.product-page { background: radial-gradient(circle at 78% 5%, rgba(14,116,220,.12), transparent 30rem), var(--bg); }
.product-nav { display: flex; align-items: center; gap: 25px; margin-left: auto; }
.product-nav a { color: #b8c8d8; font-size: .86rem; font-weight: 700; text-decoration: none; }
.product-nav a:hover { color: white; }
.breadcrumbs { display: flex; align-items: center; gap: 10px; padding-block: 24px 18px; color: var(--muted-2); font-size: .78rem; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: white; }
.breadcrumbs span:last-child { color: #c9d8e7; }
.product-hero { padding: 12px 0 84px; border-bottom: 1px solid var(--line); }
.product-layout { display: grid; grid-template-columns: minmax(0,1.04fr) minmax(440px,.96fr); gap: clamp(42px,6vw,82px); align-items: start; }
.gallery { position: sticky; top: 108px; min-width: 0; }
.gallery-main { position: relative; aspect-ratio: 1/.94; overflow: hidden; border: 1px solid #244563; border-radius: 28px; background: #091726; box-shadow: 0 35px 80px rgba(0,0,0,.25); }
.gallery-main::after { content: ""; position: absolute; inset: auto 0 0; height: 26%; pointer-events: none; background: linear-gradient(to top,rgba(3,9,19,.45),transparent); }
.gallery-main img { display: block; width: 100%; height: 100%; object-fit: cover; }
.gallery-label { position: absolute; z-index: 2; top: 18px; left: 18px; padding: 7px 11px; border: 1px solid rgba(135,204,255,.25); border-radius: 8px; background: rgba(5,16,29,.72); color: #bfe4ff; backdrop-filter: blur(10px); font-size: .7rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(3,1fr); gap: 11px; margin-top: 12px; }
.gallery-thumb { position: relative; aspect-ratio: 1.35; overflow: hidden; padding: 0; border: 1px solid var(--line); border-radius: 12px; background: #0b1928; cursor: pointer; }
.gallery-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: .72; transition: opacity .15s,transform .2s; }
.gallery-thumb:hover img { opacity: 1; transform: scale(1.03); }
.gallery-thumb.active { border-color: var(--blue-bright); box-shadow: 0 0 0 2px rgba(21,147,255,.16); }
.gallery-thumb.active img { opacity: 1; }
.buy-panel { padding-top: 12px; }
.buy-panel h1 { max-width: 650px; font-size: clamp(2.55rem,4.2vw,4.65rem); }
.buy-panel h1::after { content: ""; display: block; width: 72px; height: 4px; margin-top: 22px; border-radius: 8px; background: linear-gradient(90deg,var(--blue),transparent); }
.product-intro { max-width: 680px; margin: 22px 0; color: #bed0e1; font-size: 1rem; line-height: 1.75; }
.quick-facts { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.quick-facts li { position: relative; padding-left: 25px; color: var(--muted); font-size: .86rem; }
.quick-facts li::before { content: "✓"; position: absolute; left: 0; top: 1px; display: grid; place-items: center; width: 17px; height: 17px; border-radius: 50%; background: rgba(56,211,163,.13); color: var(--green); font-size: .65rem; font-weight: 900; }
.availability { display: flex; align-items: center; gap: 12px; margin-top: 25px; padding: 13px 15px; border: 1px solid #264a44; border-radius: 11px; background: rgba(24,74,63,.2); }
.availability > span { width: 9px; height: 9px; flex: 0 0 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px rgba(56,211,163,.6); }
.availability strong,.availability small { display: block; }
.availability strong { color: #aee9d7; font-size: .8rem; }
.availability small { margin-top: 2px; color: #759d93; font-size: .7rem; line-height: 1.45; }
.price-block { display: grid; margin: 27px 0 25px; }
.price-block span { color: white; font: 700 clamp(1.7rem,3vw,2.3rem) 'Space Grotesk',sans-serif; letter-spacing: -.04em; }
.price-block small { color: var(--muted-2); font-size: .76rem; }
.addons { display: grid; gap: 9px; margin: 0; padding: 0; border: 0; }
.addons[hidden] { display: none; }
.addons legend { width: 100%; margin-bottom: 2px; color: white; font: 700 1rem 'Space Grotesk',sans-serif; }
