body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #2a2a2a;
    color: #e0e0e0;
}

/* Main Menu Bar */
#main-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: #1e1e1e;
    border-bottom: 1px solid #404040;
    z-index: 10;
    display: flex;
    align-items: center;
    padding: 0 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.menu-item {
    position: relative;
    padding: 6px 12px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.menu-item:hover {
    background: #2a2a2a;
}

.menu-label {
    font-size: 12px;
    color: #e0e0e0;
    font-weight: 500;
}

.menu-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    min-width: 160px;
    display: none;
    z-index: 1000;
    padding: 4px 0;
}

.menu-item:hover .menu-dropdown {
    display: block;
}

.menu-option {
    padding: 6px 12px;
    font-size: 11px;
    color: #e0e0e0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.menu-option:hover {
    background: #0078d4;
    color: white;
}

.menu-option.has-submenu {
    position: relative;
}

.menu-option.has-submenu:hover .submenu {
    display: block;
}

.submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    min-width: 140px;
    display: none;
    padding: 4px 0;
    z-index: 1001;
}

.submenu .menu-option {
    padding: 6px 12px;
    font-size: 11px;
    color: #e0e0e0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.submenu .menu-option:hover {
    background: #0078d4;
    color: white;
}

.menu-separator {
    height: 1px;
    background: #404040;
    margin: 4px 0;
}

#scene-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Left sidebar for tools - Photopea style */
#toolbar {
    position: fixed;
    top: 30px;
    left: 0;
    width: 60px;
    height: calc(100vh - 30px);
    background: #1e1e1e;
    border-right: 1px solid #404040;
    z-index: 2;
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
}

/* Top panel for parameters - Photopea style */
#top-panel {
    position: fixed;
    top: 30px;
    left: 60px;
    right: 0;
    height: 50px;
    background: #2a2a2a;
    border-bottom: 1px solid #404040;
    z-index: 2;
    overflow: hidden;
    padding: 6px 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Main content area (scene) */
#scene-container {
    position: fixed;
    top: 80px;
    left: 60px;
    right: 0;
    bottom: 0;
    z-index: 1;
}

/* Toolbar button styles - Photopea style */
.tool-btn {
    width: 44px;
    height: 44px;
    margin: 4px 8px;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 6px;
    color: #e0e0e0;
}

.tool-btn:hover {
    background: #3a3a3a;
    border-color: #606060;
    transform: scale(1.05);
}

.tool-btn.active {
    background: #0078d4;
    border-color: #0078d4;
    color: white;
    transform: scale(1.1);
}

.tool-icon {
    font-size: 20px;
    line-height: 1;
    margin-bottom: 2px;
}

.tool-label {
    font-size: 9px;
    text-align: center;
    line-height: 1;
    font-weight: 500;
}

/* Parameter panel styles - Photopea style */
.parameter-panel {
    display: none;
    background: #2a2a2a;
    border-radius: 4px;
    padding: 6px 8px;
    margin-bottom: 6px;
    border: 1px solid #404040;
}

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

.form-group {
    margin-bottom: 4px;
    display: inline-block;
    width: calc(50% - 4px);
    margin-right: 8px;
    vertical-align: top;
}

.form-group:nth-child(even) {
    margin-right: 0;
}

.form-group label {
    display: block;
    margin-bottom: 2px;
    color: #c0c0c0;
    font-weight: 500;
    font-size: 9px;
}

.form-group input {
    width: 100%;
    padding: 3px 4px;
    border: 1px solid #404040;
    border-radius: 3px;
    box-sizing: border-box;
    background: #1e1e1e;
    color: #e0e0e0;
    font-size: 10px;
}

.form-group input:focus {
    outline: none;
    border-color: #0078d4;
    box-shadow: 0 0 0 1px rgba(0, 120, 212, 0.2);
}

/* Make color picker smaller */
.form-group input[type="color"] {
    height: 24px;
    padding: 2px;
    cursor: pointer;
    border: 1px solid #404040;
}

.form-group input[type="range"] {
    width: 60%;
    margin-right: 4px;
    vertical-align: middle;
    background: #1e1e1e;
    border: 1px solid #404040;
}

