:root{--accent-gold: #f4ba00;--accent-gold-bright: #fedd3d;--accent-gold-mid: #fbd32c;--accent-gold-hover: #e0ab00;--accent-gold-glow: rgba(244, 186, 0, .25);--accent-gold-subtle: rgba(244, 186, 0, .12);--gold-gradient: linear-gradient(135deg, #f4ba00 0%, #fedd3d 100%);--gold-gradient-hover: linear-gradient(135deg, #e0ab00 0%, #fbd32c 100%);--header-bg: #101216;--header-border: rgba(255, 255, 255, .08);--header-text: #f3f4f6;--header-text-muted: #94a3b8;--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--transition: all .2s cubic-bezier(.16, 1, .3, 1)}:root,html.dark,html[data-theme=dark],body[data-theme=dark]{--bg-primary: #0b0d10;--bg-secondary: #14171d;--bg-surface: #1a1e26;--bg-card: #14171d;--bg-card-hover: #1c2028;--header-bg: #101216;--header-border: rgba(255, 255, 255, .08);--header-text: #f3f4f6;--header-text-muted: #94a3b8;--border-subtle: #222630;--border-card: #282d37;--border-focus: #fedd3d;--text-primary: #f3f4f6;--text-secondary: #94a3b8;--text-muted: #64748b;--text-link: #fbd32c;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-card: 0 10px 30px -10px rgba(0, 0, 0, .65);--shadow-glow: 0 0 25px rgba(244, 186, 0, .24);--dropzone-bg: rgba(244, 186, 0, .03);--dropzone-border: rgba(244, 186, 0, .35)}html.light,html[data-theme=light],body[data-theme=light]{--bg-primary: #f8fafc;--bg-secondary: #f1f5f9;--bg-surface: #f1f5f9;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--header-bg: #ffffff;--header-border: #e2e8f0;--header-text: #0f172a;--header-text-muted: #64748b;--border-subtle: #e2e8f0;--border-card: #cbd5e1;--border-focus: #f4ba00;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--text-link: #d99b00;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--shadow-card: 0 4px 20px -2px rgba(15, 23, 42, .08);--shadow-glow: 0 0 20px rgba(244, 186, 0, .22);--dropzone-bg: rgba(244, 186, 0, .04);--dropzone-border: rgba(244, 186, 0, .45)}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);line-height:1.5;min-height:100vh;display:flex;flex-direction:column;transition:background-color .25s ease,color .25s ease}:focus-visible{outline:2px solid var(--border-focus);outline-offset:3px;border-radius:var(--radius-sm)}.skip-link{position:absolute;top:-40px;left:10px;background:var(--accent-gold);color:#161320;padding:8px 16px;z-index:1000;border-radius:var(--radius-sm);transition:top .2s;font-weight:700;text-decoration:none}.skip-link:focus{top:10px}header.app-header{background:var(--header-bg);color:var(--header-text);border-bottom:1px solid var(--header-border);position:sticky;top:0;z-index:50;padding:.65rem 1.25rem;box-shadow:0 2px 12px #00000040;transition:background-color .25s ease,border-color .25s ease}.header-container{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.header-top-bar{display:flex;align-items:center;gap:1.5rem}@media (min-width: 769px){.header-top-bar{display:contents}.brand{order:1}.header-nav-bar{order:2}.header-utilities{order:3}}.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:var(--text-primary);-webkit-user-select:none;user-select:none}.brand-logo{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:var(--bg-surface);border:1px solid rgba(244,186,0,.45);box-shadow:0 0 12px var(--accent-gold-glow);color:var(--accent-gold);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.brand:hover .brand-logo{transform:scale(1.04);border-color:var(--accent-gold-bright);box-shadow:0 0 16px #f4ba0066}.brand-title{font-size:1.25rem;font-weight:800;letter-spacing:-.02em;color:var(--text-primary)}.header-nav-bar{display:flex;align-items:center;gap:.5rem}.header-utilities{display:flex;align-items:center;gap:.65rem}.nav-link{color:var(--header-text-muted);text-decoration:none;font-size:.85rem;font-weight:600;padding:6px 14px;border-radius:var(--radius-sm);transition:var(--transition);display:inline-flex;align-items:center;gap:.35rem;background:transparent;border:1px solid transparent;cursor:pointer}.nav-link:hover{color:var(--text-primary);background:var(--bg-surface)}.nav-link.active{color:var(--accent-gold);background:var(--accent-gold-subtle);border-color:#f4ba004d}.theme-toggle-btn{background:var(--bg-surface);border:1px solid 