.addons legend span { margin-left: 6px; color: var(--blue-bright); font: 700 .67rem 'Manrope',sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.addons > p { margin: 0 0 8px; color: var(--muted-2); font-size: .76rem; }
.addon-option { display: grid; grid-template-columns: 22px 48px minmax(0,1fr) auto; align-items: center; gap: 12px; min-height: 70px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 12px; background: rgba(12,25,40,.75); cursor: pointer; transition: border-color .15s,background .15s; }
.addon-option:first-of-type { grid-template-columns: 22px minmax(0,1fr) auto; }
.addon-option:hover { border-color: #356488; }
.addon-option.selected { border-color: #258bdc; background: rgba(18,65,105,.32); box-shadow: inset 0 0 0 1px rgba(37,139,220,.18); }
.addon-option input { position: absolute; opacity: 0; pointer-events: none; }
.option-check { display: grid; place-items: center; width: 19px; height: 19px; border: 1px solid #4b6781; border-radius: 50%; }
.selected .option-check { border-color: var(--blue-bright); }
.selected .option-check::after { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--blue-bright); box-shadow: 0 0 8px rgba(72,184,255,.5); }
.addon-option img { width: 48px; height: 48px; border-radius: 8px; object-fit: cover; }
.option-copy,.option-copy strong,.option-copy small { display: block; min-width: 0; }
.option-copy strong { font-size: .82rem; }
.option-copy small { margin-top: 2px; overflow: hidden; color: var(--muted-2); font-size: .69rem; text-overflow: ellipsis; white-space: nowrap; }
.option-price { color: #cde6f8; font-size: .7rem; font-weight: 800; text-align: right; }
.activation-callout { display: flex; align-items: center; gap: 14px; margin-top: 20px; padding: 14px; border: 1px solid #654e27; border-radius: 12px; background: linear-gradient(100deg,rgba(96,62,13,.32),rgba(20,28,37,.5)); }
.activation-callout .notice-icon { width: 39px; height: 39px; flex-basis: 39px; font-size: .72rem; }
.activation-callout strong { color: #ffe0a4; font-size: .78rem; line-height: 1.45; }
.configuration { display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
.configuration span,.configuration strong { display: block; }
.configuration span { color: var(--muted-2); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.configuration strong { margin-top: 3px; font-size: .82rem; }
.add-button { min-width: 160px; border: 0; cursor: pointer; }
.demo-feedback { min-height: 22px; margin: 10px 0 0; color: var(--green); font-size: .77rem; font-weight: 700; text-align: right; }
.demo-note { margin: 0; color: #637a91; font-size: .68rem; text-align: right; }
.product-content { padding: 86px 0; }
.content-grid { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(300px,.6fr); gap: 20px; align-items: start; }
.description-card,.spec-card { border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(145deg,rgba(15,30,47,.92),rgba(8,19,31,.92)); }
.description-card { padding: clamp(27px,4vw,48px); }
.description-card h2 { max-width: 690px; font-size: clamp(2rem,3vw,3.1rem); }
.description-card > p:not(.eyebrow) { max-width: 790px; margin: 22px 0 0; color: var(--muted); font-size: .94rem; line-height: 1.8; }
.feature-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-top: 32px; }
.feature-item { min-height: 145px; padding: 20px; border: 1px solid #1c3b58; border-radius: 14px; background: rgba(8,24,39,.7); }
.feature-number { display: block; margin-bottom: 24px; color: var(--blue-bright); font: 700 .7rem 'Space Grotesk',sans-serif; letter-spacing: .1em; }
.feature-item strong { display: block; font-size: .9rem; }
.feature-item p { margin: 7px 0 0; color: var(--muted-2); font-size: .76rem; line-height: 1.55; }
.spec-card { position: sticky; top: 108px; padding: 28px; }
.spec-card h2 { font-size: 1.45rem; }
.spec-card dl { margin: 22px 0 25px; }
