:root {
	/* === BASE === */
	--color-white: #ffffff;
	--color-black: #000000;
	--color-transparent: transparent;

	/* === GREYSCALE === */
	--color-bg-light: #f8f9fa;
	--color-bg-medium: #e9ecef;
	--color-border: #ced4da;
	--color-text-muted: #6c757d;
	--color-text-primary: #212529;

	/* === PRIMARY (Blue) === */
	--color-primary-base: #007bff;
	--color-primary-dark: #0056b3;
	--color-primary-light: #80b3ff;
	--color-primary-pale: #e7f3ff;
	--color-primary-text: #004085;

	/* === SUCCESS (Green) === */
	--color-success-base: #28a745;
	--color-success-dark: #218838;
	--color-success-pale: #d4edda;
	--color-success-text: #155724;

	/* === DANGER (Red) === */
	--color-danger-base: #dc3545;
	--color-danger-dark: #c82333;
	--color-danger-pale: #f8d7da;
	--color-danger-text: #721c24;

	/* === WARNING (Yellow) === */
	--color-warning-base: #ffc107;
	--color-warning-pale: #fff3cd;
	--color-warning-text: #856404;

	/* === ACCENT (Orange/Teal) === */
	--color-accent-orange: #f39c12;
	--color-accent-teal: #4ecdc4;

	/* === OVERLAYS & SHADOWS === */
	--color-overlay-faint: rgba(0, 0, 0, 0.02);
	--color-overlay-light: rgba(0, 0, 0, 0.1);
	--color-overlay-medium: rgba(0, 0, 0, 0.3);
	--color-overlay-dark: rgba(0, 0, 0, 0.5);
	--color-overlay-darker: rgba(0, 0, 0, 0.7);

	--font-xxs: 8px;
	--font-xs: 9px;
	--font-sm: 10px;
	--font-md: 11px;
	--font-base: 12px;
	--font-lg: 14px;

	--border-radius: 4px;
	--border-radius-xl: 8px;

	--transition: all 0.2s ease;

	--shadow-xs: 0 0 0 2px rgba(0, 123, 255, 0.1);
	--shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
	--shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
	--shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.3);

	--spacing-xxs: 2px;
	--spacing-xs: 4px;
	--spacing-sm: 6px;
	--spacing-md: 8px;
	--spacing-10: 10px;
	--spacing-lg: 12px;
	--spacing-xl: 16px;
	--spacing-xxl: 20px;

	--menu-offset-x: 10px;
	--menu-toggle-width: 45px;
	--side-menu-width: 280px;

	--z-sound-area: 300;
	--z-control-path-back: 350;
	--z-control-path-front: 360;
	--z-sound-element: 600;
	--z-user-marker: 650;
	--z-menu-overlay: 999;
	--z-side-menu-toggle: 1100;
	--z-side-menu: 10000;
	--z-context-menu-overlay: 11999;
	--z-context-menu: 12000;
	--z-file-manager: 13000;
	--z-modal-overlay: 20000;
	--z-modal-dialog: 20001;
}

/* ========================================
   BASE STYLES
   ======================================== */

html,
body {
	margin: 0;
	padding: 0;
	height: 100%;
	font-family: Arial, sans-serif;
}

button {
	border: 0;
	background: var(--color-transparent);
	cursor: pointer;
}

/* UTILITY */

.flex-center {
	display: flex;
	align-items: center;
}

.hidden {
	display: none !important;
}

/* ========================================
   MAP CONTAINER
   ======================================== */

.map-container {
	height: 100%;
}

.leaflet-soundarea-pane {
	z-index: var(--z-sound-area);
}

.leaflet-controlpathback-pane {
	z-index: var(--z-control-path-back);
}

.leaflet-controlpathfront-pane {
	z-index: var(--z-control-path-front);
}

.leaflet-soundelement-pane {
	z-index: var(--z-sound-element);
}

.leaflet-usermarker-pane {
	z-index: var(--z-user-marker);
}

.leaflet-container {
	background: var(--color-black);
}

/* ========================================
   MENU SYSTEM
   ======================================== */

.menu-close-btn {
	position: absolute;
	top: 0px;
	right: 8px;
	background: var(--color-transparent);
	border: none;
	color: var(--color-white);
	font-size: 24px;
	line-height: 1;
	width: 28px;
	height: 28px;
	cursor: pointer;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--border-radius);
	transition: all 0.15s;
	z-index: 10;
}

.side-menu .menu-close-btn {
	color: var(--color-black);
}

.context-menu-header {
	position: relative;
	padding-right: 36px;
}

.menu-title {
	display: block;
	flex: 1;
}

.menu-toggle {
	position: absolute;
	top: 10px;
	right: var(--menu-offset-x);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	padding: var(--spacing-md) var(--spacing-lg);
	font-size: 1.2rem;
	box-shadow: var(--shadow);
	z-index: var(--z-side-menu-toggle);
	transition: background 0.2s;
	width: var(--menu-toggle-width);
}

.menu-toggle:hover {
	background: var(--color-bg-medium);
}

.menu-toggle .fa-bars {
	color: var(--color-text-primary);
}

.relative-positioning label {
	font-size: var(--font-base);
	opacity: 0.7;
	min-width: 14px;
	text-align: center;
}

.relative-positioning input[type="checkbox"] {
	align-items: center;
	gap: 8px;
	font-size: var(--font-md);
	cursor: pointer;
}

.menu-count {
	position: absolute;
	top: -5px;
	right: -5px;
	background: var(--color-primary-base);
	color: var(--color-white);
	border-radius: 10px;
	padding: var(--spacing-xxs) var(--spacing-sm);
	font-size: var(--font-sm);
	font-weight: bold;
	min-width: 18px;
	text-align: center;
	box-shadow: var(--shadow-sm);
}

/* ========================================
   SIDE MENU
   ======================================== */

.side-menu {
	position: absolute;
	top: 10px;
	right: var(--menu-offset-x);
	width: var(--side-menu-width);
	max-height: calc(100vh - 70px);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	padding: var(--spacing-lg);
	box-shadow: var(--shadow-sm);
	overflow-y: auto;
	display: none;
	z-index: var(--z-side-menu);
}

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

.helper-menu-toggle {
	right: 10px;
}

.elements-menu-toggle {
	top: 60px;
}

.control-menu-toggle {
	top: 110px;
}

.sequencing-menu-toggle {
	top: 160px;
}

.interface-menu-toggle {
	top: 210px;
}

.selection-menu-toggle {
	top: 260px;
}

.about-menu-toggle {
	top: 310px;
}

.helper-menu,
.elements-menu,
.control-menu,
.sequencing-menu,
.interface-menu,
.selection-menu,
.about-menu {
	right: calc(var(--menu-offset-x) + var(--menu-toggle-width) + 5px);
	left: auto;
}

.about-menu {
	overflow-wrap: break-word;
}

.about-text {
	font-size: var(--font-base);
	color: var(--color-text-secondary);
	margin-bottom: var(--spacing-md);
	line-height: 1.5;
}

.about-menu a.menu-btn {
	width: auto;
	text-decoration: none;
	color: inherit;
}

/* ========================================
   MENU SECTIONS
   ======================================== */

.menu-section {
	margin-bottom: var(--spacing-xl);
	padding-bottom: var(--spacing-lg);
	border-bottom: 1px solid var(--color-bg-medium);
}

.menu-section:last-child {
	border-bottom: none;
	margin-bottom: 0;
}

.section-title {
	gap: 8px;
	font-size: var(--font-md);
	font-weight: bold;
	margin: 0 0 8px 0;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	color: var(--color-text-primary);
}

.section-title i {
	font-size: var(--font-md);
	opacity: 0.7;
}

/* ========================================
   BUTTONS
   ======================================== */

.menu-btn,
.btn-add {
	width: 100%;
	padding: var(--spacing-md) var(--spacing-lg);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	transition: all 0.2s;
}

.menu-btn {
	gap: 8px;
	margin-bottom: var(--spacing-xs);
	border: 1px solid var(--color-border);
	text-align: left;

}

.menu-btn i {
	font-size: var(--font-base);
	opacity: 0.7;
	min-width: 14px;
	text-align: center;
}

.menu-btn span {
	flex: 1;
}

.menu-btn:hover,
.btn-add:hover {
	background: var(--color-bg-medium);
	border-color: var(--color-primary-base);
}

.menu-btn:hover i {
	opacity: 1;
}

.btn-add {
	margin-bottom: var(--spacing-md);
	border: 1px dashed var(--color-border);
	text-align: center;
}

.btn-icon {
	padding: var(--spacing-xs) var(--spacing-md);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	transition: all 0.2s;
}

.btn-icon:hover:not(:disabled) {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

.btn-duplicate {
	background: var(--color-success-base) !important;
	color: var(--color-white);
	border-color: var(--color-success-base);
}

.btn-duplicate:hover {
	background: var(--color-success-dark) !important;
	border-color: var(--color-success-dark);
}

.simulation-go-btn {
	background-color: var(--color-success-base);
	color: var(--color-white);
	border: none;
	padding: var(--spacing-sm) var(--spacing-xl);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	font-weight: bold;
	cursor: pointer;
	transition: background-color 0.2s ease-in-out, transform 0.1s ease;
	box-shadow: 0 2px 4px var(--color-overlay-medium);
}

.simulation-go-btn:hover {
	background-color: var(--color-success-dark);
}

.simulation-go-btn:active {
	background-color: var(--color-success-dark);
	transform: translateY(1px);
	box-shadow: 0 1px 2px var(--color-overlay-medium);
}

