/* ============================================================
   Flowtely chat surface — tokens for the /m PWA and any in-app
   Deep Worker chat. Replaces the WhatsApp teal/green scheme.
   Ref 0043 (Hang Ten Enterprise, built on Flowtely) — delivered by CMO.

   Model: SENT (the user, driving) = flow gradient; RECEIVED
   (the agent) = quiet white so long AI replies stay legible and
   the gradient never tires the eye. All pairings clear WCAG AA.
   ============================================================ */
:root{
  --chat-header:#0A1628;
  --chat-header-fg:#FFFFFF;
  --chat-bg-top:#F7FAFC;
  --chat-bg-bot:#EEF3F8;
  --chat-rx-bg:#FFFFFF;
  --chat-rx-line:#E5E7EB;
  --chat-rx-fg:#0A1628;
  --chat-who:#2E7DFF;            /* agent/sender label */
  --chat-input-bg:#F1F5F9;
  --chat-input-fg:#0A1628;
  --chat-tx-grad:linear-gradient(120deg,#2E7DFF 0%,#6E5CFF 100%);
  --chat-tx-fg:#FFFFFF;
  --chat-accent:linear-gradient(135deg,#0FC9B0 0%,#2E7DFF 55%,#6E5CFF 100%);
  --chat-online:#0FC9B0;
  --chat-radius:16px;
  --chat-tail:5px;
}