.ferrus-detail {
  --fd-outline: #d6d8df;
  --fd-accent: #ba1a1a;
  --fd-surface-soft: #eceef1;
  --fd-text: #191c1e;
  --fd-text-soft: #616b7c;
  --fd-dark: #111827;
  --fd-radius: 12px;
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto 64px;
  color: var(--fd-text);
}

.ferrus-detail .icon {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  flex: 0 0 auto;
}

.ferrus-detail .product-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 64px;
}

.ferrus-detail .gallery-wrap {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
}

.ferrus-detail .gallery-thumbs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ferrus-detail .thumb {
  border: 1px solid transparent;
  background: var(--fd-surface-soft);
  border-radius: 8px;
  overflow: hidden;
  padding: 0;
  cursor: pointer;
}

.ferrus-detail .thumb img {
  display: block;
  width: 100%;
  height: auto;
}

.ferrus-detail .thumb.is-active {
  border-color: var(--fd-dark);
}

.ferrus-detail .gallery-main {
  position: relative;
  background: var(--fd-surface-soft);
  border-radius: var(--fd-radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}

.ferrus-detail .gallery-main img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ferrus-detail .badge-stack {
  position: absolute;
  left: 18px;
  top: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ferrus-detail .badge-stack span {
  background: #fff;
  padding: 5px 9px;
  font-size: 0.58rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  font-weight: 800;
  border-radius: 6px;
}

.ferrus-detail .product-meta h1 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.ferrus-detail .sku {
  display: block;
  margin-bottom: 14px;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #7a7d88;
  font-weight: 800;
}

.ferrus-detail .price-line {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 14px;
}

.ferrus-detail .price-line strong {
  font-size: 2rem;
  letter-spacing: -0.03em;
}

.ferrus-detail .price-line span {
  color: #8f94a1;
  text-decoration: line-through;
}

.ferrus-detail .stock {
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #0a8f3f;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 800;
}

.ferrus-detail .quick-specs {
  margin-bottom: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-radius: var(--fd-radius);
  overflow: hidden;
  border: 1px solid var(--fd-outline);
}

.ferrus-detail .quick-specs div {
  padding: 12px;
  background: #f1f3f6;
  border: 1px solid var(--fd-outline);
}

.ferrus-detail .quick-specs small {
  display: block;
  margin-bottom: 4px;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7a7d88;
  font-weight: 800;
}

.ferrus-detail .quick-specs b {
  font-size: 0.86rem;
}

.ferrus-detail .actions {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.ferrus-detail .qty-control {
  height: 54px;
  border-radius: 10px;
  background: #eceef1;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
}

.ferrus-detail .qty-control button {
  border: none;
  background: transparent;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  color: #6d7382;
}

.ferrus-detail .qty-input-detail {
  min-width: 34px;
  width: 34px;
  border: 0;
  background: transparent;
  text-align: center;
  font-weight: 700;
}

.ferrus-detail .qty-input-detail:focus {
  outline: none;
}

.ferrus-detail .qty-input-detail::-webkit-inner-spin-button,
.ferrus-detail .qty-input-detail::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.ferrus-detail .qty-input-detail[type=number] {
  appearance: textfield;
  -moz-appearance: textfield;
}

.ferrus-detail .btn {
  border: 1px solid transparent;
  border-radius: 10px;
  min-height: 54px;
  padding: 0 16px;
  font-weight: 800;
  cursor: pointer;
  font-size: inherit;
  line-height: normal;
}

.ferrus-detail .btn-cart {
  flex: 1;
  background: var(--fd-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.ferrus-detail .btn-cart.in-basket {
  background: #d5d8de;
  color: #5f6572;
  border-color: #c3c8d3;
  cursor: pointer;
}

.ferrus-detail .btn-cart:disabled {
  background: #d5d8de;
  color: #5f6572;
  cursor: not-allowed;
}

.ferrus-detail .btn-ghost {
  width: 100%;
  background: #fff;
  border-color: #d5d7de;
  color: var(--fd-dark);
}

.ferrus-detail .meta-notes {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ferrus-detail .meta-notes div {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--fd-text-soft);
  font-size: 0.78rem;
}

.ferrus-detail .details {
  margin-bottom: 64px;
}

.ferrus-detail .tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid #d8dae1;
}

.ferrus-detail .tabs button {
  border: none;
  background: transparent;
  padding: 14px 20px;
  font-size: 0.67rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 800;
  color: #808593;
  white-space: nowrap;
}

.ferrus-detail .tabs button.is-active {
  color: var(--fd-text);
  border-bottom: 2px solid var(--fd-text);
}

.ferrus-detail .details-grid {
  padding-top: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.ferrus-detail .details-grid p {
  margin: 0 0 18px;
  color: var(--fd-text-soft);
  line-height: 1.65;
}

.ferrus-detail .details-grid ul {
  margin: 0;
  padding-left: 18px;
}

.ferrus-detail .details-grid li {
  margin-bottom: 9px;
}

.ferrus-detail .tech-table {
  background: #f2f4f7;
  border-radius: var(--fd-radius);
  padding: 20px;
}

.ferrus-detail .tech-table h3 {
  margin: 0 0 14px;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ferrus-detail .tech-table div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #d8dae1;
  font-size: 0.8rem;
}

.ferrus-detail .tech-table div:last-child {
  border-bottom: none;
}

.ferrus-detail .tech-table span {
  color: var(--fd-text-soft);
}

.ferrus-detail .tech-table b {
  text-transform: uppercase;
  font-size: 0.75rem;
}

@media (min-width: 1200px) {
  .ferrus-detail .product-layout {
    grid-template-columns: 1.2fr 1fr;
    gap: 46px;
  }

  .ferrus-detail .product-meta {
    position: sticky;
    top: 100px;
    align-self: start;
  }

  .ferrus-detail .details-grid {
    grid-template-columns: 1fr 0.62fr;
    gap: 46px;
  }
}