/* FPA component assembly composer (/fpa-assembly.php) and assembly thumbnails. FDS tokens only. */
.fpa-asm { display: grid; gap: var(--fds-space-3); outline: none; }
.fpa-asm-toolbar { display: flex; flex-wrap: wrap; gap: var(--fds-space-2) var(--fds-space-4); align-items: center; padding: var(--fds-space-2) var(--fds-space-3); border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-gray-50); }
.fpa-asm-tools { display: flex; flex-wrap: wrap; gap: var(--fds-space-2); align-items: center; }
.fpa-asm-tools .fds-select { width: auto; min-width: 140px; }
.fpa-asm-tools-end { margin-inline-start: auto; }
.fpa-asm-stats { color: var(--fds-gray-600); font-size: 12px; white-space: nowrap; }
.fpa-asm-grid { display: grid; grid-template-columns: 200px minmax(0, 1fr) 300px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); overflow: hidden; background: #fff; height: clamp(560px, calc(100vh - 220px), 820px); }
.fpa-asm-palette { padding: var(--fds-space-3); border-inline-end: 1px solid var(--fds-border); overflow: auto; }
.fpa-asm-palette h3, .fpa-asm-side h3 { margin: 0 0 var(--fds-space-2); font-size: 14px; }
.fpa-asm-side h3 { margin-top: var(--fds-space-4); }
.fpa-asm-side h3:first-child { margin-top: 0; }
.fpa-asm-group h4 { margin: var(--fds-space-3) 0 var(--fds-space-2); font-size: 12px; color: var(--fds-gray-600); font-weight: 600; }
.fpa-asm-kinds { display: grid; grid-template-columns: 1fr 1fr; gap: var(--fds-space-2); }
.fpa-asm-kind { display: grid; justify-items: center; gap: 4px; padding: var(--fds-space-2) 4px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: #fff; font: inherit; font-size: 12px; color: var(--fds-gray-800); cursor: grab; }
.fpa-asm-kind:hover:not(:disabled) { border-color: var(--fds-blue-600); background: var(--fds-gray-50); }
.fpa-asm-kind:active { cursor: grabbing; }
.fpa-asm-kind:disabled { cursor: default; opacity: .6; }
.fpa-asm-stage { position: relative; min-width: 0; background: linear-gradient(180deg, #fbfbfa, #f1f0ec); }
.fpa-asm-canvas { position: absolute; inset: 0; }
.fpa-asm-canvas canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.fpa-asm-fit { position: absolute; left: var(--fds-space-3); bottom: var(--fds-space-6, 40px); width: 250px; padding: var(--fds-space-2) var(--fds-space-3); border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: rgba(255, 255, 255, .92); backdrop-filter: blur(6px); font-size: 12px; display: grid; gap: 4px; }
.fpa-asm-fit p { margin: 0; }
.fpa-asm-fit-head { display: flex; justify-content: space-between; align-items: center; gap: var(--fds-space-2); margin-bottom: 2px; }
.fpa-asm-axis { display: grid; grid-template-columns: 28px 1fr auto; gap: var(--fds-space-2); color: var(--fds-gray-700); }
.fpa-asm-axis.is-bad { color: var(--fds-red-700); font-weight: 600; }
.fpa-asm-delta { font-variant-numeric: tabular-nums; }
.fpa-asm-warn { color: var(--fds-red-700); font-weight: 600; }
.fpa-asm-problems { margin: 0; padding-left: 1.2em; color: var(--fds-red-700); display: grid; gap: 2px; }
.fpa-asm-problem { padding: 0; border: 0; background: none; color: inherit; font: inherit; text-align: start; text-decoration: underline; cursor: pointer; }
.fpa-asm-fit .fds-btn { justify-self: start; margin-top: 4px; }
.fpa-asm-hint { position: absolute; left: var(--fds-space-3); right: var(--fds-space-3); bottom: var(--fds-space-2); margin: 0; font-size: 12px; color: var(--fds-gray-500); pointer-events: none; }
.fpa-asm-limit { position: absolute; top: var(--fds-space-3); left: 50%; transform: translateX(-50%); margin: 0; padding: 6px 12px; border-radius: var(--fds-radius-md); background: var(--fds-red-700); color: #fff; font-size: 12px; pointer-events: none; }
.fpa-asm-limit[hidden] { display: none; }
.fpa-asm-reference { position: absolute; top: var(--fds-space-3); right: var(--fds-space-3); margin: 0; width: 120px; padding: 4px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: #fff; }
.fpa-asm-reference img { display: block; width: 100%; height: 110px; object-fit: contain; }
.fpa-asm-reference figcaption { font-size: 11px; color: var(--fds-gray-600); text-align: center; }
.fpa-asm-side { padding: var(--fds-space-3); border-inline-start: 1px solid var(--fds-border); overflow: auto; }
.fpa-asm-layers { display: grid; gap: 4px; }
.fpa-asm-layer { display: grid; grid-template-columns: 22px 1fr auto; gap: var(--fds-space-2); align-items: center; padding: 6px var(--fds-space-2); border: 1px solid transparent; border-radius: var(--fds-radius-md); background: none; font: inherit; font-size: var(--ssa-compact-font, 13px); text-align: start; cursor: pointer; }
.fpa-asm-layer:hover { background: var(--fds-gray-50); }
.fpa-asm-layer.is-selected { border-color: var(--fds-blue-600); background: var(--fds-gray-50); }
.fpa-asm-layer small { color: var(--fds-gray-500); font-variant-numeric: tabular-nums; }
.fpa-asm-props-title { display: flex; gap: var(--fds-space-2); align-items: center; margin: 0 0 var(--fds-space-2); padding: var(--fds-space-2); border-radius: var(--fds-radius-md); background: var(--fds-gray-50); }
