/* Diff tool: griglie output + evidenziazione diff (il resto usa primitive tools-*) */

.diff-input-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}
@media (min-width: 1024px) {
    .diff-input-grid { grid-template-columns: 1fr 1fr; }
}

.diff-stats { font-size: 0.85rem; }
.diff-stat-add { color: var(--c-success-accent); font-weight: 700; }
.diff-stat-rem { color: var(--c-danger-accent); font-weight: 700; }
.diff-stat-eq  { color: var(--c-ink-mute); }

.diff-output-heading {
    margin: 1.25rem 0 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--c-ink);
}

.diff-side-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}
@media (min-width: 1024px) {
    .diff-side-grid { grid-template-columns: 1fr 1fr; }
}

.diff-side-pane,
.diff-inline-pane {
    margin: 0;
    padding: 0.85rem 1rem;
    background: var(--c-bg);
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.55;
    overflow: auto;
    max-height: 500px;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--c-ink);
}

.diff-added   { background: #d4f5e1; color: #064e3b; }
.diff-removed { background: var(--c-danger-strong-bg); color: var(--c-danger-fg); text-decoration: line-through; }
.diff-empty   { color: var(--c-ink-mute); font-style: italic; }

.diff-patch {
    background: var(--c-bg);
    font-size: 12px;
    margin-top: 0.5rem;
}