/**
 * Florida Civil Procedure Visualization - Styles
 * Modern, accessible, and responsive design
 */

/* CSS Variables for easy theming */
:root {
    --primary-blue: #3b82f6;
    --primary-blue-dark: #2563eb;
    --text-primary: #1a2332;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-gradient-start: #f5f7fa;
    --bg-gradient-end: #e8ecf1;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #64748b;
        --bg-primary: #1e293b;
        --bg-secondary: #0f172a;
        --bg-gradient-start: #0f172a;
        --bg-gradient-end: #1e293b;
        --border-color: #334155;
    }
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
                 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
                 sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    padding: 20px;
    min-height: 100vh;
    color: var(--text-primary);
}

/* Container */
.container {
    max-width: 1920px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    body {
        padding: 10px;
    }
}

/* Header */
.header {
    margin-bottom: 30px;
}

h1 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.2;
}

.subtitle {
    font-size: clamp(14px, 2vw, 16px);
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 15px;
    padding: 15px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-blue);
}

.stat-item {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-value {
    font-weight: 700;
    color: var(--primary-blue);
    margin-right: 4px;
}

/* Controls */
.controls {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Buttons */
button {
    padding: 10px 20px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

button:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

button:active {
    transform: translateY(0);
}

button:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

button.secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

button.secondary:hover {
    background: var(--border-color);
}

/* Filter group */
.filter-group {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.filter-group:hover {
    border-color: var(--primary-blue);
}

.filter-group label {
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

.filter-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-blue);
}

/* Phase Filters */
.phase-filters {
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.phase-filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.phase-filters-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.phase-filters-actions {
    display: flex;
    gap: 8px;
}

.phase-action-btn {
    padding: 4px 12px;
    font-size: 12px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.phase-action-btn:hover {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
    transform: none;
    box-shadow: none;
}

.phase-toggles {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.phase-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: none;
}

.phase-toggle:hover {
    border-color: var(--primary-blue);
    color: var(--text-primary);
    transform: none;
    box-shadow: var(--shadow-sm);
}

.phase-toggle.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.phase-toggle.active:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
}

.phase-toggle-icon {
    font-size: 14px;
    line-height: 1;
}

.phase-toggle-name {
    font-weight: 600;
}

.phase-toggle-count {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

.phase-toggle.active .phase-toggle-count {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive phase filters */
@media (max-width: 768px) {
    .phase-filters-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .phase-toggles {
        gap: 6px;
    }

    .phase-toggle {
        padding: 6px 10px;
        font-size: 11px;
    }

    .phase-toggle-icon {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .phase-toggle {
        flex: 1 1 calc(50% - 4px);
        justify-content: center;
    }

    .phase-toggle-name {
        display: none;
    }

    .phase-toggle-count {
        display: none;
    }
}

/* Search */
.search-container {
    position: relative;
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

#searchInput {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

#searchInput:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#searchInput::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

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

.search-result-item:hover {
    background: var(--bg-secondary);
}

.search-result-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.search-result-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Chart container */
#chart {
    width: 100%;
    height: 800px;
    cursor: grab;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    overflow: hidden;
    position: relative;
}

#chart:active {
    cursor: grabbing;
}

@media (max-width: 768px) {
    #chart {
        height: 600px;
    }
}

/* SVG elements */
.node rect {
    stroke: #334155;
    stroke-width: 2;
    transition: all var(--transition-slow);
}

.deadline-strict rect {
    stroke: #dc2626;
    stroke-width: 3;
}

.node:hover rect {
    stroke-width: 4;
    filter: brightness(0.95);
}

.node-highlight rect {
    stroke: #fbbf24 !important;
    stroke-width: 5 !important;
    filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.6));
}

.node text {
    font-size: 10px;
    font-weight: 600;
    fill: var(--text-primary);
    pointer-events: none;
}

/* Rule links should be clickable */
.node text.rule-link {
    pointer-events: auto;
    cursor: pointer;
}

.decision-diamond {
    fill: #fbbf24;
    stroke: #f59e0b;
    stroke-width: 2;
    transition: all var(--transition-slow);
}

.decision-diamond:hover {
    filter: brightness(0.95);
    stroke-width: 3;
}

.document-icon {
    fill: #60a5fa;
    stroke: #3b82f6;
    stroke-width: 1.5;
    transition: all var(--transition-slow);
}

