/* Background Image Remover Tool Styles */

.bg-remover-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.bg-remover-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    background-color: var(--bg-card);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.bg-remover-dropzone:hover,
.bg-remover-dropzone.dragover {
    border-color: var(--primary);
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.dropzone-icon-wrap {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px auto;
    border-radius: 16px;
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropzone-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.dropzone-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.bg-remover-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.preview-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.img-preview-box {
    width: 100%;
    height: 320px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: var(--bg-primary);
}

.checkerboard-bg {
    background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
                      linear-gradient(-45deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
                      linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%),
                      linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.img-preview-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Loading & Progress Bar */
.bg-remover-status {
    padding: 24px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.progress-bar-wrap {
    width: 100%;
    height: 8px;
    background-color: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

/* Action Controls Bar */
.bg-remover-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

@media (max-width: 640px) {
    .bg-remover-preview-grid {
        grid-template-columns: 1fr;
    }
    
    .img-preview-box {
        height: 240px;
    }
}