:root {
    /* Base Colors (remain constant) */
    --signal-green: #36b578;
    --signal-red: #d10304;
    --signal-yellow: #fa9f42;
    --signal-blue: #2196F3;
    --tomato-jam: #c44536;

    /* Theme-specific Colors - DARK MODE (Default) */
    --primary: #2d5090;
    --primary-light: #4069b3;
    --primary-dark: #1e3663;
    --secondary: #1e293b;
    --tertiary: #334155;
    --background: #0f172a;
    --white: #f8fafc;

    --primary-10: rgba(45, 80, 144, 0.15);
    --primary-20: rgba(45, 80, 144, 0.3);

    /* Semantic Mappings DARK */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: var(--primary-10);
    --bg-active: var(--primary-20);
    --border-light: #475569;
    --border-medium: #64748b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-inverse: #0f172a;
    --node-bg: #1e293b;

    /* Shadows DARK */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.7);

    /* Compatibility Mappings */
    --accent: var(--primary);
    --accent-hover: var(--primary-light);
    --border: var(--border-medium);
    --node-border: var(--primary);
    --success: var(--signal-green);
    --warning: var(--signal-yellow);
    --error: var(--signal-red);
    --link-color: var(--signal-blue);
    --line-color: var(--border-light);

    /* Dimensions */
    --column-width: 180px;
    --column-gap: 60px;
    --node-height: 50px;
    --node-vertical-gap: 20px;
    --sidebar-width: 320px;

    /* Node Colors */
    --node-color-1: #1121F0;
    --node-color-2: #36b578;
    --node-color-3: #F0C111;
    --node-color-4: #F01311;
    --node-color-5: #3841B0;
    --node-color-6: #3a9054;
    --node-color-7: #9B873E;
    --node-color-8: #9B3F3E;
    --node-color-9: #404370;
    --node-color-10: #334639;
    --node-color-11: #DA70D6;
    --node-color-12: #FF69B4;
    --node-color-13: #63bacb;
    --node-color-14: #F4A460;
    --node-color-15: #8B4513;
    --node-color-16: #708090;
}

body.light-mode {
    --primary: #223e6d;
    --primary-light: #2d5090;
    --primary-dark: #1a2f52;
    --secondary: #c2c7db;
    --tertiary: #a7acbf;
    --background: #eeeeee;
    --white: #ffffff;

    --primary-10: rgba(34, 62, 109, 0.1);
    --primary-20: rgba(34, 62, 109, 0.2);

    /* Semantic Mappings LIGHT */
    --bg-primary: var(--white);
    --bg-secondary: var(--background);
    --bg-tertiary: var(--secondary);
    --bg-hover: var(--primary-10);
    --bg-active: var(--primary-20);
    --border-light: var(--secondary);
    --border-medium: var(--tertiary);
    --text-primary: var(--primary-dark);
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-inverse: var(--white);
    --node-bg: var(--white);

    /* Shadows LIGHT */
    --shadow-sm: 0 1px 2px rgba(34, 62, 109, 0.08);
    --shadow-md: 0 4px 6px rgba(34, 62, 109, 0.12);
    --shadow-lg: 0 10px 15px rgba(34, 62, 109, 0.15);
    --shadow-xl: 0 20px 25px rgba(34, 62, 109, 0.18);
}

* {

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.ide-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.title-bar {
    background: var(--bg-tertiary);
    padding: 5px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.title-bar h1 {
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}



.menu-bar {
    background: var(--bg-secondary);
    padding: 2px 6px;
    display: flex;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

.menu-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 4px 10px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: background 0.2s;
}

.menu-btn:hover {
    background: var(--bg-tertiary);
}

.separator {
    width: 1px;
    background: var(--border);
    margin: 0 8px;
}

.toolbar {
    background: var(--bg-secondary);
    padding: 5px 12px;
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    align-items: center;
    flex-wrap: wrap;
}

.tool-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 5px 12px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s;
}

.tool-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

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

.tool-btn:disabled:hover {
    background: var(--bg-tertiary);
    border-color: var(--border);
    color: var(--text-primary);
}

.tool-btn.danger:hover {
    background: var(--error);
    border-color: var(--error);
}

.tool-group {
    display: flex;
    gap: 4px;
    padding: 0 8px;
    border-right: 1px solid var(--border);
    align-items: center;
}

.tool-group:last-child {
    border-right: none;
}

.tool-group label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-right: 4px;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar - Einfahrbar */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.3s ease, min-width 0.3s ease;
}

.sidebar.collapsed {
    width: 44px;
    min-width: 44px;
}

.sidebar-header {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

.sidebar-header:hover {
    background: var(--bg-secondary);
}

.sidebar-header-text {
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
}

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

.sidebar.collapsed .sidebar-header-text span:last-child {
    display: none;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    transition: opacity 0.2s ease;
}

.sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
    padding: 0;
}

.node-tree {
    list-style: none;
}

.tree-item {
    padding: 6px 8px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 2px;
    transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
    border: 2px solid transparent;
}

