.sentence-lens-page {
  min-width: 72rem;
  overflow-x: auto;
  background:
    radial-gradient(circle at 8% 18%, rgb(0 193 222 / 8%), transparent 24rem),
    radial-gradient(circle at 92% 72%, rgb(0 174 141 / 8%), transparent 28rem),
    #f4f6f9;
}

.sentence-lens-page .site-header {
  position: relative;
  z-index: 20;
}

.sentence-lens {
  width: min(calc(100% - 2rem), 78rem);
  margin-inline: auto;
  padding-block: 2.5rem 4.5rem;
}

.sentence-lens [hidden] {
  display: none !important;
}

.lens-stage {
  --world-sky: #dff7f5;
  --world-horizon: #bfeae3;
  position: relative;
  min-height: min(48rem, calc(100svh - var(--header-height) - 2rem));
  overflow: hidden;
  border: 1px solid rgb(39 52 112 / 12%);
  border-radius: 1.75rem;
  background:
    linear-gradient(112deg, rgb(255 255 255 / 98%) 0 49%, rgb(255 255 255 / 24%) 70%),
    linear-gradient(160deg, var(--world-sky), var(--world-horizon));
  box-shadow: 0 30px 70px rgb(39 52 112 / 12%);
  isolation: isolate;
  transition: background 700ms ease;
}

.lens-stage::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgb(39 52 112 / 3%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(39 52 112 / 3%) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: linear-gradient(to right, transparent, black 45%);
  content: "";
}

.lens-stage[data-world-mode="context"] {
  --world-sky: #eaf9fc;
  --world-horizon: #c9eff5;
}

.lens-stage[data-world-mode="house"] {
  --world-sky: #e8f8f3;
  --world-horizon: #c5eadf;
}

.lens-stage[data-world-mode="sun"] {
  --world-sky: #fff5df;
  --world-horizon: #f4ddb6;
}

.lens-stage[data-world-mode="door"] {
  --world-sky: #fff2d9;
  --world-horizon: #f5d6ae;
}

.lens-stage[data-world-mode="fridge"] {
  --world-sky: #eaf8f5;
  --world-horizon: #bce9dd;
}

.lens-stage[data-world-mode="portal"] {
  --world-sky: #eee9ff;
  --world-horizon: #c9bff3;
}

.lens-stage[data-world-mode="complete"] {
  --world-sky: #e8fbf7;
  --world-horizon: #bdeadd;
}

.journey-progress {
  position: absolute;
  z-index: 8;
  top: 1.5rem;
  left: 3rem;
  width: min(25rem, calc(54% - 3rem));
}

.journey-progress__line {
  position: absolute;
  top: 0.86rem;
  right: 1.25rem;
  left: 1.25rem;
  height: 2px;
  background: rgb(39 52 112 / 14%);
}

.journey-progress ol {
  position: relative;
  display: flex;
  margin: 0;
  padding: 0;
  justify-content: space-between;
  list-style: none;
}

.journey-progress li {
  display: grid;
  min-width: 3rem;
  justify-items: center;
  color: rgb(39 52 112 / 44%);
  gap: 0.2rem;
  transition: color 300ms ease;
}

.journey-progress__step {
  display: grid;
  min-width: 3rem;
  margin: 0;
  padding: 0;
  border: 0;
  justify-items: center;
  gap: 0.2rem;
  background: transparent;
  color: inherit;
  cursor: default;
  font: inherit;
}

.journey-progress__step:disabled {
  opacity: 1;
}

.journey-progress li.is-available:not(.is-active) .journey-progress__step {
  cursor: pointer;
}

.journey-progress li.is-available:not(.is-active) .journey-progress__step:hover span {
  background: var(--surface-green);
  box-shadow: 0 0 0 5px rgb(0 174 141 / 9%);
  transform: translateY(-0.08rem);
}

.journey-progress__step:focus-visible {
  border-radius: 0.55rem;
  outline: 3px solid rgb(0 193 222 / 36%);
  outline-offset: 0.25rem;
}

.journey-progress li span {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  border: 2px solid rgb(39 52 112 / 18%);
  border-radius: 50%;
  place-items: center;
  background: white;
  font-size: 0.72rem;
  font-weight: 700;
  transition: all 300ms ease;
}

.journey-progress li em {
  opacity: 0;
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 600;
  transform: translateY(-0.2rem);
  transition: all 300ms ease;
}

.journey-progress li.is-active,
.journey-progress li.is-complete {
  color: var(--color-primary);
}

.journey-progress li.is-active span {
  border-color: var(--color-green);
  background: var(--color-green);
  box-shadow: 0 0 0 6px rgb(0 174 141 / 12%);
  color: white;
}

.journey-progress li.is-complete span {
  border-color: var(--color-green);
  color: var(--color-green);
}

.journey-progress li.is-active em,
.journey-progress li.is-complete em {
  opacity: 1;
  transform: translateY(0);
}

.living-world {
  position: absolute;
  z-index: 0;
  inset: 0 0 0 45%;
  overflow: hidden;
  pointer-events: none;
}

.living-world::after {
  position: absolute;
  right: -8%;
  bottom: -18%;
  width: 115%;
  height: 48%;
  border-radius: 50% 50% 0 0;
  background: linear-gradient(160deg, #8bd8c6, #4dbba7);
  content: "";
  transition: background 600ms ease;
}

.world-star {
  position: absolute;
  z-index: 1;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: white;
  box-shadow: 0 0 1rem rgb(255 255 255 / 90%);
  animation: star-float 5s ease-in-out infinite;
}

.world-star--one {
  top: 15%;
  right: 16%;
}

.world-star--two {
  top: 28%;
  left: 28%;
  animation-delay: -1.8s;
}

.world-star--three {
  top: 10%;
  left: 58%;
  width: 0.32rem;
  height: 0.32rem;
  animation-delay: -3.4s;
}

.world-sun {
  position: absolute;
  top: 14%;
  right: 12%;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  background: rgb(255 181 72 / 86%);
  box-shadow: 0 0 0 1rem rgb(255 181 72 / 12%), 0 0 5rem rgb(255 181 72 / 38%);
  transition: all 700ms ease;
}

.lens-stage[data-world-mode="portal"] .world-sun {
  background: rgb(98 93 156 / 76%);
  box-shadow: 0 0 0 1rem rgb(98 93 156 / 12%), 0 0 5rem rgb(98 93 156 / 42%);
}

.world-hill {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.world-hill--back {
  right: -18%;
  bottom: 22%;
  width: 108%;
  height: 28%;
  border-radius: 72% 38% 0 0;
  opacity: 0.56;
  background: linear-gradient(155deg, #d9eee7, #b8ddd1);
}

.world-hill--front {
  right: 15%;
  bottom: 8%;
  width: 86%;
  height: 25%;
  border-radius: 62% 48% 0 0;
  background: rgb(0 174 141 / 12%);
  transform: rotate(3deg);
}

.world-ground-shadow {
  position: absolute;
  border-radius: 50%;
  background: rgb(39 52 112 / 12%);
  filter: blur(0.32rem);
  opacity: 0.72;
}

.world-ground-shadow--structure {
  z-index: 2;
  right: 3%;
  bottom: 12.2%;
  width: 15rem;
  height: 1.15rem;
}

.world-ground-shadow--robot {
  z-index: 5;
  right: 44%;
  bottom: 10.2%;
  width: 5.2rem;
  height: 0.8rem;
}

.world-house {
  --house-scale: 1;
  position: absolute;
  z-index: 3;
  right: 3%;
  bottom: 12.5%;
  width: 15rem;
  height: 15rem;
  overflow: visible;
  filter: drop-shadow(0 0.65rem 0.45rem rgb(39 52 112 / 10%));
  transform: scale(var(--house-scale));
  transform-origin: bottom right;
  transition: opacity 500ms ease, transform 700ms cubic-bezier(.2, .8, .2, 1), filter 500ms ease;
}

.world-house__wall,
.world-house__roof {
  stroke: var(--color-primary);
  stroke-width: 3.5;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.world-house__wall {
  fill: #fff8e9;
}

.world-house__roof {
  fill: #e96852;
}

.world-house__eave {
  fill: none;
  stroke: rgb(39 52 112 / 34%);
  stroke-linecap: round;
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
}

.world-house__window-pane {
  fill: #c9eff5;
  stroke: var(--color-primary);
  stroke-width: 3.5;
  vector-effect: non-scaling-stroke;
}

