/* SL Editor UI System - Main Stylesheet */
/* All theming via CSS custom properties */

/* ========================================
   CSS RESET & BASE
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-ui);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow: hidden;
    transition: background var(--transition), color var(--transition);
}

/* ========================================
   THEME VARIABLES (defaults - overridden by JS)
   ======================================== */

:root {
    /* Fonts */
    --font-code: 'JetBrains Mono', monospace;
    --font-ui: 'Inter', sans-serif;
    --font-content: 'IBM Plex Sans', sans-serif;
    
    /* Colors */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-panel: #1a1a2e;
    --bg-hover: #252547;
    --bg-active: #0f3460;
    
    --text-primary: #eaeaea;
    --text-secondary: #b8b8b8;
    --text-muted: #6b6b8d;
    --text-inverse: #1a1a2e;
    
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --accent-active: #c73e54;
    
    --border: #2a2a4a;
    --border-focus: #e94560;
    
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #ef4444;
    --info: #38bdf8;
    
    --shadow: rgba(0, 0, 0, 0.3);
    --overlay: rgba(10, 10, 20, 0.85);
    
    --toolbar-bg: #0f0f1a;
    --window-header: #16213e;
    --scrollbar: #2a2a4a;
    --scrollbar-thumb: #e94560;
    
    /* Effects */
    --glow: 0 4px 20px rgba(233, 69, 96, 0.15);
    --border-radius: 8px;
    --transition: 0.2s;
    
    /* Neumorphic (for designer theme) */
    --neumorphic-raised: none;
    --neumorphic-inset: none;
    
    /* Layout */
    --toolbar-size: 36px;
    --window-header-height: 36px;
    --window-min-width: 200px;
    --window-min-height: 150px;
}

/* ========================================
   SCROLLBARS
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

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

/* ========================================
   APP CONTAINER
   ======================================== */

.sl-app {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sl-app[data-toolbar-position="left"],
.sl-app[data-toolbar-position="right"] {
    flex-direction: row;
}

/* ========================================
   TOOLBAR
   ======================================== */

.sl-toolbar {
    background-color: var(--toolbar-bg);
    background-image: var(--toolbar-bg-image, none);
    background-size: var(--toolbar-bg-size, cover);
    background-position: var(--toolbar-bg-position, center);
    background-repeat: var(--toolbar-bg-repeat, no-repeat);
    background-blend-mode: var(--toolbar-bg-blend, normal);
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    z-index: 1000;
    /* Only transition visual properties, not width/height (causes resize delay) */
    transition: background var(--transition), color var(--transition), border var(--transition), box-shadow var(--transition);
}

/* Toolbar positions */
.sl-app[data-toolbar-position="top"] .sl-toolbar {
    flex-direction: row;
    width: 100%;
    height: var(--toolbar-size);
    border-bottom: 1px solid var(--border);
}

.sl-app[data-toolbar-position="bottom"] .sl-toolbar {
    flex-direction: row;
    width: 100%;
    height: var(--toolbar-size);
    border-top: 1px solid var(--border);
    order: 1;
}

.sl-app[data-toolbar-position="left"] .sl-toolbar {
    flex-direction: column;
    width: var(--toolbar-size);
    height: 100%;
    border-right: 1px solid var(--border);
    cursor: move;
}

.sl-app[data-toolbar-position="right"] .sl-toolbar {
    flex-direction: column;
    width: var(--toolbar-size);
    height: 100%;
    border-left: 1px solid var(--border);
    order: 1;
    cursor: move;
}

.sl-app[data-toolbar-position="top"] .sl-toolbar,
.sl-app[data-toolbar-position="bottom"] .sl-toolbar {
    cursor: move;
}

/* Move cursor when dragging docked toolbar (consistent with windows) */
.sl-toolbar-wrapper.dragging .sl-toolbar {
    cursor: move;
}

/* Toolbar items keep pointer cursor */
.sl-toolbar-item,
.sl-toolbar-user {
    cursor: pointer;
}

/* Floating toolbar - use wrapper with frame like windows */
.sl-toolbar-wrapper {
    display: contents; /* Don't affect layout in docked modes */
}

.sl-app[data-toolbar-position="float"] .sl-toolbar-wrapper {
    display: block;
    position: fixed;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    z-index: 1000;
    /* Padding creates hover zone around toolbar */
    padding: var(--window-frame-hover-zone);
}

/* Floating toolbar frame - surrounds toolbar, appears on hover from outside */
.sl-toolbar-frame {
    display: none;
}

.sl-app[data-toolbar-position="float"] .sl-toolbar-frame {
    display: block;
    position: absolute;
    inset: calc(var(--window-frame-hover-zone) - var(--window-frame-size));
    background: var(--window-header);
    border: 1px solid var(--border);
    border-radius: var(--window-frame-radius);
    box-shadow: var(--glow);
    cursor: move;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: -1;
}

/* Frame appears when hovering wrapper but not inside toolbar */
.sl-app[data-toolbar-position="float"] .sl-toolbar-wrapper.frame-visible .sl-toolbar-frame {
    opacity: 1;
    pointer-events: auto;
}

.sl-app[data-toolbar-position="float"] .sl-toolbar-wrapper.dragging .sl-toolbar-frame {
    opacity: 1;
    pointer-events: auto;
}

/* Hide toolbar border/shadow when frame visible */
.sl-app[data-toolbar-position="float"] .sl-toolbar-wrapper.frame-visible .sl-toolbar,
.sl-app[data-toolbar-position="float"] .sl-toolbar-wrapper.dragging .sl-toolbar {
    border-color: transparent;
    box-shadow: none;
}

/* Floating toolbar body - fixed size, always visible */
.sl-app[data-toolbar-position="float"] .sl-toolbar {
    position: relative;
    flex-direction: column;
    width: auto;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--glow);
    padding: 4px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

/* Floating toolbar grid layout for many items */
.sl-app[data-toolbar-position="float"] .sl-toolbar-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, 30px);
    gap: 2px;
    max-width: calc(30px * 4 + 8px);
    max-height: 60vh;
    overflow-y: auto;
}

/* Single column when few items */
.sl-app[data-toolbar-position="float"] .sl-toolbar-items.few-items {
    grid-template-columns: 1fr;
}

/* Toolbar items container */
.sl-toolbar-items {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.sl-app[data-toolbar-position="left"] .sl-toolbar-items,
.sl-app[data-toolbar-position="right"] .sl-toolbar-items {
    flex-direction: column;
}

/* Toolbar logo */
.sl-toolbar-logo {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 1px;
    box-sizing: border-box;
}

.sl-toolbar-logo img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

/* Toolbar items */
.sl-toolbar-item {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    font-size: 1rem;
}

/* Toolbar icon images (SVG icons) */
.sl-toolbar-item img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    opacity: 0.7;
    transition: opacity var(--transition);
}

.sl-toolbar-item:hover img {
    opacity: 1;
}

.sl-toolbar-item.active img {
    opacity: 1;
}

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

.sl-toolbar-item.active {
    background: var(--bg-active);
    color: var(--accent);
}

.sl-toolbar-item.loaded::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
}


/* Toolbar spacer */
.sl-toolbar-spacer {
    flex: 1;
}

/* Toolbar divider */
.sl-toolbar-divider {
    width: 1px;
    height: 20px;
    background: var(--border);
    margin: 0 2px;
}

