.installation-case-screen {
  background: #0b0c0e;
  color: #f7f7f4;
}

.installation-case-container {
  width: min(1180px, calc(100% - 48px));
}

.installation-scene__heading span,
.installation-diagnosis__machine > span,
.installation-comparison__item > span {
  color: #aeb1b2;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.installation-scene__heading h1 {
  margin-top: 10px;
  color: #fff;
  font-size: clamp(40px, 4.4vw, 62px);
  line-height: .96;
}

.installation-scene__heading p {
  margin-top: 18px;
  color: #d2d3d3;
  font-size: 17px;
  line-height: 1.42;
}

.installation-comparison__rib {
  position: absolute;
  display: block;
  border-radius: 999px;
  background: linear-gradient(#f1eee5, #aca79d);
  box-shadow: 0 2px 5px rgb(0 0 0 / 30%);
}

.installation-machine__material-mark {
  position: absolute;
  z-index: 6;
  left: 47%;
  top: 54%;
  border: 1px solid rgb(127 137 255 / 68%);
  border-radius: 4px;
  background: rgb(35 39 58 / 88%);
  padding: 2px 4px;
  color: #dce0ff;
  font: 700 7px/1 ui-monospace, monospace;
  letter-spacing: .04em;
  pointer-events: none;
}

.installation-scene {
  display: grid;
  grid-template-columns: minmax(280px, .7fr) minmax(580px, 1.3fr);
  grid-template-areas:
    "heading machine"
    "panel machine";
  gap: 16px 28px;
  align-items: end;
}

.installation-scene.is-first-version {
  grid-template-columns: minmax(260px, .55fr) minmax(650px, 1.45fr);
  grid-template-areas: "heading machine";
  align-items: center;
}

.installation-scene.is-second-version {
  grid-template-areas: "heading machine";
  align-items: center;
}

.installation-scene.is-first-version .installation-scene__heading h1 {
  max-width: 8ch;
}

.installation-scene__heading { grid-area: heading; }
.installation-scene__heading h1 { max-width: 9ch; }
.installation-scene__heading p { max-width: 430px; }

.installation-scene__mobile-install-action {
  display: none;
}

.installation-scene__machine-card {
  grid-area: machine;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 24px;
  background: #181a1c;
  box-shadow: 0 28px 70px rgb(0 0 0 / 34%);
}

.installation-scene__topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 15px;
  color: #aeb1b2;
  font-size: 10px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.installation-scene__topline strong { color: #fff; }

.installation-machine {
  position: relative;
  min-height: 590px;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 38px 38px,
    linear-gradient(rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 38px 38px,
    radial-gradient(circle at 52% 42%, #4a4d50, #242629 49%, #0d0e10 82%);
  perspective: 900px;
}

.installation-machine__body {
  position: absolute;
  z-index: 2;
  left: 14%;
  top: 28%;
  width: 72%;
  height: 65%;
  border: 1px solid #707579;
  border-radius: 34px 36px 18px 20px;
  background: linear-gradient(145deg, #515559, #292c2f 48%, #101214);
  box-shadow: inset 14px 0 26px rgb(255 255 255 / 4%), 22px 28px 36px rgb(0 0 0 / 36%);
}

.installation-machine__side {
  position: absolute;
  inset: 4% 4% 4% auto;
  width: 20%;
  border-left: 1px solid rgb(255 255 255 / 13%);
  background: linear-gradient(90deg, transparent, rgb(0 0 0 / 24%));
}

.installation-machine__display {
  position: absolute;
  left: 23%;
  top: 24%;
  width: 39%;
  height: 13%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7%;
  border: 1px solid #08090a;
  border-radius: 8px;
  background: #10191b;
}

.installation-machine__display i {
  width: 8%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #9bcfc8;
  box-shadow: 0 0 8px rgb(155 207 200 / 40%);
}

.installation-machine__spout {
  position: absolute;
  left: 31%;
  top: 44%;
  width: 28%;
  height: 17%;
  border-radius: 6px 6px 14px 14px;
  background: linear-gradient(100deg, #8b9296, #dadcdd 42%, #555b60);
}

.installation-machine__spout i {
  position: absolute;
  bottom: -24%;
  width: 16%;
  height: 34%;
  border-radius: 0 0 6px 6px;
  background: #101214;
}

.installation-machine__spout i:first-child { left: 23%; }
.installation-machine__spout i:last-child { right: 23%; }

.installation-machine__tray {
  position: absolute;
  left: 19%;
  bottom: 8%;
  width: 54%;
  height: 12%;
  border-radius: 5px 5px 13px 13px;
  background: repeating-linear-gradient(90deg, #202326 0 5px, #62686c 5px 7px);
}

.installation-machine__opening {
  position: absolute;
  z-index: 4;
  left: 28%;
  top: 21%;
  width: 44%;
  height: 16%;
  border: 4px solid #0b0c0e;
  border-radius: 10px;
  background: radial-gradient(ellipse, #34373a, #050607 73%);
  transform: perspective(550px) rotateX(56deg);
}

.installation-machine__opening span {
  position: absolute;
  inset: 18% 31%;
  border: 1px solid #6d7478;
  border-radius: 50%;
  background: #151718;
}

.installation-machine__lid {
  position: absolute;
  z-index: 7;
  left: 28%;
  top: 6%;
  width: 44%;
  height: 25%;
  transform: rotateX(-54deg) translateY(-12px);
  transform-origin: 50% 100%;
}

.installation-machine__lid-surface {
  position: absolute;
  inset: 0;
  border: 1px solid #767b7f;
  border-radius: 14px 14px 7px 7px;
  background: linear-gradient(145deg, #4f5356, #222426 62%, #0e0f11);
  box-shadow: 0 12px 19px rgb(0 0 0 / 37%);
}

.installation-machine__lid-rim {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 10%;
  height: 18%;
  border-radius: 999px;
  background: linear-gradient(90deg, #111315, #7d8285 48%, #151719);
}

.installation-machine__lid-catch {
  position: absolute;
  left: 47%;
  bottom: -14%;
  width: 7%;
  height: 22%;
  border-radius: 2px 2px 5px 5px;
  background: #b4b8ba;
}

.installation-machine__seat {
  position: absolute;
  z-index: 12;
  left: 43%;
  top: 27%;
  width: 14%;
  height: 12%;
  border-radius: 10px;
  background: #0b0d0f;
  box-shadow: inset 0 3px 8px #000, 0 0 0 2px rgb(205 255 122 / 20%);
  color: inherit;
  cursor: pointer;
  appearance: none;
}

.installation-machine__seat-ghost { display: none; }

.installation-machine.is-first-version .installation-machine__seat,
.installation-machine.is-second-version .installation-machine__seat {
  left: 47%;
  top: 21%;
  width: 20%;
  height: 30%;
  min-width: 72px;
  min-height: 92px;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 16px;
  background: linear-gradient(145deg, rgb(16 19 20 / 96%), rgb(5 7 8 / 98%));
  box-shadow: inset 0 3px 14px #000, 0 0 0 2px rgb(205 255 122 / 13%);
}

.installation-machine.is-first-version .installation-machine__seat-ghost,
.installation-machine.is-second-version .installation-machine__seat-ghost {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 48%;
  display: block;
  width: auto;
  height: 84%;
  max-width: none;
  opacity: .2;
  transform: translate(-50%, -50%);
  filter: brightness(0) saturate(100%) invert(24%) sepia(100%) saturate(5800%) hue-rotate(241deg) brightness(96%) contrast(110%);
  pointer-events: none;
}

.installation-machine__seat-hole {
  position: absolute;
  z-index: 3;
  bottom: 14%;
  width: 17%;
  aspect-ratio: 1;
  border: 1px solid #969b9e;
  border-radius: 50%;
  background: #030405;
}

.installation-machine__seat-hole--left { left: 16%; }
.installation-machine__seat-hole--right { right: 16%; }

.installation-machine__seat-outline {
  position: absolute;
  z-index: 4;
  inset: -13px;
  border: 2px dashed #cdff7a;
  border-radius: 15px;
  opacity: .5;
  animation: installation-target-pulse 1.7s ease-in-out 350ms infinite;
}

.installation-machine.is-first-version .installation-machine__seat-hole,
.installation-machine.is-second-version .installation-machine__seat-hole {
  bottom: 6%;
  width: 15%;
  border-color: #777e82;
}

.installation-machine.is-first-version .installation-machine__seat-hole--left,
.installation-machine.is-second-version .installation-machine__seat-hole--left { left: 25%; }
.installation-machine.is-first-version .installation-machine__seat-hole--right,
.installation-machine.is-second-version .installation-machine__seat-hole--right { right: 25%; }

.installation-machine.is-first-version .installation-machine__seat-outline,
.installation-machine.is-second-version .installation-machine__seat-outline {
  inset: -7px;
  border-style: solid;
  border-color: rgb(216 255 40 / 72%);
  border-radius: 20px;
  box-shadow: 0 0 0 6px rgb(216 255 40 / 6%);
}

.installation-machine__seat:focus-visible,
.installation-machine__drag-part:focus-visible {
  outline: 3px solid #3d3bff;
  outline-offset: 4px;
}

.installation-machine.show-target .installation-machine__seat-outline {
  opacity: 1;
  box-shadow: 0 0 24px rgb(205 255 122 / 28%);
}

.installation-scene.is-drop-ready .installation-machine__seat-outline,
.installation-machine__seat[data-drop-ready="true"] .installation-machine__seat-outline {
  border-style: solid;
  border-color: #cdff7a;
  opacity: 1;
  background: rgb(205 255 122 / 8%);
  box-shadow: 0 0 0 7px rgb(205 255 122 / 12%), 0 0 34px rgb(205 255 122 / 42%);
  animation: none;
}

.installation-machine__drag-part {
  --drag-x: 0px;
  --drag-y: 0px;
  --lift-y: 0px;
  --drag-scale: 1;
  position: absolute;
  z-index: 18;
  right: 5%;
  bottom: 8%;
  width: 31%;
  aspect-ratio: 1.15;
  border: 2px solid rgb(205 255 122 / 72%);
  border-radius: 18px;
  background: rgb(16 18 20 / 82%);
  cursor: grab;
  touch-action: none;
  transform: translate(var(--drag-x), calc(var(--drag-y) + var(--lift-y))) scale(var(--drag-scale));
  box-shadow: 0 0 0 6px rgb(205 255 122 / 8%), 0 16px 30px rgb(0 0 0 / 30%);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 240ms ease;
  animation: installation-drag-ready 1.8s ease-in-out infinite;
}

.installation-machine.is-first-version .installation-machine__drag-part,
.installation-machine.is-second-version .installation-machine__drag-part {
  right: 3%;
  top: 23%;
  bottom: auto;
  width: 22%;
  height: 31%;
  aspect-ratio: auto;
  border-color: rgb(216 255 40 / 74%);
  background: rgb(11 14 15 / 88%);
}

