/* ===================================
   GALERIE PHOTOS - Style Professionnel
   =================================== */

.back-link {
    display: inline-block;
    padding: 12px 24px;
    margin-bottom: 20px;
    font-size: 1rem;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.4);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-olive);
    transform: translateX(-4px);
    box-shadow: var(--shadow-glow-olive);
}

/* Galerie masonnerie - Optimisée */
.photos-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md, 24px);
    padding: var(--spacing-lg, 48px) var(--spacing-md, 24px) var(--spacing-2xl, 96px);
    max-width: 1400px;
    margin: 0 auto;
    will-change: contents;
}

.photos-gallery img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg, 16px);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    opacity: 1;
    contain: layout style paint;
    background: linear-gradient(135deg, rgba(216, 199, 165, 0.08), rgba(126, 138, 80, 0.08));
}

/* Loading state - placeholder background */
.photos-gallery img[src*="?w=400"] {
    filter: blur(0);
    transition: filter 0.3s ease;
}

.photos-gallery img:hover {
    transform: scale(1.05) translateY(-8px);
    box-shadow: 0 16px 48px rgba(139, 115, 85, 0.35);
    border-color: var(--accent-terre);
    opacity: 1;
}

.photos-gallery img:active {
    transform: scale(0.98);
}

/* ===================================
   LIGHTBOX - Modal Photo Optimisée
   =================================== */

.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease;
    overflow: hidden;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.lightbox-content {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg, 16px);
    animation: slideIn 0.3s ease;
    will-change: transform;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.close {
    position: absolute;
    top: 30px;
    right: 40px;
    font-size: 40px;
    font-weight: bold;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 1001;
    transition: all 0.3s ease;
    background: rgba(0, 0, 0, 0.5);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    line-height: 1;
}

.close:hover {
    color: var(--accent-moss);
    background: rgba(0, 0, 0, 0.7);
    border-color: var(--accent-olive);
    transform: rotate(90deg);
}

/* Navigation Lightbox */
.lightbox-nav {
    display: flex;
    gap: 20px;
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: all;
}

.lightbox-btn {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
    font-size: 24px;
    font-weight: bold;
    padding: 12px 20px;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    -webkit-user-select: none;
    user-select: none;
}

.lightbox-btn:hover {
    background: rgba(0, 0, 0, 0.6);
    border-color: var(--accent-olive);
    box-shadow: var(--shadow-glow-olive);
    transform: scale(1.1);
}

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

/* ===================================
   RESPONSIVE - Galerie Photos
   =================================== */

@media (max-width: 1024px) {
    .photos-gallery {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--spacing-sm, 16px);
        padding: var(--spacing-md, 24px);
    }
}

@media (max-width: 768px) {
    .photos-gallery {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--spacing-sm, 16px);
    }

    .photos-gallery img {
        height: 220px;
    }

    .close {
        top: 20px;
        right: 20px;
        font-size: 32px;
        width: 45px;
        height: 45px;
    }

    .lightbox-nav {
        bottom: 20px;
        gap: 10px;
    }

    .lightbox-btn {
        padding: 10px 16px;
        font-size: 18px;
    }

    .lightbox-content {
        max-width: 95%;
        max-height: 80vh;
    }
}

@media (max-width: 480px) {
    .photos-gallery {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-xs, 12px);
        padding: var(--spacing-sm, 16px);
    }

    .photos-gallery img {
        height: 160px;
    }

    .close {
        top: 15px;
        right: 15px;
        font-size: 28px;
        width: 40px;
        height: 40px;
    }

    .lightbox-btn {
        padding: 8px 12px;
        font-size: 16px;
    }

    .back-link {
        font-size: 0.9rem;
        padding: 10px 16px;
    }

    .lightbox-content {
        max-width: 98%;
        max-height: 75vh;
    }
}

/* Optimisation CPU rendering et compat Safari */
@supports (backdrop-filter: blur(16px)) {
    .back-link, .lightbox-btn {
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
    }
}

@supports not (backdrop-filter: blur(16px)) {
    .back-link, .lightbox-btn {
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        background: rgba(0, 0, 0, 0.5);
    }
}