.fpa-asm-props-title .fds-meta { margin-inline-start: auto; }
/* Property groups: one card per group, collapsible, sliders in one column. */
.fpa-asm-section { margin-bottom: var(--fds-space-2); border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: #fff; overflow: hidden; }
.fpa-asm-section > summary { display: flex; align-items: center; justify-content: space-between; gap: var(--fds-space-2); padding: 8px 10px; font-size: 13px; font-weight: 600; color: var(--fds-gray-900); background: var(--fds-gray-50); cursor: pointer; list-style: none; border-inline-start: 3px solid var(--fds-blue-600); }
.fpa-asm-section > summary::-webkit-details-marker { display: none; }
.fpa-asm-section > summary::after { content: '▾'; color: var(--fds-gray-500); transition: transform .15s; }
.fpa-asm-section:not([open]) > summary::after { transform: rotate(-90deg); }
.fpa-asm-section[data-assembly-section="metal"] > summary { border-inline-start-color: var(--fds-amber-700); }
.fpa-asm-section[data-assembly-section="fabric"] > summary, .fpa-asm-section[data-assembly-section="material"] > summary { border-inline-start-color: var(--fds-green-700); }
.fpa-asm-section[data-assembly-section="top"] > summary, .fpa-asm-section[data-assembly-section="openings"] > summary { border-inline-start-color: var(--fds-gray-500); }
.fpa-asm-section-body { display: grid; gap: 10px; padding: 10px; }
.fpa-asm-section-body .fpa-asm-connection { margin: 0; }
.fpa-asm-slider { display: grid; gap: 2px; }
.fpa-asm-slider-head { display: flex; align-items: center; justify-content: space-between; gap: var(--fds-space-2); font-size: 12px; color: var(--fds-gray-700); }
.fpa-asm-number { width: 76px; text-align: end; font-variant-numeric: tabular-nums; }
.fpa-asm-range { width: 100%; margin: 0; accent-color: var(--fds-blue-600); cursor: pointer; }
.fpa-asm-range:disabled { cursor: default; }
.fpa-asm-fields { display: grid; grid-template-columns: 1fr 1fr; gap: var(--fds-space-2); margin-bottom: var(--fds-space-2); }
.fpa-asm-field { display: grid; gap: 2px; font-size: 12px; color: var(--fds-gray-700); }
.fpa-asm-field .fds-input, .fpa-asm-field .fds-select { min-width: 0; width: 100%; }
.fpa-asm-check { display: flex; gap: var(--fds-space-2); align-items: center; font-size: 13px; }
.fpa-asm-actions { display: flex; flex-wrap: wrap; gap: var(--fds-space-2); margin-top: var(--fds-space-2); }
.fpa-asm-colors { display: grid; grid-template-columns: 1fr 1fr; gap: var(--fds-space-2); margin-top: var(--fds-space-2); }
.fpa-asm-color { display: flex; gap: var(--fds-space-2); align-items: center; font-size: 12px; }
.fpa-asm-color input { width: 32px; height: var(--ssa-compact-control, 28px); padding: 0; border: 1px solid var(--fds-border); border-radius: 6px; background: none; }
.fpa-asm-series { display: grid; gap: var(--fds-space-2); }
.fpa-asm-connection { display: grid; grid-template-columns: 1fr; gap: var(--fds-space-2); margin: var(--fds-space-2) 0; padding: var(--fds-space-2); border-radius: var(--fds-radius-md); background: var(--fds-gray-50); font-size: 12px; }
.fpa-asm-connection .fds-btn { justify-self: start; }
.fpa-asm-pending { margin: 0; }
.fpa-asm-series .fds-btn { justify-self: start; }
/* Part glyphs: small CSS silhouettes, no image assets. */
.fpa-asm-icon { display: block; width: 22px; height: 18px; position: relative; }
.fpa-asm-icon::before, .fpa-asm-icon::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); background: var(--fds-gray-500); }
.fpa-asm-icon.is-base::before { bottom: 4px; width: 20px; height: 11px; border-radius: 3px 3px 1px 1px; background: var(--fds-gray-300); }
.fpa-asm-icon.is-base::after { bottom: 1px; width: 20px; height: 3px; border-radius: 1px; background: var(--fds-amber-700); }
.fpa-asm-icon.is-stand::before { bottom: 0; width: 20px; height: 16px; border: 2px solid var(--fds-amber-700); border-bottom-width: 0; background: none; }
.fpa-asm-icon.is-stand::after { top: 0; width: 20px; height: 3px; background: var(--fds-gray-300); }
.fpa-asm-icon.is-sleeve::before { bottom: 0; width: 12px; height: 16px; clip-path: polygon(38% 0, 62% 0, 100% 100%, 0 100%); background: var(--fds-amber-700); }
.fpa-asm-icon.is-hoop::before { top: 1px; width: 14px; height: 14px; border: 2px solid var(--fds-amber-700); border-radius: 50%; background: none; }
.fpa-asm-icon.is-branch::before { top: 1px; width: 16px; height: 16px; clip-path: polygon(0 0, 18% 0, 50% 55%, 82% 0, 100% 0, 58% 70%, 58% 100%, 42% 100%, 42% 70%); background: var(--fds-amber-700); }
.fpa-asm-icon.is-plate::before { bottom: 2px; width: 22px; height: 4px; border-radius: 50%; background: var(--fds-amber-700); }
.fpa-asm-icon.is-block::before { bottom: 1px; width: 22px; height: 9px; border-radius: 3px; }
.fpa-asm-icon.is-cushion::before { bottom: 1px; width: 22px; height: 12px; border-radius: 6px 6px 3px 3px; background: var(--fds-green-700); }
.fpa-asm-icon.is-rod::before { bottom: 0; width: 3px; height: 18px; background: var(--fds-amber-700); }
