/* Custom scrollbars for clean code look */
    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    ::-webkit-scrollbar-track {
      background: transparent;
    }
    ::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 4px;
    }
    .dark ::-webkit-scrollbar-thumb {
      background: #475569;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: #94a3b8;
    }
    
    /* Grid background pattern for SVG canvas */
    .grid-bg-light {
      background-image: radial-gradient(#e2e8f0 1.5px, transparent 1.5px);
      background-size: 24px 24px;
      background-color: #f8fafc;
    }
    .dark .grid-bg-dark {
      background-image: radial-gradient(#334155 1.5px, transparent 1.5px);
      background-size: 24px 24px;
      background-color: #0f172a;
    }
    
    /* CSS Transition for connections and hover states */
    .node-transition {
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .connection-line {
      transition: stroke-width 0.2s, opacity 0.2s, filter 0.2s;
    }
    .connection-line:hover {
      stroke-width: 4px !important;
      opacity: 1 !important;
      filter: drop-shadow(0 0 4px currentColor);
      cursor: pointer;
    }

    /* Standardized Material Symbols style override for crisp rendering */
    .material-symbols-outlined {
      font-size: 18px;
      display: inline-block;
      vertical-align: middle;
      line-height: 1;
    }
    
    /* Custom slow rotation for empty state explore icon */
    .animate-spin-slow {
      animation: spin-slow 12s linear infinite;
    }
    @keyframes spin-slow {
      100% { transform: rotate(360deg); }
    }