/* Control Menu positioning */

/* Path elements on map */
.control-path-hint {
	transition: opacity 0.3s ease;
}

.control-path-line,
.control-path-circle {
	stroke-width: 3;
	stroke-dasharray: 5, 5;
	fill: none;
	opacity: 0.7;
	transition: opacity 0.2s;
}

.control-path-line:hover,
.control-path-circle:hover {
	opacity: 1;
	stroke-width: 4;
}

.path-point {
	width: 10px;
	height: 10px;
	background: var(--color-danger-base);
	border: 2px solid var(--color-white);
	border-radius: 50%;
	cursor: pointer;
	transition: all 0.2s;
}

.path-point:hover {
	background: var(--color-danger-base);
	transform: scale(1.3);
}

.path-label {
	display: inline-block;
	padding: var(--spacing-xxs) var(--spacing-sm);
	background: var(--color-danger-base);
	color: var(--color-white);
	border: 1px solid var(--color-white);
	border-radius: var(--border-radius);
	box-shadow: var(--shadow);
	font-size: var(--font-sm);
	font-weight: bold;
	white-space: nowrap;
}

/* Path role and assignment */

.path-role-section {
	margin-bottom: var(--spacing-md);
}

.path-assignments-list {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
}

.path-role-item {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-xs);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border: 1px solid var(--color-border);
}

.path-role-item label {
	flex: 1;
	font-size: var(--font-sm);
	cursor: pointer;
}

.path-role-item input[type="checkbox"],
.path-role-item input[type="radio"] {
	cursor: pointer;
}

/* Path list items */
.path-list-item {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-xxs);
	background: var(--color-overlay-faint);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-danger-base);
	cursor: pointer;
	transition: background 0.2s;
}

.path-list-item:hover {
	background: var(--color-bg-light);
}

.path-icon {
	font-size: var(--font-sm);
	opacity: 0.7;
	color: var(--color-danger-base);
}

.path-label-text {
	flex: 1;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	font-size: var(--font-md);
}

.path-type {
	font-size: var(--font-xs);
	opacity: 0.5;
	text-transform: uppercase;
}

/* Drawing mode indicator */
.drawing-mode-active {
	position: fixed;
	top: 70px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--color-danger-base);
	color: var(--color-white);
	padding: var(--spacing-sm) var(--spacing-xl);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	font-weight: 500;
	z-index: 1000;
	pointer-events: auto;
	box-shadow: var(--shadow-lg);
}

.drawing-mode-active.clickable {
	cursor: pointer;
}

.drawing-mode-active.clickable:hover {
	background: var(--color-success-base);
}

/* Path info display */
.path-info-box {
	margin-bottom: var(--spacing-lg);
	padding: var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-danger-base);
}

.path-info-box strong {
	color: var(--color-text-primary);
	font-size: var(--font-sm);
}

.value-display,
.value-display small {
	opacity: 0.7;
}

.value-display {
	font-size: var(--font-sm);
	cursor: pointer;
}

.value-display small {
	font-size: var(--font-xxs);
}

/* ========================================
   LAYER BUTTONS
   ======================================== */

.layer-buttons {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.layer-btn {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: var(--spacing-md) var(--spacing-lg);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-md);
	text-align: left;
	transition: all 0.2s;
}

.layer-btn:hover {
	background: var(--color-bg-medium);
	border-color: var(--color-primary-base);
}

.layer-btn.active {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

.layer-btn i {
	font-size: var(--font-sm);
	opacity: 0.8;
}

/* ========================================
   USER LAYERS
   ======================================== */

.user-layers-list {
	max-height: 150px;
	overflow-y: auto;
}

.user-layer-item {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-xs);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
}

.user-layer-color {
	width: 12px;
	height: 12px;
	border: 1px solid var(--color-overlay-medium);
	border-radius: 2px;
	flex-shrink: 0;
}

.user-layer-name {
	flex: 1;
	font-size: var(--font-base);
	color: var(--color-text-primary);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	margin: 0 8px;
}

.user-layer-toggle {
	padding: var(--spacing-xxs) var(--spacing-xs);
	background: none;
	border: none;
	font-size: var(--font-sm);
	opacity: 0.5;
	transition: opacity 0.2s;
}

.user-layer-toggle:hover {
	opacity: 1;
}

.user-layer-toggle.active {
	opacity: 1;
	color: var(--color-primary-base);
}

.user-layer-actions {
	display: flex;
	gap: 2px;
}

.user-layer-action {
	padding: var(--spacing-xxs) var(--spacing-xs);
	background: none;
	border: none;
	font-size: var(--font-xs);
	opacity: 0.5;
	transition: opacity 0.2s;
}

.user-layer-action:hover {
	opacity: 1;
}

/* ========================================
   ELEMENTS LIST
   ======================================== */

.elements-list {
	max-height: 300px;
	overflow-y: auto;
	font-size: var(--font-md);
}

.element-list-item {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-xxs);
	background: var(--color-overlay-faint);
	border-radius: var(--border-radius);
	cursor: pointer;
	transition: background 0.2s;
}

.element-list-item:hover {
	background: var(--color-bg-light);
}

.element-icon {
	font-size: var(--font-sm);
	opacity: 0.7;
}

.element-label {
	flex: 1;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.element-type {
	font-size: var(--font-xs);
	opacity: 0.5;
	text-transform: uppercase;
}

.element-type-sound {
	color: var(--color-primary-base);
	opacity: 0.7;
}

.element-type-path {
	color: var(--color-danger-base);
	opacity: 0.7;
}

.element-list-empty {
	padding: var(--spacing-sm);
	color: var(--color-text-muted);
	font-size: var(--font-sm);
	text-align: center;
}

/* ========================================
   WORKSPACE INFO
   ======================================== */

.input-group {
	display: flex;
	gap: 4px;
	margin-bottom: var(--spacing-xs);
}

.workspace-url {
	flex: 1;
	padding: var(--spacing-xs) var(--spacing-sm);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	font-family: monospace;
}

.help-text {
	margin: var(--spacing-xs) 0 0 0;
	font-size: var(--font-xs);
	color: var(--color-text-muted);
	font-style: italic;
}

/* ========================================
   FORM ELEMENTS
   ======================================== */

.map-style-select {
	width: 100%;
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-md);
	cursor: pointer;
	transition: border-color 0.2s;
}

.map-style-select:hover {
	border-color: var(--color-primary-base);
}

.map-style-select:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

.file-input {
	display: none;
}

.checkbox-label {
	gap: 6px;
	margin: var(--spacing-sm) 0;
	font-size: var(--font-md);
	cursor: pointer;
}

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

/* ========================================
   MODAL DIALOG
   ======================================== */

.modal {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-overlay-darker);
	border: none;
	padding: 0;
	z-index: var(--z-modal-overlay);
	display: none;
	justify-content: center;
	align-items: center;
}

.modal[open] {
	display: flex;
}

.modal-input {
	width: 100%;
	padding: var(--spacing-md) var(--spacing-lg);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-lg);
	margin-top: var(--spacing-10);
	box-sizing: border-box;
}

.modal-input:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

/* ========================================
   MAP MARKERS
   ======================================== */

.userIcon {
	background: var(--color-primary-base);
	border: 3px solid var(--color-white);
	border-radius: 50%;
	box-shadow: var(--shadow-sm);
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	overflow: hidden;
	width: 20px;
	height: 20px;
	transition: background-color 0.5s ease;
}

.userIcon .fa-user {
	position: relative;
	z-index: 5;
}

.soundIcon {
	width: 16px;
	height: 16px;
	border: 2px solid var(--color-white);
	border-radius: 50%;
	box-shadow: var(--shadow-sm);
	display: flex;
	align-items: center;
	justify-content: center;
}

.icon-white {
	color: var(--color-white);
}

.icon-danger {
	color: var(--color-danger-base);
}

.icon-success {
	color: var(--color-success-base);
}

.icon-muted {
	color: #999;
}

.icon-sm {
	font-size: var(--font-xxs);
}

.icon-md {
	font-size: var(--font-sm);
}

.icon-lg {
	font-size: 24px;
}

.sound-label {
	display: inline-block;
	padding: var(--spacing-xxs) var(--spacing-xs);
	background: var(--color-white);
	color: var(--color-black);
	border: 1px solid var(--color-border);
	border-radius: 2px;
	box-shadow: var(--shadow);
	font-size: var(--font-sm);
	white-space: nowrap;
}

/* ========================================
   VERTEX HANDLES
   ======================================== */

.vertex-handle {
	width: 8px;
	height: 8px;
	background: var(--color-danger-base);
	border: 1px solid var(--color-white);
	border-radius: 50%;
	box-sizing: border-box;
	cursor: pointer;
	transition: var(--transition);
}

.vertex-handle:hover {
	background: var(--color-danger-dark);
	transform: scale(1.2);
}

.vertex-handle-marker {
	background: var(--color-transparent) !important;
	border: none !important;
	display: flex !important;
	align-items: center !important;
	justify-content: center !important;
}

@media (pointer: coarse) {
	.vertex-handle {
		width: 12px;
		height: 12px;
	}
}

.radius-handle {
	width: 12px;
	height: 12px;
	background: var(--color-white);
	border: 2px solid var(--color-text-muted);
	border-radius: 50%;
	cursor: grab;
}

.radius-handle:active {
	cursor: grabbing;
}

.sound-handle {
	background: var(--color-transparent) !important;
	border: none !important;
	display: flex !important;
	align-items: center !important;
	justify-content: center !important;
}

.handle-inner {
	width: 12px;
	height: 12px;
	background: var(--color-white);
	border: 2px solid var(--color-text-muted);
	border-radius: 50%;
	box-sizing: border-box;
	cursor: grab;
}

