.kdc-builder {
  --kdc-navy: #19233f;
  --kdc-gold: #be7b2e;
  --kdc-gold-soft: #fff6ec;
  --kdc-line: #eadfce;
  --kdc-muted: #6b7280;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 22px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 15px 10px;
  text-align: left;
}

.kdc-builder__config,
.kdc-builder__summary {
  background: #fff;
  border: 1px solid var(--kdc-line);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(25, 35, 63, 0.06);
}

.kdc-builder__config { padding: 22px; }
.kdc-builder__summary {
  padding: 22px 22px 18px;
  align-self: start;
  position: sticky;
  top: 88px;
}

.kdc-builder__os-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.kdc-builder__os-tab,
.kdc-builder__billing button,
.kdc-builder__block-head,
.kdc-qty button {
  font: inherit;
  cursor: pointer;
}

.kdc-builder__os-tab {
  border: 1px solid var(--kdc-line);
  background: #faf8f5;
  color: var(--kdc-navy);
  border-radius: 10px;
  padding: 14px 12px;
  font-weight: 700;
}

.kdc-builder__os-tab.is-active {
  background: var(--kdc-gold-soft);
  border-color: var(--kdc-gold);
  color: var(--kdc-gold);
}

.kdc-builder__os-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.kdc-builder__os {
  border: 0;
  background: #f4f1ea;
  color: var(--kdc-navy);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.kdc-builder__os.is-active {
  background: var(--kdc-gold-soft);
  color: var(--kdc-gold);
  box-shadow: inset 0 0 0 1px var(--kdc-gold);
}

.kdc-builder__block {
  border: 1px solid #d9e2ee;
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  background: #fff;
}

.kdc-builder__block-head {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border: 0;
  background: #fff;
  color: var(--kdc-navy);
  font-weight: 700;
  font-size: 14px;
}

.kdc-builder__block-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #7b8798;
  font-size: 13px;
  font-weight: 600;
}

.kdc-builder__block-action::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-135deg);
  margin-top: 4px;
}

.kdc-builder__block-head[aria-expanded="false"] .kdc-builder__block-action::after {
  transform: rotate(45deg);
  margin-top: -2px;
}

.kdc-builder__block-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  padding: 0 14px 14px;
}

.kdc-builder__block.is-collapsed .kdc-builder__block-body { display: none; }

#kdcPanels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#kdcPanels .kdc-choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

#kdcPanels .kdc-choice-grid:not(:has(.kdc-panel:not(.is-hidden))) {
  display: none;
}

#kdcExtras {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#kdcExtras .kdc-choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.kdc-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 22px;
  align-items: start;
}

.kdc-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.kdc-stack:not(:has(.kdc-panel:not(.is-hidden), .kdc-extra:not(.is-hidden))) {
  display: none;
}

.kdc-addon {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2px 12px;
  align-items: center;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid #e6ebf2;
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

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

.kdc-addon__name {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: #2b3445;
}

.kdc-addon__domains {
  font-size: 13px;
  font-weight: 600;
  color: #5c6b80;
  white-space: nowrap;
}

.kdc-addon__price {
  grid-column: 1;
  font-size: 12px;
  color: var(--kdc-gold);
  font-weight: 700;
}

.kdc-switch {
  grid-row: 1 / span 2;
  grid-column: 2;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: #e5e7eb;
  position: relative;
}

.kdc-switch::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  top: 3px;
  left: 3px;
  transition: transform 0.15s ease;
}

.kdc-addon input:checked + .kdc-switch { background: var(--kdc-gold); }
.kdc-addon input:checked + .kdc-switch::after { transform: translateX(18px); }

.kdc-addon--qty { cursor: default; }

.kdc-qty {
  grid-row: 1 / span 2;
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.kdc-qty button {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--kdc-line);
  background: #fff;
  color: var(--kdc-navy);
}

.kdc-qty strong { min-width: 12px; text-align: center; color: var(--kdc-navy); }
.kdc-qty button:disabled { opacity: 0.35; cursor: default; }

.kdc-builder__resources {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 22px;
  margin-bottom: 16px;
}

.kdc-resource { margin: 0; }

.kdc-resource__top {
  display: flex;
  justify-content: space-between;
  color: var(--kdc-navy);
  font-weight: 800;
  margin-bottom: 6px;
}

.kdc-resource input[type="range"] {
  width: 100%;
  accent-color: var(--kdc-gold);
}

.kdc-port {
  display: grid;
  gap: 6px;
}

.kdc-port__opt {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  gap: 8px;
  align-items: center;
  margin: 0;
  padding: 7px 10px;
  border: 1px solid var(--kdc-line);
  border-radius: 8px;
  background: #fff;
  color: var(--kdc-navy);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

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

.kdc-port__mark {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid #d5d0c8;
  background: #fff;
  position: relative;
}

.kdc-port__opt input:checked + .kdc-port__mark {
  border-color: var(--kdc-gold);
}

.kdc-port__opt input:checked + .kdc-port__mark::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--kdc-gold);
  top: 2px;
  left: 2px;
}

.kdc-port__opt:has(input:checked) {
  border-color: var(--kdc-gold);
  background: var(--kdc-gold-soft);
}

.kdc-port__price {
  color: var(--kdc-gold);
  font-size: 12px;
}

.kdc-builder__total-label {
  text-align: center;
  color: var(--kdc-muted);
  font-size: 14px;
}

.kdc-builder__total {
  text-align: center;
  color: var(--kdc-navy);
  font-size: 40px;
  font-weight: 800;
  line-height: 1.1;
  margin: 4px 0 12px;
}

.kdc-builder__billing {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 14px;
}

.kdc-builder__billing button {
  border: 1px solid var(--kdc-line);
  background: #fff;
  color: var(--kdc-navy);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 700;
}

.kdc-builder__billing button.is-active {
  background: var(--kdc-navy);
  border-color: var(--kdc-navy);
  color: #fff;
}

.kdc-builder__cart {
  display: block;
  text-align: center;
  background: var(--kdc-gold);
  color: #fff !important;
  border-radius: 8px;
  padding: 12px 16px;
  font-weight: 800;
  text-decoration: none;
  margin-bottom: 18px;
}

.kdc-builder__cart:hover { background: #a66a24; }

.kdc-builder__summary h3 {
  font-size: 16px;
  color: var(--kdc-navy);
  margin: 0 0 12px;
}

.kdc-builder__lines {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kdc-builder__lines li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  padding: 8px 0;
  border-bottom: 1px dashed #efe6da;
  font-size: 13px;
  color: #4b5563;
}

.kdc-builder__lines strong {
  color: var(--kdc-navy);
  font-weight: 700;
}

.kdc-builder .is-hidden { display: none; }

@media (max-width: 900px) {
  .kdc-builder { grid-template-columns: 1fr; }
  .kdc-builder__summary { position: static; }
  .kdc-builder__block-body,
  .kdc-builder__resources,
  .kdc-cols,
  #kdcPanels .kdc-choice-grid,
  #kdcExtras .kdc-choice-grid { grid-template-columns: 1fr; }
}