:root{--bg:#fafbfc;--surface:#fff;--border:#e4e7eb;--border-hover:#cbd2d9;--text:#1f2937;--text-muted:#6b7280;--text-subtle:#9ca3af;--primary:#3b82f6;--primary-hover:#2563eb;--primary-light:#dbeafe;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--shadow-sm:0 1px 2px #00000008;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -2px #00000008;--radius:8px;--radius-sm:6px;--font:"Inter", -apple-system, sans-serif;--mono:"JetBrains Mono", monospace}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);height:100%;color:var(--text);font-family:var(--font)}button{font-family:inherit}#app{flex-direction:column;height:100vh;display:flex}#header{background:var(--surface);border-bottom:1px solid var(--border);z-index:100;flex-shrink:0;align-items:center;gap:16px;height:56px;padding:0 20px;display:flex}.logo{color:var(--text);align-items:center;gap:10px;font-size:18px;font-weight:700;display:flex}.logo-icon{background:var(--primary);color:#fff;border-radius:6px;justify-content:center;align-items:center;width:26px;height:26px;font-size:13px;font-weight:700;display:flex}.hdr-right{align-items:center;gap:8px;margin-left:auto;display:flex}.hdr-btn{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);width:34px;height:34px;color:var(--text-muted);cursor:pointer;justify-content:center;align-items:center;font-size:16px;transition:all .15s;display:flex}.hdr-btn:hover{background:var(--bg);color:var(--text);border-color:var(--border-hover)}.hdr-btn.active{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}#body-area{flex:1;display:flex;overflow:hidden}#sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:280px;display:flex;overflow-y:auto}.sidebar-section{border-bottom:1px solid var(--border);padding:16px 18px}.section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;font-size:11px;font-weight:600}#main{background:#f3f4f6;flex:1;position:relative;overflow:hidden}#canvas-wrap{cursor:grab;position:absolute;inset:0;overflow:hidden}#canvas-wrap.dragging{cursor:grabbing}#pyr-canvas{image-rendering:pixelated;position:absolute;top:0;left:0}.field{margin-bottom:12px}.field:last-child{margin-bottom:0}.field label{color:var(--text);margin-bottom:4px;font-size:12px;font-weight:500;display:block}.field input[type=text],.field input[type=number],.field input[type=password],.field select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);width:100%;color:var(--text);padding:7px 10px;font-size:13px;transition:border-color .15s,box-shadow .15s}.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light);outline:none}.field-row{grid-template-columns:1fr 1fr;gap:10px;display:grid}.toggle-field{align-items:center;gap:10px;margin-bottom:10px;display:flex}.toggle{cursor:pointer;flex-shrink:0;width:40px;height:22px;position:relative}.toggle input{opacity:0;width:0;height:0}.toggle-slider{background:var(--border);border-radius:22px;transition:all .2s;position:absolute;inset:0}.toggle-slider:before{content:"";width:16px;height:16px;box-shadow:var(--shadow-sm);background:#fff;border-radius:50%;transition:all .2s;position:absolute;top:3px;left:3px}.toggle input:checked+.toggle-slider{background:var(--primary)}.toggle input:checked+.toggle-slider:before{transform:translate(18px)}.toggle-label{color:var(--text);font-size:12px}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;width:100%;padding:9px 14px;font-size:13px;font-weight:500;transition:all .15s}.btn+.btn{margin-top:8px}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--primary-hover);box-shadow:var(--shadow-md)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg);border-color:var(--border-hover)}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.mode-tabs{gap:6px;margin-bottom:10px;display:flex}.mode-tab{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;text-align:center;flex:1;padding:7px 4px;font-size:12px;font-weight:500;transition:all .15s}.mode-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.mode-tab:hover:not(.active){background:var(--bg)}.stats-grid{grid-template-columns:1fr 1fr;gap:8px;margin-top:8px;display:grid}.stat-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center;padding:10px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px;font-size:10px}.stat-value{color:var(--text);font-size:18px;font-weight:600;font-family:var(--mono)}.progress-wrap{display:none}.progress-wrap.visible{display:block}.progress-bar{background:#3b82f633;border-radius:2px;height:4px;margin-bottom:6px;overflow:hidden}.progress-fill{background:var(--primary);border-radius:2px;height:100%;transition:width .1s}.progress-txt{color:var(--primary);text-align:center;white-space:nowrap;text-overflow:ellipsis;max-width:260px;font-size:11px;overflow:hidden}#status-section{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:var(--radius);width:280px;box-shadow:var(--shadow-lg);z-index:10;pointer-events:none;background:#fffffff2;padding:10px 14px;position:absolute;bottom:16px;right:16px}#toolbar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:10;gap:3px;padding:6px;display:none;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}#toolbar.visible{display:flex}.tool-btn{border-radius:var(--radius-sm);width:34px;height:34px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;font-size:15px;transition:all .15s;display:flex}.tool-btn:hover{background:var(--bg);color:var(--text)}#hud{pointer-events:none;z-index:10;flex-direction:column;gap:6px;display:none;position:absolute;top:12px;right:12px}#hud.visible{display:flex}.hud-item{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:var(--mono);color:var(--text-muted);background:#fffffff2;padding:5px 10px;font-size:11px}.hud-item span{color:var(--primary);font-weight:500}#toast-container{z-index:9999;flex-direction:column;gap:8px;display:flex;position:fixed;top:70px;right:20px}.toast{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);pointer-events:auto;max-width:300px;padding:10px 14px;font-size:13px;animation:.25s slideIn}.toast.ok{border-left:3px solid var(--success)}.toast.err{border-left:3px solid var(--danger)}.toast.info{border-left:3px solid var(--primary)}.toast.warn{border-left:3px solid #f0a500}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:none}}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}#settings-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:200;background:#00000059;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#settings-overlay.open{display:flex}#settings-modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);flex-direction:column;width:460px;max-width:calc(100vw - 32px);max-height:calc(100vh - 64px);animation:.2s modalIn;display:flex}@keyframes modalIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}.modal-header{align-items:center;gap:10px;padding:18px 20px 0;display:flex}.modal-title{color:var(--text);flex:1;font-size:15px;font-weight:600}.modal-close{cursor:pointer;width:26px;height:26px;color:var(--text-muted);border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;font-size:16px;transition:all .15s;display:flex}.modal-close:hover{background:var(--bg);color:var(--text)}.modal-body{flex:1;padding:16px 20px;overflow-y:auto}.modal-footer{border-top:1px solid var(--border);justify-content:flex-end;gap:8px;padding:14px 20px;display:flex}.modal-status{border-radius:var(--radius-sm);margin-top:10px;padding:7px 10px;font-size:12px;display:none}.modal-status.ok{color:#065f46;background:#d1fae5;display:block}.modal-status.err{color:#991b1b;background:#fee2e2;display:block}.modal-status.info{background:var(--primary-light);color:var(--primary);display:block}.modal-divider{border:none;border-top:1px solid var(--border);margin:14px 0}.advanced-toggle{color:var(--text-muted);cursor:pointer;background:0 0;border:none;align-items:center;gap:4px;margin-bottom:10px;padding:0;font-size:11px;display:flex}.advanced-toggle:hover{color:var(--text)}#advanced-fields{display:none}#advanced-fields.open{display:block}.apikey-row{align-items:center;gap:6px;display:flex}.apikey-row input{flex:1}.apikey-row .btn-icon{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);cursor:pointer;color:var(--text-muted);flex-shrink:0;padding:7px 9px;font-size:13px;transition:all .15s}.apikey-row .btn-icon:hover{background:var(--bg);color:var(--text)}.key-hint{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);font-family:var(--mono);color:var(--text-muted);align-items:center;gap:8px;width:100%;margin-bottom:4px;padding:7px 10px;font-size:12px;display:inline-flex}.key-hint .change-key-btn{color:var(--primary);cursor:pointer;background:0 0;border:none;margin-left:auto;padding:0;font-family:inherit;font-size:11px}.key-hint .change-key-btn:hover{text-decoration:underline}#particle-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:200;background:#00000059;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#particle-overlay.open{display:flex}#particle-modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);flex-direction:column;width:520px;max-width:calc(100vw - 32px);max-height:calc(100vh - 