.handle-inner:active {
	cursor: grabbing;
}

/* ========================================
   CONTEXT MENU
   ======================================== */

.element-nav-dropdown {
	margin-right: var(--spacing-lg);
	display: inline-block;
	margin-top: -2px;
}

.context-menu {
	position: fixed;
	width: 360px;
	max-width: 90vw;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	padding: var(--spacing-10);
	z-index: var(--z-context-menu);
	box-shadow: var(--shadow-lg);
	border-radius: var(--border-radius);
}

.context-menu-header {
	cursor: grab;
	padding: var(--spacing-md);
	background: var(--color-primary-base);
	color: var(--color-white);
	margin: calc(-1 * var(--spacing-10)) calc(-1 * var(--spacing-10)) var(--spacing-md) -10px;
	font-weight: bold;
	text-align: center;
	border-radius: var(--border-radius) 4px 0 0;
	user-select: none;
	touch-action: none;
	display: flex;
	align-items: center;
	gap: 8px;
}

/* Universal context menu controls styling */
.context-menu select,
.context-menu input[type="text"],
.context-menu input[type="range"] {
	font-size: var(--font-sm);
}

.context-menu select,
.context-menu input[type="text"] {
	padding: var(--spacing-xs) var(--spacing-sm);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
}

.context-menu select:focus,
.context-menu input[type="text"]:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

/* Tab bar */
.tab-bar {
	display: flex;
	gap: 4px;
	margin-bottom: var(--spacing-md);
}

.tab-bar button {
	flex: 1;
	padding: var(--spacing-sm);
	border: 1px solid var(--color-border);
	background: var(--color-bg-light);
	cursor: pointer;
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	transition: all 0.2s;
}

.tab-bar button:hover {
	background: var(--color-bg-medium);
}

.tab-bar button.active {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

/* Parameters container */
.params-container {
	min-height: 100px;
}

/* Parameter groups */
.parameter-group {
	margin-bottom: var(--spacing-xxs);
	padding: var(--spacing-xxs) 0;
	border-bottom: 1px solid var(--color-bg-medium);
}

.parameter-group:last-child {
	margin-bottom: 0;
	border-bottom: none;
}

.parameter-label {
	margin-bottom: var(--spacing-xs);
	font-size: var(--font-sm);
	font-weight: bold;
	color: var(--color-text-primary);
}

/* Parameter controls - universal styling for all tabs */
.parameter-control {
	display: flex;
	align-items: center;
	margin-bottom: var(--spacing-sm);
}

.parameter-control label {
	margin-right: var(--spacing-md);
	font-size: var(--font-sm);
	color: var(--color-text-primary);
}

.parameter-control input[type="range"] {
	flex: 1;
	margin-right: var(--spacing-sm);
}

.parameter-control input[type="text"] {
	flex: 1;
	margin-right: 0;
}

.parameter-control select {
	flex: 1;
	margin-right: 0;
}

.parameter-control .value-display {
	min-width: 35px;
	font-size: var(--font-xs);
	color: var(--color-text-muted);
	text-align: right;
}

.parameter-control input[type="checkbox"] {
	margin: 0;
}

.parameter-control input[type="range"]:disabled,
button:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.parameter-control.control-disabled label {
	opacity: 0.5;
}

/* Buttons in context menu */
.context-menu button:not(.tab-bar button):not(.collapsible-section-header):not(.step-button):not(.menu-close-btn) {
	display: block;
	width: 100%;
	margin-top: var(--spacing-md);
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	text-align: center;
	cursor: pointer;
	transition: all 0.2s;
}

.context-menu button:not(.tab-bar button):not(.collapsible-section-header):not(.step-button):not(.menu-close-btn):hover {
	background: var(--color-bg-light);
	border-color: var(--color-primary-base);
}

button.delete-btn {
	background: var(--color-danger-base) !important;
	color: var(--color-white);
	border-color: var(--color-danger-base);
	font-weight: bold;
	margin-top: var(--spacing-lg);
}

button.delete-btn:hover {
	background: var(--color-danger-dark) !important;
	border-color: var(--color-danger-dark);
}

/* Centered Context Menu */
.centered-context-menu {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	z-index: var(--z-context-menu);
}

.context-menu.dragging {
	transform: none;
}

label.layer-item,
label.label-eq {
	display: flex;
	align-items: center;
	gap: 6px;
	cursor: pointer;
	padding: var(--spacing-xs) 0;
}

label.layer-item .layer-color-indicator {
	width: 14px;
	height: 14px;
	border-radius: 2px;
	flex-shrink: 0;
}

label.layer-item input[type="checkbox"],
label.label-eq input[type="checkbox"] {
	width: 14px;
	height: 14px;
	margin: 0;
}

label.layer-item span {
	font-size: var(--font-sm);
	line-height: 1;
}


/* ========================================
   COMPACT CONTEXT MENU LAYOUT
   ======================================== */

.context-menu-header-controls {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 8px;
	margin-bottom: var(--spacing-md);
}

.context-menu-header-controls .parameter-control {
	margin-bottom: 0;
}

.context-menu-header-controls label {
	font-size: var(--font-sm);
	min-width: auto;
	margin-right: var(--spacing-xs);
}

.context-menu-header-controls select,
.context-menu-header-controls input[type="text"] {
	font-size: var(--font-sm);
	padding: var(--spacing-xxs) var(--spacing-xs);
}

/* Collapsible sections */
.collapsible-section {
	margin-bottom: var(--spacing-md);
	border: 1px solid var(--color-bg-medium);
	border-radius: var(--border-radius);
	overflow: hidden;
}

.collapsible-section-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-bg-light);
	cursor: pointer;
	user-select: none;
	transition: background 0.2s;
}

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

.collapsible-section-title {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: var(--font-sm);
	font-weight: bold;
	color: var(--color-text-primary);
}

.collapsible-section-title i {
	font-size: var(--font-sm);
	opacity: 0.7;
}

.collapsible-section-toggle {
	font-size: var(--font-xxs);
	color: var(--color-text-muted);
	transition: transform 0.2s;
}

.collapsible-section.expanded .collapsible-section-toggle {
	transform: rotate(90deg);
}

.collapsible-section-content {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.3s ease-out;
	padding: 0 8px;
}

.collapsible-section.expanded .collapsible-section-content {
	max-height: 400px;
	padding: var(--spacing-md);
	transition: max-height 0.3s ease-in;
	overflow-y: auto;
}

/* Ensure consistent parameter control styling inside collapsible sections */
.collapsible-section-content .parameter-control {
	margin-bottom: var(--spacing-sm);
}

.collapsible-section-content .parameter-control label {
	min-width: 55px;
	font-size: var(--font-sm);
}

.collapsible-section-content .parameter-control input[type="range"] {
	margin-right: var(--spacing-sm);
}

.collapsible-section-content .value-display {
	font-size: var(--font-xs);
	min-width: 35px;
}

.spatial-conditional-controls {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm) 0;
}

.spatial-conditional-controls:empty {
	display: none;
}

.spatial-conditional-controls .parameter-control {
	flex: 1 1 auto;
	min-width: 120px;
}

/* Context Menu Text Elements */
.context-menu .help-text {
	font-size: var(--font-sm);
	color: var(--color-text-muted);
	font-style: italic;
	margin: var(--spacing-md) 0;
	padding: var(--spacing-xs) var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-text-muted);
	word-break: break-word;
}

.context-menu .section-title {
	font-size: var(--font-md);
	font-weight: bold;
	color: var(--color-text-primary);
	margin: var(--spacing-md) 0;
	padding-bottom: var(--spacing-xs);
	border-bottom: 1px solid var(--color-bg-light);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* FX Slot Titles */
.fx-slot-title {
	font-size: var(--font-sm);
	font-weight: bold;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-xs) var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-primary-base);
}

/* Custom Color Picker Styles */
.custom-color-picker {
	position: relative;
	display: inline-block;
	width: 60px;
}

.color-picker-selected {
	width: 100%;
	height: 20px;
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	cursor: pointer;
	position: relative;
}

.color-picker-selected::after {
	content: '▼';
	position: absolute;
	right: 5px;
	top: 50%;
	transform: translateY(-50%);
	font-size: var(--font-sm);
	color: var(--color-white);
}

.color-picker-options {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	width: 100%;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	z-index: 1000;
	max-height: 120px;
	overflow-y: auto;
	padding: var(--spacing-xxs);
}

.color-swatch {
	width: 20px;
	height: 20px;
	cursor: pointer;
	margin: var(--spacing-xxs);
	display: inline-block;
	border: 1px solid var(--color-border);
	transition: border-color 0.2s;
}

.color-swatch:hover {
	border-color: var(--color-text-muted);
}

.color-swatch.selected {
	border: 2px solid var(--color-black);
}

.collapsible-section-header.active .collapsible-section-title::before {
	content: '●';
	color: var(--color-accent-teal);
	font-size: var(--font-sm);
	margin-right: var(--spacing-md);
	vertical-align: middle;
	animation: fadeInIndicator 0.5s ease;
}

@keyframes fadeInIndicator {
	from {
		opacity: 0;
		transform: scale(0.5);
	}

	to {
		opacity: 1;
		transform: scale(1);
	}
}

/* Patch Titles */
.patch-title {
	font-size: var(--font-sm);
	font-weight: bold;
	color: var(--color-text-primary);
	margin-bottom: var(--spacing-sm);
	padding: var(--spacing-xs) var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-success-base);
}