.form-group span[id$="-value"] {
    display: inline-block;
    width: 35%;
    text-align: right;
    font-weight: 500;
    color: #e0e0e0;
    font-size: 9px;
}

button {
    background: #0078d4;
    color: white;
    border: none;
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    margin: 2px 0;
    width: 100%;
    transition: background-color 0.2s ease;
    font-size: 9px;
    font-weight: 500;
}

button:hover {
    background: #106ebe;
}

/* Toggle button active state */
button.active {
    background: #d13438;
}

button.active:hover {
    background: #b02a2e;
}

/* Brush tool cursor */
.brush-mode-active {
    cursor: crosshair !important;
}

.selection-mode-active {
    cursor: pointer;
}

.tool-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.export-import {
    margin-top: 12px;
}

/* Compass styles */
#compass {
    position: fixed;
    bottom: 20px;
    left: 80px;
    width: 60px;
    height: 60px;
    background: rgba(42, 42, 42, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border: 1px solid #4a9eff;
}

.compass-rose {
    position: relative;
    width: 40px;
    height: 40px;
    border: 2px solid #4a9eff;
    border-radius: 50%;
}

.direction {
    position: absolute;
    font-size: 10px;
    font-weight: bold;
    color: white;
}

.direction:nth-child(1) { top: -8px; left: 50%; transform: translateX(-50%); } /* N */
.direction:nth-child(2) { top: 50%; right: -8px; transform: translateY(-50%); } /* E */
.direction:nth-child(3) { bottom: -8px; left: 50%; transform: translateX(-50%); } /* S */
.direction:nth-child(4) { top: 50%; left: -8px; transform: translateY(-50%); } /* W */

/* Hierarchy Panel Styles */
.hierarchy-panel {
    position: fixed;
    top: 92px;
    right: -300px;
    width: 280px;
    height: calc(110vh - 110px);
    background: #1e1e1e;
    border-left: 1px solid #404040;
    z-index: 200;
    transition: right 0.3s ease;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
}

.hierarchy-panel.open {
    right: 0;
}

.hierarchy-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #404040;
    background: #2a2a2a;
}

.hierarchy-header h3 {
    margin: 0;
    color: #e0e0e0;
    font-size: 16px;
    font-weight: 500;
}

.hierarchy-close-btn {
    background: none !important;
    border: none !important;
    color: #e0e0e0 !important;
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
}

.hierarchy-close-btn:hover {
    background: #404040 !important;
    color: #ffffff !important;
    transform: scale(1.1);
}

.hierarchy-close-btn.active {
    background: #404040 !important;
    color: #ffffff !important;
}

.hierarchy-close-btn.active:hover {
    background: #505050 !important;
    color: #ffffff !important;
}

.hierarchy-content {
    padding: 10px 0;
    overflow-y: auto;
    height: calc(100% - 60px);
}

.hierarchy-section {
    margin-bottom: 10px;
}

.hierarchy-item {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: #e0e0e0;
    cursor: pointer;
    transition: background-color 0.2s;
    border-left: 3px solid transparent;
    font-size: 14px;
    gap: 8px;
}

.hierarchy-item:hover {
    background: #404040;
    border-left-color: #0078d4;
}

.hierarchy-item.selected {
    background: #0078d4;
    border-left-color: #0078d4;
}

.hierarchy-expand {
    margin-right: 8px;
    font-size: 10px;
    color: #c0c0c0;
    transition: transform 0.2s ease;
    width: 12px;
    text-align: center;
}

.hierarchy-item.expanded .hierarchy-expand {
    transform: rotate(90deg);
}

.hierarchy-children {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #1a1a1a;
}

.hierarchy-children.expanded {
    max-height: 500px;
}

.hierarchy-child {
    display: flex;
    align-items: center;
    padding: 8px 20px 8px 40px;
    color: #c0c0c0;
    font-size: 13px;
    border-left: 2px solid transparent;
    transition: background-color 0.2s;
    gap: 8px;
}