.installation-machine.is-first-version .installation-machine__drag-part::before,
.installation-machine.is-second-version .installation-machine__drag-part::before {
  content: "";
  position: absolute;
  inset: -2px;
  border: 2px solid #d8ff28;
  border-radius: inherit;
  opacity: .72;
  animation: installation-pick-frame 1.6s ease-in-out infinite;
  pointer-events: none;
}

.installation-machine__drag-part.is-dragging {
  --drag-scale: 1.04;
  border-color: #cdff7a;
  box-shadow: 0 16px 30px rgb(0 0 0 / 45%);
  cursor: grabbing;
  animation: none;
  transition: none;
}

.installation-machine__drag-part.is-magnetic {
  border-color: #cdff7a;
  box-shadow: 0 0 0 5px rgb(205 255 122 / 12%), 0 18px 34px rgb(0 0 0 / 45%);
}

.installation-machine__drag-part.is-returning {
  --drag-scale: 1;
  cursor: default;
  animation: none;
  transition: transform 300ms cubic-bezier(.22, .82, .34, 1), border-color 180ms ease, box-shadow 180ms ease;
}

.installation-machine__drag-part.is-snapping {
  --drag-scale: 1;
  border-color: #cdff7a;
  box-shadow: 0 0 0 6px rgb(205 255 122 / 14%), 0 18px 34px rgb(0 0 0 / 42%);
  cursor: default;
  pointer-events: none;
  transition: transform 220ms cubic-bezier(.22, .82, .34, 1.04), border-color 160ms ease, box-shadow 160ms ease;
}

.installation-machine__drag-part.is-snap-locking {
  transition-duration: 190ms;
  transition-timing-function: cubic-bezier(.3, .72, .36, 1);
}

.installation-scene.is-tap-selected .installation-machine__drag-part {
  --drag-scale: 1.025;
  border-color: #d8ff28;
  box-shadow: 0 0 0 7px rgb(216 255 40 / 13%), 0 18px 34px rgb(0 0 0 / 40%);
  animation: none;
}

.installation-scene.is-tap-selected .installation-machine__seat-outline,
.installation-scene.is-near-target .installation-machine__seat-outline,
.installation-scene.has-repeat-cue .installation-machine__seat-outline {
  border-color: #d8ff28;
  opacity: 1;
  box-shadow: 0 0 0 8px rgb(216 255 40 / 12%), 0 0 34px rgb(216 255 40 / 34%);
}

.installation-machine__drag-part img,
.installation-machine__installed-part img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88%;
  max-width: none;
  transform: translate(-50%, -50%) rotate(-8deg);
  filter: drop-shadow(0 10px 8px rgb(0 0 0 / 45%));
  pointer-events: none;
}

.installation-machine.is-first-version .installation-machine__drag-part img,
.installation-machine.is-first-version .installation-machine__installed-part img,
.installation-machine.is-second-version .installation-machine__drag-part img,
.installation-machine.is-second-version .installation-machine__installed-part img {
  left: 50%;
  top: 50%;
  width: auto;
  height: 86%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 11px 8px rgb(0 0 0 / 48%)) drop-shadow(0 0 7px rgb(216 255 40 / 9%));
}

.installation-machine.is-first-version .installation-machine__drag-part:not(.is-dragging, .is-snapping, .is-returning) img,
.installation-machine.is-second-version .installation-machine__drag-part:not(.is-dragging, .is-snapping, .is-returning) img {
  animation: installation-part-float 1.6s ease-in-out infinite;
}

.installation-machine.is-material-version .installation-machine__drag-part img,
.installation-machine.is-material-version .installation-machine__installed-part img {
  filter: saturate(.72) sepia(.1) hue-rotate(185deg) brightness(.98) drop-shadow(0 10px 8px rgb(0 0 0 / 45%));
}

.installation-machine__installed-part {
  position: absolute;
  z-index: 15;
  left: 44%;
  top: 26.2%;
  width: 12%;
  aspect-ratio: 1.05;
  transform: rotate(0deg);
  transform-origin: center;
  animation: installation-snap 360ms cubic-bezier(.22, .82, .34, 1.14) both;
}

.installation-machine.is-first-version .installation-machine__installed-part,
.installation-machine.is-second-version .installation-machine__installed-part {
  left: 51%;
  top: 21%;
  width: 12%;
  height: 30%;
  aspect-ratio: auto;
  animation: installation-first-installed 240ms ease-out both;
}

.installation-machine__fit-points {
  position: absolute;
  z-index: 20;
  left: 45.2%;
  top: 34%;
  width: 9.6%;
  display: flex;
  justify-content: space-between;
  opacity: 0;
}

.installation-machine.is-installed .installation-machine__fit-points { opacity: 1; }
.installation-machine.is-installed .installation-machine__seat-outline {
  border-style: solid;
  border-color: #cdff7a;
  opacity: .82;
  box-shadow: 0 0 0 4px rgb(205 255 122 / 13%), 0 0 18px rgb(205 255 122 / 22%);
  animation: none;
}
.installation-machine.is-installed .installation-machine__seat-ghost { opacity: 0; }
.installation-machine.is-installed .installation-machine__seat {
  cursor: default;
  pointer-events: none;
}
.installation-machine.is-first-version.is-installed .installation-machine__seat-outline,
.installation-machine.is-first-version.is-installed .installation-machine__fit-points,
.installation-machine.is-second-version.is-installed .installation-machine__seat-outline,
.installation-machine.is-second-version.is-installed .installation-machine__fit-points {
  opacity: 0;
  box-shadow: none;
}
.installation-machine__fit-points i {
  width: 8px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #cdff7a;
  box-shadow: 0 0 0 5px rgb(205 255 122 / 17%);
}

.installation-machine.is-first-version .installation-machine__fit-points,
.installation-machine.is-second-version .installation-machine__fit-points {
  left: 53.3%;
  top: 45.2%;
  width: 7.4%;
}

.installation-machine__contact-flash {
  position: absolute;
  z-index: 24;
  left: 53.3%;
  top: 45.2%;
  width: 7.4%;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.installation-machine__contact-flash i {
  width: 10px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #d8ff28;
  opacity: 0;
}

.installation-machine.has-contact-flash .installation-machine__contact-flash i,
.installation-machine.is-first-version.is-installed .installation-machine__contact-flash i {
  animation: installation-contact-flash 420ms ease-out both;
}

.installation-machine.has-contact-flash .installation-machine__contact-flash i:last-child,
.installation-machine.is-first-version.is-installed .installation-machine__contact-flash i:last-child {
  animation-delay: 45ms;
}

.installation-machine__instruction {
  position: absolute;
  z-index: 28;
  left: 4%;
  bottom: 4%;
  max-width: 280px;
  margin: 0;
  border-left: 3px solid #3d3bff;
  border-radius: 3px;
  background: rgb(8 10 11 / 72%);
  padding: 8px 10px;
  color: #d8d9da;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  pointer-events: none;
}

.installation-machine__hint-path {
  position: absolute;
  z-index: 17;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  opacity: 0;
  pointer-events: none;
}

.installation-machine__hint-path > path {
  fill: none;
  stroke: #d8ff28;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 6 4;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 4px rgb(216 255 40 / 80%)) drop-shadow(0 0 9px rgb(216 255 40 / 42%));
  animation: installation-hint-dash 1.1s linear infinite;
}

.installation-machine__hint-path marker polygon {
  fill: #d8ff28;
}

.installation-machine__hint-path path.is-mobile { display: none; }

.installation-machine[data-install-state="idle"] .installation-machine__hint-path {
  animation: installation-hint-pulse 2s ease-in-out .7s infinite both;
}

.installation-scene.show-hint-path .installation-machine__hint-path {
  animation: installation-hint-once 1.2s ease 1 both;
}

.installation-scene.is-near-target .installation-machine {
  transform: scale(1.035);
  transform-origin: 57% 38%;
}

.installation-machine {
  transition: transform 220ms ease;
}

.installation-machine__force {
  position: absolute;
  z-index: 20;
  left: 50%;
  top: 9%;
  color: #ff8b7c;
  text-align: center;
  opacity: 0;
}

.installation-machine.is-testing .installation-machine__force { opacity: 1; }
.installation-machine__force span {
  position: relative;
  display: block;
  width: 2px;
  height: 70px;
  margin: 0 auto 5px;
  background: currentColor;
}

.installation-machine__force span::after {
  content: "";
  position: absolute;
  left: -4px;
  bottom: 0;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
}

.installation-machine__force strong {
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.installation-machine.is-testing .installation-machine__lid {
  animation: installation-lid-cycle 920ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-testing .installation-machine__installed-part {
  animation: installation-part-load 920ms ease both;
}

.installation-machine.is-second-version.is-testing .installation-machine__lid {
  animation: installation-lid-success-test 1280ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-second-version.is-testing .installation-machine__installed-part {
  animation: installation-part-success-test 1280ms ease both;
}

.installation-machine__crack {
  position: absolute;
  z-index: 5;
  left: 54%;
  top: 23%;
  width: 6px;
  height: 49%;
  background: #2a1111;
  filter: drop-shadow(0 0 2px #ff8172) drop-shadow(0 0 5px rgb(255 93 77 / 70%));
  clip-path: polygon(20% 0, 100% 0, 46% 28%, 92% 48%, 20% 69%, 64% 100%, 0 100%, 23% 70%, 0 48%, 39% 27%);
  opacity: 0;
  transform: rotate(-13deg) scaleY(.35);
  transform-origin: 50% 0;
}

.installation-machine.is-cracked .installation-machine__crack {
  opacity: 1;
  transform: rotate(-13deg) scaleY(1);
}

.installation-machine.is-cracked .installation-machine__installed-part {
  filter: drop-shadow(0 0 10px rgb(255 102 87 / 86%));
}

.installation-machine.is-cracked .installation-machine__installed-part::before {
  position: absolute;
  z-index: -1;
  inset: -28%;
  border: 2px solid rgb(255 105 90 / 88%);
  border-radius: 50%;
  background: radial-gradient(circle, rgb(255 71 55 / 20%), transparent 68%);
  box-shadow: 0 0 0 7px rgb(255 105 90 / 12%), 0 0 24px rgb(255 80 64 / 72%);
  content: "";
}

.installation-machine.is-cracked .installation-machine__seat-outline {
  border-color: #ff695a;
  box-shadow: 0 0 0 4px rgb(255 105 90 / 15%), 0 0 20px rgb(255 105 90 / 30%);
}

.installation-machine.will-crack .installation-machine__crack {
  animation: installation-crack-appear 920ms ease both;
}

.installation-machine__failure-marker {
  position: absolute;
  z-index: 24;
  left: 57%;
  top: 29%;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgb(255 105 90 / 76%);
  border-radius: 999px;
  background: rgb(66 15 12 / 92%);
  padding: 7px 10px;
  color: #ffd7d1;
  box-shadow: 0 8px 24px rgb(0 0 0 / 34%), 0 0 20px rgb(255 91 74 / 18%);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .07em;
  white-space: nowrap;
}

