:root{--bg:#0d0e0f;--bg-elevated:#16181b;--bg-input:#1d2024;--bg-input-hover:#25282c;--border:#2a2d32;--border-strong:#3a3d42;--text:#e8e8ea;--text-dim:#7a7d83;--text-faint:#4a4d52;--accent:#d4ff00;--accent-dim:#92b300;--danger:#ff4d4d;--grid:rgba(255, 255, 255, 0.03)}.tack-app,.tack-app *,.tack-app *::before,.tack-app *::after{box-sizing:border-box}.tack-app{height:100vh;height:100dvh;overflow:hidden;font-family:manrope,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:13px;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.tack-app .toolbar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--bg-elevated);border-bottom:1px solid var(--border);flex-wrap:nowrap;flex-shrink:0;min-height:52px}.tack-app .brand{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:-.01em;margin-right:4px;padding-right:12px;border-right:1px solid var(--border)}.tack-app .brand-mark{width:18px;height:18px;color:var(--accent);flex-shrink:0}.tack-app .brand-wordmark{font-family:jetbrains mono,ui-monospace,monospace;color:var(--accent);font-weight:500;letter-spacing:0}.tack-app button .hi{width:14px;height:14px;flex-shrink:0}.tack-app .toolbar-group{display:flex;gap:4px;padding-right:10px;border-right:1px solid var(--border)}.tack-app .toolbar-group:last-of-type{border-right:none}.tack-app .spacer{flex:1}.tack-app button{font-family:inherit;font-size:12px;font-weight:500;background:0 0;color:var(--text);border:1px solid var(--border);padding:6px 10px;border-radius:3px;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;line-height:1;min-height:28px}.tack-app button:hover:not(:disabled){background:var(--bg-input-hover);border-color:var(--border-strong)}.tack-app button:active:not(:disabled){transform:translateY(1px)}.tack-app button:disabled{opacity:.35;cursor:not-allowed}.tack-app button.primary{background:var(--accent);color:#0d0e0f;border-color:var(--accent);font-weight:600}.tack-app button.primary:hover:not(:disabled){background:#e2ff33;border-color:#e2ff33}.tack-app button.icon{padding:6px 8px;min-width:28px;justify-content:center}.tack-app button.flash{background:var(--accent);color:var(--bg);border-color:var(--accent)}.tack-app .workspace{flex:1;display:flex;overflow:hidden;min-height:0}.tack-app .sidebar{width:240px;background:var(--bg-elevated);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.tack-app .sidebar-header{padding:12px 14px 10px;font-size:10px;font-weight:700;letter-spacing:.12em;color:var(--text-dim);text-transform:uppercase;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.tack-app .sidebar-header .count{font-family:jetbrains mono,monospace;font-size:11px;color:var(--text-faint);letter-spacing:0}.tack-app .shapes-list{flex:1;overflow-y:auto;padding:6px}.tack-app .empty-state{padding:20px 14px;color:var(--text-faint);font-size:12px;line-height:1.5;text-align:center}.tack-app .shape-item{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:3px;cursor:pointer;border:1px solid transparent;margin-bottom:1px}.tack-app .shape-item:hover{background:var(--bg-input)}.tack-app .shape-item.active{background:var(--bg-input);border-color:var(--border-strong)}.tack-app .shape-color{width:10px;height:10px;border-radius:50%;flex-shrink:0;box-shadow:0 0 0 1px rgba(255,255,255,.1)}.tack-app .shape-label{flex:1;background:0 0;border:none;color:var(--text);font-family:inherit;font-size:12px;outline:none;padding:2px 4px;border-radius:2px;min-width:0}.tack-app .shape-label:focus{background:var(--bg);box-shadow:0 0 0 1px var(--accent)}.tack-app .shape-meta{font-family:jetbrains mono,monospace;font-size:10px;color:var(--text-dim);white-space:nowrap}.tack-app .shape-delete{background:0 0;border:none;padding:2px 4px;color:var(--text-faint);font-size:14px;cursor:pointer;opacity:0;line-height:1;min-height:0}.tack-app .shape-item:hover .shape-delete{opacity:1}.tack-app .shape-delete:hover{color:var(--danger)}.tack-app .help-panel{border-top:1px solid var(--border);padding:12px 14px;font-size:11px}.tack-app .help-panel summary{cursor:pointer;color:var(--text-dim);font-weight:600;font-size:10px;letter-spacing:.12em;text-transform:uppercase;list-style:none;display:flex;justify-content:space-between;align-items:center;user-select:none}.tack-app .help-panel summary::-webkit-details-marker{display:none}.tack-app .help-panel summary::after{content:'+';font-size:14px;font-family:jetbrains mono,monospace}.tack-app .help-panel[open] summary::after{content:'−'}.tack-app .help-panel dl{display:grid;grid-template-columns:auto 1fr;gap:4px 10px;margin-top:10px;color:var(--text-dim)}.tack-app .help-panel dt{font-family:jetbrains mono,monospace;font-size:10px;color:var(--text);white-space:nowrap}.tack-app .help-panel dd{font-size:11px}.tack-app