@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

/* Theme Variables */
:root {
    --bg-primary: #f0f0f0;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f9fa;
    --bg-canvas: #c8c8c8;
    --bg-header: #2c3e50;
    --bg-hover: #e9ecef;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-tertiary: #34495e;
    --text-header: #ffffff;
    --text-header-muted: #ecf0f1;
    --border-color: #ddd;
    --border-light: #ecf0f1;
    --border-medium: #bdc3c7;
    --accent-primary: #3498db;
    --accent-primary-hover: #2980b9;
    --accent-success: #27ae60;
    --accent-success-hover: #229954;
    --accent-danger: #e74c3c;
    --accent-selection: #e91e63;
    --hover-highlight: yellow;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #bdc3c7;
    --scrollbar-thumb-hover: #95a5a6;
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #242424;
    --bg-canvas: #1e1e1e;
    --bg-header: #000000;
    --bg-hover: #3d3d3d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #b0b0b0;
    --text-header: #e0e0e0;
    --text-header-muted: #a0a0a0;
    --border-color: #404040;
    --border-light: #333333;
    --border-medium: #505050;
    --accent-primary: #5dade2;
    --accent-primary-hover: #3498db;
    --accent-success: #58d68d;
    --accent-success-hover: #27ae60;
    --accent-danger: #e74c3c;
    --accent-selection: #e91e63;
    --hover-highlight: #5dade2;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --scrollbar-track: #2d2d2d;
    --scrollbar-thumb: #505050;
    --scrollbar-thumb-hover: #606060;
}

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

body {
    font-family: 'Poppins', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    overflow: hidden;
    transition: background-color 0.3s ease;
}

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

header {
    background-color: var(--bg-header);
    color: var(--text-header);
    padding: 15px 20px;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

header h1 {
    font-size: 24px;
    margin-bottom: 0;
    font-family: 'Poppins', sans-serif;
}

.project-name-display {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 16px;
    font-weight: 300;
    color: var(--text-header-muted);
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

header p {
    font-size: 14px;
    color: var(--text-header-muted);
}

/* Auth container in header */
.auth-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-btn {
    background-color: var(--accent-success);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.auth-btn:hover {
    background-color: var(--accent-success-hover);
}

.auth-btn-secondary {
    background-color: transparent;
    color: white;
    border: 1px solid white;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 400;
    transition: all 0.2s;
}

.auth-btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid var(--text-header-muted);
    border-radius: 50%;
    background-color: transparent;
    color: var(--text-header);
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--text-header);
}

.theme-toggle-btn svg {
    width: 18px;
    height: 18px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-email {
    font-size: 14px;
    color: var(--text-header-muted);
    font-weight: 400;
}

/* User Dropdown Menu */
.user-dropdown-container {
    position: relative;
}

.user-email-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-email-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.user-email-btn .dropdown-chevron {
    transition: transform 0.2s ease;
    color: var(--text-header-muted);
}

.user-email-btn.active .dropdown-chevron {
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 160px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.user-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: background-color 0.2s ease;
    border-radius: 6px;
}

.user-dropdown-item:hover {
    background-color: var(--bg-hover);
}

.user-dropdown-item svg {
    color: var(--text-secondary);
}

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

.sidebar {
    width: 250px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.sidebar-header {
    padding: 12px 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tools-text {
    border: 1px solid white;
    padding: 4px 8px;
    display: inline-block;
}

.sidebar-collapse-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    width: 24px;
    height: 24px;
}

.sidebar-collapse-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.sidebar-collapse-btn svg {
    transition: transform 0.3s ease;
}

.sidebar.collapsed {
    width: 48px;
    min-width: 48px;
}

.sidebar.collapsed .sidebar-header {
    padding: 12px 8px;
    justify-content: center;
}

.sidebar.collapsed .sidebar-header span:not(.sidebar-collapse-btn svg) {
    display: none;
}

.sidebar.collapsed .sidebar-collapse-btn {
    margin: 0;
}

.sidebar.collapsed .sidebar-collapse-btn svg {
    transform: rotate(180deg);
}

.sidebar.collapsed .collapsible-section,
.sidebar.collapsed .info-section,
.sidebar.collapsed .server-status,
.sidebar.collapsed .version-display,
.sidebar.collapsed .attribution-link {
    display: none;
}

/* Collapsed Navigation */
.collapsed-nav {
    display: none;
    flex-direction: column;
    align-items: center;
    padding: 8px 4px;
    gap: 4px;
}

.sidebar.collapsed .collapsed-nav {
    display: flex;
}

.collapsed-nav-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    transition: all 0.2s ease;
    position: relative;
}

.collapsed-nav-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

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

.collapsed-nav-btn svg {
    width: 20px;
    height: 20px;
}

/* Collapsed Popup Menus */
.collapsed-popup {
    display: none;
    position: fixed;
    left: 56px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 200px;
    max-width: 280px;
    z-index: 1000;
    overflow: hidden;
}

.collapsed-popup.active {
    display: block;
}

.collapsed-popup-header {
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.collapsed-popup-content {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 400px;
    overflow-y: auto;
}

.collapsed-popup-content label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: background-color 0.2s ease;
}

.collapsed-popup-content label:hover {
    background: var(--bg-hover);
}

.collapsed-popup-content .action-btn,
.collapsed-popup-content .tool-btn {
    width: 100%;
    justify-content: flex-start;
    text-align: left;
    padding: 8px 10px;
    gap: 8px;
}

.popup-group-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: 8px 10px 4px 10px;
    margin-top: 4px;
}

.popup-group-title:first-child {
    margin-top: 0;
}

/* Right Sidebar Collapsed Popup - Position to the left */
.collapsed-popup-right {
    left: auto;
    right: 56px;
}

