/* 3D container configurator — matches the CCS site palette */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section-design {
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
}

.design-head {
  max-width: 42rem;
}

.design-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(20rem, 24.5rem);
  grid-template-rows: minmax(0, 1fr);
  gap: 1.15rem;
  align-items: stretch;
  min-height: 36rem;
  height: min(52rem, calc(100vh - 7rem));
  max-height: min(52rem, calc(100vh - 7rem));
  overflow: hidden;
}

.design-stage {
  position: relative;
  background: var(--bg-2);
  border: 1px solid var(--line);
  min-height: 0;
  height: 100%;
  min-width: 0;
  overflow: hidden;
}

#design-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  touch-action: none;
  cursor: grab;
}

#design-canvas:active {
  cursor: grabbing;
}

.design-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  background: var(--bg-2);
  color: var(--text-dim);
  z-index: 2;
}

.design-fallback[hidden] {
  display: none;
}

.design-view-tools {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  z-index: 1;
}

.design-tool,
.design-seg button,
.design-add-grid button,
.design-selected-actions button {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
  background: rgba(11, 12, 16, 0.72);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.4rem 0.65rem;
  min-height: 2.15rem;
  cursor: pointer;
}

.design-tool:hover,
.design-seg button:hover,
.design-add-grid button:hover,
.design-selected-actions button:hover {
  border-color: var(--accent);
  color: var(--text);
}

.design-hint {
  position: absolute;
  left: 0.85rem;
  bottom: 0.7rem;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  pointer-events: none;
}

.design-row[hidden],
#design-selected[hidden],
.design-notice[hidden],
.design-fallback[hidden],
#design-hatch-toggle[hidden] {
  display: none !important;
}

.design-panel {
  background: var(--bg-3);
  border: 1px solid var(--line);
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-height: 100%;
  height: 100%;
  overflow: hidden;
}

.design-panel-top,
.design-panel-body {
  padding-left: 1.15rem;
  padding-right: 1.15rem;
}

.design-panel-top {
  padding-top: 1.05rem;
  padding-bottom: 0.7rem;
}

.design-panel-body {
  flex: 1 1 auto;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding-bottom: 0.5rem;
}

.design-panel-foot {
  flex: 0 0 auto;
  padding: 0.85rem 1.15rem 1.15rem;
  border-top: 1px solid var(--line);
  background: var(--bg-3);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.design-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.design-panel-top h3 {
  font-size: 1.45rem;
}

.design-drawer-toggle,
.design-drawer-close,
.design-drawer-backdrop {
  display: none;
}

.design-panel fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.design-panel legend {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  padding: 0;
}

.design-seg {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.35rem;
}

.design-seg button {
  flex: 1;
  background: var(--bg);
}

.design-seg button[aria-pressed="true"],
.design-add-grid button:active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.design-seg-wrap {
  flex-wrap: wrap;
}

.design-seg-wrap button {
  flex: 1 1 calc(50% - 0.3rem);
}

.design-check {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.45rem;
  font-size: 0.92rem;
  cursor: pointer;
}

.design-check input {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--brand);
}

.design-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.design-swatches button,
.design-custom-color {
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
  border-radius: 50%;
  border: 2px solid var(--line-strong);
  background: var(--swatch, #01287c);
  cursor: pointer;
}

.design-swatches button[aria-pressed="true"],
.design-custom-color:focus-within {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.design-custom-color {
  display: inline-flex;
  overflow: hidden;
  background: conic-gradient(from 90deg, #01287c, #e8eaed, #1a1a1a, #2f4a33, #01287c);
}

.design-custom-color input {
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  border: 0;
  padding: 0;
}

.design-row {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
}

.design-row select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.45rem 0.55rem;
}

.design-add-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.design-add-grid button {
  background: var(--bg);
  text-align: left;
}

.design-add-grid button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.design-selected-name {
  font-family: var(--display);
  font-size: 1.35rem;
  margin: 0 0 0.15rem;
}

