* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4a9d5b;
    --primary-dark: #3d8a4d;
    --secondary: #5bae6b;
    --accent: #8cc63f;
    --navy: #1a1f2e;
    --dark: #2c2f3a;
    --gray-100: #f4f5f8;
    --gray-200: #e4e6ec;
    --gray-300: #d1d4dc;
    --gray-500: #7a7f8e;
    --gray-700: #3e4250;
    --white: #ffffff;
    --lavender: #eceef5;
    --lavender-light: #f5f6fb;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(30,35,50,0.06);
    --shadow-lg: 0 8px 40px rgba(30,35,50,0.10);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Top Banner */
.top-banner {
    background: linear-gradient(90deg, var(--navy), #252a3a);
    color: rgba(255,255,255,0.85);
    text-align: center;
    padding: 10px 16px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow 0.3s;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-grey {
    color: var(--dark);
}

.logo-research {
    color: var(--primary);
    margin-left: 4px;
}

.logo-icon {
    width: 28px;
    height: 28px;
    margin-right: 8px;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav a:hover {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 8px 36px 8px 14px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 13px;
    width: 220px;
    outline: none;
    font-family: inherit;
    transition: border-color 0.2s, width 0.3s;
}

.search-box input:focus {
    border-color: var(--primary);
    width: 280px;
}

.search-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    pointer-events: none;
}

.cart-btn {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-700);
    padding: 8px;
    transition: color 0.2s;
}

.cart-btn:hover {
    color: var(--primary);
}

.cart-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary);
    color: var(--white);
    font-size: 10px;
    font-weight: 600;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: 0.3s;
}

/* Hero */
.hero {
    position: relative;
    height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #d9dce8 0%, #c8cce0 30%, #e0e2ed 60%, #eceef5 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(74,157,91,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(140,198,63,0.06) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--dark);
    max-width: 700px;
    padding: 0 24px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    line-height: 1.15;
    color: var(--dark);
}

.hero-content p {
    font-size: 17px;
    color: var(--gray-500);
    margin-bottom: 32px;
    line-height: 1.7;
}

.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

/* Features Bar */
.features-bar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 24px 0;
}

.features-bar .container {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-700);
}

.feature svg {
    color: var(--primary);
    flex-shrink: 0;
}

.feature strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
}

.feature span {
    font-size: 12px;
    color: var(--gray-500);
}

/* Products */
.products {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.section-header p {
    font-size: 16px;
    color: var(--gray-500);
}

.product-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 8px 24px;
    border: 1px solid var(--gray-300);
    background: var(--white);
    border-radius: 24px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    color: var(--gray-700);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.product-badge.new {
    background: var(--accent);
}

.product-badge.hot {
    background: #d35400;
}

.product-image {
    background: linear-gradient(160deg, #dfe1ec 0%, #eceef5 50%, #e8eaf3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 220px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 20px;
}

.product-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: 6px;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.product-desc {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-effects {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.effect-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--lavender);
    color: var(--gray-500);
}

.effect-tag.simple {
    background: #e9f5ec;
    color: var(--primary);
    border: 1px solid rgba(74, 157, 91, 0.15);
}

.product-meta {
    margin-bottom: 16px;
}

.purity {
    font-size: 12px;
    font-weight: 500;
    color: var(--primary);
    background: #e9f5ec;
    padding: 4px 10px;
    border-radius: 4px;
}

.product-pricing {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.variant-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    color: var(--dark);
    outline: none;
    cursor: pointer;
    background: var(--white);
}

.variant-select:focus {
    border-color: var(--primary);
}

.add-to-cart-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.add-to-cart-btn:hover {
    background: var(--primary-dark);
}

/* Library */
.library {
    padding: 80px 0;
    background: var(--lavender-light);
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.library-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--gray-200);
    transition: transform 0.3s, box-shadow 0.3s;
}

.library-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.library-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #e4f5e8, #ecfaef);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 20px;
}

.library-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.library-card p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 16px;
    line-height: 1.6;
}

.library-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    transition: color 0.2s;
}

.library-link:hover {
    color: var(--primary-dark);
}

/* About */
.about {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
}

.about-content p {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 16px;
    line-height: 1.7;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 32px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 13px;
    color: var(--gray-500);
}

.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.dna-helix {
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Contact */
.contact {
    padding: 80px 0;
    background: var(--lavender-light);
}

.contact-form {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: flex;
    gap: 16px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    background: var(--white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
}

.contact-form .btn-primary {
    align-self: flex-start;
}

/* Form Success */
.form-success {
    text-align: center;
    padding: 40px 20px;
}
.form-success h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    margin: 16px 0 8px;
}
.form-success p {
    font-size: 15px;
    color: var(--gray-500);
}

/* Footer */
.footer {
    background: var(--navy);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.footer-logo .logo-grey {
    color: rgba(255,255,255,0.85);
}

