:root {
  --bg-primary:    #0f1117;
  --bg-surface:    #1a1d27;
  --bg-elevated:   #222636;
  --bg-cell:       #1c1f2e;
  --bg-dept:       #13151f;
  --border:        #2e3347;
  --border-subtle: #252840;

  --accent:        #4f8ef7;
  --accent-hover:  #6ba3ff;
  --accent-dim:    rgba(79,142,247,0.15);

  --text-primary:  #e8eaf0;
  --text-secondary:#a0a8c0;
  --text-muted:    #6b7494;

  --danger:        #e05252;
  --danger-hover:  #ff6b6b;
  --danger-dim:    rgba(224,82,82,0.15);
  --success:       #52a852;

  /* Priority colors */
  --p1: #e05252;
  --p2: #e0952a;
  --p3: #4f8ef7;
  --p4: #52a852;

  --sidebar-width:    300px;
  --machine-col:      210px;
  --day-col:          155px;
  --header-height:    60px;

  --radius-xs: 3px;
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  --shadow-sm: 0 1px 4px rgba(0,0,0,0.35);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.45);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.55);

  --transition: 140ms ease;
}