/* ============================================================================
   Single Product v2 — Material OEM/ODM product detail page
   ----------------------------------------------------------------------------
   Replaces WC default single-product layout for ALL products.
   Loaded only on is_product() pages.
   ============================================================================ */

:root {
    --primary: #c42f2f;
    --primary-dark: #a02020;
    --primary-light: #e85a5a;
    --dark: #0a0a0a;
    --dark-2: #1a1a1a;
    --dark-3: #222;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e8e8e8;
    --gray-300: #d4d4d3;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-700: #404040;
    --gray-900: #171717;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #c42f2f 0%, #e85a5a 100%);
    --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, .10);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, .18);
    --radius: 12px;
    --radius-lg: 20px;
    --max-width: 1200px;
    --nav-height: 72px;
}

.single-product-v2 {
    font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    background: var(--white);
}
.single-product-v2 *,
.single-product-v2 *::before,
.single-product-v2 *::after { box-sizing: border-box; margin: 0; padding: 0; }
.single-product-v2 img { max-width: 100%; height: auto; display: block; }
.single-product-v2 a { color: inherit; text-decoration: none; }
.single-product-v2 button { font: inherit; cursor: pointer; background: none; border: 0; padding: 0; color: inherit; }
.single-product-v2 .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== BREADCRUMB ===== */
.single-product-v2 .spv2-breadcrumb {
    padding: 24px 0 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}
.single-product-v2 .spv2-crumb {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    font-size: 13px; color: var(--gray-500);
}
.single-product-v2 .spv2-crumb a { color: var(--gray-500); transition: color .2s; }
.single-product-v2 .spv2-crumb a:hover { color: var(--primary); }
.single-product-v2 .spv2-crumb .spv2-sep { color: var(--gray-300); }
.single-product-v2 .spv2-crumb .spv2-current { color: var(--gray-900); font-weight: 500; }

/* ===== PRODUCT HERO ===== */
.single-product-v2 .spv2-hero { padding: 48px 0 64px; background: var(--white); }
.single-product-v2 .spv2-hero-grid {
    display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: flex-start;
}

/* Gallery */
.single-product-v2 .spv2-gallery { display: flex; flex-direction: column; gap: 16px; }
.single-product-v2 .spv2-gallery-main {
    position: relative; aspect-ratio: 1/1;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #f5f5f5 0%, #ebebeb 100%);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.single-product-v2 .spv2-gallery-main img {
    width: 100%; height: 100%; object-fit: cover;
}
.single-product-v2 .spv2-gallery-main .spv2-no-img {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    color: var(--gray-400); font-size: 14px; font-weight: 600;
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
}
.single-product-v2 .spv2-gallery-thumbs {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
}
.single-product-v2 .spv2-thumb {
    aspect-ratio: 1/1; border-radius: 8px;
    background: var(--gray-100);
    cursor: pointer; border: 2px solid transparent;
    transition: all .2s; overflow: hidden; padding: 0;
}
.single-product-v2 .spv2-thumb img { width: 100%; height: 100%; object-fit: cover; }
.single-product-v2 .spv2-thumb.active { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.single-product-v2 .spv2-thumb:hover:not(.active) { border-color: var(--gray-300); }

/* Info */
.single-product-v2 .spv2-info { display: flex; flex-direction: column; gap: 24px; }
.single-product-v2 .spv2-tag-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.single-product-v2 .spv2-tag {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 12px; border-radius: 50px;
    font-size: 12px; font-weight: 600; letter-spacing: .5px;
}
.single-product-v2 .spv2-tag.material {
    background: rgba(196, 47, 47, .1); color: var(--primary);
    border: 1px solid rgba(196, 47, 47, .2);
}

.single-product-v2 .spv2-title {
    font-size: 40px; font-weight: 800; letter-spacing: -.5px;
    color: var(--gray-900); line-height: 1.15;
}
.single-product-v2 .spv2-title .spv2-sku {
    display: inline-block; margin-left: 8px;
    font-size: 14px; font-weight: 500;
    color: var(--gray-500);
    font-family: 'SF Mono', Consolas, monospace;
    letter-spacing: 1px;
}
.single-product-v2 .spv2-mfr {
    font-size: 14px; color: var(--gray-500);
}
.single-product-v2 .spv2-mfr strong { color: var(--gray-700); font-weight: 600; }