.spec-row { display: grid; grid-template-columns: .8fr 1.2fr; gap: 15px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.spec-row dt { color: var(--muted-2); font-size: .74rem; }
.spec-row dd { margin: 0; color: #dce8f4; font-size: .76rem; font-weight: 700; text-align: right; }
.text-link { color: var(--blue-bright); font-size: .79rem; font-weight: 800; text-decoration: none; }
.text-link span { display: inline-block; transition: transform .15s; }
.text-link:hover span { transform: translateX(4px); }
.related-section { padding: 80px 0 96px; border-top: 1px solid var(--line); background: #07121f; }
.section-heading.compact { align-items: center; margin-bottom: 28px; }
.section-heading.compact h2 { font-size: clamp(1.8rem,2.6vw,2.6rem); }
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 13px; }
.related-card { display: grid; grid-template-columns: 82px minmax(0,1fr) auto; align-items: center; gap: 15px; min-height: 108px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; background: #0b1928; text-decoration: none; transition: transform .15s,border-color .15s; }
.related-card:hover { transform: translateY(-2px); border-color: #315f86; }
.related-card img { width: 82px; height: 82px; border-radius: 10px; object-fit: cover; }
.related-card span,.related-card strong,.related-card small { display: block; }
.related-card span { color: var(--blue-bright); font-size: .64rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.related-card strong { margin-top: 4px; font: 700 .9rem 'Space Grotesk',sans-serif; }
.related-card small { margin-top: 3px; color: var(--muted-2); font-size: .68rem; }
.related-arrow { color: var(--blue-bright); font-size: 1.1rem; }
.product-footer { margin-top: 0; }
.product-footer a { color: var(--muted-2); text-decoration: none; }
@media (max-width: 980px) {
  .product-layout { grid-template-columns: 1fr; gap: 40px; }
  .gallery,.spec-card { position: relative; top: auto; }
  .gallery-main { aspect-ratio: 1.25; }
  .content-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .nav-wrap { gap: 10px; }
  .product-nav { gap: 6px; }
  .product-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: rgba(13,31,49,.82);
    color: #d7e7f6;
    font-size: .7rem;
    white-space: nowrap;
  }
  .product-nav a:nth-child(2) { display: none; }
  .product-nav .support-link {
    margin: 0;
    padding: 0 10px;
    border: 1px solid #28597f;
    color: var(--blue-bright);
    font-size: .7rem;
  }
  .breadcrumbs { padding-block: 17px 12px; }
  .product-hero { padding-bottom: 60px; }
  .gallery-main { aspect-ratio: 1; border-radius: 20px; }
  .buy-panel h1 { font-size: clamp(2.35rem,12vw,3.45rem); }
  .configuration { grid-template-columns: 1fr; }
  .add-button { width: 100%; }
  .demo-feedback,.demo-note { text-align: left; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-item { min-height: 0; }
  .section-heading.compact .text-link { align-self: flex-start; }
  .product-footer { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 480px) {
  .product-page .nav-wrap { min-height: 62px; }
  .product-page .brand { font-size: 1rem; }
  .product-page .brand-mark { width: 22px; height: 22px; grid-template-columns: repeat(2,8px); grid-template-rows: repeat(2,8px); }
  .product-nav a { min-height: 36px; padding-inline: 8px; font-size: .66rem; }
  .product-nav .support-link { padding-inline: 8px; font-size: .66rem; }
  .gallery-thumbs { gap: 7px; }
  .addon-option { grid-template-columns: 20px 42px minmax(0,1fr); gap: 9px; }
  .addon-option:first-of-type { grid-template-columns: 20px minmax(0,1fr); }
  .addon-option img { width: 42px; height: 42px; }
  .option-price { grid-column: 2/-1; text-align: left; }
  .addon-option:first-of-type .option-price { grid-column: 2; }
  .related-card { grid-template-columns: 68px minmax(0,1fr) auto; }
  .related-card img { width: 68px; height: 68px; }
}
@media (max-width: 370px) {
  .product-page .brand > span:last-child { display: none; }
}