/* GIF Upscaler - tool-specific styles
   Pairs with /css/tool-shared.css */

@keyframes loader-spin { to { transform: rotate(360deg); } }
.loader-spin { animation: loader-spin 0.9s linear infinite; }

/* Preview pane with transparency checker */
.upscaler-preview {
    margin: 18px 0 22px;
}
.upscaler-preview__wrap {
    background-color: var(--card-secondary, #f6f7f9);
    background-image:
        linear-gradient(45deg, rgba(0,0,0,0.05) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(0,0,0,0.05) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(0,0,0,0.05) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(0,0,0,0.05) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 8px);
    padding: 14px;
    text-align: center;
    overflow: hidden;
}
.upscaler-preview__wrap img {
    max-width: 100%;
    max-height: 320px;
    height: auto;
    border-radius: 4px;
}
.upscaler-preview__meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.92rem;
}
.upscaler-preview__before strong,
.upscaler-preview__after strong {
    color: var(--text-primary);
}
.upscaler-preview__after {
    color: var(--primary);
}

/* Hide sharpen amount row until enabled (also handled inline by JS) */
#sharpenAmountRow {
    margin-left: 14px;
    padding-left: 14px;
    position: relative;
}
#sharpenAmountRow::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--border-color);
    border-radius: 1px;
}