/* Theme: Dark (default KB theme) */
:root {
  --bg-primary: #0F1419; --bg-secondary: #162026; --bg-surface: #1A2830;
  --text-primary: #E6EDF3; --text-secondary: #8B9CAD; --text-muted: #5C6F7E;
  --accent-primary: #4FC3F7; --accent-secondary: #80CBC4;
  --border: #2A3F50; --grid: #1F3040;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #FAFCFD; --bg-secondary: #F0F4F7; --bg-surface: #FFFFFF;
    --text-primary: #0F1419; --text-secondary: #5C6F7E; --text-muted: #8B9CAD;
    --accent-primary: #0277BD; --accent-secondary: #00897B;
    --border: #CDD8E0; --grid: #E0E8EE;
  }
}