:root {
  --bg: #0d0f10;
  --panel: #151819;
  --panel-2: #1f2728;
  --ink: #f2f0e8;
  --muted: #aeb5ac;
  --line: #344143;
  --accent: #ff7a00;
  --accent-2: #d7c1a7;
  --gold: #ffc247;
  --cyan: #5ec8d6;
  --green: #a9c96f;
  --danger: #ff705f;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 122, 0, 0.12), transparent 24%),
    linear-gradient(215deg, rgba(94, 200, 214, 0.12), transparent 27%),
    linear-gradient(0deg, rgba(169, 201, 111, 0.06), transparent 34%),
    var(--bg);
  font-family: "Aptos", "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  height: 100dvh;
  display: grid;
  grid-template-rows: 92px minmax(0, 1fr);
  overflow: hidden;
}

.topbar {
  min-height: 92px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(20, 24, 25, 0.94), rgba(18, 28, 30, 0.9)),
    rgba(13, 15, 16, 0.86);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 292px;
}

.brand-logo {
  width: 158px;
  height: 62px;
  object-fit: contain;
  background:
    linear-gradient(135deg, rgba(255, 122, 0, 0.16), rgba(94, 200, 214, 0.08)),
    #141718;
  border: 1px solid rgba(255, 194, 71, 0.28);
  border-radius: 6px;
  padding: 6px;
  box-shadow: 0 0 30px rgba(255, 122, 0, 0.11);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: "Bahnschrift", "Aptos Display", sans-serif;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 0.98rem;
}

.brand small,
.select-wrap span,
.total-pill span,
.panel-title span,
.stage-meta span,
.price-card span {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.topbar-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
  width: 100%;
}

.base-van-control {
  display: flex;
  align-items: end;
  gap: 8px;
  min-width: 0;
}

.select-wrap {
  display: grid;
  gap: 4px;
  min-width: 0;
  overflow: hidden;
}

select,
input,
textarea {
  color: var(--ink);
  background: #101314;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: none;
}

select {
  min-width: 240px;
  max-width: 100%;
  padding: 10px 36px 10px 12px;
}

input,
textarea {
  width: 100%;
  padding: 11px 12px;
}

textarea {
  resize: vertical;
}

select:focus,
input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 122, 0, 0.14);
}

.total-pill {
  height: 46px;
  min-width: 142px;
  padding: 6px 14px;
  display: grid;
  align-content: center;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(94, 200, 214, 0.1), transparent),
    var(--panel);
  border-radius: 6px;
}

.total-pill strong {
  font-size: 1.1rem;
}

.primary-action,
.secondary-action,
.icon-button,
.component-card button,
.about-van-button,
.summary-row button {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--panel-2);
}

.primary-action {
  min-height: 46px;
  padding: 0 18px;
  color: #111;
  border-color: var(--accent);
  background: var(--accent);
  font-weight: 800;
}

.about-van-button {
  min-height: 46px;
  padding: 0 14px;
  color: var(--gold);
  border-color: rgba(255, 194, 71, 0.46);
  background:
    linear-gradient(135deg, rgba(255, 194, 71, 0.14), rgba(94, 200, 214, 0.08)),
    #111617;
  font-weight: 800;
}

.secondary-action {
  min-height: 46px;
  padding: 0 18px;
}

.secondary-action:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.configurator {
  min-height: 0;
  height: 100%;
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(520px, 1fr) minmax(280px, 360px);
  grid-template-areas: "catalog viewer build";
  overflow: hidden;
}

.app-shell.catalog-collapsed .configurator {
  grid-template-columns: 58px minmax(520px, 1fr) minmax(280px, 360px);
}

.catalog-panel,
.build-panel {
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(94, 200, 214, 0.05), transparent 32%),
    rgba(21, 24, 25, 0.92);
  min-height: 0;
  overflow-y: auto;
}

.catalog-panel {
  grid-area: catalog;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  border-right: 1px solid var(--line);
  overflow: hidden;
}

.build-panel {
  grid-area: build;
  border-left: 1px solid var(--line);
  overscroll-behavior: contain;
}

.panel-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-title strong {
  color: var(--accent);
}

.panel-title-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-toggle {
  min-height: 30px;
  padding: 0 9px;
  color: var(--muted);
  background: #101314;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.76rem;
}

.app-shell.catalog-collapsed .catalog-panel {
  padding: 12px 8px;
}

.app-shell.catalog-collapsed .catalog-panel .panel-title {
  align-items: center;
  flex-direction: column;
  margin: 0;
}

