/* Shared application tokens */
:root {
      /* AutoCAD/Professional Software Color Palette */
      --bg-base: #1e1e1e;       /* Canvas wrapper base */
      --bg-panel: #252526;      /* Main toolbars and panels */
      --bg-surface: #2d2d30;    /* Buttons, inner panels */
      --bg-surface-hover: #3e3e42; /* Hover states */
      --bg-canvas: #121212;     /* The actual drawing canvas area */
      
      --border: #3f3f46;
      --border-light: #555555;
      --border-focus: #9f1d35;
      
      --text-main: #cccccc;
      --text-bright: #ffffff;
      --text-muted: #858585;
      
      --accent: #9f1d35;        /* TurkCAD bordo accent */
      --accent-hover: #c92a45;
      --accent-active-bg: rgba(159, 29, 53, 0.25);
      
      --danger: #d16969;
      --warning: #cca700;
      --good: #4CAF50;
      --selection: rgba(159, 29, 53, 0.35);
      --selection-border: #9f1d35;
      
      --grid-minor: rgba(255, 255, 255, 0.05);
      --grid-major: rgba(255, 255, 255, 0.12);
      
      --radius-sm: 4px;
      --radius-md: 6px;
      --shadow-dropdown: 0 8px 16px rgba(0,0,0,0.4);
      
      --font-ui: "Segoe UI", "Roboto", "Inter", "Helvetica Neue", sans-serif;
      --font-mono: "Consolas", "Cascadia Code", "Menlo", monospace;
    }