/* Info Messages */
.context-menu .info-message {
	font-size: var(--font-sm);
	color: var(--color-text-muted);
	padding: var(--spacing-md);
	margin: var(--spacing-md) 0;
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border: 1px solid var(--color-bg-light);
	text-align: center;
}

/* Warning Messages */
.context-menu .warning-message {
	font-size: var(--font-sm);
	color: var(--color-warning-text);
	padding: var(--spacing-md);
	margin: var(--spacing-md) 0;
	background: var(--color-warning-pale);
	border-radius: var(--border-radius);
	border: 1px solid var(--color-warning-pale);
}

/* ========================================
   SOUND DIALOG (File Manager)
   ======================================== */

#soundDialog {
	display: none;
	position: fixed;
	top: 10%;
	left: 50%;
	transform: translateX(-50%);
	width: 360px;
	max-width: 90vw;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	padding: var(--spacing-10);
	z-index: var(--z-file-manager);
	box-shadow: var(--shadow-lg);
	border-radius: var(--border-radius);
}

#soundDialog h3 {
	margin: var(--spacing-md) 0 var(--spacing-sm) 0;
	font-size: var(--font-base);
	font-weight: bold;
	color: var(--color-text-primary);
}

#soundDialog input[type="file"] {
	width: 100%;
	padding: var(--spacing-sm);
	margin-bottom: var(--spacing-md);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	box-sizing: border-box;
}

#soundDialog input[type="file"]:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

#soundDialog button:not(.menu-close-btn) {
	padding: var(--spacing-sm) var(--spacing-10);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	cursor: pointer;
	transition: all 0.2s;
}

#soundDialog button:not(.menu-close-btn):hover {
	background: var(--color-bg-medium);
	border-color: var(--color-primary-base);
}

#soundDialog .menu-close-btn {
	display: none;
}

/* File upload status and limits */
#uploadStatus,
#limitsInfo {
	font-size: var(--font-sm);
	margin: var(--spacing-md) 0;
	padding: var(--spacing-md);
	border-radius: var(--border-radius);
	background: var(--color-bg-light);
	color: var(--color-text-muted);
}

#uploadStatus {
	background: var(--color-primary-pale);
	color: var(--color-primary-text);
}

/* Server file list and exports list */
#serverList,
#exportsList {
	max-height: 300px;
	overflow-y: auto;
	border: 1px solid var(--color-border);
	padding: var(--spacing-md);
	margin: var(--spacing-md) 0;
	border-radius: var(--border-radius);
	background: var(--color-bg-light);
	font-size: var(--font-lg);
}

#serverList>div,
#exportsList>div {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-xs);
	background: var(--color-white);
	border: 1px solid var(--color-bg-medium);
	border-radius: var(--border-radius);
	font-size: var(--font-md);
}

#serverList>div>div:first-child,
#exportsList>div>div:first-child {
	display: flex;
	align-items: center;
	gap: 8px;
	flex: 1;
	min-width: 0;
}

#serverList>div>span,
#exportsList>div>span {
	flex-shrink: 0;
	margin-left: auto;
	color: var(--color-text-muted);
}

#serverList button:not(.menu-close-btn),
#exportsList button:not(.menu-close-btn) {
	padding: var(--spacing-xs) var(--spacing-md);
	margin: 0;
	font-size: var(--font-sm);
}

/* Delete buttons in file and export lists */
#serverList button[title="Delete file"]:not(.menu-close-btn),
#exportsList button[title="Delete export"]:not(.menu-close-btn) {
	padding: var(--spacing-xxs) var(--spacing-sm);
	background: var(--color-danger-base);
	color: var(--color-white);
	border-color: var(--color-danger-base);
	font-size: var(--font-md);
	min-width: 24px;
	height: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
}

#serverList button[title="Delete file"]:hover,
#exportsList button[title="Delete export"]:hover {
	background: var(--color-danger-dark);
	border-color: var(--color-danger-dark);
}

#serverList span,
#exportsList span {
	margin: 0 var(--spacing-xs);
	color: var(--color-text-muted);
}

/* Progress bar for uploads */
#uploadProgress {
	width: 0%;
	background: var(--color-primary-base);
	height: 100%;
	transition: width 0.3s;
}

.server-list-filename {
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	max-width: 180px;
	display: inline-block;
}

#recordControls {
	margin-bottom: var(--spacing-md);
}

#recordStatus {
	font-size: var(--font-base);
}

/* ========================================
   STREAM TESTING
   ======================================== */

.stream-status {
	padding: var(--spacing-md);
	margin: var(--spacing-md) 0;
	border-radius: var(--border-radius);
	font-size: var(--font-md);
	text-align: center;
	display: none;
}

.stream-status.loading {
	display: block;
	background: var(--color-warning-pale);
	color: var(--color-warning-text);
	border: 1px solid var(--color-warning-pale);
}

.stream-status.playing {
	display: block;
	background: var(--color-success-pale);
	color: var(--color-success-text);
	border: 1px solid var(--color-success-pale);
}

.stream-status.error {
	display: block;
	background: var(--color-danger-pale);
	color: var(--color-danger-text);
	border: 1px solid var(--color-danger-pale);
}

#streamControls {
	margin-bottom: var(--spacing-md);
}

#streamControls .stream-input-row {
	display: flex;
	gap: 8px;
	margin-bottom: 8px;
	align-items: stretch;
}

#streamControls .stream-url-input {
	flex: 1;
	padding: var(--spacing-md) var(--spacing-lg);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	box-sizing: border-box;
}

#streamControls .menu-btn {
	width: auto;
	flex-shrink: 0;
	display: flex;
	align-items: center;
	margin-bottom: 0;
}

/* Stream URL status indicator */
.stream-status-inline {
	font-size: var(--font-xs);
	padding: var(--spacing-xxs) var(--spacing-sm);
	margin-top: var(--spacing-xs);
	border-radius: 2px;
	display: inline-block;
}

.stream-status-inline.loading {
	background: var(--color-warning-pale);
	color: var(--color-warning-text);
}

.stream-status-inline.ready {
	background: var(--color-success-pale);
	color: var(--color-success-text);
}

.stream-status-inline.error {
	background: var(--color-danger-pale);
	color: var(--color-danger-text);
}

.stream-status-display {
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-md);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	text-align: center;
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
}

.stream-status-display.stopped {
	background: var(--color-bg-light);
	color: var(--color-text-muted);
}

.stream-status-display.loading {
	background: var(--color-warning-pale);
	color: var(--color-warning-text);
	border-color: var(--color-warning-pale);
}

.stream-status-display.ready {
	background: var(--color-primary-pale);
	color: var(--color-primary-text);
	border-color: var(--color-primary-pale);
}

.stream-status-display.playing {
	background: var(--color-success-pale);
	color: var(--color-success-text);
	border-color: var(--color-success-pale);
}

.stream-status-display.error {
	background: var(--color-danger-pale);
	color: var(--color-danger-text);
	border-color: var(--color-danger-pale);
}

.stream-button-container {
	display: flex;
	gap: 0;
	margin-bottom: var(--spacing-md);
}

.stream-button-container button {
	margin: 0 !important;
}

/* INTERFACE */

.status-indicator {
	padding: var(--spacing-md);
	margin: var(--spacing-md) 0;
	font-size: var(--font-base);
	font-weight: bold;
	text-align: center;
}

/* GRID MODE */

.grid-mode-toggle {
	display: flex;
	gap: 8px;
	justify-content: center;
	margin-bottom: var(--spacing-md);
	padding: 0 8px;
}

.grid-mode-toggle button {
	flex: 1;
	padding: var(--spacing-sm) var(--spacing-lg);
	font-size: var(--font-md);
	color: var(--color-text-primary);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
	transition: all 0.2s;
}

.grid-mode-toggle button.btn-primary {
	background: var(--color-primary-base) !important;
	color: var(--color-white);
	border-color: var(--color-primary-dark);
}

.grid-mode-toggle button.btn-secondary {
	background: var(--color-bg-light) !important;
	color: var(--color-text-muted);
	border-color: var(--color-border);
}

.grid-mode-toggle button:hover {
	opacity: 0.9;
}

.grid-mode-info {
	text-align: center;
	font-size: var(--font-sm);
	padding: var(--spacing-md);
	background: var(--color-primary-pale);
	border-radius: var(--border-radius);
	margin-bottom: var(--spacing-md);
	color: var(--color-primary-text);
}

.piano-key.has-sample {}

.piano-key.has-sample.white-key {}

.piano-key.has-sample.black-key {}

.grid-sample-indicator {
	position: absolute;
	bottom: 16px;
	font-size: var(--font-xxs);
	color: var(--color-success-base);
}

.black-key .grid-sample-indicator {
	color: var(--color-success-base);
}

/* KEYBOARD */

.keyboard-section {
	padding: var(--spacing-md) 0;
}

.keyboard-octave-control {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	margin-bottom: var(--spacing-lg);
	padding: var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
}

.keyboard-octave-label {
	font-size: var(--font-sm);
	font-weight: bold;
	margin-right: var(--spacing-md);
}

.keyboard-octave-btn {
	padding: var(--spacing-xs) var(--spacing-md);
	font-size: var(--font-base);
	margin-top: 0 !important;
}

.octave-display {
	min-width: 24px;
	text-align: center;
	font-size: var(--font-base);
	font-weight: bold;
	color: var(--color-primary-base);
}

.keyboard-clear-btn {
	margin-top: var(--spacing-md);
	width: 100%;
}

.piano-keyboard {
	display: flex;
	flex-wrap: wrap;
	gap: 2px;
	padding: var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	justify-content: center;
}

