:root{color-scheme:light;--bg-app: #eef1f5;--bg-toolbar-rail: #f4f6f9;--bg-toolbar-drawer: #f8fafc;--bg-panel: #f8fafc;--bg-input: #ffffff;--line-soft: #d6dde7;--line-strong: #b8c3d2;--text-main: #243247;--text-muted: #607086;--accent: #2f6fb2;--accent-2: #2a5e95}*{box-sizing:border-box}html,body,#app{margin:0;width:100%;height:100%;overflow:hidden;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:var(--bg-app);color:var(--text-main)}.app-shell{display:grid;grid-template-columns:292px 1fr 360px;grid-template-rows:1fr 30px;width:100%;height:100%}.toolbar{grid-column:1;grid-row:1;border-right:1px solid var(--line-soft);background:var(--bg-toolbar-drawer);overflow:hidden;display:flex;flex-direction:column}.toolbar-title{flex-shrink:0;padding:10px 12px 8px;font-size:.9rem;font-weight:700;letter-spacing:.04em;color:var(--text-main);border-bottom:1px solid var(--line-soft);background:var(--bg-toolbar-rail)}.toolbar-title sup{font-size:.55em;font-weight:600;letter-spacing:.08em;color:var(--text-muted);margin-left:1px}.toolbar-shell{display:grid;grid-template-columns:56px 1fr;flex:1;min-height:0}.category-rail{border-right:1px solid var(--line-soft);background:var(--bg-toolbar-rail);padding:8px 0;display:flex;flex-direction:column;gap:2px}.category-btn{position:relative;width:100%;height:52px;border:none;border-radius:0;background:transparent;color:var(--text-muted);cursor:pointer;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;transition:background .15s ease,color .15s ease;z-index:1}.category-btn:hover{background:#ffffff8c;color:var(--text-main)}.category-btn.active{background:var(--bg-toolbar-drawer);color:var(--text-main);width:calc(100% + 1px);z-index:2}.category-btn.active:before{content:"";position:absolute;left:0;top:16%;height:68%;width:2.5px;border-radius:0 2px 2px 0;background:var(--accent)}.category-btn-icon{width:18px;height:18px;opacity:.82}.category-btn-icon svg{width:100%;height:100%}.category-btn.active .category-btn-icon{opacity:1}.category-btn-label{font-size:.62rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.tool-drawer{display:grid;grid-template-rows:auto 1fr auto;gap:10px;padding:12px 10px;background:var(--bg-toolbar-drawer);min-width:0}.tool-drawer-title{font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--text-muted);padding:0 2px 6px;border-bottom:1px solid var(--line-soft)}.tool-grid{overflow-y:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;align-content:start;padding-right:2px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.tool-grid::-webkit-scrollbar{width:6px}.tool-grid::-webkit-scrollbar-track{background:transparent;border-radius:6px}.tool-grid::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}.tool-grid::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.tool-btn{border:1px solid var(--line-soft);border-radius:10px;background:var(--bg-input);color:var(--text-main);cursor:pointer;font-weight:600;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease}.tool-btn:hover{background:#f0f4f9;border-color:var(--line-strong);box-shadow:0 1px 3px #2432470f}.tool-btn.active{border-color:#8cabd1;box-shadow:0 0 0 1px #b7cbe3 inset;background:#edf4fb}.tool-btn.tool-placeholder{border-color:var(--line-soft);background:var(--bg-toolbar-drawer);color:var(--text-muted);opacity:.78}.tool-tile{min-height:68px;padding:8px 6px;display:grid;grid-template-rows:1fr auto;align-items:center;justify-items:center;gap:6px}.tool-tile-icon{width:28px;height:28px;border-radius:7px;border:1px solid var(--line-soft);background:var(--bg-panel);color:var(--accent-2);display:grid;place-items:center;font-size:.64rem;font-weight:700;letter-spacing:.02em}.tool-btn:hover .tool-tile-icon{border-color:var(--line-strong)}.tool-btn.active .tool-tile-icon{border-color:#8cabd1;background:#dfeaf6;color:var(--accent)}.tool-tile-icon svg{width:18px;height:18px}.tool-tile-label{font-size:.7rem;text-align:center;line-height:1.2;color:var(--text-main)}.saved-assembly-tile{position:relative}.saved-assembly-btn{width:100%}.saved-assembly-remove{position:absolute;top:5px;right:5px;width:18px;height:18px;border:1px solid transparent;border-radius:999px;background:#3c4c6214;color:var(--text-muted);display:grid;place-items:center;padding:0;font-size:.7rem;line-height:1;font-weight:700;z-index:2;transition:background .15s ease,border-color .15s ease,color .15s ease}.saved-assembly-remove:hover{background:#c636361f;border-color:#c6363666;color:#c63636}.saved-assembly-label{width:100%;max-width:100%;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.saved-assembly-grid{max-height:712px;overflow-y:auto;padding-right:2px;scrollbar-width:thin;scrollbar-color:var(--line-strong) var(--bg-toolbar-rail)}.saved-assembly-grid::-webkit-scrollbar{width:6px}.saved-assembly-grid::-webkit-scrollbar-track{background:var(--bg-toolbar-rail);border-radius:6px}.saved-assembly-grid::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}.saved-assembly-grid::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.toolbar-footer{border-top:1px solid var(--line-soft);padding-top:10px;display:grid;gap:8px}.toolbar-file-actions{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:flex-start;gap:6px;align-self:start}.file-action-btn{width:100%;min-width:0}.toolbar-mini-btn{width:100%;min-height:30px;font-size:.72rem;padding:5px 10px}.toolbar-mini-btn.file-action-btn{width:100%;flex:1 1 100%;min-height:28px;padding:5px 10px}.toolbar-check{display:flex;align-items:center;gap:7px;font-size:.75rem;color:var(--text-muted);cursor:pointer;padding:2px 0;transition:color .15s ease}.toolbar-check:hover{color:var(--text-main)}.toolbar-check input[type=checkbox]{accent-color:var(--accent);transform:scale(1.08)}.viewport{position:relative;grid-column:2;grid-row:1;overflow:hidden;border-right:1px solid var(--line-soft);background:#1f2329}.grid-canvas,.gpu-canvas,.editor-layer{position:absolute;top:0;right:0;bottom:0;left:0}.grid-canvas{pointer-events:none}.editor-layer canvas{width:100%;height:100%}.controls{grid-column:3;grid-row:1;overflow-y:auto;padding:12px;background:var(--bg-panel);border-left:1px solid var(--line-soft)}.controls h2{margin:0 0 10px;font-size:1rem;letter-spacing:.04em;color:#2c425e}.controls h3{margin:8px 0 10px;font-size:.82rem;color:#3a5d83;letter-spacing:.04em;text-transform:uppercase}.panel-section{border:1px solid var(--line-soft);border-radius:10px;overflow:hidden;background:#fff;margin-bottom:10px}.panel-section-header{width:100%;border:none;border-bottom:1px solid var(--line-soft);background:#f3f6fa;color:#324761;padding:8px 10px;display:flex;align-items:center;gap:8px;cursor:pointer;text-align:left;font-size:.76rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.panel-section-indicator{width:12px;color:#6983a2;text-align:center;font-size:.7rem;font-family:IBM Plex Mono,monospace}.panel-section-title{flex:1}.panel-section-body{padding:10px}.panel-section.collapsed .panel-section-body{display:none}.panel-section.collapsed .panel-section-header{border-bottom:none}.layer-tree{display:grid;gap:6px}.layer-axis{display:grid;gap:4px}.layer-axis-head{display:grid;grid-template-columns:20px 1fr auto;align-items:center;gap:4px}.layer-toggle{width:20px;height:20px;border:1px solid #bec9d9;border-radius:6px;background:#fff;color:#607792;font-size:.66rem;font-family:IBM