.hierarchy-child:hover {
    background: #2a2a2a;
    border-left-color: #0078d4;
}

.hierarchy-child.selected {
    background: #0078d4;
    border-left-color: #0078d4;
    color: white;
}

.hierarchy-icon {
    margin-right: 12px;
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.hierarchy-name {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
}

.hierarchy-count {
    background: #0078d4;
    color: white;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    min-width: 24px;
    text-align: center;
    margin-left: auto;
}

.hierarchy-toggle {
    background: none;
    border: none;
    color: #e0e0e0;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    font-size: 14px;
    margin-right: 8px;
    transition: all 0.2s ease;
    opacity: 0.8;
    order: -1;
}

.hierarchy-toggle:hover {
    opacity: 1;
    background: #404040;
}

.hierarchy-toggle.hidden {
    opacity: 0.3;
}

.hierarchy-toggle.hidden:hover {
    opacity: 0.6;
}

/* Hamburger Menu Button */
.hamburger-btn {
    position: fixed;
    top: 90px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 6px;
    cursor: pointer;
    z-index: 300;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    transition: background-color 0.2s;
}

.hamburger-btn:hover {
    background: #404040;
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: #e0e0e0;
    transition: transform 0.3s ease;
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Adjust compass position when hierarchy is open */
.hierarchy-panel.open ~ .hamburger-btn {
    right: 300px;
    opacity: 0;
    pointer-events: none;
}

/* Slider value display */
input[type="range"] {
    width: 80%;
    margin-right: 8px;
}

span[id$="-value"] {
    display: inline-block;
    width: 20px;
    text-align: right;
}

/* Tree editor specific styles */
#tree-editor {
    background: #1e1e1e;
}

.edit-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
}

#delete-tree {
    background: #d13438;
}

#delete-tree:hover {
    background: #b02a2e;
}

/* Camera Navigation Panel */
.camera-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.camera-section {
    border: 1px solid #404040;
    border-radius: 4px;
    padding: 8px;
    background: #1e1e1e;
}

.camera-section h3 {
    margin: 0 0 8px 0;
    font-size: 11px;
    color: #c0c0c0;
    text-align: center;
    font-weight: 500;
}

.camera-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.camera-row {
    display: flex;
    gap: 4px;
}

.camera-btn {
    width: 32px;
    height: 32px;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    padding: 0;
    margin: 0;
    color: #e0e0e0;
}

.camera-btn:hover {
    background: #3a3a3a;
    border-color: #606060;
    transform: scale(1.05);
}

.camera-btn:active {
    transform: scale(0.95);
}

/* Planting mode buttons */
.planting-mode-buttons {
    display: flex;
    gap: 3px;
    margin-top: 2px;
}

.mode-btn {
    flex: 1;
    background: #1e1e1e;
    border: 1px solid #404040;
    border-radius: 3px;
    padding: 3px 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 9px;
    color: #c0c0c0;
}

.mode-btn:hover {
    background: #2a2a2a;
    border-color: #606060;
}

.mode-btn.active {
    background: #0078d4;
    border-color: #0078d4;
    color: white;
}

/* Height range styling */
.height-range {
    display: flex;
    align-items: center;
    gap: 4px;
}

.height-range input {
    flex: 1;
    width: auto;
}

.height-range span {
    margin: 0 4px;
    font-weight: 500;
    color: #e0e0e0;
    font-size: 9px;
}

/* STL Objects List Styles */
.stl-objects-list {
    max-height: 120px;
    overflow-y: auto;
    border: 1px solid #404040;
    border-radius: 4px;
    padding: 6px;
    background: #1e1e1e;
}

.stl-object-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px;
    margin-bottom: 4px;
    background: #2a2a2a;
    border-radius: 3px;
    border: 1px solid #404040;
}

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

.stl-object-item span {
    flex: 1;
    font-size: 11px;
    color: #e0e0e0;
    word-break: break-word;
}

.remove-btn {
    background: #d13438;
    color: white;
    border: none;
    padding: 3px 6px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
    margin-left: 6px;
    width: auto;
}

