/* ==========================================================================
   ThorDrone DJI-Style Theme — Product Page Styles
   Single product detail, archive, taxonomy, specs, features, 404.
   All tokens are --td-* (see DJI-Style-Design-Spec.md).
   ========================================================================== */

/* --------------------------------------------------------------------------
   Product Detail Layout
   -------------------------------------------------------------------------- */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--td-space-5);
    margin-top: var(--td-space-3);
    margin-bottom: var(--td-space-8);
}

.product-detail__image {
    position: sticky;
    top: 80px;
    align-self: start;
}

.product-detail__image-wrap {
    position: relative;
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    aspect-ratio: 4 / 3;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail__image-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 70%, rgba(10, 10, 10, 0.12));
    pointer-events: none;
}

.product-detail__img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
}

.product-detail__badges {
    position: absolute;
    top: var(--td-space-2);
    left: var(--td-space-2);
    display: flex;
    flex-direction: column;
    gap: var(--td-space-1);
    z-index: 2;
}

.product-detail__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--td-space-1);
    margin-top: var(--td-space-3);
}

.product-detail__tag {
    font-family: var(--td-font-mono);
    font-size: 11px;
    color: var(--td-text-secondary);
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    padding: 4px 10px;
    border-radius: var(--td-radius-sm);
}

.product-detail__category {
    display: inline-block;
    margin-bottom: var(--td-space-2);
}

.product-detail__category a {
    font-family: var(--td-font-body);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--td-text-secondary);
    border: 1px solid var(--td-border);
    padding: 4px 12px;
    text-decoration: none;
    transition: all var(--td-duration-base) var(--td-ease);
}

.product-detail__category a:hover {
    border-color: var(--td-accent);
    color: var(--td-accent);
}

.product-detail__title {
    font-family: var(--td-font-display);
    font-size: clamp(24px, 3vw, 36px);
    font-weight: var(--td-fw-semibold);
    letter-spacing: var(--td-ls-tight);
    line-height: var(--td-lh-snug);
    color: var(--td-text-primary);
    margin-bottom: var(--td-space-2);
}

.product-detail__short-desc {
    font-size: 15px;
    line-height: var(--td-lh-relaxed);
    color: var(--td-text-secondary);
    margin-bottom: var(--td-space-4);
}

.product-detail__key-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--td-space-2);
    margin-bottom: var(--td-space-4);
}

.product-detail__key-spec {
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    border-left: 2px solid var(--td-text-primary);
    padding: var(--td-space-2) var(--td-space-3);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.product-detail__key-spec .data-label {
    font-family: var(--td-font-body);
    font-size: 10px;
    font-weight: var(--td-fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--td-text-tertiary);
}

.product-detail__key-spec .data-value {
    font-family: var(--td-font-mono);
    font-size: 15px;
    font-weight: var(--td-fw-semibold);
    color: var(--td-text-primary);
}

.product-detail__price-box {
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    padding: var(--td-space-4);
    margin-bottom: var(--td-space-4);
}

.product-detail__price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--td-space-2) 0;
    border-bottom: 1px solid var(--td-border);
}

.product-detail__price-row:last-of-type {
    border-bottom: none;
    margin-bottom: var(--td-space-3);
}

.product-detail__price-label {
    font-family: var(--td-font-body);
    font-size: 12px;
    font-weight: var(--td-fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--td-text-secondary);
}

.product-detail__price-value {
    font-family: var(--td-font-display);
    font-size: 22px;
    font-weight: var(--td-fw-bold);
    color: var(--td-text-primary);
}

.product-detail__price-unit {
    font-size: 13px;
    font-weight: var(--td-fw-regular);
    color: var(--td-text-secondary);
    margin-left: var(--td-space-1);
}

.product-detail__features {
    margin-bottom: var(--td-space-4);
}

.product-detail__section-title {
    font-family: var(--td-font-display);
    font-size: 16px;
    font-weight: var(--td-fw-semibold);
    letter-spacing: var(--td-ls-tight);
    color: var(--td-text-primary);
    margin-bottom: var(--td-space-3);
}

.product-detail__description,
.product-detail__specs,
.product-detail__related {
    margin-bottom: var(--td-space-8);
}

.product-detail__desc-content {
    font-size: 15px;
    line-height: var(--td-lh-relaxed);
    color: var(--td-text-primary);
}

.product-detail__desc-content p {
    margin-bottom: var(--td-space-3);
}

.product-detail__desc-content p:last-child {
    margin-bottom: 0;
}

.data-label {
    font-family: var(--td-font-body);
    font-size: 11px;
    font-weight: var(--td-fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--td-text-tertiary);
    display: block;
}