.tree-item:hover {
    background: var(--bg-tertiary);
}

.tree-item.selected {
    background: var(--accent);
    color: white;
}

/* Drag Handle */
.tree-drag-handle {
    cursor: grab;
    color: var(--text-secondary);
    padding: 2px 4px;
    font-size: 10px;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.tree-item:hover .tree-drag-handle {
    opacity: 1;
}

.tree-item.selected .tree-drag-handle {
    color: rgba(255, 255, 255, 0.7);
}

.tree-drag-handle:active {
    cursor: grabbing;
}

/* Drag & Drop States */
.tree-item.dragging {
    opacity: 0.5;
    transform: scale(0.98);
}

.tree-item.drag-over-above {
    border-top-color: var(--accent);
}

.tree-item.drag-over-below {
    border-bottom-color: var(--accent);
}

.tree-item.drag-over-invalid {
    background: var(--error) !important;
    opacity: 0.5;
}

.tree-item-content {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.tree-item-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.tree-children {
    margin-left: 16px;
    list-style: none;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.tree-children.collapsed {
    display: none;
}

/* Collapse Toggle Button */
.tree-collapse-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    width: 18px;
    height: 18px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: all 0.15s;
    flex-shrink: 0;
    padding: 0;
}

.tree-collapse-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tree-item.selected .tree-collapse-btn {
    color: rgba(255, 255, 255, 0.7);
}

.tree-item.selected .tree-collapse-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.tree-collapse-btn.collapsed {
    transform: rotate(-90deg);
}

.tree-collapse-placeholder {
    width: 18px;
    flex-shrink: 0;
}

/* Position Controls in Sidebar */
.tree-position-controls {
    display: flex;
    gap: 2px;
    margin-left: auto;
    flex-shrink: 0;
}

.tree-pos-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 22px;
    height: 22px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: all 0.15s;
    padding: 0;
}

.tree-pos-btn:hover:not(:disabled) {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.tree-pos-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.tree-pos-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.tree-item.selected .tree-pos-btn {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.tree-item.selected .tree-pos-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.4);
}

.tree-item.selected .tree-pos-btn:disabled {
    opacity: 0.4;
}

.tree-item.selected .tree-pos-btn.active {
    background: rgba(255, 255, 255, 0.5);
}

.position-badge {
    font-size: 9px;
    padding: 2px 5px;
    border-radius: 3px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    margin-left: 4px;
}

.tree-item.selected .position-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Children Count Badge */
.children-count {
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 8px;
    background: var(--accent);
    color: white;
    margin-left: 4px;
}

.tree-item.selected .children-count {
    background: rgba(255, 255, 255, 0.3);
}

/* Order Badge */
.order-badge {
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 3px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    margin-right: 4px;
    min-width: 16px;
    text-align: center;
}

.tree-item.selected .order-badge {
    background: rgba(0, 0, 0, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
    background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
    background-size: 20px 20px;
}

.canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: auto;
    cursor: grab;
}

.canvas.dragging {
    cursor: grabbing;
}

.canvas::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

.mindmap-container {
    position: absolute;
    min-width: 6000px;
    min-height: 4000px;
}

/* SVG-Verbindungen - niedrigerer z-index */
.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connection-path {
    fill: none;
    stroke: var(--line-color);
    stroke-linecap: round;
}

/* Knoten - höherer z-index als SVG */
.node-wrapper {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.node {
    background: var(--node-bg);
    border: 2px solid var(--node-border);
    border-radius: 8px;
    padding: 10px 16px;
    min-width: 120px;
    max-width: 300px;
    height: auto;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    word-break: break-word;
}

.node:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    z-index: 100;
}

.node.selected {
    border-color: var(--accent-hover);
    box-shadow: 0 0 15px rgba(34, 62, 109, 0.6), 0 0 0 3px rgba(34, 62, 109, 0.3);
    z-index: 101;
}

.node.root {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    font-size: 16px;
    font-weight: bold;
    min-width: 140px;
    padding: 14px 20px;
    border: none;
}

.node.has-collapsed-children {
    border-style: solid;
}

.node-content {
    word-wrap: break-word;
    white-space: normal;
}

.node-link-icon {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    text-decoration: none;
}

/* Collapse Button auf Knoten */
.node-collapse-btn {
    position: absolute;
    bottom: 2px;
    right: 2px;
    left: auto;
    transform: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 16px;
    height: 16px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    z-index: 20;
    transition: all 0.2s;
    line-height: 1;
    padding: 0;
}

.node-collapse-btn.pos-left {
    right: auto;
    left: 2px;
}

.node-collapse-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: scale(1.1);
}

.node-collapse-btn .collapse-count {
    font-size: 9px;
    font-weight: bold;
}

.level-badge {
    position: absolute;
    bottom: -16px;
    right: 10px;
    font-size: 9px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 1px 5px;
    border-radius: 3px;
    white-space: nowrap;
}