.world-house__window-frame {
  fill: none;
  stroke: rgb(39 52 112 / 66%);
  stroke-linecap: round;
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
}

.world-house__door-interior {
  fill: #273470;
  opacity: 0.86;
}

.world-house__door {
  filter: drop-shadow(0 0.35rem 0.22rem rgb(39 52 112 / 0%));
  transform-box: fill-box;
  transform-origin: left center;
  transition: transform 800ms cubic-bezier(.2, .8, .2, 1), filter 500ms ease;
}

.world-house__door-panel {
  fill: #ffb548;
  stroke: var(--color-primary);
  stroke-linejoin: round;
  stroke-width: 3.5;
  vector-effect: non-scaling-stroke;
}

.world-house__door-knob {
  fill: var(--color-primary);
}

.world-house__step {
  fill: #efd2b2;
  stroke: var(--color-primary);
  stroke-linejoin: round;
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
}

.lens-stage[data-world-mode="door"] .world-house__door,
.lens-stage[data-world-mode="complete"] .world-house__door {
  filter: drop-shadow(0.75rem 0.35rem 0.35rem rgb(39 52 112 / 18%));
  transform: skewY(-7deg) scaleX(0.38);
}

.lens-stage[data-world-mode="house"] .world-house {
  filter: drop-shadow(0 0.75rem 0.5rem rgb(39 52 112 / 12%)) drop-shadow(0 0 1.1rem rgb(0 174 141 / 24%));
}

.lens-stage[data-world-mode="house"] .world-house__wall {
  fill: #edfff9;
}

.lens-stage[data-world-mode="sun"] .world-sun {
  background: #ffb548;
  box-shadow: 0 0 0 1.35rem rgb(255 181 72 / 16%), 0 0 6rem 1rem rgb(255 181 72 / 48%);
  animation: sun-focus 1.8s ease-in-out infinite;
}

/* Keep alternate story objects grounded in the same visual footprint. */
.lens-stage[data-world-mode="fridge"] .world-ground-shadow--structure {
  width: 10rem;
}

.lens-stage[data-world-mode="portal"] .world-ground-shadow--structure {
  width: 13rem;
  background: rgb(98 93 156 / 18%);
}

.world-fridge {
  position: absolute;
  z-index: 4;
  right: 10%;
  bottom: 15%;
  width: 9.2rem;
  height: 14rem;
  border: 3px solid var(--color-primary);
  border-radius: 1rem;
  opacity: 0;
  background: #dff7f5;
  box-shadow: 0 1rem 2rem rgb(39 52 112 / 16%);
  transform: translateY(2rem) scale(0.9);
  transition: all 600ms cubic-bezier(.2, .8, .2, 1);
}

.world-fridge__door::before {
  position: absolute;
  top: 38%;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--color-primary);
  content: "";
}

.world-fridge__handle {
  position: absolute;
  top: 16%;
  right: 0.8rem;
  width: 0.35rem;
  height: 2rem;
  border-radius: 99px;
  background: var(--color-primary);
}

.world-fridge__cake {
  position: absolute;
  right: 1.6rem;
  bottom: 2rem;
  color: var(--color-orange);
  font-size: 3rem;
  text-shadow: 0.35rem -0.25rem 0 #ffb548;
}

.world-fridge {
  perspective: 700px;
}

.world-fridge__door {
  position: absolute;
  z-index: 2;
  inset: -3px;
  border: 3px solid var(--color-primary);
  border-radius: 1rem;
  background: linear-gradient(105deg, #eafffa, #caeae6);
  transform-origin: left center;
  transition: transform 750ms cubic-bezier(.2, .8, .2, 1);
}

.world-fridge__inside {
  position: absolute;
  inset: 0.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 0.3rem;
  border-radius: 0.5rem;
  background: #9cc9c3;
  box-shadow: inset 0.5rem 0.3rem 1rem rgb(39 52 112 / 20%);
}

.world-fridge__inside i {
  width: 100%;
  height: 0.35rem;
  background: #f4fff9;
  box-shadow: 0 0.25rem 0 rgb(39 52 112 / 15%);
}

.lens-stage[data-world-mode="fridge"] .world-house {
  opacity: 0;
  transform: translateX(3rem);
}

.lens-stage[data-world-mode="fridge"] .world-fridge {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.world-portal {
  position: absolute;
  z-index: 3;
  right: 7%;
  bottom: 13%;
  width: 13rem;
  height: 16rem;
  border: 0.75rem solid rgb(98 93 156 / 42%);
  border-radius: 50%;
  opacity: 0;
  box-shadow:
    inset 0 0 2rem rgb(0 193 222 / 70%),
    0 0 2.5rem rgb(98 93 156 / 55%);
  transform: scale(0.65) rotate(-8deg);
  transition: all 650ms cubic-bezier(.2, .8, .2, 1);
}

.world-portal span {
  position: absolute;
  inset: 0.7rem;
  border: 3px solid rgb(0 193 222 / 65%);
  border-radius: inherit;
  animation: portal-spin 8s linear infinite;
}

.world-portal span:nth-child(2) {
  inset: 1.55rem;
  border-color: rgb(255 181 72 / 66%);
  animation-direction: reverse;
  animation-duration: 6s;
}

.world-portal span:nth-child(3) {
  inset: 2.45rem;
  border-color: rgb(255 255 255 / 70%);
  animation-duration: 4s;
}

.lens-stage[data-world-mode="portal"] .world-house {
  opacity: 0;
  transform: translateX(3rem);
}

.lens-stage[data-world-mode="portal"] .world-portal {
  opacity: 1;
  transform: scale(1) rotate(0);
}

/* Discoveries emerge from the entrance and settle at the robot's hand. */
.world-discovery {
  position: absolute;
  z-index: 7;
  right: 16%;
  bottom: 48%;
  display: grid;
  width: 6rem;
  justify-items: center;
  gap: 0.7rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(1rem) scale(0.8);
  transition: opacity 450ms ease, transform 650ms cubic-bezier(.2, .8, .2, 1);
}

.lens-stage[data-story-discovery] .world-discovery {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.world-discovery small {
  padding: 0.2rem 0.65rem;
  border: 1px solid rgb(0 174 141 / 22%);
  border-radius: 0.5rem;
  background: rgb(255 255 255 / 92%);
  color: #00735d;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.world-discovery__shape {
  position: relative;
  display: block;
  width: 4.2rem;
  height: 4.2rem;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  background: #ffcc70;
  box-shadow: 0 0.5rem 1rem rgb(39 52 112 / 12%);
  transform-origin: center bottom;
  transition: transform 1.4s ease, filter 1.4s ease;
}

.lens-stage[data-story-active] .world-fridge__cake {
  display: none;
}

.lens-stage[data-story-discovery="seed"] .world-discovery__shape {
  width: 2.1rem;
  height: 2.8rem;
  margin-top: 1.4rem;
  border-radius: 70% 25% 65% 35%;
  background: #cba674;
}

.lens-stage[data-story-discovery="seed"] .world-discovery__shape::before,
.lens-stage[data-story-discovery="seed"] .world-discovery__shape::after {
  position: absolute;
  top: -1.1rem;
  width: 1.5rem;
  height: 1rem;
  border: 2px solid #00735d;
  border-radius: 0 80% 0 80%;
  background: #80dbc0;
  content: "";
}

.lens-stage[data-story-discovery="seed"] .world-discovery__shape::before {
  left: -0.55rem;
  transform: rotate(15deg);
}

.lens-stage[data-story-discovery="seed"] .world-discovery__shape::after {
  right: -0.5rem;
  transform: rotate(-80deg);
}

.lens-stage[data-story-discovery="key"] .world-discovery__shape {
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 1.6rem;
  border: 0.5rem solid #ffb548;
  background: transparent;
  box-shadow: 0 0 0 2px var(--color-primary);
}

.lens-stage[data-story-discovery="key"] .world-discovery__shape::after {
  position: absolute;
  top: 1.75rem;
  left: 0.55rem;
  width: 0.6rem;
  height: 2rem;
  border-right: 0.5rem solid #ffb548;
  border-bottom: 0.4rem solid #ffb548;
  box-shadow: 2px 2px 0 var(--color-primary);
  content: "";
}

