/* Chocolate bar styles + animations */

.chocolate-bar {
  position: relative;
  display: inline-block;
  border-radius: 12px;
  overflow: visible;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.55));
  transition: width 1.2s ease-in-out, height 1.2s ease-in-out;
  width: 300px;
  height: 300px;
}

/* Piece slides across neighbour columns on symbol-compare slides */
.chocolate-bar--segment-flight {
  z-index: 56;
}

.chocolate-bar--small { width: 300px; height: 300px; }
.chocolate-bar--large { width: 460px; height: 460px; }
.chocolate-bar--normalized { width: 460px; height: 460px; }

.chocolate-bar-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.chocolate-bar-outline {
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.chocolate-bar--outline-pulse .chocolate-bar-outline {
  opacity: 1;
  animation: barOutlinePulse 1.4s ease-in-out infinite;
  animation-delay: var(--outline-pulse-delay, 0s);
}

@keyframes barOutlinePulse {
  0%, 100% {
    stroke: rgba(255, 255, 255, 0.6);
    stroke-width: 4;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.5));
  }
  50% {
    stroke: rgba(255, 220, 130, 1);
    stroke-width: 7;
    filter: drop-shadow(0 0 14px rgba(255, 220, 130, 0.95));
  }
}

.chocolate-bar--selected {
  animation: barSelectedGlow 1.4s ease-in-out infinite;
}

.chocolate-bar--resize-animate {
  animation: chocolateResizeBox var(--resize-duration, 1.2s) ease-in-out forwards;
}

@keyframes chocolateResizeBox {
  from {
    width: var(--resize-from-size, 300px);
    height: var(--resize-from-size, 300px);
  }
  to {
    width: var(--resize-to-size, 300px);
    height: var(--resize-to-size, 300px);
  }
}

@keyframes barSelectedGlow {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(255, 159, 26, 0.6)) drop-shadow(0 8px 18px rgba(0, 0, 0, 0.55)); }
  50%      { filter: drop-shadow(0 0 26px rgba(255, 159, 26, 0.95)) drop-shadow(0 8px 18px rgba(0, 0, 0, 0.55)); }
}

.chocolate-bar--faded { opacity: 0.72; }

.bar-with-label:has(.chocolate-bar--dim-labels) .bar-labels-row,
.bar-with-label:has(.chocolate-bar--dim-labels) .bar-fraction-area {
  opacity: 0.45;
  filter: saturate(0.45);
}

.chocolate-bar--teeter { animation: barTeeter 0.45s ease-in-out 0s 2; }

@keyframes barTeeter {
  0%, 100% { transform: rotate(0deg); }
  20% { transform: rotate(-2deg); }
  40% { transform: rotate(2deg); }
  60% { transform: rotate(-1.5deg); }
  80% { transform: rotate(1.5deg); }
}

.chocolate-bar--tappable { cursor: pointer; }

/* Finger cue when the learner must tap a chocolate segment. */
.chocolate-bar--tap-hint::after {
  content: '';
  position: absolute;
  right: -28px;
  bottom: -28px;
  width: 74px;
  height: 74px;
  background-image: url('../assets/images/fingerTap.gif');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.8;
  pointer-events: none;
  z-index: 6;
  animation: tapHintBob 1.2s ease-in-out infinite;
}

@keyframes tapHintBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* One-shot overlap animation for S15/S29: move, hold for comparison, then return. */
.chocolate-bar--keyframe-slide {
  transform-origin: var(--slide-origin, top left);
  animation: chocolateBarSlideToTarget var(--slide-duration, 4.8s) ease-in-out both;
}

@keyframes chocolateBarSlideToTarget {
  0%   { transform: translate(0px, 0px) scale(var(--slide-scale, 1)); }
  30%  { transform: translate(var(--slide-dx, 0px), var(--slide-dy, 0px)) scale(var(--slide-scale, 1)); }
  70%  { transform: translate(var(--slide-dx, 0px), var(--slide-dy, 0px)) scale(var(--slide-scale, 1)); }
  100% { transform: translate(0px, 0px) scale(var(--slide-scale, 1)); }
}

/* Wrong guess on symbol compare screens: partly move toward overlap so halves don’t line up */
.chocolate-bar--keyframe-slide-misalign {
  transform-origin: var(--slide-origin, center center);
  animation: chocolateBarSlideMisalign var(--slide-duration, 2.6s) ease-in-out both;
}

@keyframes chocolateBarSlideMisalign {
  0%   { transform: translate(0px, 0px) scale(var(--slide-scale, 1)); }
  35%  { transform: translate(calc(var(--slide-dx, 0px) * 0.36), calc(var(--slide-dy, 0px) * 0.36)) scale(var(--slide-scale, 1)); }
  65%  { transform: translate(calc(var(--slide-dx, 0px) * 0.36), calc(var(--slide-dy, 0px) * 0.36)) scale(var(--slide-scale, 1)); }
  100% { transform: translate(0px, 0px) scale(var(--slide-scale, 1)); }
}

/* Segment states */
.chocolate-segment {
  transition: opacity 0.3s ease, transform 0.2s ease;
  transform-origin: center;
  transform-box: fill-box;
}

