/**
 * comparison.css - AS-IS vs TO-BE Comparison Tool Styles
 * Professional comparison interface with dark theme
 * Created: November 24, 2024
 */

.comparison-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    background: var(--bg-primary, #11111b);
    color: var(--text-primary, #f2f2ed);
    padding: 20px;
    gap: 20px;
    overflow-y: auto;
}

/* ============================================================================
   PROCESS SELECTOR
   ============================================================================ */

.process-selector-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 20px 0;
}

.selector-panel {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.selector-panel h3 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.selector-description {
    margin: 0 0 20px 0;
    font-size: 13px;
    color: var(--text-secondary, #cdd6f4);
}

.process-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 500px;
    overflow-y: auto;
}

.process-card {
    background: rgba(49, 50, 68, 0.6);
    border: 2px solid var(--border-color, #313244);
    border-radius: 8px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.process-card:hover {
    border-color: var(--primary, #89b4fa);
    background: rgba(137, 180, 250, 0.1);
    transform: translateX(-2px);
}

.process-card.selected {
    border-color: var(--primary, #89b4fa);
    background: rgba(137, 180, 250, 0.2);
}

.process-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.process-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.process-status {
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.process-status.status-draft {
    background: rgba(249, 226, 175, 0.2);
    color: var(--warning, #f9e2af);
}

.process-status.status-candidate {
    background: rgba(137, 180, 250, 0.2);
    color: var(--primary, #89b4fa);
}

.process-status.status-best {
    background: rgba(166, 227, 161, 0.2);
    color: var(--success, #a6e3a1);
}

.process-description {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
    margin-bottom: 8px;
    line-height: 1.4;
}

.process-meta {
    display: flex;
    gap: 15px;
    font-size: 11px;
    color: var(--text-muted, #a6adc8);
}

.empty-state-small {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary, #cdd6f4);
}

.empty-state-small .hint {
    font-size: 12px;
    color: var(--text-muted, #a6adc8);
    margin-top: 8px;
}

/* Selection Summary */
.selection-summary {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.selection-summary h3 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.summary-item {
    display: flex;
    gap: 10px;
}

.summary-label {
    font-weight: 600;
    color: var(--text-secondary, #cdd6f4);
}

.summary-value {
    color: var(--text-primary, #f2f2ed);
}

/* ============================================================================
   COMPARISON VIEW
   ============================================================================ */

.comparison-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(30, 30, 46, 0.95);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 15px 20px;
}

.comparison-title h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.view-tabs {
    display: flex;
    gap: 10px;
}

.tab-btn {
    padding: 8px 16px;
    background: rgba(49, 50, 68, 0.8);
    color: var(--text-primary, #f2f2ed);
    border: 1px solid var(--border-color, #313244);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: rgba(137, 180, 250, 0.2);
    border-color: var(--primary, #89b4fa);
}

.tab-btn.active {
    background: var(--primary, #89b4fa);
    color: var(--bg-primary, #11111b);
    border-color: var(--primary, #89b4fa);
}

/* Side-by-side Canvas View */
.side-by-side-view {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    height: 600px;
}

.canvas-panel {
    display: flex;
    flex-direction: column;
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    overflow: hidden;
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color, #313244);
}

.canvas-header.as-is {
    background: rgba(243, 139, 168, 0.1);
}

.canvas-header.to-be {
    background: rgba(166, 227, 161, 0.1);
}

.canvas-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.canvas-controls {
    display: flex;
    gap: 8px;
}

.canvas-control-btn {
    padding: 6px 12px;
    background: rgba(49, 50, 68, 0.8);
    color: var(--text-primary, #f2f2ed);
    border: 1px solid var(--border-color, #313244);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
}

.canvas-control-btn:hover {
    background: rgba(137, 180, 250, 0.2);
    border-color: var(--primary, #89b4fa);
}

.canvas-wrapper {
    flex: 1;
    position: relative;
    background: rgba(17, 17, 27, 0.5);
    overflow: hidden;
}

.comparison-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.canvas-stats {
    display: flex;
    gap: 20px;
    padding: 10px 20px;
    background: rgba(49, 50, 68, 0.5);
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
    border-top: 1px solid var(--border-color, #313244);
}

/* Difference Summary */
.difference-summary {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.difference-summary h3 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
}

.difference-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.diff-card {
    background: rgba(49, 50, 68, 0.6);
    border: 1px solid var(--border-color, #313244);
    border-radius: 8px;
    padding: 15px;
    text-align: center;
}

