.vvf-popup {
  box-sizing: border-box;
  width: min(420px, calc(100vw - 32px));
  min-height: min(380px, calc(100dvh - 48px));
  max-height: calc(100dvh - 48px);
  overflow-y: auto;
  border: 0;
  border-radius: 16px;
  padding: 42px 32px 30px;
  background: #fff;
  color: #172033;
  box-shadow: 0 24px 90px #0005;
  text-align: center;
  font: 16px/1.6 system-ui, sans-serif;
  margin: auto;
  position: fixed;
  inset: 0;
  z-index: 2147483647;
}
.vvf-popup::backdrop { background: #0f172a88; }
.vvf-popup h2 { font: 700 24px/1.3 system-ui, sans-serif; margin: 16px 0; color: #172033; }
.vvf-popup p { margin: 12px 0; }
.vvf-popup .vvf-symbol { width: 60px; height: 60px; border-radius: 50%; background: #eff6ff; color: #2563eb; font-size: 30px; line-height: 60px; margin: 0 auto; }
.vvf-popup .vvf-close { position: absolute; right: 12px; top: 8px; background: transparent; border: 0; color: #475569; font-size: 28px; line-height: 1; padding: 8px; cursor: pointer; }
.vvf-popup .vvf-confirm { border: 0; background: #2563eb; color: #fff; border-radius: 8px; padding: 12px 24px; font: 600 16px/1.4 system-ui, sans-serif; cursor: pointer; margin: 12px 0; }
.vvf-popup button:disabled { opacity: .6; cursor: wait; }
.vvf-popup button:focus-visible { outline: 3px solid #60a5fa; outline-offset: 3px; }
.vvf-popup .vvf-countdown { color: #64748b; font-size: 13px; }
@media (max-width: 480px) { .vvf-popup { padding: 38px 24px 24px; } }