.fpa-asm-icon.is-bar::before { top: 4px; width: 22px; height: 4px; border-radius: 2px; background: var(--fds-amber-700); }
.fpa-asm-icon.is-hook::before { top: 5px; width: 12px; height: 3px; background: var(--fds-amber-700); }
.fpa-asm-icon.is-hook::after { top: 2px; left: 16px; width: 3px; height: 6px; background: var(--fds-amber-700); }
.fpa-asm-icon.is-board::before { bottom: 0; width: 16px; height: 18px; border-radius: 3px; transform: translateX(-50%) skewX(-8deg); }
.fpa-asm-icon.is-wedge::before { bottom: 1px; width: 22px; height: 14px; clip-path: polygon(0 0, 100% 45%, 100% 100%, 0 100%); }
.fpa-asm-icon.is-cone::before { bottom: 0; width: 16px; height: 18px; clip-path: polygon(38% 0, 62% 0, 100% 100%, 0 100%); border-radius: 2px; }
.fpa-asm-icon.is-bloom::before { top: 3px; width: 18px; height: 12px; border-radius: 50% 50% 40% 40%; clip-path: polygon(0 20%, 30% 60%, 50% 0, 70% 60%, 100% 20%, 85% 100%, 15% 100%); }
.fpa-asm-icon.is-ribbon::before { bottom: 0; width: 4px; height: 18px; border-radius: 2px; }
.fpa-asm-icon.is-ribbon::after { top: 0; width: 18px; height: 4px; border-radius: 2px; }
.fpa-asm-icon.is-pillow::before { bottom: 2px; width: 22px; height: 12px; border-radius: 50%; }
.fpa-asm-icon.is-roller::before { top: 5px; width: 22px; height: 9px; border-radius: 5px; }
.fpa-asm-icon.is-bust::before { bottom: 0; width: 18px; height: 12px; border-radius: 9px 9px 2px 2px; }
.fpa-asm-icon.is-bust::after { bottom: 11px; width: 6px; height: 7px; border-radius: 2px; }
/* Thumbnails in component lists and the details page. */
.ss-assembly-thumb { display: block; width: 56px; height: 56px; object-fit: contain; border-radius: var(--fds-radius-md); background: var(--fds-gray-50); }
.ss-assembly-cell { display: flex; gap: var(--fds-space-2); align-items: center; }
.ss-assembly-block { display: flex; flex-wrap: wrap; gap: var(--fds-space-3); align-items: center; padding: var(--fds-space-3); margin-bottom: var(--fds-space-3); border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-gray-50); }
.ss-assembly-block .ss-assembly-thumb { width: 112px; height: 112px; background: #fff; }
.ss-assembly-block-text { display: grid; gap: 4px; flex: 1 1 200px; }
.ss-assembly-block-text p { margin: 0; }
/* Model choice for the 3D views (component details, model card). */
.ss-model-source { display: grid; gap: var(--fds-space-2); margin-bottom: var(--fds-space-3); }
.ss-model-source .fds-segmented { justify-self: start; max-width: 100%; }
.ss-model-source .fds-segmented button { padding: 0 var(--fds-space-3); }
.ss-model-source .fds-segmented button:disabled { color: var(--fds-gray-400, #9ca3af); cursor: not-allowed; }
.ss-model-source p { margin: 0; }
.ss-model-source .is-warning { color: var(--fds-amber-700); }
@media (max-width: 1199px) { .fpa-asm-grid { grid-template-columns: 180px minmax(0, 1fr); height: auto; } .fpa-asm-side { grid-column: 1 / -1; border-inline-start: 0; border-block-start: 1px solid var(--fds-border); max-height: none; } .fpa-asm-stage { min-height: 520px; } }
@media (max-width: 767px) {
  .fpa-asm-grid { grid-template-columns: minmax(0, 1fr); height: auto; }
  .fpa-asm-stage { grid-row: 1; min-height: 420px; }
  .fpa-asm-palette { border-inline-end: 0; border-block-start: 1px solid var(--fds-border); }
  .fpa-asm-kinds { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
  .fpa-asm-fit { width: auto; right: var(--fds-space-3); bottom: var(--fds-space-6, 40px); }
  .fpa-asm-reference { display: none; }
  .fpa-asm-tools-end { margin-inline-start: 0; }
}
@media (pointer: coarse) { .fpa-asm .fpa-asm-kind, .fpa-asm .fpa-asm-range, .fpa-asm .fpa-asm-check { min-height: 44px; } }
.ss-assembly-block-text .fds-btn { justify-self: start; }
/* FDS extension: one row per material use — colour swatch and name, then the library material. */
.fpa-asm-looks { display: grid; gap: var(--fds-space-2); margin-top: var(--fds-space-2); }
.fpa-asm-look { display: grid; grid-template-columns: minmax(84px, auto) minmax(0, 1fr); gap: var(--fds-space-2); align-items: center; }
.fpa-asm-look .fds-select { min-width: 0; }
/* FDS extension: the component photo opens large in a dialog. */
.fpa-asm-reference-open { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; }
.fpa-asm-reference-open:focus-visible { outline: 2px solid var(--fds-blue-600); outline-offset: 2px; }
.fpa-asm-photo-dialog { box-sizing: border-box; width: min(92vw, 960px); max-height: 92dvh; padding: 0; border: 0; border-radius: var(--fds-radius-lg); background: var(--fds-white); }
.fpa-asm-photo-dialog[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
.fpa-asm-photo-dialog::backdrop { background: rgb(0 0 0 / .55); }
.fpa-asm-photo-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: var(--fds-space-3); padding: var(--fds-space-3) var(--fds-space-4); border-bottom: 1px solid var(--fds-border); }
.fpa-asm-photo-dialog > img { display: block; width: 100%; height: auto; max-height: calc(92dvh - 64px); object-fit: contain; padding: var(--fds-space-3); box-sizing: border-box; }