.popup-layers-toolbar {
    display: flex;
    gap: 4px;
    padding: 4px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.popup-layers-toolbar .layers-toolbar-btn {
    width: 32px;
    height: 32px;
}

.popup-info-text {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    padding: 8px;
    font-style: italic;
}

.popup-style-btn {
    display: flex;
    align-items: center;
    gap: 8px;
}

.popup-style-btn svg {
    flex-shrink: 0;
}

.collapsible-section {
    border-bottom: 1px solid var(--border-color);
}

.collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 20px;
    background-color: var(--bg-tertiary);
    cursor: pointer;
    user-select: none;
    font-weight: normal;
    font-size: 14px;
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.collapsible-header:hover {
    background-color: var(--bg-hover);
}

.collapsible-header .header-label {
    display: flex;
    align-items: center;
    gap: 8px;
}

.collapsible-header .header-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.collapsible-header .chevron {
    transition: transform 0.3s ease;
    font-size: 12px;
}

.collapsible-section.collapsed .chevron {
    transform: rotate(-90deg);
}

.collapsible-content {
    max-height: 500px;
    overflow-y: auto;
    transition: max-height 0.3s ease, background-color 0.3s ease;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background-color: var(--bg-secondary);
}

.collapsible-section.collapsed .collapsible-content {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
}

.tool-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-light);
}

.tool-group:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.tool-group h3 {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 5px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
}

.tool-btn, .action-btn, .file-btn {
    padding: 5.76px 15px;
    border: 1px solid var(--border-medium);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 4px;
    font-size: 12.6px;
    transition: all 0.2s;
    text-align: center;
}

.tool-btn:hover, .action-btn:hover, .file-btn:hover {
    background-color: var(--hover-highlight);
    color: var(--text-primary);
}

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

/* Specific button styling - White background, black border, black text */
#zoomInBtn,
#zoomOutBtn,
.file-btn {
    background-color: white;
    color: black;
    border: 1px solid black;
}

#zoomInBtn:hover,
#zoomOutBtn:hover,
.file-btn:hover {
    background-color: yellow;
}

input[type="text"], input[type="number"] {
    padding: 6px 10px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    font-size: 14px;
    width: 100%;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

input[type="text"]:focus, input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
}

label {
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 500;
}

label[for="gridToggle"] {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

label[for="gridToggle"] input[type="checkbox"] {
    width: auto;
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-canvas);
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease;
}

.canvas-toolbar {
    display: flex;
    gap: 10px;
    padding: 10px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    z-index: 10;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.toolbar-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--border-medium);
    background-color: var(--bg-secondary);
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.2s;
    color: var(--text-primary);
}

.toolbar-btn:hover {
    background-color: var(--hover-highlight);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

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

/* Select, Pan and Info button active state */
#selectionToolBtn.active,
#panToolBtn.active,
#infoToolBtn.active {
    background-color: var(--accent-primary);
    color: white;
    border-color: white;
}

.toolbar-btn .btn-icon {
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.toolbar-btn .btn-icon svg {
    width: 16px;
    height: 16px;
}

#drawingCanvas {
    display: block;
    flex: 1;
    cursor: crosshair;
    background-color: var(--bg-canvas);
}

#drawingCanvas.selection-mode {
    cursor: default;
}

#coordsDisplay, #statusDisplay {
    font-size: 12px;
    padding: 5px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    transition: background-color 0.3s ease, color 0.3s ease;
}

#statusDisplay {
    color: var(--accent-success);
    font-weight: bold;
}

/* Cursor coordinate tooltip */
.cursor-coords {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    background-color: rgba(44, 62, 80, 0.95);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-family: 'Courier New', monospace;
    white-space: pre-line;
    z-index: 50;
    display: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.4;
}

.cursor-coords.visible {
    display: block;
}

[data-theme="dark"] .cursor-coords {
    background-color: rgba(255, 255, 255, 0.95);
    color: #1a1a1a;
}

/* Scrollbar styling for sidebar */
.sidebar::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

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

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Info Section at bottom of left sidebar */
.info-section {
    margin-top: auto;
    padding: 15px 20px;
    border-top: 1px solid var(--accent-success);
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: sticky;
    bottom: 0;
    background-color: var(--bg-secondary);
    z-index: 1;
}

/* Server Status */
.server-status {
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    position: sticky;
    bottom: 0;
    background-color: var(--bg-secondary);
    z-index: 1;
}

.server-status .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-secondary);
}

.server-status.connected .status-dot {
    background-color: var(--accent-success);
}

.server-status.disconnected .status-dot {
    background-color: var(--accent-danger);
}

.server-status .status-text {
    color: var(--text-secondary);
}

.server-status.connected .status-text {
    color: var(--accent-success);
}

.server-status.disconnected .status-text {
    color: var(--accent-danger);
}

.version-display {
    font-family: 'Poppins', sans-serif;
    font-size: 8px;
    font-weight: 100;
    color: #5dade2;
    padding: 5px 20px;
}

/* Attribution Link */
.attribution-link {
    margin-top: auto;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
}

.attribution-link a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s;
}

.attribution-link a:hover {
    color: var(--accent-primary-hover);
    text-decoration: underline;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 20px var(--shadow-color);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    border-radius: 8px 8px 0 0;
    position: relative;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
}

.close-modal {
    font-size: 28px;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

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

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    font-weight: bold;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    padding: 5px 10px;
    transition: color 0.2s;
}

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

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
    background-color: var(--bg-secondary);
}