.sl-app[data-toolbar-position="left"] .sl-toolbar-divider,
.sl-app[data-toolbar-position="right"] .sl-toolbar-divider,
.sl-app[data-toolbar-position="float"] .sl-toolbar-divider {
    width: 20px;
    height: 1px;
    margin: 2px 0;
}

/* ========================================
   WORKSPACE (window container)
   ======================================== */

.sl-workspace {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
}

/* Centered app logo watermark */
.sl-workspace-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
    opacity: 0.12;
    user-select: none;
}

.sl-workspace-logo img {
    width: auto;
    height: auto;
    max-width: 40vmin;
    max-height: 40vmin;
    object-fit: contain;
}

/* ========================================
   DOCK LAYER (behind floating windows)
   ======================================== */

.sl-dock-layer {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
}

/* Dock container - recursive split containers */
.sl-dock-container {
    display: flex;
    flex: 1;
    min-width: 0;
    min-height: 0;
    position: relative;
}

.sl-dock-container[data-direction="horizontal"] {
    flex-direction: row;
}

.sl-dock-container[data-direction="vertical"] {
    flex-direction: column;
}

/* Dock panel - leaf nodes containing actual windows */
.sl-dock-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 100px;
    min-height: 80px;
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    overflow: hidden;
}

/* Docked windows - no frame, fill panel completely */
.sl-dock-panel .sl-window-container {
    position: relative !important;
    left: auto !important;
    top: auto !important;
    width: 100% !important;
    height: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
}

.sl-dock-panel .sl-window-frame {
    display: none !important;
}

.sl-dock-panel .sl-window {
    width: 100% !important;
    height: 100% !important;
}

.sl-dock-panel .sl-window-body {
    border-radius: 0 !important;
    border: none !important;
    box-shadow: none !important;
    flex: 1;
}

.sl-dock-panel .sl-resize-handle {
    display: none !important;
}

/* Panel-specific drop zones (for subdivision docking) - edge strips */
.sl-dock-panel .sl-panel-drop-zone {
    position: absolute;
    background: var(--accent);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 10;
}

.sl-dock-panel .sl-panel-drop-zone.active {
    opacity: 0.4;
}

.sl-dock-panel .sl-panel-drop-zone.left {
    left: 0;
    top: 0;
    width: 30px;
    height: 100%;
}

.sl-dock-panel .sl-panel-drop-zone.right {
    right: 0;
    top: 0;
    width: 30px;
    height: 100%;
}

.sl-dock-panel .sl-panel-drop-zone.top {
    left: 0;
    top: 0;
    width: 100%;
    height: 30px;
}

.sl-dock-panel .sl-panel-drop-zone.bottom {
    left: 0;
    bottom: 0;
    width: 100%;
    height: 30px;
}

/* Dock divider - draggable to resize splits */
.sl-dock-divider {
    flex-shrink: 0;
    background: var(--border);
    transition: background 0.15s ease;
    z-index: 5;
}

.sl-dock-divider:hover,
.sl-dock-divider.dragging {
    background: var(--accent);
}

.sl-dock-container[data-direction="horizontal"] > .sl-dock-divider {
    width: 4px;
    cursor: ew-resize;
}

.sl-dock-container[data-direction="vertical"] > .sl-dock-divider {
    height: 4px;
    cursor: ns-resize;
}

/* Drop zone indicators - shown during drag */
.sl-drop-zone {
    position: fixed;
    background: var(--accent);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 9999;
}

.sl-drop-zone.active {
    opacity: 0.3;
}

.sl-drop-zone.left {
    left: 0;
    top: 0;
    width: 80px;
    height: 100%;
}

.sl-drop-zone.right {
    right: 0;
    top: 0;
    width: 80px;
    height: 100%;
}

.sl-drop-zone.top {
    left: 0;
    top: 0;
    width: 100%;
    height: 60px;
}

.sl-drop-zone.bottom {
    left: 0;
    bottom: 0;
    width: 100%;
    height: 60px;
}

/* Drop preview - shows where window will dock */
.sl-drop-preview {
    position: fixed;
    background: var(--accent);
    opacity: 0.2;
    border: 2px dashed var(--accent);
    pointer-events: none;
    z-index: 9998;
    display: none;
}

.sl-drop-preview.visible {
    display: block;
}

/* Floating windows layer - above dock layer */
.sl-float-layer {
    position: absolute;
    inset: 0;
    z-index: 10;
    pointer-events: none;
}

.sl-float-layer > * {
    pointer-events: auto;
}

/* ========================================
   WINDOWS
   ======================================== */

/* Window frame size */
:root {
    --window-frame-size: 8px;
    --window-frame-hover-zone: 12px;
    --window-frame-radius: calc(var(--border-radius) + 6px);
}

/* Container - extends beyond window for hover detection */
.sl-window-container {
    position: absolute;
    /* Padding creates hover zone around window (larger than frame for easier targeting) */
    padding: var(--window-frame-hover-zone);
}

/* The actual window */
.sl-window {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    min-width: var(--window-min-width);
    min-height: var(--window-min-height);
}

/* Window body - the visible window */
.sl-window-body {
    position: relative;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--glow);
    overflow: hidden;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.sl-window.focused {
    z-index: 100;
}

/* Neumorphic windows (designer theme) */
.sl-window.neumorphic .sl-window-body {
    box-shadow: var(--neumorphic-raised);
    border: none;
}

/* Window frame - invisible hit area for move (corners excluded for resize) */
.sl-window-frame {
    position: absolute;
    /* Inset from container edge, leaving space for the frame thickness */
    inset: calc(var(--window-frame-hover-zone) - var(--window-frame-size));
    background: transparent;
    border: none;
    cursor: move;
    opacity: 0;
    pointer-events: none;
    z-index: -1;
    /* Cut out corners (20px) so resize handles aren't blocked by frame */
    --corner-size: 20px;
    clip-path: polygon(
        var(--corner-size) 0%, 
        calc(100% - var(--corner-size)) 0%,
        calc(100% - var(--corner-size)) var(--corner-size),
        100% var(--corner-size),
        100% calc(100% - var(--corner-size)),
        calc(100% - var(--corner-size)) calc(100% - var(--corner-size)),
        calc(100% - var(--corner-size)) 100%,
        var(--corner-size) 100%,
        var(--corner-size) calc(100% - var(--corner-size)),
        0% calc(100% - var(--corner-size)),
        0% var(--corner-size),
        var(--corner-size) var(--corner-size),
        var(--corner-size) 0%
    );
}

/* Frame becomes active (for hit-testing) when hovering container */
.sl-window-container.frame-visible .sl-window-frame {
    opacity: 1;
    pointer-events: auto;
}

/* Visual feedback: outline on window body when in move/resize ready state (hover) */
.sl-window-container.frame-visible .sl-window-body {
    outline: 2px solid var(--accent);
    outline-offset: 0; /* Changed from -2px to 0 so border appears at edge, not inside content */
}

/* Glass mode hover: use black outline to avoid Chrome rendering bugs */
.sl-window-container.glass-mode.frame-visible .sl-window-body {
    outline-color: #000;
}

/* When dragging or resizing, keep frame active and show stronger outline */
.sl-window-container.dragging .sl-window-frame,
.sl-window-container.resizing .sl-window-frame {
    opacity: 1;
    pointer-events: auto;
}

.sl-window-container.dragging .sl-window-body,
.sl-window-container.resizing .sl-window-body {
    outline: 2px solid var(--accent);
    outline-offset: 0; /* Changed from -2px to 0 so border appears at edge, not inside content */
    box-shadow: 0 0 20px rgba(var(--accent-rgb, 100, 149, 237), 0.3);
}