.properties-panel {
    width: 320px;
    min-width: 320px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.3s ease, min-width 0.3s ease;
}

.properties-panel.collapsed {
    width: 44px;
    min-width: 44px;
}

.properties-panel .sidebar-header {
    justify-content: space-between;
}

.properties-panel .sidebar-toggle {
    transform: rotate(180deg);
}

.properties-panel.collapsed .sidebar-toggle {
    transform: rotate(0deg);
}

.properties-panel.collapsed .sidebar-header-text span:last-child {
    display: none;
}

.properties-content {
    flex: 1;
    overflow-y: auto;
    transition: opacity 0.2s ease;
}

.properties-panel.collapsed .properties-content {
    opacity: 0;
    pointer-events: none;
}

.material-symbols-outlined {
    font-size: 18px;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
}

/* Specific icon size adjustments */
.sidebar-header .material-symbols-outlined {
    font-size: 20px;
}

.tree-item .material-symbols-outlined {
    font-size: 16px;
    margin-right: 4px;
}

.menu-btn .material-symbols-outlined {
    font-size: 18px;
}

.tool-btn .material-symbols-outlined {
    font-size: 18px;
}

.panel-section {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.panel-section h3 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 13px;
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.rtf-toolbar {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.rtf-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 28px;
    height: 28px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.rtf-btn .material-symbols-outlined {
    font-size: 16px;
}

.rtf-btn:hover {
    background: var(--accent);
    color: white;
}

.color-picker-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.color-option {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
}

.color-option:hover,
.color-option.selected {
    border-color: var(--text-primary);
}

.position-buttons {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.position-btn {
    flex: 1;
    padding: 6px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s;
}

.position-btn:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
}

.position-btn.active {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
}

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

.position-btn:disabled:hover {
    border-color: var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.order-buttons {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.order-btn {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.2s;
}

.order-btn:hover:not(:disabled) {
    border-color: var(--accent);
    background: var(--accent);
    color: white;
}

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

.status-bar {
    background: var(--accent);
    color: white;
    padding: 4px 16px;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    cursor: pointer;
    border: 1px solid var(--border);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    transition: transform 0.2s;
}

.light-mode .toggle-switch::after {
    transform: translateX(24px);
}

.zoom-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: 4px;
    border: 1px solid var(--border);
    z-index: 100;
}

.zoom-btn {
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-primary);
    width: 32px;
    height: 32px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 16px;
}

.zoom-btn:hover {
    background: var(--accent);
    color: white;
}

.zoom-level {
    padding: 0 12px;
    display: flex;
    align-items: center;
    font-size: 12px;
}

.context-menu {
    display: none;
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    min-width: 200px;
}

.context-menu.active {
    display: block;
}

.context-menu-item {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.context-menu-item:hover {
    background: var(--accent);
    color: white;
}

.context-menu-item.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.context-menu-separator {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.hidden-input {
    display: none;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.line-settings {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

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

.line-setting-item label {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Scroll-Hinweis */
.scroll-hint {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 11px;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    z-index: 50;
    opacity: 0.8;
    pointer-events: none;
}

/* Drag Ghost Styling */
.drag-ghost {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    background: var(--accent);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    width: 400px;
    max-width: 90%;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}

.modal-header h2 {
    font-size: 16px;
    margin: 0;
    color: var(--text-primary);
}

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

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

.shortcut-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid var(--border);
}

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

.shortcut-item span:last-child {
    font-size: 13px;
    color: var(--text-primary);
}

.kbd {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 11px;
    font-family: monospace;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}


/* Confirm Modal - Clean Version */
.confirm-modal {
    max-width: 400px !important;
    padding: 24px !important;
    text-align: center;
}

.confirm-modal .modal-body {
    padding: 0 0 24px 0;
}

.confirm-modal #confirmMessage {
    font-size: 15px;
    line-height: 1.5;
    color: var(--text-primary);
    margin: 0;
}

.confirm-modal .modal-footer {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.confirm-btn {
    padding: 8px 24px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    min-width: 80px;
}

.confirm-btn.primary {
    background: var(--primary);
    color: white;
}

.confirm-btn.primary:hover {
    background: var(--primary-light);
}

.confirm-btn.secondary {
    background: var(--bg-tertiary);
    border-color: var(--border);
    color: var(--text-primary);
}

.confirm-btn.secondary:hover {
    background: var(--bg-hover);
}

@media (max-width: 1024px) {

    .sidebar,
    .properties-panel {
        display: none;
    }
}

@media print {

    .title-bar,
    .menu-bar,
    .toolbar,
    .sidebar,
    .properties-panel,
    .status-bar,
    .zoom-controls {
        display: none !important;
    }

    .canvas-container {
        background: white !important;
    }

    .node {
        background: white !important;
        color: black !important;
        border-color: #333 !important;
    }

    .node.root {
        background: #333 !important;
        color: white !important;
    }

    .connection-path {
        stroke: #333 !important;
    }
}