.remove-btn:hover {
    background: #b02a2e;
}

/* Rotation Controls Styles */
.rotation-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.rotation-axis {
    display: flex;
    align-items: center;
    gap: 8px;
}

.rotation-axis label {
    min-width: 16px;
    margin-bottom: 0;
    font-weight: 500;
    color: #e0e0e0;
    font-size: 11px;
}

.rotation-axis input[type="range"] {
    flex: 1;
    width: auto;
    margin-right: 8px;
}

.rotation-axis input[type="number"] {
    width: 50px;
    padding: 3px 6px;
    border: 1px solid #404040;
    border-radius: 3px;
    text-align: center;
    margin-right: 8px;
    background: #1e1e1e;
    color: #e0e0e0;
    font-size: 11px;
}

.rotation-axis span {
    min-width: 35px;
    text-align: right;
    font-weight: 500;
    color: #e0e0e0;
    font-size: 11px;
}

/* Position Controls Styles */
.position-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.position-axis {
    display: flex;
    align-items: center;
    gap: 8px;
}

.position-axis label {
    min-width: 16px;
    margin-bottom: 0;
    font-weight: 500;
    color: #e0e0e0;
    font-size: 11px;
}

.position-axis input[type="range"] {
    flex: 1;
    width: auto;
    margin-right: 8px;
}

.position-axis input[type="number"] {
    width: 100px;
    padding: 3px 6px;
    border: 1px solid #404040;
    border-radius: 3px;
    text-align: center;
    margin-right: 8px;
    background: #1e1e1e;
    color: #e0e0e0;
    font-size: 11px;
}

/* Loading Overlay Styles */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-content {
    background: #2a2a2a;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    text-align: center;
    min-width: 200px;
    border: 1px solid #404040;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #404040;
    border-top: 4px solid #0078d4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 12px;
}

.loading-text {
    color: #e0e0e0;
    font-size: 14px;
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* STL Layers List Styles */
.stl-layers-list {
    max-height: 120px;
    overflow-y: auto;
    border: 1px solid #404040;
    border-radius: 4px;
    padding: 6px;
    background: #1e1e1e;
}

.layer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px;
    margin-bottom: 4px;
    background: #2a2a2a;
    border-radius: 3px;
    border: 1px solid #404040;
}

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

.layer-item span {
    flex: 1;
    font-size: 11px;
    color: #e0e0e0;
    word-break: break-word;
}

.layer-toggle {
    background: #107c10;
    color: white;
    border: none;
    padding: 3px 6px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
    margin-left: 6px;
    width: auto;
}

.layer-toggle:hover {
    background: #0e6e0e;
}

.layer-toggle.hidden {
    background: #6c757d;
}

.layer-toggle.hidden:hover {
    background: #107c10;
}

/* STL Solids List Styles */
.stl-solid-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px;
    margin: 4px 0;
    background: #1e1e1e;
    border: 1px solid #404040;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.stl-solid-item:hover {
    background: #2a2a2a;
}

.solid-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.solid-name {
    font-weight: 500;
    color: #e0e0e0;
    margin-bottom: 2px;
    font-size: 11px;
}

.solid-facets {
    font-size: 10px;
    color: #a0a0a0;
}

.solid-actions {
    display: flex;
    gap: 4px;
}

.load-btn, .load-all-btn {
    padding: 4px 8px;
    font-size: 10px;
    width: auto;
    margin: 0;
}

.load-btn {
    background: #0078d4;
}

.load-btn:hover {
    background: #106ebe;
}

.load-all-btn {
    background: #107c10;
}

.load-all-btn:hover {
    background: #0e6e0e;
}

/* STL Objects List header */
#stl-objects-list h4 {
    margin: 0 0 8px 0;
    color: #e0e0e0;
    font-size: 12px;
    border-bottom: 1px solid #404040;
    padding-bottom: 4px;
}

/* Load All Section */
.load-all-section {
    margin-bottom: 12px;
    padding: 8px;
    background: #1e1e1e;
    border-radius: 4px;
    border: 1px solid #404040;
}

.load-all-section .load-all-btn {
    width: 100%;
    background: #0078d4;
    font-weight: 500;
}