.piano-key {
	position: relative;
	cursor: pointer;
	user-select: none;
	border-radius: var(--border-radius);
	transition: all 0.1s ease;
	display: flex;
	align-items: flex-end;
	justify-content: center;
	padding-bottom: var(--spacing-xs);
}

.piano-key:active {
	transform: scale(0.95);
}

.white-key {
	width: 21px;
	height: 80px;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	box-shadow: 0 2px 4px var(--color-overlay-light);
}

.white-key:hover {
	background: var(--color-bg-medium);
}

.white-key.selected {
	background: var(--color-primary-base);
	border-color: var(--color-primary-dark);
}

.white-key.selected .key-label {
	color: var(--color-white);
}

.black-key {
	width: 20px;
	height: 50px;
	background: var(--color-text-primary);
	border: 1px solid var(--color-black);
	box-shadow: 0 2px 4px var(--color-overlay-medium);
	margin: 0 -13px;
	z-index: 1;
}

.black-key:hover {
	background: var(--color-text-muted);
}

.black-key.selected {
	background: var(--color-primary-dark);
	border-color: var(--color-primary-dark);
}

.black-key .key-label {
	color: var(--color-white);
}

.key-label {
	font-size: var(--font-xxs);
	font-weight: 500;
	color: var(--color-text-primary);
	pointer-events: none;
}

/* ========================================
   MODAL SYSTEM
   ======================================== */

.modal-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-overlay-dark);
	z-index: var(--z-modal-overlay);
}

.modal-dialog {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background: var(--color-white);
	padding: var(--spacing-xxl);
	border-radius: var(--border-radius-xl);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-modal-dialog);
	min-width: 300px;
	max-width: 90vw;
}

.modal-header h3 {
	margin: 0 0 10px 0;
	font-size: 18px;
}

.modal-body p {
	line-height: 1.4;
}

.modal-footer {
	display: flex;
	gap: var(--spacing-md);
	justify-content: flex-end;
	margin-top: var(--spacing-10);
}

.modal-footer-equal {
	gap: var(--spacing-md);
}

.modal-footer-equal > button {
	flex: 1;
}

.modal-btn {
	padding: var(--spacing-md) var(--spacing-xl);
	border: none;
	border-radius: var(--border-radius);
	cursor: pointer;
	font-size: var(--font-lg);
}

.import-title-detail {
	font-size: var(--font-md);
	color: var(--color-text-muted);
	font-weight: normal;
}

.import-option-group {
	margin-bottom: var(--spacing-lg);
}

.import-option-label {
	display: block;
	font-weight: 600;
	margin-bottom: var(--spacing-sm);
	color: var(--color-text-primary);
}

.import-radio-group {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
}

.import-radio {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm) var(--spacing-md);
	border-radius: var(--border-radius);
	cursor: pointer;
	transition: background-color 0.15s;
}

.import-radio:hover {
	background: var(--color-bg-medium);
}

.import-radio input[type="radio"] {
	margin: 0;
	accent-color: var(--color-primary-base);
}

.import-radio span:first-of-type {
	flex: 1;
}

.import-radio-desc {
	font-size: var(--font-sm);
	color: var(--color-text-muted);
}

.progress-bar-container {
	width: 100%;
	background: var(--color-bg-medium);
	height: 8px;
	border-radius: var(--border-radius);
	margin-top: var(--spacing-xs);
	overflow: hidden;
}

.progress-bar-fill {
	width: 0%;
	background: var(--color-primary-base);
	height: 100%;
	transition: width 0.3s;
}

.file-info-text {
	font-size: var(--font-md);
	margin: var(--spacing-xs) 0;
	color: var(--color-text-muted);
}

.pitch-slider {
	flex: 1;
}

.pitch-display {
	min-width: 50px;
	text-align: right;
}

/* Tab content styles */
.tab-content {
	display: none;
}

.tab-content.active {
	display: block;
}

/* ========================================
   FX, PATCH, AND LAYER STYLES (All Tabs)
   ======================================== */

.modulation-dropdowns {
	display: flex;
	gap: 8px;
	margin-bottom: var(--spacing-md);
}

.modulation-dropdowns select {
	flex: 1;
	min-width: 0;
	/* Allow flex shrinking */
}

/* Patch modulation styles */
.patch-item {
	margin-bottom: var(--spacing-lg);
	padding: var(--spacing-md);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
}

.patch-select {
	width: 100%;
	margin-bottom: var(--spacing-xs);
	padding: var(--spacing-xs);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-xs);
	background: var(--color-white);
}

/* Layer assignment styles */
.layer-color-indicator {
	width: 8px;
	height: 8px;
	border-radius: 1px;
	flex-shrink: 0;
}

.user-layer-solo,
.user-layer-mute {
	width: 24px;
	height: 24px;
	padding: 0;
	font-size: var(--font-sm);
	font-weight: bold;
	border: 1px solid var(--color-text-muted);
	background: var(--color-text-primary);
	color: var(--color-text-muted);
	cursor: pointer;
	border-radius: var(--border-radius);
	transition: all 0.2s;
}

.user-layer-solo:hover {
	background: var(--color-text-primary);
	border-color: var(--color-warning-base);
	color: var(--color-warning-base);
}

.user-layer-solo.active {
	background: var(--color-warning-base);
	border-color: var(--color-warning-base);
	color: var(--color-black);
}

.user-layer-mute:hover {
	background: var(--color-text-primary);
	border-color: var(--color-danger-base);
	color: var(--color-danger-base);
}

.user-layer-mute.active {
	background: var(--color-danger-base);
	border-color: var(--color-danger-base);
	color: var(--color-white);
}

.user-layer-fx {
	width: 24px;
	height: 24px;
	padding: 0;
	font-size: var(--font-sm);
	border: 1px solid var(--color-text-muted);
	background: var(--color-text-primary);
	color: var(--color-text-muted);
	cursor: pointer;
	border-radius: var(--border-radius);
	transition: all 0.2s;
}

.user-layer-fx:hover {
	background: var(--color-text-primary);
	border-color: var(--color-primary-base);
	color: var(--color-primary-base);
}

/* ========================================
	   LOCATION STATUS
	   ======================================== */

#locationStatus,
#accuracyDisplay {
	position: fixed;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--color-overlay-darker);
	color: var(--color-white);
	padding: var(--spacing-md) var(--spacing-xl);
	border-radius: 20px;
	font-size: var(--font-base);
	font-weight: 500;
	z-index: 1000;
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	opacity: 0;
	transition: opacity 0.3s ease, transform 0.3s ease;
	pointer-events: none;
	white-space: nowrap;
}

#accuracyDisplay {
	top: 55px;
}

/* Geolocation status colors for user icon */
.userIcon.geolocation-status-initial {
	background-color: var(--color-text-muted);
	transition: background-color 0.5s ease;
}

.userIcon.geolocation-status-searching {
	background-color: var(--color-accent-orange);
	animation: pulse-search 2s infinite;
	transition: background-color 0.5s ease;
}

.userIcon.geolocation-status-active {
	background-color: var(--color-success-base);
	transition: background-color 0.5s ease;
}

.userIcon.geolocation-status-error {
	background-color: var(--color-danger-base);
	transition: background-color 0.5s ease;
}

.userIcon.geolocation-status-disabled {
	background-color: var(--color-text-muted);
	transition: background-color 0.5s ease;
}

/* User direction simulation styles */
.user-direction-container {
	margin-top: var(--spacing-lg);
	padding-top: var(--spacing-lg);
	border-top: 1px solid var(--color-bg-medium);
}

.direction-arrow-container {
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: var(--spacing-md);
	height: 30px;
}

#direction-indicator-wrapper {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	transform-origin: center center;
	transition: transform 0.05s linear;
	z-index: 1;
}

.direction-arrow-svg {
	position: absolute;
	top: -8px;
	left: 50%;
	transform: translateX(-50%);
	width: 14px;
	height: 14px;
	fill: var(--color-accent-orange);
}

.direction-controls-wrapper {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-top: var(--spacing-sm);
}

.direction-slider {
	flex-grow: 1;
	margin: 0;
}

.direction-arrow {
	font-size: var(--font-lg);
	color: var(--color-primary-base);
	transition: transform 0.1s linear;
	flex-shrink: 0;
}

.degree-display {
	font-family: monospace;
	font-size: var(--font-base);
	width: 40px;
	text-align: right;
	flex-shrink: 0;
}

.switch-container,
.user-direction-container,
.user-menu-section {
	padding-top: var(--spacing-10);
	border-top: 1px solid var(--color-bg-medium);
	font-size: var(--font-base);
	margin-bottom: var(--spacing-md);
}

.user-menu-section-label {
	display: block;
	font-weight: bold;
	margin-bottom: var(--spacing-xs);
}

/* Toggle Switch for HRTF */
.switch-container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--spacing-md);
}

.switch {
	position: relative;
	display: inline-block;
	width: 34px;
	height: 20px;
}

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

.slider {
	position: absolute;
	cursor: pointer;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background-color: var(--color-border);
	transition: .4s;
}

.slider:before {
	position: absolute;
	content: "";
	height: 12px;
	width: 12px;
	left: 4px;
	bottom: 4px;
	background-color: var(--color-white);
	transition: .4s;
}

.panning-mode-selector {
	font-size: var(--font-base);
}

.panning-mode-selector label {
	margin-left: var(--spacing-10);
}

input:checked+.slider {
	background-color: var(--color-primary-base);
}

input:focus+.slider {
	box-shadow: 0 0 1px var(--color-primary-base);
}

input:checked+.slider:before {
	transform: translateX(14px);
}

.slider.round {
	border-radius: 20px;
}

.slider.round:before {
	border-radius: 50%;
}

.ambisonic-controls-container {
	padding: var(--spacing-10) 0;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ambisonic-parameter-control {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: var(--spacing-md);
	font-size: var(--font-sm);
}

