/**
 * Diff Styles for Version Comparison
 * Inline highlighting of additions, modifications, and removals
 */

/* Diff Toggle Container */
.diff-toggle-container {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 12px 16px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

/* Change Summary */
.diff-summary {
    flex: 1;
    min-width: 300px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.diff-summary strong {
    color: #495057;
    margin-right: 8px;
}

/* Change Counts */
.diff-counts {
    display: inline-flex;
    gap: 12px;
    margin-left: 12px;
    font-size: 0.9rem;
    font-weight: 500;
}

.diff-count-added {
    color: #28a745;
}

.diff-count-modified {
    color: #fd7e14;
}

.diff-count-removed {
    color: #dc3545;
}

/* Toggle Button */
.diff-toggle-button {
    background: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.diff-toggle-button:hover {
    background: #0056b3;
}

.diff-toggle-button.active {
    background: #28a745;
}

.diff-toggle-button.active:hover {
    background: #218838;
}

.diff-toggle-button .toggle-icon {
    font-size: 1.1em;
}

/* Diff Highlighting - Visible by Default */
.diff-added {
    background-color: #d4edda;
    border-left: 3px solid #28a745;
    padding: 2px 4px;
    margin: 2px 0;
    display: inline-block;
}

.diff-modified {
    background-color: #fff3cd;
    border-left: 3px solid #fd7e14;
    padding: 2px 4px;
    margin: 2px 0;
    display: inline-block;
}

.diff-removed {
    background-color: #f8d7da;
    border-left: 3px solid #dc3545;
    padding: 2px 4px;
    margin: 2px 0;
    display: inline-block;
    text-decoration: line-through;
    opacity: 0.7;
}

/* Hide diffs when toggle is off */
.diff-hidden .diff-added,
.diff-hidden .diff-modified {
    background-color: transparent;
    border-left: none;
    padding: 0;
    margin: 0;
}

.diff-hidden .diff-removed {
    display: none;
}

/* Block-level diffs (for sections like senses, attestations) */
.diff-added-block {
    border: 2px solid #28a745;
    border-radius: 4px;
    padding: 12px;
    margin: 8px 0;
    background-color: rgba(40, 167, 69, 0.05);
}

.diff-modified-block {
    border: 2px solid #fd7e14;
    border-radius: 4px;
    padding: 12px;
    margin: 8px 0;
    background-color: rgba(253, 126, 20, 0.05);
}

.diff-removed-block {
    border: 2px solid #dc3545;
    border-radius: 4px;
    padding: 12px;
    margin: 8px 0;
    background-color: rgba(220, 53, 69, 0.05);
    opacity: 0.6;
}

/* Hide block diffs when toggle is off */
.diff-hidden .diff-added-block,
.diff-hidden .diff-modified-block {
    border: none;
    background-color: transparent;
    padding: 0;
}

.diff-hidden .diff-removed-block {
    display: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .diff-toggle-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .diff-summary {
        min-width: 100%;
    }

    .diff-toggle-button {
        width: 100%;
        justify-content: center;
    }

    .diff-counts {
        display: flex;
        margin-left: 0;
        margin-top: 8px;
    }
}

/* Print styles - always hide diff highlighting when printing */
@media print {
    .diff-toggle-container {
        display: none;
    }

    .diff-added,
    .diff-modified,
    .diff-removed,
    .diff-added-block,
    .diff-modified-block,
    .diff-removed-block {
        background: none !important;
        border: none !important;
        color: inherit !important;
    }

    .diff-removed,
    .diff-removed-block {
        display: none !important;
    }
}