.single-product-v2 .spv2-desc {
    font-size: 15px; color: var(--gray-700); line-height: 1.75;
    padding: 20px; border-radius: var(--radius);
    background: var(--gray-50); border-left: 3px solid var(--primary);
}

/* Specs grid */
.single-product-v2 .spv2-specs {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 0;
    border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden;
}
.single-product-v2 .spv2-spec {
    padding: 14px 18px;
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    border-right: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200);
    font-size: 13px;
}
.single-product-v2 .spv2-spec:nth-child(2n) { border-right: 0; }
.single-product-v2 .spv2-spec:nth-last-child(-n+2) { border-bottom: 0; }
.single-product-v2 .spv2-spec-label {
    color: var(--gray-500); font-weight: 500;
    display: flex; align-items: center; gap: 6px;
}
.single-product-v2 .spv2-spec-label svg { width: 14px; height: 14px; stroke: var(--gray-400); }
.single-product-v2 .spv2-spec-value { color: var(--gray-900); font-weight: 600; text-align: right; }

/* Badges */
.single-product-v2 .spv2-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.single-product-v2 .spv2-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; border-radius: 50px;
    background: var(--gray-50); border: 1px solid var(--gray-200);
    font-size: 12px; font-weight: 600; color: var(--gray-700);
}
.single-product-v2 .spv2-badge svg { width: 14px; height: 14px; stroke: var(--primary); }
.single-product-v2 .spv2-badge.check {
    background: rgba(196, 47, 47, .05); border-color: rgba(196, 47, 47, .15); color: var(--primary-dark);
}

/* CTAs */
.single-product-v2 .spv2-cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.single-product-v2 .spv2-btn-primary {
    display: inline-flex; align-items: center; gap: 8px; justify-content: center;
    padding: 16px 32px;
    background: var(--gradient-primary); color: #fff;
    border-radius: 50px; font-weight: 600; font-size: 15px;
    border: none; cursor: pointer; transition: all .3s;
    flex: 1; min-width: 180px;
}
.single-product-v2 .spv2-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 35px rgba(196, 47, 47, .4); }
.single-product-v2 .spv2-btn-ghost {
    display: inline-flex; align-items: center; gap: 8px; justify-content: center;
    padding: 16px 28px;
    background: transparent; color: var(--gray-900);
    border-radius: 50px; font-weight: 600; font-size: 15px;
    border: 1.5px solid var(--gray-300); cursor: pointer; transition: all .2s;
    flex: 1; min-width: 160px;
}
.single-product-v2 .spv2-btn-ghost:hover { border-color: var(--gray-900); background: var(--gray-50); }
.single-product-v2 .spv2-btn-primary svg,
.single-product-v2 .spv2-btn-ghost svg { width: 16px; height: 16px; }

/* Contact strip */
.single-product-v2 .spv2-contact {
    display: flex; align-items: center; gap: 14px;
    padding: 16px; border-radius: var(--radius);
    background: var(--gray-900); color: #fff;
}
.single-product-v2 .spv2-contact-icon {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--gradient-primary);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.single-product-v2 .spv2-contact-icon svg { width: 18px; height: 18px; stroke: #fff; }
.single-product-v2 .spv2-contact-text { font-size: 13px; line-height: 1.4; }
.single-product-v2 .spv2-contact-text strong {
    display: block; color: #fff; font-size: 14px; margin-bottom: 2px;
}
.single-product-v2 .spv2-contact-text span { color: var(--gray-400); }

/* ===== TABS SECTION ===== */
.single-product-v2 .spv2-detail { padding: 0 0 80px; background: var(--white); }
.single-product-v2 .spv2-tabs-bar {
    display: flex; gap: 0;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 40px; overflow-x: auto; scrollbar-width: none;
}
.single-product-v2 .spv2-tabs-bar::-webkit-scrollbar { display: none; }
.single-product-v2 .spv2-tab {
    padding: 18px 28px; font-size: 14px; font-weight: 600; color: var(--gray-500);
    border-bottom: 2px solid transparent; cursor: pointer; transition: all .2s;
    white-space: nowrap;
}
.single-product-v2 .spv2-tab:hover { color: var(--gray-900); }
.single-product-v2 .spv2-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.single-product-v2 .spv2-tab-panel { display: none; animation: spv2FadeIn .3s ease; }
.single-product-v2 .spv2-tab-panel.active { display: block; }
@keyframes spv2FadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Description panel */
.single-product-v2 .spv2-desc-grid {
    display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px;
}
.single-product-v2 .spv2-prose p {
    font-size: 15px; color: var(--gray-700); line-height: 1.85; margin-bottom: 16px;
}
.single-product-v2 .spv2-prose p strong { color: var(--gray-900); }
.single-product-v2 .spv2-prose ul { margin: 0 0 16px 20px; padding: 0; }
.single-product-v2 .spv2-prose li { font-size: 15px; color: var(--gray-700); line-height: 1.85; margin-bottom: 6px; }