.installation-machine__failure-marker::before {
  position: absolute;
  right: 100%;
  width: 42px;
  height: 1px;
  background: #ff695a;
  content: "";
  transform: rotate(15deg);
  transform-origin: 100% 50%;
}

.installation-machine__failure-marker i {
  width: 8px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #ff695a;
  box-shadow: 0 0 0 4px rgb(255 105 90 / 14%);
}

.installation-machine__snap-feedback {
  position: absolute;
  z-index: 30;
  left: 57%;
  top: 39%;
  display: flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgb(205 255 122 / 48%);
  border-radius: 999px;
  background: rgb(30 39 22 / 92%);
  padding: 7px 10px;
  color: #eaffc9;
  box-shadow: 0 10px 24px rgb(0 0 0 / 28%), 0 0 20px rgb(205 255 122 / 16%);
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.installation-machine__snap-feedback span {
  display: grid;
  width: 18px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: #cdff7a;
  color: #17200b;
}

.installation-machine__field-action {
  position: absolute;
  z-index: 32;
  left: 4%;
  bottom: 4%;
  width: min(430px, 48%);
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 18px;
  background: rgb(20 22 24 / 94%);
  padding: 14px;
  box-shadow: 0 18px 42px rgb(0 0 0 / 42%);
}

.installation-machine__field-note {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 12px;
  color: #e4e5e5;
  font-size: 13px;
  line-height: 1.35;
}

.installation-machine__field-note span {
  flex: 0 0 auto;
  width: 9px;
  aspect-ratio: 1;
  margin-top: 4px;
  border-radius: 50%;
  background: #cdff7a;
  box-shadow: 0 0 0 5px rgb(205 255 122 / 11%);
}

.installation-machine__field-note p { margin: 0; }

.installation-machine.is-first-version.is-installed:not(.is-testing, .is-cracked) .installation-machine__field-action {
  visibility: hidden;
  animation: installation-action-reveal 220ms ease 560ms forwards;
}

.installation-machine__field-action .btn {
  width: 100%;
  min-height: 50px;
  box-shadow: 0 12px 30px rgb(0 0 0 / 36%), 0 0 0 4px rgb(65 60 255 / 10%);
}

.installation-machine__field-action.is-failure .btn {
  background: #ff695a;
  color: #260806;
  box-shadow: 0 12px 30px rgb(0 0 0 / 36%), 0 0 24px rgb(255 105 90 / 22%);
}

.installation-scene.has-test-failure .installation-machine {
  animation: installation-fault-flash 620ms ease both;
}

.installation-panel {
  grid-area: panel;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 13%);
  border-radius: 18px;
  background: #1d1f21;
}

.installation-panel__status {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  min-height: 66px;
  padding: 14px;
  color: #e4e5e5;
  font-size: 13px;
  line-height: 1.35;
}

.installation-panel__status span {
  flex: 0 0 auto;
  width: 9px;
  aspect-ratio: 1;
  margin-top: 4px;
  border-radius: 50%;
  background: #cdff7a;
  box-shadow: 0 0 0 5px rgb(205 255 122 / 11%);
}

.installation-panel__status p { margin: 0; }

.installation-panel__status.is-failure {
  min-height: 82px;
  border: 1px solid rgb(255 105 90 / 62%);
  border-radius: 13px;
  background: linear-gradient(105deg, rgb(103 28 22 / 88%), rgb(52 24 22 / 92%));
  color: #ffe9e5;
  box-shadow: 0 0 0 4px rgb(255 105 90 / 9%), 0 12px 28px rgb(0 0 0 / 24%);
}

.installation-panel__status.is-failure > span {
  display: grid;
  width: 24px;
  margin-top: 0;
  place-items: center;
  background: #ff695a;
  color: #250705;
  box-shadow: 0 0 0 6px rgb(255 105 90 / 14%);
  font-size: 15px;
  font-weight: 900;
}

.installation-panel__status.is-failure strong {
  display: block;
  color: #fff;
  font-size: 15px;
  line-height: 1.2;
}

.installation-panel__status.is-failure p {
  margin-top: 5px;
  color: #ffd4ce;
  font-size: 13px;
}

.installation-scene.has-test-failure .installation-scene__heading > div > span,
.installation-scene.has-test-failure .installation-scene__topline strong {
  color: #ff8b7c;
}

.installation-scene.has-test-failure .installation-scene__machine-card {
  border-color: rgb(255 105 90 / 48%);
  box-shadow: inset 0 0 0 1px rgb(255 105 90 / 10%), 0 20px 48px rgb(0 0 0 / 34%);
}

.installation-panel__controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 0 12px 12px;
}

.installation-scene.has-test-failure .installation-panel__controls .btn {
  box-shadow: 0 0 0 1px rgb(255 255 255 / 9%), 0 10px 24px rgb(0 0 0 / 28%);
}

.installation-diagnosis {
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 22px;
  background: #191b1d;
  color: #fff;
}

.installation-diagnosis__machine { padding: 14px; }

.installation-diagnosis__part {
  position: relative;
  height: 250px;
  margin-top: 10px;
  overflow: hidden;
  border-radius: 14px;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 28px 28px,
    radial-gradient(circle, #515457, #202224 72%);
}

.installation-diagnosis__part img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 74%;
  max-width: none;
  transform: translate(-50%, -50%) rotate(-7deg);
  filter: drop-shadow(0 15px 12px rgb(0 0 0 / 46%));
}

.installation-diagnosis__crack {
  position: absolute;
  z-index: 4;
  left: 53%;
  top: 28%;
  width: 8px;
  height: 38%;
  background: #611810;
  clip-path: polygon(0 0, 100% 0, 45% 28%, 100% 49%, 24% 70%, 71% 100%, 0 100%, 28% 70%, 0 48%, 51% 28%);
  filter: drop-shadow(0 0 3px #ffefe9) drop-shadow(0 0 9px #ff5946);
  transform: rotate(-19deg);
}

.installation-diagnosis__stress {
  position: absolute;
  left: 43%;
  top: 21%;
  width: 28%;
  height: 49%;
  border: 3px solid #ff695a;
  border-radius: 50%;
  box-shadow: 0 0 0 7px rgb(255 105 90 / 11%), 0 0 28px rgb(255 79 63 / 35%);
  opacity: .86;
}

.installation-diagnosis__load-label {
  position: absolute;
  z-index: 6;
  right: 9%;
  top: 16%;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgb(255 255 255 / 22%);
  border-radius: 999px;
  background: rgb(35 13 11 / 91%);
  padding: 6px 9px;
  color: #ffe5e1;
  box-shadow: 0 8px 20px rgb(0 0 0 / 28%);
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
}

.installation-diagnosis__load-label i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ff695a;
  box-shadow: 0 0 0 4px rgb(255 105 90 / 16%);
}

.installation-diagnosis__load-label::after {
  position: absolute;
  right: 82%;
  top: 100%;
  width: 58px;
  height: 1px;
  background: #ff695a;
  content: "";
  transform: rotate(145deg);
  transform-origin: 100% 50%;
}

.installation-diagnosis.has-cue-material .installation-diagnosis__part img { filter: sepia(.25) saturate(.65) drop-shadow(0 15px 12px rgb(0 0 0 / 46%)); }
.installation-diagnosis.has-cue-geometry .installation-diagnosis__stress { opacity: 1; box-shadow: 0 0 0 8px rgb(255 105 90 / 14%), 0 0 34px rgb(255 79 63 / 48%); }
.installation-diagnosis.is-confirmed .installation-diagnosis__stress { border-width: 4px; }
.installation-diagnosis.has-cue-print-speed .installation-diagnosis__stress,
.installation-diagnosis.has-cue-appearance .installation-diagnosis__stress { border-style: dashed; opacity: .62; }

.installation-diagnosis > p {
  min-height: 52px;
  margin: 0;
  border-top: 1px solid rgb(255 255 255 / 10%);
  padding: 12px 14px;
  color: #d7d8d8;
  font-size: 12px;
  line-height: 1.35;
}

.task1-diagnosis-interactive,
.task1-correction-interactive {
  display: grid;
  grid-template-columns: minmax(310px, .85fr) minmax(430px, 1.15fr);
  gap: 22px;
  align-items: start;
}

.task1-diagnosis-instruction {
  margin: 0 0 10px;
  color: #26282a;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
}

.installation-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  border: 1px solid rgb(0 0 0 / 12%);
  border-radius: 20px;
  background: #ececec;
  padding: 12px;
}

.installation-comparison__item { min-width: 0; }
.installation-comparison__item > div {
  position: relative;
  height: 190px;
  overflow: hidden;
  margin-top: 7px;
  border-radius: 13px;
  background: radial-gradient(circle, #606366, #242628 72%);
}

.installation-comparison__item img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 87%;
  max-width: none;
  transform: translate(-50%, -50%) rotate(-7deg);
}

.installation-comparison__item small {
  display: block;
  min-height: 44px;
  padding-top: 8px;
  color: #4f5153;
  font-size: 11px;
  line-height: 1.3;
}

.installation-comparison__arrow {
  color: #413cff;
  font-size: 28px;
  font-weight: 700;
}

.installation-comparison__weak-zone,
.installation-comparison__rib {
  position: absolute;
  left: 48%;
  top: 31%;
  width: 25%;
  height: 5%;
  transform: rotate(-49deg);
}

.installation-comparison__crack {
  position: absolute;
  z-index: 4;
  left: 58%;
  top: 30%;
  width: 6px;
  height: 34%;
  background: #341313;
  clip-path: polygon(0 0, 100% 0, 42% 25%, 100% 46%, 18% 68%, 72% 100%, 0 100%, 26% 69%, 0 47%, 48% 25%);
  filter: drop-shadow(0 0 3px rgb(255 105 90 / 80%));
  transform: rotate(-18deg);
}

.installation-comparison__weak-zone {
  border: 2px dashed #ff7462;
  border-radius: 999px;
}

.installation-comparison__rib {
  left: 50%;
  top: 33%;
  width: 17%;
  height: 39%;
  border: 3px solid rgb(255 255 255 / 62%);
  border-top-width: 5px;
  border-bottom-width: 7px;
  border-radius: 46% 54% 38% 42%;
  background: linear-gradient(90deg, rgb(235 232 224 / 74%), rgb(124 129 136 / 78%));
  box-shadow: inset 0 0 0 2px rgb(91 87 255 / 36%), 0 0 0 5px rgb(91 87 255 / 11%), 0 5px 9px rgb(0 0 0 / 34%);
  transform: rotate(-15deg);
  opacity: 0;
}

.installation-comparison__rib::after {
  content: "";
  position: absolute;
  left: -28%;
  right: -30%;
  bottom: -8px;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(#e8e5dd, #8f949a);
  box-shadow: inset 0 0 0 1px rgb(91 87 255 / 38%);
}