.diff-card.added {
    border-left: 4px solid var(--success, #a6e3a1);
}

.diff-card.removed {
    border-left: 4px solid var(--error, #f38ba8);
}

.diff-card.common {
    border-left: 4px solid var(--primary, #89b4fa);
}

.diff-label {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
    margin-bottom: 8px;
}

.diff-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary, #f2f2ed);
}

/* ============================================================================
   METRICS VIEW
   ============================================================================ */

.metrics-comparison-table {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table thead {
    background: rgba(49, 50, 68, 0.8);
}

.comparison-table th {
    padding: 12px 15px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary, #cdd6f4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color, #313244);
}

.comparison-table td {
    padding: 12px 15px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color, #313244);
}

.metric-row {
    transition: background 0.2s ease;
}

.metric-row:hover {
    background: rgba(137, 180, 250, 0.05);
}

.metric-row.improvement {
    background: rgba(166, 227, 161, 0.05);
}

.metric-row.degradation {
    background: rgba(243, 139, 168, 0.05);
}

.metric-name {
    font-weight: 500;
    color: var(--text-primary, #f2f2ed);
}

.metric-value {
    color: var(--text-secondary, #cdd6f4);
}

.metric-change {
    font-weight: 600;
}

.metric-change.positive {
    color: var(--success, #a6e3a1);
}

.metric-change.negative {
    color: var(--error, #f38ba8);
}

.metric-change.neutral {
    color: var(--text-muted, #a6adc8);
}

.impact-indicator {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
}

.impact-indicator.high {
    background: rgba(243, 139, 168, 0.2);
    color: var(--error, #f38ba8);
}

.impact-indicator.medium {
    background: rgba(249, 226, 175, 0.2);
    color: var(--warning, #f9e2af);
}

.impact-indicator.low {
    background: rgba(137, 180, 250, 0.2);
    color: var(--primary, #89b4fa);
}

/* Improvement Summary */
.improvement-summary {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.improvement-summary h3 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.summary-card {
    background: rgba(49, 50, 68, 0.6);
    border: 1px solid var(--border-color, #313244);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.summary-card.positive {
    border-left: 4px solid var(--success, #a6e3a1);
}

.summary-card.negative {
    border-left: 4px solid var(--error, #f38ba8);
}

.summary-card.neutral {
    border-left: 4px solid var(--text-muted, #a6adc8);
}

.card-label {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
    margin-bottom: 8px;
}

.card-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary, #f2f2ed);
}

/* ============================================================================
   ROI VIEW
   ============================================================================ */

.roi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.roi-section {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.roi-section.full-width {
    grid-column: 1 / -1;
}

.roi-section h3 {
    margin: 0 0 20px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.roi-inputs {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.roi-input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.roi-input-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary, #cdd6f4);
}

.roi-input {
    padding: 10px 12px;
    background: rgba(49, 50, 68, 0.6);
    border: 1px solid var(--border-color, #313244);
    border-radius: 6px;
    color: var(--text-primary, #f2f2ed);
    font-size: 14px;
    transition: all 0.2s ease;
}

.roi-input:focus {
    outline: none;
    border-color: var(--primary, #89b4fa);
    background: rgba(49, 50, 68, 0.8);
}

.roi-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-top: 2px solid var(--border-color, #313244);
    margin-top: 10px;
}

.roi-total strong {
    font-size: 14px;
    color: var(--text-primary, #f2f2ed);
}

.roi-total-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary, #f2f2ed);
}

.roi-total-value.positive {
    color: var(--success, #a6e3a1);
}

.roi-results {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.roi-result-card {
    background: rgba(49, 50, 68, 0.6);
    border: 1px solid var(--border-color, #313244);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.result-label {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
    margin-bottom: 10px;
}

.result-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary, #f2f2ed);
}

.result-value.positive {
    color: var(--success, #a6e3a1);
}

.result-value.negative {
    color: var(--error, #f38ba8);
}

.roi-timeline {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-top: 1px solid var(--border-color, #313244);
    border-bottom: 1px solid var(--border-color, #313244);
}

.roi-timeline label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary, #cdd6f4);
}

.roi-timeline input[type="range"] {
    flex: 1;
}

.roi-timeline span {
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.roi-recommendation {
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.roi-recommendation.success {
    background: rgba(166, 227, 161, 0.1);
    border: 1px solid var(--success, #a6e3a1);
}

.roi-recommendation.warning {
    background: rgba(249, 226, 175, 0.1);
    border: 1px solid var(--warning, #f9e2af);
}

.roi-recommendation.error {
    background: rgba(243, 139, 168, 0.1);
    border: 1px solid var(--error, #f38ba8);
}

