/* WhatsApp-style preview bubble */
.wa-phone {
  background: #0b141a;
  background-image:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,0.02) 0, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.02) 0, transparent 40%);
}
.wa-bubble {
  background: #005c4b;
  color: #e9edef;
  border-radius: 8px;
  position: relative;
}
.wa-bubble::before {
  content: "";
  position: absolute;
  top: 0;
  right: -8px;
  width: 0;
  height: 0;
  border-top: 8px solid #005c4b;
  border-right: 8px solid transparent;
}
.wa-btn {
  color: #53bdeb;
  border-top: 1px solid rgba(255,255,255,0.08);
}