.design-selected-meta {
  margin: 0 0 0.6rem;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.design-selected-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.design-selected-actions button {
  background: var(--bg);
}

.design-selected-actions .is-danger {
  border-color: #8a3a3a;
  color: #e8a39a;
}

.design-spec {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: 0.25rem 0.7rem;
  margin: 0;
  font-size: 0.9rem;
}

.design-spec dt {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: 0.2rem;
}

.design-spec dd {
  margin: 0;
}

.design-spec-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0.7rem 0 0.3rem;
}

.design-spec-features {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-dim);
  font-size: 0.86rem;
}

.design-spec-features li + li {
  margin-top: 0.2rem;
}

.design-notice {
  margin: 0;
  font-size: 0.88rem;
  color: var(--accent-2);
  background: var(--accent-soft);
  border: 1px solid rgba(74, 126, 224, 0.35);
  padding: 0.55rem 0.7rem;
}

.design-notice.is-error {
  color: #e8a39a;
  background: rgba(138, 58, 58, 0.15);
  border-color: #8a3a3a;
}

.design-actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.design-actions .btn {
  width: 100%;
}

.design-disclaimer {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.quote-form.is-highlighted {
  box-shadow: 0 0 0 3px var(--accent-soft);
  border-color: var(--accent);
}

@media (max-width: 1040px) {
  .design-shell {
    grid-template-columns: 1fr;
    max-height: none;
  }

  .design-stage,
  #design-canvas {
    min-height: 28rem;
    height: 28rem;
  }

  .design-panel {
    max-height: none;
    height: auto;
  }
}

@media (max-width: 760px) {
  .design-shell {
    max-height: none;
    min-height: 0;
  }

  .design-stage,
  #design-canvas {
    min-height: 22.5rem;
    height: 22.5rem;
  }

  .design-hint {
    display: none;
  }

  .design-drawer-toggle {
    display: inline-flex;
    width: 100%;
  }

  .design-drawer-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 12, 16, 0.62);
    z-index: 60;
  }

  .design-panel {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    min-height: 0;
    max-height: 82vh;
    border-radius: 8px 8px 0 0;
    padding-bottom: calc(1.2rem + env(safe-area-inset-bottom, 0px));
  }

  .design-drawer-close {
    display: inline-flex;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    padding: 0.35rem 0.6rem;
    cursor: pointer;
  }

  .section-design.is-drawer-open .design-panel {
    display: flex;
    flex-direction: column;
  }

  .section-design.is-drawer-open .design-drawer-backdrop {
    display: block;
  }

  .section-design.is-drawer-open .design-drawer-backdrop {
    display: block;
  }
}


/* Interior & services group ------------------------------------------- */
.design-details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-4);
  margin: 0;
  padding: 0;
}

.design-details > summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.7rem 0.9rem;
}

.design-details > summary::-webkit-details-marker { display: none; }

.design-details > summary::after {
  content: "";
  float: right;
  width: 0.4rem;
  height: 0.4rem;
  margin-top: 0.2rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}

.design-details[open] > summary::after {
  margin-top: 0.4rem;
  transform: rotate(-135deg);
}

.design-details-body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 0 0.9rem 0.9rem;
}

.design-subfields {
  border: 0;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.design-subfields legend {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0;
  margin: 0 0 0.2rem;
}

.design-field-note {
  margin: 0.15rem 0 0;
  font-size: 0.75rem;
  color: var(--text-faint);
  line-height: 1.35;
}

.design-row-stack {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.3rem;
  margin-bottom: 0;
}

.design-row-stack label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}

.design-row-stack select,
.design-row-stack textarea {
  width: 100%;
  font: inherit;
  font-size: 0.9rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  resize: vertical;
  color-scheme: dark;
}

.design-details .design-check {
  color: var(--text);
  margin-top: 0.15rem;
}

.design-tool.is-active {
  background: var(--brand);
  color: #fff;
  border-color: var(--accent);
}

@media (max-width: 760px) {
  .design-details {
    margin-bottom: 0.35rem;
  }
}