.checkout-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.checkout-card {
  width: 100%; max-width: 440px;
  background: rgba(15,23,42,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 2px solid var(--brand-cyan);
  border-radius: 1rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
  padding: 2rem;
}
.checkout-card h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--text-main); }
.checkout-summary {
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 0.5rem; padding: 1.5rem; margin: 1.5rem 0;
}
.checkout-row { display: flex; justify-content: space-between; padding: 0.375rem 0; }
.checkout-row .label { color: var(--text-muted); }
.checkout-row .value { font-weight: 500; color: var(--text-main); }
.checkout-row.total { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 0.75rem; margin-top: 0.375rem; }
.checkout-row.total .value { font-size: 1.125rem; font-weight: 700; color: var(--brand-cyan); }