.breadcrumb { border-bottom: 1px solid var(--line); background: #f8fafc; }
.breadcrumb .container { display: flex; flex-wrap: wrap; gap: 9px; padding: 14px 0; color: #667085; font-size: 14px; }
.breadcrumb a:hover { color: var(--slate); }

.product-section { padding: 48px 0 34px; }
.product-layout { display: grid; grid-template-columns: minmax(0, 0.96fr) minmax(0, 0.94fr); gap: 48px; align-items: start; }
.main-image { position: relative; overflow: hidden; border: 1px solid #e2e8f0; border-radius: 8px; background: #eef2f7; }
.main-image img, .product-video-player, .product-video-player iframe, .product-video-player video { width: 100%; aspect-ratio: 1.22 / 1; object-fit: cover; }
.product-video-player { position: relative; display: none; align-items: center; justify-content: center; background: #0f172a; }
.product-video-player.is-ready { display: flex; }
.product-video-player iframe, .product-video-player video { display: block; border: 0; }
.product-video-player iframe { height: auto; }
.product-image-video-play, .product-video-play { position: absolute; inset: 50% auto auto 50%; z-index: 2; width: 76px; height: 76px; border: 0; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; color: #ffffff; background: rgba(15, 23, 42, 0.82); box-shadow: 0 14px 36px rgba(15, 23, 42, 0.28); transform: translate(-50%, -50%); transition: 160ms ease; }
.product-image-video-play:hover, .product-video-play:hover { background: var(--slate); transform: translate(-50%, -50%) scale(1.04); }
.product-image-video-play [data-lucide], .product-video-play [data-lucide] { width: 30px; height: 30px; margin-left: 4px; fill: currentColor; stroke-width: 1.8; }
.product-video-player.is-playing .product-video-play { display: none; }
.thumb-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.thumb-button { border: 2px solid var(--line); border-radius: 8px; padding: 0; overflow: hidden; background: #ffffff; }
.thumb-button.active { border-color: var(--slate); }
.thumb-button img { width: 100%; aspect-ratio: 1.85 / 1; object-fit: cover; }

.product-info { padding-top: 0; }
.product-category-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tag { display: inline-flex; border-radius: 999px; padding: 5px 14px; color: var(--slate); background: #f0f4f8; font-size: 14px; line-height: 1.2; }
.product-category-tags .tag { max-width: 100%; border: 1px solid rgba(148, 163, 184, 0.18); color: #435168; background: rgba(248, 250, 252, 0.86); overflow-wrap: anywhere; cursor: pointer; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.88); transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease; }
.product-category-tags .tag:hover, .product-category-tags .tag:focus-visible { border-color: rgba(31, 41, 55, 0.32); color: #111827; background: #ffffff; box-shadow: 0 8px 22px rgba(15, 23, 42, 0.08); outline: 0; }
.product-info h1 { margin: 12px 0 6px; font-size: clamp(34px, 3.2vw, 42px); font-weight: 400; line-height: 1.13; letter-spacing: 0; }
.sku { margin: 0 0 24px; color: #344154; font-size: 14px; }
.description { margin: 0 0 24px; color: #14233a; font-size: 18px; line-height: 1.35; max-width: 590px; }
.feature-title { margin: 0 0 14px; font-size: 22px; font-weight: 700; line-height: 1.25; }
.feature-list { display: grid; gap: 9px; margin-bottom: 26px; }
.feature-item { display: flex; align-items: flex-start; gap: 10px; color: #13243b; font-size: 17px; line-height: 1.35; }
.feature-item [data-lucide] { width: 18px; height: 18px; margin-top: 2px; color: var(--slate); flex: 0 0 auto; stroke-width: 1.9; }
.action-row { display: grid; grid-template-columns: 1fr 70px; gap: 16px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 24px 0; }
.button { min-height: 48px; border: 1px solid transparent; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 24px; font-weight: 700; transition: 160ms ease; }
.button [data-lucide] { width: 18px; height: 18px; }
.button.dark { color: #ffffff; background: var(--slate); }
.button.light { color: var(--slate); border-color: #cbd5e1; background: #ffffff; }
.button.icon-only { padding: 0; }
.button:hover { transform: translateY(-1px); }
.downloads-panel { border-bottom: 1px solid var(--line); padding: 24px 0 26px; }
.downloads-panel h2 { margin: 0 0 16px; font-size: 22px; font-weight: 700; line-height: 1.25; }

