.checkout-hero {
  padding: var(--space-20) var(--space-4) var(--space-12);
  text-align: center;
  background: radial-gradient(circle at top, rgba(255, 47, 88, 0.25), transparent 55%),
    linear-gradient(180deg, rgba(8, 8, 8, 0.95), rgba(0, 0, 0, 0.85));
}

.checkout-hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  color: var(--light);
  margin-bottom: var(--space-2);
}

.checkout-hero p {
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-muted);
}

.checkout-section {
  padding: var(--space-12) var(--space-4) var(--space-20);
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.95), rgba(5, 5, 5, 1));
}

.checkout-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.checkout-card {
  background: rgba(10, 10, 10, 0.92);
  border-radius: var(--radius-xl, 24px);
  padding: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: transform var(--transition, 250ms) ease, box-shadow var(--transition, 250ms) ease;
}

.checkout-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 47, 88, 0.25);
  opacity: 0;
  transition: opacity var(--transition-fast, 180ms) ease;
}

.checkout-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 32px 60px rgba(255, 47, 88, 0.2);
}

.checkout-card:hover::before {
  opacity: 1;
}

.checkout-card header h3 {
  font-size: 1.5rem;
  color: var(--light);
  margin-bottom: var(--space-2);
}

.checkout-card header p {
  color: var(--text-muted);
}

.price-line {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-weight: 700;
}

.price-line .amount {
  font-size: 2rem;
  color: var(--primary);
}

.price-line .interval {
  font-size: 0.9rem;
  color: var(--text-alt);
}

.product-features {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 var(--space-2);
  display: grid;
  gap: var(--space-3);
}

.product-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-alt);
}

.product-features i {
  color: var(--primary);
}

.btn-checkout {
  margin-top: auto;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-lg, 16px);
  border: none;
  background: var(--primary-gradient);
  color: var(--light);
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition-fast, 150ms) ease, box-shadow var(--transition-fast, 150ms) ease;
}

.btn-checkout:hover:not([disabled]) {
  transform: translateY(-2px);
  box-shadow: 0 18px 35px rgba(255, 47, 88, 0.3);
}

.btn-checkout[disabled] {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  cursor: not-allowed;
}

.checkout-status {
  text-align: center;
  margin-bottom: var(--space-6);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.checkout-success {
  min-height: 60vh;
  display: grid;
  place-items: center;
  padding: var(--space-16) var(--space-4);
  background: radial-gradient(circle at top, rgba(63, 196, 139, 0.35), transparent 60%),
    linear-gradient(180deg, rgba(6, 12, 8, 0.95), rgba(3, 7, 4, 1));
}

.success-card {
  background: rgba(6, 12, 8, 0.9);
  border-radius: var(--radius-xl, 24px);
  padding: var(--space-8);
  border: 1px solid rgba(63, 196, 139, 0.35);
  text-align: center;
  max-width: 520px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.success-card h1 {
  color: #5af2ba;
  margin-bottom: var(--space-4);
}

.success-card p {
  color: var(--text-alt);
  margin-bottom: var(--space-6);
}

.success-card a {
  color: var(--primary);
  font-weight: 700;
}

@media (max-width: 768px) {
  .checkout-hero {
    padding: var(--space-16) var(--space-4) var(--space-8);
  }
  .checkout-section {
    padding: var(--space-8) var(--space-4) var(--space-16);
  }
}