.payment-page-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(31, 111, 229, 0.14), transparent 32%),
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.12), transparent 28%),
    linear-gradient(180deg, #f7fbff 0%, #edf5ff 100%);
  color: #0f172a;
}

.checkout-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 88px;
}

.checkout-shell-narrow {
  width: min(820px, calc(100% - 32px));
}

.checkout-hero {
  max-width: 720px;
  margin-bottom: 28px;
}

.checkout-hero h1 {
  margin: 0 0 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.05;
}

.checkout-hero p:last-child {
  margin: 0;
  color: rgba(15, 23, 42, 0.74);
  font-size: 1.04rem;
}

.checkout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 24px;
}

.checkout-card {
  padding: 28px;
  border-radius: 24px;
}

.checkout-price-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1f6fe5, #0ea5e9);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.checkout-program-meta,
.result-details-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.result-details-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.checkout-meta-card {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.checkout-meta-card span {
  display: block;
  margin-bottom: 6px;
  color: rgba(15, 23, 42, 0.62);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.checkout-meta-card strong {
  display: block;
  font-size: 1rem;
  line-height: 1.45;
}

.checkout-form {
  display: grid;
  gap: 14px;
}

.checkout-summary-panel {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(31, 111, 229, 0.08), rgba(14, 165, 233, 0.04));
  border: 1px solid rgba(31, 111, 229, 0.12);
}

.checkout-summary-panel span {
  display: block;
  margin-bottom: 4px;
  color: rgba(15, 23, 42, 0.62);
  font-size: 0.84rem;
}

.checkout-summary-panel strong {
  font-size: 1rem;
}

.checkout-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.checkout-action-row .btn {
  min-height: 48px;
}

.result-card {
  padding: 36px;
  border-radius: 28px;
  text-align: center;
}

.result-card h1 {
  margin: 0 0 12px;
  font-family: "Space Grotesk", sans-serif;
}

.result-card p {
  margin: 0;
}

.result-card-success {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(226, 251, 236, 0.92));
}

.result-card-failed {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 238, 235, 0.92));
}

.result-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(31, 111, 229, 0.1);
  color: #1f6fe5;
  font-weight: 700;
}

.result-support {
  margin-top: 18px;
  color: rgba(15, 23, 42, 0.72);
}

@media (max-width: 900px) {
  .checkout-grid,
  .checkout-program-meta,
  .result-details-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .checkout-shell,
  .checkout-shell-narrow {
    width: min(100% - 20px, 100%);
    padding: 32px 0 56px;
  }

  .checkout-card,
  .result-card {
    padding: 22px;
    border-radius: 22px;
  }

  .checkout-action-row .btn {
    width: 100%;
  }
}