.app-shell.catalog-collapsed .catalog-panel .panel-title > span,
.app-shell.catalog-collapsed .catalog-panel .panel-title strong,
.app-shell.catalog-collapsed .catalog-panel .category-tabs,
.app-shell.catalog-collapsed .catalog-panel .component-list {
  display: none;
}

.app-shell.catalog-collapsed .panel-title-actions {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  min-height: 0;
}

.category-tabs button {
  min-height: 34px;
  padding: 0 10px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(94, 200, 214, 0.06), rgba(255, 122, 0, 0.04)), #101314;
  border-radius: 999px;
}

.category-tabs button[aria-selected="true"] {
  color: #111;
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent), var(--gold));
}

.component-list,
.build-summary {
  display: grid;
  gap: 10px;
}

.component-list {
  align-content: start;
  overflow-y: auto;
  padding-right: 6px;
  min-height: 0;
  overscroll-behavior: contain;
}

.component-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-left-color: rgba(94, 200, 214, 0.38);
  background:
    linear-gradient(135deg, rgba(94, 200, 214, 0.055), transparent 42%),
    #111415;
  border-radius: 8px;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.component-card:hover,
.component-card.dragging {
  border-color: rgba(255, 122, 0, 0.78);
  background:
    linear-gradient(135deg, rgba(255, 122, 0, 0.11), rgba(94, 200, 214, 0.08)),
    #171d1d;
  transform: translateY(-1px);
}

.component-card.incompatible {
  opacity: 0.46;
}

.thumb {
  width: 72px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: #111;
  background:
    linear-gradient(135deg, var(--accent), var(--gold) 55%, var(--cyan));
  border-radius: 6px;
  overflow: hidden;
  font-weight: 900;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.component-copy {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.component-copy h3,
.component-copy p {
  margin: 0;
}

.component-copy h3 {
  font-size: 0.96rem;
  line-height: 1.2;
}

.component-copy p {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.component-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.component-meta button,
.summary-row button,
.icon-button {
  min-height: 34px;
  padding: 0 10px;
}

.view-toggle {
  color: #111;
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent), var(--gold));
  font-weight: 800;
}

.clean-toggle {
  color: var(--gold);
  border-color: rgba(255, 194, 71, 0.42);
  background:
    linear-gradient(135deg, rgba(255, 194, 71, 0.13), rgba(94, 200, 214, 0.08)),
    #111617;
  font-weight: 800;
}

.clean-toggle[aria-pressed="true"] {
  color: #111;
  border-color: var(--gold);
  background: linear-gradient(135deg, var(--gold), var(--accent));
}

.view-toggle:disabled {
  color: var(--muted);
  border-color: var(--line);
  background: #111617;
}

.component-card button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.viewer-panel {
  grid-area: viewer;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(18, 22, 23, 0.82), rgba(18, 22, 23, 0.48)),
    radial-gradient(circle at 50% 28%, rgba(255, 176, 44, 0.12), transparent 31%),
    #171b1c;
}

.stage-meta {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.stage-meta strong {
  display: block;
  margin-top: 3px;
  font-family: "Bahnschrift", "Aptos Display", sans-serif;
  font-size: clamp(1.2rem, 2.4vw, 2rem);
  line-height: 1;
}

.model-stats {
  margin-top: 8px;
  color: var(--gold);
  font-size: 0.86rem;
  font-weight: 700;
}

.viewer-actions {
  display: flex;
  gap: 8px;
}

.icon-button:hover,
.about-van-button:hover,
.secondary-action:hover,
.summary-row button:hover,
.component-card button:hover {
  border-color: rgba(94, 200, 214, 0.66);
  box-shadow: 0 0 0 3px rgba(94, 200, 214, 0.1);
}

.canvas-wrap {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 18%, rgba(94, 200, 214, 0.14), transparent 28%),
    radial-gradient(circle at 24% 76%, rgba(255, 194, 71, 0.1), transparent 32%),
    linear-gradient(180deg, rgba(20, 24, 25, 0.12), rgba(20, 24, 25, 0.58)),
    var(--stage-image);
  background-position: center;
  background-size: cover;
}

.canvas-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(16, 20, 21, 0.56), transparent 28%, rgba(16, 20, 21, 0.4)),
    linear-gradient(0deg, rgba(16, 20, 21, 0.62), transparent 42%);
}

