/* ENGINE styles. Everything the configurator injects into #cfg-rail, plus the
   interior stage view it populates and the print spec sheet it clones.
   Tokens come from site.css (never redefined here). Class prefix: .cfg-. */

.cfg {
  font-family: var(--sans);
  color: var(--ink);
  border-top: 1px solid var(--line);
}

.cfg-tnum {
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------ accordion */

.cfg-step {
  border-bottom: 1px solid var(--line);
}

.cfg-step-h {
  margin: 0;
  font: inherit;
}

.cfg-step-btn {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
  min-height: 56px;
  padding: var(--space-md);
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}

.cfg-step-btn:hover {
  background: var(--paper-2);
}

.cfg-step-num {
  flex-shrink: 0;
  min-width: 1.7em;
  font-family: var(--serif);
  font-size: var(--text-lg);
  font-weight: 400;
  line-height: 1;
  color: var(--ink-2);
}

.cfg-step-label {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.cfg-step-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}

.cfg-step-value {
  font-size: var(--text-sm);
  color: var(--ink-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.cfg-step-chev {
  flex-shrink: 0;
  display: inline-flex;
  color: var(--ink-2);
  transition: transform var(--dur-fast) var(--ease-out);
}

.cfg-step-btn[aria-expanded='true'] .cfg-step-chev {
  transform: rotate(180deg);
}

.cfg-panel {
  padding: 0 var(--space-md) var(--space-xl);
}

/* ---------------------------------------------------------- shared copy */

.cfg-lead {
  margin: 0 0 var(--space-md);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-2);
}

.cfg-note {
  margin: var(--space-md) 0 0;
  font-size: var(--text-xs);
  line-height: 1.55;
  color: var(--ink-2);
}

.cfg-muted {
  color: var(--ink-2);
}

/* --------------------------------------------------------- option lists */

.cfg-opts {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.cfg-vh {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.cfg-opt {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.cfg-opt:hover {
  background: var(--paper-2);
}

.cfg-opt:has(input:checked) {
  border-color: var(--rust);
  background: var(--paper-2);
}

.cfg-opt:has(.cfg-vh:focus-visible) {
  outline: 2px solid var(--rust);
  outline-offset: 2px;
}

/* radio mark (version, exterior, systems) */
.cfg-mark {
  position: relative;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--taupe);
  border-radius: 50%;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.cfg-opt:has(input:checked) .cfg-mark {
  border-color: var(--rust);
}

.cfg-opt:has(input:checked) .cfg-mark::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--rust);
}

/* version option */
.cfg-opt--version {
  align-items: flex-start;
}

.cfg-opt--version .cfg-mark {
  margin-top: 3px;
}

.cfg-opt-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.cfg-opt-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}

.cfg-opt-name {
  font-family: var(--serif);
  font-size: var(--text-base);
  color: var(--ink);
}

.cfg-opt-price {
  font-size: var(--text-sm);
  color: var(--ink);
}

.cfg-opt-blurb {
  font-size: var(--text-sm);
  color: var(--ink-2);
}

.cfg-opt-spec {
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

/* exterior option */
.cfg-swatch {
  display: block;
  flex-shrink: 0;
  width: 64px;
  height: 40px;
  border-radius: 2px;
  overflow: hidden;
  line-height: 0;
}

.cfg-mat-text {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.cfg-mat-name {
  font-size: var(--text-sm);
  color: var(--ink);
}

.cfg-mat-finish {
  font-size: var(--text-xs);
  color: var(--ink-2);
}

/* tags */
.cfg-tag {
  flex-shrink: 0;
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--ink-2);
  white-space: nowrap;
}

.cfg-tag--cost {
  border-color: var(--taupe);
}

/* --------------------------------------------------------------- systems */

.cfg-sys-intro {
  margin: 0 0 var(--space-lg);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--ink-2);
}

.cfg-link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink);
  font-family: inherit;
  font-size: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.cfg-link:hover {
  color: var(--rust);
}

.cfg-sys-set {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.cfg-sys {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.cfg-sys-label {
  margin: 0;
  padding-bottom: var(--space-2xs);
  border-bottom: 1px solid var(--line);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}

.cfg-opts--sys {
  gap: var(--space-xs);
}

.cfg-sys-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--text-sm);
  color: var(--ink);
}

.cfg-spec-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cfg-spec-line {
  position: relative;
  padding-left: var(--space-md);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--ink-2);
}

.cfg-spec-line::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--taupe);
}

/* -------------------------------------------------------------- upgrades */

.cfg-opt--upg {
  align-items: flex-start;
}

.cfg-check {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border: 1.5px solid var(--taupe);
  border-radius: 3px;
  color: transparent;
  transition: border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.cfg-check svg {
  width: 14px;
  height: 14px;
}

.cfg-opt--upg:has(input:checked) .cfg-check {
  border-color: var(--rust);
  color: var(--rust);
}

.cfg-upg-text {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.cfg-upg-name {
  font-size: var(--text-sm);
  color: var(--ink);
}

.cfg-upg-detail {
  font-size: var(--text-xs);
  color: var(--ink-2);
}

/* --------------------------------------------------------------- summary */

.cfg-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.cfg-sheet {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.cfg-row {
  display: grid;
  grid-template-columns: minmax(96px, 34%) 1fr;
  gap: var(--space-2xs) var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--line);
}

.cfg-row:first-child {
  padding-top: 0;
}

.cfg-row dt {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--ink-2);
}

.cfg-row dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--ink);
}

.cfg-subline {
  display: block;
  margin-top: 3px;
  font-size: var(--text-xs);
  color: var(--ink-2);
}

