:root {
  --ink: #151817;
  --ink-soft: #242927;
  --paper: #f4f5f1;
  --surface: #ffffff;
  --muted: #747a75;
  --line: #dfe2dc;
  --acid: #b7ec18;
  --acid-strong: #98d000;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-width: 320px;
  background: var(--ink);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

.configurator-shell {
  min-height: 100vh;
  background: var(--paper);
}

.topbar {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  color: #fff;
  background: var(--ink);
}

.brand {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  column-gap: 11px;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  grid-row: 1 / 3;
  width: 34px;
  height: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  transform: rotate(45deg);
}

.brand__mark i {
  display: block;
  border: 3px solid var(--acid);
}

.brand__mark i:first-child {
  border-right: 0;
}

.brand__mark i:last-child {
  border-left: 0;
}

.brand__name {
  align-self: end;
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.16em;
}

.brand__meta {
  align-self: start;
  margin-top: 4px;
  color: #969e99;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-status {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #aeb4b0;
  font-size: 13px;
}

.project-status__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 4px rgb(183 236 24 / 12%);
}

.stepper {
  min-height: 72px;
  display: flex;
  align-items: stretch;
  padding: 0 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.stepper ol {
  width: 100%;
  max-width: 1090px;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.stepper li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9a9e9b;
  font-size: 14px;
  border-bottom: 3px solid transparent;
}

.stepper li:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 18px;
  width: 24px;
  height: 1px;
  background: var(--line);
}

.stepper li.is-active {
  color: var(--ink);
  font-weight: 700;
  border-color: var(--acid-strong);
}

.stepper li.is-complete {
  color: #687068;
}

.stepper li.is-complete .stepper__number {
  color: var(--acid-strong);
}

.stepper__number {
  color: #b5bab6;
  font-size: 11px;
  letter-spacing: 0.12em;
}

.is-active .stepper__number {
  color: var(--acid-strong);
}

.workspace {
  min-height: calc(100vh - 144px);
  display: grid;
  grid-template-columns: 280px minmax(620px, 1fr) 320px;
  gap: 16px;
  padding: 16px;
}

.model-panel,
.summary-panel {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.section-kicker {
  color: #868c87;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-kicker--dark {
  color: #7f8782;
}

.model-panel h1,
.summary-panel h2,
.preview-panel h2 {
  margin: 8px 0 0;
  font-size: 25px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.model-panel p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.model-card {
  position: relative;
  width: 100%;
  margin-top: 30px;
  padding: 0;
  overflow: hidden;
  text-align: left;
  background: #f8f9f6;
  border: 2px solid var(--ink);
  border-radius: 17px;
  cursor: pointer;
  box-shadow: 5px 5px 0 var(--acid);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.model-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--acid);
}

.model-card:focus-visible,
.construction-card:focus-visible,
.back-button:focus-visible,
.next-button:focus-visible {
  outline: 3px solid var(--acid-strong);
  outline-offset: 3px;
}

.construction-card {
  position: relative;
  width: 100%;
  margin-top: 30px;
  padding: 0;
  overflow: hidden;
  text-align: left;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--acid-strong);
  border-radius: 17px;
  cursor: pointer;
  box-shadow: 5px 5px 0 rgb(183 236 24 / 45%);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.construction-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgb(183 236 24 / 55%);
}

.construction-card__selected {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 6px 9px;
  color: var(--ink);
  background: var(--acid);
  border-radius: 99px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.construction-card__brand {
  display: grid;
  gap: 2px;
  padding: 24px 16px 18px;
}

.construction-card__brand strong {
  font-size: 27px;
  font-style: italic;
  letter-spacing: -0.05em;
}

.construction-card__brand small {
  color: var(--acid-strong);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.construction-card__specs {
  display: grid;
  padding: 0 16px;
}

.construction-card__specs > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 49px;
  border-top: 1px solid var(--line);
}

.construction-card__specs small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
}

.construction-card__specs strong {
  flex: 0 0 auto;
  font-size: 12px;
}

.construction-card__specs > span:first-child strong {
  padding: 5px 7px;
  color: #fff;
  background: var(--acid-strong);
  border-radius: 5px;
}

.construction-card__footer {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding: 14px 16px;
  background: #f8f9f6;
  border-top: 1px solid var(--line);
}

.construction-card__footer > span:first-child {
  display: grid;
  gap: 3px;
}

.construction-card__footer small {
  color: var(--muted);
  font-size: 11px;
}

.construction-card__footer strong {
  font-size: 17px;
}

.model-card__selected {
  position: absolute;
  z-index: 2;
  top: 12px;
  left: 12px;
  padding: 7px 9px;
  color: var(--ink);
  background: var(--acid);
  border-radius: 99px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.model-card__image {
  height: 244px;
  display: grid;
  place-items: center;
  padding: 18px 12px 0;
}

.model-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.model-card__footer {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.model-card__footer > span:first-child {
  display: grid;
  gap: 2px;
}