64px);animation:.2s modalIn;display:flex}.color-entry{border-bottom:1px solid var(--border);grid-template-columns:28px 30px 1fr 76px 24px;align-items:center;gap:8px;padding:7px 0;display:grid}.color-entry:last-child{border-bottom:none}.color-swatch-wrap{border-radius:var(--radius-sm);border:2px solid var(--border);width:28px;height:28px;position:relative;overflow:hidden}.color-swatch-wrap input[type=color]{opacity:0;cursor:pointer;width:calc(100% + 8px);height:calc(100% + 8px);position:absolute;inset:-4px}.color-swatch{pointer-events:none;width:100%;height:100%}.entry-name-input{border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;font-size:12px;font-family:var(--font);padding:5px 8px}.entry-name-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light);outline:none}.tol-wrap{align-items:center;gap:4px;display:flex}.tol-wrap span{color:var(--text-muted);flex-shrink:0;font-size:10px}.tol-input{border:1px solid var(--border);border-radius:var(--radius-sm);text-align:right;width:42px;font-size:11px;font-family:var(--mono);padding:4px 5px}.tol-input:focus{border-color:var(--primary);outline:none}.btn-remove{cursor:pointer;width:22px;height:22px;color:var(--text-muted);background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;font-size:17px;line-height:1;display:flex}.btn-remove:hover{color:var(--danger);background:#fee2e2}.toggle-mini{cursor:pointer;flex-shrink:0;width:28px;height:16px;position:relative}.toggle-mini input{opacity:0;width:0;height:0;position:absolute}.toggle-mini-slider{background:var(--border);border-radius:16px;transition:all .2s;position:absolute;inset:0}.toggle-mini-slider:before{content:"";background:#fff;border-radius:50%;width:12px;height:12px;transition:all .2s;position:absolute;top:2px;left:2px;box-shadow:0 1px 2px #0003}.toggle-mini input:checked+.toggle-mini-slider{background:var(--primary)}.toggle-mini input:checked+.toggle-mini-slider:before{transform:translate(12px)}.size-entry{border-bottom:1px solid var(--border);grid-template-columns:1fr 72px 72px 24px;align-items:center;gap:8px;padding:6px 0;display:grid}.size-entry:last-child{border-bottom:none}.size-entry input{border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;font-size:12px;font-family:var(--font);padding:5px 7px}.size-entry input[type=number]{font-family:var(--mono)}.size-entry input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light);outline:none}.add-row-btn{width:100%;color:var(--text-muted);border:1px dashed var(--border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;margin-top:8px;padding:5px;font-size:11px;transition:all .15s}.add-row-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}#particle-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:260px;max-width:90vw;box-shadow:var(--shadow-lg);z-index:150;flex-direction:column;max-height:calc(100vh - 96px);display:none;position:fixed;top:72px;right:24px}#particle-panel.visible{display:flex}#particle-panel-header{border-bottom:1px solid var(--border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0;align-items:center;gap:8px;padding:9px 12px;display:flex}#particle-panel-header:active{cursor:grabbing}#particle-panel-header .panel-title{color:var(--text);flex:1;font-size:13px;font-weight:600}.panel-hdr-btn{cursor:pointer;width:24px;height:24px;color:var(--text-muted);background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;transition:all .15s;display:flex}.panel-hdr-btn:hover{background:var(--bg);color:var(--text)}#particle-panel-body{padding:10px 12px;overflow:auto}#grid-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:240px;box-shadow:var(--shadow-lg);z-index:150;flex-direction:column;display:none;position:fixed;top:72px;left:220px}#grid-panel.visible{display:flex}#grid-panel-header{border-bottom:1px solid var(--border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0;align-items:center;gap:8px;padding:9px 12px;display:flex}#grid-panel-header:active{cursor:grabbing}#grid-panel-body{flex-direction:column;gap:8px;padding:12px;display:flex}.results-table{border-collapse:collapse;white-space:nowrap;width:100%;font-size:11px}.results-table th{background:var(--bg);color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;border-bottom:2px solid var(--border);padding:5px 8px;font-size:10px;font-weight:600}.results-table th:first-child{text-align:left}.results-table th:not(:first-child){text-align:right}.results-table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:4px 8px}.results-table