.book-container{
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 16px 80px;
}

.book-progress{
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-bottom: 24px;
}

.book-progress .step{
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  color: var(--text-muted);
  font-weight: 700;
  border: 1px solid var(--border);
}

.book-progress .step.active{
  background: var(--brand-grad);
  color: #1a1408;
}

.book-progress .step.done{
  background: rgba(235,212,145,.2);
  color: var(--gold-100);
}

.book-progress .line{
  width: 48px;
  height: 2px;
  background: rgba(235,212,145,.35);
}

.chip-group{
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip{
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  color: var(--text-muted);
  background: rgba(17,17,24,0.85);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  cursor: pointer;
  position: relative;
}

.chip input{
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chip span{
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.chip input:checked + span{
  color: #EBD491;
  border-radius: 999px;
  background: rgba(235,212,145,0.12);
  padding: 0.1rem 0.45rem;
}

.summary-card{
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 8px;
  background: rgba(17,17,24,0.85);
}

.checkout-cta{
  position: sticky;
  bottom: 12px;
  background: rgba(11,11,15,0.85);
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
}