Plex Mono,monospace;padding:0}.layer-toggle:disabled{opacity:.35;cursor:default}.layer-axis-btn{border:1px solid #c2cddb;border-radius:7px;background:#fff;color:#344a64;padding:5px 7px;text-align:left;font-size:.75rem;font-weight:600;cursor:pointer}.layer-axis-btn.active{border-color:#8cabd1;box-shadow:0 0 0 1px #b7cbe3 inset;background:#edf4fb}.layer-count{min-width:20px;text-align:center;font-size:.67rem;color:#70839b;font-family:IBM Plex Mono,monospace}.layer-axis-body{display:grid;gap:4px;margin-left:20px}.layer-row{border:1px solid #c7d1df;border-radius:6px;background:#fff;color:#455b76;text-align:left;padding:4px 7px;font-size:.72rem;cursor:pointer}.layer-row.active{border-color:#7ea2cf;color:#274462;background:#edf4fb}.control-row{display:flex;gap:8px;margin-bottom:10px}button{border:1px solid #bcc8d8;background:#fff;color:#2f4057;padding:6px 9px;border-radius:8px;cursor:pointer;font-weight:600}button:hover{background:#f4f8fd}.control-block{display:grid;grid-template-columns:1fr auto;gap:5px 8px;margin-bottom:9px;align-items:center}.checkbox-block{grid-template-columns:1fr auto}.control-block input[type=range]{grid-column:1 / span 2;width:100%}.control-block label{color:var(--text-muted);font-size:.78rem}.control-block select,.control-block input[type=number],.control-block input[type=text]{width:100%;background:var(--bg-input);color:var(--text-main);border:1px solid #c4cfdd;border-radius:6px;padding:5px 6px;font-size:.78rem}.control-block input[type=checkbox]{transform:scale(1.08)}.value{font-family:IBM Plex Mono,Consolas,monospace;color:#30465f;font-size:.79rem}.muted{color:var(--text-muted);font-size:.76rem;line-height:1.35}.warning-note{margin-top:6px;padding:8px 9px;border:1px solid #d2c2a7;border-radius:7px;background:#fff9ef;color:#85623a;font-size:.76rem;line-height:1.32}.surface-editor{margin-top:2px}.panel-subtitle{margin:10px 0 7px;padding-top:8px;border-top:1px solid #dde4ee;font-size:.72rem;letter-spacing:.05em;color:#607694;text-transform:uppercase}.detector-plot-wrap{display:grid;grid-template-columns:1fr;gap:6px;margin:4px 0 12px}.detector-plot{width:100%;max-width:100%;height:auto;aspect-ratio:1 / 1;border:1px solid #c7d2df;border-radius:6px;background:#fff}.placement-param-box{position:absolute;min-width:128px;display:grid;grid-template-columns:1fr;gap:4px;padding:8px;border:1px solid #c5d2e1;border-radius:8px;background:#fff;box-shadow:0 8px 18px #1f2d4124;z-index:20}.placement-param-box label{font-size:.74rem;color:#5e738e}.placement-param-box input{width:100%;background:#fff;color:#293a50;border:1px solid #c3cfdd;border-radius:6px;padding:5px 6px}.context-menu{position:absolute;min-width:176px;padding:6px;border:1px solid #c2cfdf;border-radius:8px;background:#fff;box-shadow:0 10px 20px #1f2d4126;z-index:40;display:grid;gap:4px}.context-menu-title{padding:4px 6px 6px;color:#3d5573;font-size:.78rem;font-family:IBM Plex Mono,Consolas,monospace;border-bottom:1px solid #dee5ef;margin-bottom:2px}.context-menu-item{width:100%;text-align:left;border:1px solid #c2cfdf;background:#fff;color:#364d69;padding:6px 8px;border-radius:6px;font-size:.8rem}.context-menu-item:disabled{opacity:.45;cursor:not-allowed}.context-menu-divider{height:1px;background:#dee5ef;margin:2px 0}.context-menu-section-label{padding:2px 6px 1px;font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#8a9bb2}.context-menu-check{display:flex;align-items:center;gap:8px;padding:5px 6px;color:#4b627d;font-size:.8rem;cursor:pointer}.context-menu-check:hover{color:var(--text-main)}.status{grid-column:1 / span 3;grid-row:2;display:flex;align-items:center;padding:0 10px;border-top:1px