.document-icon:hover {
    fill: #3b82f6;
}

.exception-path {
    stroke: #dc2626;
    stroke-dasharray: 5, 5;
    stroke-width: 2;
    animation: dash 20s linear infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: -100;
    }
}

.link {
    fill: none;
    stroke-opacity: 0.25;
    transition: stroke-opacity var(--transition-slow);
}

.link:hover {
    stroke-opacity: 0.7;
}

.link-highlight {
    stroke-opacity: 0.8 !important;
    stroke-width: 4 !important;
}

/* Parallel process links (Proposal for Settlement) */
.parallel-link {
    stroke-dasharray: 8, 4;
    stroke-opacity: 0.4;
}

.parallel-link:hover {
    stroke-opacity: 0.8;
}

/* Expandable node styles */
.expandable-node rect {
    cursor: pointer;
}

.expandable-node:hover rect {
    filter: brightness(1.05);
}

.expand-indicator circle {
    transition: all var(--transition-base);
}

.expand-indicator:hover circle {
    fill: #f0f9ff;
    transform: scale(1.1);
}

/* Group-specific node styling */
.group-discovery rect {
    stroke: #f59e0b;
}

.group-trialPrep rect {
    stroke: #dc2626;
}

.group-trial rect {
    stroke: #ec4899;
}

.group-postTrial rect {
    stroke: #6366f1;
}

.group-adr rect {
    stroke: #22c55e;
}

/* Additional group styling for new tracks */
.group-emergency rect {
    stroke: #be123c;
}

.group-interlocutory rect {
    stroke: #0d9488;
}

.group-thirdParty rect {
    stroke: #7e22ce;
}

.group-daubert rect {
    stroke: #b45309;
}

.group-fees rect {
    stroke: #7c3aed;
}

.group-stay rect {
    stroke: #0891b2;
}

.group-amendment rect {
    stroke: #4f46e5;
}

.group-dismissal rect {
    stroke: #64748b;
}

.group-complexity rect {
    stroke: #0f766e;
}

.group-eDiscovery rect {
    stroke: #d97706;
}

/* Tooltip */
.tooltip {
    position: absolute;
    padding: 14px 18px;
    background: rgba(15, 23, 42, 0.97);
    color: white;
    border-radius: var(--radius-md);
    font-size: 11px;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    max-width: 400px;
    line-height: 1.6;
    backdrop-filter: blur(10px);
}

.tooltip strong {
    color: #60a5fa;
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
}

.tooltip .section {
    margin: 6px 0;
    padding: 6px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.tooltip .section:first-child {
    border-top: none;
    padding-top: 0;
}

.tooltip .label {
    color: #94a3b8;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.tooltip .notes {
    background: rgba(251, 191, 36, 0.15);
    padding: 8px;
    border-radius: 4px;
    border-left: 3px solid #fbbf24;
    margin-top: 8px;
}

.tooltip .expandable-hint {
    color: #60a5fa;
    font-style: italic;
    font-size: 10px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed rgba(255, 255, 255, 0.2);
}

/* Parallel process indicator box */
.parallel-indicator rect {
    transition: all var(--transition-base);
}

.parallel-indicator:hover rect {
    fill: rgba(34, 197, 94, 0.15);
}

/* Legend */
.legend {
    margin-top: 30px;
    padding: 25px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-blue);
}

.legend-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
}

.legend-item {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-item strong {
    color: var(--text-primary);
}

.legend-icon {
    display: inline-block;
    width: 20px;
    text-align: center;
}

/* Keyboard shortcuts */
.shortcuts {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid #10b981;
}

.shortcuts strong {
    display: block;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 14px;
}

.shortcut-list {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

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

kbd {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.1);
}

/* Loading state */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    font-size: 18px;
    color: var(--text-secondary);
}

.loading::after {
    content: '...';
    animation: ellipsis 1.5s infinite;
}

@keyframes ellipsis {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Error state */
.error {
    padding: 20px;
    background: #fee;
    border: 1px solid #fcc;
    border-radius: var(--radius-md);
    color: #c00;
    margin: 20px 0;
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .container {
        box-shadow: none;
        padding: 20px;
    }

    .controls,
    .shortcuts,
    button {
        display: none;
    }

    #chart {
        height: auto;
        border: 1px solid #000;
    }

    .legend {
        page-break-inside: avoid;
    }
}

/* Animation for initial load */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Minimap */
.minimap {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 200px;
    height: 150px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    z-index: 100;
}