.modal-body p {
    margin-bottom: 15px;
    color: var(--text-tertiary);
}

.modal-body input[type="file"] {
    display: block;
    margin-bottom: 15px;
    padding: 10px;
    border: 2px dashed var(--border-medium);
    border-radius: 4px;
    width: 100%;
    cursor: pointer;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body input[type="file"]:hover {
    border-color: var(--accent-primary);
}

/* Legal Description Sections */
.legal-section {
    margin-bottom: 15px;
}

.legal-section label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.legal-section textarea {
    width: 100%;
    min-height: 80px;
    padding: 8px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    font-family: inherit;
    resize: vertical;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.legal-section textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.paste-instructions {
    background-color: var(--bg-tertiary);
    border-left: 4px solid var(--accent-primary);
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.paste-instructions p {
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.paste-instructions p:last-child {
    margin-bottom: 0;
    font-family: 'Courier New', monospace;
    color: var(--text-secondary);
}

#pasteDataTextarea {
    width: 100%;
    min-height: 300px;
    padding: 12px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    resize: vertical;
    line-height: 1.5;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

#pasteDataTextarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

#pasteDataTextarea::placeholder {
    color: var(--text-secondary);
    font-size: 12px;
}

#legalDescriptionTextarea {
    width: 100%;
    min-height: 400px;
    padding: 12px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    resize: vertical;
    line-height: 1.5;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

#legalDescriptionTextarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.csv-preview {
    margin-top: 15px;
    max-height: 300px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 12px;
}

.csv-preview:empty {
    display: none;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    border-radius: 0 0 8px 8px;
}

.modal-footer button {
    min-width: 100px;
}

.delete-layers-confirm-btn {
    background-color: #dc2626;
    color: white;
    border-color: #dc2626;
}

.delete-layers-confirm-btn:hover:not(:disabled) {
    background-color: #b91c1c;
    border-color: #b91c1c;
}

.delete-layers-confirm-btn:disabled {
    background-color: #e5e5e5;
    color: #a3a3a3;
    border-color: #d4d4d4;
    cursor: not-allowed;
}

.full-width {
    width: 100%;
}

@keyframes flashRed {
    0% {
        background-color: red;
    }
    100% {
        background-color: white;
    }
}

#deleteToolBtn.flash {
    animation: flashRed 0.5s ease;
}

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

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Info Popover */
.info-popover {
    position: absolute;
    top: 70px;
    right: 20px;
    width: 300px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 100;
    display: none;
}

.info-popover.show {
    display: block;
    animation: slideIn 0.3s ease;
}

.info-popover-content {
    padding: 0;
}

.info-popover-header {
    background-color: var(--accent-primary);
    color: white;
    padding: 12px 15px;
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px 8px 0 0;
}

.info-popover-body {
    padding: 15px;
    font-size: 13px;
    color: var(--text-primary);
    max-height: 300px;
    overflow-y: auto;
    background-color: var(--bg-secondary);
}

.info-popover-body p {
    margin: 8px 0;
    line-height: 1.5;
}

.info-popover-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.info-popover-resize-handle {
    height: 8px;
    background: linear-gradient(to bottom, transparent 0%, var(--border-color) 50%, transparent 100%);
    cursor: ns-resize;
    border-radius: 0 0 8px 8px;
    position: relative;
}

.info-popover-resize-handle::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 3px;
    background-color: var(--text-secondary);
    border-radius: 2px;
    opacity: 0.5;
}

.info-popover-resize-handle:hover::before {
    opacity: 0.8;
}

/* Responsive design */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
        padding: 15px;
    }

    .tool-btn, .action-btn, .file-btn {
        padding: 6px 12px;
        font-size: 13px;
    }

    header h1 {
        font-size: 20px;
    }

    header p {
        font-size: 12px;
    }

    .modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .modal-header, .modal-body, .modal-footer {
        padding: 15px;
    }

    .info-popover {
        top: 60px;
        right: 10px;
        width: 250px;
    }
}

/* Project Selector Modal Styling */
.project-selector-section {
    margin-bottom: 20px;
}

.project-selector-section h3 {
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

#projectSelectCombo {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
}

#projectSearchInput {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
}


/* Line Crossing Help Panel */
.line-crossing-help {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 320px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 999;
    animation: slideInFromRight 0.3s ease;
    border: 2px solid var(--accent-primary);
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: var(--accent-primary);
    color: white;
    border-radius: 8px 8px 0 0;
    font-weight: 600;
    font-size: 14px;
}

.help-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.help-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.help-body {
    padding: 16px;
}

.help-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    padding: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background-color: var(--accent-primary);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 12px;
    flex-shrink: 0;
}

.step-text {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.5;
}

.step-text strong {
    color: var(--accent-primary);
}

.help-note {
    margin-top: 12px;
    padding: 10px;
    background-color: #fff9e6;
    border-left: 3px solid #ffc107;
    border-radius: 4px;
    font-size: 12px;
    color: #856404;
    line-height: 1.4;
}

/* Projection Selector Styles */
.projection-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    font-size: 14px;
    margin-top: 5px;
    font-family: inherit;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.projection-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.projection-select:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.projection-preview {
    margin-top: 15px;
    padding: 12px;
    background-color: var(--bg-hover);
    border-left: 4px solid var(--accent-primary);
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.6;
}

.projection-preview strong {
    color: var(--text-primary);
}

.form-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 5px 0 10px 0;
    font-weight: normal;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-tertiary);
}

.form-control {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #bdc3c7;
    border-radius: 4px;
    font-size: 13px;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.projection-display {
    font-size: 11px;
    padding: 6px 8px;
    background-color: var(--bg-hover);
    border-radius: 4px;
    color: var(--accent-primary);
    margin-top: 8px;
    border-left: 3px solid var(--accent-primary);
}

/* Layers Palette Styles */
.layers-loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 10px;
    gap: 8px;
}