/* FDS extension: silhouettes for photograph-derived assembly parts. */
.fpa-asm-icon.is-arm::before { width: 14px; height: 14px; border: 3px solid var(--fds-amber-700); border-right: 0; border-bottom: 0; border-radius: 6px 0 0; background: transparent; }
.fpa-asm-icon.is-rollerSupport::before,.fpa-asm-icon.is-mirrorYoke::before { width: 18px; height: 14px; border: 2px solid var(--fds-amber-700); border-top: 0; background: transparent; border-radius: 0 0 3px 3px; }
.fpa-asm-icon.is-contourBoard::before { width: 14px; height: 18px; border-radius: 65% 45% 65% 25%; }
.fpa-asm-icon.is-mirrorPanel::before { width: 14px; height: 18px; border: 2px solid var(--fds-amber-700); background: var(--fds-gray-100); border-radius: 50%; }
.fpa-asm-icon.is-taperedFrame::before { width: 20px; height: 16px; border: 2px solid var(--fds-amber-700); border-bottom: 0; background: transparent; transform: translateX(-50%) perspective(30px) rotateX(-10deg); }
.fpa-photo-samples { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.fpa-photo-samples select { max-width: 100%; min-width: min(300px,100%); }
/* FDS extension: local assembly contact sheet; each card opens the real composer. */
.fpa-overview { max-width: 1600px; margin-inline: auto; }
.fpa-overview-head { margin-block: 16px 24px; }
.fpa-overview-head h1 { margin: 0 0 12px; }
.fpa-overview-head p { max-width: 76ch; line-height: 1.6; }
.fpa-overview-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
:where(body:not([data-ssa-controls="compact-v1"])) .fpa-overview-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border: 1px solid var(--fds-gray-300); border-radius: 8px; color: var(--fds-gray-800); background: var(--fds-white,white); text-decoration: none; }
.fpa-overview-section { margin-block: 32px; scroll-margin-top: 80px; }
.fpa-overview-section h2,.fpa-overview-section summary { margin-bottom: 16px; font-size: 20px; font-weight: 600; }
.fpa-overview-section summary { cursor: pointer; padding-block: 12px; }
.fpa-overview-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(min(100%,260px),1fr)); gap: 20px; }
.fpa-overview-card { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border: 1px solid var(--fds-gray-300); border-radius: 12px; text-decoration: none; color: var(--fds-gray-900); background: var(--fds-white,white); }
.fpa-overview-card:hover { border-color: var(--fds-amber-700); }
.fpa-overview-card:focus-visible,.fpa-overview-nav a:focus-visible { outline: 3px solid var(--fds-amber-700); outline-offset: 3px; }
.fpa-overview-visual { aspect-ratio: 1; display: grid; place-items: center; background: var(--fds-gray-50); }
.fpa-overview-visual img { display: block; width: 100%; height: 100%; object-fit: contain; }
.fpa-overview-caption { padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.fpa-overview-caption strong { line-height: 1.5; }
.fpa-overview-open { color: var(--fds-amber-700); font-weight: 600; margin-top: 4px; }
/* FDS extension: grouped assembly template gallery. */
.fpa-template-dialog { width: min(1000px, calc(100vw - 32px)); max-width: none; height: min(800px, calc(100dvh - 48px)); max-height: none; padding: 0; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-gray-50); color: var(--fds-gray-900); }
.fpa-template-dialog[open] { display: flex; flex-direction: column; }
.fpa-template-dialog::backdrop { background: rgb(0 0 0 / 45%); }
.fpa-template-header { display: flex; justify-content: space-between; align-items: center; gap: var(--fds-space-3); padding: var(--fds-space-4); background: white; }
.fpa-template-header h2 { font-size: 20px; margin: 0; }
.fpa-template-nav { display: flex; flex-wrap: wrap; gap: var(--fds-space-2); padding: var(--fds-space-3) var(--fds-space-4); border-block: 1px solid var(--fds-border); }
.fpa-template-body { overflow: auto; min-height: 0; position: relative; padding: var(--fds-space-4); }
.fpa-template-group { margin-bottom: var(--fds-space-5); }
.fpa-template-group h3 { margin: 0 0 var(--fds-space-3); font-size: 16px; }
.fpa-template-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: var(--fds-space-3); }
.fpa-template-card { display: flex; flex-direction: column; align-items: stretch; gap: var(--fds-space-2); padding: var(--fds-space-3); border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: white; color: inherit; font: inherit; cursor: pointer; text-align: start; }
.fpa-template-card:hover { border-color: var(--fds-gray-600); }
.fpa-template-card:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; }
.fpa-template-card[aria-pressed=true] { border: 2px solid #2563eb; }
.fpa-template-image { display: grid; place-items: center; aspect-ratio: 1; background: var(--fds-gray-50); border-radius: var(--fds-radius-md); }
.fpa-template-image img { width: 100%; height: 100%; object-fit: contain; }
.fpa-template-current { color: #2563eb; font-size: 12px; }
@media(max-width: 520px) { .fpa-template-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .fpa-template-card { padding: var(--fds-space-2); font-size: 12px; } }