.lens-stage[data-story-discovery="map"] .world-discovery {
  width: 8rem;
}

.lens-stage[data-story-discovery="map"] .world-discovery__shape {
  width: 6.8rem;
  height: 4.6rem;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  filter: drop-shadow(0.2rem 0.35rem 0.25rem rgb(39 52 112 / 25%));
  transform: rotate(-5deg);
}

.world-map {
  display: none;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.lens-stage[data-story-discovery="map"] .world-map {
  display: block;
}

.world-map__fold {
  transition: transform 1.2s cubic-bezier(.2, .8, .2, 1);
}

.world-map__fold > path:first-child {
  stroke: #273470;
  stroke-width: 2;
  stroke-linejoin: round;
}

.world-map__fold--left {
  transform-origin: 61px 60px;
  transform: rotateY(24deg);
}

.world-map__fold--right {
  transform-origin: 117px 60px;
  transform: rotateY(-20deg);
}

.world-map__outline {
  fill: none;
  stroke: #273470;
  stroke-width: 1;
  opacity: 0.3;
}

.world-map__crease {
  fill: none;
  stroke: #b89d6b;
  stroke-width: 2;
}

.world-map__road {
  fill: none;
  stroke: #fffdf1;
  stroke-width: 7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.world-map__river {
  fill: none;
  stroke: #65bdcf;
  stroke-width: 6;
  stroke-linecap: round;
}

.world-map__terrain {
  fill: none;
  stroke: #7ea878;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.world-map__route {
  fill: none;
  stroke: #dc7147;
  stroke-width: 3;
  stroke-dasharray: 4 5;
  stroke-linecap: round;
}

.lens-stage[data-story-discovery="map"][data-story-action="unfold"] .world-discovery__shape {
  transform: rotate(0) scale(1.1);
}

.lens-stage[data-story-action="unfold"] .world-map__fold {
  transform: rotateY(0);
}

.lens-stage[data-story-discovery="map"][data-story-action="glow"] .world-discovery__shape {
  filter: drop-shadow(0.2rem 0.35rem 0.25rem rgb(39 52 112 / 25%));
}

.lens-stage[data-story-action="glow"] .world-map__route {
  stroke: #f08e31;
  filter: drop-shadow(0 0 3px #ffbc4b);
  animation: map-route-glow 2.4s linear infinite;
}

@keyframes map-route-glow {
  to { stroke-dashoffset: -36; }
}

.lens-stage[data-story-discovery="cake"] .world-discovery__shape {
  height: 3.1rem;
  margin-top: 1.1rem;
  border-radius: 0.65rem 0.65rem 0.25rem 0.25rem;
  background: linear-gradient(#fff7ec 0 27%, #e96852 28% 38%, #ffcc70 39% 63%, #fff7ec 64% 75%, #ffcc70 76%);
}

.lens-stage[data-story-discovery="cake"] .world-discovery__shape::before {
  position: absolute;
  top: -0.65rem;
  left: 42%;
  width: 0.65rem;
  height: 0.65rem;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  background: #e96852;
  content: "";
}

.lens-stage[data-story-discovery="star"] .world-discovery__shape {
  border: 0;
  border-radius: 0;
  background: #ffb548;
  clip-path: polygon(50% 0, 63% 33%, 100% 37%, 73% 61%, 82% 100%, 50% 79%, 18% 100%, 27% 61%, 0 37%, 37% 33%);
}

.lens-stage[data-story-discovery="light"] .world-discovery__shape {
  width: 3rem;
  height: 3rem;
  margin: 0.6rem;
  border-color: #ffcc70;
  background: #fff8dc;
  box-shadow: 0 0 0 0.5rem rgb(255 181 72 / 15%), 0 0 2.4rem #ffcc70;
}

.lens-stage[data-story-discovery="city"] .world-discovery__shape {
  width: 5rem;
  border: 0;
  border-radius: 0;
  background: repeating-linear-gradient(0deg, transparent 0 0.6rem, #ffe4a0 0.6rem 0.8rem),
    repeating-linear-gradient(90deg, #62619c 0 0.8rem, #858ac4 0.8rem 1.6rem);
  clip-path: polygon(0 35%, 20% 35%, 20% 55%, 30% 55%, 30% 10%, 50% 10%, 50% 40%, 65% 40%, 65% 0, 85% 0, 85% 45%, 100% 45%, 100% 100%, 0 100%);
}

.lens-stage[data-story-discovery="forest"] .world-discovery__shape {
  width: 5rem;
  border: 0;
  border-radius: 0;
  background: linear-gradient(90deg, #00735d, #63cfaa);
  clip-path: polygon(0 87%, 18% 27%, 28% 55%, 48% 0, 66% 52%, 80% 22%, 100% 87%, 85% 87%, 85% 100%, 75% 100%, 75% 87%, 54% 87%, 54% 100%, 44% 100%, 44% 87%, 23% 87%, 23% 100%, 13% 100%, 13% 87%);
}

.lens-stage[data-story-discovery="moon"] .world-discovery__shape {
  border: 0;
  background: transparent;
  box-shadow: inset 1.2rem -0.35rem 0 0 #ffe4a0;
  filter: drop-shadow(0 0 0.6rem rgb(255 181 72 / 60%));
  transform: rotate(-15deg);
}

.lens-stage[data-story-action="grow"] .world-discovery__shape {
  transform: scale(1.45) translateY(-0.2rem);
}

.lens-stage[data-story-action="unfold"] .world-discovery__shape {
  transform: scaleX(1.45) rotate(0);
}

.lens-stage[data-story-action="glow"] .world-discovery__shape,
.lens-stage[data-story-action="shine"] .world-discovery__shape {
  filter: brightness(1.12) drop-shadow(0 0 0.6rem #ffcc70) drop-shadow(0 0 1.5rem #ffcc70);
}

.lens-stage[data-story-action="float"] .world-discovery__shape {
  animation: story-float 3s ease-in-out infinite;
}

.lens-stage[data-story-action="spin"] .world-discovery__shape {
  transform-origin: center;
  animation: story-spin 4s linear infinite;
}

.lens-stage[data-story-action="dance"] .world-discovery__shape,
.lens-stage[data-story-action="sing"] .world-discovery__shape {
  animation: story-dance 1.8s ease-in-out infinite;
}

.lens-stage[data-story-action="sing"] .world-discovery::after {
  position: absolute;
  top: -0.5rem;
  right: -0.4rem;
  color: #00735d;
  font-size: 1.8rem;
  content: "♪";
  animation: story-float 2s ease-in-out infinite;
}

.lens-stage[data-story-action="change"] .world-discovery__shape {
  animation: story-change 5s ease-in-out infinite;
}

@keyframes story-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-1.1rem); }
}

@keyframes story-spin {
  to { transform: rotate(360deg); }
}

@keyframes story-dance {
  0%, 100% { transform: rotate(-7deg); }
  25%, 75% { transform: translateY(-0.5rem); }
  50% { transform: rotate(7deg); }
}

@keyframes story-change {
  0%, 100% { filter: hue-rotate(0); transform: scale(1); }
  50% { filter: hue-rotate(100deg); transform: scale(1.15); }
}

.world-robot {
  --robot-scale: 0.68;
  position: absolute;
  z-index: 6;
  right: 42%;
  bottom: 10.5%;
  width: 7.5rem;
  height: 11.5rem;
  transform-origin: bottom center;
  transform: scale(var(--robot-scale));
  transition: transform 650ms cubic-bezier(.2, .8, .2, 1), filter 260ms ease, opacity 260ms ease;
}

.world-robot__figure {
  position: absolute;
  inset: 0;
}

.world-robot__leg {
  display: none;
  position: absolute;
  top: 10.4rem;
  width: 1.3rem;
  height: 2.4rem;
  border: 3px solid var(--color-primary);
  border-radius: 0.4rem 0.4rem 0.5rem 0.5rem;
  background: #c9eff5;
  transform-origin: top center;
}

.world-robot__leg::after {
  position: absolute;
  bottom: -0.2rem;
  left: -0.15rem;
  width: 1.6rem;
  height: 0.65rem;
  border: 3px solid var(--color-primary);
  border-radius: 0.35rem;
  background: #f8fbff;
  content: "";
}

.world-robot__leg--left { left: 2rem; }
.world-robot__leg--right { right: 2rem; }

