:root{--bg-app: #f4f6f8;--bg-surface: #ffffff;--bg-elevated: #eef2f5;--bg-inset: #e7edf2;--bg-input: #f8fafc;--bg-hover: rgba(71, 85, 105, .1);--bg-active: rgba(181, 112, 40, .1);--text-primary: #1f2937;--text-secondary: #475569;--text-muted: #64748b;--text-dim: #94a3b8;--border: #d7dee7;--border-subtle: rgba(100, 116, 139, .22);--accent: #b57028;--accent-hover: #c67d31;--accent-dim: rgba(181, 112, 40, .12);--accent-ring: rgba(181, 112, 40, .3);--color-green: #23864f;--color-red: #c23a3a;--color-orange: #b96a1f;--color-purple: #7c46ad;--color-cyan: #0f7a8b;--color-amber: #9a5f11;--color-lime: #5b861b;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 6px 18px rgba(15, 23, 42, .1);--shadow-lg: 0 14px 34px rgba(15, 23, 42, .14);--transition-fast: .12s ease;--transition: .2s ease;--transition-slow: .3s ease;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica 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#2d8a4e8c}}.btn--ghost{background:transparent;border-color:transparent}.btn--ghost:hover{background:var(--bg-hover)}.btn--icon{padding:6px}.btn svg,.btn .btn-icon{width:14px;height:14px;flex-shrink:0}.toggle{display:flex;align-items:center;gap:10px;cursor:pointer;padding:2px 0}.toggle__track{width:28px;height:16px;border-radius:var(--radius-full);background:var(--text-dim);position:relative;transition:background var(--transition-fast);flex-shrink:0;border:none;cursor:pointer;padding:0}.toggle__track[aria-checked=true]{background:var(--accent)}.toggle__thumb{position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast)}.toggle__track[aria-checked=true] .toggle__thumb{transform:translate(12px)}.toggle__label{font-size:var(--text-sm);color:var(--text-secondary);transition:color var(--transition-fast)}.toggle:hover 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var(--transition-fast);appearance:textfield;-moz-appearance:textfield}.slider-input__number::-webkit-outer-spin-button,.slider-input__number::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.slider-input__number:focus{outline:none;border-color:var(--accent);background:var(--bg-elevated)}.slider-input__unit{font-size:var(--text-2xs);color:var(--text-muted);width:22px}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:2px;background:var(--bg-elevated);outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid var(--bg-surface);transition:background var(--transition-fast)}input[type=range]::-webkit-slider-thumb:hover{background:var(--accent-hover)}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid 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var(--transition-fast);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown__item-meta{font-size:var(--text-2xs);font-family:var(--font-mono);color:var(--text-dim);justify-self:end}.dropdown__item-main{display:flex;align-items:center;gap:8px;min-width:0}.dropdown__item .dropdown__status{justify-self:start}.dropdown__empty{padding:10px 12px;font-size:var(--text-sm);color:var(--text-muted);display:flex;align-items:center;justify-content:space-between;gap:8px}.dropdown__retry{border:1px solid var(--border);background:var(--bg-hover);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:var(--text-xs);padding:3px 8px;cursor:pointer}.dropdown__retry:hover{background:var(--bg-active);color:var(--text-primary)}.dropdown__status{font-size:var(--text-2xs);line-height:1;padding:2px 6px;border-radius:999px;text-transform:lowercase;border:1px solid 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var(--transition-fast);color:var(--text-secondary)}.section__header:hover{background:var(--bg-hover)}.section__arrow{width:12px;height:12px;color:var(--text-dim);transition:transform var(--transition-fast);flex-shrink:0}.section__arrow.open{transform:rotate(90deg)}.section__icon{color:var(--text-muted)}.section__icon svg{width:14px;height:14px}.section__title{flex:1;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.section__badge{font-size:var(--text-2xs);font-family:var(--font-mono);background:var(--bg-elevated);color:var(--text-muted);padding:2px 6px;border-radius:var(--radius-full)}.section__body{padding:0 12px 10px;display:flex;flex-direction:column;gap:6px}.sidebar__hint{font-size:10px;color:var(--text-muted);font-style:italic;margin-bottom:4px;padding:3px 6px;background:var(--accent-dim);border-radius:var(--radius-sm);border-left:2px solid