.layers-loading-spinner span {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

.layers-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.layers-empty-state {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    padding: 20px 10px;
    font-style: italic;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.2s;
}

.layer-drag-grip {
    cursor: grab;
    color: white;
    padding: 2px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.layer-drag-grip:hover {
    color: white;
}

.layer-drag-grip svg {
    width: 14px;
    height: 14px;
}

.layer-item.dragging {
    opacity: 0.5;
    background-color: var(--bg-hover);
}

.layer-item.drag-over {
    border-top: 2px solid #3498db;
    margin-top: -1px;
}

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

.layer-item.layer-selected .layer-drag-grip:hover {
    color: white;
}

.layer-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.layer-item.layer-selected {
    background-color: #3498db;
    border-color: #2980b9;
    color: white;
}

.layer-item.layer-selected .layer-name {
    color: white;
}

.layer-item.layer-selected .layer-linetype {
    color: rgba(255, 255, 255, 0.8);
}

.layer-item.layer-selected .layer-visibility-toggle svg,
.layer-item.layer-selected .layer-frozen-toggle svg,
.layer-item.layer-selected .layer-style-btn svg {
    color: white;
}

.layer-item.layer-selected:hover {
    background-color: #2980b9;
}

.layer-checkbox {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
    flex-shrink: 0;
}

.layer-color-swatch {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.layer-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 500;
}

.layer-linetype {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.layer-frozen {
    opacity: 0.5;
}

.layer-frozen .layer-name {
    color: var(--text-secondary);
}

/* Frozen toggle (snowflake icon) */
.layer-frozen-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.layer-frozen-toggle:hover {
    background-color: var(--bg-hover);
}

.layer-frozen-toggle svg {
    width: 12px;
    height: 12px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.layer-frozen-toggle.frozen svg {
    color: #3498db;
}

.layer-visibility-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.layer-visibility-toggle:hover {
    background-color: var(--bg-hover);
}

.layer-visibility-toggle svg {
    width: 14px;
    height: 14px;
    color: var(--text-primary);
}

.layer-item.layer-hidden {
    opacity: 0.5;
}

.layer-item.layer-hidden .layer-name {
    color: var(--text-secondary);
}

.layer-item.layer-hidden .layer-visibility-toggle svg {
    color: var(--text-secondary);
}

/* Layer Style Button */
.layer-style-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    margin-left: auto;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.layer-style-btn:hover {
    background-color: var(--bg-hover);
}

.layer-style-btn svg {
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
}

.layer-style-btn:hover svg {
    color: var(--accent-primary);
}

/* Layer Style Popover */
.layer-style-popover {
    position: fixed;
    z-index: 10000;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 266px;
    font-size: 12px;
}

.layer-style-popover-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: 6px 6px 0 0;
}

.layer-style-popover-title {
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 160px;
}

.layer-style-popover-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: var(--text-secondary);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.layer-style-popover-close:hover {
    background-color: var(--bg-hover);
    color: var(--accent-danger);
}

.layer-style-popover-content {
    padding: 8px 0;
}

.layer-style-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
}

.layer-style-row:hover {
    background-color: var(--bg-tertiary);
}

.layer-style-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.layer-style-value {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.layer-style-color-preview {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    display: inline-block;
}

/* Color Picker in Layer Style Popover */
.layer-color-row {
    cursor: pointer;
}

.layer-color-row:hover {
    background-color: var(--bg-hover);
}

.layer-color-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
}

.color-edit-hint {
    font-size: 10px;
    color: var(--text-secondary);
    margin-left: 4px;
}

.color-edit-hint {
    color: var(--accent-primary);
}

.color-picker-grid {
    display: none;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.color-picker-grid.visible {
    display: grid;
}

.color-swatch {
    width: 18px;
    height: 18px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.color-swatch:hover {
    transform: scale(1.25);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    z-index: 1;
    position: relative;
}

.color-swatch.selected {
    border: 2px solid var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-secondary) inset;
}

/* Linetype Picker in Layer Style Popover */
.layer-linetype-row {
    cursor: pointer;
}

.layer-linetype-row:hover {
    background-color: var(--bg-hover);
}

.layer-linetype-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
}

.linetype-edit-hint {
    font-size: 10px;
    color: var(--accent-primary);
    margin-left: 4px;
}

.linetype-picker-list {
    display: none;
    flex-direction: column;
    padding: 4px 0;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    max-height: 200px;
    overflow-y: auto;
}

.linetype-picker-list.visible {
    display: flex;
}

.linetype-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    cursor: pointer;
    transition: background-color 0.1s;
}

.linetype-item:hover {
    background-color: var(--bg-hover);
}

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

.linetype-item.selected .linetype-pattern {
    color: rgba(255, 255, 255, 0.8);
}

.linetype-name {
    font-size: 11px;
    font-weight: 500;
    min-width: 90px;
    color: var(--text-primary);
}

.linetype-pattern {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: monospace;
    letter-spacing: 1px;
}

/* Lineweight Picker in Layer Style Popover */
.layer-lineweight-row {
    cursor: pointer;
}

.layer-lineweight-row:hover {
    background-color: var(--bg-hover);
}

.layer-lineweight-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
}

.lineweight-edit-hint {
    font-size: 10px;
    color: var(--accent-primary);
    margin-left: 4px;
}

.lineweight-picker-list {
    display: none;
    flex-direction: column;
    padding: 4px 0;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    max-height: 200px;
    overflow-y: auto;
}

.lineweight-picker-list.visible {
    display: flex;
}

.lineweight-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    cursor: pointer;
    transition: background-color 0.1s;
}