.minimap-viewport {
    fill: rgba(59, 130, 246, 0.2);
    stroke: var(--primary-blue);
    stroke-width: 2;
    cursor: move;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .stats {
        flex-direction: column;
        gap: 10px;
    }

    .filter-group {
        width: 100%;
        justify-content: space-between;
    }

    .shortcut-list {
        flex-direction: column;
        gap: 8px;
    }

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

/* ============================================
   COST ESTIMATOR STYLES
   ============================================ */

/* Cost Estimator Controls */
.cost-estimator-controls {
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    border-left: 4px solid #10b981;
}

.cost-estimator-header {
    margin-bottom: 12px;
}

.cost-estimator-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cost-estimator-toggles {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

/* Hourly Rate Input */
.hourly-rate-input {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.hourly-rate-input label {
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
}

.hourly-rate-input input[type="number"] {
    width: 80px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.hourly-rate-input input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Selection Mode Cursor */
#chart.selection-mode {
    cursor: crosshair;
}

#chart.selection-mode:active {
    cursor: crosshair;
}

/* Selected Node Styling */
.node-selected rect {
    stroke: #10b981 !important;
    stroke-width: 4 !important;
    filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.5));
}

/* When both selected and highlighted */
.node-selected.node-highlight rect {
    stroke: #fbbf24 !important;
}

/* Cost Estimates Sidebar */
.cost-sidebar {
    position: fixed;
    right: -320px;
    top: 100px;
    width: 300px;
    max-height: calc(100vh - 140px);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 500;
    transition: right 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.cost-sidebar.visible {
    right: 20px;
}

.cost-sidebar.collapsed {
    width: 44px;
    right: 20px;
}

.cost-sidebar.collapsed .cost-sidebar-content {
    display: none;
}

.cost-sidebar.collapsed .cost-sidebar-header {
    flex-direction: column;
    padding: 12px 8px;
    gap: 8px;
    cursor: pointer;
}

.cost-sidebar.collapsed .cost-sidebar-header h3 {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 12px;
    white-space: nowrap;
}

.cost-sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

.cost-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.cost-sidebar-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.sidebar-toggle {
    padding: 6px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 12px;
    transition: all 0.2s ease;
}

.sidebar-toggle:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
    transform: none;
    box-shadow: none;
}

.cost-sidebar-content {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.cost-summary {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.cost-summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.cost-summary-item.grand-total {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    font-weight: 600;
}

.cost-summary-item.grand-total .cost-label,
.cost-summary-item.grand-total .cost-value {
    color: white;
}

.cost-label {
    font-size: 13px;
    color: var(--text-secondary);
}

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

/* Selected Nodes List */
.selected-nodes-list {
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.selected-nodes-list h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.selected-nodes-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.selected-node-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    transition: background 0.15s ease;
}

.selected-node-item:hover {
    background: var(--border-color);
}

.selected-node-item .node-name {
    flex: 1;
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
}

.selected-node-item .node-cost {
    font-size: 12px;
    color: var(--text-secondary);
}

.selected-node-item .remove-node-btn {
    padding: 4px 8px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.selected-node-item .remove-node-btn:hover {
    background: #fee2e2;
    color: #dc2626;
    transform: none;
    box-shadow: none;
}

.no-selection {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
    padding: 20px;
    text-align: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

/* Responsive Sidebar */
@media (max-width: 768px) {
    .cost-sidebar {
        width: calc(100% - 40px);
        right: -100%;
        top: auto;
        bottom: 20px;
        max-height: 50vh;
    }

    .cost-sidebar.visible {
        right: 20px;
    }

    .cost-sidebar.collapsed {
        width: 44px;
        right: 20px;
        bottom: 20px;
    }
}

/* Dark Mode Adjustments for Cost Estimator */
@media (prefers-color-scheme: dark) {
    .cost-estimator-controls {
        border-left-color: #059669;
    }

    .node-selected rect {
        filter: drop-shadow(0 0 12px rgba(16, 185, 129, 0.7));
    }

    .selected-node-item .remove-node-btn:hover {
        background: rgba(220, 38, 38, 0.2);
    }

    .hourly-rate-input input[type="number"] {
        background: var(--bg-secondary);
    }
}