kbd{font-family:jetbrains mono,monospace;background:var(--bg-input);border:1px solid var(--border);border-radius:2px;padding:1px 4px;font-size:10px}.tack-app .canvas-container{flex:1;position:relative;overflow:hidden;background-color:#0a0b0c;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:40px 40px;min-width:0}.tack-app #canvas{display:block;cursor:crosshair}.tack-app .dropzone{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--text-dim);pointer-events:none;transition:background .15s ease}.tack-app .dropzone.dragover{background:rgba(212,255,0,4%);box-shadow:inset 0 0 0 1px var(--accent)}.tack-app .dropzone-icon{width:48px;height:48px;border:1px dashed var(--text-faint);border-radius:4px;display:flex;align-items:center;justify-content:center;position:relative}.tack-app .dropzone-icon::before,.tack-app .dropzone-icon::after{content:'';position:absolute;background:var(--text-faint)}.tack-app .dropzone-icon::before{width:14px;height:1px}.tack-app .dropzone-icon::after{width:1px;height:14px}.tack-app .dropzone-title{font-size:13px;font-weight:500;color:var(--text)}.tack-app .dropzone-hint{font-size:11px;font-family:jetbrains mono,monospace;color:var(--text-faint);letter-spacing:.04em}.tack-app .status-bar{position:absolute;bottom:0;left:0;right:0;padding:6px 14px;background:rgba(13,14,15,.85);backdrop-filter:blur(8px);border-top:1px solid var(--border);font-family:jetbrains mono,monospace;font-size:11px;display:flex;gap:18px;color:var(--text-dim);pointer-events:none}.tack-app .status-bar .label{color:var(--text-faint);margin-right:4px}.tack-app .status-bar .value{color:var(--text)}.tack-app .status-bar .value.accent{color:var(--accent)}.tack-app .output-panel{width:380px;background:var(--bg-elevated);border-left:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.tack-app .output-header{padding:9px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.tack-app .output-header-title{font-size:10px;font-weight:700;letter-spacing:.12em;color:var(--text-dim);text-transform:uppercase}.tack-app .format-toggle{display:flex;background:var(--bg-input);border-radius:3px;padding:2px;margin-left:auto}.tack-app .format-toggle button{background:0 0;border:none;padding:3px 10px;font-size:11px;font-weight:500;color:var(--text-dim);border-radius:2px;min-height:0;letter-spacing:.04em}.tack-app .format-toggle button.active{background:var(--bg);color:var(--text)}.tack-app .format-toggle button:hover:not(.active){color:var(--text)}.tack-app .coord-settings{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:8px;background:var(--bg-elevated)}.tack-app .coord-row{display:flex;align-items:center;gap:8px}.tack-app .coord-label{font-size:9px;font-weight:700;letter-spacing:.12em;color:var(--text-dim);text-transform:uppercase;min-width:38px}.tack-app .seg-toggle,.tack-app .origin-presets{display:flex;background:var(--bg-input);border-radius:3px;padding:2px;gap:1px}.tack-app .seg-toggle button,.tack-app .origin-presets button{background:0 0;border:none;padding:3px 8px;font-size:10px;font-weight:600;color:var(--text-dim);border-radius:2px;min-height:0;font-family:jetbrains mono,monospace;letter-spacing:.04em}.tack-app .seg-toggle button.active,.tack-app .origin-presets button.active{background:var(--bg);color:var(--accent)}.tack-app .seg-toggle button:hover:not(.active),.tack-app .origin-presets button:hover:not(.active){color:var(--text)}.tack-app .origin-presets button{width:26px;padding:3px 0;text-align:center;justify-content:center}.tack-app .origin-presets button.picking{background:var(--accent);color:var(--bg)}.tack-app .coord-readout{margin-left:auto;font-family:jetbrains mono,monospace;font-size:10px;color:var(--text-faint);white-space:nowrap}.tack-app .output-content{flex:1;padding:12px 14px;font-family:jetbrains mono,monospace;font-size:11px;line-height:1.65;overflow:auto;background:var(--bg);color:var(--text);white-space:pre;user-select:text;border:none;outline:none;resize:none;width:100%}.tack-app .output-content::placeholder{color:var(--text-faint);font-style:italic}.tack-app .output-footer{padding:8px 10px;border-top:1px solid var(--border);display:flex;gap:6px}.tack-app .output-footer button{flex:1;justify-content:center}.tack-app #file-input,.tack-app #json-input{display:none}.tack-app ::-webkit-scrollbar{width:10px;height:10px}.tack-app ::-webkit-scrollbar-track{background:0 0}.tack-app ::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:5px;border:2px solid var(--bg-elevated)}.tack-app ::-webkit-scrollbar-thumb:hover{background:#4a4d52}@media(display-mode:standalone){body{overflow:hidden}body>.seo-section,body>footer{display:none!important}.tack-app{height:100vh;height:100dvh}}@media(max-width:767px){.tack-app{display:none}}