.section { padding: 76px 0; background: #ffffff; }
.section-heading { max-width: 800px; margin: 0 auto 48px; text-align: center; }
.section-heading h2 { margin: 0 0 8px; font-size: clamp(34px, 4vw, 42px); font-weight: 400; line-height: 1.15; }
.section-heading p { margin: 0; color: #243449; font-size: 20px; }
.specs-section { padding-top: 40px; padding-bottom: 42px; background: #fbfcfd; }
.section-title { margin: 0 0 28px; font-size: 32px; font-weight: 400; line-height: 1.2; }
.spec-grid { overflow: hidden; border: 1px solid #cfd6df; border-radius: 8px; background: #ffffff; box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06); }
.spec-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.spec-table tr { border-bottom: 1px solid #d9dee6; }
.spec-table tr:last-child { border-bottom: 0; }
.spec-table th, .spec-table td { min-height: 56px; padding: 17px 22px; border-right: 1px solid #d9dee6; color: #344154; font-size: 16px; line-height: 1.45; vertical-align: middle; }
.spec-table th { width: 28%; background: #f2f4f7; color: #667085; font-weight: 400; text-align: left; }
.spec-table tr:first-child th, .spec-table tr:first-child td { background: #e6e8eb; }
.spec-table td { border-right: 0; background: #ffffff; color: #35445a; }
.download-list { display: grid; gap: 12px; }
.download-item { width: 100%; min-height: 62px; border: 1px solid var(--line); border-radius: 8px; display: flex; align-items: center; gap: 16px; padding: 12px 14px; color: var(--ink); background: #ffffff; text-align: left; }
.download-item strong { display: block; font-weight: 400; line-height: 1.25; }
.download-item span { color: var(--muted); font-size: 14px; }
.download-item [data-lucide] { width: 20px; height: 20px; color: var(--slate); flex: 0 0 auto; }
.related-section { padding: 62px 0; background: #f4f7fa; }
.related-section .section-heading { margin-bottom: 32px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 280px)); justify-content: center; gap: 20px; }
.related-card { min-width: 0; overflow: hidden; border: 1px solid rgba(203, 213, 225, 0.78); border-radius: 8px; display: flex; flex-direction: column; background: #ffffff; box-shadow: 0 8px 20px rgba(15, 23, 42, 0.09); transition: 180ms ease; }
.related-card:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(15, 23, 42, 0.14); }
.related-card img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background: #dfe5ec; }
.related-body { min-height: 0; display: flex; flex: 1; flex-direction: column; padding: 14px 16px 16px; }
.related-body > span { display: block; overflow: hidden; margin-bottom: 6px; color: #526175; font-size: 12px; line-height: 1.3; text-overflow: ellipsis; white-space: nowrap; }
.related-body h3 { display: -webkit-box; overflow: hidden; margin: 0 0 8px; min-height: 0; color: var(--ink); font-size: 18px; font-weight: 700; line-height: 1.32; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.related-body p { display: -webkit-box; overflow: hidden; margin: 0 0 14px; min-height: 0; color: #344154; font-size: 14px; line-height: 1.45; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.related-body strong { display: inline-flex; align-items: center; gap: 7px; margin-top: auto; color: var(--slate); font-size: 14px; font-weight: 700; }
.related-body [data-lucide] { width: 16px; height: 16px; }
.cta-section { background: #f4f7fa; padding: 42px 0 66px; }
.technical-cta { border-radius: 8px; padding: 32px 24px; color: #ffffff; background: var(--slate); text-align: center; }
.technical-cta h2 { margin: 0 0 8px; font-size: 28px; font-weight: 700; line-height: 1.25; }
.technical-cta p { margin: 0 0 26px; font-size: 20px; line-height: 1.4; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.button.inverse { min-width: 180px; color: #111827; background: #ffffff; }
.button.outline { min-width: 208px; color: #ffffff; border-color: rgba(255, 255, 255, 0.35); background: var(--slate-soft); }

.toast { position: fixed; left: 50%; bottom: 28px; z-index: 100; max-width: min(520px, calc(100vw - 32px)); padding: 12px 16px; border-radius: 8px; color: #ffffff; background: var(--brand-black); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 10px); transition: 180ms ease; }
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 560ms ease, transform 560ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 920px) {
  .product-layout { grid-template-columns: 1fr; }
  .related-grid { max-width: 620px; margin-inline: auto; }
}

@media (max-width: 640px) {
  .product-section, .section { padding: 48px 0; }
  .product-layout { gap: 32px; }
  .related-section { padding: 46px 0; }
  .related-grid { grid-template-columns: 1fr; max-width: 420px; }
  .thumb-grid { grid-template-columns: repeat(3, 1fr); }
  .action-row { grid-template-columns: 1fr 58px; gap: 10px; }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table th, .spec-table td { border-right: 0; padding: 13px 16px; }
  .spec-table th { border-bottom: 1px solid #d9dee6; }
  .technical-cta { padding: 28px 18px; }
  .technical-cta p { font-size: 17px; }
  .button.inverse, .button.outline { width: 100%; }
}