.lineweight-item:hover {
    background-color: var(--bg-hover);
}

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

.lineweight-item.selected .lineweight-preview {
    background-color: rgba(255, 255, 255, 0.8);
}

.lineweight-name {
    font-size: 11px;
    font-weight: 500;
    min-width: 70px;
    color: var(--text-primary);
}

.lineweight-preview {
    flex: 1;
    max-width: 80px;
    background-color: var(--text-primary);
    border-radius: 1px;
}

/* Frozen Toggle in Layer Style Popover */
.layer-frozen-row {
    cursor: pointer;
}

.layer-frozen-row:hover {
    background-color: var(--bg-hover);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: 0.2s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    transition: 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(16px);
    background-color: white;
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 2px rgba(93, 173, 226, 0.3);
}

/* Plot Style Picker in Layer Style Popover */
.layer-plotstyle-row {
    cursor: pointer;
}

.layer-plotstyle-row:hover {
    background-color: var(--bg-hover);
}

.layer-plotstyle-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
}

.plotstyle-edit-hint {
    font-size: 10px;
    color: var(--accent-primary);
    margin-left: 4px;
}

.plotstyle-picker-list {
    display: none;
    flex-direction: column;
    padding: 4px 0;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    max-height: 200px;
    overflow-y: auto;
}

.plotstyle-picker-list.visible {
    display: flex;
}

.plotstyle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    cursor: pointer;
    transition: background-color 0.1s;
}

.plotstyle-item:hover {
    background-color: var(--bg-hover);
}

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

.plotstyle-item.selected .plotstyle-desc {
    color: rgba(255, 255, 255, 0.8);
}

.plotstyle-name {
    font-size: 11px;
    font-weight: 500;
    min-width: 90px;
    color: var(--text-primary);
}

.plotstyle-desc {
    font-size: 10px;
    color: var(--text-secondary);
}

/* Transparency Controls in Layer Style Popover */
.layer-transparency-row {
    padding: 8px 12px;
    gap: 12px;
}

.layer-transparency-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.transparency-slider {
    width: 80px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.transparency-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.1s;
}

.transparency-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.transparency-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--accent-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.transparency-input {
    width: 45px;
    padding: 3px 6px;
    font-size: 11px;
    text-align: right;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-primary);
    outline: none;
}

.transparency-input:focus {
    border-color: var(--accent-primary);
}

.transparency-input::-webkit-inner-spin-button,
.transparency-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.transparency-input[type=number] {
    -moz-appearance: textfield;
}

.transparency-percent {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Layers Toolbar */
.layers-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
}

.layers-toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}

.layers-toolbar-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.layers-toolbar-checkbox {
    width: 14px;
    height: 14px;
    margin: 0 0 0 2px;
    cursor: pointer;
}

.layers-toolbar-btn svg {
    width: 16px;
    height: 16px;
}

.layers-toolbar-btn.all-hidden {
    color: var(--text-secondary);
    opacity: 0.6;
}

.layers-toolbar-btn.all-frozen {
    color: var(--accent-primary);
}

.layers-toolbar-spacer {
    flex: 1;
}

.layers-toolbar-btn-danger:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* Right sidebar specific styling */
.sidebar-right {
    width: 275px;
    min-width: 200px;
    max-width: 400px;
    border-right: none;
    border-left: 1px solid var(--border-color);
    position: relative;
}

.sidebar-resize-handle {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: ew-resize;
    background: transparent;
    z-index: 10;
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.resizing {
    background: #3498db;
}

/* ================================
   STYLES PALETTE TABS
   ================================ */

.styles-tabs {
    display: flex;
    gap: 2px;
    padding: 8px 8px 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.styles-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    position: relative;
}

.styles-tab:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.styles-tab.active {
    background-color: var(--bg-primary);
    color: var(--accent-color);
    border-color: var(--border-color);
    z-index: 1;
}

[data-theme="dark"] .styles-tab.active {
    color: #b0b0b0;
}

.styles-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--bg-primary);
}

.styles-tab svg {
    width: 16px;
    height: 16px;
}

/* Native tooltip styling enhancement */
.styles-tab[title] {
    position: relative;
}

.styles-tab-content {
    background-color: var(--bg-primary);
}

.styles-panel {
    display: none;
}

.styles-panel.active {
    display: block;
}

.styles-panel .tool-group {
    margin: 0;
    padding: 4px 0;
}

/* ================================
   TEXT STYLES PALETTE
   ================================ */

/* Text Style List Items */
.text-style-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    margin: 4px 6px;
    font-size: 12px;
    transition: all 0.2s;
    cursor: pointer;
}

.text-style-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.text-style-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 500;
}

.text-style-font {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Text Style Settings Button */
.text-style-settings-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    margin-left: auto;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.text-style-settings-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.text-style-settings-btn svg {
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
}

.text-style-settings-btn:hover svg {
    color: var(--accent-primary);
}

/* ================================
   TEXT STYLE SETTINGS POPOVER
   ================================ */

.text-style-popover {
    position: fixed;
    z-index: 10000;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 300px;
    font-size: 12px;
}

.text-style-popover-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: 6px 6px 0 0;
}

.text-style-popover-title {
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.text-style-popover-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: var(--text-secondary);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.text-style-popover-close:hover {
    background-color: var(--bg-hover);
    color: var(--accent-danger);
}

.text-style-popover-content {
    padding: 8px 0;
}

/* Section headers in popover */
.text-style-popover-section {
    padding: 8px 12px 4px 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-light);
    margin-top: 4px;
}

.text-style-popover-section:first-child {
    border-top: none;
    margin-top: 0;
}

/* Style property rows (editable) */
.text-style-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
}

.text-style-row:hover {
    background-color: var(--bg-tertiary);
}

.text-style-label {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 90px;
}

.text-style-value {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: flex-end;
}

