body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

main {
    flex: 1;
}

.card {
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.photo-grid img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.photo-grid img:hover {
    transform: scale(1.05);
}

.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: #0d6efd;
    background-color: #f0f7ff;
}

.status-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
}

.qr-url-card {
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f0fe 100%);
    border-left: 4px solid #0d6efd;
}

.history-timeline {
    position: relative;
    padding-left: 1.5rem;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #dee2e6;
}

.history-item {
    position: relative;
    padding-bottom: 1rem;
}

.history-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #0d6efd;
    border: 2px solid #fff;
}

/* Lightbox for full-size photo viewing */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-overlay img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}