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svg{color:var(--accent)}.graph-canvas-wrapper{background:var(--bg-primary);flex:1;min-height:420px;position:relative;overflow:hidden}.graph-canvas{width:100%;height:100%;min-height:420px}.graph-empty-overlay{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;font-size:.85rem;display:flex;position:absolute;inset:0}.graph-toolbar{z-index:10;gap:4px;display:flex;position:absolute;bottom:16px;right:16px}.graph-toolbar-btn{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-primary);border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);background:#000000a6;justify-content:center;align-items:center;display:flex}.graph-toolbar-btn:hover{color:var(--accent);border-color:var(--accent-border);background:var(--accent-bg)}.graph-toolbar-btn-active{color:var(--accent);border-color:var(--accent-border)}.graph-legend{border-top:1px solid var(--border-primary);flex-wrap:wrap;justify-content:center;gap:16px;padding:1rem 1.75rem;display:flex}.graph-legend-item{color:var(--text-muted);align-items:center;gap:6px;font-size:.7rem;font-weight:500;display:flex}.graph-legend-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.graph-legend-variable{background:#60a5fa}.graph-legend-terminal{background:#34d399;border-radius:2px}.graph-legend-start{background:var(--accent);border:2px solid var(--accent-dark)}.graph-legend-removed{opacity:.4;background:#f87171}.placeholder-section{justify-content:center;align-items:center;min-height:250px;padding:3rem 2rem;display:flex}.placeholder-content{text-align:center;max-width:450px}.placeholder-icon-group{justify-content:center;gap:16px;margin-bottom:2rem;display:flex}.placeholder-icon{border-radius:var(--radius-lg);width:52px;height:52px;font-family:var(--font-mono);transition:transform var(--transition-slow);background:var(--accent-bg);border:1px solid var(--accent-border);color:var(--accent);justify-content:center;align-items:center;font-size:1.3rem;font-weight:700;display:flex}.placeholder-icon:hover{transform:translateY(-4px)scale(1.05)}.placeholder-icon-1,.placeholder-icon-2,.placeholder-icon-3{background:var(--accent-bg);border:1px solid var(--accent-border);color:var(--accent)}.placeholder-title{color:var(--text-primary);letter-spacing:-.03em;margin-bottom:.75rem;font-size:1.5rem;font-weight:800}.placeholder-desc{color:var(--text-muted);font-size:.9rem;line-height:1.7}.before-after-section{position:relative}.before-after-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:1.5px;align-items:center;gap:8px;margin-bottom:.75rem;font-size:.72rem;font-weight:700;display:flex}.before-after-dot{background:var(--text-muted);border-radius:50%;width:6px;height:6px}.before-section .before-dot{background:#6b7280}.after-section .after-dot{background:var(--accent);box-shadow:0 0 10px #d4e15766}.before-section{border-bottom:1px dashed var(--border-secondary);margin-bottom:1.5rem;padding-bottom:1.5rem}.grammar-line-before{opacity:.7}.algorithm-section{border:1px solid var(--border-primary);border-radius:var(--radius-md);background:#ffffff05;margin-bottom:2rem;padding:1.25rem}.algorithm-title{color:var(--accent);align-items:center;gap:8px;margin-bottom:1rem;font-size:.85rem;font-weight:700;display:flex}.algorithm-steps{color:var(--text-secondary);margin:0;padding-left:20px;font-size:.82rem;line-height:1.6}.algorithm-step{margin-bottom:6px}.algorithm-step:last-child{margin-bottom:0}.app-footer{text-align:center;border-top:1px solid var(--border-primary);color:var(--text-muted);letter-spacing:.5px;padding:3rem 2rem;font-size:.72rem}@media (width<=900px){.results-panels{grid-template-columns:1fr}.header-section{padding:3rem 1.25rem 2rem}.main-content{padding:1.5rem}.step-node{width:28px;height:28px;font-size:.7rem}.step-label{font-size:.6rem}}@media (width<=600px){.input-panel-header{flex-direction:column;align-items:flex-start}.header-title{font-size:2rem}.btn-nav{padding:6px 12px;font-size:.78rem}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}