/* FDS extension: model-centred assembly workbench. Layout and presentation only. */
.fpa-assembly-page { min-width: 0; }
.fpa-assembly-page .ss-sub-head { margin-bottom: var(--fds-space-3); }
.fpa-assembly-page > .ssa-field-help { margin-block: 8px 12px; max-width: 100ch; }
.fpa-assembly-page > a.fds-btn { margin-bottom: 8px; }
.fpa-assembly-page .fpa-photo-samples { display: inline-flex; margin: 0 0 8px 12px; gap: 10px; vertical-align: top; }
.fpa-assembly-page .fpa-photo-samples select { min-width: 260px; width: 310px; }
.fpa-asm { gap: 8px; }
.fpa-asm-toolbar { padding: 8px 12px; background: var(--fds-white); gap: 8px 16px; }
.fpa-asm-toolbar-caption { color: var(--fds-gray-500); font-size: 12px; }
.fpa-asm-grid { grid-template-columns: 176px minmax(0, 1fr) 304px; height: clamp(560px, calc(100dvh - 330px), 960px); background: var(--fds-white); }
.fpa-asm-stage { display: grid; grid-template-rows: auto minmax(240px, 1fr) auto auto; min-height: 0; background: var(--fds-gray-50); }
.fpa-asm-canvas { position: relative; inset: auto; min-height: 0; overflow: hidden; }
.fpa-asm-viewbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; background: var(--fds-white); border-bottom: 1px solid var(--fds-border); }
.fpa-asm-viewbar .fpa-asm-tools { gap: 2px; }
.fpa-asm-viewbar [data-assembly-view] { border: 0; box-shadow: none; }
.fpa-asm-viewbar [data-assembly-view][aria-pressed="true"] { background: var(--fds-gray-100); color: var(--fds-gray-900); font-weight: 600; }
.fpa-asm-view-quality .fds-select { min-width: 104px; }
.fpa-asm-stats { font-size: 11px; margin-inline-start: 8px; }
.fpa-asm-palette { padding: 14px 10px; background: var(--fds-white); }
.fpa-asm-palette > .fpa-asm-kind { width: 100%; display: flex; justify-content: center; margin-bottom: 8px; background: var(--fds-gray-50); }
.fpa-asm-palette > .fds-meta { font-size: 11px; line-height: 1.6; }
.fpa-asm-palette > p:empty { display: none; }
.fpa-asm-palette h3 { margin-top: 16px; font-weight: 600; }
.fpa-asm-group > summary { padding-block: 12px 8px; font-size: 12px; font-weight: 600; color: var(--fds-gray-600); cursor: pointer; }
.fpa-asm-kinds { gap: 4px; }
.fpa-asm-kind { min-height: 58px; border-color: transparent; border-radius: var(--fds-radius-sm); font-size: 11px; padding: 8px 2px; }
.fpa-asm-kind:hover:not(:disabled) { background: var(--fds-gray-50); border-color: var(--fds-gray-200); }
.fpa-asm-kind:focus-visible, .fpa-asm-layer:focus-visible { outline: 2px solid var(--fds-blue-600); outline-offset: -2px; }
.fpa-asm-side { display: flex; flex-direction: column; padding: 0; overflow: hidden; background: var(--fds-white); min-height: 0; }
.fpa-asm-layer-panel { flex: none; border-bottom: 1px solid var(--fds-border); padding: 12px; }
.fpa-asm-layer-panel > summary { font-size: 12px; font-weight: 600; color: var(--fds-gray-700); cursor: pointer; }
.fpa-asm-layers { max-height: 142px; overflow: auto; margin-top: 8px; }
.fpa-asm-layer { width: 100%; font-size: var(--ssa-compact-font, 12px); grid-template-columns: 20px minmax(0,1fr) auto; padding: 6px; }
.fpa-asm-layer.is-selected { border-color: var(--fds-blue-600); background: var(--fds-blue-50); }
.fpa-asm-layer small { font-size: 10px; }
.fpa-asm-inspector-nav { display: flex; flex: none; gap: 16px; padding: 0 14px; border-bottom: 1px solid var(--fds-border); }
.fpa-asm-inspector-nav .fds-btn { border: 0; border-bottom: 2px solid transparent; border-radius: 0; padding: 12px 0; font-size: var(--ssa-compact-font, 12px); color: var(--fds-gray-500); background: transparent; box-shadow: none; }
.fpa-asm-inspector-nav [aria-pressed="true"] { border-bottom-color: var(--fds-blue-600); color: var(--fds-gray-900); font-weight: 600; }
.fpa-asm-inspector-body { padding: 12px; overflow: auto; min-height: 0; flex: 1; }
.fpa-asm-inspector-body[hidden] { display: none; }
.fpa-asm-props-title { position: sticky; top: -12px; z-index: 1; margin: -12px -12px 12px; padding: 12px; border-bottom: 1px solid var(--fds-border); border-radius: 0; background: var(--fds-white); font-size: 13px; }
.fpa-asm-section { border: 0; border-bottom: 1px solid var(--fds-border); border-radius: 0; margin-bottom: 6px; }
.fpa-asm-section > summary { background: transparent; border: 0; padding: 10px 0; font-size: 12px; }
.fpa-asm-section-body { padding: 2px 0 12px; gap: 12px; }
.fpa-asm-slider { gap: 5px; }
.fpa-asm-slider-head { font-size: 12px; }
.fpa-asm .fpa-asm-number { width: 76px; }
.fpa-asm-range { height: 12px; }
.fpa-asm-fit { position: static; transform: none; width: auto; padding: 0; border: 0; border-top: 1px solid var(--fds-border); border-radius: 0; background: var(--fds-white); backdrop-filter: none; display: block; }
.fpa-asm-fit > summary { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 14px; cursor: pointer; list-style: none; font-size: 11px; }
.fpa-asm-fit > summary::-webkit-details-marker { display: none; }
