.box-selector-launch { width: 100%; min-height: 52px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-elev-2); color: var(--text); text-align: left; cursor: pointer; }
.box-selector { width: min(1680px, calc(100vw - 24px)); height: calc(100dvh - 24px); max-width: none; max-height: none; margin: auto; padding: 0; border: 1px solid var(--border); border-radius: 16px; background: var(--bg-elev); color: var(--text); box-shadow: var(--shadow); overflow: hidden; }
.box-selector[open] { display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr) auto auto; }
.box-selector[open][data-stage="review"] { grid-template-rows: auto minmax(0, 1fr) auto; }
.box-selector .box-selector-navigation[hidden] { display: none; }
.box-selector > * { min-width: 0; }
.box-selector::backdrop { background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(8px); }
.box-selector button { color: var(--text); font: inherit; cursor: pointer; border: 1px solid var(--border); background: var(--bg-elev-2); border-radius: 9px; min-height: 40px; padding: 8px 14px; }
.box-selector button:hover { border-color: var(--accent); }
.box-selector button:focus-visible, .box-selector-options:focus-visible, .box-selector-launch:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.box-selector button:disabled { opacity: .55; cursor: wait; }
.box-selector-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 13px 22px; border-bottom: 1px solid var(--border); }
.box-selector-eyebrow { margin: 0 0 7px; color: var(--text-muted); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.box-selector h2 { margin: 0; font-size: clamp(20px, 2vw, 25px); font-weight: 600; letter-spacing: -.035em; }
.box-selector-progress { display: flex; gap: 8px; }
.box-selector-progress button { display: flex; align-items: center; gap: 9px; border-color: transparent; background: transparent; color: var(--text-muted); }
.box-selector-progress button > span:first-child { font-size: 11px; border: 1px solid var(--border); border-radius: 50%; width: 27px; height: 27px; display: grid; place-items: center; }
.box-selector-progress button[aria-current="step"] { color: var(--text); }
.box-selector-progress button[aria-current="step"] > span:first-child { border-color: var(--accent); color: var(--accent); }
.box-selector-progress button:disabled { cursor: default; }
.box-selector-header-actions { display: flex; align-items: center; gap: 10px; }
.box-selector-header-actions [data-action="theme"] { width: 40px; height: 40px; padding: 9px; display: grid; place-items: center; }
.box-selector-header-actions [data-action="theme"] svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 1.5; fill: none; }
.box-selector-header-actions [data-action="theme"] path { fill: currentColor; stroke: none; }
.box-selector .box-selector-close { font-size: 26px; line-height: 1; min-width: 40px; padding: 4px; background: transparent; border-color: transparent; }
.box-selector-content { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 32%); grid-template-rows: minmax(0, 1fr) auto; min-height: 0; }
.box-selector-scene { position: relative; min-width: 0; min-height: 0; overflow: hidden; background: radial-gradient(ellipse at 50% 58%, color-mix(in srgb, var(--accent) 9%, var(--bg-elev-2)), var(--bg)); }
.box-selector-viewport { position: absolute; inset: 0 0 28px; }
.box-selector .viewport { width: 100%; height: 100%; min-height: 0; background: transparent; border: 0; }
.box-selector .viewport canvas { display: block; touch-action: none; }
.box-selector-scene-caption { position: absolute; bottom: 8px; left: 16px; right: 16px; display: flex; justify-content: space-between; gap: 12px; color: var(--text-muted); font-size: 10px; pointer-events: none; }
.box-selector-info { grid-column: 2; grid-row: 1 / 3; padding: 16px; display: flex; flex-direction: column; min-width: 0; min-height: 0; gap: 10px; border-left: 1px solid var(--border); }
.box-selector-code { display: block; font-size: 11px; letter-spacing: .09em; color: var(--text-muted); font-weight: 500; }
