/* Civil Litigation Dynamics Simulator - Styles */

:root {
    /* Color palette */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    /* Party colors */
    --plaintiff-primary: #58a6ff;
    --plaintiff-secondary: #1f6feb;
    --plaintiff-bg: rgba(88, 166, 255, 0.1);
    --defendant-primary: #f78166;
    --defendant-secondary: #da3633;
    --defendant-bg: rgba(247, 129, 102, 0.1);

    /* Status colors */
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
    --info: #58a6ff;

    /* Special colors */
    --zopa-color: rgba(63, 185, 80, 0.3);
    --zopa-border: #3fb950;
    --settlement-color: #a371f7;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Typography */
    --font-mono: 'SF Mono', 'Consolas', 'Liberation Mono', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;

    /* Borders */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.header h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.time-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 13px;
}

.time-display .label {
    color: var(--text-secondary);
}

.time-display #current-day {
    color: var(--info);
    font-weight: 600;
    min-width: 40px;
}

.time-display #current-phase {
    color: var(--success);
    font-weight: 500;
    padding: 2px 8px;
    background: rgba(63, 185, 80, 0.15);
    border-radius: var(--radius-sm);
}

.time-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-control {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.btn-control:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.btn-control.active {
    background: var(--info);
    border-color: var(--info);
    color: white;
}

.speed-slider {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 12px;
}

.speed-slider input[type="range"] {
    width: 80px;
}

/* Buttons */
.btn-action {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--plaintiff-secondary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-action:hover:not(:disabled) {
    background: var(--plaintiff-primary);
}

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

.btn-secondary {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.btn-secondary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-offer {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--settlement-color);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 11px;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-offer:hover:not(:disabled) {
    background: #8957e5;
}

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

.btn-surprise {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px dashed var(--warning);
    border-radius: var(--radius-md);
    color: var(--warning);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-surprise:hover:not(:disabled) {
    background: rgba(210, 153, 34, 0.15);
}

.btn-surprise:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-style: solid;
}

.btn-collapse {
    width: 24px;
    height: 24px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}

/* Main Layout */
.main-container {
    display: grid;
    grid-template-columns: 300px 1fr 320px;
    gap: 0;
    flex: 1;
    overflow: hidden;
}

/* Panels */
.panel {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel:last-child {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

.panel-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.panel-header h2 {
    font-size: 14px;
    font-weight: 600;
}

.panel-content {
    overflow-y: auto;
    flex: 1;
    padding: var(--spacing-md);
}

.panel-content.collapsed {
    display: none;
}

/* Config Panel */
.config-panel {
    width: 300px;
}

.config-section {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.config-section:last-child {
    border-bottom: none;
}

.config-section h3 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.config-group {
    margin-bottom: var(--spacing-md);
}

.config-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    font-size: 13px;
}

.label-text {
    color: var(--text-primary);
}

.label-value {
    color: var(--info);
    font-family: var(--font-mono);
    font-size: 12px;
}

.config-group input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 3px;
    cursor: pointer;
}

.config-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--info);
    border-radius: 50%;
    cursor: pointer;
}

.config-group input[type="number"],
.config-group select {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-mono);
}

.config-group select {
    cursor: pointer;
}

.dual-input {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dual-input input {
    flex: 1;
}

.dual-input span {
    color: var(--text-secondary);
    font-size: 12px;
}

.hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.sub-options {
    margin-top: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--border-color);
}

.sub-options.hidden {
    display: none;
}

/* Visualization Area */
.visualization-area {
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.viz-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.viz-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* Value Distributions */
.distribution-container {
    display: flex;
    gap: var(--spacing-lg);
}

.distribution-chart {
    flex: 1;
    min-height: 200px;
    position: relative;
}

.distribution-chart canvas {
    width: 100%;
    height: 200px;
}

.distribution-stats {
    width: 240px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-block {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
}

.stat-block.plaintiff {
    border-left: 3px solid var(--plaintiff-primary);
}

.stat-block.defendant {
    border-left: 3px solid var(--defendant-primary);
}

.stat-block h4 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
}

.stat-value {
    font-family: var(--font-mono);
    font-weight: 500;
}

.stat-block.plaintiff .stat-value {
    color: var(--plaintiff-primary);
}

.stat-block.defendant .stat-value {
    color: var(--defendant-primary);
}

/* Bargaining Zone */
.bargaining-container {
    position: relative;
}

.bargaining-container canvas {
    width: 100%;
    height: 120px;
}

.bargaining-legend {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 11px;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.legend-color.plaintiff-min {
    background: var(--plaintiff-primary);
}

