:root{
  --shadow-header:0 2px 8px rgba(0,0,0,.2);
  --shadow-card-hover:0 8px 24px rgba(0,0,0,.1);
  --shadow-btn-primary-hover:0 4px 12px rgba(30,115,190,.3);
  --shadow-btn-light-hover:0 4px 12px rgba(0,0,0,.2);
  --shadow-city-hover:0 4px 12px rgba(30,115,190,.1);
  --shadow-fab-wa:0 4px 12px rgba(37,211,102,.4);
  --shadow-fab-wa-hover:0 6px 16px rgba(37,211,102,.5);
  --shadow-sticky-cta:0 -4px 12px rgba(0,0,0,.1);
  --ring-focus:0 0 0 3px rgba(30,115,190,.1);
}