.box-selector-info h3 { margin: 0 0 5px; font-size: clamp(21px, 1.9vw, 28px); font-weight: 700; line-height: 1.12; letter-spacing: -.025em; text-wrap: balance; }
.box-selector-reference, .box-selector-note { margin: 6px 0 0; font-size: 11px; color: var(--text-muted); line-height: 1.4; }
.box-selector-note { margin: 0; }
.box-selector-parts { display: flex; flex-wrap: wrap; gap: 4px; }
.box-selector-parts span { padding: 3px 6px; background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: 5px; font-size: 10px; }
.box-selector-premium:empty { display: none; }
.box-selector-navigation { display: flex; align-items: center; gap: 12px; padding: 6px 18px; border-top: 1px solid var(--border); background: var(--bg); }
.box-selector-navigation > button { min-width: 42px; height: 50px; font-size: 25px; }
.box-selector-options { display: flex; flex: 1; min-width: 0; justify-content: safe center; gap: 10px; padding: 8px; overflow-x: auto; scrollbar-width: thin; perspective: 900px; touch-action: pan-y; }
.box-selector-options button { display: grid; align-content: space-between; flex: 0 0 164px; gap: 7px; min-height: 76px; padding: 10px 12px; text-align: left; transform: rotateY(calc(var(--distance) * -7deg)) translateZ(-8px); opacity: .7; transition: transform 450ms cubic-bezier(.2,.7,.2,1), opacity 300ms, border-color 300ms; }
.box-selector-options button[aria-selected="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--bg-elev)); transform: translateZ(12px); opacity: 1; box-shadow: inset 0 -2px var(--accent); }
.box-selector-options strong { font-size: 15px; font-weight: 700; line-height: 1.2; }
.box-selector-options span { font-size: 11px; font-weight: 400; color: var(--text-muted); line-height: 1.2; }
.box-selector-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 10px 20px; border-top: 1px solid var(--border); }
.box-selector-footer > div { display: flex; gap: 10px; }
.box-selector-announcement { margin: 0; font-size: 12px; color: var(--text-muted); }
.box-selector .box-selector-confirm { background: var(--accent-2); border-color: var(--accent-2); color: white; font-weight: 600; min-width: 205px; }
.box-selector-fallback { position: absolute; inset: 12px 30px 35px; display: grid; place-items: center; text-align: center; background: var(--bg); z-index: 1; }
.box-selector-fallback img { max-width: 85%; max-height: 230px; object-fit: contain; }
.box-selector-fallback p { max-width: 400px; font-size: 13px; color: var(--text-muted); }
.box-selector-viewport.is-unavailable { visibility: hidden; }
.box-selector-loading { position: absolute; top: 10px; left: 16px; font-size: 11px; color: var(--text-muted); }
.box-selector-assembly-status { position: absolute; left: 16px; top: 10px; right: 16px; color: var(--text-muted); font-size: 11px; pointer-events: none; }
.box-selector-construction { grid-column: 1; grid-row: 2; padding: 12px 18px; border-top: 1px solid var(--border); min-width: 0; }
.box-selector-construction header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.box-selector-construction h4 { margin: 0; font-size: 12px; font-weight: 650; }
.box-selector-construction dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px 18px; margin: 12px 0 0; }
.box-selector[data-stage="base"] .box-selector-construction dl { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.box-selector-construction dt { font-size: 10px; color: var(--text-muted); margin-bottom: 3px; }
.box-selector-construction dd { margin: 0; font-size: 12px; line-height: 1.3; overflow-wrap: anywhere; }
.box-blueprint { --bp-bg: #081e33; --bp-line: #aed8ef; --bp-text: #c0d9e9; --bp-grid: #25506a; --bp-base: #7dcfff; --bp-cover: #ffcf80; --bp-acrylic: #82efd1; --bp-pvc: #dbb6ff; background: var(--bp-bg); color: var(--bp-text); border: 1px solid #32617e; border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; flex: 1; min-height: 0; }
.box-blueprint[hidden] { display: none; }
.box-blueprint > :not(.box-blueprint-drawing) { flex-shrink: 0; }
.box-blueprint header { padding: 12px 14px 9px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.box-blueprint h4 { margin: 0; font-size: 13px; font-weight: 650; letter-spacing: .015em; }