.roi-recommendation h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
    font-weight: 600;
}

.roi-recommendation.success h4 {
    color: var(--success, #a6e3a1);
}

.roi-recommendation.warning h4 {
    color: var(--warning, #f9e2af);
}

.roi-recommendation.error h4 {
    color: var(--error, #f38ba8);
}

.roi-recommendation p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary, #cdd6f4);
}

/* ============================================================================
   ACTION BUTTONS
   ============================================================================ */

.tool-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    padding: 20px 0;
}

.action-btn {
    padding: 12px 24px;
    border: 1px solid var(--border-color, #313244);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.action-btn.primary {
    background: var(--primary, #89b4fa);
    color: var(--bg-primary, #11111b);
    border-color: var(--primary, #89b4fa);
}

.action-btn.primary:hover:not(:disabled) {
    background: #6c9ff0;
    border-color: #6c9ff0;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(137, 180, 250, 0.3);
}

.action-btn.secondary {
    background: rgba(49, 50, 68, 0.8);
    color: var(--text-primary, #f2f2ed);
    border-color: var(--border-color, #313244);
}

.action-btn.secondary:hover:not(:disabled) {
    background: rgba(49, 50, 68, 1);
    border-color: var(--primary, #89b4fa);
    transform: translateY(-1px);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.nav-btn {
    padding: 8px 16px;
    background: rgba(49, 50, 68, 0.8);
    color: var(--text-primary, #f2f2ed);
    border: 1px solid var(--border-color, #313244);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    background: rgba(49, 50, 68, 1);
    border-color: var(--primary, #89b4fa);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 1200px) {
    .process-selector-grid {
        grid-template-columns: 1fr;
    }

    .side-by-side-view {
        grid-template-columns: 1fr;
        height: auto;
    }

    .canvas-panel {
        height: 500px;
    }

    .roi-grid {
        grid-template-columns: 1fr;
    }

    .roi-results {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .comparison-nav {
        flex-direction: column;
        gap: 15px;
    }

    .view-tabs {
        width: 100%;
        justify-content: space-between;
    }

    .tab-btn {
        flex: 1;
        font-size: 12px;
    }

    .difference-cards,
    .summary-cards {
        grid-template-columns: 1fr;
    }

    .roi-results {
        grid-template-columns: 1fr;
    }

    .tool-actions {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
    }
}

/* ============================================================================
   SCROLLBAR STYLING
   ============================================================================ */

.process-list::-webkit-scrollbar,
.comparison-container::-webkit-scrollbar {
    width: 8px;
}

.process-list::-webkit-scrollbar-track,
.comparison-container::-webkit-scrollbar-track {
    background: rgba(49, 50, 68, 0.3);
}

.process-list::-webkit-scrollbar-thumb,
.comparison-container::-webkit-scrollbar-thumb {
    background: rgba(137, 180, 250, 0.3);
    border-radius: 4px;
}

.process-list::-webkit-scrollbar-thumb:hover,
.comparison-container::-webkit-scrollbar-thumb:hover {
    background: rgba(137, 180, 250, 0.5);
}

/* ============================================================================
   WHAT CHANGED VIEW
   ============================================================================ */

/* Summary Cards */
.changes-summary {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
}

.changes-summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.summary-stat-card {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(49, 50, 68, 0.6);
    border: 1px solid var(--border-color, #313244);
    border-radius: 8px;
    padding: 15px;
}

.summary-stat-card.added {
    border-left: 4px solid var(--success, #a6e3a1);
}

.summary-stat-card.removed {
    border-left: 4px solid var(--error, #f38ba8);
}

.summary-stat-card.modified {
    border-left: 4px solid var(--warning, #f9e2af);
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.structural {
    background: rgba(137, 180, 250, 0.2);
}

.stat-icon.added {
    background: rgba(166, 227, 161, 0.2);
}

.stat-icon.removed {
    background: rgba(243, 139, 168, 0.2);
}

.stat-icon.modified {
    background: rgba(249, 226, 175, 0.2);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary, #f2f2ed);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
}

/* Approval Progress */
.approval-progress {
    background: rgba(49, 50, 68, 0.4);
    border-radius: 8px;
    padding: 15px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.progress-header h4 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
}

.progress-text {
    font-size: 12px;
    color: var(--text-secondary, #cdd6f4);
}

.progress-bar-container {
    display: flex;
    height: 8px;
    background: rgba(49, 50, 68, 0.8);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-bar {
    height: 100%;
    transition: width 0.3s ease;
}

