.fit-checker{--color-bg:#fff;--color-bg-subtle:#f5f7fa;--color-navy:#1a2b4c;--color-muted:#5a6b81;--color-blue:#06c;--color-blue-light:#4a90d9;--color-blue-soft:#e8f2fc;--color-border:#d4dde8;--color-pastel-clio:#e8c4c4;--color-text:#1a2b4c}.kfc-build-badge{z-index:9999;color:var(--color-muted);border:1px solid var(--color-border);pointer-events:none;opacity:.8;background:#ffffffe6;border-radius:4px;padding:2px 7px;font-family:ui-monospace,Cascadia Code,monospace;font-size:9px;font-weight:600;position:fixed;bottom:6px;left:6px}.fit-checker,.fit-checker *,.fit-checker :before,.fit-checker :after{box-sizing:border-box}.fit-checker h1,.fit-checker h2,.fit-checker h3,.fit-checker p{margin:0}.kfc-container,.kfc-root{width:100%;min-width:0;max-width:100%;display:block}.kfc-root{height:100%}.kfc-container .fit-checker{width:100%;max-width:100%;margin:0}.fit-checker{background:var(--color-bg);-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased;flex-direction:column;width:100%;max-width:100%;height:clamp(520px,76vh,820px);max-height:82vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:14px;line-height:1.4;display:flex;position:relative;overflow:clip}.optimize-badge{color:var(--color-muted);white-space:nowrap;font-size:10px;font-weight:600}.optimize-btn:disabled{opacity:.45;cursor:not-allowed}.optimize-toast--overlay{z-index:13;text-align:center;color:var(--color-navy);pointer-events:none;background:#fff8ebf5;border:1px solid #f0d9a8;border-radius:8px;max-width:90%;margin:0;padding:6px 14px;font-size:12px;font-weight:600;position:absolute;top:8px;left:50%;transform:translate(-50%);box-shadow:0 2px 8px #0020401a}.scene-wrapper{flex:1;min-height:0;position:relative;overflow:hidden}.sdf-legend{z-index:12;border:1px solid var(--color-border);pointer-events:none;color:var(--color-muted);background:#ffffffeb;border-radius:10px;padding:8px 10px;font-size:11px;line-height:1.35;position:absolute;bottom:12px;left:12px;box-shadow:0 2px 8px #00204014}.sdf-legend__title{color:var(--color-text);cursor:pointer;pointer-events:auto;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;margin-bottom:6px;font-weight:600;display:flex}.sdf-legend__title input{accent-color:var(--color-blue);margin:0}.sdf-legend__bar[aria-hidden=true],.sdf-legend__labels[aria-hidden=true]{opacity:.45}.sdf-legend__bar{gap:2px;margin-bottom:4px;display:flex}.sdf-legend__swatch{border:1px solid var(--color-border);border-radius:2px;width:28px;height:10px}.sdf-legend__labels{color:var(--color-muted);justify-content:space-between;gap:4px;font-size:10px;display:flex}.mesh-legend{z-index:4;border:1px solid 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span{line-height:1;display:block;transform:translateY(-.5px)}.scene-controls-overlay__action-btn--danger{color:#c0392b;border-color:#f5c6c0}.scene-controls-overlay__action-btn:active{background:var(--color-blue-soft)}.scene-controls-overlay__row{pointer-events:none;justify-content:space-between;align-items:center;gap:6px;display:flex}.scene-controls-overlay__center{text-align:center;flex:1;min-width:0}.item-icon{justify-content:center;align-items:center;display:inline-flex}.item-icon--thumb{object-fit:contain;border-radius:6px}.conveyor-item__icon{width:100%;height:100%}.scene-boot-overlay{z-index:2;color:var(--color-navy);pointer-events:none;text-align:center;background:#f5f7faeb;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:0 16px;font-size:13px;font-weight:600;display:flex;position:absolute;inset:0}.scene-boot-overlay--error{color:#7f1d1d;background:#fff5f5f0}.scene-boot-overlay__spinner{border:2px solid #1a2b4c26;border-top-color:var(--color-blue);border-radius:50%;width:22px;height:22px;animation:.9s linear infinite kfcspin}@keyframes kfcspin{to{transform:rotate(360deg)}}.trunk-scene-container canvas{display:block;width:100%!important;height:100%!important}.drag-overlay{cursor:grabbing;z-index:10;position:absolute;inset:0}.onboarding-hint{border:1px solid var(--color-blue-light);color:var(--color-navy);text-align:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:20;white-space:nowrap;text-overflow:ellipsis;background:#fffffff2;border-radius:20px;align-items:center;gap:10px;max-width:90%;padding:8px 14px 8px 16px;font-size:12px;display:flex;position:absolute;bottom:12px;left:50%;overflow:hidden;transform:translate(-50%)}.hint-close{color:var(--color-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:0 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.conveyor-item__canvas--create{border-style:dashed;border-color:var(--color-blue-light);background:var(--color-blue-soft)}.conveyor-item__create-icon{color:var(--color-blue);font-size:22px;font-weight:700;line-height:1}.conveyor-item--disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.conveyor-item__canvas{border:1px solid var(--color-border);background:#fff;border-radius:8px;justify-content:center;align-items:center;width:72px;height:72px;transition:border-color .15s,box-shadow .15s;display:flex;position:relative;overflow:hidden}.conveyor-item:hover .conveyor-item__canvas{border-color:var(--color-blue-light);box-shadow:0 0 8px #06c3}.conveyor-item__info{flex-direction:column;align-items:center;gap:1px;display:flex}.conveyor-item__name{color:var(--color-navy);text-align:center;white-space:nowrap;text-overflow:ellipsis;max-width:78px;font-size:9px;font-weight:600;overflow:hidden}.conveyor-fit-badge{box-sizing:border-box;pointer-events:none;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;display:flex;position:absolute;top:4px;right:4px;box-shadow:0 