.box-blueprint header > span { font: 10px ui-monospace, monospace; white-space: nowrap; }
.box-blueprint-controls { display: grid; grid-template-columns: 1fr 1.6fr .8fr; gap: 8px; padding: 0 12px; }
.box-blueprint-controls label { display: flex; flex-direction: column; gap: 5px; min-width: 0; font-size: 10px; }
.box-blueprint select { width: 100%; padding: 7px 4px; font: inherit; font-size: 11px; border: 1px solid #39627e; border-radius: 5px; background: var(--bp-bg); color: var(--bp-text); min-height: 32px; }
.box-blueprint select:focus-visible, .box-blueprint input:focus-visible { outline: 2px solid var(--bp-base); outline-offset: 2px; }
.box-blueprint select:disabled { opacity: .65; }
.box-blueprint-position { display: grid; grid-template-columns: auto minmax(40px, 1fr) auto; align-items: center; gap: 8px; margin: 10px 12px 3px; font-size: 10px; }
.box-blueprint-position input { width: 100%; min-width: 0; padding: 0; accent-color: var(--bp-base); }
.box-blueprint-position output { font: 10px ui-monospace, monospace; }
.box-blueprint-drawing { position: relative; flex: 1; min-height: 120px; }
.box-blueprint-drawing svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.blueprint-profile { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.blueprint-base { color: var(--bp-base); }
.blueprint-cover { color: var(--bp-cover); }
.blueprint-acrylic { color: var(--bp-acrylic); }
.blueprint-pvc { color: var(--bp-pvc); }
.blueprint-dimension-line { stroke: var(--bp-line); stroke-width: .7; fill: none; }
.blueprint-dimension { fill: var(--bp-text); font: 10px ui-monospace, monospace; }
.blueprint-grid { stroke: var(--bp-grid); stroke-width: .35; fill: none; }
.box-blueprint-legend { display: flex; flex-wrap: wrap; gap: 6px 12px; padding: 2px 14px 8px; font-size: 10px; }
.box-blueprint-legend span::before { content: ''; display: inline-block; width: 13px; border-top: 2px solid currentColor; vertical-align: middle; margin-right: 5px; }
.box-blueprint-reference { margin: 0; padding: 9px 14px; border-top: 1px solid var(--bp-grid); font-size: 10px; line-height: 1.45; }
:root[data-theme="light"] .box-blueprint { --bp-bg: #ecf4fa; --bp-line: #23577a; --bp-text: #254e68; --bp-grid: #b5d0e0; --bp-base: #005d91; --bp-cover: #975800; --bp-acrylic: #007764; --bp-pvc: #7d389e; border-color: #a5c4d9; }
@media (min-width: 701px) and (max-height: 820px) {
  .box-selector-info { padding: 12px; gap: 8px; }
  .box-selector-info h3 { font-size: 22px; }
  .box-blueprint header { padding: 8px 12px; }
  .box-blueprint-position { margin-top: 6px; }
}
@media (max-width: 1000px) {
  .box-selector-header { padding: 12px 16px; gap: 10px; }
  .box-selector-content { grid-template-columns: minmax(0, 1fr) 310px; }
  .box-selector-info { padding: 12px; }
  .box-selector-progress button { padding: 5px; font-size: 12px; }
  .box-selector-scene-caption { flex-direction: column; gap: 3px; }
  .box-selector-viewport { bottom: 40px; }
  .box-selector-construction dl, .box-selector[data-stage="base"] .box-selector-construction dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .box-selector { width: 100vw; height: 100dvh; border-radius: 0; }
  .box-selector-header { flex-wrap: wrap; padding: 8px 12px; gap: 5px; }
  .box-selector-header > div:first-child { flex: 1; }
  .box-selector-header-actions { order: 1; }
  .box-selector-progress { order: 2; width: 100%; }
  .box-selector-eyebrow { font-size: 9px; margin-bottom: 4px; }
  .box-selector h2 { font-size: 20px; }
  .box-selector-progress button { min-height: 30px; padding: 0 4px; }
  .box-selector-progress button > span:first-child { width: 23px; height: 23px; }
  .box-selector-content { grid-template-columns: minmax(0, 1fr) 140px; grid-template-rows: minmax(130px, 1fr) auto; }
  .box-selector-scene { grid-column: 1 / 3; grid-row: 1; }
  .box-selector-info { grid-column: 1; grid-row: 2; border-left: 0; border-top: 1px solid var(--border); padding: 8px; gap: 6px; }
  .box-selector-info h3 { font-size: 17px; }
  .box-selector-code { font-size: 10px; }