.progress-bar.approved {
    background: var(--success, #a6e3a1);
}

.progress-bar.disregarded {
    background: var(--warning, #f9e2af);
}

.progress-legend {
    display: flex;
    gap: 20px;
    font-size: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-item::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.legend-item.approved::before {
    background: var(--success, #a6e3a1);
}

.legend-item.disregarded::before {
    background: var(--warning, #f9e2af);
}

.legend-item.pending::before {
    background: var(--text-muted, #a6adc8);
}

/* Filter Controls */
.changes-filter {
    display: flex;
    gap: 20px;
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 15px 20px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary, #cdd6f4);
    white-space: nowrap;
}

.filter-select {
    padding: 8px 12px;
    background: rgba(49, 50, 68, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 6px;
    color: var(--text-primary, #f2f2ed);
    font-size: 13px;
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary, #89b4fa);
}

/* Changes List */
.changes-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-height: 600px;
    overflow-y: auto;
}

.no-changes {
    text-align: center;
    padding: 60px 20px;
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
}

.no-changes h4 {
    margin: 0 0 10px 0;
    color: var(--text-primary, #f2f2ed);
}

.no-changes p {
    margin: 0;
    color: var(--text-secondary, #cdd6f4);
}

/* Individual Change Item */
.change-item {
    background: rgba(30, 30, 46, 0.8);
    border: 1px solid var(--border-color, #313244);
    border-radius: 10px;
    padding: 20px;
    transition: all 0.2s ease;
}

.change-item:hover {
    border-color: var(--primary, #89b4fa);
}

.change-item.approved {
    border-left: 4px solid var(--success, #a6e3a1);
    background: rgba(166, 227, 161, 0.05);
}

.change-item.disregarded {
    border-left: 4px solid var(--warning, #f9e2af);
    background: rgba(249, 226, 175, 0.05);
    opacity: 0.7;
}

.change-item.pending {
    border-left: 4px solid var(--primary, #89b4fa);
}

.change-item.high {
    border-left-color: var(--error, #f38ba8);
}

.change-item.pending.high {
    border-left-color: var(--error, #f38ba8);
}

/* Change Header */
.change-header {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
}

.change-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
}

.change-icon.gateway,
.change-icon.gateway-add,
.change-icon.gateway-remove {
    background: rgba(249, 226, 175, 0.2);
}

.change-icon.gateway::after { content: '\u25C7'; color: var(--warning, #f9e2af); }
.change-icon.gateway-add::after { content: '+\u25C7'; color: var(--success, #a6e3a1); }
.change-icon.gateway-remove::after { content: '-\u25C7'; color: var(--error, #f38ba8); }

.change-icon.activity-add,
.change-icon.activity-remove,
.change-icon.activity-modify,
.change-icon.activity-move {
    background: rgba(137, 180, 250, 0.2);
}

.change-icon.activity-add::after { content: '+\u25A1'; color: var(--success, #a6e3a1); }
.change-icon.activity-remove::after { content: '-\u25A1'; color: var(--error, #f38ba8); }
.change-icon.activity-modify::after { content: '\u270E'; color: var(--primary, #89b4fa); }
.change-icon.activity-move::after { content: '\u2194'; color: var(--primary, #89b4fa); }

.change-icon.connection-add,
.change-icon.connection-remove,
.change-icon.connection-reroute {
    background: rgba(166, 227, 161, 0.2);
}

.change-icon.connection-add::after { content: '+\u2192'; color: var(--success, #a6e3a1); }
.change-icon.connection-remove::after { content: '-\u2192'; color: var(--error, #f38ba8); }
.change-icon.connection-reroute::after { content: '\u21BB'; color: var(--warning, #f9e2af); }

.change-info {
    flex: 1;
}

.change-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #f2f2ed);
    margin-bottom: 8px;
}

.change-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.change-category,
.change-type {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(137, 180, 250, 0.2);
    color: var(--primary, #89b4fa);
}

.change-severity {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.change-severity.severity-high {
    background: rgba(243, 139, 168, 0.2);
    color: var(--error, #f38ba8);
}

.change-severity.severity-medium {
    background: rgba(249, 226, 175, 0.2);
    color: var(--warning, #f9e2af);
}

.change-severity.severity-low {
    background: rgba(166, 227, 161, 0.2);
    color: var(--success, #a6e3a1);
}

.change-status {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.change-status.status-pending {
    background: rgba(137, 180, 250, 0.2);
    color: var(--primary, #89b4fa);
}

.change-status.status-approved {
    background: rgba(166, 227, 161, 0.2);
    color: var(--success, #a6e3a1);
}

.change-status.status-disregarded {
    background: rgba(249, 226, 175, 0.2);
    color: var(--warning, #f9e2af);
}