/* Glass mode dragging/resizing: use black outline to avoid Chrome rendering bugs */
.sl-window-container.glass-mode.dragging .sl-window-body,
.sl-window-container.glass-mode.resizing .sl-window-body {
    outline-color: #000;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

/* Window content */
.sl-window-content {
    flex: 1;
    overflow: auto;
    padding: var(--content-padding, 12px);
}

/* ========================================
   WINDOW CONTROLS (undock/close buttons)
   ======================================== */

.sl-window-controls {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 4px;
    z-index: 20;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.sl-window-controls.visible {
    opacity: 1;
    pointer-events: auto;
}

.sl-window-ctrl-btn {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    transition: all 0.15s ease;
}

.sl-window-ctrl-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent);
}

.sl-window-ctrl-btn.close:hover {
    background: var(--error);
    color: white;
    border-color: var(--error);
}

/* Floating windows: show dock, hide undock */
.sl-float-layer .sl-window-ctrl-btn.dock {
    display: flex;
}

.sl-float-layer .sl-window-ctrl-btn.undock {
    display: none;
}

/* Docked windows: show undock, hide dock */
.sl-dock-panel .sl-window-ctrl-btn.dock {
    display: none;
}

.sl-dock-panel .sl-window-ctrl-btn.undock {
    display: flex;
}

/* ========================================
   RESIZE HANDLES (inside window, at inner edges)
   ======================================== */

.sl-resize-handle {
    position: absolute;
    background: transparent;
    z-index: 10;
}

/* Edge handles - DISABLED (corner-only resize) */
.sl-resize-handle.n,
.sl-resize-handle.s,
.sl-resize-handle.e,
.sl-resize-handle.w { 
    display: none; 
}

/* Corner handles - larger for easier grabbing */
.sl-resize-handle.nw { top: -4px; left: -4px; width: 20px; height: 20px; cursor: nw-resize; }
.sl-resize-handle.ne { top: -4px; right: -4px; width: 20px; height: 20px; cursor: ne-resize; }
.sl-resize-handle.sw { bottom: -4px; left: -4px; width: 20px; height: 20px; cursor: sw-resize; }
.sl-resize-handle.se { bottom: -4px; right: -4px; width: 20px; height: 20px; cursor: se-resize; }

/* ========================================
   CONTEXT MENUS & DROPDOWNS
   ======================================== */

.sl-menu {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px var(--shadow);
    padding: 4px;
    z-index: 2000;
    min-width: 160px;
}

.sl-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: background var(--transition);
}

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

.sl-menu-item.active {
    background: var(--bg-active);
    color: var(--accent);
}

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

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

.sl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.sl-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--border-focus);
}

.sl-btn:active:not(:disabled) {
    transform: translateY(1px);
}

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

/* Button icon */
.sl-btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1em;
    line-height: 1;
}

.sl-btn-icon img {
    width: 1em;
    height: 1em;
    object-fit: contain;
}

/* Icon-only button */
.sl-btn-icon-only {
    padding: 8px;
    aspect-ratio: 1;
}

/* Button sizes */
.sl-btn-small {
    padding: 2px 8px;
    font-size: 0.75rem;
    gap: 4px;
}

.sl-btn-small.sl-btn-icon-only {
    padding: 4px;
}

.sl-btn-large {
    padding: 12px 24px;
    font-size: 1rem;
    gap: 8px;
}

.sl-btn-large.sl-btn-icon-only {
    padding: 12px;
}

/* Button variants */
.sl-btn-default {
    background: var(--bg-tertiary);
    border-color: var(--border);
    color: var(--text-primary);
}

.sl-btn-primary,
.sl-btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--text-inverse);
}

.sl-btn-primary:hover:not(:disabled),
.sl-btn.primary:hover:not(:disabled) {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.sl-btn-danger {
    background: var(--error);
    border-color: var(--error);
    color: white;
}

.sl-btn-danger:hover:not(:disabled) {
    filter: brightness(1.1);
}

.sl-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-secondary);
}

.sl-btn-ghost:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Toggle button states */
.sl-toggle-btn.pressed {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--text-inverse);
}

.sl-toggle-btn.pressed:hover:not(:disabled) {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

/* Button group */
.sl-btn-group {
    display: inline-flex;
    gap: 0;
}

.sl-btn-group .sl-btn {
    border-radius: 0;
}

.sl-btn-group .sl-btn:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.sl-btn-group .sl-btn:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* ========================================
   ICON BUTTON - Minimal toolbar/control bar button
   Use SLUI.IconButton() instead of document.createElement('button')
   ======================================== */

.sl-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.sl-icon-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--accent);
}

.sl-icon-btn:active:not(:disabled) {
    background: var(--bg-active);
}

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

/* Toolbar variant - more compact, fits in toolbars */
.sl-icon-btn-toolbar {
    min-width: 26px;
    height: 26px;
    padding: 2px 6px;
    font-size: 13px;
}

/* Ghost variant - no border until hover */
.sl-icon-btn-ghost {
    background: transparent;
    border-color: transparent;
}

.sl-icon-btn-ghost:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--border);
}

/* ========================================
   CTRL BUTTON - Compact control bar button
   Use SLUI.CtrlButton() for shader controls, playback bars, etc.
   ======================================== */

.sl-ctrl-btn {
    width: 28px;
    height: 24px;
    border: 1px solid var(--border, rgba(255,255,255,0.15));
    border-radius: 4px;
    background: var(--bg-secondary, #30363d);
    color: var(--text-primary, #c9d1d9);
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
    /* Inset lighting: top inner highlight, inner shadow, ambient depth, outer drop */
    box-shadow:
        inset 0  1px 1px 0 rgba(255,255,255,0.25),
        inset 0 -1px 1px 0 rgba(0,0,0,0.3),
        inset 0  0   2px 1px rgba(0,0,0,0.06),
        1px 1px 3px 0 rgba(0,0,0,0.35);
    /* Tight icon glow on text/emoji content */
    text-shadow:
        0 0 2px rgba(180, 210, 255, 0.7),
        0 0 1px rgba(180, 210, 255, 0.5);
}

/* Top edge highlight — thin bright strip */
.sl-ctrl-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 2px;
    right: 2px;
    height: 2px;
    border-bottom-left-radius: 2px;
    border-bottom-right-radius: 2px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.45), rgba(255,255,255,0));
    pointer-events: none;
}

/* Bottom edge shadow — thin dark strip */
.sl-ctrl-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 2px;
    right: 2px;
    height: 2px;
    border-top-left-radius: 2px;
    border-top-right-radius: 2px;
    background: linear-gradient(to top, rgba(0,0,0,0.2), rgba(0,0,0,0));
    pointer-events: none;
}

/* Tight icon glow for SVG / child elements */
.sl-ctrl-btn > * {
    filter:
        drop-shadow(0 0 1.5px rgba(180, 210, 255, 0.7))
        drop-shadow(0 0 0.5px rgba(180, 210, 255, 0.5));
    transition: filter 0.15s;
}

.sl-ctrl-btn:hover:not(:disabled) {
    background: var(--bg-hover, #484f58);
    border-color: var(--border-focus, var(--accent));
    box-shadow:
        inset 0  1px 1px 0 rgba(255,255,255,0.3),
        inset 0 -1px 1px 0 rgba(0,0,0,0.25),
        inset 0  0   2px 1px rgba(0,0,0,0.04),
        1px 1px 4px 0 rgba(0,0,0,0.3),
        0 0 6px rgba(var(--accent-rgb, 88,166,255), 0.15);
    text-shadow:
        0 0 3px rgba(180, 210, 255, 0.9),
        0 0 1px rgba(180, 210, 255, 0.6);
}

