 66px;
  height: 105px;
  border: 3px solid #0f766e;
  border-radius: 14px 14px 24px 24px;
  background: linear-gradient(to top, #5eead4 0 66%, #f0fdfa 66%);
}

.fra27-destinations {
  display: flex;
  align-items: end;
  gap: 10px;
}

.fra27-jar {
  display: grid;
  place-items: end center;
  width: 54px;
  height: 75px;
  border: 3px solid #64748b;
  border-radius: 8px 8px 18px 18px;
  overflow: hidden;
  background: #fff;
}

.fra27-jar > i {
  width: 100%;
  height: 0;
  background: #5eead4;
  transition: height 480ms ease;
}

.fra27-jar.is-filled > i { height: 40%; }

.fra27-jar > small {
  position: absolute;
  translate: 0 22px;
  color: #475569;
}

.fra27-repair-model {
  display: grid;
  gap: 18px;
  text-align: center;
}

.fra27-repair-model > p {
  margin: 0;
  color: #475569;
  font-weight: 700;
}

.fra27-contrast {
  grid-template-columns: 1fr 1fr;
}

.fra27-contrast > div {
  display: grid;
  align-content: start;
  gap: 10px;
  border-radius: 18px;
  padding: 16px;
}

.fra27-contrast .is-wrong {
  border: 2px solid #fecaca;
  background: #fff1f2;
  color: #9f1239;
}

.fra27-contrast .is-right {
  border: 2px solid #86efac;
  background: #f0fdf4;
  color: #166534;
}

.fra27-visual button:focus-visible,
.fra27-visual [tabindex]:focus-visible {
  outline: 4px solid #f59e0b;
  outline-offset: 3px;
}

@media (max-width: 600px) {
  .fra27-scene,
  .fra27-symbolic-card,
  .fra27-context-card,
  .fra27-repair-model,
  .fra27-share-workspace {
    border-radius: 18px;
    padding: 16px;
  }

  .fra27-trays,
  .fra27-share-pair,
  .fra27-contrast {
    grid-template-columns: 1fr;
  }

  .fra27-share-tray {
    min-height: 118px;
  }

  .fra27-context-card {
    flex-direction: column;
  }

  .fra27-equation {
    gap: 8px;
  }

  .fra27-result {
    min-width: 58px;
    min-height: 58px;
  }

  .fra27-method-card {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fra27-visual *,
  .fra27-visual *::before,
  .fra27-visual *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}