.model-card__footer small,
.material-note small {
  color: var(--muted);
  font-size: 11px;
}

.model-card__footer strong {
  font-size: 20px;
}

.model-card__check {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--acid);
  border-radius: 50%;
  font-weight: 800;
}

.material-note {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 24px;
}

.material-note > span:last-child {
  display: grid;
  gap: 4px;
}

.material-note__swatch {
  width: 34px;
  height: 34px;
  border: 1px solid #d8d9d5;
  border-radius: 50%;
  background: #f4f4f2;
  box-shadow: inset 0 0 0 6px #fff;
}

.preview-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 28px 34px 18px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.preview-panel__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.preview-panel__badge {
  padding: 8px 11px;
  color: #53600f;
  background: rgb(183 236 24 / 13%);
  border: 1px solid rgb(152 208 0 / 28%);
  border-radius: 99px;
  font-size: 11px;
}

.door-pair {
  flex: 1;
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 28px minmax(220px, 1fr);
  align-items: stretch;
  gap: 10px;
  padding: 18px 0 6px;
}

.door-view {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  margin: 0;
}

.door-view__caption {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-size: 13px;
}

.door-view__caption span {
  color: #75a000;
  font-size: 10px;
  letter-spacing: 0.12em;
}

.door-render {
  position: relative;
  width: min(100%, 290px);
  aspect-ratio: 741 / 1500;
  align-self: center;
  justify-self: center;
  isolation: isolate;
  filter: drop-shadow(0 20px 22px rgb(26 31 28 / 16%));
}

.door-render::after {
  content: '';
  position: absolute;
  z-index: -1;
  left: 17%;
  right: 17%;
  bottom: -3%;
  height: 5%;
  background: rgb(18 22 20 / 18%);
  filter: blur(12px);
}

.door-render canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
}

.door-render__loader {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #9ba29d;
  font-size: 11px;
  transition: opacity 180ms ease;
}

.door-render.is-ready .door-render__loader {
  opacity: 0;
  pointer-events: none;
}

.door-render.has-error canvas {
  opacity: 0.15;
}

.door-pair__divider {
  display: flex;
  align-items: center;
  justify-content: center;
}

.door-pair__divider span {
  width: 1px;
  height: 70%;
  background: linear-gradient(transparent, var(--line), transparent);
}

.preview-panel__hint {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.summary-panel__head {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.summary-list {
  display: grid;
  gap: 0;
  margin: 12px 0 0;
}

.summary-list div {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.summary-list dt {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.summary-list dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.summary-actions {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.back-button {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 13px;
  font-weight: 700;
  cursor: pointer;
}

.next-button {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0;
  padding: 0 18px;
  color: var(--ink);
  background: var(--acid);
  border: 0;
  border-radius: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease;
}

.next-button:hover {
  background: #c4f53a;
  transform: translateY(-1px);
}

.next-button span:last-child {
  font-size: 21px;
}

.summary-panel__note {
  margin: 12px 2px 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

@media (max-width: 1220px) {
  .workspace {
    grid-template-columns: 250px minmax(560px, 1fr);
  }

  .summary-panel {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    align-items: end;
    gap: 22px;
  }

  .summary-panel__head {
    align-self: start;
    border-bottom: 0;
  }

  .summary-list {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    margin: 0;
  }

  .summary-list div {
    padding: 0 12px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .summary-actions {
    align-self: stretch;
  }

  .summary-panel__note {
    display: none;
  }
}

@media (max-width: 900px) {
  .project-status {
    display: none;
  }

  .stepper {
    overflow-x: auto;
  }

  .stepper ol {
    min-width: 720px;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .model-panel,
  .summary-panel {
    grid-column: auto;
  }

  .model-panel {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(200px, 260px);
    gap: 22px;
  }

  .model-card {
    grid-row: 1 / 3;
    grid-column: 2;
    margin-top: 0;
  }

  .material-note {
    margin-top: 0;
  }

  .summary-panel {
    grid-template-columns: 1fr;
  }

  .summary-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
  }

  .summary-list div {
    min-height: 60px;
    padding: 10px;
    border: 1px solid var(--line);
  }
}

@media (max-width: 620px) {
  .topbar,
  .stepper {
    padding-left: 18px;
    padding-right: 18px;
  }

  .workspace {
    padding: 10px;
  }

  .model-panel,
  .summary-panel,
  .preview-panel {
    padding: 22px;
    border-radius: 18px;
  }

  .model-panel {
    display: flex;
  }

  .model-card {
    margin-top: 24px;
  }

  .material-note {
    margin-top: 20px;
  }

  .preview-panel__badge {
    display: none;
  }

  .door-pair {
    min-height: 0;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding-top: 24px;
  }

  .door-pair__divider {
    display: none;
  }

  .door-render {
    width: 100%;
  }

  .preview-panel__hint {
    margin-top: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}