.sl-ctrl-btn:hover:not(:disabled) > * {
    filter:
        drop-shadow(0 0 2px rgba(180, 210, 255, 0.9))
        drop-shadow(0 0 1px rgba(180, 210, 255, 0.6));
}

.sl-ctrl-btn:active:not(:disabled) {
    transform: translateY(1px);
    box-shadow:
        inset 0  1px 2px 0 rgba(0,0,0,0.3),
        inset 0  0   2px 1px rgba(0,0,0,0.1),
        0 0 1px 0 rgba(0,0,0,0.2);
}

/* Flatten pseudo-highlights when pressed */
.sl-ctrl-btn:active:not(:disabled)::before { opacity: 0.3; }
.sl-ctrl-btn:active:not(:disabled)::after  { opacity: 0; }

.sl-ctrl-btn.active {
    background: var(--accent, #58a6ff);
    color: var(--text-inverse, #fff);
    border-color: var(--accent, #58a6ff);
    box-shadow:
        inset 0  1px 1px 0 rgba(255,255,255,0.35),
        inset 0 -1px 1px 0 rgba(0,0,0,0.25),
        inset 0  0   2px 1px rgba(0,0,0,0.05),
        1px 1px 3px 0 rgba(0,0,0,0.3),
        0 0 6px rgba(var(--accent-rgb, 88,166,255), 0.25);
    text-shadow:
        0 0 3px rgba(255, 255, 255, 0.8),
        0 0 1px rgba(255, 255, 255, 0.5);
}

.sl-ctrl-btn.active > * {
    filter:
        drop-shadow(0 0 2px rgba(255, 255, 255, 0.8))
        drop-shadow(0 0 1px rgba(255, 255, 255, 0.5));
}

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

/* Button-group positions: left / middle / right */
.sl-ctrl-btn-left {
    border-radius: 4px 0 0 4px;
}

.sl-ctrl-btn-middle {
    border-radius: 0;
}

.sl-ctrl-btn-right {
    border-radius: 0 4px 4px 0;
}

.sl-btn-group .sl-btn:not(:last-child) {
    border-right: none;
}

/* ========================================
   SLIDE TOGGLE (iOS-style switch)
   ======================================== */

.sl-slide-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    user-select: none;
}

.sl-slide-toggle-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s ease;
}

.sl-slide-toggle-label.active {
    color: var(--accent);
    font-weight: 600;
}

.sl-slide-toggle-track {
    position: relative;
    width: 36px;
    height: 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 9px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.sl-slide-toggle-track:hover {
    border-color: var(--accent);
}

.sl-slide-toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: left 0.2s ease, background 0.2s ease;
}

.sl-slide-toggle.active .sl-slide-toggle-track {
    background: var(--accent);
    border-color: var(--accent);
}

.sl-slide-toggle.active .sl-slide-toggle-thumb {
    left: calc(100% - 14px);
    background: white;
}

/* Size variations */
.sl-slide-toggle-small .sl-slide-toggle-track {
    width: 28px;
    height: 14px;
    border-radius: 7px;
}

.sl-slide-toggle-small .sl-slide-toggle-thumb {
    width: 10px;
    height: 10px;
    top: 1px;
    left: 1px;
}

.sl-slide-toggle-small.active .sl-slide-toggle-thumb {
    left: calc(100% - 11px);
}

.sl-slide-toggle-small .sl-slide-toggle-label {
    font-size: 0.6rem;
}

.sl-slide-toggle-large .sl-slide-toggle-track {
    width: 48px;
    height: 24px;
    border-radius: 12px;
}

.sl-slide-toggle-large .sl-slide-toggle-thumb {
    width: 18px;
    height: 18px;
    top: 2px;
    left: 2px;
}

.sl-slide-toggle-large.active .sl-slide-toggle-thumb {
    left: calc(100% - 20px);
}

/* ========================================
   COLOR INPUT (with SL/OS toggle)
   ======================================== */

.sl-color-input {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.sl-color-input-swatch {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border);
    cursor: pointer;
    transition: transform 0.1s ease, border-color 0.15s ease;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.sl-color-input-swatch:hover {
    transform: scale(1.05);
    border-color: var(--accent);
}

/* Native input - hidden in SL mode, visible in OS mode */
.sl-color-input-native {
    display: none;
}

.sl-color-input.native-mode .sl-color-input-native {
    display: block;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    background: none;
}

.sl-color-input.native-mode .sl-color-input-native::-webkit-color-swatch-wrapper {
    padding: 0;
}

.sl-color-input.native-mode .sl-color-input-native::-webkit-color-swatch {
    border: none;
    border-radius: calc(var(--border-radius) - 2px);
}

.sl-color-input.native-mode .sl-color-input-native::-moz-color-swatch {
    border: none;
    border-radius: calc(var(--border-radius) - 2px);
}

/* Hide swatch in native mode */
.sl-color-input.native-mode .sl-color-input-swatch {
    display: none;
}

.sl-color-input-hex {
    font-family: var(--font-code);
    font-size: 0.7rem;
    color: var(--text-secondary);
    min-width: 60px;
}

.sl-color-input-toggle {
    margin-left: auto;
}

/* ========================================
   COLOR PICKER POPUP (RGB + HSV Sliders)
   ======================================== */

.sl-color-popup {
    position: fixed;
    display: none;
    flex-direction: column;
    width: 280px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px var(--shadow);
    z-index: 10000;
    overflow: hidden;
}

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

.sl-color-popup-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sl-color-popup-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0;
    line-height: 1;
}

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

.sl-color-popup-body {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sl-color-popup-preview-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sl-color-popup-swatch {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.sl-color-popup-hex {
    flex: 1;
    padding: 8px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.8rem;
}

.sl-color-popup-hex:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-color-popup-sliders {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-color-popup-channel {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sl-color-popup-channel-label {
    width: 14px;
    font-size: 0.65rem;
    font-weight: 600;
    text-align: center;
}

.sl-color-popup-channel-track {
    flex: 1;
    height: 18px;
    cursor: pointer;
}

.sl-color-popup-channel-bg {
    position: relative;
    height: 16px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.3);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.2);
}

.sl-color-popup-channel-thumb {
    position: absolute;
    top: 0;
    width: 8px;
    height: 16px;
    border-radius: 2px;
    background: rgba(255,255,255,0.3);
    border: 2px solid white;
    box-shadow: 0 0 3px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(0,0,0,0.2);
    transform: translateX(-50%);
    cursor: pointer;
}

.sl-color-popup-channel-value {
    width: 38px;
    padding: 2px 4px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.65rem;
    text-align: center;
}

.sl-color-popup-channel-value:focus {
    outline: none;
    border-color: var(--accent);
}

/* ========================================
   TOOLTIPS
   ======================================== */

.sl-tooltip {
    position: fixed;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 0.75rem;
    white-space: nowrap;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    box-shadow: 0 4px 12px var(--shadow);
}

.sl-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.sl-tooltip-top {
    transform-origin: bottom center;
}

