/* General */
body {
    background-color: #f8f9fa;
}

.drop-zone {
    border: 2px dashed #ccc;
    background-color: #fefefe;
    transition: background-color 0.3s;
    cursor: pointer;
}
.drop-zone.dragover {
    background-color: #e9f0ff;
    border-color: #0d6efd;
}

/* Image cards */
.image-card {
    position: relative;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s;
    cursor: grab;
}
.image-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}
.image-card .card-img-top {
    width: 100%;
    height: 150px;
    object-fit: cover;
    background: #f0f0f0;
}
.image-card .card-body {
    padding: 0.5rem;
}
.image-card .card-title {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.image-card .card-text {
    font-size: 0.75rem;
    color: #6c757d;
}
.image-card .btn-group-sm .btn {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
}

/* Preview canvas container */
.preview-container {
    position: relative;
    min-height: 200px;
    background: #f0f0f0;
    border-radius: 0.25rem;
    overflow: auto;
}
#previewCanvas {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
    image-rendering: auto;
}

/* Zoom buttons */
.zoom-btn.active {
    background-color: #0d6efd;
    color: white;
    border-color: #0d6efd;
}

/* Responsive */
@media (max-width: 768px) {
    .image-card .card-img-top {
        height: 100px;
    }
    .btn-group .btn {
        font-size: 0.8rem;
    }
}