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var(--border-subtle);box-sizing:border-box}.header-nav-bar .nav-link{flex:1;text-align:center;justify-content:center;display:flex;align-items:center;gap:.25rem;padding:6px 4px;font-size:.78rem;min-width:0;white-space:nowrap}.header-nav-bar .nav-link.active{background:var(--bg-card);color:var(--accent-gold);box-shadow:0 1px 3px #0003}.github-label{display:none}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.25rem;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;border:none;cursor:pointer;transition:var(--transition);text-decoration:none;white-space:nowrap;min-height:44px}.btn-sm{padding:.4rem .85rem;font-size:.8rem;min-height:36px}.btn-icon-only{width:36px;height:36px;min-height:36px;padding:0;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:var(--radius-sm)}.btn-primary{background:var(--gold-gradient);color:#161320;font-weight:700;box-shadow:0 2px 10px 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h1{font-size:2.5rem;font-weight:900;letter-spacing:-.03em;line-height:1.18;margin-bottom:.65rem;background:linear-gradient(135deg,var(--text-primary) 30%,var(--accent-gold) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-section p{font-size:1.05rem;color:var(--text-secondary);max-width:700px;margin:0 auto 1.25rem}.privacy-pill{display:inline-flex;align-items:center;gap:.5rem;padding:6px 14px;border-radius:var(--radius-full);background:var(--bg-card);border:1px solid var(--border-subtle);font-size:.85rem;color:var(--accent-gold);font-weight:600}.engine-mode-tabs{display:inline-flex;align-items:center;background:var(--bg-surface);border:1px solid var(--border-card);border-radius:var(--radius-full);padding:4px;gap:4px;margin-bottom:1.5rem;box-shadow:var(--shadow-sm);max-width:100%}.mode-tab{display:inline-flex;align-items:center;gap:.5rem;padding:8px 18px;border-radius:var(--radius-full);font-size:.85rem;font-weight:600;color:var(--text-muted);background:transparent;border:none;cursor:pointer;transition:var(--transition)}.mode-tab:hover{color:var(--text-primary);background:var(--bg-card-hover)}.mode-tab.active{color:var(--accent-gold);background:var(--bg-card);box-shadow:0 1px 4px #00000040;border:1px solid rgba(244,186,0,.35)}@media (max-width: 520px){.engine-mode-tabs{width:100%;border-radius:var(--radius-md)}.mode-tab{flex:1;justify-content:center;padding:8px;font-size:.78rem;border-radius:var(--radius-sm)}}.upload-card{background:var(--dropzone-bg);border:2px dashed var(--dropzone-border);border-radius:var(--radius-lg);padding:2.5rem 1.5rem;text-align:center;cursor:pointer;transition:var(--transition);position:relative;overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:2rem}.upload-card:hover,.upload-card.drag-active{border-color:var(--accent-gold);background:var(--accent-gold-subtle);box-shadow:var(--shadow-glow)}.upload-icon{width:56px;height:56px;margin:0 auto 1rem;border-radius:50%;background:var(--accent-gold-subtle);display:flex;align-items:center;justify-content:center;color:var(--accent-gold);border:1px solid rgba(244,186,0,.3)}.upload-title{font-size:1.35rem;font-weight:700;margin-bottom:.4rem;color:var(--text-primary)}.upload-subtitle{font-size:.9rem;color:var(--text-muted);max-width:540px;margin:0 auto 1.5rem}.upload-controls{display:flex;justify-content:center;gap:.75rem;flex-wrap:wrap}.progress-card{background:var(--bg-card);border:1px solid 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12px;border-radius:var(--radius-md);min-height:38px}.edge-opacity-label{font-size:.78rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}.edge-opacity-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:90px;height:6px;background:var(--border-subtle);border-radius:3px;outline:none;cursor:pointer;transition:opacity .2s}.edge-opacity-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:15px;height:15px;border-radius:50%;background:var(--accent-gold);border:2px solid #ffffff;box-shadow:0 0 6px #f4ba0099;cursor:pointer;transition:transform .15s ease}.edge-opacity-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.edge-opacity-slider::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:var(--accent-gold);border:2px solid #ffffff;cursor:pointer}.edge-opacity-val{font-family:var(--font-mono);font-size:.8rem;font-weight:800;color:var(--accent-gold);min-width:34px;text-align:right}.contour-toggle-btn{background:var(--accent-gold-subtle);border:1px solid var(--accent-gold);color:var(--accent-gold);font-size:.72rem;font-weight:700;padding:2px 7px;border-radius:4px;cursor:pointer;transition:var(--transition)}.contour-toggle-btn.muted{background:transparent;border-color:var(--border-subtle);color:var(--text-muted)}.edge-opacity-control.disabled{opacity:.38;pointer-events:none;filter:grayscale(1);cursor:not-allowed}.edge-opacity-control.disabled input,.edge-opacity-control.disabled button{cursor:not-allowed;pointer-events:none}.viewer-controls{display:flex;align-items:center;gap:.4rem}.zoom-btn{background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-secondary);min-width:36px;height:36px;padding:0 6px;border-radius:var(--radius-sm);display:inline-flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;line-height:1;cursor:pointer;transition:var(--transition);box-sizing:border-box}.zoom-btn:hover{color:var(--text-primary);border-color:var(--accent-gold)}.zoom-btn.active{background:var(--accent-gold);border-color:var(--accent-gold);color:#161320}#btnToggleGrid,#btnCenterCanvas{width:auto;min-width:56px;padding:0 10px;gap:6px;display:inline-flex;align-items:center;justify-content:center}#btnToggleGrid svg,#btnCenterCanvas svg{width:14px;height:14px;stroke-width:2.2;flex-shrink:0}#btnToggleGrid.active svg{stroke:#161320}.viewport-canvas{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:0 4px 20px #0003;min-height:440px;max-height:600px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;padding:0;touch-action:none;user-select:none;-webkit-user-select:none;width:100%;max-width:100%;box-sizing:border-box}.viewport-canvas.grid-pattern{background-color:#181c24;background-image:linear-gradient(45deg,#2a303d 25%,transparent 25%),linear-gradient(-45deg,#2a303d 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#2a303d 75%),linear-gradient(-45deg,transparent 75%,#2a303d 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px}html.light .viewport-canvas.grid-pattern,body.light .viewport-canvas.grid-pattern,html[data-theme=light] .viewport-canvas.grid-pattern{background-color:#f1f5f9;background-image:linear-gradient(45deg,#cbd5e1 25%,transparent 25%),linear-gradient(-45deg,#cbd5e1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#cbd5e1 75%),linear-gradient(-45deg,transparent 75%,#cbd5e1 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px}.viewport-canvas.can-pan{cursor:grab}.viewport-canvas.is-panning{cursor:grabbing}.viewport-canvas svg{width:100%;height:100%;max-width:100%;max-height:560px;margin:auto;display:block;pointer-events:none;background:transparent}.panel-card{background:var(--bg-card);border:1px solid var(--border-card);border-radius:var(--radius-lg);padding:1.25rem;display:flex;flex-direction:column;gap:1.25rem;box-shadow:var(--shadow-card)}.panel-section-title{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:.65rem;display:flex;justify-content:space-between;align-items:center}.metrics-table{width:100%;font-size:.85rem;border-collapse:collapse}.metrics-table tr{border-bottom:1px solid var(--border-subtle)}.metrics-table tr:last-child{border-bottom:none}.metrics-table td{padding:.45rem 0}.metrics-table td:last-child{text-align:right;font-family:var(--font-mono);font-weight:700;color:var(--accent-gold)}.palette-card{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:.85rem}.palette-hint{font-size:.72rem;color:var(--text-muted);margin-bottom:.5rem;display:flex;align-items:center;gap:4px}.palette-swatches-grid{display:flex;flex-wrap:wrap;gap:5px;max-height:120px;overflow-y:auto;padding:4px}.swatch-chip{width:24px;height:24px;border-radius:4px;border:1px solid rgba(255,255,255,.2);cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;position:relative}.swatch-chip:hover{transform:scale(1.3);z-index:10;box-shadow:0 0 10px #f4ba0099;border-color:#fff}.swatch-chip:active,.swatch-chip.copied{transform:scale(.9);box-shadow:0 0 12px #10b981e6}.copy-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(80px);background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--accent-gold);box-shadow:var(--shadow-card),0 