.cfg-kds {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cfg-kd {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
}

.cfg-kd-n {
  color: var(--ink-2);
}

.cfg-kd-d {
  color: var(--ink);
  text-align: right;
}

.cfg-upg-rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.cfg-upg-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.cfg-pricing {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.cfg-formula {
  margin: 0;
  font-family: var(--serif);
  font-size: var(--text-base);
  color: var(--ink);
}

.cfg-formula-total {
  color: var(--rust);
  font-weight: 700;
}

.cfg-pricing-copy {
  margin: 0;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------------------------------------------------------------- actions */

.cfg-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.cfg-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: var(--space-sm) var(--space-md);
  border-radius: 3px;
  font-family: var(--sans);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.cfg-action--primary {
  border: 1px solid var(--rust);
  background: var(--rust);
  color: var(--paper);
}

.cfg-action--primary:hover {
  background: color-mix(in oklab, var(--rust) 88%, var(--ink));
  border-color: color-mix(in oklab, var(--rust) 88%, var(--ink));
}

.cfg-action--ghost {
  border: 1px solid var(--taupe);
  background: transparent;
  color: var(--ink);
}

.cfg-action--ghost:hover {
  background: var(--paper-2);
  border-color: var(--ink-2);
}

.cfg-action-row {
  display: flex;
  gap: var(--space-sm);
}

.cfg-action-row .cfg-action {
  flex: 1 1 0;
}

.cfg-action.is-flashed {
  border-color: var(--rust);
  color: var(--rust);
}

.cfg-copy-fallback {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--taupe);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
}

/* -------------------------------------------------- interior stage view */

.cfg-interior {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  height: 100%;
  padding: var(--space-md);
  box-sizing: border-box;
  overflow-y: auto;
}

.cfg-int-strip {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.cfg-int-fig {
  flex: 0 0 auto;
  width: min(80%, 340px);
  margin: 0;
  border-radius: 2px;
  overflow: hidden;
  scroll-snap-align: start;
}

.cfg-int-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 506;
  object-fit: cover;
  background: var(--paper-2);
}

.cfg-int-cap {
  padding: 5px 8px;
  background: var(--charcoal);
  color: var(--paper);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.cfg-int-h {
  margin: 0 0 var(--space-xs);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}

.cfg-int-mat-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.cfg-int-mat {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding-bottom: var(--space-2xs);
  border-bottom: 1px solid var(--line);
  font-size: var(--text-sm);
}

.cfg-int-mat-name {
  color: var(--ink);
}

.cfg-int-mat-where {
  color: var(--ink-2);
  text-align: right;
}

/* ----------------------------------------------------------- focus rings */

.cfg-step-btn:focus-visible,
.cfg-link:focus-visible,
.cfg-action:focus-visible,
.cfg-copy-fallback:focus-visible,
.cfg-int-strip:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 2px;
}

/* --------------------------------------------------------- coarse pointer */

@media (pointer: coarse) {
  .cfg-step-btn {
    min-height: 56px;
  }

  .cfg-opt {
    min-height: 48px;
  }

  .cfg-action {
    min-height: 52px;
  }

  .cfg-link {
    display: inline-block;
    padding: 4px 2px;
  }
}

/* ---------------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  .cfg-step-btn,
  .cfg-step-chev,
  .cfg-opt,
  .cfg-mark,
  .cfg-check,
  .cfg-action {
    transition: none;
  }
}

/* ------------------------------------------------------------ print sheet
   The engine clones the current spec into a body-level .cfg-print-root and
   sets body.printing-spec before window.print(). On screen the clone is
   hidden; in print every other top-level node is removed so the sheet
   prints alone and clean. */

.cfg-print-root {
  display: none;
}

@media print {
  body.printing-spec > *:not(.cfg-print-root) {
    display: none !important;
  }

  .cfg-print-root {
    display: block;
  }

  .cfg-print-doc {
    padding: 14mm;
    color: var(--ink);
    font-family: var(--sans);
  }

  .cfg-print-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--ink);
  }

  .cfg-print-brand {
    font-size: 10pt;
    letter-spacing: 0.2em;
    text-transform: uppercase;
  }

  .cfg-print-title {
    font-family: var(--serif);
    font-size: 16pt;
  }

  .cfg-print-doc .cfg-sheet {
    margin: 0;
    display: block;
  }

  .cfg-print-doc .cfg-row {
    display: grid;
    grid-template-columns: 30% 1fr;
    gap: 6px 16px;
    padding: 6px 0;
    border-bottom: 1px solid var(--taupe);
    break-inside: avoid;
  }

  .cfg-print-doc dt {
    font-size: 9.5pt;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .cfg-print-doc dd {
    margin: 0;
    font-size: 11pt;
    color: var(--ink);
  }

  .cfg-print-doc .cfg-formula {
    margin: 14px 0 6px;
    font-family: var(--serif);
    font-size: 13pt;
  }

  .cfg-print-doc .cfg-formula-total {
    color: var(--ink);
    font-weight: 700;
  }

  .cfg-print-doc .cfg-pricing-copy {
    margin: 0;
    font-size: 9pt;
    color: var(--ink);
  }
}

/* review pass: interior view never collapses, centers safely, hints its scroll */
.cfg-interior { overflow-y: auto; }
.cfg-interior::before, .cfg-interior::after { content: ''; flex: 1 0 0; }
.cfg-int-strip {
  flex: 0 0 auto;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 48px), transparent);
  mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 48px), transparent);
}

/* qa pass: honest 16px on the visually hidden controls */
.cfg-vh { font-size: 16px; }