.legend-color.defendant-max {
    background: var(--defendant-primary);
}

.legend-color.zopa {
    background: var(--zopa-color);
    border: 1px solid var(--zopa-border);
}

.bargaining-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Timeline */
.timeline-container {
    position: relative;
    min-height: 150px;
}

.timeline-container canvas {
    width: 100%;
    height: 150px;
}

.cost-meters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.cost-meter {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.cost-meter.plaintiff {
    border-top: 2px solid var(--plaintiff-primary);
}

.cost-meter.defendant {
    border-top: 2px solid var(--defendant-primary);
}

.meter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    margin-bottom: var(--spacing-sm);
}

.meter-header span:first-child {
    color: var(--text-secondary);
}

.meter-value {
    font-family: var(--font-mono);
    font-weight: 600;
}

.cost-meter.plaintiff .meter-value {
    color: var(--plaintiff-primary);
}

.cost-meter.defendant .meter-value {
    color: var(--defendant-primary);
}

.meter-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.cost-meter.plaintiff .meter-fill {
    background: linear-gradient(90deg, var(--plaintiff-secondary), var(--plaintiff-primary));
}

.cost-meter.defendant .meter-fill {
    background: linear-gradient(90deg, var(--defendant-secondary), var(--defendant-primary));
}

.meter-budget {
    position: absolute;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--danger);
}

.meter-footer {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.burn-rate {
    color: var(--warning);
}

/* Information Asymmetry */
.info-container {
    display: flex;
    gap: var(--spacing-lg);
}

.info-bars {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-bar-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.info-label {
    width: 140px;
    font-size: 12px;
    color: var(--text-secondary);
}

.info-bar {
    flex: 1;
    height: 20px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
}

.info-known {
    height: 100%;
    transition: width 0.5s ease;
}

.info-bar-group:first-child .info-known {
    background: var(--plaintiff-secondary);
}

.info-bar-group:nth-child(2) .info-known {
    background: var(--defendant-secondary);
}

.info-discovered {
    height: 100%;
    transition: width 0.5s ease;
}

.info-bar-group:first-child .info-discovered {
    background: var(--plaintiff-primary);
}

.info-bar-group:nth-child(2) .info-discovered {
    background: var(--defendant-primary);
}

.info-bar.shared .info-shared {
    background: linear-gradient(90deg, var(--plaintiff-primary), var(--defendant-primary));
}

.info-percent {
    width: 40px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-primary);
    text-align: right;
}

.info-gap-indicator {
    width: 200px;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.gap-label {
    font-size: 11px;
    color: var(--text-muted);
}

.gap-value {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--warning);
    margin: var(--spacing-xs) 0;
}

.gap-description {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Actions Panel */
.actions-panel {
    width: 320px;
}

.action-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.action-section h3 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.action-buttons .btn-action {
    font-size: 11px;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.action-buttons.procedural {
    grid-template-columns: 1fr 1fr;
}

.action-buttons.surprises {
    grid-template-columns: 1fr;
}

/* Settlement Controls */
.settlement-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.offer-input {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-sm);
    align-items: end;
}

.offer-input label {
    grid-column: 1 / -1;
    font-size: 11px;
    color: var(--text-secondary);
}

.offer-input input {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
}

.offer-history {
    max-height: 120px;
    overflow-y: auto;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
}

.offer-placeholder {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-md);
}

.offer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 11px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
}

.offer-item.plaintiff {
    background: var(--plaintiff-bg);
    color: var(--plaintiff-primary);
}

.offer-item.defendant {
    background: var(--defendant-bg);
    color: var(--defendant-primary);
}

.offer-item .offer-amount {
    font-family: var(--font-mono);
    font-weight: 600;
}

/* Event Log */
.event-log-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.event-log {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
}

.event-item {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 11px;
    line-height: 1.4;
    display: flex;
    gap: var(--spacing-sm);
}

.event-item:last-child {
    margin-bottom: 0;
}

.event-item.system {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.event-item.plaintiff {
    background: var(--plaintiff-bg);
    border-left: 2px solid var(--plaintiff-primary);
}

.event-item.defendant {
    background: var(--defendant-bg);
    border-left: 2px solid var(--defendant-primary);
}

.event-item.court {
    background: rgba(163, 113, 247, 0.1);
    border-left: 2px solid var(--settlement-color);
}

.event-item.settlement {
    background: var(--zopa-color);
    border-left: 2px solid var(--zopa-border);
}

.event-item.surprise {
    background: rgba(210, 153, 34, 0.15);
    border-left: 2px solid var(--warning);
}