.sl-tooltip-bottom {
    transform-origin: top center;
}

.sl-tooltip-left {
    transform-origin: right center;
}

.sl-tooltip-right {
    transform-origin: left center;
}

.sl-tooltip-top.visible,
.sl-tooltip-bottom.visible,
.sl-tooltip-left.visible,
.sl-tooltip-right.visible {
    transform: translate(0);
}

/* ========================================
   INPUTS
   ======================================== */

.sl-input {
    padding: 8px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 0.875rem;
    outline: none;
    transition: border-color var(--transition);
}

.sl-input:focus {
    border-color: var(--border-focus);
}

.sl-select {
    padding: 6px 28px 6px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 0.75rem; /* 12px */
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b6b8d' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    min-width: 140px;
}

.sl-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
}

/* Compact variant (media panels, inline forms) */
.sl-select-compact {
    padding: 4px 24px 4px 8px;
    font-size: 0.6875rem; /* 11px */
    min-width: auto;
    background-position: right 6px center;
}

/* Monospace variant (channel viewer, code-related) */
.sl-select-monospace {
    font-family: var(--font-code);
    padding: 2px 20px 2px 6px;
    font-size: 0.6875rem; /* 11px */
    min-width: 70px;
    background-position: right 4px center;
}

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

.sl-text-code { font-family: var(--font-code); }
.sl-text-ui { font-family: var(--font-ui); }
.sl-text-content { font-family: var(--font-content); }

.sl-text-primary { color: var(--text-primary); }
.sl-text-secondary { color: var(--text-secondary); }
.sl-text-muted { color: var(--text-muted); }
.sl-text-accent { color: var(--accent); }

.sl-bg-primary { background: var(--bg-primary); }
.sl-bg-secondary { background: var(--bg-secondary); }
.sl-bg-tertiary { background: var(--bg-tertiary); }

/* ========================================
   USER BUTTON & MENU
   ======================================== */

.sl-toolbar-user {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: all var(--transition);
    margin: 2px;
}

.sl-toolbar-user:hover {
    border-color: var(--accent);
}

.sl-toolbar-user img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sl-user-initial {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.sl-user-menu {
    min-width: 200px;
}

/* Utility */
.sl-fullwidth {
    width: 100%;
}

.sl-menu-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
}

.sl-menu-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    overflow: hidden;
}

.sl-menu-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sl-menu-user-info {
    flex: 1;
}

.sl-menu-user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.sl-menu-user-status {
    font-size: 0.75rem;
}

/* ========================================
   SETTINGS CONTENT (for panel)
   ======================================== */

.sl-settings-content {
    padding: 4px;
}

.sl-settings-group {
    margin-bottom: 16px;
}

.sl-settings-group.hidden {
    display: none;
}

.sl-settings-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sl-settings-select {
    width: 100%;
}

.sl-settings-info {
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ========================================
   MOBILE ZONES
   ======================================== */

.sl-mobile-zones {
    display: none;
    width: 100%;
    height: 100%;
    flex: 1;
}

.sl-app[data-mode="mobile"] .sl-workspace {
    display: flex;
    flex: 1;
    min-height: 0;
}

.sl-app[data-mode="mobile"] .sl-mobile-zones {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-mobile-zones {
    flex-direction: row;
}

.sl-mobile-zone {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    transition: border-color var(--transition);
    overflow: hidden;
    min-height: 100px;
    min-width: 100px;
    position: relative;
}

.sl-mobile-zone.focused {
    border-color: var(--accent);
}

/* Empty zone placeholder */
.sl-mobile-zone .sl-zone-content:empty::after {
    content: attr(data-empty-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
}

.sl-zone-content {
    flex: 1;
    overflow: auto;
    display: flex;
    flex-direction: column;
}

.sl-zone-content > *:not(.sl-zone-header) {
    flex: 1;
    overflow: auto;
}

.sl-zone-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--window-header);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sl-zone-icon {
    font-size: 1rem;
}

.sl-zone-title {
    flex: 1;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.sl-zone-close {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.sl-zone-close:hover {
    background: var(--error);
    color: white;
}

.sl-zone-body {
    flex: 1;
    overflow: auto;
    padding: 12px;
}

/* ========================================
   PROFILE PANEL
   ======================================== */

.sl-profile-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sl-profile-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.sl-profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--text-inverse);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    overflow: hidden;
}

.sl-profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sl-profile-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-profile-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sl-profile-status {
    font-size: 0.8125rem;
}

.sl-settings-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sl-settings-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 500;
}

.sl-zone-divider {
    flex-shrink: 0;
    background: var(--border);
    position: relative;
    z-index: 10;
}

/* Portrait: horizontal divider */
.sl-app[data-mode="mobile"][data-orientation="portrait"] .sl-zone-divider {
    height: 8px;
    cursor: ns-resize;
}

/* Landscape: vertical divider */
.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-zone-divider {
    width: 8px;
    cursor: ew-resize;
}

.sl-zone-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 4px;
    background: var(--text-muted);
    border-radius: 2px;
    opacity: 0.5;
}

.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-zone-divider::after {
    width: 4px;
    height: 40px;
}

/* Single zone mode (double-tap divider) */
.sl-mobile-zones.single-zone .sl-mobile-zone:not(.focused) {
    display: none;
}

.sl-mobile-zones.single-zone .sl-zone-divider {
    display: none;
}

.sl-mobile-zones.single-zone .sl-mobile-zone.focused {
    flex: 1;
}

/* ========================================
   MOBILE RESPONSIVE
   ======================================== */

/* Mobile mode adjustments */
.sl-app[data-mode="mobile"] {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height for mobile browsers */
}

.sl-app[data-mode="mobile"] .sl-toolbar {
    flex-shrink: 0;
}

/* Portrait: toolbar at top */
.sl-app[data-mode="mobile"][data-orientation="portrait"] {
    flex-direction: column;
}

.sl-app[data-mode="mobile"][data-orientation="portrait"] .sl-toolbar {
    flex-direction: row;
    width: 100%;
    height: var(--toolbar-size);
    border-bottom: 1px solid var(--border);
    border-right: none;
    order: -1; /* Ensure toolbar is first */
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

/* Hide header on mobile */
.sl-app[data-mode="mobile"] .sl-toolbar-header {
    display: none !important;
}

/* Mobile toolbar items container - horizontal scroll */
.sl-app[data-mode="mobile"] .sl-toolbar-items {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 2px;
}

/* Overflow indicator for mobile */
.sl-toolbar-overflow {
    display: none;
}

.sl-app[data-mode="mobile"] .sl-toolbar.has-overflow .sl-toolbar-overflow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 40px;
    background: linear-gradient(to right, transparent, var(--toolbar-bg) 50%);
    color: var(--text-muted);
    position: sticky;
    right: 0;
    flex-shrink: 0;
}

.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-toolbar.has-overflow .sl-toolbar-overflow {
    width: 40px;
    height: 32px;
    background: linear-gradient(to bottom, transparent, var(--toolbar-bg) 50%);
    bottom: 0;
    right: auto;
}

/* Landscape: toolbar at left */
.sl-app[data-mode="mobile"][data-orientation="landscape"] {
    flex-direction: row;
}

.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-toolbar {
    flex-direction: column;
    width: var(--toolbar-size);
    height: 100%;
    border-right: 1px solid var(--border);
    border-bottom: none;
    order: -1; /* Ensure toolbar is first */
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.sl-app[data-mode="mobile"][data-orientation="landscape"] .sl-toolbar-items {
    flex-direction: column;
}

