.img-dropzone {
    border: 2px dashed #cbd5e1;
    background: #f8fafc;
    border-radius: 14px;
    cursor: pointer;
    transition: border-color .2s, background .2s, transform .2s;
    user-select: none;
}
.img-dropzone:hover,
.img-dropzone.dragover { border-color: #0d6efd; background: #eef6ff; }
.img-dropzone.dragover { transform: scale(1.005); }
.img-dropzone .dz-icon { font-size: 44px; line-height: 1; }

.workspace { display: block; }
.workspace.active { display: block; }

.thumb-box {
    width: 76px; height: 76px; flex: 0 0 76px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    background-color: #f8f9fa;
    background-image:
        linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
        linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
    background-size: 12px 12px;
    background-position: 0 0, 0 6px, 6px -6px, -6px 0;
}
.min-w-0 { min-width: 0; }
.file-name {
    max-width: 100%; overflow: hidden;
    text-overflow: ellipsis; white-space: nowrap;
}
.stat-num { font-variant-numeric: tabular-nums; }
.card-item.is-working { opacity: .7; }

.mode-group .btn { flex: 1; }
.mode-group .btn-check:checked + .btn { font-weight: 600; }

.scale-btn-group { display: flex; flex-wrap: wrap; gap: .35rem; }
.scale-btn {
    padding: .3rem .75rem;
    font-size: .82rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    color: #374151;
    transition: all .15s;
    user-select: none;
}
.scale-btn:hover { border-color: #93c5fd; background: #f0f7ff; }
.scale-btn.active {
    border-color: #0d6efd;
    background: #0d6efd;
    color: #fff;
    font-weight: 600;
}

.bg-swatches { display: flex; gap: .4rem; flex-wrap: wrap; align-items: center; }
.bg-swatch {
    width: 32px; height: 32px;
    border-radius: 6px;
    border: 2px solid #e5e7eb;
    cursor: pointer;
    position: relative;
    transition: all .15s;
}
.bg-swatch:hover { border-color: #93c5fd; }
.bg-swatch.active {
    border-color: #0d6efd;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, .15);
}
.bg-swatch.checked::after {
    content: '✓';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    text-shadow: 0 0 3px rgba(0,0,0,.7);
}
.bg-swatch[data-bg="transparent"] {
    background-image:
        linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
        linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
    background-size: 10px 10px;
    background-position: 0 0, 0 5px, 5px -5px, -5px 0;
    background-color: #fff;
}

.svg-compare {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
        linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-color: #fff;
    border-radius: 8px;
    line-height: 0;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.svg-compare img {
    max-width: 100%;
    max-height: 70vh;
    display: block;
}

.fg-mode-group { display: flex; gap: .3rem; }
.fg-mode-group .btn { flex: 1; padding: .2rem .4rem; font-size: .78rem; }