.ambisonic-controls-container label {
	font-weight: 500;
	flex: 0 0 100px;
}

.ambisonic-control-wrapper {
	display: flex;
	align-items: center;
	gap: 10px;
	flex: 1;
}

.ambisonic-parameter-slider {
	flex: 1;
	margin: 0;
}

.ambisonic-value-display {
	color: var(--color-success-base);
	font-weight: 600;
	font-family: monospace;
	min-width: 50px;
	text-align: right;
}

.ambisonic-select {
	background: rgba(255, 255, 255, 0.1);
	border: 1px solid rgba(255, 255, 255, 0.2);
	padding: var(--spacing-xs) var(--spacing-md);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	cursor: pointer;
	transition: all 0.2s;
}

.ambisonic-select:hover {
	background: rgba(255, 255, 255, 0.15);
}

.ambisonic-select:focus {
	outline: none;
	border-color: var(--color-primary-base);
}

.audio-smoothing-controls {
	padding: var(--spacing-sm) 0;
}

.audio-smoothing-controls .parameter-control {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-xs);
	margin-bottom: var(--spacing-md);
}

.audio-smoothing-controls .parameter-control label {
	font-size: var(--font-sm);
	color: var(--color-text-primary);
	margin: 0;
}

.audio-smoothing-controls .control-wrapper {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

.audio-smoothing-controls .parameter-slider {
	flex: 1;
	margin: 0;
}

.audio-smoothing-controls .value-display {
	color: var(--color-success-base);
	font-weight: 600;
	font-family: monospace;
	min-width: 40px;
	text-align: right;
	font-size: var(--font-sm);
}

.audio-smoothing-hint {
	margin-top: var(--spacing-sm);
	padding: var(--spacing-xs);
	background: rgba(255, 255, 255, 0.05);
	border-radius: var(--border-radius);
	color: var(--color-text-muted);
	line-height: 1.4;
}

/* Pulsing animation for searching state */
@keyframes pulse-search {
	0% {
		background-color: var(--color-accent-orange);
	}

	50% {
		background-color: var(--color-accent-orange);
	}

	100% {
		background-color: var(--color-accent-orange);
	}
}

/* ========================================
   DISTANCE SEQUENCER
   ======================================== */

.track-synth-settings-btn {
	margin-top: 0 !important;
	color: var(--color-text-muted);
	background: transparent;
	border-color: transparent;
}

.track-synth-settings-btn:hover:not(:disabled) {
	color: var(--color-text-primary);
	background: transparent;
	border-color: transparent;
}

.track-header-compact {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: var(--spacing-md);
}

.track-octave-mode-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: var(--spacing-xxs);
}

.track-octave-controls {
	display: flex;
	gap: 8px;
	align-items: center;
}

.track-mode-selector {
	display: flex;
	gap: 6px;
}

.mode-box {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: var(--spacing-xs) var(--spacing-md);
	border-radius: var(--border-radius);
	cursor: pointer;
	font-size: var(--font-sm);
	font-weight: 500;
	border: 2px solid var(--color-transparent);
	transition: all 0.15s;
}

.mode-box.note-mode {
	background: var(--color-primary-base);
	color: var(--color-white);
}

.mode-box.sustain-mode {
	background: var(--color-primary-light);
	color: var(--color-white);
}

.mode-box:hover {
	opacity: 0.8;
}

.mode-box.active {
	border-color: var(--color-success-base);
}

.sequencer-controls-row {
	display: grid;
	grid-template-columns: auto auto auto;
	gap: 12px;
	align-items: center;
	margin-bottom: var(--spacing-xxs);
}

.sequencer-controls-row .parameter-control {
	display: flex;
	align-items: center;
	gap: 6px;
	margin-bottom: var(--spacing-xxs);
}

.sequencer-controls-row .parameter-control label {
	min-width: 0;
	margin-right: 0;
}

.sequencer-slider-row {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: var(--spacing-md);
	font-size: var(--font-sm);
}

.sequencer-slider-row label {
	flex-shrink: 0;
}

.sequencer-slider-row input[type="range"] {
	flex: 1;
}

.sequencer-slider-row .value-display {
	min-width: 40px;
	text-align: right;
}

.sequencers-list {
	margin-top: var(--spacing-md);
}

.sequencer-list-item {
	padding: var(--spacing-sm) var(--spacing-md);
	margin-bottom: var(--spacing-xs);
	background: var(--color-overlay-faint);
	border-radius: var(--border-radius);
	cursor: pointer;
	border-left: 3px solid var(--color-primary-base);
	display: flex;
	align-items: center;
	justify-content: space-between;
	transition: background 0.2s;
}

.sequencer-list-item:hover {
	background: rgba(0, 123, 255, 0.1) !important;
}

.sequencer-list-item span {
	font-size: var(--font-md);
}

.sequencer-status {
	margin-top: var(--spacing-10);
	padding: var(--spacing-md);
	background: var(--color-bg-medium);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	line-height: 1.4;
}

.sequencer-status strong {
	color: var(--color-primary-base);
}

.tracks-container {
	max-height: 310px;
	overflow-y: auto;
	margin-bottom: var(--spacing-xs);
}

.track-item {
	margin-bottom: var(--spacing-lg);
	padding: var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-primary-base);
}

.track-header-compact {
	display: flex;
	align-items: center;
	gap: 8px;
}

.track-header-compact .track-title {
	font-size: var(--font-md);
	min-width: 50px;
}

.track-header-compact select {
	font-size: var(--font-sm);
	padding: var(--spacing-xxs) var(--spacing-xs);
	flex: 1;
	min-width: 60px;
}

.track-header-compact .track-delete-btn {
	color: var(--color-danger-base);
	font-size: 18px;
	font-weight: bold;
	padding: 0;
	width: 10% !important;
	line-height: 1;
	flex-shrink: 0;
	background: var(--color-transparent);
	border: none;
	cursor: pointer;
	margin-left: 60px;
	margin-top: 0 !important;
}

.track-header-compact .track-delete-btn:hover {
	color: var(--color-danger-base);
	background: rgba(220, 53, 69, 0.1);
	border-radius: var(--border-radius);
}

.track-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--spacing-md);
}

.track-title {
	font-size: var(--font-md);
}

.track-delete-btn {
	padding: var(--spacing-xxs) var(--spacing-sm);
	font-size: var(--font-sm);
}

.track-instrument-group {
	margin-bottom: var(--spacing-sm);
}

.track-instrument-label {
	font-size: var(--font-sm);
}

.track-instrument-select {
	font-size: var(--font-sm);
}

.track-note-group {
	margin-top: var(--spacing-sm);
}

.track-note-label {
	font-size: var(--font-sm);
}

.track-note-display {
	font-size: var(--font-xs);
}

.track-octave-controls {
	display: flex;
	gap: 8px;
	align-items: center;
	margin-bottom: var(--spacing-md);
}

.octave-label {
	font-size: var(--font-sm);
	font-weight: bold;
	min-width: 24px;
	text-align: center;
	padding-top: var(--spacing-sm);
}

.piano-roll-wrapper {
	margin-bottom: var(--spacing-md);
	overflow-x: auto;
}

.piano-roll {
	display: grid;
	gap: 1px;
	background: var(--color-border);
	border: 1px solid var(--color-border);
	width: fit-content;
}

.piano-cell {
	background: var(--color-bg-light);
	cursor: pointer;
	transition: all 0.1s;
	min-width: 20px;
	height: 12px;
}

.piano-cell.chromatic {
	background: var(--color-bg-medium);
}

.piano-cell:hover {
	filter: brightness(0.95);
}

.piano-cell.note {
	background: var(--color-primary-base);
}

.piano-cell.sustain {
	background: var(--color-primary-light);
}

.piano-cell.velocity-zero {
	background: var(--color-text-muted) !important;
	opacity: 0.4 !important;
}

.piano-cell.note[data-velocity-level="0"] { opacity: 0.15; }
.piano-cell.note[data-velocity-level="1"] { opacity: 0.25; }
.piano-cell.note[data-velocity-level="2"] { opacity: 0.35; }
.piano-cell.note[data-velocity-level="3"] { opacity: 0.45; }
.piano-cell.note[data-velocity-level="4"] { opacity: 0.55; }
.piano-cell.note[data-velocity-level="5"] { opacity: 0.60; }
.piano-cell.note[data-velocity-level="6"] { opacity: 0.65; }
.piano-cell.note[data-velocity-level="7"] { opacity: 0.70; }
.piano-cell.note[data-velocity-level="8"] { opacity: 0.77; }
.piano-cell.note[data-velocity-level="9"] { opacity: 0.84; }
.piano-cell.note[data-velocity-level="10"] { opacity: 0.91; }
.piano-cell.note[data-velocity-level="11"] { opacity: 0.95; }
.piano-cell.note[data-velocity-level="12"] { opacity: 1.0; }