/* Editable inputs in popover */
.text-style-select {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    min-width: 120px;
    cursor: pointer;
}

.text-style-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.text-style-input {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    width: 70px;
    text-align: right;
}

.text-style-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.text-style-input::-webkit-inner-spin-button,
.text-style-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.text-style-input[type=number] {
    -moz-appearance: textfield;
}

.text-style-unit {
    font-size: 10px;
    color: var(--text-secondary);
}

/* =============================================
   LEADER STYLES PALETTE
   ============================================= */

/* Leader Style Item */
.leader-style-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    margin: 4px 6px;
    font-size: 12px;
    transition: all 0.2s;
    cursor: pointer;
}

.leader-style-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.leader-style-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 500;
}

.leader-style-arrow {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Leader Style Settings Button */
.leader-style-settings-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    margin-left: auto;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.leader-style-settings-btn svg {
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
}

.leader-style-settings-btn:hover {
    background-color: var(--bg-hover);
}

.leader-style-settings-btn:hover svg {
    color: var(--accent-primary);
}

/* Leader Style Popover */
.leader-style-popover {
    position: fixed;
    z-index: 10000;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 320px;
    font-size: 12px;
}

.leader-style-popover-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: 6px 6px 0 0;
}

.leader-style-popover-title {
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.leader-style-popover-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: var(--text-secondary);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.leader-style-popover-close:hover {
    background-color: var(--bg-hover);
    color: var(--accent-danger);
}

.leader-style-popover-content {
    padding: 8px 0;
}

.leader-style-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
}

.leader-style-row:hover {
    background-color: var(--bg-tertiary);
}

.leader-style-label {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 110px;
}

.leader-style-value {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: flex-end;
}

.leader-style-select {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    min-width: 100px;
    cursor: pointer;
}

.leader-style-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.leader-style-input {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    width: 70px;
    text-align: right;
}

.leader-style-input-wide {
    width: 100px;
}

.leader-style-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.leader-style-input::-webkit-inner-spin-button,
.leader-style-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.leader-style-input[type=number] {
    -moz-appearance: textfield;
}

.leader-style-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* =============================================
   POLYGON STYLES PALETTE
   ============================================= */

/* Polygon Styles Toolbar */
.polygon-styles-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
}

/* Polygon Styles List */
.polygon-styles-list {
    max-height: 300px;
    overflow-y: auto;
}

/* Polygon Style Item */
.polygon-style-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    margin: 4px 6px;
    font-size: 12px;
    transition: all 0.2s;
    cursor: pointer;
}

.polygon-style-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.polygon-style-item.active {
    border-color: var(--accent-primary);
    background-color: rgba(52, 152, 219, 0.1);
}

/* Polygon Style Preview Swatch */
.polygon-style-preview {
    width: 28px;
    height: 20px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.polygon-style-preview-fill {
    position: absolute;
    inset: 0;
}

.polygon-style-preview-stroke {
    position: absolute;
    inset: 0;
    border-radius: 2px;
    pointer-events: none;
}

.polygon-style-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 500;
}

.polygon-style-swatch {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    flex-shrink: 0;
    box-sizing: border-box;
}

.polygon-style-default-badge {
    font-size: 9px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 2px 5px;
    border-radius: 3px;
    text-transform: uppercase;
    font-weight: 600;
}

.polygon-style-item.default {
    background-color: rgba(52, 152, 219, 0.05);
}

.polygon-style-pattern {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Polygon Style Settings Button */
.polygon-style-settings-btn {
    width: 20px;
    height: 20px;
    padding: 2px;
    margin-left: auto;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.polygon-style-settings-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.polygon-style-settings-btn svg {
    width: 14px;
    height: 14px;
    color: var(--text-secondary);
}

.polygon-style-settings-btn:hover svg {
    color: var(--accent-primary);
}

/* Polygon Style Popover */
.polygon-style-popover {
    position: fixed;
    z-index: 10000;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 320px;
    font-size: 12px;
}

.polygon-style-popover-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
    border-radius: 6px 6px 0 0;
}

.polygon-style-popover-title {
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.polygon-style-popover-close {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    color: var(--text-secondary);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
}

.polygon-style-popover-close:hover {
    background-color: var(--bg-hover);
    color: var(--accent-danger);
}

.polygon-style-popover-content {
    padding: 8px 0;
}

.polygon-style-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
}

.polygon-style-row:hover {
    background-color: var(--bg-tertiary);
}

.polygon-style-label {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 110px;
}

.polygon-style-value {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: flex-end;
}

.polygon-style-bylayer {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 11px;
}

.polygon-style-select {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    min-width: 100px;
    cursor: pointer;
}

.polygon-style-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.polygon-style-input {
    padding: 4px 8px;
    font-size: 11px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    width: 70px;
    text-align: right;
}

.polygon-style-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.polygon-style-input::-webkit-inner-spin-button,
.polygon-style-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.polygon-style-input[type=number] {
    -moz-appearance: textfield;
}

/* Polygon Style Color Picker (Legacy) */
.polygon-style-color-picker {
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.polygon-style-color-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.polygon-style-color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

/* Polygon Fill Color Trigger and Swatch Grid */
.polygon-fill-color-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.polygon-fill-color-trigger:hover {
    background-color: var(--bg-hover);
}

.polygon-fill-color-preview {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    display: inline-block;
}

.polygon-fill-color-trigger span {
    font-size: 11px;
    color: var(--text-primary);
}

.polygon-fill-color-grid {
    display: none;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    max-height: 200px;
    overflow-y: auto;
}

