body {
    background-color: #ffffff;
    margin: 0;
    padding: 0;
}

.home-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* ===== MASONRY AVEC COLUMNS ===== */
.photo-grid {
    column-count: 3;
    column-gap: 20px;
}

/* ===== ITEM ===== */
.photo-item {
    break-inside: avoid;
    margin-bottom: 20px;
    overflow: hidden;
    border-radius: 4px;
    background: #f5f5f5;

    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.photo-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== MEDIA ===== */
.photo-item img,
.photo-item video {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.photo-item:hover img,
.photo-item:hover video {
    transform: scale(1.05);
}

.admin-back-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #111;
    color: #fff;
    padding: 12px 18px;
    border-radius: 8px;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    font-weight: 600;
    z-index: 999;
}

.admin-back-btn:hover {
    background: #222;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .photo-grid {
        column-count: 2;
        column-gap: 15px;
    }
}

@media (max-width: 768px) {
    .photo-grid {
        column-count: 1;
    }
}