.world-robot::after {
  position: absolute;
  z-index: 8;
  top: -2.8rem;
  right: -1.1rem;
  width: 2.4rem;
  height: 2.4rem;
  border: 0.16rem solid rgb(255 181 72 / 70%);
  border-radius: 50%;
  background: radial-gradient(circle, rgb(255 247 232 / 98%) 0 32%, rgb(255 181 72 / 48%) 34% 50%, transparent 52%);
  box-shadow: 0 0 1.2rem rgb(255 181 72 / 35%);
  content: "";
  opacity: 0;
  transform: translateY(0.5rem) scale(0.72);
  transition: opacity 360ms ease, transform 420ms cubic-bezier(.2, .8, .2, 1);
}

.world-robot__antenna {
  position: absolute;
  top: 0;
  left: 50%;
  width: 0.25rem;
  height: 1.4rem;
  background: var(--color-primary);
}

.world-robot__antenna::before {
  position: absolute;
  top: -0.45rem;
  left: -0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-orange);
  box-shadow: 0 0 0 0.25rem rgb(233 104 82 / 12%);
  content: "";
}

.world-robot__antenna::after {
  position: absolute;
  top: -1.08rem;
  left: -0.87rem;
  width: 2rem;
  height: 2rem;
  border: 0.14rem solid rgb(255 184 77 / 70%);
  border-radius: 50%;
  content: "";
  opacity: 0;
  pointer-events: none;
}

.lens-stage[data-world-mode="observe"] .world-robot__antenna::before,
.lens-stage[data-world-mode="context"][data-context-word="antenna"] .world-robot__antenna::before {
  background: #ffb84d;
  box-shadow:
    0 0 0.35rem 0.14rem rgb(255 184 77 / 85%),
    0 0 1.2rem 0.45rem rgb(255 184 77 / 48%);
  animation: antenna-beacon 1.65s ease-in-out infinite;
}

.lens-stage[data-world-mode="observe"] .world-robot__antenna::after,
.lens-stage[data-world-mode="context"][data-context-word="antenna"] .world-robot__antenna::after {
  animation: antenna-signal 1.65s ease-out infinite;
}

.world-robot__head {
  position: absolute;
  top: 1.3rem;
  left: 50%;
  display: flex;
  width: 6.6rem;
  height: 4.6rem;
  border: 3px solid var(--color-primary);
  border-radius: 2.2rem 2.2rem 1.4rem 1.4rem;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: #f8fbff;
  transform: translateX(-50%);
}

.world-robot__head i {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 0 0.25rem rgb(0 193 222 / 14%);
  animation: robot-blink 4.5s infinite;
}

.world-robot__body {
  position: absolute;
  top: 6.1rem;
  left: 50%;
  width: 5.5rem;
  height: 5.2rem;
  border: 3px solid var(--color-primary);
  border-radius: 1.2rem 1.2rem 2rem 2rem;
  background: var(--color-primary);
  transform: translateX(-50%);
}

.world-robot__body::before {
  position: absolute;
  top: 1.1rem;
  left: 50%;
  width: 2.2rem;
  height: 1rem;
  border-radius: 99px;
  background: var(--color-green);
  box-shadow: inset 0 0 0 0.25rem rgb(255 255 255 / 25%);
  content: "";
  transform: translateX(-50%);
}

.world-robot__arm {
  position: absolute;
  top: 6.6rem;
  width: 1.1rem;
  height: 4rem;
  border: 3px solid var(--color-primary);
  border-radius: 99px;
  background: #f8fbff;
  transform-origin: top center;
  transition: transform 550ms ease;
}

.world-robot__arm--left {
  left: 0.15rem;
  transform: rotate(16deg);
}

.world-robot__arm--right {
  right: 0.15rem;
  transform: rotate(-16deg);
}

.lens-stage[data-world-mode="context"] .world-robot {
  transform: translateY(-0.4rem) rotate(-2deg) scale(var(--robot-scale));
}

.lens-stage[data-world-mode="context"].is-context-shifting .world-robot {
  transform: translateY(-0.7rem) rotate(1deg) scale(var(--robot-scale));
}

.lens-stage[data-world-mode="context"][data-context-word="engine"] .world-robot__body::before {
  background: var(--color-cyan);
  animation: engine-core-pulse 1.1s ease-in-out infinite;
}

.lens-stage[data-world-mode="context"][data-context-word="idea"] .world-robot::after {
  opacity: 1;
  transform: translateY(0) scale(1);
  animation: idea-float 1.8s ease-in-out infinite;
}

.lens-stage[data-world-mode="context"][data-context-word="arm"] .world-robot__arm--right {
  transform: rotate(-58deg);
}

.lens-stage[data-world-mode="door"] .world-robot__arm--right,
.lens-stage[data-world-mode="fridge"] .world-robot__arm--right,
.lens-stage[data-world-mode="portal"] .world-robot__arm--right,
.lens-stage[data-world-mode="complete"] .world-robot__arm--right {
  transform: rotate(-58deg);
}

/* Candidate hover gives a restrained preview; selection plays the full scene response. */
.lens-stage[data-world-preview="robot"] .world-robot {
  filter: drop-shadow(0 0 0.7rem rgb(0 193 222 / 34%)) brightness(1.06);
  transform: translateY(-0.65rem) scale(var(--robot-scale));
}

.lens-stage[data-world-preview="house"] .world-house {
  filter: drop-shadow(0 0.75rem 0.5rem rgb(39 52 112 / 12%)) drop-shadow(0 0 1rem rgb(0 174 141 / 30%));
}

.lens-stage[data-world-preview="door"] .world-house__door {
  filter: drop-shadow(0.45rem 0.25rem 0.45rem rgb(255 181 72 / 48%));
  transform: skewY(-3deg) scaleX(0.74);
}

.lens-stage[data-world-preview="sun"] .world-sun {
  filter: brightness(1.12);
  transform: scale(1.08);
}

.lens-stage[data-world-preview="scene"] .world-robot,
.lens-stage[data-world-preview="scene"] .world-sun {
  filter: brightness(1.06);
}

.lens-stage[data-world-mode][data-world-effect="robot-focus"] .world-robot {
  animation: world-robot-focus 760ms cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="robot-wave"] .world-robot__arm--right {
  animation: world-robot-wave 920ms ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="robot-glow"] .world-robot {
  animation: world-robot-glow 1.1s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="robot-wait"] .world-robot {
  animation: world-robot-wait 1.15s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="antenna-glow"] .world-robot__antenna::before {
  background: #ffb84d;
  animation: world-antenna-flash 1.1s ease-out both;
}

.lens-stage[data-world-mode][data-world-effect="antenna-glow"] .world-robot__antenna::after {
  animation: world-antenna-ring 1.1s ease-out both;
}

.lens-stage[data-world-mode][data-world-effect="engine-glow"] .world-robot__body::before {
  background: var(--color-cyan);
  animation: engine-core-pulse 620ms ease-in-out 2;
}

.lens-stage[data-world-mode][data-world-effect="idea-float"] .world-robot::after {
  opacity: 1;
  animation: world-idea-appear 1.25s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="arm-raise"] .world-robot__arm--right {
  animation: world-arm-raise 900ms cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="house-glow"] .world-house {
  animation: world-house-glow 1.15s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="house-stand"] .world-house {
  animation: world-house-stand 780ms cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="house-shake"] .world-house {
  animation: world-house-shake 720ms ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="house-change"] .world-house {
  animation: world-house-change 1.15s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="door-open"] .world-house__door {
  animation: world-door-open 900ms cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="door-close"] .world-house__door {
  animation: world-door-close 900ms cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="door-glow"] .world-house__door {
  animation: world-door-glow 1.1s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="sun-bright"] .world-sun {
  animation: world-sun-bright 1.1s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="sun-rise"] .world-sun {
  animation: world-sun-rise 1.1s cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="sun-set"] .world-sun {
  animation: world-sun-set 1.1s cubic-bezier(.2, .8, .2, 1) both;
}

.lens-stage[data-world-mode][data-world-effect="punctuation-pop"] .living-world {
  animation: world-scene-pop 700ms ease-out both;
}

.lens-stage[data-world-mode][data-world-effect="question"] .world-robot {
  animation: world-robot-question 1.05s ease-in-out both;
}

.lens-stage[data-world-mode][data-world-effect="ellipsis"] .world-sun {
  animation: world-scene-ellipsis 1.4s ease-in-out both;
}

