.diff-output {
    margin-top: 20px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    white-space: pre;
    padding: 0;
}

.diff-line {
    display: flex;
    width: 100%;
    min-width: fit-content;
}

.diff-line-number {
    width: 40px;
    text-align: right;
    padding-right: 10px;
    color: #a0aec0;
    user-select: none;
    background: #f7fafc;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
}

.diff-content {
    padding-left: 10px;
    flex: 1;
}

.diff-added {
    background-color: #e6fffa;
}

.diff-added .diff-content {
    color: #2c7a7b;
}

.diff-removed {
    background-color: #fff5f5;
}

.diff-removed .diff-content {
    color: #c53030;
}

.diff-header {
    padding: 10px;
    background: #f7fafc;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-secondary);
}

.format-controls {
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
    align-items: center;
}

.format-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}