.chocolate-segment--tappable { cursor: pointer; }

.chocolate-segment--dim { opacity: 0.35; }

.chocolate-segment--pulse { animation: segmentPulse 1.4s ease-in-out infinite; }

.chocolate-segment--pulse-one {
  animation: segmentPulseStrong 1.2s ease-in-out infinite;
  animation-delay: var(--pulse-segment-delay, 0s);
}

.chocolate-bar--stagger-pulse.chocolate-bar--outline-pulse .chocolate-bar-outline {
  animation: barOutlinePulseStagger 2.8s ease-in-out infinite;
  animation-delay: 0s;
}

.chocolate-bar--stagger-pulse .chocolate-segment--pulse-one {
  animation: segmentPulseStagger 2.8s ease-in-out infinite;
  animation-delay: 0s;
}

@keyframes barOutlinePulseStagger {
  0%, 50%, 100% {
    stroke: rgba(255, 255, 255, 0.6);
    stroke-width: 4;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.5));
  }
  25% {
    stroke: rgba(255, 220, 130, 1);
    stroke-width: 7;
    filter: drop-shadow(0 0 14px rgba(255, 220, 130, 0.95));
  }
}

@keyframes segmentPulseStagger {
  0%, 50%, 100% {
    filter: none;
    transform: scale(1);
  }
  75% {
    filter: drop-shadow(0 0 14px rgba(255, 220, 130, 0.95));
    transform: scale(1.02);
  }
}

.chocolate-segment-body {
  transform-origin: top left;
}

.chocolate-segment-focus-outline {
  stroke: #ffd35a;
  stroke-width: 7px;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.95)) drop-shadow(0 0 12px rgba(255, 159, 26, 0.9));
  pointer-events: none;
  animation: segmentFocusOutlinePulse 1.2s ease-in-out infinite;
}

.chocolate-segment-body--slide {
  animation: chocolateSegmentSlideToTarget var(--seg-slide-duration, 4.8s) ease-in-out both;
}

.chocolate-segment-body--slide-misalign {
  animation: chocolateSegmentSlideMisalign var(--seg-slide-duration, 2.6s) ease-in-out both;
}

@keyframes chocolateSegmentSlideToTarget {
  0%   { transform: translate(0px, 0px); filter: none; }
  25%  { transform: translate(var(--seg-slide-dx, 0px), var(--seg-slide-dy, 0px)); filter: drop-shadow(0 0 0 rgba(255,255,255,0)); }
  30%  { transform: translate(var(--seg-slide-dx, 0px), var(--seg-slide-dy, 0px)); filter: drop-shadow(0 0 6px rgba(255,255,255,1)) drop-shadow(0 0 12px rgba(255,230,80,0.9)); }
  70%  { transform: translate(var(--seg-slide-dx, 0px), var(--seg-slide-dy, 0px)); filter: drop-shadow(0 0 6px rgba(255,255,255,1)) drop-shadow(0 0 12px rgba(255,230,80,0.9)); }
  75%  { transform: translate(var(--seg-slide-dx, 0px), var(--seg-slide-dy, 0px)); filter: drop-shadow(0 0 0 rgba(255,255,255,0)); }
  100% { transform: translate(0px, 0px); filter: none; }
}

@keyframes chocolateSegmentSlideMisalign {
  0%   { transform: translate(0px, 0px); }
  35%  { transform: translate(calc(var(--seg-slide-dx, 0px) * 0.36), calc(var(--seg-slide-dy, 0px) * 0.36)); }
  65%  { transform: translate(calc(var(--seg-slide-dx, 0px) * 0.36), calc(var(--seg-slide-dy, 0px) * 0.36)); }
  100% { transform: translate(0px, 0px); }
}

.chocolate-segment-label {
  fill: #ffffff;
  stroke: rgba(0, 0, 0, 0.7);
  stroke-width: 2px;
  paint-order: stroke fill;
  font-family: Arial, sans-serif;
  font-size: 28px;
  font-weight: 800;
  pointer-events: none;
}

@keyframes segmentPulse {
  0%, 100% { filter: brightness(1); }
  50%      { filter: brightness(1.25); }
}

@keyframes segmentPulseStrong {
  0%, 100% { filter: brightness(1) drop-shadow(0 0 0 rgba(255, 255, 255, 0)); }
  50%      { filter: brightness(1.35) drop-shadow(0 0 12px rgba(255, 220, 130, 0.95)); }
}

@keyframes segmentFocusOutlinePulse {
  0%, 100% { stroke: #ffd35a; stroke-width: 7px; opacity: 0.9; }
  50%      { stroke: #ffffff; stroke-width: 9px; opacity: 1; }
}

.chocolate-segment--shaded .chocolate-segment-shade {
  animation: shadeShimmer 2.4s ease-in-out infinite;
}

@keyframes shadeShimmer {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 0.85; }
}

/* Container helpers used in app shell */
.chocolate-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  position: relative;
  width: 100%;
}

.bar-pair {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  position: relative;
  width: 100%;
}

.bar-pair--horizontal {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 60px;
  width: 100%;
}

.plain-symbol {
  font-size: 96px;
  font-weight: 900;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}