.installation-comparison__rib span {
  position: absolute;
  left: 50%;
  bottom: -35px;
  width: max-content;
  border-radius: 999px;
  background: #413cff;
  padding: 4px 7px;
  color: #fff;
  font: 700 8px/1 Arial, sans-serif;
  letter-spacing: .03em;
  transform: translateX(-50%) rotate(15deg);
}

.installation-comparison__material-mark {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: none;
  border: 1px solid #7f89ff;
  border-radius: 6px;
  background: #292e47;
  padding: 5px 7px;
  color: #e6e8ff;
  font-style: normal;
  line-height: 1;
  text-align: left;
}

.installation-comparison__change-note {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: none;
  max-width: 92px;
  border: 1px solid rgb(255 255 255 / 22%);
  border-radius: 6px;
  background: rgb(24 26 28 / 88%);
  padding: 5px 7px;
  color: #eef0f0;
  font: 700 8px/1.25 Arial, sans-serif;
  text-align: left;
}

.installation-comparison.is-faster-print .installation-comparison__change-note,
.installation-comparison.is-smoother-surface .installation-comparison__change-note {
  display: block;
}

.installation-comparison.is-faster-print .installation-comparison__change-note::before {
  content: "Быстрее печать · геометрия без изменений";
}

.installation-comparison.is-smoother-surface .installation-comparison__change-note::before {
  content: "Гладкая поверхность · прочность без изменений";
}

.installation-comparison.is-smoother-surface .installation-comparison__item.is-new img {
  filter: contrast(.92) brightness(1.08) drop-shadow(0 10px 8px rgb(0 0 0 / 38%));
}

.installation-comparison__material-mark strong,
.installation-comparison__material-mark span {
  display: block;
}

.installation-comparison__material-mark strong {
  font: 800 10px/1 ui-monospace, monospace;
}

.installation-comparison__material-mark span {
  margin-top: 3px;
  color: #c9ceff;
  font: 700 8px/1 Arial, sans-serif;
}

.installation-comparison.is-stronger-material .installation-comparison__item.is-new > div {
  background: radial-gradient(circle, #606a83, #202436 72%);
  box-shadow: inset 0 0 0 2px rgb(127 137 255 / 65%), 0 0 18px rgb(91 87 255 / 14%);
}

.installation-comparison.is-stronger-material .installation-comparison__item.is-new img {
  filter: saturate(.88) sepia(.18) hue-rotate(178deg) brightness(.88) contrast(1.12);
}

.installation-comparison.is-stronger-material .installation-comparison__material-mark {
  display: block;
}

.installation-comparison.is-reinforced .installation-comparison__rib {
  opacity: 1;
  animation: installation-rib-grow 380ms ease both;
}

.installation-hypothesis {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 34px minmax(0, 1fr);
  align-items: center;
  gap: 7px;
  overflow: hidden;
  border: 1px solid rgb(0 0 0 / 13%);
  border-radius: 22px;
  background: #ececec;
  padding: 11px;
}

.installation-hypothesis__item {
  min-width: 0;
}

.installation-hypothesis__item > span {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
  color: #303234;
  font-size: 10px;
  font-weight: 750;
}

.installation-hypothesis__item > span b {
  border-radius: 999px;
  background: #2d3032;
  padding: 4px 6px;
  color: #fff;
  font-size: 9px;
  letter-spacing: .04em;
}

.installation-hypothesis__item.is-version-two > span b {
  background: #413cff;
}

.installation-hypothesis__model {
  position: relative;
  height: 184px;
  overflow: hidden;
  margin-top: 5px;
  border-radius: 14px;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 22px 22px,
    radial-gradient(circle, #606366, #242628 72%);
}

.installation-hypothesis__item.is-version-two .installation-hypothesis__model {
  box-shadow: inset 0 0 0 2px rgb(65 60 255 / 42%);
}

.installation-hypothesis__model img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88%;
  max-width: none;
  transform: translate(-50%, -50%) rotate(-7deg);
  filter: drop-shadow(0 12px 10px rgb(0 0 0 / 42%));
}

.installation-hypothesis__crack-ring {
  position: absolute;
  z-index: 3;
  left: 47%;
  top: 24%;
  width: 31%;
  height: 48%;
  border: 2px solid #ff695a;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgb(255 105 90 / 10%);
  transform: rotate(-12deg);
}

.installation-hypothesis__arrow {
  display: grid;
  justify-items: center;
  gap: 3px;
  color: #413cff;
}

.installation-hypothesis__arrow span {
  font-size: 8px;
  font-weight: 800;
}

.installation-hypothesis__arrow i {
  font-size: 25px;
  font-style: normal;
  font-weight: 800;
  line-height: 1;
}

.installation-hypothesis__item small {
  display: block;
  min-height: 58px;
  padding-top: 7px;
  color: #4d5052;
  font-size: 10px;
  line-height: 1.3;
}

.installation-hypothesis__geometry {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 3px 3px rgb(0 0 0 / 32%));
  pointer-events: none;
}

.installation-hypothesis__geometry path {
  opacity: 0;
  vector-effect: non-scaling-stroke;
}

.installation-hypothesis__bridge,
.installation-hypothesis__hook-radius,
.installation-hypothesis__mount-rib {
  fill: none;
  stroke: #ddd9cf;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.installation-hypothesis__bridge {
  stroke-width: 12;
}

.installation-hypothesis__hook-radius {
  stroke-width: 14;
}

.installation-hypothesis__notch-fill {
  fill: #d9d5cc;
  stroke: #716cff;
  stroke-width: 1.5;
  stroke-linejoin: round;
}

.installation-hypothesis__mount-rib {
  stroke-width: 7;
}

.installation-hypothesis.is-thin-bridge .installation-hypothesis__bridge,
.installation-hypothesis.is-sharp-hook-transition .installation-hypothesis__hook-radius,
.installation-hypothesis.is-deep-hook-notch .installation-hypothesis__notch-fill,
.installation-hypothesis.is-short-mount-supports .installation-hypothesis__mount-rib {
  opacity: .92;
  stroke: #dcd8ce;
  animation: installation-geometry-reveal 360ms ease both;
}

.installation-hypothesis.is-thin-bridge .installation-hypothesis__bridge,
.installation-hypothesis.is-sharp-hook-transition .installation-hypothesis__hook-radius,
.installation-hypothesis.is-short-mount-supports .installation-hypothesis__mount-rib {
  filter: drop-shadow(0 0 1px #413cff) drop-shadow(0 0 4px rgb(65 60 255 / 65%));
}

.installation-hypothesis__change-label {
  position: absolute;
  z-index: 4;
  right: 7px;
  bottom: 7px;
  border: 1px solid rgb(255 255 255 / 24%);
  border-radius: 999px;
  background: rgb(48 43 218 / 92%);
  padding: 5px 7px;
  color: #fff;
  box-shadow: 0 6px 14px rgb(0 0 0 / 28%);
  font-size: 8px;
  line-height: 1;
}

@keyframes installation-geometry-reveal {
  from { opacity: 0; }
  to { opacity: .92; }
}

@keyframes installation-target-pulse {
  50% { opacity: 1; transform: scale(1.025); }
}

@keyframes installation-drag-ready {
  0%, 100% { box-shadow: 0 0 0 5px rgb(205 255 122 / 7%), 0 16px 30px rgb(0 0 0 / 30%); }
  50% { box-shadow: 0 0 0 9px rgb(205 255 122 / 13%), 0 18px 34px rgb(0 0 0 / 36%); }
}

@keyframes installation-pick-frame {
  0%, 100% { opacity: .55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.025); }
}

@keyframes installation-part-float {
  0%, 100% { transform: translate(-50%, calc(-50% + 1px)); }
  50% { transform: translate(-50%, calc(-50% - 2px)); }
}

@keyframes installation-hint-once {
  0%, 100% { opacity: 0; }
  18%, 72% { opacity: .86; }
}

@keyframes installation-hint-pulse {
  0%, 100% { opacity: .48; }
  48%, 62% { opacity: 1; }
}

@keyframes installation-hint-dash {
  to { stroke-dashoffset: -10; }
}

@keyframes installation-contact-flash {
  0% { opacity: 0; transform: scale(.5); box-shadow: 0 0 0 0 rgb(216 255 40 / 0%); }
  38% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 9px rgb(216 255 40 / 28%); }
  100% { opacity: 0; transform: scale(1.35); box-shadow: 0 0 0 16px rgb(216 255 40 / 0%); }
}

@keyframes installation-first-installed {
  from { opacity: .84; translate: 0 -10px; }
  to { opacity: 1; translate: 0 0; }
}

@keyframes installation-action-reveal {
  from { visibility: hidden; opacity: 0; transform: translateY(7px); }
  to { visibility: visible; opacity: 1; transform: translateY(0); }
}

@keyframes installation-fault-flash {
  0% { box-shadow: inset 0 0 0 0 rgb(255 105 90 / 0%); }
  32% { box-shadow: inset 0 0 80px rgb(255 68 51 / 32%); }
  100% { box-shadow: inset 0 0 38px rgb(255 68 51 / 10%); }
}

@keyframes installation-snap {
  from { opacity: .45; transform: translate(165px, 155px) rotate(18deg) scale(1.55); }
  72% { opacity: 1; transform: translate(-2px, 2px) rotate(-2deg) scale(.98); }
  to { opacity: 1; transform: rotate(0deg); }
}

@keyframes installation-lid-cycle {
  0% { transform: rotateX(-54deg) translateY(-12px); }
  44%, 68% { transform: rotateX(-7deg) translateY(6px); }
  100% { transform: rotateX(-54deg) translateY(-12px); }
}

@keyframes installation-part-load {
  0%, 40%, 100% { scale: 1; }
  56% { scale: .92 1.04; }
}

@keyframes installation-lid-success-test {
  0%, 100% { transform: rotateX(-54deg) translateY(-12px); }
  14%, 24%, 42%, 52%, 70%, 82% { transform: rotateX(-7deg) translateY(6px); }
  31%, 59% { transform: rotateX(-22deg) translateY(-1px); }
}

@keyframes installation-part-success-test {
  0%, 12%, 30%, 40%, 58%, 68%, 86%, 100% { scale: 1; }
  20%, 49%, 77% { scale: .94 1.03; }
}

@keyframes installation-crack-appear {
  0%, 60% { opacity: 0; transform: rotate(-13deg) scaleY(.35); }
  74%, 100% { opacity: 1; transform: rotate(-13deg) scaleY(1); }
}

@keyframes installation-rib-grow {
  from { transform: rotate(-15deg) scale(.1); }
  to { transform: rotate(-15deg) scale(1); }
}

@media (max-width: 900px) {
  .installation-scene,
  .task1-diagnosis-interactive,
  .task1-correction-interactive {
    grid-template-columns: 1fr;
  }