/* Phase three is acted out: approach, make contact, then open and discover. */
.lens-stage[data-story-active] .world-robot {
  height: 13rem;
  translate: var(--story-travel-x, 0px) var(--story-travel-y, 0px);
  transition: translate 1050ms linear, transform 650ms ease, filter 260ms ease;
}

.lens-stage[data-story-active] .world-robot__leg {
  display: block;
}

.lens-stage[data-story-active] .world-ground-shadow--robot {
  translate: var(--story-travel-x, 0px) var(--story-travel-y, 0px);
  transition: translate 1050ms linear;
}

.lens-stage[data-story-pose="idle"] .world-robot,
.lens-stage[data-story-pose="prepare"] .world-robot,
.lens-stage[data-story-pose="idle"] .world-ground-shadow--robot,
.lens-stage[data-story-pose="prepare"] .world-ground-shadow--robot {
  translate: 0 0;
  transition: none;
}

.lens-stage[data-story-pose="walking"] .world-robot__figure {
  animation: story-walk-bob 360ms ease-in-out infinite;
}

.lens-stage[data-story-pose="open"] .world-robot,
.lens-stage[data-story-pose="open"] .world-ground-shadow--robot {
  translate: calc(var(--story-travel-x, 0px) - var(--story-step-back, 0px)) var(--story-travel-y, 0px);
  transition-duration: 400ms;
}

.lens-stage[data-story-pose="walking"] .world-robot__leg--left,
.lens-stage[data-story-pose="walking"] .world-robot__arm--right {
  animation: story-walk-limb 360ms ease-in-out infinite alternate;
}

.lens-stage[data-story-pose="walking"] .world-robot__leg--right,
.lens-stage[data-story-pose="walking"] .world-robot__arm--left {
  animation: story-walk-limb 360ms ease-in-out infinite alternate-reverse;
}

.lens-stage[data-story-active] .world-robot__arm--right {
  transform: rotate(-16deg);
}

.lens-stage[data-story-pose="reaching"] .world-robot__arm--right,
.lens-stage[data-story-pose="opening"] .world-robot__arm--right,
.lens-stage[data-story-pose="open"] .world-robot__arm--right {
  transform: rotate(var(--story-reach-angle, -72deg));
}

.lens-stage[data-story-active] .world-fridge {
  transition: opacity 450ms ease;
}

.lens-stage[data-story-active] .world-fridge__handle {
  top: 60%;
}

.lens-stage[data-story-active] .world-house__door,
.lens-stage[data-story-active] .world-fridge__door {
  transform: none;
  filter: none;
  animation: none;
}

.lens-stage[data-story-pose="opening"][data-world-mode="door"] .world-house__door,
.lens-stage[data-story-pose="open"][data-world-mode="door"] .world-house__door {
  transform: skewY(-7deg) scaleX(0.18);
  filter: drop-shadow(0.7rem 0.35rem 0.35rem rgb(39 52 112 / 18%));
}

.lens-stage[data-story-pose="opening"][data-world-mode="fridge"] .world-fridge__door,
.lens-stage[data-story-pose="open"][data-world-mode="fridge"] .world-fridge__door {
  transform: rotateY(-76deg);
}

.lens-stage[data-story-active][data-world-mode="portal"] .world-portal {
  background: #d9e7e5;
  box-shadow: inset 0 0 1.5rem rgb(39 52 112 / 12%);
  transition: background 650ms ease, box-shadow 650ms ease, opacity 450ms ease;
}

.lens-stage[data-story-active] .world-portal span {
  opacity: 0.1;
  animation-play-state: paused;
  transition: opacity 650ms ease;
}

.lens-stage[data-story-pose="opening"][data-world-mode="portal"] .world-portal,
.lens-stage[data-story-pose="open"][data-world-mode="portal"] .world-portal {
  background: radial-gradient(ellipse, #f7fff9, #a6e3de 55%, #8580b4);
  box-shadow: inset 0 0 2rem #90e0e9, 0 0 2rem rgb(98 93 156 / 38%);
}

.lens-stage[data-story-pose="opening"] .world-portal span,
.lens-stage[data-story-pose="open"] .world-portal span {
  opacity: 1;
  animation-play-state: running;
}

.lens-stage[data-story-active] .world-discovery {
  top: var(--story-object-top, 45%);
  left: var(--story-object-left, 50%);
  right: auto;
  bottom: auto;
  transition: opacity 500ms ease, transform 650ms cubic-bezier(.2, .8, .2, 1);
}

.lens-stage[data-story-reveal="emerging"] .world-discovery {
  opacity: 0;
  transform: translate(var(--story-emerge-x, 0px), var(--story-emerge-y, 20px)) scale(0.2);
  transition: none;
}

.lens-stage[data-story-reveal="held"] .world-discovery {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

.lens-stage[data-story-pose="prepare"] .story-action-verb,
.lens-stage[data-story-pose="walking"] .story-action-verb,
.lens-stage[data-story-pose="reaching"] .story-action-verb,
.lens-stage[data-story-pose="opening"] .story-action-verb {
  color: #00735d;
  background: rgb(0 174 141 / 10%);
  border-radius: 0.2rem;
}

@keyframes story-walk-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-0.22rem); }
}

@keyframes story-walk-limb {
  from { transform: rotate(-18deg); }
  to { transform: rotate(18deg); }
}

.stage-interface {
  position: relative;
  z-index: 5;
  display: grid;
  width: min(43rem, 57%);
  min-height: inherit;
  padding: 6.7rem 0 2.25rem 3rem;
  align-items: center;
}

.experience-step {
  width: min(100%, 39rem);
  padding: 2rem;
  border: 1px solid rgb(39 52 112 / 10%);
  border-radius: 1.25rem;
  background: rgb(255 255 255 / 92%);
  box-shadow: 0 1.25rem 3rem rgb(39 52 112 / 10%);
  backdrop-filter: blur(1.2rem);
  animation: step-enter 480ms cubic-bezier(.2, .8, .2, 1) both;
}

.experience-step[hidden] {
  display: none;
}

.stage-kicker {
  margin: 0 0 0.45rem;
  color: var(--color-green);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: none;
}

.stage-kicker--instruction {
  letter-spacing: 0.025em;
  text-transform: none;
}

.experience-step h1,
.experience-step h2 {
  margin: 0;
  color: var(--color-primary);
  font-size: 3.1rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.experience-step h2 {
  font-size: 2.55rem;
}

#experience-title {
  margin-bottom: 1.35rem;
  font-size: 2.3rem;
  white-space: nowrap;
}

.stage-lede {
  margin: 0.75rem 0 1.35rem;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.45;
}

.reply-window {
  position: relative;
  display: grid;
  min-height: 7.2rem;
  padding: 1rem 1.15rem 1.15rem;
  border: 1px solid rgb(39 52 112 / 12%);
  border-radius: 1rem;
  grid-template-columns: 2.55rem minmax(0, 1fr);
  grid-template-rows: minmax(4.25rem, auto) auto;
  column-gap: 0.8rem;
  align-items: center;
  background: white;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 80%);
  transition: border-color 300ms ease, box-shadow 300ms ease;
}

.reply-window.is-segmented {
  border-color: rgb(0 174 141 / 28%);
  box-shadow: inset 0 0 0 1px rgb(0 174 141 / 7%);
}

.reply-window__avatar {
  display: grid;
  grid-column: 1;
  grid-row: 1;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid rgb(0 174 141 / 28%);
  border-radius: 50%;
  align-self: center;
  place-items: center;
  background: var(--surface-green);
  box-shadow: 0 0 0 0.3rem rgb(0 174 141 / 7%);
  color: #00735d;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
}

.reply-window__message {
  display: flex;
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  min-height: 4.25rem;
  align-items: center;
}

.reply-window__sentence {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.4;
}

.reply-token {
  border-radius: 0.3rem;
  transition: background 360ms ease, box-shadow 360ms ease, color 360ms ease;
}

.reply-token.is-arriving {
  animation: reply-token-arrive 420ms cubic-bezier(.2, .8, .2, 1) both;
}

.reply-window.is-segmented .reply-token {
  animation: reply-token-map 640ms cubic-bezier(.2, .8, .2, 1) both;
  animation-delay: calc(var(--token-index, 0) * 70ms);
}

.reply-window__cursor {
  margin-left: 0.08rem;
  color: var(--color-green);
  font-family: var(--font-mono);
  font-size: 1.6rem;
  animation: cursor-blink 0.9s steps(1) infinite;
}

