/* ==========================================================================
   ОТДЕЛЬНЫЙ CSS ДЛЯ 4 СТРАНИЦ ТОВАРОВ (product-cylinders-*.html)
   Подключается ВМЕСТЕ с основным style.css (после него)
   ========================================================================== */

/* ==========================================================================
   СТРАНИЦЫ ОТДЕЛЬНЫХ ТОВАРОВ (product-detail.html)
   ========================================================================== */
.breadcrumbs {
    max-width: 1100px;
    margin: 0 auto 24px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #64748b;
}

.breadcrumbs a {
    color: #1e3a8a;
    text-decoration: none;
    font-weight: 600;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.product-detail-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px 80px;
}

.product-detail-hero {
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 24px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 32px;
}

.product-detail-hero__img {
    width: 340px;
    height: 280px;
    object-fit: cover;
    border-radius: 18px;
    flex-shrink: 0;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.product-detail-hero__content {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.product-detail-hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.product-detail-hero__badge {
    align-self: flex-start;
    font-size: 12.5px;
    font-weight: 700;
    color: #1e3a8a;
    background: rgba(37, 99, 235, 0.08);
    padding: 6px 14px;
    border-radius: 20px;
}

.product-detail-hero__badge--price {
    color: #15803d;
    background: rgba(21, 128, 61, 0.09);
}

.product-detail-hero__content h1 {
    font-size: 32px;
    font-weight: 800;
    color: #1e3a8a;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.product-detail-hero__content p {
    font-size: 15px;
    color: #475569;
    line-height: 1.6;
}

.product-detail-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 8px;
}

.product-detail-btn {
    text-decoration: none;
    text-align: center;
    font-size: 14px;
    font-weight: 700;
    padding: 13px 28px;
    border-radius: 12px;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
    cursor: pointer;
}

.product-detail-btn--primary {
    color: #ffffff;
    background-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.product-detail-btn--primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.product-detail-grid {
    display: flex;
    align-items: stretch;
    gap: 24px;
}

.product-detail-grid > div {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.product-detail-grid > div:first-child {
    flex: 1.6;
}

.product-detail-grid > div:last-child {
    flex: 1;
}

.product-detail-card {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.01);
    transition: transform 0.3s;
    margin-bottom: 24px;
}

.product-detail-card:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.7);
}

.product-detail-card h2 {
    font-size: 19px;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 12px;
    display: flex;
    align-items: stretch;
    gap: 12px;
    line-height: 1.35;
}

.product-detail-card h2::before {
    content: "";
    flex-shrink: 0;
    width: 5px;
    align-self: stretch;
    background: #2563eb;
    border-radius: 4px;
}

.product-detail-card p {
    font-size: 14.5px;
    color: #475569;
    line-height: 1.65;
}

.product-detail-card ul {
    list-style: none;
    margin-top: 10px;
}

.product-detail-card ul li {
    font-size: 14.5px;
    color: #475569;
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.product-detail-card ul li::before {
    content: "\2713";
    position: absolute;
    left: 2px;
    color: #2563eb;
    font-weight: 700;
}

.product-specs {
    list-style: none;
}

.product-specs li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
    padding: 12px 0;
    border-bottom: 1px dashed rgba(30, 41, 59, 0.1);
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs li span:first-child {
    color: #64748b;
}

.product-specs li span:last-child {
    color: #1e293b;
    font-weight: 700;
    text-align: right;
}

.product-detail-cta {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
    border-radius: 20px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
    margin-top: auto;
}

.product-detail-cta h3 {
    color: #ffffff;
    font-size: 18px;
    font-weight: 700;
}

.product-detail-cta p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 13.5px;
    line-height: 1.5;
}

.product-detail-cta .product-detail-btn--primary {
    background-color: #ffffff;
    color: #1e3a8a;
    box-shadow: none;
}

.product-detail-cta .product-detail-btn--primary:hover {
    background-color: #f1f5f9;
}

.other-products {
    margin-top: 16px;
}

.other-products__title {
    font-size: 22px;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 20px;
    text-align: center;
}

.other-products__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.other-product-card {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 18px;
    padding: 16px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.other-product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}

.other-product-card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 12px;
}

.other-product-card span {
    font-size: 14px;
    font-weight: 700;
    color: #1e3a8a;
    text-align: center;
}

@media (max-width: 900px) {
    .product-detail-hero {
        flex-direction: column;
        text-align: center;
        padding: 28px;
    }
    .product-detail-hero__img {
        width: 100%;
        max-width: 340px;
        height: 220px;
    }
    .product-detail-hero__actions {
        justify-content: center;
    }
    .product-detail-grid {
        flex-direction: column;
    }
    .product-detail-grid > div:first-child,
    .product-detail-grid > div:last-child {
        flex: none;
    }
    .product-detail-cta {
        margin-top: 0;
    }
    .other-products__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .product-detail-hero__content h1 {
        font-size: 24px;
    }
    .other-products__grid {
        grid-template-columns: 1fr;
    }
    .breadcrumbs {
        font-size: 12px;
    }
}