.fpa-asm-fit > summary::after { content: '⌄'; margin-inline-start: auto; color: var(--fds-gray-500); }
.fpa-asm-fit[open] > summary::after { transform: rotate(180deg); }
.fpa-asm-fit-dimensions { color: var(--fds-gray-500); font-variant-numeric: tabular-nums; }
.fpa-asm-fit-content { display: grid; gap: 5px; padding: 0 14px 12px; max-height: 180px; overflow: auto; }
.fpa-asm-fit:not([open]) > .fpa-asm-fit-content { display: none; }
.fpa-asm-axis { grid-template-columns: 28px minmax(0,1fr) auto; max-width: 320px; }
.fpa-asm-hint { position: static; padding: 7px 14px; background: var(--fds-white); border-top: 1px solid var(--fds-border); color: var(--fds-gray-600); pointer-events: auto; font-size: 11px; }
.fpa-asm-hint summary { cursor: pointer; }
.fpa-asm-hint p { margin: 6px 0; line-height: 1.7; max-width: 72ch; }
.fpa-asm-reference { top: 12px; right: 12px; width: 110px; padding: 0; background: var(--fds-white); box-shadow: var(--fds-shadow-1); }
.fpa-asm-reference summary { padding: 8px 10px; font-size: 11px; cursor: pointer; color: var(--fds-gray-600); }
.fpa-asm-reference img { height: 100px; }
.fpa-asm-reference figcaption { display: none; }
.fpa-asm-limit { top: 64px; z-index: 2; }
.fpa-asm.is-palette-collapsed .fpa-asm-palette { display: none; }
.fpa-asm.is-palette-collapsed .fpa-asm-grid { grid-template-columns: minmax(0,1fr) 304px; }
@media (min-width: 768px) and (max-width: 1199px) {
  .fpa-asm-grid { grid-template-columns: 136px minmax(0,1fr) 276px; height: 640px; }
  .fpa-asm-side { grid-column: auto; border-inline-start: 1px solid var(--fds-border); border-block-start: 0; }
  .fpa-asm-stage { min-height: 0; }
  .fpa-asm.is-palette-collapsed .fpa-asm-grid { grid-template-columns: minmax(0,1fr) 276px; }
  .fpa-asm-stats, .fpa-asm-toolbar-caption { display: none; }
}
@media (max-width: 767px) {
  .fpa-asm-grid, .fpa-asm.is-palette-collapsed .fpa-asm-grid { grid-template-columns: minmax(0,1fr); height: auto; }
  .fpa-asm-stage { grid-row: 1; height: 500px; min-height: 0; }
  .fpa-asm-palette { max-height: 240px; }
  .fpa-asm-side { max-height: 620px; border-inline-start: 0; }
  .fpa-asm-inspector-body { max-height: 400px; flex: auto; }
  .fpa-asm-reference { display: block; }
  .fpa-asm-toolbar-caption, .fpa-asm-stats { display: none; }
  .fpa-assembly-page .fpa-photo-samples { display: flex; margin-inline-start: 0; }
  .fpa-assembly-page .fpa-photo-samples select { width: 100%; min-width: 0; }
  .fpa-photo-samples .fds-meta { display: none; }
  .fpa-asm-fit-dimensions { display: none; }
}
.fpa-assembly-page .ss-sub-head { margin-bottom: 10px; }
.fpa-assembly-page .ss-sub-head h1 { font-size: 20px; }
.fpa-assembly-page .ss-sub-head-main > div > .fds-meta { display: inline-block; font-size: 12px; margin-inline-end: 12px; }
.fpa-assembly-page [data-assembly-save-status] { padding: 2px 8px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-pill); background: var(--fds-white); }
.fpa-assembly-intro { margin: 0 0 10px; font-size: 12px; color: var(--fds-gray-600); }
.fpa-assembly-intro summary, .fpa-asm-palette-help summary { cursor: pointer; }
.fpa-assembly-intro p { max-width: 96ch; line-height: 1.7; }
.fpa-asm-palette-help { font-size: 11px; line-height: 1.7; color: var(--fds-gray-600); margin-bottom: 8px; }

/* Compact page identity and one consolidated editing toolbar. */
.fpa-assembly-page .ss-sub-head { margin-bottom: 12px; align-items: center; }
.fpa-assembly-page .ss-sub-head h1 { gap: 8px; font-size: 19px; }
.fpa-assembly-page .ss-sub-head h1 .fds-badge { font-size: 11px; font-weight: 500; letter-spacing: normal; }
.fpa-asm-toolbar { min-height: 46px; padding: 6px 10px; gap: 8px 12px; }
.fpa-asm-toolbar-extras { display: flex; align-items: center; gap: 6px; }
.fpa-asm-toolbar-extras .fpa-asm-sample-choice { width: 140px; min-width: 0; }
.fpa-asm-toolbar-extras .ss-more-menu > .fds-btn { border-color: transparent; background: transparent; box-shadow: none; }
.fpa-asm-grid { height: clamp(560px, calc(100dvh - 260px), 1000px); }
.fpa-assembly-help { width: min(560px, calc(100vw - 32px)); padding: 20px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-white); color: var(--fds-gray-800); }
.fpa-assembly-help::backdrop { background: rgb(0 0 0 / .35); }
.fpa-assembly-help header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fpa-assembly-help p { font-size: 13px; line-height: 1.8; }
@media (max-width: 767px) {
  .fpa-assembly-page .ss-sub-head { align-items: flex-start; }
  .fpa-asm-toolbar { gap: 6px; }
  .fpa-asm-toolbar-extras { flex-wrap: wrap; }
  .fpa-asm-grid { height: auto; }
}

/* Assembly-only bottom gutter; keep a small clearance below the workbench. */
.ssa-main:has(.fpa-assembly-page .fpa-asm) { padding-bottom: var(--fds-space-3); }
/* FDS extension: fill the actual remaining viewport, including a wrapping page head. */
@media (min-width: 768px) {
  .ssa-app:has(.fpa-assembly-page .fpa-asm) { height: 100dvh; }
  .ssa-body:has(.fpa-assembly-page .fpa-asm) { min-height: 0; }
  .ssa-body:has(.fpa-assembly-page .fpa-asm) > .ssa-header { flex-shrink: 0; }