.event-day {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.event-text {
    flex: 1;
}

/* Cascade Panel */
.cascade-panel {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.cascade-panel .panel-header {
    padding: var(--spacing-sm) var(--spacing-lg);
}

.cascade-panel .panel-header h2 {
    font-size: 13px;
}

.cascade-content {
    height: 180px;
    overflow: hidden;
}

.cascade-content.collapsed {
    height: 0;
}

.cascade-content canvas {
    width: 100%;
    height: 100%;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 480px;
    max-width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 16px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* Modal content styles */
.modal-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.modal-stat {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.modal-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.modal-stat-value {
    font-size: 18px;
    font-weight: 600;
    font-family: var(--font-mono);
}

.modal-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.modal-outcomes {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.modal-outcomes h4 {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.outcome-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 12px;
}

.outcome-item:last-child {
    border-bottom: none;
}

.outcome-prob {
    font-family: var(--font-mono);
    color: var(--info);
}

/* Tooltip */
.tooltip {
    position: fixed;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 12px;
    color: var(--text-primary);
    max-width: 250px;
    pointer-events: none;
    z-index: 1001;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tooltip.active {
    display: block;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* Responsive adjustments */
@media (max-width: 1400px) {
    .main-container {
        grid-template-columns: 280px 1fr 300px;
    }

    .config-panel {
        width: 280px;
    }

    .actions-panel {
        width: 300px;
    }
}

@media (max-width: 1200px) {
    .main-container {
        grid-template-columns: 260px 1fr 280px;
    }

    .distribution-container {
        flex-direction: column;
    }

    .distribution-stats {
        width: 100%;
        flex-direction: row;
    }

    .stat-block {
        flex: 1;
    }
}

/* Animation keyframes */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--info); }
    50% { box-shadow: 0 0 20px var(--info), 0 0 30px var(--info); }
}

@keyframes slideIn {
    from { transform: translateX(-10px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes valueChange {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); color: var(--warning); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 1s ease-in-out infinite;
}

.shake {
    animation: shake 0.3s ease-in-out;
}

.glow {
    animation: glow 2s ease-in-out infinite;
}

/* Highlight effects */
.highlight-change {
    transition: background-color 0.3s ease;
}

.highlight-change.active {
    background-color: rgba(88, 166, 255, 0.2);
}

.value-changed {
    animation: valueChange 0.5s ease-out;
}

/* Event log animations */
.event-item {
    animation: slideIn 0.3s ease-out;
}

/* Phase indicator styles */
#current-phase {
    transition: all 0.3s ease;
}

#current-phase.phase-pleadings { background: rgba(88, 166, 255, 0.2); color: var(--plaintiff-primary); }
#current-phase.phase-discovery { background: rgba(163, 113, 247, 0.2); color: var(--settlement-color); }
#current-phase.phase-motions { background: rgba(210, 153, 34, 0.2); color: var(--warning); }
#current-phase.phase-trial { background: rgba(248, 81, 73, 0.2); color: var(--danger); }
#current-phase.phase-resolved { background: rgba(63, 185, 80, 0.2); color: var(--success); }

/* Settlement probability indicator */
#metric-settle-prob {
    font-weight: bold;
    transition: color 0.3s ease;
}

/* Cost meter danger states */
.meter-fill.danger {
    background: linear-gradient(90deg, var(--defendant-secondary), var(--danger)) !important;
}

.cost-meter.budget-critical .meter-header {
    color: var(--danger);
}

/* ZOPA indicator states */
.bargaining-metrics .metric:last-child .metric-value {
    transition: color 0.3s ease;
}

.bargaining-metrics .metric:last-child .metric-value.high-prob {
    color: var(--success);
}

.bargaining-metrics .metric:last-child .metric-value.low-prob {
    color: var(--danger);
}

/* Offer history scroll */
.offer-history {
    scroll-behavior: smooth;
}

/* Action button hover effects */
.btn-action:not(:disabled) {
    position: relative;
    overflow: hidden;
}

.btn-action:not(:disabled)::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.btn-action:not(:disabled):hover::after {
    width: 200%;
    height: 200%;
}

/* Cascade node hover */
.cascade-content canvas {
    cursor: default;
}

/* Distribution overlap indicator */
.distribution-overlap {
    position: absolute;
    bottom: 10px;
    right: 10px;
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

/* Info asymmetry visual */
.info-bar-group.has-gap .info-bar {
    box-shadow: 0 0 0 1px var(--warning);
}

/* Loading state */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top-color: var(--info);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Resolution celebration */
.resolution-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Keyboard shortcuts hint */
.keyboard-hint {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.keyboard-hint.visible {
    opacity: 1;
}