solid var(--line-soft);font-size:.78rem;font-family:IBM Plex Mono,Consolas,monospace;color:#5f738b;background:#f3f6fa}.fatal{margin:0;padding:16px;white-space:pre-wrap;color:#a63f3f}@media(max-width:1380px){.app-shell{grid-template-columns:268px 1fr 328px}}.info-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:none;align-items:center;justify-content:center;padding:24px;box-sizing:border-box}.info-overlay.visible{display:flex}.info-overlay-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#24324759;cursor:pointer}.info-modal{position:relative;width:100%;max-width:520px;max-height:80vh;display:flex;flex-direction:column;background:var(--bg-panel);border:1px solid var(--line-soft);border-radius:12px;box-shadow:0 12px 40px #2432472e;overflow:hidden}.info-modal-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line-soft);background:var(--bg-toolbar-rail)}.info-modal-title{font-size:.85rem;font-weight:700;letter-spacing:.03em;color:var(--text-main)}.info-modal-close{width:28px;height:28px;border:1px solid var(--line-soft);border-radius:8px;background:var(--bg-input);color:var(--text-muted);cursor:pointer;font-size:1.1rem;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .15s ease,border-color .15s ease,color .15s ease}.info-modal-close:hover{background:#f0f4f9;border-color:var(--line-strong);color:var(--text-main)}.info-modal-tabs{flex-shrink:0;display:flex;gap:2px;padding:8px 12px 0;border-bottom:1px solid var(--line-soft);background:var(--bg-panel)}.info-modal-tab{padding:8px 12px;font-size:.72rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);background:transparent;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer;transition:color .15s ease,border-color .15s ease}.info-modal-tab:hover{color:var(--text-main)}.info-modal-tab.active{color:var(--accent-2);border-bottom-color:var(--accent-2)}.info-modal-body{flex:1;min-height:0;overflow-y:auto;padding:14px 16px;font-size:.8rem;line-height:1.5;color:var(--text-main);scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.info-modal-body::-webkit-scrollbar{width:6px}.info-modal-body::-webkit-scrollbar-track{background:transparent;border-radius:6px}.info-modal-body::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}.info-modal-body section{display:none}.info-modal-body section.active{display:block}.info-modal-body section+section{margin-top:0}.info-modal-body h3{font-size:.75rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);margin:0 0 8px}.info-modal-body p{margin:0 0 10px}.info-modal-body p:last-child{margin-bottom:0}.info-modal-body ul{margin:0 0 12px;padding-left:20px}.info-modal-body li{margin-bottom:4px}.info-modal-body li:last-child{margin-bottom:0}.info-modal-body code{font-size:.9em;font-family:ui-monospace,Cascadia Code,Source Code Pro,Menlo,monospace;background:#24324714;padding:1px 4px;border-radius:4px}.info-modal-body pre.cite-bibtex{font-size:.75rem;font-family:ui-monospace,Cascadia Code,Source Code Pro,Menlo,monospace;background:#2432470f;border:1px solid var(--line-soft);border-radius:6px;padding:10px 12px;margin:8px 0 0;overflow-x:auto;white-space:pre;line-height:1.4}.toolbar-file-footer{margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);display:flex;flex-direction:column;gap:6px}.toolbar-file-footer .tool-btn{width:100%}@media(max-width:1140px){.app-shell{grid-template-columns:248px 1fr;grid-template-rows:1fr minmax(230px,40vh) 30px}.toolbar{grid-column:1;grid-row:1}.viewport{grid-column:2;grid-row:1;border-right:none;min-height:48vh}.controls{grid-column:1 / span 2;grid-row:2;border-left:none;border-top:1px solid var(--line-soft)}.status{grid-column:1 / span 2;grid-row:3}}