0 16px #f4ba0059;padding:10px 18px;border-radius:var(--radius-full);font-size:.85rem;font-weight:700;display:flex;align-items:center;gap:8px;z-index:9999;opacity:0;pointer-events:none;transition:transform .3s cubic-bezier(.16,1,.3,1),opacity .3s ease}.copy-toast.visible,.copy-toast.show{transform:translate(-50%) translateY(0);opacity:1;pointer-events:auto}.copy-toast svg{color:var(--accent-gold)}footer.site-footer{background:var(--bg-card);border-top:1px solid var(--border-subtle);margin-top:3.5rem;padding:24px 16px;font-size:12px;color:var(--text-muted);line-height:1.5}.footer-container{max-width:1400px;margin:0 auto}.footer-top-row{display:flex;flex-direction:column;gap:1rem;align-items:center;justify-content:space-between}@media (min-width: 768px){.footer-top-row{flex-direction:row}}.footer-meta-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.5rem;text-align:center}@media (min-width: 768px){.footer-meta-links{justify-content:flex-start;text-align:left}}.footer-author{display:flex;align-items:center;gap:6px;font-weight:600;color:var(--text-primary)}.footer-author a,.footer-link{color:var(--text-link);text-decoration:underline;text-underline-offset:2px;transition:color .15s ease;background:transparent;border:none;font-size:12px;cursor:pointer;padding:0}.footer-author a:hover,.footer-link:hover{color:var(--accent-gold)}.footer-separator{color:var(--text-muted);opacity:.6}.footer-action-pills{display:flex;align-items:center;gap:.65rem;flex-shrink:0}.footer-pill-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-full);border:1px solid var(--border-subtle);background:var(--bg-secondary);color:var(--text-primary);font-size:11px;font-weight:600;text-decoration:none;transition:var(--transition)}.footer-pill-btn:hover{border-color:var(--accent-gold);color:var(--accent-gold);background:var(--bg-card-hover);transform:translateY(-1px)}.footer-pill-btn svg{color:var(--accent-gold)}.workflow-main{width:100%;max-width:1100px;box-sizing:border-box;margin:0 auto;padding:2.5rem 1.25rem;overflow-x:hidden;min-width:0}@media (max-width: 640px){.workflow-main{padding:2rem 1rem}}@media (max-width: 360px){.workflow-main{padding:1.25rem .65rem}}.workflow-hero{width:100%;max-width:100%;box-sizing:border-box;text-align:center;margin-bottom:3.5rem}.workflow-hero h1{font-size:2.75rem;font-weight:900;letter-spacing:-.03em;margin-bottom:1rem;background:linear-gradient(135deg,var(--text-primary) 30%,var(--accent-gold) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;overflow-wrap:break-word;word-break:break-word}@media (max-width: 640px){.workflow-hero h1{font-size:2rem}}@media (max-width: 360px){.workflow-hero h1{font-size:1.55rem}}.workflow-hero p{font-size:1.15rem;color:var(--text-secondary);max-width:760px;margin:0 auto;box-sizing:border-box}.workflow-steps-timeline{display:flex;flex-direction:column;gap:2rem;margin-bottom:3.5rem;width:100%;max-width:100%;box-sizing:border-box;min-width:0}.workflow-step-card{background:var(--bg-card);border:1px solid var(--border-card);border-radius:var(--radius-lg);padding:2.25rem;display:flex;flex-direction:column;gap:1.25rem;box-shadow:var(--shadow-card);transition:var(--transition);margin-bottom:2rem;width:100%;max-width:100%;box-sizing:border-box;min-width:0}.workflow-step-card:hover{border-color:var(--accent-gold);transform:translateY(-2px);box-shadow:var(--shadow-glow)}@media (max-width: 640px){.workflow-step-card{padding:1.5rem}}@media (max-width: 360px){.workflow-step-card{padding:1.25rem .75rem}}.workflow-step-header{display:flex;align-items:center;gap:1.25rem;width:100%;max-width:100%;box-sizing:border-box;min-width:0}@media (max-width: 360px){.workflow-step-header{gap:.75rem}}.workflow-step-num{width:52px;height:52px;border-radius:var(--radius-md);background:var(--gold-gradient);color:#0b0d10;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;flex-shrink:0;box-shadow:0 4px 14px #f4ba0059}@media (max-width: 360px){.workflow-step-num{width:40px;height:40px;font-size:1.15rem}}.workflow-step-title{font-size:1.35rem;font-weight:800;color:var(--text-primary);margin-bottom:.25rem}.workflow-step-desc{color:var(--text-secondary);font-size:.95rem;line-height:1.65;margin:0}.workflow-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-top:.25rem}@media (max-width: 768px){.workflow-grid-2{grid-template-columns:1fr}}.workflow-spec-box{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:1.25rem;transition:var(--transition)}.workflow-spec-box:hover{border-color:var(--border-focus)}.workflow-spec-box h4{font-size:.95rem;font-weight:700;color:var(--text-primary);margin-bottom:.45rem}.workflow-spec-box p{font-size:.88rem;color:var(--text-secondary);line-height:1.55;margin:0}.workflow-cta-card{background:linear-gradient(135deg,#f4ba0014,#fedd3d0a);border:1px solid var(--accent-gold);border-radius:var(--radius-lg);padding:2.5rem;text-align:center;box-shadow:var(--shadow-glow)}.workflow-cta-card h2{font-size:1.75rem;font-weight:800;margin-bottom:.75rem;color:var(--text-primary)}.workflow-cta-card p{color:var(--text-secondary);max-width:600px;margin:0 auto 1.5rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:1.25rem;z-index:1000;opacity:0;pointer-events:none;transition:opacity .2s cubic-bezier(.16,1,.3,1)}.modal-overlay.open{opacity:1;pointer-events:auto}.modal-dialog,.modal-card{background:var(--bg-card);border:1px solid var(--border-card);border-radius:var(--radius-lg);max-width:620px;width:100%;max-height:85vh;display:flex;flex-direction:column;box-shadow:0 20px 40px -10px #000000a6;transform:translateY(12px) scale(.98);transition:transform .2s cubic-bezier(.16,1,.3,1);overflow:hidden}.modal-card{padding:1.5rem}.modal-overlay.open .modal-dialog,.modal-overlay.open .modal-card{transform:translateY(0) scale(1)}.modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;gap:1rem;background:var(--bg-card)}.modal-title{font-size:1.2rem;font-weight:800;color:var(--text-primary);display:flex;align-items:center;gap:.65rem}.modal-title svg{color:var(--accent-gold)}.modal-close-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.25rem;line-height:1;transition:var(--transition)}.modal-close-btn:hover{background:var(--bg-surface);color:var(--text-primary)}.modal-body{padding:1.5rem;overflow-y:auto;color:var(--text-secondary);font-size:.92rem;line-height:1.65}.modal-body h4{color:var(--text-primary);font-size:.95rem;font-weight:700;margin:1.25rem 0 .4rem}.modal-body h4:first-child{margin-top:0}.modal-body p{margin-bottom:.85rem}.modal-body ul{margin:.5rem 0 1rem 1.25rem}.modal-body li{margin-bottom:.4rem}.modal-body pre{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:1rem;font-family:var(--font-mono);font-size:.82rem;color:var(--text-primary);white-space:pre-wrap;word-break:break-word;margin:.75rem 0 1rem;line-height:1.5}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--border-subtle);display:flex;justify-content:flex-end;gap:.75rem;background:var(--bg-surface)}@media (max-width: 768px){.artboard-stage{grid-template-columns:1fr;gap:1rem;width:100%}.viewer-card{padding:.85rem;width:100%;max-width:100%;box-sizing:border-box}.viewer-toolbar{flex-direction:column;align-items:stretch;height:auto;min-height:unset;gap:.65rem;width:100%}.viewer-title-box{flex:0 0 auto;width:100%;height:auto;min-height:2.5rem;display:flex;align-items:center;min-width:0}.viewer-title{font-size:1.05rem;text-align:left;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;display:block}.viewer-actions-cluster{display:flex;flex-direction:column;align-items:stretch;gap:.5rem;width:100%}.viewer-controls{display:flex;align-items:center;gap:6px;width:100%}.zoom-btn{flex:1;min-width:32px;min-height:36px;height:36px;font-size:.8rem}#btnToggleGrid,#btnCenterCanvas{flex:1.25;min-width:52px;padding:0 6px}.viewport-canvas{min-height:340px;max-height:480px}.panel-card{padding:1rem;width:100%;max-width:100%;box-sizing:border-box}}@media (max-width: 400px){.viewer-card{padding:.65rem}.edge-opacity-control{padding:4px 6px;gap:5px}.edge-opacity-slider{width:65px}.edge-opacity-label,.edge-opacity-val{font-size:.72rem}.viewer-controls{gap:4px}.zoom-btn{flex:1;min-width:26px;height:34px;min-height:34px;font-size:.72rem;padding:0 3px}#btnToggleGrid,#btnCenterCanvas{flex:1.2;min-width:46px;padding:0 4px;font-size:.72rem;gap:3px}#btnToggleGrid svg,#btnCenterCanvas svg{width:12px;height:12px}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}