.piano-cell.sustain[data-velocity-level="0"] { opacity: 0.15; }
.piano-cell.sustain[data-velocity-level="1"] { opacity: 0.25; }
.piano-cell.sustain[data-velocity-level="2"] { opacity: 0.35; }
.piano-cell.sustain[data-velocity-level="3"] { opacity: 0.45; }
.piano-cell.sustain[data-velocity-level="4"] { opacity: 0.55; }
.piano-cell.sustain[data-velocity-level="5"] { opacity: 0.60; }
.piano-cell.sustain[data-velocity-level="6"] { opacity: 0.65; }
.piano-cell.sustain[data-velocity-level="7"] { opacity: 0.70; }
.piano-cell.sustain[data-velocity-level="8"] { opacity: 0.77; }
.piano-cell.sustain[data-velocity-level="9"] { opacity: 0.84; }
.piano-cell.sustain[data-velocity-level="10"] { opacity: 0.91; }
.piano-cell.sustain[data-velocity-level="11"] { opacity: 0.95; }
.piano-cell.sustain[data-velocity-level="12"] { opacity: 1.0; }

.step-indicator-row {
	display: grid;
	gap: 1px;
	background: var(--color-border);
	border: 1px solid var(--color-border);
	width: fit-content;
}

.step-indicator-dot {
	min-width: 20px;
	height: 4px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.step-indicator-dot::before {
	content: '';
	width: 4px;
	height: 4px;
	border-radius: 50%;
	background: var(--color-transparent);
	transition: background 0.1s;
}

.step-indicator-dot.active::before {
	background: var(--color-success-base);
}

.offset-meter-display {
	font-size: var(--font-sm);
}

.velocity-panel {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	padding: var(--spacing-sm);
	background: var(--color-bg-medium);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	margin-top: var(--spacing-sm);
}

.velocity-panel label {
	font-size: var(--font-sm);
	font-weight: 500;
	min-width: 60px;
}

.velocity-panel .velocity-slider {
	flex: 1;
	min-width: 100px;
}

.velocity-panel .velocity-value {
	min-width: 30px;
	text-align: center;
	font-family: monospace;
	font-size: var(--font-sm);
	cursor: pointer;
	padding: 2px 6px;
	border-radius: var(--border-radius);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
}

.velocity-panel .velocity-value:hover {
	background: var(--color-bg-hover);
}

.velocity-panel .velocity-help {
	font-size: var(--font-xs);
	color: var(--color-text-secondary);
	font-style: italic;
}

.tracks-container .parameter-control select {
	margin-right: var(--spacing-10);
}

.tracks-container .parameter-control {
	margin-bottom: 0;
}

.track-steps-control {
	display: flex;
	gap: 4px;
	align-items: center;
}

.track-steps-control input[type="number"] {
	width: 50px;
	padding: var(--spacing-xs);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	text-align: center;
}

.btn-icon-small {
	padding: var(--spacing-xxs) var(--spacing-sm);
	font-size: var(--font-base);
	background: var(--color-text-primary);
	color: var(--color-white);
	border: 1px solid var(--color-text-muted);
	border-radius: var(--border-radius);
	cursor: pointer;
	transition: all 0.15s;
}

.track-steps-control .btn-icon-small {
	padding: var(--spacing-xs) var(--spacing-md) !important;
	margin-top: 0 !important;
	color: var(--color-text-primary) !important;
}

.btn-icon-small:hover:not(:disabled) {
	background: var(--color-text-muted);
}

/* ========================================
   PATH ZONE SELECTION (SEQUENCER)
   ======================================== */

.path-checkbox-list {
	max-height: 150px;
	overflow-y: auto;
	border: 1px solid var(--color-text-primary);
	padding: var(--spacing-sm);
	margin-top: var(--spacing-xs);
	background: var(--color-white);
	border-radius: var(--border-radius);
}

.path-selection-row {
	display: flex;
	align-items: center;
	gap: 6px;
	margin-bottom: var(--spacing-xxs);
	padding: var(--spacing-xs);
	border-radius: var(--border-radius);
	transition: background 0.2s;
}

.path-selection-row:hover {
	background: var(--color-bg-light);
}

.path-selection-row input[type="checkbox"] {
	flex-shrink: 0;
	cursor: pointer;
}

.path-selection-label {
	flex: 1;
	font-size: var(--font-sm);
	cursor: pointer;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.path-zone-select {
	font-size: var(--font-sm);
	padding: var(--spacing-xxs) var(--spacing-xs);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	background: var(--color-white);
	cursor: pointer;
	transition: border-color 0.2s;
}

.path-zone-select {
	width: 80px;
	flex-shrink: 0;
}

.path-zone-select:disabled {
	background: var(--color-bg-medium);
	color: var(--color-text-muted);
	cursor: not-allowed;
}

.path-zone-select:hover:not(:disabled) {
	border-color: var(--color-primary-base);
}

/* ========================================
	   UTILITY CLASSES
	   ======================================== */

.dimmed-layer {
	opacity: 0.3;
	pointer-events: none;
}

.handle-visible {
	opacity: 0.8;
}

.handle-dimmed {
	opacity: 0.3;
}

.slider-flash {
	opacity: 0.5;
	transition: opacity 0.15s;
}

.menu-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-transparent);
	z-index: var(--z-menu-overlay);
}

.custom-div-icon,
.sound-label-marker,
.radius-handle-marker,
.sound-handle {
	background: var(--color-transparent) !important;
	border: none !important;
}

/* Parameter control variations */
.parameter-control.small {
	font-size: var(--font-sm);
}

.parameter-control.small label {
	font-size: var(--font-sm);
	min-width: 50px;
}

.parameter-control.small .value-display {
	font-size: var(--font-xs);
	min-width: 35px;
}

/* ========================================
   FREQUENCY/PITCH MODE INDICATORS
   ======================================== */

.parameter-control label.pitch-active {
	color: var(--color-primary-base);
	font-weight: bold;
}

.parameter-control label.pitch-inactive {
	color: var(--color-text-muted);
	font-style: italic;
}

.parameter-control label.frequency-active {
	color: var(--color-primary-base);
	font-weight: bold;
}

.parameter-control label.frequency-inactive {
	color: var(--color-text-muted);
}

.simulation-controls-container {
	position: fixed;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--color-white);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	padding: var(--spacing-md) var(--spacing-xl);
	border-radius: var(--border-radius);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-side-menu-toggle);
	display: none;
	align-items: center;
	gap: 20px;
	font-size: var(--font-base);
}

/* SIMULATION CONTROL */

.simulation-controls-container.active {
	display: flex;
}

.simulation-info {
	display: flex;
	align-items: center;
	gap: 8px;
	font-weight: 500;
}

.simulation-speed {
	display: flex;
	align-items: center;
	gap: 6px;
}

#speedSelect {
	padding: var(--spacing-xs);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
}

.simulation-cancel-btn {
	background: var(--color-danger-base);
	color: var(--color-white);
	border: none;
	padding: var(--spacing-sm) var(--spacing-lg);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	font-weight: bold;
}

#oscStatus {
	font-size: var(--font-base);
	margin-bottom: var(--spacing-sm);
}

.osc-status-connected {
	color: var(--color-success-base);
}

.osc-status-disconnected {
	color: var(--color-danger-base);
}

.osc-message {
	font-family: monospace;
	font-size: var(--font-md);
	color: var(--color-text-muted);
}

/* ========================================
   PARAMETER CUSTOMIZER
   ======================================== */

.parameter-customizer-modal {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background: var(--color-white);
	border-radius: var(--border-radius-xl);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-modal-dialog);
	width: 90vw;
	max-width: 800px;
	max-height: 90vh;
	display: flex;
	flex-direction: column;
}

.parameter-customizer-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: var(--spacing-xl) var(--spacing-xxl);
	border-bottom: 1px solid var(--color-border);
}

.parameter-customizer-header h2 {
	margin: 0;
	font-size: 18px;
	color: var(--color-text-primary);
}

.parameter-customizer-header .close-btn {
	background: none;
	border: none;
	font-size: 28px;
	cursor: pointer;
	color: var(--color-text-muted);
	padding: 0;
	width: 30px;
	height: 30px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--border-radius);
	transition: var(--transition);
}

.parameter-customizer-header .close-btn:hover {
	background: var(--color-bg-medium);
	color: var(--color-text-primary);
}

.parameter-customizer-controls {
	display: flex;
	gap: 12px;
	padding: var(--spacing-lg) var(--spacing-xxl);
	border-bottom: 1px solid var(--color-border);
	background: var(--color-bg-light);
}

.parameter-customizer-controls .search-input {
	flex: 1;
	padding: var(--spacing-md) var(--spacing-lg);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
}

.parameter-customizer-controls .search-input:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

.parameter-customizer-controls .filter-toggle {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: var(--font-base);
	cursor: pointer;
	user-select: none;
	white-space: nowrap;
}

.parameter-customizer-controls .filter-toggle input {
	cursor: pointer;
}

.parameter-list {
	flex: 1;
	overflow-y: auto;
	padding: var(--spacing-lg) var(--spacing-xxl);
}

.parameter-category {
	margin-bottom: var(--spacing-xl);
}

.category-header {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: var(--spacing-md) 0;
	cursor: pointer;
	user-select: none;
}

.category-toggle {
	font-size: var(--font-base);
	color: var(--color-text-muted);
	width: 16px;
	text-align: center;
}

.category-toggle.collapsed {
	color: var(--color-text-muted);
}

.category-title {
	font-weight: bold;
	font-size: var(--font-md);
	color: var(--color-text-primary);
}

.category-params {
	padding-left: 24px;
}

.subcategory-header {
	font-weight: 600;
	font-size: var(--font-md);
	color: var(--color-text-primary);
	margin-top: var(--spacing-lg);
	margin-bottom: var(--spacing-md);
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-bg-medium);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-primary-base);
}

.subcategory-header:first-child {
	margin-top: 0;
}

.parameter-row {
	padding: var(--spacing-lg);
	margin-bottom: var(--spacing-md);
	background: var(--color-bg-light);
	border-radius: var(--border-radius);
	border-left: 3px solid var(--color-border);
	transition: var(--transition);
}