#vanCanvas {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
}

.model-logo {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 18px;
  width: min(220px, 45vw);
  max-height: 58px;
  object-fit: contain;
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 12, 13, 0.72);
  border-radius: 6px;
}

.exit-clean-view {
  position: absolute;
  z-index: 5;
  top: 18px;
  right: 18px;
  min-height: 40px;
  padding: 0 14px;
  color: #111;
  border: 1px solid var(--gold);
  border-radius: 6px;
  background: linear-gradient(135deg, var(--gold), var(--accent));
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
  font-weight: 900;
}

.exit-clean-view[hidden] {
  display: none;
}

.drop-hint,
.loader {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: rgba(13, 15, 16, 0.78);
  border-radius: 6px;
  color: var(--muted);
  pointer-events: none;
  opacity: 0;
  transition: opacity 160ms ease;
  z-index: 3;
}

.drop-hint {
  bottom: 22px;
}

.loader {
  top: 18px;
}

.drop-hint.visible,
.loader.visible {
  opacity: 1;
}

.socket-tooltip {
  position: absolute;
  z-index: 4;
  max-width: 220px;
  padding: 7px 9px;
  border: 1px solid rgba(255, 194, 71, 0.58);
  border-radius: 6px;
  color: #ffe6a3;
  background: rgba(18, 16, 10, 0.9);
  box-shadow: 0 0 18px rgba(255, 178, 26, 0.22);
  font-size: 0.76rem;
  font-weight: 800;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-50%);
  transition: opacity 120ms ease;
}

.socket-tooltip.visible {
  opacity: 1;
}

.model-notice {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: min(420px, calc(100% - 36px));
  padding: 22px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 194, 71, 0.3);
  border-radius: 8px;
  background:
    radial-gradient(circle at 80% 0%, rgba(94, 200, 214, 0.18), transparent 36%),
    linear-gradient(135deg, rgba(255, 122, 0, 0.14), rgba(11, 15, 16, 0.92) 44%),
    #101415;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.42);
  text-align: left;
}

.model-notice[hidden] {
  display: none;
}

.model-notice span,
.model-notice p {
  color: var(--muted);
}

.model-notice span {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.model-notice strong {
  display: block;
  margin: 8px 0;
  color: var(--gold);
  font-family: "Bahnschrift", "Aptos Display", sans-serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.05;
}

.model-notice p {
  margin: 0;
  line-height: 1.45;
}

.expansion-control {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  max-width: 420px;
  padding: 12px;
  border: 1px solid rgba(255, 194, 71, 0.32);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 194, 71, 0.12), rgba(94, 200, 214, 0.08)),
    rgba(10, 13, 14, 0.82);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(10px);
}

.expansion-control[hidden] {
  display: none;
}

.expansion-control label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.expansion-control span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.expansion-control strong {
  color: var(--gold);
  font-size: 0.82rem;
}

.expansion-control input {
  width: 100%;
  accent-color: var(--accent);
}

.summary-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(169, 201, 111, 0.06), transparent),
    #111415;
  border-radius: 8px;
}

.summary-row h3,
.summary-row p {
  margin: 0;
}

.summary-row h3 {
  font-size: 0.94rem;
}

.summary-row p {
  color: var(--muted);
  font-size: 0.78rem;
}

.empty-state {
  color: var(--muted);
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  line-height: 1.45;
}

.price-card {
  display: grid;
  gap: 12px;
  margin: 18px 0;
  padding: 16px;
  background:
    linear-gradient(135deg, rgba(255, 122, 0, 0.11), rgba(94, 200, 214, 0.06)),
    #101314;
  border: 1px solid rgba(255, 194, 71, 0.22);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.price-card > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.grand-total {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.grand-total strong {
  color: var(--accent);
  font-size: 1.35rem;
}

.van-about-dialog {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
}

.van-about-dialog::backdrop {
  background: rgba(4, 6, 7, 0.72);
  backdrop-filter: blur(8px);
}

.van-about-card {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(255, 194, 71, 0.28);
  border-radius: 8px;
  background:
    radial-gradient(circle at 80% 0%, rgba(94, 200, 214, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255, 122, 0, 0.15), rgba(18, 24, 25, 0.94) 42%),
    #121617;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.48);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  min-height: 34px;
  padding: 0 10px;
  color: var(--muted);
  background: rgba(13, 15, 16, 0.78);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.van-about-logo {
  width: min(260px, 70%);
  max-height: 76px;
  object-fit: contain;
  justify-self: start;
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(8, 10, 11, 0.58);
}