var(--accent)}.layer-list__controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.layer-list__toggle-all{font-size:10px;color:var(--accent);background:none;border:none;cursor:pointer;transition:color var(--transition-fast);padding:0}.layer-list__toggle-all:hover{color:var(--accent-hover)}.layer-list__counter{font-size:10px;color:var(--text-muted)}.layer-list__items{max-height:176px;overflow-y:auto;overscroll-behavior:contain;overflow-anchor:none;margin:0 -4px;display:flex;flex-direction:column;gap:1px}.layer-item{display:flex;align-items:center;gap:8px;width:100%;padding:4px 8px;border:none;background:none;text-align:left;font:inherit;cursor:pointer;border-radius:var(--radius-sm);transition:background var(--transition-fast)}.layer-item:hover{background:var(--bg-hover)}.layer-item__name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary);font-size:var(--text-sm)}.layer-item__count{font-size:10px;font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--text-dim)}.entity-type-bar{width:32px;height:4px;border-radius:2px;background:var(--bg-inset);flex-shrink:0;overflow:hidden}.entity-type-bar__fill{height:100%;border-radius:2px;background:var(--accent);min-width:2px}.sidebar__field{display:flex;flex-direction:column;gap:4px;margin-top:6px}.sidebar__field-label{font-size:11px;color:var(--text-dim)}.sidebar__unit-row{display:flex;gap:3px}.sidebar__unit-btn{padding:3px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text-secondary);font-size:11px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.sidebar__unit-btn:hover{border-color:var(--accent);color:var(--text-primary)}.sidebar__unit-btn--active{background:var(--accent);border-color:var(--accent);color:var(--text-on-accent, #fff)}.sidebar__unit-btn--active:hover{background:var(--accent-hover, var(--accent))}.sidebar__number-input{width:100%;padding:4px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text-primary);font-size:12px}.viewer{width:100%;height:100%;background:#fff;position:relative;overflow:hidden}.viewer__empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.viewer__empty-content{text-align:center;color:var(--text-dim)}.viewer__empty-icon{width:80px;height:80px;margin:0 auto 16px;color:var(--border)}.viewer__empty-title{font-size:var(--text-base);font-weight:500;color:var(--text-muted);margin-bottom:6px}.viewer__empty-subtitle{font-size:var(--text-sm);color:var(--text-dim)}.viewer__zoom-controls{position:absolute;top:12px;right:12px;display:flex;flex-direction:row;align-items:center;gap:4px;z-index:10}.viewer__zoom-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#ffffffd9;border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:0;box-shadow:var(--shadow-sm)}.viewer__zoom-btn:hover{background:var(--bg-surface);color:var(--text-primary)}.viewer__zoom-btn svg{width:14px;height:14px}.viewer__zoom-btn:disabled{opacity:.45;cursor:not-allowed}.viewer__rotate-menu,.viewer__measure-menu{position:relative}.viewer__measure-trigger{font-weight:700;font-size:12px}.viewer__measure-popover{position:absolute;right:0;top:36px;min-width:0;padding:4px;background:#fffffffa;border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:row;gap:3px;z-index:20;align-items:center}.viewer__measure-item{border:1px solid transparent;background:#ffffffd9;color:var(--text-primary);width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;cursor:pointer;padding:0}.viewer__measure-item:hover{background:var(--bg-hover);border-color:var(--border)}.viewer__measure-item--active{background:#2563eb1a;color:#1d4ed8;border-color:#2563eb73}.viewer__measure-item--danger{color:#b91c1c}.viewer__measure-item svg,.viewer__measure-trigger svg{width:16px;height:16px}.viewer__rotate-trigger{position:relative;z-index:2}.viewer__rotate-popover{position:absolute;right:0;top:36px;display:flex;align-items:center;background:#ffffffeb;border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);overflow:hidden;opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity var(--transition-fast),transform var(--transition-fast)}.viewer__rotate-menu:hover .viewer__rotate-popover,.viewer__rotate-menu:focus-within .viewer__rotate-popover{opacity:1;transform:translateY(0);pointer-events:auto}.viewer__rotate-popover--open{opacity:1;transform:translateY(0);pointer-events:auto}.viewer__rotate-mini{border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:6px 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