.single-product-v2 .spv2-side { display: flex; flex-direction: column; gap: 16px; }
.single-product-v2 .spv2-side-card {
    padding: 20px; border-radius: var(--radius);
    background: var(--gray-50); border: 1px solid var(--gray-200);
}
.single-product-v2 .spv2-side-card h4 {
    font-size: 13px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px;
    display: flex; align-items: center; gap: 8px;
}
.single-product-v2 .spv2-side-card h4 svg { width: 16px; height: 16px; stroke: var(--primary); }
.single-product-v2 .spv2-side-card p,
.single-product-v2 .spv2-side-card ul { font-size: 13px; color: var(--gray-600); line-height: 1.7; }
.single-product-v2 .spv2-side-card ul { list-style: none; padding: 0; }
.single-product-v2 .spv2-side-card li {
    padding: 4px 0; display: flex; align-items: flex-start; gap: 8px;
}
.single-product-v2 .spv2-side-card li::before {
    content: ''; width: 5px; height: 5px; border-radius: 50%;
    background: var(--primary); flex-shrink: 0; margin-top: 8px;
}

/* Specs table */
.single-product-v2 .spv2-specs-table {
    border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden;
}
.single-product-v2 .spv2-specs-table .spv2-row {
    display: grid; grid-template-columns: 240px 1fr;
    padding: 14px 20px; font-size: 14px;
    border-bottom: 1px solid var(--gray-200);
}
.single-product-v2 .spv2-specs-table .spv2-row:last-child { border-bottom: 0; }
.single-product-v2 .spv2-specs-table .spv2-row:nth-child(even) { background: var(--gray-50); }
.single-product-v2 .spv2-specs-table .spv2-row .k { color: var(--gray-500); font-weight: 500; }
.single-product-v2 .spv2-specs-table .spv2-row .v { color: var(--gray-900); font-weight: 600; }

/* Customization grid */
.single-product-v2 .spv2-custom-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.single-product-v2 .spv2-custom-card {
    padding: 24px; border-radius: var(--radius);
    border: 1px solid var(--gray-200); background: #fff;
    transition: all .3s;
}
.single-product-v2 .spv2-custom-card:hover {
    border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px);
}
.single-product-v2 .spv2-custom-card .spv2-cc-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: rgba(196, 47, 47, .1); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 14px;
}
.single-product-v2 .spv2-custom-card .spv2-cc-icon svg { width: 24px; height: 24px; }
.single-product-v2 .spv2-custom-card h4 { font-size: 15px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
.single-product-v2 .spv2-custom-card p { font-size: 13px; color: var(--gray-600); line-height: 1.65; }
.single-product-v2 .spv2-custom-card .spv2-cc-meta {
    margin-top: 14px; padding-top: 14px;
    border-top: 1px dashed var(--gray-200);
    font-size: 12px; color: var(--gray-500);
}
.single-product-v2 .spv2-custom-card .spv2-cc-meta strong { color: var(--gray-900); }

/* Shipping */
.single-product-v2 .spv2-ship-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.single-product-v2 .spv2-ship-block h4 {
    font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
}
.single-product-v2 .spv2-ship-block h4 svg { width: 16px; height: 16px; stroke: var(--primary); }
.single-product-v2 .spv2-ship-block ul { list-style: none; padding: 0; }
.single-product-v2 .spv2-ship-block li {
    padding: 10px 0; font-size: 14px; color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
    display: flex; justify-content: space-between; align-items: center;
}
.single-product-v2 .spv2-ship-block li:last-child { border-bottom: 0; }
.single-product-v2 .spv2-ship-block li .spv2-label { color: var(--gray-500); font-size: 13px; }
.single-product-v2 .spv2-ship-block li .spv2-value { font-weight: 600; color: var(--gray-900); }

