html.saymon-payment-open,
body.saymon-payment-open {
  overflow: hidden !important;
  overscroll-behavior: none;
}

.saymon-payment-layer {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  background: #101118;
  color: #fff;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.saymon-payment-layer--visible {
  opacity: 1;
  transform: translateY(0);
}

.saymon-payment-layer--closing {
  opacity: 0;
  transform: translateY(10px);
}

.saymon-payment-shell {
  position: relative;
  width: min(100%, 760px);
  height: 100%;
  min-height: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #101118;
}

.saymon-payment-frame {
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  border: 0;
  background: #101118;
  opacity: 0;
  transition: opacity 180ms ease;
}

.saymon-payment-frame--ready {
  opacity: 1;
}

.saymon-payment-loader {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: #101118;
  color: rgba(255, 255, 255, 0.72);
  font: 600 15px/1.2 Inter, Arial, sans-serif;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.saymon-payment-loader--hidden {
  opacity: 0;
  visibility: hidden;
}

.saymon-payment-spinner {
  width: 34px;
  height: 34px;
  box-sizing: border-box;
  border: 3px solid rgba(8, 169, 255, 0.18);
  border-top-color: #08a9ff;
  border-radius: 50%;
  animation: saymon-payment-spin 800ms linear infinite;
}

@keyframes saymon-payment-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 700px) {
  .saymon-payment-shell {
    padding-top: max(
      88px,
      calc(env(safe-area-inset-top, 0px) + 44px),
      calc(var(--tg-safe-area-inset-top, 0px) + var(--tg-content-safe-area-inset-top, 0px) + 20px)
    );
  }
}

@media (min-width: 701px) {
  .saymon-payment-shell { padding-top: max(20px, env(safe-area-inset-top, 0px)); }
}

@media (prefers-reduced-motion: reduce) {
  .saymon-payment-layer,
  .saymon-payment-frame,
  .saymon-payment-loader { transition: none; }
}