  .ssa-main:has(.fpa-assembly-page .fpa-asm) { display: flex; flex-direction: column; flex: 1; min-height: 0; padding-bottom: 8px; }
  .fpa-assembly-page:has(.fpa-asm) { display: flex; flex-direction: column; flex: 1; min-height: 0; }
  .fpa-assembly-page > .ss-sub-head { flex-shrink: 0; }
  .fpa-assembly-page > .fpa-asm { display: flex; flex-direction: column; flex: 1; min-height: 0; }
  .fpa-assembly-page .fpa-asm-toolbar { flex-shrink: 0; }
  .fpa-assembly-page .fpa-asm-grid { height: auto; min-height: 360px; flex: 1; }
}
/* Compact identity strip: title, metadata and save actions share one row on desktop. */
@media (min-width: 768px) {
  .ssa-main:has(.fpa-assembly-page .fpa-asm) { padding-top: 8px; }
  .fpa-assembly-page .ss-sub-head { margin-bottom: 8px; min-height: 40px; }
  .fpa-assembly-page .ss-sub-head-main { align-items: center; gap: 12px; }
  .fpa-assembly-page .ss-sub-head-main > div { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; }
  .fpa-assembly-page .ss-sub-head h1 { font-size: 17px; line-height: 1.4; }
  .fpa-assembly-page .ss-sub-head-main > div > .fds-meta { margin: 0; font-size: 11px; }
  .fpa-assembly-page .ss-back-link { margin-block-start: 0; }
  :where(body:not([data-ssa-controls="compact-v1"])) .fpa-assembly-page .ss-back-link { min-height: 30px; padding-block: 4px; font-size: 12px; }
}
/* One footer row: dimensional status on the left, interaction help on the right. */
.fpa-asm-stage { grid-template-rows: auto minmax(120px, 1fr) auto; }
.fpa-asm-stage-footer { display: grid; grid-template-columns: minmax(0, 1fr) minmax(130px, 32%); align-items: start; max-height: 180px; overflow: auto; border-top: 1px solid var(--fds-border); background: var(--fds-white); }
.fpa-asm-stage-footer .fpa-asm-fit { border-top: 0; }
.fpa-asm-stage-footer .fpa-asm-hint { border-top: 0; padding: 12px 14px; }
.fpa-asm-stage-footer .fpa-asm-hint[open] { width: auto; }
@media (max-width: 767px) {
  .fpa-asm-stage-footer .fpa-asm-fit > summary { padding-inline: 8px; gap: 4px; }
  .fpa-asm-stage-footer .fpa-asm-hint { padding-inline: 8px; }
  .fpa-asm-stage-footer .fpa-asm-hint[open] { width: auto; }
}
/* Two property views share the original comfortable field spacing. */
.fpa-asm-property-nav { display: flex; gap: 4px; margin-bottom: 12px; padding: 3px; border-radius: var(--fds-radius-md); background: var(--fds-gray-50); }
.fpa-asm-property-nav .fds-btn { flex: 1; min-width: 0; border: 1px solid transparent; border-radius: var(--fds-radius-sm); color: var(--fds-gray-600); background: transparent; }
.fpa-asm-property-nav [aria-pressed="true"] { border-color: var(--fds-border); background: var(--fds-white); color: var(--fds-gray-900); font-weight: 600; }
/* Keep both toolbar containers at their accepted height. */
.fpa-asm-viewbar { min-height: 46px; padding: 6px 10px; box-sizing: border-box; }

/* A touch toolbar needs room around the shared 44px controls. */
@media (pointer: coarse) {
  .fpa-asm-viewbar { min-height: 58px; }
}
/* Open oval bangle holder: front silhouette with its central gap and support stem. */
.fpa-asm-icon.is-bangleHolder::before { top: 0; width: 20px; height: 12px; border: 2px solid var(--fds-amber-700); border-bottom-color: transparent; border-radius: 50%; background: transparent; }
.fpa-asm-icon.is-bangleHolder::after { top: 12px; width: 3px; height: 6px; background: var(--fds-amber-700); }
/* FDS extension: shape-only native drag image and in-canvas placement feedback. */
.fpa-asm-drag-icon { position: fixed; left: -1000px; top: 0; width: 48px; height: 48px; display: grid; place-items: center; pointer-events: none; background: transparent; }
.fpa-asm-drag-icon .fpa-asm-icon { transform: scale(1.7); }
.fpa-asm-drop-status { position: absolute; top: 12px; left: 12px; z-index: 3; max-width: min(340px, calc(100% - 24px)); margin: 0; padding: 8px 12px; border: 1px solid var(--fds-blue-600); border-radius: var(--fds-radius-md); background: var(--fds-white); color: var(--fds-blue-700); font-size: 12px; line-height: 1.6; pointer-events: none; box-shadow: var(--fds-shadow-1); }
.fpa-asm-drop-status[hidden] { display: none; }
.fpa-asm-drop-status[data-state="invalid"] { color: var(--fds-red-700); border-color: var(--fds-red-700); }
.fpa-asm-drop-status[data-state="free"] { color: var(--fds-green-700); border-color: var(--fds-green-700); }
/* Compact palette heading; keep static logo guidance inside the help disclosure. */
.fpa-asm-palette > .fpa-asm-kind { margin-bottom: 4px; }
.fpa-asm-palette > [data-fpa-mark-status]:not(:empty) { margin: 4px 0 8px; }
.fpa-asm-palette-head { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 8px; }
.fpa-asm-palette-head h3 { margin: 0; }
.fpa-asm-palette-head .fpa-asm-palette-help { margin: 0; }
.fpa-asm-palette-head summary { padding-block: 4px; white-space: nowrap; }
.fpa-asm-palette-help-body { position: absolute; top: 100%; left: 0; right: 0; z-index: 4; padding: 10px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-white); box-shadow: var(--fds-shadow-1); }