.load-all-section .load-all-btn:hover {
    background: #106ebe;
}

/* STL Category Styles */
.stl-category {
    margin-bottom: 12px;
    border: 1px solid #404040;
    border-radius: 6px;
    overflow: hidden;
    background: #1e1e1e;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: #2a2a2a;
    border-bottom: 1px solid #404040;
    font-weight: 500;
}

.category-name {
    color: #e0e0e0;
    font-size: 12px;
}

.category-count {
    color: #a0a0a0;
    font-size: 10px;
    margin-left: 6px;
}

.category-actions {
    display: flex;
    gap: 6px;
}

.load-category-btn {
    padding: 4px 8px;
    font-size: 10px;
    width: auto;
    margin: 0;
    background: #0078d4;
}

.load-category-btn:hover {
    background: #106ebe;
}

.category-solids {
    padding: 8px;
    background: #1e1e1e;
}

.category-solids .stl-solid-item {
    margin: 4px 0;
    padding: 6px;
    background: #2a2a2a;
    border: 1px solid #404040;
    border-radius: 3px;
}

.category-solids .stl-solid-item:hover {
    background: #3a3a3a;
}

.category-solids .solid-name {
    font-size: 10px;
}

.category-solids .solid-facets {
    font-size: 9px;
}

.category-solids .load-btn {
    padding: 3px 6px;
    font-size: 9px;
}

/* Category Controls */
.category-controls {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    padding: 8px;
    background: #1e1e1e;
    border-radius: 4px;
    border: 1px solid #404040;
}

.expand-all-btn, .collapse-all-btn {
    flex: 1;
    padding: 6px 8px;
    font-size: 10px;
    background: #6c757d;
    margin: 0;
}

.expand-all-btn:hover, .collapse-all-btn:hover {
    background: #5a6268;
}

/* Collapsible Category Styles */
.category-header {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.category-header:hover {
    background: #3a3a3a !important;
}

.category-header.expanded {
    background: #1e1e1e !important;
}

.category-info {
    display: flex;
    align-items: center;
    gap: 6px;
}

.category-toggle {
    font-size: 10px;
    color: #a0a0a0;
    transition: transform 0.2s ease;
    min-width: 10px;
    text-align: center;
}

.category-header.expanded .category-toggle {
    transform: rotate(90deg);
}

/* Animation for category expansion */
.category-solids {
    transition: all 0.3s ease;
    overflow: hidden;
}

.category-solids[style*="display: none"] {
    max-height: 0;
    opacity: 0;
}

.category-solids[style*="display: block"] {
    max-height: 1000px;
    opacity: 1;
} 

/* Special layout for tree panel - all in one row */
#tree-panel .form-group {
    display: inline-block;
    width: auto;
    margin-right: 6px;
    margin-bottom: 2px;
    vertical-align: top;
    white-space: nowrap;
}

#tree-panel .form-group:last-child {
    margin-right: 0;
}

/* Sun panel - all in one row (same as tree panel) */
#sun-panel {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #2d2d2d;
    border-radius: 4px;
    border: 1px solid #404040;
}

#sun-panel .form-group {
    display: inline-block;
    width: auto;
    margin-right: 6px;
    margin-bottom: 2px;
    vertical-align: top;
    white-space: nowrap;
    align-items: center;
    gap: 4px;
    font-size: 9px;
    color: #e0e0e0;
}

#sun-panel .form-group:last-child {
    margin-right: 0;
}

#sun-panel label {
    font-size: 7px;
    margin-bottom: 1px;
    color: #b0b0b0;
    white-space: nowrap;
    min-width: 30px;
    text-align: center;
    display: block;
}

#sun-panel input[type="range"] {
    width: 80px;
    height: 14px;
    background: #1a1a1a;
    border-radius: 2px;
    outline: none;
    margin-right: 2px;
    font-size: 7px;
    padding: 1px 2px;
}

#sun-panel span[id$="-value"] {
    width: 12px;
    font-size: 7px;
    text-align: right;
    font-weight: 500;
    color: #e0e0e0;
}