/* Mobile toolbar items */
.sl-app[data-mode="mobile"] .sl-toolbar-item {
    width: 34px;
    height: 34px;
    font-size: 1rem;
}

.sl-app[data-mode="mobile"] .sl-toolbar-user {
    width: 28px;
    height: 28px;
}

/* Mobile: hide desktop-style windows */
.sl-app[data-mode="mobile"] .sl-window-container {
    display: none !important;
}

/* Mobile: hide zone headers to save space */
.sl-app[data-mode="mobile"] .sl-zone-header {
    display: none;
}

/* ========================================
   THEME-SPECIFIC OVERRIDES
   ======================================== */

/* Default theme: hybrid (blue UI, light editor, dark console) */
[data-theme="default"] {
    /* Force variable definitions for editor */
    --editor-bg: #fafafa;
    --editor-text: #1a1a1a;
    --editor-gutter: #f0f0f0;
    --editor-line-highlight: #fff3cd;
}

/* Editor panel styling for default hybrid theme - light background */
[data-theme="default"] [data-panel-id="editor"] .v2-editor-wrapper,
[data-theme="default"] .monaco-editor,
[data-theme="default"] .v2-editor-host .v2-editor-wrapper {
    background: var(--editor-bg) !important;
}

/* Editor controls should stay with the UI blue theme */
[data-theme="default"] .v2-editor-controls,
[data-theme="default"] .v2-editor-host > div:first-child,
[data-theme="default"] .v2-editor-host > div:last-child {
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

/* ========================================
   CONSOLE - Fixed terminal styling
   Console uses hardcoded terminal colors for consistency.
   Only hacker theme overrides with green text.
   ======================================== */

/* Console scrollbar - always dark terminal style */
.slui-console ::-webkit-scrollbar-track {
    background: #1a1a1a !important;
}

.slui-console ::-webkit-scrollbar-thumb {
    background: #444444 !important;
}

.slui-console ::-webkit-scrollbar-thumb:hover {
    background: #555555 !important;
}

/* Hacker theme: green terminal text */
[data-theme="hacker"] .slui-console-entry,
[data-theme="hacker"] .slui-console-message {
    color: #00ff00 !important;
}

[data-theme="hacker"] .slui-console-time,
[data-theme="hacker"] .slui-console-count,
[data-theme="hacker"] .slui-console-status {
    color: #00aa00 !important;
}

/* Hacker theme keeps colored origins for visibility - no override needed */

/* Hacker theme: scanlines effect */
[data-theme="hacker"] .sl-app::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.1) 0px,
        rgba(0, 0, 0, 0.1) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 9999;
}

/* Designer theme: neumorphic shadows */
[data-theme="designer"] .sl-window-body {
    box-shadow: var(--neumorphic-raised);
    border: none;
}

[data-theme="designer"] .sl-btn {
    box-shadow: var(--neumorphic-raised);
    border: none;
}

[data-theme="designer"] .sl-btn:active {
    box-shadow: var(--neumorphic-inset);
}

[data-theme="designer"] .sl-input,
[data-theme="designer"] .sl-select {
    box-shadow: var(--neumorphic-inset);
    border: none;
}

/* ========================================
   SLIDER COMPONENTS
   ======================================== */

/* Slider Track (base) */
.sl-slider-track {
    position: relative;
    height: 24px;
    min-width: 100px;
    cursor: pointer;
    touch-action: none; /* Prevent browser scroll/zoom on touch */
}

.sl-slider-track.vertical {
    width: 24px;
    height: 100px;
    min-width: auto;
    min-height: 100px;
}

.sl-slider-track.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sl-slider-track-bg {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    border: 1px solid var(--border);
}

.sl-slider-track.vertical .sl-slider-track-bg {
    left: 50%;
    right: auto;
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
    width: 6px;
    height: auto;
}

.sl-slider-track-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0%;
    background: var(--accent);
    border-radius: 3px;
    transition: none;
}

.sl-slider-track.vertical .sl-slider-track-fill {
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    width: auto;
    height: 0%;
}

.sl-slider-thumb {
    position: absolute;
    left: 0%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    background: var(--accent);
    border: 2px solid var(--bg-panel);
    border-radius: 50%;
    box-shadow: 0 2px 6px var(--shadow);
    cursor: grab;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.sl-slider-track.vertical .sl-slider-thumb {
    left: 50%;
    top: auto;
    bottom: 0%;
    transform: translate(-50%, 50%);
}

.sl-slider-thumb:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 4px 12px var(--shadow);
}

.sl-slider-track.vertical .sl-slider-thumb:hover {
    transform: translate(-50%, 50%) scale(1.1);
}

.sl-slider-thumb:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--accent), 0.3), 0 2px 6px var(--shadow);
}

.sl-slider-thumb:active {
    cursor: grabbing;
}

.sl-slider-input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.sl-slider-track.disabled .sl-slider-thumb {
    cursor: not-allowed;
}

/* Slider (with value) */
.sl-slider {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sl-slider.vertical {
    flex-direction: column;
}

.sl-slider .sl-slider-track {
    flex: 1;
}

.sl-slider-value {
    min-width: 40px;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    font-family: var(--font-code);
    font-size: 0.75rem;
    text-align: center;
    color: var(--text-primary);
}

/* Labeled Slider */
.sl-labeled-slider {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    padding: 0 2px;
}

/* Slider Group */
.sl-slider-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sl-slider-group.disabled {
    opacity: 0.6;
}

.sl-slider-group-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sl-slider-group-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sl-slider-group-row .sl-labeled-slider {
    flex: 1;
}

.sl-slider-group-input {
    width: 70px;
    padding: 6px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.8rem;
    text-align: center;
}

.sl-slider-group-input:focus {
    outline: none;
    border-color: var(--border-focus);
}

/* Range Slider */
.sl-range-slider {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sl-range-slider.disabled {
    opacity: 0.5;
}

.sl-range-slider-track {
    position: relative;
    height: 24px;
    cursor: pointer;
}

.sl-range-slider-track::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 3px;
}

.sl-range-slider-fill {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 6px;
    background: var(--accent);
    border-radius: 3px;
}

.sl-range-slider-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    background: var(--accent);
    border: 2px solid var(--bg-panel);
    border-radius: 50%;
    box-shadow: 0 2px 6px var(--shadow);
    cursor: grab;
    transition: transform 0.1s ease;
    z-index: 1;
}

.sl-range-slider-thumb:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.sl-range-slider-thumb:active {
    cursor: grabbing;
}

.sl-range-slider-values {
    display: flex;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ========================================
   UNIFORM SLIDER - Expandable slider
   ======================================== */

.sl-uniform-slider {
    --uniform-row-height: 22px;
    --uniform-label-width: 100px;
    position: relative;
}

/* Wrapper for uniform sliders when grouped - provides consistent bg/border */
.sl-uniform-slider-wrapped {
    padding: 6px 8px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    margin-bottom: 4px;
}

/* Rows */
.sl-uniform-row {
    display: flex;
    align-items: center;
    gap: 4px;
    height: var(--uniform-row-height);
}

.sl-uniform-row-top,
.sl-uniform-row-bottom {
    display: none;
}

.sl-uniform-slider.expanded .sl-uniform-row-top,
.sl-uniform-slider.expanded .sl-uniform-row-bottom {
    display: flex;
}

/* Top row - Start | Value | End | Toggle(▲) */
.sl-uniform-row-top {
    padding-left: calc(var(--uniform-label-width) + 4px);
}