  .installation-scene {
    grid-template-areas: "heading" "machine" "panel";
  }

  .installation-scene.is-first-version {
    grid-template-columns: 1fr;
    grid-template-areas: "heading" "machine";
    align-items: start;
  }

  .installation-scene.is-second-version {
    grid-template-columns: 1fr;
    grid-template-areas: "heading" "machine";
    align-items: start;
  }

  .installation-scene__heading h1 { max-width: none; }
}

@media (min-width: 901px) and (max-height: 820px) {
  .installation-scene.has-test-failure .installation-scene__heading h1 {
    font-size: clamp(40px, 3.8vw, 52px);
  }

  .installation-scene.has-test-failure .installation-scene__heading p {
    margin-top: 12px;
    font-size: 15px;
  }

  .installation-scene.has-test-failure .installation-machine {
    min-height: 500px;
  }
}

@media (max-width: 767px) {
  .installation-case-container { width: min(100% - 24px, 1180px); }

  .installation-case-screen:has(.installation-scene__mobile-install-action) {
    padding-bottom: calc(92px + env(safe-area-inset-bottom));
  }

  .installation-scene {
    gap: 8px;
  }

  .installation-scene__heading > div > span {
    font-size: 9px;
  }

  .installation-scene__heading h1 {
    margin-top: 6px;
    font-size: clamp(30px, 8.8vw, 36px);
    line-height: .94;
  }

  .installation-scene__heading p {
    margin-top: 12px;
    font-size: 15px;
  }

  .installation-scene__machine-card { border-radius: 16px; }
  .installation-scene__topline {
    padding: 9px 11px;
    font-size: 7px;
  }
  .installation-machine { min-height: 430px; }
  .installation-machine__body { left: 6%; width: 82%; }
  .installation-machine__opening,
  .installation-machine__lid { left: 22%; width: 56%; }
  .installation-machine__seat { left: 41%; width: 18%; height: 14%; }
  .installation-machine__drag-part { right: 3%; bottom: 4%; width: 42%; }
  .installation-machine__installed-part { left: 42.5%; top: 26%; width: 15%; }
  .installation-machine__fit-points { left: 43%; width: 14%; }
  .installation-machine.is-first-version,
  .installation-machine.is-second-version { min-height: 410px; }
  .installation-machine.is-first-version .installation-machine__body {
    left: -10%;
    top: 16%;
    width: 98%;
    height: 76%;
  }
  .installation-machine.is-first-version .installation-machine__opening,
  .installation-machine.is-first-version .installation-machine__lid {
    left: 17%;
    width: 66%;
  }
  .installation-machine.is-first-version .installation-machine__seat {
    left: 43%;
    top: 19%;
    width: 22%;
    height: 32%;
  }
  .installation-machine.is-first-version .installation-machine__drag-part {
    right: 3%;
    top: auto;
    bottom: 5%;
    width: 32%;
    height: 27%;
  }
  .installation-machine.is-first-version .installation-machine__drag-part img {
    height: 75%;
  }
  .installation-machine.is-first-version .installation-machine__installed-part {
    left: 47%;
    top: 19%;
    width: 14%;
    height: 32%;
  }
  .installation-machine.is-first-version .installation-machine__fit-points,
  .installation-machine.is-first-version .installation-machine__contact-flash {
    left: 50.1%;
    top: 45.8%;
    width: 7.8%;
  }
  .installation-machine__instruction {
    left: 4%;
    bottom: 5%;
    max-width: 53%;
    padding: 7px 8px;
    font-size: 10px;
  }
  .installation-machine__hint-path path.is-desktop { display: none; }
  .installation-machine__hint-path path.is-mobile { display: block; }
  .installation-scene.is-near-target .installation-machine {
    transform: scale(1.06);
    transform-origin: 55% 37%;
  }
  .installation-scene.is-first-version .installation-scene__heading h1 { max-width: none; }
  .installation-machine__snap-feedback {
    left: auto;
    right: 5%;
    top: 41%;
    padding: 6px 8px;
    font-size: 9px;
  }
  .installation-machine__field-action {
    left: 4%;
    bottom: 4%;
    width: 92%;
    padding: 12px;
  }
  .installation-machine.is-first-version .installation-machine__field-action { display: none; }
  .installation-machine__field-note { margin-bottom: 10px; font-size: 12px; }
  .installation-machine__field-action .btn { min-height: 48px; }

  .installation-scene__mobile-install-action {
    position: fixed;
    z-index: 95;
    right: 0;
    bottom: 0;
    left: 0;
    display: block;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, rgb(11 12 14 / 0%), rgb(11 12 14 / 92%) 20%, #0b0c0e 42%);
    pointer-events: none;
  }

  .installation-scene__mobile-install-action .btn {
    display: block;
    width: min(100%, 520px);
    min-height: 54px;
    margin-inline: auto;
    box-shadow: 0 12px 30px rgb(0 0 0 / 48%), 0 0 0 4px rgb(65 60 255 / 12%);
    pointer-events: auto;
  }
  .installation-panel__controls {
    grid-template-columns: 1fr;
  }

  .installation-panel__controls .btn {
    min-height: 52px;
  }

  .installation-scene.has-test-failure {
    gap: 9px;
  }

  .installation-scene.has-test-failure .installation-scene__heading h1 {
    font-size: clamp(28px, 8.2vw, 34px);
  }

  .installation-scene.has-test-failure .installation-scene__heading p {
    margin-top: 7px;
    font-size: 13px;
    line-height: 1.32;
  }

  .installation-scene.has-test-failure .installation-scene__machine-card {
    border-radius: 16px;
  }

  .installation-scene.has-test-failure .installation-scene__topline {
    padding: 8px 10px;
    font-size: 7px;
  }

  .installation-scene.has-test-failure .installation-machine {
    min-height: 270px;
  }

  .installation-scene.has-test-failure .installation-machine__failure-marker {
    left: 55%;
    top: 28%;
    gap: 5px;
    padding: 5px 7px;
    font-size: 7px;
  }

  .installation-scene.has-test-failure .installation-machine__failure-marker::before {
    width: 24px;
  }

  .installation-scene.has-test-failure .installation-panel__status.is-failure {
    min-height: 62px;
    padding: 10px;
  }

  .installation-scene.has-test-failure .installation-panel__status.is-failure strong {
    font-size: 13px;
  }

  .installation-scene.has-test-failure .installation-panel__status.is-failure p {
    margin-top: 3px;
    font-size: 12px;
  }

  .installation-scene.has-test-failure .installation-panel__controls {
    padding: 0 10px 10px;
  }

  .task1-diagnosis-interactive,
  .task1-correction-interactive { gap: 14px; }
  .installation-diagnosis__part { height: 210px; }
  .installation-diagnosis__load-label {
    right: 5%;
    top: 10%;
    max-width: 135px;
    border-radius: 10px;
    white-space: normal;
    line-height: 1.2;
  }
  .installation-comparison__item > div { height: 130px; }
  .installation-comparison__item small { min-height: 55px; }
  .installation-hypothesis__model { height: 142px; }
  .installation-hypothesis__item small { min-height: 52px; }
}

@media (prefers-reduced-motion: reduce) {
  .installation-machine__seat-outline,
  .installation-machine__installed-part,
  .installation-machine.is-testing .installation-machine__lid,
  .installation-machine.is-testing .installation-machine__installed-part,
  .installation-machine.will-crack .installation-machine__crack,
  .installation-comparison.is-reinforced .installation-comparison__rib,
  .installation-hypothesis__geometry path,
  .installation-machine__drag-part,
  .installation-machine__drag-part::before,
  .installation-machine.is-first-version .installation-machine__drag-part img,
  .installation-machine__hint-path,
  .installation-machine__contact-flash i,
  .installation-scene.has-test-failure .installation-machine {
    animation: none;
  }

  .installation-machine[data-install-state="idle"] .installation-machine__hint-path {
    opacity: .72;
  }
}

.installation-scene.is-reduced-motion .installation-machine__seat-outline,
.installation-scene.is-reduced-motion .installation-machine__installed-part,
.installation-scene.is-reduced-motion .installation-machine.is-testing .installation-machine__lid,
.installation-scene.is-reduced-motion .installation-machine.is-testing .installation-machine__installed-part,
.installation-scene.is-reduced-motion .installation-machine.will-crack .installation-machine__crack,
.installation-scene.is-reduced-motion .installation-comparison.is-reinforced .installation-comparison__rib,
.installation-scene.is-reduced-motion .installation-machine__drag-part::before,
.installation-scene.is-reduced-motion .installation-machine.is-first-version .installation-machine__drag-part img,
.installation-scene.is-reduced-motion .installation-machine__hint-path,
.installation-scene.is-reduced-motion .installation-machine__contact-flash i {
  animation: none;
}

.installation-scene.is-reduced-motion .installation-machine[data-install-state="idle"] .installation-machine__hint-path {
  opacity: .72;
}

@media (max-width: 768px) {
  .task1-diagnosis-interactive {
    grid-template-columns: 1fr;
  }

  .installation-hypothesis {
    grid-template-columns: minmax(0, 1fr) 26px minmax(0, 1fr);
    padding: 8px;
  }

  .installation-hypothesis__model {
    height: 132px;
  }

  .installation-hypothesis__item > span {
    align-items: flex-start;
    min-height: 34px;
    font-size: 8px;
    line-height: 1.15;
  }

  .installation-hypothesis__item small {
    min-height: 0;
    font-size: 9px;
  }

  .installation-hypothesis__arrow i {
    font-size: 19px;
  }
}

@media (max-width: 360px) {
  .installation-hypothesis__model {
    height: 112px;
  }

  .installation-hypothesis__item > span {
    min-height: 31px;
  }

  .installation-hypothesis__item small {
    font-size: 8px;
  }

  .installation-hypothesis__change-label {
    right: 4px;
    bottom: 4px;
    padding: 4px 5px;
    font-size: 7px;
  }
}

/* First-version load test continuation */
.installation-machine.is-first-version.is-load-testing {
  transform: scale(1.08);
  transform-origin: 53% 29%;
  transition: transform 600ms cubic-bezier(.22, .76, .3, 1);
}

.installation-machine.is-first-version.is-load-testing .installation-machine__seat-outline,
.installation-machine.is-first-version.is-load-testing .installation-machine__seat-ghost,
.installation-machine.is-first-version.is-load-testing .installation-machine__fit-points,
.installation-machine.is-first-version.is-load-testing .installation-machine__contact-flash,
.installation-machine.is-first-version.is-load-testing .installation-machine__snap-feedback {
  display: none;
}

.installation-machine__cycle {
  position: absolute;
  z-index: 36;
  left: 50%;
  top: 62px;
  display: none;
  border: 1px solid rgb(255 255 255 / 22%);
  border-radius: 999px;
  background: rgb(15 17 19 / 88%);
  padding: 7px 11px;
  color: #fff;
  box-shadow: 0 8px 24px rgb(0 0 0 / 32%);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .03em;
  transform: translateX(-50%);
  white-space: nowrap;
}

