/* ==========================================================================
   ARKS International — Product Details Page
   ========================================================================== */

.pd-gallery-main { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 1/1; background: var(--color-light-gray); cursor: zoom-in; }
.pd-gallery-main img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s var(--ease-soft); }
.pd-gallery-main.is-zoomed img { transform: scale(1.8); }
.pd-thumbs { display: flex; gap: .75rem; margin-top: 1rem; }
.pd-thumb { width: 84px; height: 84px; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid transparent; cursor: pointer; flex-shrink: 0; opacity: .7; transition: all var(--dur-fast) var(--ease-soft); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.active, .pd-thumb:hover { border-color: var(--color-teal); opacity: 1; }

.pd-title-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.pd-price-tag { font-family: var(--font-heading); font-size: 1.3rem; color: var(--color-navy); font-weight: 700; }

.pd-spec-table { width: 100%; border-collapse: collapse; }
.pd-spec-table tr { border-bottom: 1px solid var(--color-light-gray); }
.pd-spec-table td { padding: .9rem .5rem; font-size: .93rem; }
.pd-spec-table td:first-child { color: var(--text-muted); font-weight: 600; width: 40%; }
.pd-spec-table td:last-child { color: var(--text-heading); font-weight: 600; }

.pd-sticky-cta { position: sticky; top: calc(var(--header-height) + 24px); }
.pd-tab-btn { padding: .85rem 1.4rem; border: none; background: none; font-weight: 700; color: var(--text-muted); border-bottom: 2px solid transparent; }
.pd-tab-btn.active { color: var(--color-navy); border-color: var(--color-teal); }

.download-item { display: flex; align-items: center; gap: 1rem; background: #fff; border: 1px solid rgba(10,61,98,.08); border-radius: var(--radius-md); padding: 1rem 1.25rem; transition: all var(--dur-fast) var(--ease-soft); }
.download-item:hover { border-color: var(--color-teal); box-shadow: var(--shadow-sm); }
.download-item .file-icon { width: 46px; height: 46px; border-radius: 10px; background: rgba(0,168,168,.1); color: var(--color-teal); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }

.sticky-inquiry-bar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 850; background: #fff; box-shadow: 0 -8px 30px rgba(10,61,98,.12); padding: .9rem 0; transform: translateY(100%); transition: transform var(--dur-med) var(--ease-premium); }
.sticky-inquiry-bar.is-visible { transform: translateY(0); }