.van-about-card > span {
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.van-about-card h2,
.van-about-card p,
.van-about-specs {
  margin: 0;
}

.van-about-card h2 {
  font-family: "Bahnschrift", "Aptos Display", sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1;
}

.van-about-card p {
  color: var(--accent-2);
  font-size: 1rem;
  line-height: 1.45;
}

.van-about-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.van-about-specs div {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 6px;
  background: rgba(8, 12, 13, 0.62);
}

.van-about-specs dt {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.van-about-specs dd {
  margin: 5px 0 0;
  color: var(--ink);
  font-weight: 800;
}

.quote-form {
  display: grid;
  gap: 12px;
}

.quote-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.84rem;
}

.form-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--accent);
  font-size: 0.84rem;
}

@media (max-width: 1160px) {
  .app-shell {
    grid-template-rows: 86px minmax(0, 1fr);
  }

  .topbar {
    min-height: 86px;
    gap: 14px;
  }

  .brand {
    min-width: 230px;
  }

  .brand-logo {
    width: 140px;
    height: 56px;
  }

  select {
    min-width: 210px;
  }

  .configurator {
    grid-template-columns: 300px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) minmax(180px, 36dvh);
    grid-template-areas:
      "catalog viewer"
      "build viewer";
  }

  .app-shell.catalog-collapsed .configurator {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .build-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-rows: auto minmax(0, 1fr);
    width: 100vw;
    max-width: 100vw;
  }

  .topbar {
    min-height: 0;
    width: 100%;
    max-width: 100vw;
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    padding: 10px;
    overflow: hidden;
  }

  .form-actions {
    grid-template-columns: 1fr;
  }

  .topbar-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: stretch;
    gap: 8px;
    max-width: 100%;
  }

  .base-van-control {
    align-items: stretch;
    display: flex;
    flex: 1 0 100%;
    gap: 8px;
  }

  .select-wrap {
    flex: 1 1 0;
  }

  .about-van-button {
    flex: 0 0 76px;
  }

  .total-pill {
    flex: 1 1 0;
    min-width: 0;
    overflow: hidden;
  }

  .topbar-controls > .primary-action {
    flex: 0 0 82px;
    min-width: 0;
    padding: 0 12px;
    white-space: nowrap;
  }

  .brand {
    min-width: 0;
    justify-content: space-between;
    gap: 10px;
  }

  .brand-logo {
    width: 118px;
    height: 48px;
  }

  .brand strong {
    font-size: 0.86rem;
  }

  select {
    min-width: 0;
    width: 100%;
  }

  .configurator {
    width: 100%;
    max-width: 100vw;
    height: 100%;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(280px, 1fr) minmax(58px, 22dvh) minmax(58px, 20dvh);
    grid-template-areas:
      "viewer"
      "catalog"
      "build";
  }

  .app-shell.catalog-collapsed .configurator {
    grid-template-columns: minmax(0, 1fr);
  }

  .catalog-panel,
  .build-panel {
    padding: 12px;
    border: 0;
    border-top: 1px solid var(--line);
  }

  .catalog-panel {
    display: grid;
  }

  .viewer-panel {
    min-height: 0;
    grid-template-rows: auto minmax(0, 1fr);
  }

  .stage-meta {
    min-height: 0;
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    padding: 10px;
  }

  .stage-meta strong {
    font-size: clamp(1.05rem, 6vw, 1.42rem);
  }

  .model-stats {
    margin-top: 4px;
  }

  .viewer-actions {
    max-width: 100%;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
  }

  .icon-button {
    flex: 0 0 auto;
    min-height: 38px;
    white-space: nowrap;
  }

  .van-about-specs {
    grid-template-columns: 1fr;
  }

  .app-shell.catalog-collapsed .catalog-panel {
    max-height: 58px;
    overflow: hidden;
    padding: 12px;
  }

  .app-shell.catalog-collapsed .catalog-panel .panel-title {
    align-items: baseline;
    flex-direction: row;
    margin: 0;
  }

  .app-shell.catalog-collapsed .catalog-panel .panel-title > span,
  .app-shell.catalog-collapsed .catalog-panel .panel-title strong {
    display: inline;
  }

  .app-shell.catalog-collapsed .catalog-panel .category-tabs,
  .app-shell.catalog-collapsed .catalog-panel .component-list {
    display: none;
  }

  .app-shell.catalog-collapsed .panel-title-actions {
    writing-mode: horizontal-tb;
    transform: none;
  }
}

