.product-page { background: var(--paper); }
.product-page .header { color: var(--ink); background: rgba(244,245,238,.94); border-bottom-color: var(--line); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.product-detail-container { min-height: 72vh; padding: 132px 0 110px; }
.product-loading { padding: 120px 20px; color: var(--muted); text-align: center; }
.product-breadcrumb { display: flex; gap: 9px; margin-bottom: 28px; color: var(--muted); font-size: 11px; font-weight: 700; }
.product-breadcrumb a { text-decoration: none; }
.product-layout { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(380px, .74fr); gap: clamp(45px, 7vw, 105px); align-items: start; }
.product-gallery { position: relative; min-width: 0; }
.product-detail-badge { position: absolute; top: 20px; left: 20px; z-index: 4; padding: 8px 13px; color: var(--ink); background: var(--acid); border-radius: 999px; font-size: 10px; font-weight: 800; }
.main-image { position: relative; aspect-ratio: 1; background: #e4ebe8; border-radius: 34px; overflow: hidden; }
.main-image > img { width: 100%; height: 100%; object-fit: cover; }
.image-nav { position: absolute; inset: 50% 18px auto; display: flex; justify-content: space-between; pointer-events: none; transform: translateY(-50%); }
.image-nav button { width: 48px; height: 48px; display: grid; place-items: center; color: var(--ink); background: rgba(255,255,255,.86); border: 0; border-radius: 50%; box-shadow: 0 8px 25px rgba(7,27,36,.12); font-size: 25px; cursor: pointer; pointer-events: auto; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.thumbnail-list { display: grid; grid-template-columns: repeat(6, 1fr); gap: 9px; margin-top: 12px; }
.thumbnail { width: 100%; aspect-ratio: 1; padding: 0; background: #e4ebe8; border: 2px solid transparent; border-radius: 12px; cursor: pointer; overflow: hidden; opacity: .68; transition: opacity .2s, border-color .2s; }
.thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.thumbnail:hover, .thumbnail.active { border-color: var(--primary-color); opacity: 1; }
.product-info-section { position: sticky; top: 112px; }
.product-kicker { margin: 0 0 14px; color: var(--primary-color); font-size: 10px; font-weight: 800; letter-spacing: .17em; }
.product-title { margin: 0; font-size: clamp(35px, 3.7vw, 56px); line-height: 1.12; letter-spacing: -.05em; }
.product-description { margin: 24px 0; color: var(--muted); font-size: 15px; }
.price-group { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; padding: 20px 0; border-block: 1px solid var(--line); }
.price-original { color: #8a989c; font-size: 14px; text-decoration: line-through; }
.price-current { font-size: 29px; font-weight: 800; }
.price-discount { padding: 6px 9px; color: var(--ink); background: var(--acid); border-radius: 999px; font-size: 11px; font-weight: 800; }
.product-features, .product-specs { margin-top: 24px; padding: 24px; background: var(--white); border: 1px solid rgba(7,27,36,.08); border-radius: 20px; }
.product-features h2, .product-specs h2 { margin: 0 0 13px; font-size: 16px; }
.product-features ul { margin: 0; padding: 0; list-style: none; }
.product-features li { position: relative; padding: 7px 0 7px 20px; color: #44595f; font-size: 13px; }
.product-features li::before { content: ''; position: absolute; top: 15px; left: 0; width: 7px; height: 7px; background: var(--water); border-radius: 50%; }
.product-specs table { width: 100%; border-collapse: collapse; font-size: 13px; }
.product-specs tr + tr { border-top: 1px solid var(--line); }
.product-specs th, .product-specs td { padding: 10px 0; text-align: left; vertical-align: top; }
.product-specs th { width: 33%; color: var(--muted); font-weight: 600; }
.product-actions { display: grid; grid-template-columns: 1fr auto; gap: 9px; margin-top: 28px; }
.btn-buy-large, .btn-back { min-height: 58px; display: inline-flex; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; font-size: 13px; font-weight: 800; cursor: pointer; text-decoration: none; }
.btn-buy-large { color: var(--white); background: var(--ink); }
.btn-buy-large:hover { background: var(--primary-dark); }
.btn-back { color: var(--ink); background: transparent; border: 1px solid var(--line); }
.product-video { margin-top: 100px; padding-top: 70px; border-top: 1px solid var(--line); }
.product-video h2 { margin: 0 0 25px; font-size: clamp(34px, 4vw, 55px); letter-spacing: -.04em; }
.video-wrapper { position: relative; aspect-ratio: 16/9; background: var(--ink); border-radius: 30px; overflow: hidden; }
.video-wrapper iframe { width: 100%; height: 100%; border: 0; }
.video-wrapper.vertical-product-video { width: min(560px, 100%); aspect-ratio: 9/16; margin-inline: auto; border-radius: 260px 260px 28px 28px; }
.vertical-product-video video { width: 100%; height: 100%; object-fit: cover; }
.product-contact { padding: 65px 0; color: var(--ink); background: var(--acid); }
.product-contact .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.product-contact p { margin: 0; font-size: clamp(24px, 3vw, 42px); font-weight: 800; letter-spacing: -.04em; }
.product-contact a { display: inline-flex; align-items: center; gap: 20px; padding-bottom: 5px; border-bottom: 1px solid currentColor; font-size: 14px; font-weight: 800; text-decoration: none; }
.product-footer { padding-top: 20px; }
.product-error { padding: 130px 0; text-align: center; }
.product-error p { margin: 0 0 18px; font-size: 26px; font-weight: 800; }
.product-error a { color: var(--primary-color); font-weight: 700; }

@media (max-width: 900px) {
    .product-layout { grid-template-columns: 1fr; }
    .product-info-section { position: static; }
    .thumbnail-list { grid-template-columns: repeat(5, 1fr); }
}

@media (max-width: 560px) {
    .product-detail-container { padding: 105px 0 75px; }
    .main-image { border-radius: 22px; }
    .image-nav { inset-inline: 10px; }
    .image-nav button { width: 42px; height: 42px; }
    .thumbnail-list { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
    .thumbnail { flex: 0 0 70px; scroll-snap-align: start; }
    .product-title { font-size: 34px; }
    .product-features, .product-specs { padding: 19px; }
    .product-actions { grid-template-columns: 1fr; }
    .product-video { margin-top: 70px; padding-top: 50px; }
    .video-wrapper { border-radius: 20px; }
    .product-contact .container { align-items: flex-start; flex-direction: column; }
}