.footer-logo .logo-research {
    color: var(--accent);
}

.footer-col p {
    font-size: 14px;
    line-height: 1.7;
}

.footer-col h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col a {
    font-size: 14px;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-trust {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 13px;
}

.trust-item svg {
    color: var(--accent);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* Article Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius);
    max-width: 720px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: var(--gray-500);
    z-index: 1;
    line-height: 1;
}

.modal-content {
    padding: 48px 40px 40px;
}

.modal-content h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.modal-content .modal-subtitle {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 24px;
}

.modal-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--dark);
}

.modal-content p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.75;
    margin-bottom: 12px;
}

.modal-content ul {
    margin: 12px 0 16px 20px;
    color: var(--gray-700);
    font-size: 15px;
    line-height: 1.75;
}

.modal-content .research-note {
    background: var(--lavender-light);
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 20px 0;
    font-size: 13px;
    color: var(--gray-500);
}

.modal-content .qr-placeholder {
    background: var(--gray-100);
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    color: var(--gray-500);
    font-size: 13px;
    margin-top: 20px;
}

/* BAC Water product image */
.bac-water-img {
    background: linear-gradient(160deg, #e8f5e9 0%, #f1f8e9 50%, #e8f5e9 100%) !important;
}

/* Library grid */
@media (min-width: 1025px) {
    .library-grid {
        grid-template-columns: repeat(5, 1fr) !important;
    }
}

/* Cart Sidebar */
.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.cart-overlay.open {
    opacity: 1;
    visibility: visible;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -380px;
    width: 380px;
    height: 100vh;
    background: var(--white);
    z-index: 2001;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
    box-shadow: -4px 0 30px rgba(0,0,0,0.15);
}

.cart-sidebar.open {
    right: 0;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
}

.cart-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.cart-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--gray-500);
    padding: 4px;
    line-height: 1;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.cart-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--gray-500);
    gap: 16px;
}

.cart-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
}

.cart-item-info {
    flex: 1;
}

.cart-item-info h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.cart-item-info p {
    font-size: 12px;
    color: var(--gray-500);
}

.cart-item-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-top: 4px;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    font-size: 18px;
    padding: 0;
    align-self: flex-start;
}

.cart-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-200);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.checkout-btn {
    width: 100%;
    padding: 14px;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .library-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .features-bar .container {
        flex-wrap: wrap;
        justify-content: center;
    }
    .feature {
        flex: 0 0 45%;
    }
    .footer-trust {
        flex-wrap: wrap;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .search-box {
        display: none;
    }
    .hero-content h1 {
        font-size: 32px;
    }
    .hero {
        height: 420px;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .library-grid {
        grid-template-columns: 1fr !important;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-visual {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .form-row {
        flex-direction: column;
    }
    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
    .about-stats {
        gap: 24px;
    }
    .feature {
        flex: 0 0 100%;
    }
}

/* Age Gate */
.age-gate-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 12, 20, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.age-gate-overlay.hidden {
    display: none;
}

.age-gate-modal {
    background: var(--white);
    border-radius: var(--radius);
    padding: 48px 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.age-gate-logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.age-gate-icon {
    color: var(--primary);
    margin-bottom: 16px;
}

.age-gate-modal h2 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--dark);
}

.age-gate-modal p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 8px;
    line-height: 1.6;
}

.age-gate-question {
    font-size: 16px !important;
    font-weight: 600;
    color: var(--dark) !important;
    margin-top: 16px !important;
    margin-bottom: 20px !important;
}

.age-gate-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.age-gate-btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.age-gate-yes {
    background: var(--primary);
    color: var(--white);
}

.age-gate-yes:hover {
    background: var(--primary-dark);
}

.age-gate-no {
    background: var(--gray-200);
    color: var(--gray-700);
}

.age-gate-no:hover {
    background: var(--gray-300);
}

.age-gate-disclaimer {
    font-size: 12px !important;
    color: var(--gray-500) !important;
}

.age-gate-disclaimer a {
    color: var(--primary);
    text-decoration: underline;
}

/* TOS Page */
.tos-section {
    padding: 80px 0 60px;
    min-height: 60vh;
}

.tos-section h1 {
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--dark);
}

.tos-section .tos-updated {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 40px;
}

.tos-section h2 {
    font-size: 20px;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--dark);
}

.tos-section p,
.tos-section li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.tos-section ul,
.tos-section ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.tos-section li {
    margin-bottom: 6px;
}


/* Out of Stock Products */
.product-card.out-of-stock {
    position: relative;
    opacity: 0.55;
    pointer-events: none;
}

.product-card.out-of-stock .product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 35, 50, 0.25);
    border-radius: var(--radius) var(--radius) 0 0;
    z-index: 2;
}

.product-card.out-of-stock .product-image {
    position: relative;
}

.out-of-stock-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: #e74c3c;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    z-index: 3;
}

.product-card.out-of-stock .add-to-cart-btn {
    background: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
    pointer-events: none;
}

.product-card.out-of-stock .variant-select {
    opacity: 0.5;
    pointer-events: none;
}