.section {
  position: relative;
  margin-top: 24px;
  padding: 26px;
  border: 1px solid rgba(247, 215, 116, 0.18);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    rgba(9, 9, 9, 0.9);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.42);
  overflow: hidden;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(247, 215, 116, 0.06), transparent 48%);
}

.section > * {
  position: relative;
  z-index: 1;
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(340px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.checkout-main {
  display: grid;
  gap: 0;
}

.checkout-sidebar {
  position: sticky;
  top: 112px;
}

.section h2 {
  margin: 0 0 16px;
  font-size: clamp(1.55rem, 2.3vw, 2.25rem);
}

.section-title-center {
  display: block;
  text-align: center;
}

.tier-grid,
.device-grid,
.service-type-grid,
.method-grid,
.summary-grid,
.activation-grid {
  display: grid;
  gap: 18px;
  align-items: stretch;
  grid-auto-rows: 1fr;
}

.tier-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.device-grid,
.service-type-grid,
.summary-grid,
.activation-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.method-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-type-option,
.tier-option,
.device-option,
.method-card,
.summary-card,
.activation-card {
  position: relative;
  min-width: 0;
  height: 100%;
  border: 1px solid rgba(247, 215, 116, 0.16);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    rgba(12, 12, 12, 0.92);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.32);
  overflow: hidden;
}

.service-type-option input,
.tier-option input,
.device-option input,
.method-option input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.service-type-option label,
.tier-option label,
.device-option label,
.method-option label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100%;
  padding: 18px;
  cursor: pointer;
  text-align: center;
}

.service-type-option strong,
.tier-option strong,
.device-option strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 800;
}

.service-type-option span,
.tier-option span,
.device-option span,
.method-card p,
.summary-card p,
.activation-card p,
.field-note,
.status {
  color: var(--muted);
  line-height: 1.6;
}

.tier-option .price-list {
  margin-top: 12px;
}

.tier-option .price-list strong {
  display: inline;
  margin: 0;
  color: var(--gold);
  font-family: var(--body-font);
  font-size: 0.9rem;
  font-weight: 800;
}

.service-type-option input:checked + label,
.tier-option input:checked + label,
.device-option input:checked + label,
.method-option input:checked + label,
.service-type-option.is-selected label,
.tier-option.is-selected label,
.device-option.is-selected label,
.method-option.is-selected label {
  background: linear-gradient(180deg, rgba(247, 215, 116, 0.16), rgba(247, 215, 116, 0.04));
  box-shadow: inset 0 0 0 1px rgba(247, 215, 116, 0.54), 0 0 30px rgba(247, 215, 116, 0.12);
}

.method-card,
.summary-card,
.activation-card {
  padding: 20px;
}

.method-option label {
  justify-content: flex-start;
}

.method-card h3,
.summary-card h3,
.activation-card h3 {
  width: 100%;
  color: var(--text);
  text-align: center;
}

.media-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 320px);
  aspect-ratio: 1 / 1;
  min-height: 0;
  padding: 14px;
  margin: 12px auto 0;
  border: 1px solid rgba(247, 215, 116, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
  overflow: hidden;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 14px 24px rgba(0, 0, 0, 0.28));
}

.summary-panel {
  margin-top: 24px;
}

.summary-note {
  margin-top: 0;
  margin-bottom: 16px;
}

.summary-stack {
  display: grid;
  gap: 12px;
}

.summary-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid rgba(247, 215, 116, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.summary-line span {
  color: var(--muted);
}

.summary-line strong {
  color: var(--text);
  text-align: right;
}

.summary-line-total {
  border-color: rgba(247, 215, 116, 0.32);
  background: rgba(247, 215, 116, 0.08);
}

.order-number-box,
.payment-instructions {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  padding: 18px;
  border: 1px solid rgba(247, 215, 116, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.order-number-label {
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.order-number-box strong {
  color: var(--text);
  font-size: 1.08rem;
  word-break: break-word;
}

.summary-actions {
  margin-top: 20px;
}

.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 200px;
  padding: 24px;
  border: 1px dashed rgba(247, 215, 116, 0.28);
  border-radius: var(--radius);
  color: var(--muted);
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
}

.terms-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(247, 215, 116, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.terms-row input {
  width: auto;
  min-height: 0;
  margin-top: 5px;
}

.inline-value {
  color: var(--gold);
  font-weight: 800;
  text-decoration: none;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

input[type="file"] {
  padding: 12px 14px;
  min-height: 52px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(8px);
}

.modal-backdrop.is-open {
  display: flex;
}

.modal {
  width: min(680px, 100%);
  padding: 24px;
  border: 1px solid rgba(247, 215, 116, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    rgba(12, 12, 12, 0.96);
  box-shadow: var(--shadow);
}

.modal h2 {
  margin-top: 0;
}

.receipt-box {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid rgba(247, 215, 116, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

.receipt-box p {
  margin: 0;
}

@media (max-width: 980px) {
  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .checkout-sidebar {
    position: static;
  }

  .tier-grid,
  .device-grid,
  .service-type-grid,
  .method-grid,
  .summary-grid,
  .activation-grid,
  .field-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .section,
  .modal {
    padding: 20px;
  }

  .tier-grid,
  .device-grid,
  .service-type-grid,
  .method-grid,
  .summary-grid,
  .activation-grid,
  .field-row {
    grid-template-columns: 1fr;
  }
}