.installation-machine__testing-label {
  position: absolute;
  z-index: 37;
  left: 50%;
  top: 18px;
  display: none;
  align-items: center;
  gap: 9px;
  border: 1px solid rgb(255 255 255 / 24%);
  border-radius: 999px;
  background: linear-gradient(135deg, rgb(65 60 255 / 96%), rgb(85 80 255 / 92%));
  padding: 9px 14px;
  color: #fff;
  box-shadow: 0 10px 28px rgb(0 0 0 / 34%), 0 0 26px rgb(65 60 255 / 32%);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .025em;
  transform: translateX(-50%);
  white-space: nowrap;
}

.installation-machine__testing-label > span {
  width: 9px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #cdff7a;
  box-shadow: 0 0 0 5px rgb(205 255 122 / 14%), 0 0 14px rgb(205 255 122 / 65%);
  animation: installation-testing-pulse 900ms ease-in-out infinite;
}

.installation-machine.is-load-testing .installation-machine__testing-label {
  display: flex;
}

.installation-machine.is-first-version.is-load-testing .installation-machine__cycle {
  display: block;
}

.installation-machine.is-first-version.is-load-testing .installation-machine__force {
  left: 52%;
  top: 11%;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__force {
  opacity: .45;
  color: #f4cb78;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__force {
  color: #ffad45;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__force {
  color: #ff6f52;
}

.installation-machine.is-first-version .installation-machine__latch-static,
.installation-machine.is-first-version .installation-machine__latch-flex {
  filter: drop-shadow(0 11px 8px rgb(0 0 0 / 48%));
}

.installation-machine.is-first-version .installation-machine__latch-static {
  clip-path: inset(54% 0 0);
}

.installation-machine.is-first-version .installation-machine__latch-flex {
  z-index: 2;
  clip-path: inset(0 0 43%);
  transform-origin: 50% 70%;
}

.installation-machine.is-first-version.is-load-testing .installation-machine__installed-part {
  animation: none;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__latch-flex {
  animation: installation-latch-flex-cycle-1 2300ms ease-in-out both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__latch-flex {
  animation: installation-latch-flex-cycle-2 2300ms ease-in-out both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__latch-flex {
  animation: installation-latch-flex-cycle-3 1450ms ease-in-out both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__lid {
  animation: installation-lid-load-cycle-1 2300ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__lid {
  animation: installation-lid-load-cycle-2 2300ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__lid {
  animation: installation-lid-load-cycle-3 1450ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__installed-part::after,
.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__installed-part::after {
  position: absolute;
  z-index: 6;
  left: 22%;
  top: 30%;
  width: 58%;
  height: 29%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgb(255 177 62 / 54%), rgb(255 139 43 / 15%) 43%, transparent 72%);
  content: "";
  filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  animation: installation-load-glow 2300ms ease both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__installed-part::after {
  background: radial-gradient(ellipse, rgb(255 93 63 / 65%), rgb(255 139 43 / 18%) 44%, transparent 72%);
  animation-duration: 1450ms;
}

.installation-machine.is-first-version .installation-machine__crack {
  z-index: 8;
  left: 24%;
  top: 39%;
  width: 55%;
  height: 8px;
  border-radius: 3px;
  background: linear-gradient(90deg, #8c100a, #ff3024 24%, #ff6b42 51%, #e51e16 73%, #6d0b08);
  clip-path: polygon(0 22%, 20% 38%, 32% 3%, 49% 54%, 64% 18%, 79% 64%, 100% 43%, 100% 100%, 79% 87%, 63% 58%, 48% 94%, 31% 44%, 18% 78%, 0 57%);
  filter: drop-shadow(0 0 2px #ffe0d7) drop-shadow(0 0 6px #ff3d2e) drop-shadow(0 0 13px rgb(255 58 43 / 82%));
  opacity: 0;
  transform: rotate(7deg) scaleX(.12);
  transform-origin: 0 50%;
  transition: opacity 80ms linear, transform 140ms cubic-bezier(.2, .7, .2, 1);
}

.installation-machine.is-first-version .installation-machine__crack::before {
  position: absolute;
  z-index: -1;
  left: -18%;
  top: -18px;
  width: 136%;
  height: 42px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgb(255 72 48 / 52%), rgb(255 126 55 / 20%) 42%, transparent 72%);
  content: "";
  opacity: 0;
  pointer-events: none;
}

.installation-machine.is-first-version.has-test-crack .installation-machine__crack,
.installation-machine.is-first-version.is-cracked .installation-machine__crack {
  opacity: 1;
  transform: rotate(7deg) scaleX(1);
}

.installation-machine.is-first-version.has-test-crack .installation-machine__crack::before {
  animation: installation-crack-local-flash 520ms ease-out both;
}

.installation-machine.is-first-version.is-cracked .installation-machine__installed-part {
  filter: drop-shadow(0 0 8px rgb(255 65 48 / 52%)) drop-shadow(0 13px 9px rgb(0 0 0 / 44%));
}

.installation-machine.is-first-version.is-cracked .installation-machine__crack::before {
  opacity: .8;
  animation: installation-crack-failure-pulse 1400ms ease-in-out infinite;
}

.installation-machine.is-first-version.is-cracked .installation-machine__installed-part::after {
  position: absolute;
  z-index: 6;
  left: 13%;
  top: 24%;
  width: 74%;
  height: 43%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgb(255 62 45 / 54%), rgb(255 49 35 / 20%) 43%, transparent 72%);
  content: "";
  filter: blur(2px);
  opacity: .85;
  pointer-events: none;
  animation: installation-crack-failure-pulse 1400ms ease-in-out infinite;
}

.installation-machine.is-first-version.is-cracked .installation-machine__installed-part::before {
  display: none;
}

.installation-machine.is-first-version.is-cracked .installation-machine__seat-outline {
  border-color: transparent;
  box-shadow: none;
}

.installation-scene.is-first-version.has-test-failure .installation-scene__heading > div > span {
  color: #ff7669;
}

.installation-scene.is-first-version.has-test-failure .installation-scene__topline strong {
  border: 1px solid rgb(255 105 90 / 34%);
  border-radius: 999px;
  background: rgb(255 69 55 / 12%);
  padding: 5px 9px;
  color: #ff9388;
}

.installation-scene.is-first-version.has-test-failure .installation-scene__machine-card {
  border-color: rgb(255 86 70 / 62%);
  box-shadow: inset 0 0 0 1px rgb(255 80 65 / 12%), 0 0 34px rgb(255 49 35 / 16%), 0 28px 70px rgb(0 0 0 / 38%);
}

.installation-scene.is-first-version.has-test-failure .installation-machine {
  animation: none;
}

.installation-machine__result-card {
  position: absolute;
  z-index: 38;
  left: 4%;
  bottom: 5%;
  width: min(430px, 48%);
  overflow: hidden;
  border: 1px solid rgb(255 91 75 / 72%);
  border-radius: 18px;
  background: linear-gradient(135deg, rgb(67 20 18 / 97%), rgb(28 20 21 / 97%) 58%, rgb(20 22 24 / 97%));
  padding: 16px;
  color: #fff;
  box-shadow: 0 0 0 4px rgb(255 76 61 / 9%), 0 0 32px rgb(255 55 39 / 20%), 0 18px 42px rgb(0 0 0 / 46%);
  animation: installation-result-reveal 260ms ease-out both;
}

.installation-machine__result-card::before {
  position: absolute;
  top: 0;
  right: 16px;
  left: 16px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, transparent, #ff4939 18%, #ff8b6f 52%, #ff4939 82%, transparent);
  content: "";
  box-shadow: 0 0 12px rgb(255 73 57 / 72%);
}

.installation-machine__result-card strong {
  display: block;
  font-size: 20px;
  line-height: 1.08;
}

.installation-machine__result-card p {
  margin: 7px 0 13px;
  color: #ffc2ba;
  font-size: 13px;
  line-height: 1.35;
}

.installation-machine__result-card .btn {
  width: 100%;
  min-height: 48px;
}

@keyframes installation-lid-load-cycle-1 {
  0% { transform: rotateX(-54deg) translateY(-12px); }
  34%, 48% { transform: rotateX(-7deg) translateY(6px); }
  81%, 100% { transform: rotateX(-54deg) translateY(-12px); }
}

@keyframes installation-lid-load-cycle-2 {
  0% { transform: rotateX(-54deg) translateY(-12px); }
  34%, 48% { transform: rotateX(-6deg) translateY(7px); }
  81%, 100% { transform: rotateX(-54deg) translateY(-12px); }
}

@keyframes installation-lid-load-cycle-3 {
  0% { transform: rotateX(-54deg) translateY(-12px); }
  52% { transform: rotateX(-5deg) translateY(8px); }
  64%, 100% { transform: rotateX(-10deg) translateY(4px); }
}

@keyframes installation-latch-flex-cycle-1 {
  0%, 81%, 100% { transform: translate(-50%, -50%); }
  34%, 48% { transform: translate(-50%, -50%) rotate(1.3deg) skewX(-1deg); }
}

@keyframes installation-latch-flex-cycle-2 {
  0%, 81%, 100% { transform: translate(-50%, -50%); filter: drop-shadow(0 11px 8px rgb(0 0 0 / 48%)); }
  34%, 48% { transform: translate(-50%, -50%) rotate(2.2deg) skewX(-1.8deg); filter: drop-shadow(0 0 5px rgb(255 174 61 / 52%)); }
}

@keyframes installation-latch-flex-cycle-3 {
  0% { transform: translate(-50%, -50%); }
  52% { transform: translate(-50%, -50%) rotate(3.2deg) skewX(-2.4deg); }
  64%, 100% { transform: translate(-50%, -50%) rotate(1.8deg) skewX(-1.3deg); }
}

@keyframes installation-load-glow {
  0%, 22%, 72%, 100% { opacity: 0; }
  34%, 52% { opacity: 1; }
}

@keyframes installation-crack-local-flash {
  0% { opacity: 0; transform: scale(.65); }
  24% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.12); }
}

@keyframes installation-testing-pulse {
  0%, 100% { opacity: .72; transform: scale(.82); }
  50% { opacity: 1; transform: scale(1); }
}

@keyframes installation-crack-failure-pulse {
  0%, 100% { opacity: .5; transform: scale(.94); }
  50% { opacity: .92; transform: scale(1.06); }
}

@keyframes installation-result-reveal {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes installation-lid-load-reduced {
  0% { transform: rotateX(-42deg) translateY(-8px); }
  42%, 58% { transform: rotateX(-12deg) translateY(3px); }
  100% { transform: rotateX(-42deg) translateY(-8px); }
}

@media (prefers-reduced-motion: reduce) {
  .installation-machine.is-first-version.is-load-testing { transition-duration: 120ms; }
  .installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__lid,
  .installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__lid {
    animation: installation-lid-load-reduced 620ms linear both;
  }
  .installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__lid {
    animation: installation-lid-load-cycle-3 470ms linear both;
  }
  .installation-machine.is-first-version.is-load-testing .installation-machine__latch-flex {
    animation-duration: 620ms;
  }
}