.polygon-fill-color-grid.visible {
    display: grid;
}

.polygon-fill-color-grid .color-swatch {
    width: 18px;
    height: 18px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.polygon-fill-color-grid .color-swatch:hover {
    transform: scale(1.25);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    z-index: 1;
    position: relative;
}

.polygon-fill-color-grid .color-swatch.selected {
    border: 2px solid var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-secondary) inset;
}

/* Polygon Style Opacity Slider */
.polygon-style-opacity-slider {
    width: 80px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: 2px;
    cursor: pointer;
}

.polygon-style-opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

.polygon-style-opacity-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.polygon-style-opacity-value {
    width: 40px;
    text-align: right;
    font-size: 11px;
    color: var(--text-secondary);
}

/* Pattern Preview in Popover */
.polygon-style-pattern-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 8px 12px;
}

.polygon-style-pattern-option {
    width: 100%;
    aspect-ratio: 1.5;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.polygon-style-pattern-option:hover {
    border-color: var(--accent-primary);
}

.polygon-style-pattern-option.selected {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.3);
}

.polygon-style-pattern-label {
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.8);
    padding: 1px 4px;
    border-radius: 2px;
}

/* Section Divider in Popover */
.polygon-style-section {
    padding: 8px 12px 4px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-top: 1px solid var(--border-light);
    margin-top: 4px;
}

/* =============================================
   LEGAL DESCRIPTION TEMPLATE SYSTEM STYLES
   ============================================= */

/* Template Manager Section */
.template-manager-section {
    margin-bottom: 20px;
}

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

.template-list-header h3 {
    margin: 0;
    font-size: 14px;
    color: var(--text-primary);
}

/* Template List */
.template-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-tertiary);
}

.template-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light, #eee);
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.template-item:hover {
    background-color: var(--bg-hover, #f5f5f5);
}

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

.template-item-name {
    font-weight: 500;
    flex: 1;
}

.template-item-default {
    font-size: 10px;
    padding: 2px 6px;
    background-color: var(--accent-success, #27ae60);
    color: white;
    border-radius: 3px;
    margin-left: 8px;
}

.template-item.selected .template-item-default {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Template Editor Section */
.template-editor-section {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: 20px;
}

.template-section-group {
    margin-bottom: 16px;
}

.template-section-group > label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    color: var(--text-primary);
}

.template-textarea {
    width: 100%;
    padding: 8px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    resize: vertical;
    min-height: 60px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.template-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.template-help {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
    font-style: italic;
}

/* Template Selector in Configure Modal */
.template-select-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.template-select-row select {
    flex: 1;
}

.template-gear-btn {
    padding: 6px 8px !important;
    min-width: auto !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

.template-gear-btn svg {
    display: block;
}

/* Empty State */
.template-empty-state {
    padding: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

/* Checkbox Label */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

/* Dark theme adjustments */
[data-theme="dark"] .template-list {
    background-color: var(--bg-tertiary);
}

[data-theme="dark"] .template-item:hover {
    background-color: var(--bg-hover, #3a3a3a);
}

[data-theme="dark"] .template-textarea {
    background-color: var(--bg-tertiary);
}

/* Form group divider for fallback values section */
.form-group-divider {
    margin: 16px 0 12px 0;
    padding: 8px 0;
    border-top: 1px solid var(--border-color);
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
}

/* ===========================================
   Traverse Closure Modal Styles
   =========================================== */

/* Summary Section */
.traverse-closure-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 16px;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.summary-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.summary-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
}

/* Tolerance Result Indicator */
.tolerance-result {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 6px;
    margin-top: 12px;
    font-weight: 500;
    font-size: 14px;
}

.tolerance-result.pass {
    background-color: rgba(39, 174, 96, 0.1);
    border: 1px solid #27ae60;
    color: #27ae60;
}

.tolerance-result.fail {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid #e74c3c;
    color: #e74c3c;
}

.tolerance-result .icon {
    font-size: 18px;
}

/* Course Table */
.traverse-course-table-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.traverse-course-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.traverse-course-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.traverse-course-table th {
    background-color: var(--bg-secondary);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.traverse-course-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 12px;
}

.traverse-course-table tbody tr:hover {
    background-color: var(--bg-hover);
}

.traverse-course-table tbody tr:last-child td {
    border-bottom: none;
}

.traverse-course-table tfoot {
    position: sticky;
    bottom: 0;
}

.traverse-course-table tfoot .totals-row td {
    background-color: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    border-bottom: none;
    font-weight: 600;
}

/* Latitude/Departure coloring */
.traverse-course-table td.positive {
    color: #27ae60;
}

.traverse-course-table td.negative {
    color: #e74c3c;
}

/* Responsive adjustments for traverse closure modal */
@media (max-width: 600px) {
    .traverse-closure-summary {
        grid-template-columns: 1fr;
    }

    .traverse-course-table-container {
        max-height: 200px;
    }
}

/* ================================
   LABEL STYLES (Bear & Dist)
   ================================ */

.style-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    margin: 8px 12px;
    transition: all 0.2s;
}

.style-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.style-name {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 13px;
}

.style-settings-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 4px;
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.style-settings-btn:hover {
    background-color: var(--bg-hover);
    color: var(--accent-color);
}

.style-settings-btn svg {
    width: 16px;
    height: 16px;
}

/* ================================
   STYLE EDITOR POPOVER
   ================================ */

.style-editor-popover {
    position: fixed;
    z-index: 10000;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 280px;
    max-width: 400px;
}

.style-editor-content {
    display: flex;
    flex-direction: column;
}

.style-editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    background-color: var(--bg-secondary);
    border-radius: 6px 6px 0 0;
}

.style-editor-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.style-editor-close {
    background: transparent;
    border: none;
    font-size: 20px;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