  .box-selector-reference, .box-selector-note { font-size: 10px; line-height: 1.3; }
  .box-selector-construction { grid-column: 2; grid-row: 2; padding: 10px 8px; border-left: 1px solid var(--border); }
  .box-selector-construction header { gap: 6px; }
  .box-selector-construction h4 { font-size: 11px; }
  .box-selector-construction dl, .box-selector[data-stage="base"] .box-selector-construction dl { grid-template-columns: 1fr; gap: 6px; margin-top: 8px; }
  .box-selector-construction dt { font-size: 9px; margin-bottom: 1px; }
  .box-selector-construction dd { font-size: 11px; }
  .box-selector-parts { gap: 3px; }
  .box-selector-parts span { font-size: 9px; padding: 2px 4px; }
  .box-blueprint header { padding: 7px 8px; }
  .box-blueprint h4 { font-size: 11px; }
  .box-blueprint-controls { gap: 4px; padding: 0 6px; }
  .box-blueprint-controls label { font-size: 9px; gap: 3px; }
  .box-blueprint select { min-height: 27px; padding: 4px 0; font-size: 10px; }
  .box-blueprint-position { margin: 6px 6px 0; gap: 4px; font-size: 9px; }
  .box-blueprint-position output { font-size: 9px; }
  .box-blueprint-legend { padding: 2px 8px 5px; gap: 6px; }
  .box-blueprint-reference { padding: 6px 8px; font-size: 9px; }
  .box-selector-navigation { padding: 2px 6px; gap: 2px; }
  .box-selector-navigation > button { min-width: 30px; padding: 4px; }
  .box-selector-options { gap: 5px; padding: 6px; }
  .box-selector-options button { flex-basis: 139px; min-height: 64px; padding: 7px; }
  .box-selector-options strong { font-size: 12px; }
  .box-selector-options span { font-size: 10px; }
  .box-selector-footer { padding: 7px 10px; flex-direction: column; gap: 5px; align-items: stretch; }
  .box-selector-footer > div { justify-content: space-between; }
  .box-selector-footer button { padding: 6px 10px; font-size: 12px; min-height: 36px; }
  .box-selector .box-selector-confirm { min-width: 0; flex: 1; }
  .box-selector-announcement { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) { .box-selector *, .box-selector *::before { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

#retroMountEditor { display: grid; gap: 8px; min-width: 0; }
#retroMountEditor[hidden] { display: none; }
#retroMountEditor h2, #retroMountEditor p { margin: 0; }
#retroMountEditor button { min-height: 32px; font-size: 11px; padding: 6px 8px; }
#retroMountEditor button[aria-pressed="true"] { border-color: var(--accent, #089e9b); }
#retroMountEditor .field { min-width: 0; }
#retroMountEditor input, #retroMountEditor select { width: 100%; box-sizing: border-box; }
#retroDistances { overflow-wrap: anywhere; }
#retroEditorBlueprint { height: auto; min-height: 0; }
#retroEditorBlueprint svg { display: block; width: 100%; height: auto; }
[data-theme="light"] #retroMountEditor button { color: #193b54; background: #f3f8fe; border-color: #a4bed4; }
[data-theme="light"] #retroMountEditor button[aria-pressed="true"] { color: #086d6b; border-color: #089e9b; background: #e5f5f3; }
[data-theme="light"] #retroMountEditor input, [data-theme="light"] #retroMountEditor select { color: #193b54; background: #fff; border-color: #a4bed4; }
[data-theme="light"] #retroEditorBlueprint .blueprint-dimension { fill: #23364c; }
[data-theme="dark"] #retroEditorBlueprint .blueprint-dimension { fill: #e5edf7; }
.retro-distribution { grid-column: 1 / -1; display: grid; gap: 9px; min-width: 0; }
.retro-distribution[hidden] { display: none; }
.retro-distribution h3, .retro-distribution p { margin: 0; }
.retro-distribution input, .retro-distribution select { width: 100%; box-sizing: border-box; }
.retro-distribution .retro-mechanical-details > .field { margin-top: 8px; }
.retro-distribution .retro-mechanical-details > .field-help { margin: 8px 0; }
.retro-distribution p, #retroEditorCoverage { overflow-wrap: anywhere; line-height: 1.45; }
#retroOptimizationResult[data-state="warning"], #retroEditorCoverage[data-state="warning"] { border-left: 3px solid #d89b46; padding-left: 8px; }
[data-theme="light"] .retro-distribution .field-help { color: #425970; }
[data-theme="dark"] .retro-distribution .field-help { color: #bbcad9; }