.installation-scene.is-reduced-motion .installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__lid,
.installation-scene.is-reduced-motion .installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__lid {
  animation: installation-lid-load-reduced 620ms linear both;
}

.installation-scene.is-reduced-motion .installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__lid {
  animation: installation-lid-load-cycle-3 470ms linear both;
}

@media (max-width: 767px) {
  .installation-machine.is-first-version.is-load-testing {
    min-height: 560px;
    transform: scale(1.09);
    transform-origin: 52% 25%;
  }

  .installation-machine.is-first-version.is-load-testing .installation-machine__body {
    top: 15%;
  }

  .installation-machine.is-first-version.is-load-testing .installation-machine__opening,
  .installation-machine.is-first-version.is-load-testing .installation-machine__lid {
    top: 4%;
  }

  .installation-machine.is-first-version.is-load-testing .installation-machine__seat,
  .installation-machine.is-first-version.is-load-testing .installation-machine__installed-part {
    top: 17%;
  }

  .installation-machine__cycle {
    top: 50px;
    padding: 6px 9px;
    font-size: 10px;
  }

  .installation-machine__testing-label {
    top: 10px;
    gap: 7px;
    padding: 7px 11px;
    font-size: 10px;
  }

  .installation-machine__testing-label > span { width: 7px; }

  .installation-machine.is-first-version .installation-machine__crack {
    height: 7px;
  }

  .installation-machine__result-card {
    left: 4%;
    bottom: 4%;
    width: 92%;
    padding: 13px;
  }

  .installation-scene.has-test-failure .installation-machine__result-card {
    bottom: 30%;
  }

  .installation-machine__result-card strong { font-size: 18px; }
  .installation-machine__result-card p { margin-bottom: 11px; font-size: 12px; }

  .installation-scene.has-test-failure .installation-machine {
    min-height: 540px;
  }
}

@media (max-width: 360px) {
  .installation-machine__result-card strong { font-size: 16px; }
  .installation-machine__result-card p { font-size: 11px; }
  .installation-machine__result-card .btn { min-height: 44px; }
}

/* Task 1 diagnosis follows the large-scene requirements layout. */
.task1-diagnosis-interactive {
  grid-template-columns: minmax(520px, 1.08fr) minmax(450px, .92fr);
  gap: 38px;
  align-items: start;
}

.task1-diagnosis__scene,
.task1-diagnosis__copy {
  min-width: 0;
}

.task1-diagnosis__copy h1 {
  max-width: 12ch;
  margin-top: 10px;
  font-size: clamp(40px, 3.7vw, 52px);
  line-height: .98;
}

.task1-diagnosis__copy .task1-diagnosis-instruction {
  margin: 22px 0 0;
  font-size: 16px;
}

.task1-diagnosis__copy .selector-grid {
  gap: 8px;
  margin-top: 12px;
}

.task1-diagnosis__copy .selector-card {
  min-height: 78px;
  padding: 11px 12px;
}

.task1-diagnosis__copy .selector-copy strong {
  font-size: 14px;
  line-height: 1.25;
}

.task1-diagnosis__scene .installation-diagnosis__machine {
  padding: 16px;
}

.task1-diagnosis__scene .installation-diagnosis__part {
  height: clamp(500px, 56vh, 680px);
}

.task1-diagnosis__scene .installation-diagnosis__part img {
  width: 90%;
}

.task1-diagnosis__scene .installation-hypothesis__model {
  height: clamp(260px, 34vh, 390px);
}

.task1-diagnosis__scene .installation-hypothesis__item small {
  min-height: 66px;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .task1-diagnosis-interactive {
    grid-template-columns: minmax(380px, .9fr) minmax(460px, 1.1fr);
    gap: 26px;
  }

  .task1-diagnosis__scene .installation-diagnosis__part {
    height: clamp(430px, 52vh, 560px);
  }
}

@media (max-width: 900px) {
  .task1-diagnosis-interactive {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .task1-diagnosis__scene {
    order: 2;
    width: 100%;
  }

  .task1-diagnosis__copy {
    display: contents;
  }

  .task1-diagnosis__copy > .eyebrow { order: 0; }
  .task1-diagnosis__copy > h1 { order: 1; }
  .task1-diagnosis__copy > .task1-diagnosis-instruction { order: 3; }
  .task1-diagnosis__copy > .selector-grid { order: 4; }
  .task1-diagnosis__copy > .task1-diagnosis-response { order: 5; }

  .task1-diagnosis__copy h1 {
    max-width: 14ch;
    font-size: clamp(34px, 7.2vw, 48px);
  }

  .task1-diagnosis__copy .task1-diagnosis-instruction {
    margin-top: 6px;
  }

  .task1-diagnosis__scene .installation-diagnosis__part {
    height: clamp(360px, 62vw, 500px);
  }
}

@media (max-width: 768px) {
  .task1-diagnosis__copy h1 {
    max-width: none;
    margin-top: 6px;
    font-size: clamp(30px, 8.8vw, 37px);
  }

  .task1-diagnosis__scene .installation-diagnosis__part {
    height: clamp(300px, 86vw, 500px);
  }

  .task1-diagnosis__copy .selector-grid,
  .task1-diagnosis__copy .selector-grid.two-col {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .task1-diagnosis__copy .selector-card {
    min-height: 62px;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 8px;
    padding: 9px;
  }

  .task1-diagnosis__copy .selection-control {
    width: 22px;
    height: 22px;
  }

  .task1-diagnosis__copy .selector-copy strong {
    font-size: 12px;
  }
}

@media (max-width: 360px) {
  .task1-diagnosis__copy h1 { font-size: 29px; }
  .task1-diagnosis__scene .installation-diagnosis__part { height: 292px; }
  .task1-diagnosis__copy .selector-copy strong { font-size: 11px; }
}

/* Photorealistic continuous machine scene for both latch versions. */
.installation-machine.is-first-version,
.installation-machine.is-second-version {
  background: #151718;
}

.installation-machine__photo {
  position: absolute;
  z-index: 1;
  inset: 0;
  overflow: hidden;
  background-image: url("assets/task1/install-v1/coffee-machine-side.png");
  background-position: left center;
  background-repeat: no-repeat;
  background-size: auto 100%;
  pointer-events: none;
}

.installation-machine__photo::after {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  bottom: 0;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgb(28 29 30 / 96%) 28%, #1c1d1e 52%);
  content: "";
}

.installation-machine.is-first-version > .installation-machine__body,
.installation-machine.is-first-version > .installation-machine__opening,
.installation-machine.is-first-version > .installation-machine__lid,
.installation-machine.is-second-version > .installation-machine__body,
.installation-machine.is-second-version > .installation-machine__opening,
.installation-machine.is-second-version > .installation-machine__lid {
  display: none;
}

.installation-machine.is-first-version .installation-machine__seat,
.installation-machine.is-second-version .installation-machine__seat {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.installation-machine.is-first-version .installation-machine__force {
  display: none;
}

.installation-machine__photo-lid-mask,
.installation-machine__photo-lid,
.installation-machine__photo-contact {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.installation-machine__photo-lid-mask {
  z-index: 3;
  left: 0;
  top: 0;
  width: 80%;
  height: 27%;
  background: linear-gradient(168deg, #111314, #26292b 62%, #0b0c0d);
  clip-path: polygon(0 0, 100% 0, 98% 45%, 84% 72%, 57% 79%, 0 68%);
}

.installation-machine__photo-lid {
  z-index: 4;
  left: 0;
  top: 0;
  width: 80%;
  height: 27%;
  background-image: url("assets/task1/install-v1/coffee-machine-side.png");
  background-position: left top;
  background-repeat: no-repeat;
  background-size: auto 370.37%;
  clip-path: polygon(0 0, 100% 0, 98% 45%, 84% 72%, 57% 79%, 0 68%);
  filter: drop-shadow(0 12px 14px rgb(0 0 0 / 38%));
  transform-origin: 95% 68%;
}

.installation-machine__photo-contact {
  z-index: 5;
  left: 49%;
  top: 17%;
  width: 9%;
  height: 3.5%;
  border-radius: 999px;
  background: linear-gradient(90deg, #151719, #6a513e 48%, #1b1c1e);
  box-shadow: 0 3px 6px rgb(0 0 0 / 55%);
  transform-origin: 86% 50%;
}

.installation-machine.is-first-version.is-load-testing .installation-machine__photo-lid-mask,
.installation-machine.is-first-version.is-load-testing .installation-machine__photo-lid,
.installation-machine.is-first-version.is-load-testing .installation-machine__photo-contact,
.installation-machine.is-second-version.is-load-testing .installation-machine__photo-lid-mask,
.installation-machine.is-second-version.is-load-testing .installation-machine__photo-lid,
.installation-machine.is-second-version.is-load-testing .installation-machine__photo-contact,
.installation-machine.is-first-version.is-test-result .installation-machine__photo-lid-mask,
.installation-machine.is-first-version.is-test-result .installation-machine__photo-lid,
.installation-machine.is-first-version.is-test-result .installation-machine__photo-contact {
  opacity: 1;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__photo-lid,
.installation-machine.is-second-version.is-load-testing.is-cycle-1 .installation-machine__photo-lid {
  animation: installation-photo-lid-cycle-1 2300ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__photo-lid,
.installation-machine.is-second-version.is-load-testing.is-cycle-2 .installation-machine__photo-lid {
  animation: installation-photo-lid-cycle-2 2300ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__photo-lid,
.installation-machine.is-second-version.is-load-testing.is-cycle-3 .installation-machine__photo-lid {
  animation: installation-photo-lid-cycle-3 1450ms cubic-bezier(.46, 0, .2, 1) both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-1 .installation-machine__photo-contact,
.installation-machine.is-first-version.is-load-testing.is-cycle-2 .installation-machine__photo-contact,
.installation-machine.is-second-version.is-load-testing.is-cycle-1 .installation-machine__photo-contact,
.installation-machine.is-second-version.is-load-testing.is-cycle-2 .installation-machine__photo-contact {
  animation: installation-photo-contact-cycle 2300ms ease-in-out both;
}

.installation-machine.is-first-version.is-load-testing.is-cycle-3 .installation-machine__photo-contact,
.installation-machine.is-second-version.is-load-testing.is-cycle-3 .installation-machine__photo-contact {
  animation: installation-photo-contact-crack 1450ms ease-in-out both;
}

.installation-machine.is-first-version.is-test-result .installation-machine__photo-lid {
  transform: rotate(-5deg) translateY(4px);
}

.installation-machine.is-first-version.is-test-result .installation-machine__photo-contact {
  transform: translateY(7px) rotate(-3deg);
}