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

.style-editor-body {
    padding: 16px;
}

.style-setting-group {
    margin-bottom: 16px;
}

.style-setting-group:last-child {
    margin-bottom: 0;
}

.style-setting-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.style-setting-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.style-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
    color: var(--text-primary);
}

.style-option:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-color);
}

.style-option input[type="radio"] {
    margin: 0;
    cursor: pointer;
}

.style-option span {
    user-select: none;
}

/* Snow Animation */
#snowContainer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.snowflake {
    position: absolute;
    top: -10px;
    color: white;
    font-size: 1em;
    user-select: none;
    pointer-events: none;
    animation: fall linear infinite;
}

@keyframes fall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0.8;
    }
}

/* Scale Popover */
.scale-popover {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 9998;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInFromBottom 0.3s ease;
}

@keyframes slideInFromBottom {
    from {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

.scale-popover label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.scale-popover input[type="number"] {
    width: 120px;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.scale-popover input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.scale-unit {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ============================================
   Model/Layout Space Tabs
   ============================================ */
.space-tabs {
    display: flex;
    gap: 2px;
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    align-items: center;
    flex-shrink: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.space-tab {
    padding: 6px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    position: relative;
    bottom: -1px;
}

.space-tab:hover:not(.active) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.space-tab.active {
    background: var(--bg-canvas);
    color: var(--text-primary);
    border-color: var(--border-color);
    border-bottom: 1px solid var(--bg-canvas);
    font-weight: 600;
}

.space-tab.add-layout {
    padding: 6px 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
}

.space-tab.add-layout:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Layout tab context menu trigger */
.space-tab[data-space="layout"] {
    padding-right: 24px;
}

.space-tab[data-space="layout"]::after {
    content: '';
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    opacity: 0.6;
}

.space-tab[data-space="layout"]:hover::after {
    opacity: 1;
}

/* ============================================
   Viewport Toolbar (Layout Space)
   ============================================ */
.viewport-toolbar {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    flex-shrink: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.viewport-toolbar.hidden {
    display: none;
}

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

.viewport-tool-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
}

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

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

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

.viewport-tool-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.viewport-toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 4px;
}

.viewport-scale-control {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    margin: 0 4px;
}

.viewport-scale-control label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.viewport-scale-control select {
    padding: 4px 8px;
    font-size: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
}

.viewport-scale-control select:hover {
    border-color: var(--border-medium);
}

.viewport-scale-control select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Viewport info display */
.viewport-info {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-secondary);
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
}

/* ============================================
   Layout Settings Panel
   ============================================ */
.layout-panel {
    position: absolute;
    top: 60px;
    right: 20px;
    width: 280px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 16px var(--shadow-color);
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.layout-panel.hidden {
    display: none;
}

.layout-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    border-radius: 8px 8px 0 0;
}

.layout-panel-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-close-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

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

.layout-panel-body {
    padding: 16px;
    max-height: 400px;
    overflow-y: auto;
}

.layout-panel-body .form-group {
    margin-bottom: 16px;
}

.layout-panel-body .form-group:last-child {
    margin-bottom: 0;
}

.layout-panel-body label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.layout-panel-body input[type="text"],
.layout-panel-body input[type="number"],
.layout-panel-body select {
    width: 100%;
    padding: 8px 12px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.layout-panel-body input:hover,
.layout-panel-body select:hover {
    border-color: var(--border-medium);
}

.layout-panel-body input:focus,
.layout-panel-body select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.15);
}

/* Custom size inputs */
.custom-size-group.hidden {
    display: none;
}

.custom-size-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.custom-size-inputs input {
    flex: 1;
    width: auto;
}

.size-separator {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Margin inputs */
.margin-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.margin-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.margin-row label {
    font-size: 11px;
    margin-bottom: 0;
}

.margin-row input {
    width: 100%;
}

/* Action button in layout panel */
.layout-panel-body .action-btn.primary {
    width: 100%;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.layout-panel-body .action-btn.primary:hover {
    background: var(--accent-primary-hover);
}

/* ============================================
   Utility Classes for Layout/Viewport System
   ============================================ */

/* Hidden utility class */
.hidden {
    display: none !important;
}

/* Viewport selection highlight */
.viewport-selected {
    outline: 2px solid var(--accent-primary);
    outline-offset: -2px;
}

/* Viewport editing mode indicator */
.viewport-editing {
    outline: 2px dashed var(--accent-selection);
    outline-offset: -2px;
}

/* Paper space background pattern */
.paper-space-bg {
    background-image:
        linear-gradient(45deg, var(--bg-tertiary) 25%, transparent 25%),
        linear-gradient(-45deg, var(--bg-tertiary) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--bg-tertiary) 75%),
        linear-gradient(-45deg, transparent 75%, var(--bg-tertiary) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* ============================================
   Context Menu (for Layout tabs, etc.)
   ============================================ */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 16px var(--shadow-color);
    padding: 4px 0;
    min-width: 160px;
    z-index: 10000;
}

.context-menu.hidden {
    display: none;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 16px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.15s ease;
}

.context-menu-item:hover {
    background: var(--bg-hover);
}

.context-menu-item svg {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.context-menu-item.danger {
    color: var(--accent-danger);
}

.context-menu-item.danger svg {
    color: var(--accent-danger);
}

.context-menu-item.danger:hover {
    background: rgba(231, 76, 60, 0.1);
}

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

/* ============================================
   Small Modal (for rename dialog, etc.)
   ============================================ */
.small-modal {
    max-width: 360px;
}

.small-modal .modal-body {
    padding: 20px;
}

.small-modal .form-group {
    margin-bottom: 0;
}

.small-modal .form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.small-modal .form-group input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.small-modal .form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.15);
}