.sl-uniform-row-top .sl-editable-number {
    flex: 1;
    text-align: center;
}

/* Middle row - Label | Slider (full width) */
.sl-uniform-row-middle {
    gap: 4px;
}

/* When minimized, show toggle at end */
.sl-uniform-slider:not(.expanded) .sl-uniform-row-middle .sl-uniform-toggle {
    display: flex;
}

/* When expanded, hide toggle from middle row */
.sl-uniform-slider.expanded .sl-uniform-row-middle .sl-uniform-toggle {
    display: none;
}

.sl-uniform-label {
    width: var(--uniform-label-width);
    flex-shrink: 0;
    padding: 2px 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.75rem;
    cursor: default;
}

.sl-uniform-label:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: text;
}

.sl-uniform-label-readonly {
    cursor: default !important;
    border: none !important;
    background: transparent !important;
    user-select: none;
}

/* Collapsed value display (always visible in middle row) */
.sl-uniform-collapsed-value {
    font-family: var(--font-code);
    font-size: 0.7rem;
    color: var(--text-secondary);
    min-width: 40px;
    text-align: right;
    flex-shrink: 0;
    margin-left: 6px;
}

.sl-uniform-row-middle .sl-slider-track {
    flex: 1;
    height: 18px;
}

/* Expand/Collapse toggle button */
.sl-uniform-toggle {
    width: 20px;
    height: 18px;
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-uniform-toggle:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sl-uniform-slider.expanded .sl-uniform-toggle {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

/* Bottom row - Lock | Step | Incrementer | Close */
.sl-uniform-row-bottom {
    padding-left: calc(var(--uniform-label-width) + 4px);
}

.sl-uniform-lock {
    width: 24px;
    height: 18px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 3px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.sl-uniform-lock:hover {
    border-color: var(--accent);
    background: var(--bg-hover);
}

.sl-uniform-slider.locked .sl-uniform-lock {
    background: var(--warning);
    border-color: var(--warning);
}

.sl-uniform-step {
    flex: 1;
    text-align: center;
}

.sl-uniform-incrementer {
    display: flex;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

.sl-uniform-inc-btn {
    width: 22px;
    height: 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-uniform-inc-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sl-uniform-inc-btn:active {
    background: var(--bg-active);
}

/* Close button in bottom row */
.sl-uniform-close {
    width: 20px;
    height: 18px;
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-uniform-close:hover {
    background: var(--error);
    border-color: var(--error);
    color: white;
}

/* Editable number - wider with 4 decimal support */
.sl-editable-number {
    position: relative;
    min-width: 60px;
}

.sl-editable-number-display {
    display: block;
    padding: 2px 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    font-family: var(--font-code);
    font-size: 0.7rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-editable-number-display:hover {
    border-color: var(--border);
    color: var(--text-primary);
}

.sl-editable-number.scrubbing .sl-editable-number-display {
    border-color: var(--accent);
    color: var(--accent);
}

.sl-editable-number-input {
    position: absolute;
    inset: 0;
    width: 100%;
    padding: 2px 2px;
    background: var(--bg-panel);
    border: 1px solid var(--accent);
    border-radius: 3px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.7rem;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    appearance: textfield;
    -moz-appearance: textfield;
}

/* Hide number input spinners */
.sl-editable-number-input::-webkit-outer-spin-button,
.sl-editable-number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.sl-editable-number.editing .sl-editable-number-display {
    opacity: 0;
}

.sl-editable-number.editing .sl-editable-number-input {
    opacity: 1;
    pointer-events: auto;
    cursor: text;
}

.sl-editable-number-input:focus {
    outline: none;
}

/* Specific editable fields */
.sl-uniform-start,
.sl-uniform-end,
.sl-uniform-value {
    min-width: 60px;
}

.sl-uniform-value .sl-editable-number-display {
    color: var(--accent);
    font-weight: 500;
}

/* ========================================
   SLIDER STACK - Container for uniforms
   ======================================== */

.sl-slider-stack {
    display: flex;
    flex-direction: column;
    gap: 1px;
    padding: 4px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.sl-slider-stack-sliders {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.sl-slider-stack-item {
    position: relative;
    padding: 3px 4px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
}

.sl-slider-stack-item:hover {
    border-color: var(--border-focus);
}

/* Add button */
.sl-slider-stack-add {
    margin-top: 2px;
    padding: 4px 8px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-slider-stack-add:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-hover);
}

/* ========================================
   VECTOR SLIDER STACK - vec2/vec3/vec4
   Uses UniformSlider for each component
   ======================================== */

.sl-vector-stack {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    margin-bottom: 6px;
}

.sl-vector-stack-header {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}

.sl-vector-stack-name {
    font-family: var(--font-code);
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 500;
}

.sl-vector-stack-sliders {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Make component sliders more compact */
.sl-vector-component-slider {
    padding: 2px 0;
}

.sl-vector-component-slider .sl-uniform-label {
    width: 25px;
    min-width: 25px;
}

/* ========================================
   PARAMETER SLIDER - Title + Slider + Value
   ======================================== */

.sl-param-slider {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 24px;
}

.sl-param-slider.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.sl-param-title {
    flex-shrink: 0;
    min-width: 80px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sl-param-slider .sl-slider-track {
    flex: 1;
    height: 16px;
}

.sl-param-value {
    flex-shrink: 0;
    min-width: 45px;
    text-align: right;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.7rem;
}

.sl-param-incrementer {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.sl-param-inc-btn {
    width: 18px;
    height: 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-param-inc-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sl-param-inc-btn:active {
    background: var(--bg-active);
}

/* ========================================
   ICON SLIDER - Icon + Slider
   ======================================== */

.sl-icon-slider {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 24px;
}

.sl-icon-slider.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.sl-icon-slider-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
}

.sl-icon-slider .sl-slider-track {
    flex: 1;
    height: 14px;
    min-width: 60px;
}

/* Compact version */
.sl-icon-slider.compact {
    gap: 4px;
}

.sl-icon-slider.compact .sl-icon-slider-icon {
    width: 16px;
    height: 16px;
    font-size: 12px;
}

.sl-icon-slider.compact .sl-slider-track {
    height: 10px;
}

/* ========================================
   TIMELINE SLIDER - Time scrubber
   ======================================== */

.sl-timeline-slider {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 4px 0;
}

.sl-timeline-track-container {
    position: relative;
    height: 20px;
}

.sl-timeline-slider .sl-slider-track {
    height: 20px;
}

.sl-timeline-times {
    display: flex;
    justify-content: space-between;
    padding: 0 2px;
}

.sl-timeline-start,
.sl-timeline-end {
    color: var(--text-muted);
    font-family: var(--font-code);
    font-size: 0.65rem;
}

.sl-timeline-current {
    position: absolute;
    bottom: 100%;
    transform: translateX(-50%);
    padding: 2px 6px;
    background: var(--accent);
    border-radius: 3px;
    color: var(--bg-primary);
    font-family: var(--font-code);
    font-size: 0.65rem;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    margin-bottom: 4px;
}

.sl-timeline-current::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: var(--accent);
}

.sl-timeline-slider:hover .sl-timeline-current,
.sl-timeline-slider.dragging .sl-timeline-current {
    opacity: 1;
}

/* Compact timeline layout - single row */
.sl-timeline-compact {
    padding: 0;
    width: 100%;
}

.sl-timeline-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.sl-timeline-compact .sl-timeline-time {
    color: var(--text-muted, #8b949e);
    font-family: var(--font-code, monospace);
    font-size: 10px;
    min-width: 32px;
    white-space: nowrap;
    flex-shrink: 0;
}