/* Change Details */
.change-details {
    background: rgba(49, 50, 68, 0.4);
    border-radius: 6px;
    padding: 10px 15px;
    margin-bottom: 15px;
    font-size: 13px;
}

.details-label {
    font-weight: 600;
    color: var(--text-secondary, #cdd6f4);
    margin-right: 8px;
}

.details-value {
    color: var(--text-primary, #f2f2ed);
}

/* Change Comparison (Before/After) */
.change-comparison {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(49, 50, 68, 0.4);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

.comparison-side {
    flex: 1;
    padding: 10px 15px;
    border-radius: 6px;
}

.comparison-side.before {
    background: rgba(243, 139, 168, 0.1);
    border: 1px solid rgba(243, 139, 168, 0.3);
}

.comparison-side.after {
    background: rgba(166, 227, 161, 0.1);
    border: 1px solid rgba(166, 227, 161, 0.3);
}

.comparison-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.comparison-side.before .comparison-label {
    color: var(--error, #f38ba8);
}

.comparison-side.after .comparison-label {
    color: var(--success, #a6e3a1);
}

.comparison-value {
    font-size: 13px;
    color: var(--text-primary, #f2f2ed);
}

.comparison-value .element-type {
    color: var(--text-muted, #a6adc8);
    font-size: 12px;
}

.comparison-value .element-position {
    color: var(--text-muted, #a6adc8);
    font-size: 11px;
}

.comparison-arrow {
    font-size: 24px;
    color: var(--text-muted, #a6adc8);
    flex-shrink: 0;
}

/* Change Action Buttons */
.change-actions {
    display: flex;
    gap: 10px;
}

.change-action-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.change-action-btn.approve {
    background: rgba(166, 227, 161, 0.2);
    color: var(--success, #a6e3a1);
    border-color: var(--success, #a6e3a1);
}

.change-action-btn.approve:hover:not(:disabled) {
    background: rgba(166, 227, 161, 0.3);
}

.change-action-btn.approve.active {
    background: var(--success, #a6e3a1);
    color: var(--bg-primary, #11111b);
}

.change-action-btn.disregard {
    background: rgba(249, 226, 175, 0.2);
    color: var(--warning, #f9e2af);
    border-color: var(--warning, #f9e2af);
}

.change-action-btn.disregard:hover:not(:disabled) {
    background: rgba(249, 226, 175, 0.3);
}

.change-action-btn.disregard.active {
    background: var(--warning, #f9e2af);
    color: var(--bg-primary, #11111b);
}

.change-action-btn.reset {
    background: rgba(137, 180, 250, 0.2);
    color: var(--primary, #89b4fa);
    border-color: var(--border-color, #313244);
}

.change-action-btn.reset:hover {
    background: rgba(137, 180, 250, 0.3);
}

.change-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Changes Actions (Bulk) */
.changes-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    padding: 20px 0;
    flex-wrap: wrap;
}

.action-btn.success {
    background: var(--success, #a6e3a1);
    color: var(--bg-primary, #11111b);
    border-color: var(--success, #a6e3a1);
}

.action-btn.success:hover:not(:disabled) {
    background: #8fd392;
    border-color: #8fd392;
}

.action-btn.warning {
    background: var(--warning, #f9e2af);
    color: var(--bg-primary, #11111b);
    border-color: var(--warning, #f9e2af);
}

.action-btn.warning:hover:not(:disabled) {
    background: #f5d490;
    border-color: #f5d490;
}

/* Responsive for Changes View */
@media (max-width: 1200px) {
    .changes-summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .changes-summary-cards {
        grid-template-columns: 1fr;
    }

    .changes-filter {
        flex-direction: column;
    }

    .filter-group {
        width: 100%;
    }

    .filter-select {
        flex: 1;
    }

    .change-header {
        flex-direction: column;
    }

    .change-comparison {
        flex-direction: column;
    }

    .comparison-arrow {
        transform: rotate(90deg);
    }

    .change-actions {
        flex-wrap: wrap;
    }

    .change-action-btn {
        flex: 1;
        min-width: 100px;
    }
}

/* Changes List Scrollbar */
.changes-list::-webkit-scrollbar {
    width: 8px;
}

.changes-list::-webkit-scrollbar-track {
    background: rgba(49, 50, 68, 0.3);
}

.changes-list::-webkit-scrollbar-thumb {
    background: rgba(137, 180, 250, 0.3);
    border-radius: 4px;
}

.changes-list::-webkit-scrollbar-thumb:hover {
    background: rgba(137, 180, 250, 0.5);
}