.playback-console {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 1rem;
  align-items: center;
}

.round-action,
.flow-action,
.quiet-action,
.story-option {
  font: inherit;
}

.round-action,
.flow-action {
  min-height: 2.8rem;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}

.round-action {
  display: inline-flex;
  padding: 0.7rem 1rem;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: var(--surface-blue);
  color: var(--color-primary);
}

.round-action:hover {
  background: var(--surface-cyan);
}

.speed-control {
  display: grid;
  grid-template-columns: auto minmax(5rem, 1fr) 2.8rem;
  min-height: 3rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgb(39 52 112 / 9%);
  border-radius: 999px;
  align-items: center;
  gap: 0.7rem;
  background: #f7f8fa;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.speed-control input {
  --speed-progress: 100%;
  height: 0.42rem;
  width: 100%;
  appearance: none;
  border: 0;
  border-radius: 999px;
  outline: 0;
  background: linear-gradient(
    to right,
    var(--color-green) 0,
    var(--color-green) var(--speed-progress),
    rgb(39 52 112 / 16%) var(--speed-progress),
    rgb(39 52 112 / 16%) 100%
  );
  cursor: grab;
}

.speed-control input::-webkit-slider-thumb {
  width: 1.12rem;
  height: 1.12rem;
  appearance: none;
  border: 3px solid white;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 1px rgb(0 174 141 / 34%), 0 0.2rem 0.45rem rgb(39 52 112 / 16%);
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.speed-control input::-moz-range-thumb {
  width: 0.82rem;
  height: 0.82rem;
  border: 3px solid white;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 1px rgb(0 174 141 / 34%), 0 0.2rem 0.45rem rgb(39 52 112 / 16%);
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.speed-control input:hover::-webkit-slider-thumb,
.speed-control input:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 0.35rem rgb(0 174 141 / 13%), 0 0.2rem 0.45rem rgb(39 52 112 / 16%);
  transform: scale(1.04);
}

.speed-control input:hover::-moz-range-thumb,
.speed-control input:focus-visible::-moz-range-thumb {
  box-shadow: 0 0 0 0.35rem rgb(0 174 141 / 13%), 0 0.2rem 0.45rem rgb(39 52 112 / 16%);
  transform: scale(1.04);
}

.speed-control input:active {
  cursor: grabbing;
}

.speed-control strong {
  color: var(--color-primary);
  font-family: var(--font-mono);
  text-align: right;
}

.token-film {
  grid-column: 1 / -1;
  grid-row: 2;
  margin-top: 0.75rem;
  padding: 0.85rem 0.9rem;
  border: 1px solid rgb(0 174 141 / 20%);
  border-radius: 0.85rem;
  background: linear-gradient(135deg, #fbfdfc 0%, var(--surface-green) 100%);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 85%);
}

.token-film.is-revealed {
  animation: token-film-unfold 520ms cubic-bezier(.2, .8, .2, 1) both;
}

.token-film p {
  margin: 0 0 0.6rem;
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 600;
}

.token-film__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.token-frame,
.story-token {
  display: inline-flex;
  min-height: 2.3rem;
  padding: 0.4rem 0.72rem;
  border: 1px solid rgb(0 174 141 / 32%);
  border-radius: 0.65rem;
  align-items: center;
  background: rgb(255 255 255 / 72%);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  transition: all 240ms ease;
}

.token-film.is-revealed .token-frame {
  animation: token-drop 460ms cubic-bezier(.2, .8, .2, 1) both;
  animation-delay: calc(var(--token-index, 0) * 70ms);
}

.token-film.is-revealed.is-replaying .token-frame {
  opacity: 1;
  animation: none;
  transform: translateY(0) scale(1);
  transition: border-color 240ms ease, background 240ms ease, box-shadow 240ms ease, color 240ms ease;
}

.token-frame.is-current {
  border-color: var(--color-green);
  background: var(--color-green);
  box-shadow: 0 0 0 0.35rem rgb(0 174 141 / 12%);
  color: white;
  transform: translateY(-0.15rem);
}

.discovery-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgb(0 174 141 / 25%);
  border-radius: 1rem;
  background: var(--surface-green);
  animation: reveal-note 500ms cubic-bezier(.2, .8, .2, 1) both;
}

.discovery-note__mark {
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 0.8rem;
  place-items: center;
  background: var(--color-green);
  color: white;
  font-family: var(--font-mono);
  font-weight: 700;
}

.discovery-note h2 {
  margin: 0;
  font-size: 1.12rem;
  letter-spacing: 0;
  line-height: 1.25;
}

.concept-term {
  display: inline-flex;
  margin-inline-start: 0.12em;
  padding: 0.1em 0.42em 0.12em;
  border-radius: 0.45rem;
  align-items: center;
  background: var(--color-primary);
  box-shadow: 0 0.2rem 0.55rem rgb(39 52 112 / 18%);
  color: white;
  font-family: var(--font-mono);
  font-size: 0.88em;
  letter-spacing: 0;
  line-height: 1.1;
  vertical-align: 0.04em;
}

.discovery-note p {
  margin: 0.3rem 0 0;
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.flow-action {
  display: flex;
  width: 100%;
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  color: white;
}

.flow-action:hover {
  background: var(--color-green);
}

.sentence-flow {
  margin-top: 0.9rem;
}

.sentence-flow__stage {
  min-height: 7.2rem;
  padding: 1.3rem 1.15rem 0.9rem;
  border-block: 1px solid rgb(39 52 112 / 11%);
  background: linear-gradient(90deg, transparent, rgb(0 174 141 / 5%) 50%, transparent);
}

.sentence-flow__sentence {
  display: flex;
  min-height: 3.2rem;
  margin: 0;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 1.42rem;
  font-weight: 700;
  line-height: 1.65;
}

.sentence-flow__fixed-token,
.sentence-flow__token {
  margin-inline-start: 0.42rem;
}

.sentence-flow__fixed-token {
  margin-inline-start: 0;
}

.sentence-flow__token {
  position: relative;
  padding: 0 0.08rem 0.12rem;
  border: 0;
  border-bottom: 2px solid rgb(0 174 141 / 40%);
  border-radius: 0.22rem;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  line-height: inherit;
  transition: border-color 220ms ease, background 220ms ease, color 220ms ease, opacity 280ms ease, transform 320ms cubic-bezier(.2, .8, .2, 1);
}

.sentence-flow__token.is-tight {
  margin-inline-start: 0;
}

.sentence-flow__token.is-inviting {
  border-bottom-color: rgb(0 174 141 / 46%);
  background: rgb(0 174 141 / 8%);
  box-shadow: 0 0 0.7rem rgb(0 174 141 / 10%);
  color: #00735d;
  animation: flow-token-invite 2.8s ease-in-out infinite;
  animation-delay: calc(var(--flow-token-index, 1) * 90ms);
}

.sentence-flow__token:hover,
.sentence-flow__token:focus-visible {
  border-bottom-color: var(--color-cyan);
  color: #00735d;
}

.sentence-flow__token:focus-visible {
  outline: 3px solid rgb(0 193 222 / 28%);
  outline-offset: 2px;
}

.sentence-flow__token.is-target {
  border-bottom-color: var(--color-green);
  background: rgb(0 174 141 / 14%);
  color: #00735d;
}

.sentence-flow__token.is-future {
  border-bottom-color: rgb(0 174 141 / 65%);
  opacity: 0.5;
  transform: translateY(0.12rem);
}

.sentence-flow__token.is-future:hover,
.sentence-flow__token.is-future:focus-visible {
  opacity: 1;
}

.sentence-flow__token.is-arriving {
  animation: flow-token-arrive 480ms cubic-bezier(.2, .8, .2, 1) both;
}

.sentence-flow__cursor {
  margin-inline: 0.14rem 0.02rem;
  color: var(--color-green);
  animation: cursor-blink 0.9s steps(1) infinite;
}

.sentence-flow__hint,
.sentence-flow__caption {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.76rem;
  line-height: 1.35;
  text-align: center;
}

.sentence-flow__hint {
  margin-top: 0.45rem;
}

.candidate-rail {
  position: relative;
  margin-block: 0.85rem 0.65rem;
  padding: 1rem 0.4rem 0.25rem;
}

