/* B1 English Bangla – indigo + coral (conversation / speaking feel). */
:root {
  --brand: #4338ca; --brand-2: #2e2591; --brand-soft: #eceafd; --accent: #f97366; --on-brand: #ffffff;
  --hero: linear-gradient(135deg, #4338ca 0%, #2e2591 100%);
  --bg: #f7f7fc;
}
@media (prefers-color-scheme: dark) {
  :root { --brand: #a5b4fc; --brand-2: #c7d2fe; --brand-soft: #1e1b4b; --accent: #fb8a7e; --on-brand: #12103a; --bg: #0f0f1a;
    --hero: linear-gradient(135deg, #3b33b0 0%, #1e1a63 100%); }
}