.data-value {
    font-family: var(--td-font-mono);
    font-size: 14px;
    font-weight: var(--td-fw-medium);
    color: var(--td-text-primary);
    display: block;
}

/* --------------------------------------------------------------------------
   Archive Page
   -------------------------------------------------------------------------- */
.archive-header {
    padding: var(--td-space-5) 0;
    border-bottom: 1px solid var(--td-border);
    margin-bottom: var(--td-space-5);
}

.archive-title {
    font-family: var(--td-font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: var(--td-fw-semibold);
    letter-spacing: var(--td-ls-tight);
    color: var(--td-text-primary);
    margin-bottom: var(--td-space-2);
}

.archive-description {
    color: var(--td-text-secondary);
    font-size: 15px;
    max-width: 700px;
    line-height: var(--td-lh-relaxed);
}

/* --------------------------------------------------------------------------
   Taxonomy Page
   -------------------------------------------------------------------------- */
.taxonomy-header {
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    border-left: 3px solid var(--td-text-primary);
    padding: var(--td-space-5);
    margin-bottom: var(--td-space-5);
}

.taxonomy-header__top {
    display: flex;
    align-items: flex-start;
    gap: var(--td-space-4);
    margin-bottom: var(--td-space-3);
}

.taxonomy-header__icon {
    width: 64px;
    height: 64px;
    background: var(--td-bg-primary);
    border: 1px solid var(--td-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--td-text-secondary);
    flex-shrink: 0;
}

.taxonomy-header__icon svg {
    width: 32px;
    height: 32px;
}

.taxonomy-header__info {
    flex: 1;
}

.taxonomy-header__title {
    font-family: var(--td-font-display);
    font-size: 28px;
    font-weight: var(--td-fw-semibold);
    letter-spacing: var(--td-ls-tight);
    color: var(--td-text-primary);
    margin-bottom: var(--td-space-1);
}

.taxonomy-header__count {
    font-family: var(--td-font-mono);
    font-size: 13px;
    color: var(--td-text-tertiary);
}

.taxonomy-header__desc {
    color: var(--td-text-secondary);
    font-size: 14px;
    line-height: var(--td-lh-relaxed);
    max-width: 800px;
}

/* --------------------------------------------------------------------------
   Search Results
   -------------------------------------------------------------------------- */
.search-query {
    color: var(--td-accent);
}

.no-results__icon {
    width: 80px;
    height: 80px;
    color: var(--td-text-tertiary);
    margin-bottom: var(--td-space-4);
}

.no-results__actions {
    display: flex;
    justify-content: center;
    gap: var(--td-space-3);
    flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   404 Page
   -------------------------------------------------------------------------- */
.error-404 {
    text-align: center;
    padding: var(--td-space-8) 0;
}

.error-404__visual {
    position: relative;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--td-bg-secondary);
    border: 1px solid var(--td-border);
    overflow: hidden;
    margin-bottom: var(--td-space-8);
}

.error-404__code {
    font-family: var(--td-font-display);
    font-size: 120px;
    font-weight: var(--td-fw-bold);
    color: var(--td-text-primary);
    letter-spacing: 0.05em;
    position: relative;
    z-index: 2;
}

.error-404__content {
    max-width: 640px;
    margin: 0 auto;
}

.error-404__title {
    font-family: var(--td-font-display);
    font-size: 32px;
    font-weight: var(--td-fw-semibold);
    color: var(--td-text-primary);
    margin-bottom: var(--td-space-3);
}

.error-404__desc {
    color: var(--td-text-secondary);
    font-size: 15px;
    line-height: var(--td-lh-relaxed);
    margin-bottom: var(--td-space-5);
}

.error-404__actions {
    display: flex;
    justify-content: center;
    gap: var(--td-space-3);
    flex-wrap: wrap;
    margin-bottom: var(--td-space-8);
}

.error-404__search {
    margin-bottom: var(--td-space-5);
}

.error-404__search-label {
    color: var(--td-text-secondary);
    font-size: 13px;
    margin-bottom: var(--td-space-2);
}

.error-404__categories {
    border-top: 1px solid var(--td-border);
    padding-top: var(--td-space-4);
}

.error-404__categories-label {
    color: var(--td-text-secondary);
    font-size: 13px;
    margin-bottom: var(--td-space-3);
}

.error-404__categories .filter-chips {
    justify-content: center;
}