@media (max-width: 480px) {
  .topbar {
    padding: 8px;
  }

  .brand small {
    display: none;
  }

  .brand-logo {
    width: 106px;
    height: 44px;
  }

  .base-van-control {
    gap: 6px;
  }

  .total-pill,
  .primary-action,
  .about-van-button {
    min-height: 42px;
  }

  .about-van-button {
    flex-basis: 68px;
    padding: 0 10px;
  }

  .configurator {
    grid-template-rows: minmax(240px, 1fr) minmax(52px, 18dvh) minmax(52px, 16dvh);
  }

  .catalog-panel,
  .build-panel {
    padding: 10px;
  }

  .component-card {
    grid-template-columns: 56px 1fr;
    gap: 10px;
    padding: 9px;
  }

  .thumb {
    width: 56px;
  }

  .component-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .component-meta button {
    width: 100%;
  }

  .model-logo {
    top: 10px;
    left: 10px;
    width: min(150px, 44vw);
    max-height: 44px;
  }

  .expansion-control {
    left: 10px;
    right: 10px;
    bottom: 10px;
  }
}

.app-shell.build-collapsed .configurator {
  grid-template-columns: minmax(280px, 340px) minmax(520px, 1fr) 58px;
}

.app-shell.catalog-collapsed.build-collapsed .configurator {
  grid-template-columns: 58px minmax(520px, 1fr) 58px;
}

.app-shell.build-collapsed .build-panel {
  padding: 12px 8px;
  overflow: hidden;
}

.app-shell.build-collapsed .build-panel .panel-title {
  align-items: center;
  flex-direction: column;
  margin: 0;
}

.app-shell.build-collapsed .build-panel .panel-title > span,
.app-shell.build-collapsed .build-panel .panel-title strong,
.app-shell.build-collapsed .build-panel .build-summary,
.app-shell.build-collapsed .build-panel .price-card,
.app-shell.build-collapsed .build-panel .quote-form {
  display: none;
}

.app-shell.build-collapsed .build-panel .panel-title-actions {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.app-shell.clean-view {
  grid-template-rows: 0 minmax(0, 1fr);
}

.app-shell.clean-view .topbar,
.app-shell.clean-view .catalog-panel,
.app-shell.clean-view .build-panel,
.app-shell.clean-view .stage-meta {
  display: none;
}

.app-shell.clean-view .configurator,
.app-shell.clean-view.catalog-collapsed .configurator,
.app-shell.clean-view.build-collapsed .configurator,
.app-shell.clean-view.catalog-collapsed.build-collapsed .configurator {
  width: 100%;
  max-width: none;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  grid-template-areas: "viewer";
}

.app-shell.clean-view .viewer-panel {
  grid-template-rows: minmax(0, 1fr);
}

.app-shell.clean-view .canvas-wrap {
  min-height: 100%;
}

@media (max-width: 1160px) {
  .app-shell.build-collapsed .configurator {
    grid-template-columns: 300px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) 58px;
  }

  .app-shell.catalog-collapsed.build-collapsed .configurator {
    grid-template-columns: 58px minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .app-shell.build-collapsed .configurator,
  .app-shell.catalog-collapsed.build-collapsed .configurator {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(280px, 1fr) minmax(58px, 22dvh) 58px;
  }

  .app-shell.build-collapsed .build-panel .panel-title {
    align-items: baseline;
    flex-direction: row;
  }

  .app-shell.build-collapsed .build-panel .panel-title > span,
  .app-shell.build-collapsed .build-panel .panel-title strong {
    display: inline;
  }

  .app-shell.build-collapsed .build-panel .panel-title-actions {
    writing-mode: horizontal-tb;
    transform: none;
  }

  .app-shell.clean-view,
  .app-shell.clean-view .configurator,
  .app-shell.clean-view.catalog-collapsed .configurator,
  .app-shell.clean-view.build-collapsed .configurator,
  .app-shell.clean-view.catalog-collapsed.build-collapsed .configurator {
    width: 100vw;
    max-width: 100vw;
  }

  .app-shell.clean-view .configurator,
  .app-shell.clean-view.catalog-collapsed .configurator,
  .app-shell.clean-view.build-collapsed .configurator,
  .app-shell.clean-view.catalog-collapsed.build-collapsed .configurator {
    grid-template-rows: minmax(0, 1fr);
  }

  .exit-clean-view {
    top: 10px;
    right: 10px;
    min-height: 38px;
  }
}