:root {
  /* Brand — placeholder pending NHM-UP guidance */
  --sankalp-brand:        #138808;
  --sankalp-brand-dark:   #0d6606;
  --sankalp-brand-light:  #e8f5e9;

  /* Risk — fixed, accessibility-driven */
  --sankalp-risk-red:        #d32f2f;
  --sankalp-risk-red-bg:     #ffebee;
  --sankalp-risk-yellow:     #f9a825;
  --sankalp-risk-yellow-bg:  #fff8e1;
  --sankalp-risk-green:      #388e3c;
  --sankalp-risk-green-bg:   #e8f5e9;

  /* Surface */
  --sankalp-surface:           #ffffff;
  --sankalp-surface-secondary: #f5f5f5;
  --sankalp-border:            #e0e0e0;

  /* Typography */
  --sankalp-font-hindi:   'Noto Sans Devanagari', sans-serif;
  --sankalp-font-english: 'Inter', sans-serif;
  --sankalp-text-primary:   #212121;
  --sankalp-text-secondary: #757575;

  /* Spacing scale */
  --sankalp-space-xs: 4px;
  --sankalp-space-sm: 8px;
  --sankalp-space-md: 16px;
  --sankalp-space-lg: 24px;
  --sankalp-space-xl: 32px;

  /* Sync state */
  --sankalp-sync-online:  #4CAF50;
  --sankalp-sync-offline: #FFC107;

  /* Overlay / glass effects */
  --sankalp-overlay-dark:       rgba(0,0,0,0.75);
  --sankalp-overlay-light-15:   rgba(255,255,255,0.15);
  --sankalp-overlay-light-20:   rgba(255,255,255,0.2);
  --sankalp-overlay-light-35:   rgba(255,255,255,0.35);
  --sankalp-overlay-light-40:   rgba(255,255,255,0.4);
  --sankalp-overlay-light-50:   rgba(255,255,255,0.5);
  --sankalp-overlay-light-70:   rgba(255,255,255,0.7);
  --sankalp-overlay-light-92:   rgba(255,255,255,0.92);
  --sankalp-shadow-10:          rgba(0,0,0,0.1);
  --sankalp-shadow-15:          rgba(0,0,0,0.15);
  --sankalp-brand-50:           rgba(19,136,8,0.5);

  /* Map density bands — green→yellow→orange→red (risk-severity scale) */
  --sankalp-map-density-low:      #c8e6c9;
  --sankalp-map-density-moderate: #fff176;
  --sankalp-map-density-high:     #ff8a65;
  --sankalp-map-density-critical: #d32f2f;

  /* SVG map highlight */
  --sankalp-map-highlight:        #90CAF9;

  /* WhatsApp simulator — faithful to WA brand, not Sankalp brand */
  --wa-header:       #075E54;
  --wa-wallpaper:    #ECE5DD;
  --wa-bubble-in:    #FFFFFF;
  --wa-bubble-out:   #DCF8C6;
  --wa-input-bar:    #F0F0F0;
  --wa-tick-blue:    #53BDEB;
}