.smm-checkout-mount {
  grid-column: 1 / -1;
  width: 100%;
  padding: clamp(18px, 3vw, 34px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #fff;
  color: #09090b;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.38);
}

.smm-checkout-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 22px;
  border-bottom: 2px solid #09090b;
}

.smm-checkout-step {
  display: block;
  margin-bottom: 8px;
  color: #b13a61;
  font: 800 10px/1 Inter, sans-serif;
  letter-spacing: .18em;
}

.smm-checkout-heading h3 {
  margin: 0;
  font: 900 clamp(24px, 3vw, 38px)/1 Inter, sans-serif;
  letter-spacing: -.045em;
}

.smm-checkout-heading strong {
  flex: 0 0 auto;
  font: 900 clamp(34px, 4vw, 54px)/.9 Inter, sans-serif;
  letter-spacing: -.07em;
}

.smm-checkout-benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 16px 0 6px;
  background: #dedde0;
  border: 1px solid #dedde0;
}

.smm-checkout-benefits span {
  padding: 10px 8px;
  background: #f6f5f5;
  color: #4d4950;
  text-align: center;
  font: 700 10px/1.25 Inter, sans-serif;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.smm-checkout-status {
  margin: 12px 0;
  color: #5e5961;
  font: 600 13px/1.5 Inter, sans-serif;
}

.smm-checkout-status:empty {
  display: none;
}

.smm-checkout-status.is-error {
  padding: 12px 14px;
  border: 1px solid #b13a61;
  background: #fff2f6;
  color: #671c35;
}

#smm-stripe-checkout {
  width: 100%;
  min-height: 570px;
  margin-top: 8px;
}

.smm-checkout-loader {
  display: grid;
  gap: 12px;
  padding: 28px 0 8px;
}

.smm-checkout-loader span {
  display: block;
  height: 52px;
  background: linear-gradient(90deg, #f2f1f2 25%, #fafafa 50%, #f2f1f2 75%);
  background-size: 200% 100%;
  animation: smm-checkout-loading 1.2s infinite linear;
}

.smm-checkout-loader span:first-child { height: 42px; }
.smm-checkout-loader span:last-child { height: 58px; }

.smm-checkout-reassurance {
  margin: 12px auto 0;
  max-width: 600px;
  color: #6d6870;
  text-align: center;
  font: 600 11px/1.55 Inter, sans-serif;
}

@keyframes smm-checkout-loading {
  to { background-position: -200% 0; }
}

@media (max-width: 620px) {
  .smm-checkout-mount { padding: 18px 14px; }
  .smm-checkout-heading { align-items: flex-start; }
  .smm-checkout-heading h3 { max-width: 210px; }
  .smm-checkout-benefits { grid-template-columns: 1fr; }
  .smm-checkout-benefits span { text-align: left; }
  #smm-stripe-checkout { min-height: 620px; }
}

[hidden] {
  display: none !important;
}