.candidate-rail__line {
  position: absolute;
  top: 0;
  right: 8%;
  left: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgb(0 174 141 / 48%) 24%, rgb(0 193 222 / 20%) 76%, transparent);
}

.candidate-rail > p {
  margin: 0 0 0.55rem;
  color: #00735d;
  font-size: 0.72rem;
  font-weight: 700;
}

.candidate-rail__options {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
}

.candidate-rail__choice {
  min-width: 0;
  min-height: 3.1rem;
  padding: 0.55rem 0.35rem;
  border: 0;
  border-bottom: 2px solid rgb(39 52 112 / 15%);
  border-radius: 0.38rem 0.38rem 0.12rem 0.12rem;
  background: rgb(255 255 255 / 78%);
  color: var(--color-primary);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  opacity: 1;
  transition: background 220ms ease, border-color 220ms ease, color 220ms ease, opacity 220ms ease, transform 280ms cubic-bezier(.2, .8, .2, 1);
}

.candidate-rail__choice:nth-child(2) {
  opacity: 0.84;
}

.candidate-rail__choice:nth-child(3) {
  opacity: 0.68;
}

.candidate-rail__choice:nth-child(4) {
  opacity: 0.54;
}

.candidate-rail__choice.is-leading {
  border-bottom-color: var(--color-green);
  color: #00735d;
  font-size: 0.92rem;
}

.candidate-rail__choice.is-punctuation {
  font-size: 1.08rem;
}

.candidate-rail__choice.is-current::after {
  display: block;
  width: 1.3rem;
  height: 2px;
  margin: 0.3rem auto 0;
  background: var(--color-green);
  content: "";
}

.candidate-rail__choice:hover,
.candidate-rail__choice:focus-visible {
  border-bottom-color: var(--color-cyan);
  background: rgb(0 193 222 / 8%);
  color: #00735d;
  opacity: 1;
  transform: translateY(-0.18rem);
}

.candidate-rail__choice:focus-visible {
  outline: 3px solid rgb(0 193 222 / 28%);
  outline-offset: 2px;
}

.candidate-rail__choice.is-entering {
  animation: candidate-rail-enter 420ms cubic-bezier(.2, .8, .2, 1) both;
  animation-delay: calc(var(--candidate-index, 0) * 55ms);
}

.candidate-rail__choice.is-selected {
  border-bottom-color: var(--color-green);
  background: var(--color-green);
  color: white;
  opacity: 1;
  transform: translateY(-0.55rem);
}

.sentence-flow.is-committing .sentence-flow__token.is-future {
  opacity: 0;
  transform: translateX(0.6rem);
}

.sentence-flow.is-committing .candidate-rail__choice:not(.is-selected) {
  opacity: 0;
  transform: translateY(0.35rem);
}

.sentence-flow__caption {
  min-height: 1.1rem;
  margin-top: 0.55rem;
}


.story-composer {
  padding: 1rem;
  border: 1px solid rgb(39 52 112 / 10%);
  border-radius: 1rem;
  background: #f7f8fa;
}

.story-sentence {
  min-height: 7rem;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.45;
}

.story-sentence .story-appended {
  display: inline;
  border-radius: 0.3rem;
}

.story-sentence .story-appended.is-chosen {
  background: var(--surface-green);
  color: #00735d;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.story-sentence .story-appended.is-auto {
  color: var(--color-ink);
}

.story-status {
  min-height: 1.4rem;
  margin: 0.75rem 0;
  color: #00735d;
  font-size: 0.8rem;
  font-weight: 600;
}

.story-sentence .story-cursor {
  color: var(--color-green);
  animation: cursor-blink 0.9s steps(1) infinite;
}

.story-options {
  display: grid;
  min-height: 3.2rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.story-option {
  display: grid;
  place-items: center;
  min-height: 3.2rem;
  padding: 0.65rem 0.55rem;
  border: 1px solid rgb(39 52 112 / 15%);
  border-radius: 0.8rem;
  background: white;
  color: var(--color-primary);
  cursor: pointer;
  font-family: var(--font-mono);
  font-weight: 700;
}

.story-option:hover,
.story-option:focus-visible {
  border-color: var(--color-green);
  background: var(--surface-green);
}

.story-trail {
  display: flex;
  min-height: 2.8rem;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.8rem;
}

.story-token {
  display: grid;
  gap: 0.12rem;
  align-content: center;
}

.story-token small {
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 500;
}

.story-ending-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.story-ending-actions .round-action {
  flex: 1 1 10rem;
  justify-content: center;
  border: 1px solid rgb(0 174 141 / 20%);
  background: white;
  font-size: 0.85rem;
}

.story-ending-actions .round-action:hover {
  background: #dcf3eb;
}

.story-controls {
  display: flex;
  justify-content: space-between;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.quiet-action {
  padding: 0.35rem 0;
  border: 0;
  background: transparent;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgb(39 52 112 / 25%);
  text-underline-offset: 0.25rem;
}

.quiet-action:disabled {
  opacity: 0.35;
  cursor: default;
}

.closing-insight {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgb(0 174 141 / 24%);
  border-radius: 1rem;
  background: var(--surface-green);
  animation: reveal-note 500ms cubic-bezier(.2, .8, .2, 1) both;
}

.closing-insight > p {
  margin: 0;
  color: #00735d;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.45;
}

.closing-insight__loop {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0.75rem 0;
  color: var(--color-primary);
  font-size: 0.75rem;
}

.closing-insight__loop span {
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  background: white;
  font-weight: 600;
}

.closing-insight__loop b {
  color: var(--color-green);
}

.lens-sources {
  width: min(100%, 52rem);
  margin: 1.5rem auto 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.84rem;
}

.lens-sources summary {
  padding: 1rem 0;
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
}

.lens-sources > div {
  padding-bottom: 0.5rem;
}

.lens-sources p,
.lens-sources ul {
  margin-block: 0.45rem;
}

@keyframes cursor-blink {
  0%,
  46% {
    opacity: 1;
  }
  47%,
  100% {
    opacity: 0;
  }
}

@keyframes star-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-0.8rem);
  }
}

@keyframes antenna-beacon {
  0%,
  100% {
    filter: brightness(0.96);
    transform: scale(0.92);
  }
  50% {
    filter: brightness(1.18);
    transform: scale(1.12);
  }
}

@keyframes antenna-signal {
  0% {
    opacity: 0.72;
    transform: scale(0.35);
  }
  75%,
  100% {
    opacity: 0;
    transform: scale(1.35);
  }
}

@keyframes engine-core-pulse {
  0%,
  100% {
    box-shadow:
      inset 0 0 0 0.25rem rgb(255 255 255 / 25%),
      0 0 0.35rem rgb(0 193 222 / 25%);
    transform: translateX(-50%) scale(1);
  }
  50% {
    box-shadow:
      inset 0 0 0 0.25rem rgb(255 255 255 / 34%),
      0 0 1rem 0.28rem rgb(0 193 222 / 38%);
    transform: translateX(-50%) scale(1.08);
  }
}

@keyframes idea-float {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-0.3rem) scale(1.06);
  }
}

@keyframes sun-focus {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.07);
  }
}

@keyframes robot-blink {
  0%,
  45%,
  50%,
  100% {
    transform: scaleY(1);
  }
  47% {
    transform: scaleY(0.08);
  }
}

@keyframes portal-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes step-enter {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes reveal-note {
  from {
    opacity: 0;
    transform: scale(0.97) translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes token-land {
  from {
    opacity: 0;
    transform: translateY(-0.6rem) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes reply-token-arrive {
  from {
    opacity: 0;
    color: var(--color-green);
    transform: translateY(0.25rem);
  }
  to {
    opacity: 1;
    color: var(--color-ink);
    transform: translateY(0);
  }
}

@keyframes reply-token-map {
  0%,
  100% {
    background: transparent;
    color: var(--color-ink);
  }
  45% {
    background: rgb(0 193 222 / 14%);
    color: #00735d;
  }
}

@keyframes token-film-unfold {
  from {
    opacity: 0;
    transform: translateY(-0.65rem) scaleY(0.92);
    transform-origin: top;
  }
  to {
    opacity: 1;
    transform: translateY(0) scaleY(1);
    transform-origin: top;
  }
}

@keyframes token-drop {
  from {
    opacity: 0;
    transform: translateY(-0.8rem) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes candidate-rail-enter {
  from {
    opacity: 0;
    transform: translateX(0.65rem);
  }
}