.fpa-asm-palette-help-body p { margin: 0; }
.fpa-asm-palette-help-body p + p { margin-top: 8px; }
/* Inspector content spacing; ordinary controls inherit the shared SSA scale. */
.fpa-asm-side { font-size: 12px; line-height: 1.5; }
.fpa-asm .fpa-asm-side .fpa-asm-layer { padding-inline: 6px; }
.fpa-asm .fpa-asm-side .fpa-asm-layer > span:nth-child(2) { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.fpa-asm .fpa-asm-side select { width: 100%; min-width: 0; }
.fpa-asm .fpa-asm-side h3,
.fpa-asm .fpa-asm-side h4 { font-size: 12px; line-height: 1.5; font-weight: 600; }
.fpa-asm-mark-editor { display: grid; gap: 12px; margin-bottom: 12px; }
.fpa-asm-mark-editor h4 { margin: 0; }
.fpa-asm-mark-editor .fpa-asm-actions { margin-top: 0; }
.fpa-asm-side .fpa-asm-color input[type="color"] { box-sizing: border-box; height: var(--ssa-control); min-height: var(--ssa-control); min-width: var(--ssa-control); border-radius: var(--ssa-control-radius); }

.fpa-asm .fpa-asm-side button[aria-pressed="true"] { font-weight: 600; }
.fpa-asm .fpa-asm-side .fpa-asm-check { font-size: 12px; }
/* Compact logo card itself, independently of the part silhouette cards. */
.fpa-asm-palette > [data-fpa-mark-palette] { box-sizing: border-box; height: 36px; min-height: 36px; padding: 5px 8px; align-items: center; gap: 6px; }
.fpa-asm-palette > [data-fpa-mark-palette] img { display: block; width: 76px; height: 24px; flex: 0 0 auto; object-fit: contain; }
.fpa-asm-palette > [data-fpa-mark-palette] span { white-space: nowrap; }
@media (pointer: coarse) {
  .fpa-asm-palette > [data-fpa-mark-palette] { height: 44px; min-height: 44px; }
}

/* FPA control migration: retain object-list and underline-tab roles, not another density. */
.fpa-asm .fpa-asm-side .fpa-asm-layer { height: var(--ssa-control); min-height: var(--ssa-control); padding: 4px 6px; font-size: var(--ssa-control-font); line-height: var(--ssa-control-line); }
.fpa-asm .fpa-asm-inspector-nav .fds-btn { border-radius: 0; padding-block: 0; }

/* FDS extension: assembly resource cards retain a graphical preview area. */
.fpa-overview-nav { padding: 16px; margin-block: 0 24px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-lg); background: var(--fds-bg-panel); }
.fpa-overview-nav:empty { display: none; }
.fpa-overview-nav-count { margin-inline-start: 8px; color: var(--fds-text-muted); font-variant-numeric: tabular-nums; font-weight: 400; }
.fpa-overview-section { margin-block: 24px; }
.fpa-overview-section h2,.fpa-overview-section summary { display: flex; align-items: center; gap: 10px; margin-block: 0 16px; font-size: 14px; color: var(--fds-text-primary); }
.fpa-overview-section summary { display: list-item; }
.fpa-overview-count { display: inline-block; margin-inline-start: 8px; padding: 2px 7px; border-radius: var(--fds-radius-sm); background: var(--fds-bg-muted); color: var(--fds-text-secondary); font-size: 12px; font-weight: 400; font-variant-numeric: tabular-nums; }
.fpa-overview-grid { grid-template-columns: repeat(auto-fill,minmax(min(100%,240px),1fr)); gap: 20px; }
.fpa-overview-card { border-color: var(--fds-border); border-radius: var(--fds-radius-lg); transition: border-color var(--fds-fast),box-shadow var(--fds-fast); }
.fpa-overview-card:hover { border-color: var(--fds-border-strong); box-shadow: var(--fds-shadow-1); }
.fpa-overview-card:focus-visible { outline-color: var(--fds-focus); }
.fpa-overview-visual { position: relative; aspect-ratio: 4 / 3; padding: 12px; border-bottom: 1px solid var(--fds-border); background: var(--fds-bg-page); }
.fpa-overview-visual img { position: absolute; inset: 12px; width: calc(100% - 24px); height: calc(100% - 24px); min-height: 0; min-width: 0; }
.fpa-overview-placeholder { width: 36px; height: 36px; border: 1px solid var(--fds-border); border-radius: var(--fds-radius-md); background: var(--fds-bg-muted); }
.fpa-overview-caption { padding: 16px; gap: 6px; flex: 1; }
.fpa-overview-caption strong { font-size: 16px; font-weight: 600; overflow-wrap: anywhere; }
.fpa-overview-caption .fds-meta { margin: 0; font-size: 12px; }
.fpa-overview-code { color: var(--fds-text-muted); overflow-wrap: anywhere; }
.fpa-overview-open { border-top: 1px solid var(--fds-border); padding-top: 12px; margin-top: 6px; font-size: 12px; color: var(--fds-text-primary); font-weight: 500; }
.fpa-overview-empty { padding: 56px 24px; text-align: center; border: 1px dashed var(--fds-border); border-radius: var(--fds-radius-lg); background: var(--fds-bg-panel); }
.fpa-overview-empty h2 { margin: 0 0 12px; font-size: 16px; }
.fpa-overview-empty p { margin: 0; color: var(--fds-text-secondary); font-size: 13px; }
@media(max-width:520px) { .fpa-overview-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; } .fpa-overview-visual { aspect-ratio: 1; padding: 8px; } .fpa-overview-visual img { inset: 8px; width: calc(100% - 16px); height: calc(100% - 16px); } .fpa-overview-caption { padding: 12px; } .fpa-overview-caption strong { font-size: 14px; } }