@keyframes installation-photo-lid-cycle-1 {
  0% { transform: rotate(0deg) translateY(0); }
  34%, 48% { transform: rotate(-10deg) translateY(7px); }
  81%, 100% { transform: rotate(0deg) translateY(0); }
}

@keyframes installation-photo-lid-cycle-2 {
  0% { transform: rotate(0deg) translateY(0); }
  34%, 48% { transform: rotate(-11deg) translateY(8px); }
  81%, 100% { transform: rotate(0deg) translateY(0); }
}

@keyframes installation-photo-lid-cycle-3 {
  0% { transform: rotate(0deg) translateY(0); }
  52% { transform: rotate(-12deg) translateY(9px); }
  64%, 100% { transform: rotate(-5deg) translateY(4px); }
}

@keyframes installation-photo-contact-cycle {
  0%, 81%, 100% { transform: translateY(0) rotate(0deg); }
  34%, 48% { transform: translateY(12px) rotate(-5deg); }
}

@keyframes installation-photo-contact-crack {
  0% { transform: translateY(0) rotate(0deg); }
  52% { transform: translateY(14px) rotate(-6deg); }
  64%, 100% { transform: translateY(7px) rotate(-3deg); }
}

@media (prefers-reduced-motion: reduce) {
  .installation-machine.is-first-version.is-load-testing .installation-machine__photo-lid,
  .installation-machine.is-first-version.is-load-testing .installation-machine__photo-contact,
  .installation-machine.is-second-version.is-load-testing .installation-machine__photo-lid,
  .installation-machine.is-second-version.is-load-testing .installation-machine__photo-contact {
    animation-duration: 620ms;
  }
}

.installation-scene.is-reduced-motion .installation-machine.is-first-version.is-load-testing .installation-machine__photo-lid,
.installation-scene.is-reduced-motion .installation-machine.is-first-version.is-load-testing .installation-machine__photo-contact,
.installation-scene.is-reduced-motion .installation-machine.is-second-version.is-load-testing .installation-machine__photo-lid,
.installation-scene.is-reduced-motion .installation-machine.is-second-version.is-load-testing .installation-machine__photo-contact {
  animation-duration: 620ms;
}

@media (max-width: 767px) {
  .installation-machine__photo {
    background-position: 52% center;
  }

  .installation-machine__photo::after {
    display: block;
    width: 31%;
    background: linear-gradient(90deg, transparent, rgb(28 29 30 / 96%) 32%, #1c1d1e 58%);
  }

  .installation-machine__photo-lid-mask,
  .installation-machine__photo-lid {
    width: 100%;
    transform-origin: 84% 68%;
  }

  .installation-machine__photo-lid {
    background-position: 52% top;
  }

  .installation-machine__photo-contact {
    left: 45%;
    top: 16%;
    width: 13%;
  }

  .installation-machine.is-first-version .installation-machine__seat,
  .installation-machine.is-second-version .installation-machine__seat {
    left: 38%;
  }

  .installation-machine.is-first-version .installation-machine__installed-part,
  .installation-machine.is-second-version .installation-machine__installed-part {
    left: 42%;
  }

  .installation-machine.is-first-version .installation-machine__fit-points,
  .installation-machine.is-first-version .installation-machine__contact-flash,
  .installation-machine.is-second-version .installation-machine__fit-points,
  .installation-machine.is-second-version .installation-machine__contact-flash {
    left: 45.1%;
  }
}

/* One-object hypothesis workspace. */
.task1-diagnosis-interactive {
  display: grid;
  grid-template-columns: minmax(500px, 1.08fr) minmax(430px, .92fr);
  gap: 32px;
  align-items: start;
}

.task1-diagnosis__scene,
.task1-diagnosis__copy {
  min-width: 0;
}

.task1-hypothesis-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 26px;
  background: #17191a;
  color: #fff;
  box-shadow: 0 24px 50px rgb(0 0 0 / 18%);
}

.task1-hypothesis-stage__topline {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgb(255 255 255 / 10%);
  padding: 14px 18px;
  color: #c8cacc;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: .02em;
}

.task1-hypothesis-stage__topline strong {
  flex: 0 0 auto;
  color: #fff;
  font-size: 11px;
  letter-spacing: .06em;
}

.task1-hypothesis-stage__visual {
  position: relative;
  height: clamp(440px, 56vh, 620px);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgb(79 82 85 / 44%), transparent 57%),
    #111314;
  isolation: isolate;
}

.task1-hypothesis-stage__image {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 220ms ease;
}

.task1-hypothesis-stage__image.is-active {
  z-index: 2;
  opacity: 1;
}

.task1-hypothesis-stage__crack-pulse,
.task1-hypothesis-stage__success-pulse {
  position: absolute;
  z-index: 3;
  border-radius: 50%;
  pointer-events: none;
}

.task1-hypothesis-stage__crack-pulse {
  left: 55%;
  top: 20%;
  width: 27%;
  aspect-ratio: 1.7;
  background: radial-gradient(ellipse, rgb(255 91 63 / 36%), rgb(255 91 63 / 7%) 52%, transparent 72%);
  opacity: 0;
}

.task1-hypothesis-stage.is-evidence .task1-hypothesis-stage__crack-pulse {
  animation: task1-crack-focus 780ms ease-out 2 forwards;
}

.task1-hypothesis-stage__success-pulse {
  left: 40%;
  top: 19%;
  width: 38%;
  height: 58%;
  border: 2px solid rgb(205 255 122 / 68%);
  box-shadow: 0 0 28px rgb(205 255 122 / 34%);
  opacity: 0;
  transform: scale(.96);
  animation: task1-confirmed-change 680ms ease-out 1 forwards;
}

.task1-hypothesis-stage > p {
  min-height: 54px;
  margin: 0;
  border-top: 1px solid rgb(255 255 255 / 10%);
  padding: 15px 18px;
  color: #e5e6e6;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
}

@keyframes task1-crack-focus {
  0%, 100% { opacity: 0; transform: scale(.9); }
  45% { opacity: 1; transform: scale(1.08); }
}

@keyframes task1-confirmed-change {
  0% { opacity: 0; transform: scale(.96); }
  55% { opacity: 1; transform: scale(1.02); }
  100% { opacity: .55; transform: scale(1); }
}

.task1-diagnosis__copy h1 {
  max-width: 11ch;
  margin-top: 10px;
  font-size: clamp(44px, 4.2vw, 60px);
  line-height: .96;
}

.task1-diagnosis-lead {
  max-width: 32ch;
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.35;
}

.task1-diagnosis__copy .task1-diagnosis-instruction {
  margin: 22px 0 0;
  font-size: 15px;
}

.task1-diagnosis__copy .selector-grid,
.task1-diagnosis__copy .selector-grid.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 12px;
}

.task1-diagnosis__copy .selector-card {
  min-height: 68px;
  padding: 11px 12px;
}

.task1-diagnosis__copy .selector-copy strong {
  font-size: 14px;
  line-height: 1.2;
}

.task1-diagnosis__copy .selector-card.is-answer-neutral {
  border-color: rgb(65 60 255 / 42%);
  background: #efeff6;
}

.task1-diagnosis__copy .selector-card.is-answer-success {
  border-color: #84ad31;
  background: #eff7df;
}

.task1-diagnosis__copy .task1-diagnosis-response {
  margin-top: 12px;
}

.task1-diagnosis__copy .task1-diagnosis-response .curator-response__copy {
  min-width: 0;
}

.task1-diagnosis__copy .task1-diagnosis-response .task1-curator-response__heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: start;
  gap: 8px;
}

.task1-diagnosis__copy .task1-diagnosis-response .task1-curator-response__heading h3 {
  max-width: 32ch;
  line-height: 1.15;
}

.task1-diagnosis__copy .task1-diagnosis-response .curator-response__copy p {
  max-width: 48ch;
  margin-top: 7px;
}

@media (max-width: 1100px) {
  .task1-diagnosis-interactive {
    grid-template-columns: minmax(400px, .92fr) minmax(430px, 1.08fr);
    gap: 24px;
  }

  .task1-hypothesis-stage__visual {
    height: clamp(400px, 52vh, 540px);
  }
}

@media (max-width: 900px) {
  .task1-diagnosis-interactive {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .task1-diagnosis__copy {
    display: contents;
  }

  .task1-diagnosis__copy > .eyebrow { order: 0; }
  .task1-diagnosis__copy > h1 { order: 1; }
  .task1-diagnosis__copy > .task1-diagnosis-lead { order: 2; }
  .task1-diagnosis__scene { order: 3; width: 100%; }
  .task1-diagnosis__copy > .task1-diagnosis-instruction { order: 4; }
  .task1-diagnosis__copy > .selector-grid { order: 5; }
  .task1-diagnosis__copy > .task1-diagnosis-response { order: 6; }

  .task1-diagnosis__copy h1 {
    max-width: 13ch;
    font-size: clamp(36px, 7.4vw, 48px);
  }

  .task1-diagnosis-lead {
    margin-top: 4px;
  }

  .task1-hypothesis-stage__visual {
    height: clamp(330px, 48vh, 430px);
  }
}

@media (max-width: 600px) {
  .task1-diagnosis__copy h1 {
    max-width: none;
    margin-top: 4px;
    font-size: clamp(31px, 9vw, 39px);
  }

  .task1-diagnosis-lead {
    max-width: none;
    font-size: 16px;
  }

  .task1-hypothesis-stage {
    border-radius: 20px;
  }

  .task1-hypothesis-stage__topline {
    min-height: 46px;
    padding: 10px 12px;
    font-size: 11px;
  }

  .task1-hypothesis-stage__topline strong {
    font-size: 9px;
  }

  .task1-hypothesis-stage__visual {
    height: clamp(300px, 47vh, 390px);
  }

  .task1-hypothesis-stage > p {
    min-height: 48px;
    padding: 12px;
    font-size: 12px;
  }

  .task1-diagnosis__copy .task1-diagnosis-instruction {
    margin-top: 8px;
    font-size: 14px;
  }

  .task1-diagnosis__copy .selector-grid,
  .task1-diagnosis__copy .selector-grid.two-col {
    grid-template-columns: 1fr;
    gap: 7px;
    margin-top: 0;
  }

  .task1-diagnosis__copy .selector-card {
    min-height: 58px;
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 9px;
    padding: 9px 11px;
  }

  .task1-diagnosis__copy .selection-control {
    width: 24px;
    height: 24px;
  }

  .task1-diagnosis__copy .selector-copy strong {
    font-size: 14px;
  }

}

@media (max-width: 360px) {
  .task1-diagnosis__copy h1 { font-size: 30px; }
  .task1-diagnosis-lead { font-size: 15px; }
  .task1-hypothesis-stage__visual { height: 300px; }
  .task1-diagnosis__copy .selector-copy strong { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .task1-hypothesis-stage__image {
    transition-duration: 120ms;
  }

  .task1-hypothesis-stage__crack-pulse,
  .task1-hypothesis-stage__success-pulse {
    display: none;
  }
}