/* Separators between sun parameter sections */
#sun-panel .form-group:nth-child(1) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#sun-panel .form-group:nth-child(2) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#sun-panel .form-group:nth-child(3) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

/* Location panel - compact single row (same as tree panel) */
#location-panel {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #2d2d2d;
    border-radius: 4px;
    border: 1px solid #404040;
}

#location-panel .form-group {
    display: inline-block;
    width: auto;
    margin-right: 6px;
    margin-bottom: 2px;
    vertical-align: top;
    white-space: nowrap;
    align-items: center;
    gap: 4px;
    font-size: 9px;
    color: #e0e0e0;
}

#location-panel .form-group:last-child {
    margin-right: 0;
}

#location-panel label {
    font-size: 7px;
    margin-bottom: 1px;
    color: #b0b0b0;
    white-space: nowrap;
    min-width: 50px;
    text-align: center;
    display: block;
}

#location-panel input[type="range"] {
    width: 80px;
    height: 14px;
    background: #1a1a1a;
    border-radius: 2px;
    outline: none;
    margin-right: 2px;
    font-size: 7px;
    padding: 1px 2px;
}

#location-panel input[type="number"] {
    width: 60px;
    font-size: 7px;
    padding: 1px 2px;
    border: 1px solid #404040;
    border-radius: 2px;
    background: #1a1a1a;
    color: #e0e0e0;
    text-align: right;
    /* Hide default browser arrows */
    -webkit-appearance: none;
    -moz-appearance: textfield;
}

/* Hide spinner arrows for webkit browsers */
#location-panel input[type="number"]::-webkit-outer-spin-button,
#location-panel input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#location-panel .separator {
    width: 1px;
    height: 20px;
    background: #404040;
    margin: 0 4px;
    display: inline-block;
    vertical-align: middle;
}

/* Separators between parameter sections */
#tree-panel .form-group:nth-child(1) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#tree-panel .form-group:nth-child(2) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#tree-panel .form-group:nth-child(3) {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#tree-panel #brush-settings {
    border-right: 1px solid #404040;
    padding-right: 8px;
    margin-right: 8px;
}

#tree-panel #plant-tree {
    margin-left: 0;
}

#tree-panel .height-range {
    display: inline-flex;
    align-items: center;
    gap: 1px;
}

#tree-panel .height-range input {
    width: 40px;
    padding: 2px 2px;
    font-size: 8px;
}

#tree-panel .height-range span {
    margin: 0 1px;
    font-size: 7px;
}

#tree-panel input[type="color"] {
    width: 25px;
    height: 18px;
    padding: 1px;
}

#tree-panel .planting-mode-buttons {
    display: inline-flex;
    gap: 1px;
    margin: 0;
}

#tree-panel .mode-btn {
    padding: 2px 3px;
    font-size: 7px;
    min-width: 30px;
}

#tree-panel #brush-settings {
    display: inline-block;
    margin-left: 4px;
}

#tree-panel #brush-settings .form-group {
    display: inline-block;
    width: auto;
    margin-right: 4px;
}

#tree-panel #brush-settings input[type="range"] {
    width: 40px;
    margin-right: 1px;
}

#tree-panel #brush-settings span[id$="-value"] {
    width: 15px;
    font-size: 7px;
}

#tree-panel #brush-density-group {
    display: inline-block;
    margin-left: 4px;
}

#tree-panel #brush-density-group input[type="range"] {
    width: 40px;
    margin-right: 1px;
}

#tree-panel #brush-density-group span[id$="-value"] {
    width: 15px;
    font-size: 7px;
}

#tree-panel .separator {
    width: 1px;
    height: 20px;
    background: #404040;
    margin: 0 4px;
    display: inline-block;
    vertical-align: middle;
}

#tree-panel #plant-tree {
    display: inline-block;
    width: auto;
    padding: 2px 4px;
    font-size: 7px;
    margin: 0 0 0 4px;
}

#tree-panel label {
    font-size: 7px;
    margin-bottom: 1px;
}

#tree-panel input {
    font-size: 7px;
    padding: 1px 2px;
}