@keyframes flow-token-arrive {
  from {
    opacity: 0;
    color: var(--color-green);
    transform: translateY(0.45rem);
  }
  to {
    opacity: 1;
    color: var(--color-ink);
    transform: translateY(0);
  }
}

@keyframes flow-token-invite {
  0%,
  100% {
    background: rgb(0 174 141 / 7%);
    box-shadow: 0 0 0.45rem rgb(0 174 141 / 8%);
  }
  50% {
    background: rgb(0 193 222 / 14%);
    box-shadow: 0 0 1rem rgb(0 193 222 / 20%);
  }
}

@keyframes world-robot-focus {
  0%,
  100% {
    filter: none;
    transform: translateY(-0.4rem) rotate(-2deg) scale(var(--robot-scale));
  }
  48% {
    filter: drop-shadow(0 0 1.1rem rgb(0 193 222 / 38%)) brightness(1.08);
    transform: translateY(-0.9rem) rotate(1deg) scale(var(--robot-scale));
  }
}

@keyframes world-robot-wave {
  0%,
  100% {
    transform: rotate(-16deg);
  }
  28% {
    transform: rotate(-68deg);
  }
  52% {
    transform: rotate(-38deg);
  }
  76% {
    transform: rotate(-64deg);
  }
}

@keyframes world-robot-glow {
  0%,
  100% {
    filter: none;
    transform: translateY(-0.4rem) rotate(-2deg) scale(var(--robot-scale));
  }
  50% {
    filter: drop-shadow(0 0 1.55rem rgb(0 193 222 / 64%)) brightness(1.18);
    transform: translateY(-0.55rem) rotate(-1deg) scale(var(--robot-scale));
  }
}

@keyframes world-robot-wait {
  0%,
  100% {
    transform: translateY(-0.4rem) rotate(-2deg) scale(var(--robot-scale));
  }
  35% {
    transform: translateY(-0.15rem) rotate(-4deg) scale(var(--robot-scale));
  }
  68% {
    transform: translateY(-0.4rem) rotate(1deg) scale(var(--robot-scale));
  }
}

@keyframes world-antenna-flash {
  0%,
  100% {
    box-shadow: 0 0 0 0.25rem rgb(233 104 82 / 12%);
    filter: brightness(1);
    transform: scale(1);
  }
  45% {
    box-shadow: 0 0 0.5rem 0.2rem rgb(255 184 77 / 92%), 0 0 1.6rem 0.55rem rgb(255 184 77 / 56%);
    filter: brightness(1.24);
    transform: scale(1.2);
  }
}

@keyframes world-antenna-ring {
  0% {
    opacity: 0.82;
    transform: scale(0.25);
  }
  100% {
    opacity: 0;
    transform: scale(1.75);
  }
}

@keyframes world-idea-appear {
  0% {
    opacity: 0;
    transform: translateY(0.8rem) scale(0.65);
  }
  55%,
  100% {
    opacity: 1;
    transform: translateY(-0.2rem) scale(1);
  }
  78% {
    transform: translateY(-0.5rem) scale(1.07);
  }
}

@keyframes world-arm-raise {
  0% {
    transform: rotate(-16deg);
  }
  58%,
  100% {
    transform: rotate(-58deg);
  }
  76% {
    transform: rotate(-68deg);
  }
}

@keyframes world-house-glow {
  0%,
  100% {
    filter: drop-shadow(0 0.75rem 0.5rem rgb(39 52 112 / 12%)) drop-shadow(0 0 1.1rem rgb(0 174 141 / 24%));
    transform: scale(var(--house-scale));
  }
  50% {
    filter: drop-shadow(0 0.75rem 0.5rem rgb(39 52 112 / 12%)) drop-shadow(0 0 2rem rgb(0 193 222 / 48%));
    transform: translateY(-0.2rem) scale(var(--house-scale));
  }
}

@keyframes world-house-stand {
  0% {
    transform: translateY(0.75rem) scale(var(--house-scale));
  }
  62% {
    transform: translateY(-0.16rem) scale(var(--house-scale));
  }
  100% {
    transform: translateY(0) scale(var(--house-scale));
  }
}

@keyframes world-house-shake {
  0%,
  100% {
    transform: translateX(0) scale(var(--house-scale));
  }
  20%,
  60% {
    transform: translateX(-0.35rem) rotate(-1deg) scale(var(--house-scale));
  }
  40%,
  80% {
    transform: translateX(0.35rem) rotate(1deg) scale(var(--house-scale));
  }
}

@keyframes world-house-change {
  0%,
  100% {
    filter: drop-shadow(0 0.75rem 0.5rem rgb(39 52 112 / 12%)) hue-rotate(0deg);
    transform: scale(var(--house-scale));
  }
  45% {
    filter: drop-shadow(0 0 1.5rem rgb(0 193 222 / 40%)) hue-rotate(-35deg);
    transform: translateY(-0.25rem) scale(var(--house-scale));
  }
}

@keyframes world-door-open {
  from {
    filter: drop-shadow(0 0.35rem 0.22rem rgb(39 52 112 / 0%));
    transform: skewY(0) scaleX(1);
  }
  to {
    filter: drop-shadow(0.75rem 0.35rem 0.35rem rgb(39 52 112 / 18%));
    transform: skewY(-7deg) scaleX(0.38);
  }
}

@keyframes world-door-close {
  from {
    filter: drop-shadow(0.75rem 0.35rem 0.35rem rgb(39 52 112 / 18%));
    transform: skewY(-7deg) scaleX(0.38);
  }
  to {
    filter: drop-shadow(0 0.35rem 0.22rem rgb(39 52 112 / 0%));
    transform: skewY(0) scaleX(1);
  }
}

@keyframes world-door-glow {
  0%,
  100% {
    filter: drop-shadow(0.75rem 0.35rem 0.35rem rgb(39 52 112 / 18%));
    transform: skewY(-7deg) scaleX(0.38);
  }
  50% {
    filter: drop-shadow(0.9rem 0.35rem 0.8rem rgb(255 181 72 / 76%));
    transform: skewY(-7deg) scaleX(0.42);
  }
}

@keyframes world-sun-bright {
  0%,
  100% {
    filter: brightness(1);
    transform: scale(1);
  }
  50% {
    filter: brightness(1.22);
    transform: scale(1.16);
  }
}

@keyframes world-sun-rise {
  from {
    filter: brightness(0.88);
    transform: translateY(2.2rem) scale(0.88);
  }
  to {
    filter: brightness(1.08);
    transform: translateY(-0.65rem) scale(1.06);
  }
}

@keyframes world-sun-set {
  from {
    filter: brightness(1.08);
    transform: translateY(-0.5rem) scale(1.04);
  }
  to {
    filter: saturate(0.88) brightness(0.9);
    transform: translateY(1.8rem) scale(0.94);
  }
}

@keyframes world-scene-pop {
  0%,
  100% {
    filter: brightness(1);
  }
  45% {
    filter: brightness(1.16) saturate(1.08);
  }
}

@keyframes world-robot-question {
  0%,
  100% {
    transform: translateY(-0.4rem) rotate(-2deg) scale(var(--robot-scale));
  }
  45% {
    transform: translateY(-0.5rem) rotate(7deg) scale(var(--robot-scale));
  }
}

@keyframes world-scene-ellipsis {
  0%,
  100% {
    opacity: 0.86;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}


@media (prefers-reduced-motion: reduce) {
  .lens-stage[data-story-active] .world-robot,
  .lens-stage[data-story-active] .world-ground-shadow--robot,
  .world-fridge__door,
  .world-map__fold {
    transition: none !important;
  }

  .world-robot__figure,
  .world-robot__leg,
  .world-map__route,
  .world-discovery,
  .world-discovery__shape {
    transition: none !important;
  }

  .world-discovery__shape,
  .world-discovery::after,
  .world-star,
  .world-portal span,
  .world-robot__antenna::before,
  .world-robot__antenna::after,
  .world-robot__head i,
  .reply-token,
  .token-film,
  .token-frame,
  .reply-window__cursor,
  .sentence-flow__cursor,
  .sentence-flow__token,
  .candidate-rail__choice,
  .world-robot,
  .world-robot__arm,
  .world-house,
  .world-house__door,
  .living-world,
  .world-sun,
  .world-robot::after,
  .world-robot__body::before,
  .story-sentence .story-cursor {
    animation: none !important;
  }
}