1px 3px #00000026}.conveyor-fit-badge__glyph{justify-content:center;align-items:center;width:100%;height:100%;font-size:11px;font-weight:700;line-height:1;display:flex}.conveyor-fit-badge--loading{border:2px solid var(--color-muted);border-top-color:var(--color-blue);background:#fff;animation:.7s linear infinite conveyor-fit-spin}.conveyor-fit-badge--valid{color:#fff;background:#2e7d32}.conveyor-fit-badge--tight{color:#fff;background:#ef6c00}.conveyor-fit-badge--invalid{color:#fff;background:#c62828}.conveyor-fit-badge--invalid .conveyor-fit-badge__glyph{font-size:10px}@keyframes conveyor-fit-spin{to{transform:rotate(360deg)}}.scene-action-buttons--item{flex-wrap:wrap;max-width:min(100%,340px)}.scene-action-buttons__fix-label{color:var(--color-text);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:6px;font-size:11px;font-weight:600;display:flex}.scene-action-buttons__fix-label input{accent-color:var(--color-blue);margin:0}.scene-action-buttons__fix-label input:disabled{cursor:not-allowed;opacity:.5}.scene-action-buttons__fix-label:has(input:disabled){cursor:not-allowed;opacity:.65}.conveyor-item__dims{color:var(--color-muted);text-align:center;white-space:nowrap;font-size:8px}.conveyor-empty{color:var(--color-muted);white-space:nowrap;padding:20px;font-size:12px}.category-row{background:var(--color-bg);border-top:1px solid var(--color-border);flex-shrink:0;align-items:center;gap:8px;min-height:40px;padding:6px 8px;display:flex}.category-search{border:1px solid var(--color-border);background:#fff;border-radius:14px;flex-shrink:0;align-items:center;gap:4px;min-width:0;height:28px;max-height:28px;margin:0;padding:0 8px;display:flex;overflow:hidden}.category-search__icon{color:var(--color-muted);flex-shrink:0;font-size:12px;line-height:1}.category-search__input{width:72px;color:var(--color-navy);appearance:none;min-width:0;height:100%;min-height:0;max-height:28px;box-shadow:none;background:0 0;border:none;outline:none;margin:0;padding:0;font-size:11px;line-height:1}.category-search__input::-webkit-search-decoration{appearance:none;display:none}.category-search__input::-webkit-search-cancel-button{appearance:none;display:none}.category-search__input::-webkit-search-results-button{appearance:none;display:none}.category-search__input::placeholder{color:var(--color-muted)}.category-bar{flex:1;align-items:center;gap:5px;min-width:0;display:flex}.cat-chip{border:1px solid var(--color-border);height:28px;color:var(--color-muted);cursor:pointer;white-space:nowrap;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border-radius:16px;flex-shrink:0;align-items:center;gap:4px;margin:0;padding:0 10px;font-size:11px;line-height:1;transition:all .15s;display:flex}.cat-chip:hover{border-color:var(--color-blue-light);color:var(--color-blue)}.cat-chip--active{background:var(--color-blue-soft);border-color:var(--color-blue);color:var(--color-blue)}.cat-icon{font-size:13px}.cat-label{font-size:10px}.rotation-row{background:var(--color-bg-subtle);border-top:1px solid var(--color-border);flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;padding:6px 12px 8px;display:flex}.rotation-column{flex-direction:row;flex-shrink:0;align-items:center;gap:6px;display:flex}.rotation-row__center{text-align:center;flex:1;padding:0 4px}.rotation-hint{color:var(--color-muted);white-space:nowrap;text-overflow:ellipsis;font-size:10px;display:block;overflow:hidden}.move-pad{touch-action:manipulation;flex-direction:column;align-items:center;gap:2px;display:flex}.move-pad--disabled .move-pad__btn{opacity:.35;pointer-events:none}.move-pad__row{align-items:center;gap:4px;display:flex}.move-pad__btn{border:1px solid var(--color-border);width:36px;height:32px;color:var(--color-navy);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;background:#fff;border-radius:8px;padding:0;font-size:16px;line-height:1}.move-pad__btn:active:not(:disabled){background:var(--color-blue-soft);color:var(--color-blue)}.move-pad__btn--up,.move-pad__btn--down{width:40px}.move-pad__hint{color:var(--color-muted);margin-top:1px;font-size:9px}.rotation-step-btns{touch-action:manipulation;flex-direction:column;justify-content:center;align-items:center;gap:4px;display:flex}.rotation-step-btns--disabled .rotation-step-btns__btn{opacity:.35;pointer-events:none}.rotation-step-btns__btn{border:1px solid var(--color-border);width:30px;height:36px;color:var(--color-blue);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;background:#fff;border-radius:8px;padding:0;font-size:15px;line-height:1}.rotation-step-btns__btn:active:not(:disabled){background:var(--color-blue-soft);color:var(--color-blue)}.rotation-step-btns--x .rotation-step-btns__btn{width:32px;height:38px}.rotation-step-btns--yaw .rotation-step-btns__btn{width:32px;height:34px}.rotation-wheel{flex-direction:column;align-items:center;gap:3px;display:flex}.rotation-wheel--disabled .rotation-wheel__disc{opacity:.35}.rotation-wheel__disc{touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none;overflow:hidden}.rotation-wheel--yaw .rotation-wheel__disc{border-radius:50%;width:88px;height:40px}.rotation-wheel--pitch 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