.keyboard-hint kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 10px;
    margin: 0 2px;
}

/* Mobile responsive improvements */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .config-panel,
    .actions-panel {
        width: 100%;
        max-height: 300px;
    }

    .panel-content {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .config-section {
        margin-bottom: 0;
        padding-bottom: var(--spacing-sm);
    }

    .cascade-panel {
        display: none;
    }
}

/* Print styles */
@media print {
    .header-controls,
    .actions-panel,
    .config-panel,
    .cascade-panel {
        display: none;
    }

    .visualization-area {
        padding: 0;
    }

    .viz-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ============================================
   HELP SYSTEM STYLES
   ============================================ */

/* Help Toggle Button */
.help-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--plaintiff-secondary);
    border: none;
    color: white;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 100;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.help-toggle:hover {
    transform: scale(1.1);
    background: var(--plaintiff-primary);
    box-shadow: 0 6px 20px rgba(88, 166, 255, 0.4);
}

.help-icon {
    line-height: 1;
}

/* Help Panel (Slide-out) */
.help-panel {
    position: fixed;
    top: 0;
    right: -420px;
    width: 400px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 200;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.help-panel.active {
    right: 0;
}

.help-panel-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    background: var(--bg-tertiary);
}

.help-panel-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.help-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.help-close:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.help-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.help-section {
    margin-bottom: var(--spacing-xl);
}

.help-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.help-section p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.help-section ol,
.help-section ul {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.help-section li {
    margin-bottom: var(--spacing-xs);
}

.help-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.help-item h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.help-item p {
    margin-bottom: 0;
}

.help-highlight {
    padding: 1px 6px;
    border-radius: 3px;
    font-weight: 500;
}

.help-highlight.plaintiff {
    background: var(--plaintiff-bg);
    color: var(--plaintiff-primary);
}

.help-highlight.defendant {
    background: var(--defendant-bg);
    color: var(--defendant-primary);
}

.help-highlight.zopa {
    background: var(--zopa-color);
    color: var(--zopa-border);
}

/* Onboarding Modal */
.onboarding-modal {
    z-index: 300;
}

.onboarding-content {
    width: 560px;
    max-width: 95%;
}

.onboarding-header {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
}

.onboarding-header h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.onboarding-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.onboarding-body {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.onboarding-feature {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.feature-icon {
    font-size: 28px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-text p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.onboarding-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dont-show-again {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
}

.dont-show-again input {
    cursor: pointer;
}

.onboarding-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* Tour System */
.tour-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 250;
    display: none;
    pointer-events: none;
}

.tour-overlay.active {
    display: block;
}

.tour-tooltip {
    position: fixed;
    width: 320px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    z-index: 260;
    display: none;
    animation: tourPop 0.3s ease;
}

.tour-tooltip.active {
    display: block;
}

@keyframes tourPop {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.tour-content {
    padding: var(--spacing-lg);
}

.tour-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.tour-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.tour-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tour-progress {
    font-size: 12px;
    color: var(--text-muted);
}

.tour-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.tour-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 12px;
}

/* Tour highlight */
.tour-highlight {
    position: relative;
    z-index: 255;
    box-shadow: 0 0 0 4px var(--plaintiff-primary), 0 0 0 8px rgba(88, 166, 255, 0.3);
    border-radius: var(--radius-md);
}

/* Tour arrow/pointer */
.tour-tooltip::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transform: rotate(45deg);
}

.tour-tooltip.arrow-left::before {
    left: -7px;
    top: 24px;
    border-right: none;
    border-top: none;
}

.tour-tooltip.arrow-right::before {
    right: -7px;
    top: 24px;
    border-left: none;
    border-bottom: none;
}

.tour-tooltip.arrow-top::before {
    top: -7px;
    left: 24px;
    border-bottom: none;
    border-right: none;
}

.tour-tooltip.arrow-bottom::before {
    bottom: -7px;
    left: 24px;
    border-top: none;
    border-left: none;
}

/* Context tooltips for elements */
[data-help] {
    position: relative;
}

[data-help]::after {
    content: attr(data-help);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    max-width: 250px;
    white-space: normal;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 50;
    pointer-events: none;
}

[data-help]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Mobile help adjustments */
@media (max-width: 1024px) {
    .help-panel {
        width: 100%;
        right: -100%;
    }

    .help-toggle {
        bottom: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }

    .onboarding-content {
        width: 100%;
        max-height: 90vh;
        overflow-y: auto;
    }

    .tour-tooltip {
        width: 280px;
    }
}