:root {
    /* Palette professionnelle et moderne */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #1e293b;
    --accent-color: #10b981;
    --accent-hover: #059669;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    /* Couleurs UI */
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;

    /* Ombres et effets */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Espacements */
    --spacing-unit: 0.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* ========== CONTENEUR PRINCIPAL ========== */
.modern-product-page {
    background-color: var(--bg-light);
    padding: 2rem 0;
    min-height: 100vh;
    max-width: 100%;
    overflow-x: hidden;
}

.modern-product-page .container {
    max-width: 100%;
    overflow-x: hidden;
}

/* ========== SECTION HERO PRODUIT ========== */
.product-hero {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 2rem;
    max-width: 100%;
}

.product-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    max-width: 100%;
    overflow: hidden;
}

/* ========== GALERIE D'IMAGES ========== */
.product-gallery-section {
    padding: 2rem;
    background: var(--bg-light);
    border-right: 1px solid var(--border-color);
    max-width: 100%;
    overflow: hidden;
}

.main-image-container {
    position: relative;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-in;
    transition: box-shadow var(--transition-base);
}

.main-image-container:hover {
    box-shadow: var(--shadow-lg);
}

.main-product-image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.main-image-container:hover .main-product-image {
    transform: scale(1.03);
}

/* Badges sur l'image */
.image-badges {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 10;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    background: var(--bg-white);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.product-badge i {
    font-size: 0.75rem;
}

.zoom-indicator {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.main-image-container:hover .zoom-indicator {
    opacity: 1;
}

/* Miniatures */
.image-thumbnails {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.image-thumbnails::-webkit-scrollbar {
    height: 6px;
}

.image-thumbnails::-webkit-scrollbar-track {
    background: transparent;
}

.image-thumbnails::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.thumbnail-image {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0.6;
}

.thumbnail-image:hover,
.thumbnail-image.active {
    opacity: 1;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========== SECTION INFORMATIONS ========== */
.product-info-section {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.product-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin: 0;
}

.product-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Notation */
.product-rating-modern {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.stars-container {
    display: flex;
    gap: 0.25rem;
}

.star-filled,
.star-half {
    color: #fbbf24;
}

.star-empty {
    color: #e5e7eb;
}

.rating-details {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.rating-score {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.rating-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Prix */
.price-section {
    padding: 1.5rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    border: 1px solid #bae6fd;
}

.main-price {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.main-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    opacity: 0.8;
}

.price-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
}

.price-note i {
    color: var(--accent-color);
}

/* Caractéristiques clés */
.key-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.feature-highlight {
    padding: 1.25rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-highlight:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.feature-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.feature-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ========== ACTIONS PRODUIT ========== */
.product-actions-modern {
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

/* Sélecteur de quantité */
.quantity-section {
    margin-bottom: 1.5rem;
}

.quantity-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.quantity-selector {
    display: inline-flex;
    align-items: center;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.25rem;
}

.qty-btn {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
}

.qty-btn:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.qty-btn:active {
    transform: scale(0.95);
}

.qty-input {
    width: 4rem;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0.5rem;
}

/* Boutons d'action */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.btn-primary-modern {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary-modern:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary-modern {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--bg-white);
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-secondary-modern:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary-modern:active {
    transform: translateY(0);
}

/* Actions de contact */
.contact-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-outline-modern {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1rem;
    background: var(--bg-white);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-outline-modern.btn-single {
    width: 100%;
}

.btn-outline-modern:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #eff6ff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-outline-modern i {
    font-size: 0.875rem;
}

/* ========== INFO LIVRAISON ========== */
.delivery-info-modern {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border-radius: var(--radius-lg);
    border: 1px solid #a7f3d0;
}

.delivery-title {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.delivery-title i {
    color: var(--accent-color);
    font-size: 1.25rem;
}

.delivery-countries {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.country-tag {
    padding: 0.375rem 0.75rem;
    background: var(--bg-white);
    border: 1px solid #a7f3d0;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.delivery-details {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.delivery-details strong {
    color: var(--text-primary);
}

/* ========== ONGLETS ========== */
.modern-tabs-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 2rem;
}

.modern-tab-buttons {
    display: flex;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    scrollbar-width: none;
}

.modern-tab-buttons::-webkit-scrollbar {
    display: none;
}

.modern-tab-btn {
    flex: 1;
    min-width: fit-content;
    padding: 1.25rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.modern-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.5);
}

.modern-tab-btn.active {
    color: var(--primary-color);
    background: var(--bg-white);
    border-bottom-color: var(--primary-color);
}

.modern-tab-btn i {
    margin-right: 0.5rem;
}

.modern-tab-content {
    display: none;
    padding: 2rem;
    animation: fadeIn var(--transition-base);
}

.modern-tab-content.active {
    display: block;
}

.modern-tab-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== SPÉCIFICATIONS ========== */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.spec-item {
    padding: 1.25rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.spec-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.spec-label i {
    color: var(--primary-color);
}

.spec-value {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ========== PRODUITS SIMILAIRES ========== */
.related-products-modern {
    padding: 3rem 0;
}

.section-title-modern {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 2.5rem;
}

.products-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.product-card-modern {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.product-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-light);
    max-width: 100%;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-card-content {
    padding: 1.5rem;
}

.product-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.product-card-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.product-card-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-card-primary {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.btn-card-secondary {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-card-secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ========== MODAL IMAGE ========== */
.image-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
}

.modal-content-image {
    position: relative;
    width: 90%;
    height: 90%;
    margin: 5% auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .product-hero-grid {
        grid-template-columns: 1fr;
    }

    .product-gallery-section {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .product-title {
        font-size: 1.75rem;
    }

    .main-price {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .modern-product-page {
        padding: 1rem 0;
    }

    .product-hero {
        margin-bottom: 1.5rem;
    }

    .product-gallery-section,
    .product-info-section {
        padding: 1.5rem;
    }

    .product-title {
        font-size: 1.5rem;
    }

    .main-price {
        font-size: 1.75rem;
    }

    .key-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .modern-tab-buttons {
        flex-wrap: wrap;
    }

    .modern-tab-btn {
        flex: 1 1 50%;
        min-width: 50%;
    }

    .products-grid-modern {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }

    .section-title-modern {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .product-gallery-section,
    .product-info-section {
        padding: 1rem;
    }

    .product-title {
        font-size: 1.375rem;
    }

    .main-price {
        font-size: 1.5rem;
    }

    .price-currency {
        font-size: 1.125rem;
    }

    .key-features {
        grid-template-columns: 1fr;
    }

    .modern-tab-btn {
        flex: 1 1 100%;
        min-width: 100%;
        text-align: left;
        padding: 1rem;
    }

    .modern-tab-content {
        padding: 1.5rem;
    }

    .products-grid-modern {
        grid-template-columns: 1fr;
    }

    .section-title-modern {
        font-size: 1.5rem;
    }
}

/* ========== ACCESSIBILITÉ ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible pour l'accessibilité */
.btn-primary-modern:focus-visible,
.btn-secondary-modern:focus-visible,
.btn-outline-modern:focus-visible,
.btn-card-primary:focus-visible,
.btn-card-secondary:focus-visible,
.qty-btn:focus-visible,
.modern-tab-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* États disabled */
button:disabled,
.btn-primary-modern:disabled,
.btn-secondary-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Amélioration de la lisibilité */
.modern-tab-content p,
.delivery-details,
.spec-value {
    line-height: 1.7;
}

/* Espacement des icônes dans le texte */
.delivery-title i,
.price-note i,
.feature-icon,
.spec-label i {
    flex-shrink: 0;
}