.checkout-main {
  padding: 4rem 4vw 5rem;
  background: linear-gradient(135deg, rgba(46, 94, 170, 0.08), rgba(255, 157, 28, 0.08));
  min-height: calc(100vh - 120px);
  display: flex;
  justify-content: center;
}

.checkout-card {
  width: min(820px, 100%);
  background: #ffffff;
  border-radius: 24px;
  padding: 2.5rem clamp(1.5rem, 3vw, 3rem);
  box-shadow: 0 20px 60px rgba(12, 34, 75, 0.12);
  border: 1px solid rgba(46, 94, 170, 0.15);
}

.checkout-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--cerulean);
  margin: 0 0 0.75rem;
}

.checkout-card h1 {
  font-family: 'Poppins', system-ui, sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin: 0 0 1.5rem;
  color: var(--navy);
}

.checkout-summary {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  background: rgba(46, 94, 170, 0.06);
  border-radius: 16px;
  margin-bottom: 2rem;
}

.checkout-product {
  font-weight: 600;
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}

.checkout-sku {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 0.35rem;
  color: var(--navy);
}

.checkout-sku-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-right: 0.4rem;
}

.checkout-desc {
  margin: 0;
  color: var(--muted);
}

.checkout-price {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--navy);
}

.checkout-price-term {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  margin-left: 0.2rem;
}

.checkout-paypal {
  margin-top: 1rem;
}

.checkout-paypal-panel {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid rgba(46, 94, 170, 0.18);
  background: #ffffff;
  box-shadow: 0 14px 28px rgba(12, 34, 75, 0.08);
}

.checkout-paypal-label {
  margin: 0 0 0.75rem;
  font-weight: 600;
  color: var(--navy);
}

.checkout-status {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--navy);
}

.checkout-alert {
  background: rgba(255, 157, 28, 0.15);
  border: 1px solid rgba(255, 157, 28, 0.4);
  color: #5b3a00;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.checkout-alert.is-error {
  background: rgba(176, 59, 45, 0.12);
  border-color: rgba(176, 59, 45, 0.35);
  color: #8b2a1e;
}

.checkout-login-error {
  background: rgba(176, 59, 45, 0.12);
  border: 1px solid rgba(176, 59, 45, 0.35);
  color: #8b2a1e;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-size: 0.95rem;
}

.checkout-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.checkout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  background: var(--navy);
  color: #ffffff;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.checkout-btn-secondary {
  background: transparent;
  border: 1px solid rgba(12, 34, 75, 0.3);
  color: var(--navy);
}

.checkout-login {
  margin-top: 1.5rem;
  padding: 1.75rem;
  border-radius: 18px;
  border: 1px solid rgba(46, 94, 170, 0.18);
  background: #ffffff;
  box-shadow: 0 16px 30px rgba(12, 34, 75, 0.08);
}

.checkout-login h2 {
  margin: 0 0 1rem;
  font-family: 'Poppins', system-ui, sans-serif;
  color: var(--navy);
  font-size: 1.35rem;
}

.checkout-login-form {
  display: grid;
  gap: 1rem;
}

.checkout-field {
  display: grid;
  gap: 0.4rem;
}

.checkout-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.checkout-field input {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid rgba(46, 94, 170, 0.25);
  font-size: 0.95rem;
}

.checkout-remember {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.checkout-login-actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  .checkout-summary {
    flex-direction: column;
    align-items: flex-start;
  }
  .checkout-price {
    font-size: 1.7rem;
  }
}