.checkout{
  padding: 150px 0 120px;
  min-height: 100vh;
}
.checkout-grid{
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 8vw;
  align-items: flex-start;
}
.checkout-head{
  margin-bottom: 44px;
}
.checkout-head .eyebrow{ display: block; margin-bottom: 14px; }
.checkout-head h1{
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  font-style: italic;
  font-weight: 400;
}

.co-section{
  margin-bottom: 40px;
}
.co-section-label{
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
  margin-bottom: 18px;
  display: block;
}
.co-field-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.co-field{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.co-field.full{ grid-column: 1 / -1; }
.co-field label{
  font-size: 0.78rem;
  color: var(--cream-dim);
}
.co-field input, .co-field select{
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--hairline-strong);
  color: var(--cream);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  padding: 10px 2px;
  transition: border-color .25s var(--ease);
}
.co-field input:focus, .co-field select:focus{
  border-color: var(--gold-bright);
  outline: none;
}

.pay-methods{
  display: flex;
  gap: 12px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.pay-methods label{
  border: 1px solid var(--hairline-strong);
  padding: 12px 18px;
  font-size: 0.85rem;
  color: var(--cream-dim);
  cursor: pointer;
  transition: all .25s var(--ease);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pay-methods input{ accent-color: var(--gold); }
.pay-methods label:has(input:checked){
  border-color: var(--gold-bright);
  color: var(--cream);
}

.co-placeholder-note{
  border: 1px dashed var(--hairline-strong);
  padding: 18px 20px;
  font-size: 0.85rem;
  color: var(--cream-dim);
  line-height: 1.6;
  margin-top: 8px;
}
.co-placeholder-note strong{ color: var(--gold-bright); font-weight: 500; }

.order-summary{
  background: var(--espresso);
  border: 1px solid var(--hairline);
  padding: 32px;
  position: sticky;
  top: 110px;
}
.order-summary h3{
  font-size: 1.2rem;
  font-style: italic;
  margin-bottom: 24px;
}
.os-item{
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}
.os-item img{
  width: 56px; height: 68px;
  object-fit: cover;
  filter: sepia(.35) saturate(1.3) brightness(.8) contrast(1.05);
}
.os-item .os-name{ font-size: 0.9rem; }
.os-item .os-meta{ font-size: 0.76rem; color: var(--cream-dim); }
.os-item .os-price{ font-size: 0.88rem; color: var(--gold-bright); }

.os-totals{
  margin-top: 20px;
  padding-top: 16px;
}
.os-row{
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--cream-dim);
  margin-bottom: 10px;
}
.os-row.grand{
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline-strong);
}
.order-summary .btn{
  width: 100%;
  justify-content: center;
  margin-top: 24px;
}

.co-empty{
  text-align: center;
  padding: 100px 0;
}
.co-empty p{ color: var(--cream-dim); margin: 16px 0 30px; }

@media (max-width: 900px){
  .checkout{ padding: 110px 0 80px; }
  .checkout-grid{ grid-template-columns: 1fr; gap: 50px; }
  .order-summary{ position: static; }
  .co-field-row{ grid-template-columns: 1fr; }
}