td:not(:first-child){text-align:right;font-family:var(--mono);font-size:11px}.results-table td.total-col{color:var(--primary);font-weight:700}.results-table tr:last-child td{border-bottom:none}.color-dot{vertical-align:middle;border:1px solid #0000001f;border-radius:50%;flex-shrink:0;width:10px;height:10px;margin-right:4px;display:inline-block}.panel-tabs{flex-shrink:0;gap:2px;display:flex}.panel-tab{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-muted);background:0 0;padding:3px 7px;font-size:10px;line-height:1.4;transition:all .15s}.panel-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.panel-tab:not(.active):hover{background:var(--bg);color:var(--text)}#particle-list-info{color:var(--text-muted);padding-bottom:6px;font-size:11px}#particle-view-list{min-width:340px}#particle-view-norm{min-width:420px}.norm-info{color:var(--text-muted);padding-bottom:8px;font-size:11px;line-height:1.5}.norm-section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;border-top:1px solid var(--border);margin:10px 0 4px;padding-top:6px;font-size:10px;font-weight:600}.norm-type{font-size:10px;font-weight:700;font-family:var(--mono);border-radius:3px;padding:1px 5px;display:inline-block}.astm-A{color:#1e40af;background:#e0e7ff}.astm-B{color:#854d0e;background:#fefce8}.astm-C{color:#991b1b;background:#fee2e2}.astm-D{color:#7e22ce;background:#fae8ff}.din-SS{color:#1e40af;background:#e0e7ff}.din-OA{color:#854d0e;background:#fefce8}.din-OS{color:#991b1b;background:#fee2e2}.din-OG{color:#7e22ce;background:#fae8ff}.norm-sev{font-size:11px;font-weight:700;font-family:var(--mono);background:var(--bg);color:var(--text-muted);border-radius:3px;padding:1px 6px;display:inline-block}.norm-sev.sev-low{color:#166534;background:#dcfce7}.norm-sev.sev-mid{color:#713f12;background:#fef9c3}.norm-sev.sev-high{color:#991b1b;background:#fee2e2}.norm-badge{color:#065f46;vertical-align:middle;background:#d1fae5;border-radius:3px;margin-left:2px;padding:0 4px;font-size:9px;font-weight:600;display:inline-block}.norm-subtabs{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:2px;margin-bottom:8px;padding-bottom:8px;display:flex}.norm-subtab{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-muted);background:0 0;padding:3px 8px;font-size:10px;line-height:1.4;transition:all .15s}.norm-subtab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.norm-subtab:not(.active):hover{background:var(--bg);color:var(--text)}#canvas-spinner{pointer-events:none;z-index:5;flex-direction:column;justify-content:center;align-items:center;gap:14px;display:none;position:absolute;inset:0}#canvas-spinner.visible{display:flex}.spinner-ring{border:4px solid #3b82f633;border-top-color:var(--primary);border-radius:50%;width:48px;height:48px;animation:.75s linear infinite spin}.spinner-label{color:var(--text-muted);font-size:13px}@keyframes spin{to{transform:rotate(360deg)}}.canvas-placeholder{color:var(--text-subtle);flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex;position:absolute;inset:0}.canvas-placeholder-icon{opacity:.25;font-size:48px}.canvas-placeholder-text{font-size:14px}.meas-source-row{border-radius:var(--radius-sm);background:var(--surface);border:1px solid var(--border);align-items:center;gap:5px;margin-bottom:3px;padding:3px 4px;font-size:11px;display:flex}.meas-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.meas-row-label{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.meas-row-id{font-family:var(--mono);color:var(--text-subtle);flex-shrink:0;font-size:9px}.meas-del-btn{cursor:pointer;color:var(--text-subtle);background:0 0;border:none;flex-shrink:0;padding:0 2px;font-size:10px;line-height:1;transition:color .15s}.meas-del-btn:hover{color:var(--danger)}#meas-canvas{z-index:10;width:100%;height:100%;position:absolute;inset:0}.mode-radio-label{cursor:pointer;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--surface);-webkit-user-select:none;user-select:none;align-items:flex-start;gap:10px;padding:8px 10px;transition:border-color .15s,background .15s;display:flex}.mode-radio-label:hover{border-color:var(--primary);background:var(--primary-light)}.mode-radio-active{border-color:var(--primary)!important;background:var(--primary-light)!important}.mode-radio-label input[type=radio]{accent-color:var(--primary);flex-shrink:0;margin-top:3px}.mode-radio-icon{flex-shrink:0;font-size:18px;line-height:1.3}.mode-radio-label strong{color:var(--text);font-size:13px;display:block}.mode-radio-desc{color:var(--text-muted);margin-top:1px;font-size:11px;line-height:1.4;display:block}