/* ===== RELATED ===== */
.single-product-v2 .spv2-related {
    padding: 80px 0;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}
.single-product-v2 .spv2-related-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    margin-bottom: 32px; gap: 16px; flex-wrap: wrap;
}
.single-product-v2 .spv2-related-head h2 {
    font-size: 28px; font-weight: 800; color: var(--gray-900); letter-spacing: -.3px;
}
.single-product-v2 .spv2-related-head h2 .accent { color: var(--primary); }
.single-product-v2 .spv2-related-head p { color: var(--gray-500); font-size: 14px; margin-top: 4px; }
.single-product-v2 .spv2-related-head a {
    font-size: 13px; font-weight: 600; color: var(--primary);
    display: inline-flex; align-items: center; gap: 6px;
}
.single-product-v2 .spv2-related-head a:hover { color: var(--primary-dark); }

.single-product-v2 .spv2-related-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.single-product-v2 .spv2-r-card {
    background: #fff; border-radius: var(--radius);
    overflow: hidden; border: 1px solid var(--gray-200);
    transition: all .3s;
}
.single-product-v2 .spv2-r-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent;
}
.single-product-v2 .spv2-r-card-media {
    aspect-ratio: 1/1; position: relative;
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.single-product-v2 .spv2-r-card-media img { width: 100%; height: 100%; object-fit: cover; }
.single-product-v2 .spv2-r-card-media .spv2-r-code {
    color: var(--gray-400); font-size: 13px; font-weight: 700; letter-spacing: 2px;
    font-family: 'SF Mono', Consolas, monospace;
}
.single-product-v2 .spv2-r-card-body { padding: 14px 16px; }
.single-product-v2 .spv2-r-card-title { font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 2px; }
.single-product-v2 .spv2-r-card-sub { font-size: 12px; color: var(--gray-500); }

/* ===== OEM CTA BAND ===== */
.single-product-v2 .spv2-cta-band {
    padding: 80px 0;
    background: var(--gradient-dark);
    color: #fff; position: relative; overflow: hidden;
}
.single-product-v2 .spv2-cta-band::before {
    content: ''; position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 80% 50%, rgba(196, 47, 47, .18) 0%, transparent 60%),
        radial-gradient(ellipse 50% 50% at 20% 0%, rgba(196, 47, 47, .08) 0%, transparent 60%);
    pointer-events: none;
}
.single-product-v2 .spv2-cta-inner {
    position: relative;
    display: flex; align-items: center; justify-content: space-between;
    gap: 48px; flex-wrap: wrap;
}
.single-product-v2 .spv2-cta-text .spv2-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 50px;
    background: rgba(196, 47, 47, .15); border: 1px solid rgba(196, 47, 47, .3);
    color: var(--primary-light); font-size: 12px; font-weight: 600;
    margin-bottom: 14px;
}
.single-product-v2 .spv2-cta-text h2 {
    font-size: 36px; font-weight: 800; line-height: 1.2; letter-spacing: -.5px; margin-bottom: 12px;
}
.single-product-v2 .spv2-cta-text h2 em {
    font-style: normal;
    background: var(--gradient-primary);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.single-product-v2 .spv2-cta-text p {
    color: var(--gray-400); font-size: 15px; max-width: 520px; line-height: 1.7;
}
.single-product-v2 .spv2-cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.single-product-v2 .spv2-cta-actions .spv2-btn-primary { padding: 18px 36px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
    .single-product-v2 .spv2-hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .single-product-v2 .spv2-desc-grid { grid-template-columns: 1fr; gap: 24px; }
    .single-product-v2 .spv2-custom-grid { grid-template-columns: 1fr 1fr; }
    .single-product-v2 .spv2-ship-grid { grid-template-columns: 1fr; }
    .single-product-v2 .spv2-related-grid { grid-template-columns: 1fr 1fr; }
    .single-product-v2 .spv2-title { font-size: 32px; }
}
@media (max-width: 640px) {
    .single-product-v2 .spv2-specs { grid-template-columns: 1fr; }
    .single-product-v2 .spv2-spec { border-right: 0 !important; }
    .single-product-v2 .spv2-custom-grid { grid-template-columns: 1fr; }
    .single-product-v2 .spv2-related-grid { grid-template-columns: 1fr 1fr; }
    .single-product-v2 .spv2-cta-inner { flex-direction: column; align-items: flex-start; }
}