:root {   --primary-color:#2563EB;   --secondary-color:#64748B;   --tertiary-color:#FACC15; } body {   font-size:20px;   font-family:Arial;   color:#000000;   background:linear-gradient(to right, #fba2a2 0%, #e9ff42 48%, #b0b4f2 100%); }