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

.param-label {
	font-weight: 500;
	font-size: var(--font-base);
	margin-bottom: var(--spacing-xs);
	color: var(--color-text-primary);
	display: flex;
	align-items: center;
	gap: 6px;
}

.param-label.customized {
	color: var(--color-primary-base);
	font-weight: 600;
}

.param-description {
	font-size: var(--font-sm);
	color: var(--color-text-muted);
	font-style: italic;
	margin-bottom: var(--spacing-sm);
	padding-left: var(--spacing-xxs);
	line-height: 1.3;
}

.customized-badge {
	color: var(--color-primary-base);
	font-size: 16px;
}

.param-defaults {
	font-size: var(--font-sm);
	color: var(--color-text-muted);
	margin-bottom: var(--spacing-md);
}

.default-label {
	font-weight: 500;
}

.param-inputs {
	display: flex;
	gap: 12px;
	align-items: flex-end;
	flex-wrap: wrap;
}

.input-group {
	display: flex;
	flex-direction: column;
	gap: 4px;
	flex: 1;
	min-width: 80px;
}

.input-group label {
	font-size: var(--font-sm);
	font-weight: 500;
	color: var(--color-text-primary);
}

.input-group input[type="number"] {
	padding: var(--spacing-sm) var(--spacing-md);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-base);
	width: 100%;
}

.input-group input[type="number"]:focus {
	outline: none;
	border-color: var(--color-primary-base);
	box-shadow: var(--shadow-xs);
}

.reset-btn {
	padding: var(--spacing-sm) var(--spacing-lg);
	background: var(--color-danger-base);
	color: var(--color-white);
	border: none;
	border-radius: var(--border-radius);
	cursor: pointer;
	font-size: var(--font-sm);
	font-weight: 500;
	transition: var(--transition);
	align-self: flex-end;
	margin: var(--spacing-sm) var(--spacing-lg);
}

.reset-btn:hover {
	background: var(--color-danger-dark);
}

.param-error {
	display: none;
	margin-top: var(--spacing-md);
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-danger-pale);
	color: var(--color-danger-text);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	border-left: 3px solid var(--color-danger-base);
}

.parameter-customizer-footer {
	display: flex;
	justify-content: space-between;
	padding: var(--spacing-xl) var(--spacing-xxl);
	border-top: 1px solid var(--color-border);
	background: var(--color-bg-light);
}

.parameter-customizer-footer button {
	padding: var(--spacing-md) var(--spacing-xl);
	border: none;
	border-radius: var(--border-radius);
	cursor: pointer;
	font-size: var(--font-lg);
	font-weight: 500;
	transition: var(--transition);
}

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

.btn-primary:hover {
	background: var(--color-primary-dark);
}

.btn-secondary {
	background: var(--color-bg-medium);
	color: var(--color-text-primary);
	border: 1px solid var(--color-border);
}

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

/* ========================================
   SELECTION UI
   ======================================== */

.selection-quick-actions {
	display: flex;
	gap: var(--spacing-xs);
	margin-top: var(--spacing-sm);
}

.selection-quick-actions .menu-btn {
	flex: 1;
	justify-content: center;
}

.selection-layers-list {
	max-height: 200px;
	overflow-y: auto;
}

.selection-layer-item {
	display: flex;
	flex-direction: column;
	padding: var(--spacing-sm);
	margin-bottom: var(--spacing-xs);
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
}

.selection-layer-item.layer-selected {
	background: var(--color-primary-light);
	border-color: var(--color-primary);
}

.selection-layer-header {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	cursor: pointer;
}

.selection-layer-color {
	width: 12px;
	height: 12px;
	border: 1px solid var(--color-overlay-medium);
	border-radius: 2px;
	flex-shrink: 0;
}

.selection-layer-name {
	flex: 1;
	font-size: var(--font-base);
	font-weight: 500;
}

.selection-layer-expand {
	font-size: var(--font-xs);
	opacity: 0.5;
	transition: transform 0.2s;
}

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

.selection-layer-types {
	display: none;
	padding-top: var(--spacing-sm);
	padding-left: var(--spacing-xl);
	flex-direction: column;
	gap: var(--spacing-xxs);
}

.selection-layer-item.expanded .selection-layer-types {
	display: flex;
}

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

.selection-actions-container {
	position: fixed;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--color-white);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	padding: var(--spacing-md) var(--spacing-xl);
	border-radius: var(--border-radius);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-side-menu-toggle);
	display: none;
	align-items: center;
	gap: 16px;
	font-size: var(--font-base);
}

.selection-actions-container.active {
	display: flex;
}

.selection-info {
	display: flex;
	align-items: center;
	gap: 8px;
	font-weight: 500;
	color: var(--color-primary-base);
}

.selection-actions {
	display: flex;
	gap: var(--spacing-sm);
}

.selection-action-btn {
	padding: var(--spacing-sm) var(--spacing-md);
	background: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	font-size: var(--font-sm);
	cursor: pointer;
	transition: all 0.2s;
}

.selection-action-btn:hover {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

.selection-action-btn.active {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

.selection-action-danger:hover {
	background: var(--color-danger-base);
	border-color: var(--color-danger-base);
}

.drag-select-rectangle {
	position: absolute;
	border: 2px dashed var(--color-primary-base);
	background: rgba(0, 123, 255, 0.1);
	pointer-events: none;
	z-index: var(--z-side-menu-toggle);
}

.sound-selected .soundIcon {
	animation: selection-pulse 1.5s ease-in-out infinite;
	box-shadow: 0 0 0 3px var(--color-primary-light), 0 0 12px var(--color-primary-base);
}

@keyframes selection-pulse {
	0%, 100% {
		box-shadow: 0 0 0 3px var(--color-primary-light), 0 0 12px var(--color-primary-base);
	}
	50% {
		box-shadow: 0 0 0 5px var(--color-primary-light), 0 0 20px var(--color-primary-base);
	}
}

.path-selected {
	stroke-width: 5 !important;
	filter: drop-shadow(0 0 6px var(--color-primary-base));
}

.path-selected .path-label {
	animation: selection-pulse 1.5s ease-in-out infinite;
}

.path-selected .path-point {
	animation: selection-pulse 1.5s ease-in-out infinite;
	transform: scale(1.3);
}

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

.drawing-mode {
	cursor: crosshair !important;
}

.drag-select-mode {
	cursor: crosshair !important;
}

.selection-move-mode {
	cursor: move !important;
}

.menu-btn.active {
	background: var(--color-primary-base);
	color: var(--color-white);
	border-color: var(--color-primary-base);
}

.menu-btn.active i {
	opacity: 1;
}

/* ========================================
	   RESPONSIVE ADJUSTMENTS
	   ======================================== */

@media (max-width: 768px) {

	.context-menu,
	.helper-menu,
	.elements-menu,
	.control-menu,
	.sequencing-menu,
	.interface-menu,
	.selection-menu,
	.about-menu,
	#soundDialog,
	.parameter-customizer-modal {
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
		max-height: 100vh;
		border-radius: 0;
		margin: 0;
		transform: none;
		overflow-y: auto;
		box-sizing: border-box;
		width: 100%;
		max-width: 100vw;
	}

	.context-menu-header,
	.helper-menu h3,
	.elements-menu h3,
	.control-menu h3,
	.sequencing-menu h3,
	.interface-menu h3,
	.selection-menu h3,
	.about-menu h3,
	.parameter-customizer-header h2 {
		cursor: default;
	}

	.menu-close-btn,
	.parameter-customizer-header .close-btn {
		font-size: 32px;
		width: 40px;
		height: 33px;
	}

	.tracks-container {
		max-height: none;
	}

	.elements-menu,
	.helper-menu,
	.control-menu,
	.sequencing-menu,
	.interface-menu,
	.selection-menu,
	.about-menu,
	.parameter-customizer-content {
		max-height: none;
	}
}

.shape-creation-menu {
	position: fixed;
	background: var(--color-bg-base);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: 0;
	z-index: 12000;
	display: none;
	box-shadow: var(--shadow-lg);
	min-width: 300px;
}

.shape-creation-menu.active {
	display: block;
}

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

.shape-menu-header h3 {
	margin: 0;
	font-size: var(--font-md);
	font-weight: 600;
}

.shape-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0;
}

.shape-column {
	padding: var(--spacing-sm);
}

.shape-column:first-child {
	border-right: 1px solid var(--color-border);
}

.column-header {
	font-size: var(--font-xs);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin: 0 0 var(--spacing-sm) 0;
	color: var(--color-text-muted);
	display: flex;
	align-items: center;
	gap: var(--spacing-xs);
}

.column-header i {
	font-size: var(--font-sm);
}

.shape-btn {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
	width: 100%;
	padding: var(--spacing-sm) var(--spacing-sm);
	margin-bottom: var(--spacing-xxs);
	background: transparent;
	border: 1px solid transparent;
	border-radius: var(--radius-md);
	color: var(--color-text-base);
	cursor: pointer;
	transition: all 0.15s ease;
	font-size: var(--font-sm);
}

.shape-btn:hover {
	background: var(--color-bg-light);
	border-color: var(--color-border);
}

.shape-btn:active {
	transform: scale(0.98);
}

.shape-btn i {
	width: 18px;
	text-align: center;
	color: var(--color-primary-base);
}

.shape-label {
	flex: 1;
	text-align: left;
}

.sound-column .shape-btn:hover {
	border-color: var(--color-primary-base);
}

.path-column .shape-btn:hover {
	border-color: var(--color-danger-base);
}