.sl-timeline-compact .sl-timeline-start {
    text-align: left;
}

.sl-timeline-compact .sl-timeline-end {
    text-align: right;
}

.sl-timeline-track-wrapper {
    flex: 1;
    position: relative;
    height: 16px;
    display: flex;
    align-items: center;
}

.sl-timeline-track {
    width: 100%;
    height: 16px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.sl-timeline-track-bg {
    width: 100%;
    height: 4px;
    background: var(--border, #3c3c3c);
    border-radius: 2px;
    position: relative;
}

.sl-timeline-track-fill {
    height: 100%;
    background: var(--accent, #58a6ff);
    border-radius: 2px;
    pointer-events: none;
}

.sl-timeline-thumb {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--accent, #58a6ff);
    border: 2px solid var(--bg-primary, #0d1117);
    border-radius: 50%;
    transform: translateX(-50%);
    top: 50%;
    margin-top: -6px;
    cursor: pointer;
    z-index: 2;
    transition: transform 0.1s, box-shadow 0.1s;
}

.sl-timeline-thumb:hover,
.sl-timeline-slider.dragging .sl-timeline-thumb {
    transform: translateX(-50%) scale(1.2);
    box-shadow: 0 0 8px var(--accent, #58a6ff);
}

/* Tooltip on thumb - shows seek time when dragging */
.sl-timeline-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 2px 6px;
    background: var(--bg-secondary, #1e1e1e);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 3px;
    color: var(--text-primary, #c9d1d9);
    font-family: var(--font-code, monospace);
    font-size: 10px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    margin-bottom: 4px;
    transition: opacity 0.1s;
}

.sl-timeline-slider.dragging .sl-timeline-tooltip {
    opacity: 1;
}

/* ========================================
   CHECKBOX - Standard tick box
   ======================================== */

.sl-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
}

.sl-checkbox.disabled {
    opacity: 0.5;
    cursor: default;
    pointer-events: none;
}

.sl-checkbox-box {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    cursor: pointer;
    touch-action: manipulation; /* Faster tap response on mobile */
}

.sl-checkbox:hover .sl-checkbox-box {
    border-color: var(--accent);
}

.sl-checkbox.checked .sl-checkbox-box {
    background: var(--accent);
    border-color: var(--accent);
}

.sl-checkbox-check {
    width: 10px;
    height: 10px;
    opacity: 0;
    color: var(--bg-primary);
    font-size: 10px;
    line-height: 1;
    transition: opacity 0.1s ease;
}

.sl-checkbox.checked .sl-checkbox-check {
    opacity: 1;
}

.sl-checkbox-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

/* ========================================
   UNIFORM BOOL - Checkbox with editable title
   ======================================== */

.sl-uniform-bool {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 5px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    cursor: pointer;
    user-select: none;
    transition: all 0.15s ease;
}

.sl-uniform-bool:hover {
    border-color: var(--border-focus);
}

.sl-uniform-bool .sl-checkbox-box {
    width: 14px;
    height: 14px;
}

.sl-uniform-bool .sl-checkbox-check {
    width: 8px;
    height: 8px;
    font-size: 8px;
}

/* Checked state for uniform bool */
.sl-uniform-bool.checked .sl-checkbox-box {
    background: var(--accent);
    border-color: var(--accent);
}

.sl-uniform-bool.checked .sl-checkbox-check {
    opacity: 1;
}

.sl-uniform-bool-label {
    padding: 1px 2px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.65rem;
    cursor: default;
    min-width: 35px;
    width: 55px;
}

.sl-uniform-bool-label:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: text;
}

/* ========================================
   BOOL STACK - Fluid row container
   ======================================== */

.sl-bool-stack {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 4px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.sl-bool-stack-items {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.sl-bool-stack-add {
    align-self: flex-start;
    padding: 3px 8px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-bool-stack-add:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ========================================
   UNIFORM PANEL - Complete uniform editor
   ======================================== */

.sl-uniform-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sl-uniform-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-uniform-section-title {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sl-uniform-panel-actions {
    display: flex;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.sl-uniform-randomize {
    flex: 1;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.sl-uniform-randomize:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-hover);
}

.sl-uniform-preset {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.sl-uniform-preset:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-hover);
}

/* ========================================
   PRESET SYSTEM
   ======================================== */

.sl-preset-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.sl-preset-row {
    display: flex;
    gap: 4px;
    align-items: center;
}

.sl-preset-select {
    flex: 1;
    padding: 4px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    font-size: 0.7rem;
    cursor: pointer;
}

.sl-preset-select:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-preset-load {
    padding: 4px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-secondary);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-preset-load:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.sl-preset-name {
    flex: 1;
    padding: 4px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-primary);
    font-size: 0.7rem;
}

.sl-preset-name:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-preset-save {
    padding: 4px 8px;
    background: var(--accent);
    border: 1px solid var(--accent);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--bg-primary);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-preset-save:hover {
    filter: brightness(1.1);
}

.sl-preset-delete {
    padding: 4px 6px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-preset-delete:hover {
    border-color: #e74c3c;
    color: #e74c3c;
}

/* ========================================
   COLOR PICKER
   ======================================== */

.sl-color-picker {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.sl-color-picker-header {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sl-color-picker-swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: transform 0.1s ease;
}

.sl-color-picker-swatch:hover {
    transform: scale(1.1);
}

.sl-color-picker-label {
    flex: 1;
    padding: 2px 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.7rem;
    cursor: default;
}

.sl-color-picker-label:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
    cursor: text;
}

.sl-color-picker-hex {
    width: 65px;
    padding: 2px 4px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.65rem;
    text-align: center;
}

.sl-color-picker-hex:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-color-picker-sliders {
    display: none;
    flex-direction: column;
    gap: 3px;
    padding-top: 4px;
}

.sl-color-picker.expanded .sl-color-picker-sliders {
    display: flex;
}

.sl-color-channel {
    display: flex;
    align-items: center;
    gap: 4px;
}

.sl-color-channel-label {
    width: 12px;
    font-size: 0.6rem;
    color: var(--text-muted);
    text-align: center;
}

.sl-color-channel .sl-slider-track {
    flex: 1;
    height: 16px;
}

.sl-color-channel .sl-slider-track-bg {
    height: 14px;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.3);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.2);
}

/* Hide the fill element for color gradient tracks */
.sl-color-channel .sl-slider-track-fill {
    display: none;
}

.sl-color-channel .sl-slider-thumb {
    width: 8px;
    height: 16px;
    border-radius: 2px;
    background: rgba(255,255,255,0.3);
    border: 2px solid white;
    box-shadow: 0 0 3px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(0,0,0,0.2);
    margin-top: 0;
}

/* Override ALL theme effects for color picker - need true colors */
.sl-color-channel .sl-slider-track-bg,
[data-theme] .sl-color-channel .sl-slider-track-bg,
[data-theme="designer"] .sl-color-channel .sl-slider-track-bg,
[data-theme="midnight"] .sl-color-channel .sl-slider-track-bg,
[data-theme="forest"] .sl-color-channel .sl-slider-track-bg {
    box-shadow: none !important;
    filter: none !important;
    opacity: 1 !important;
    border: 1px solid rgba(0,0,0,0.4) !important;
}

.sl-color-channel .sl-slider-thumb,
[data-theme] .sl-color-channel .sl-slider-thumb,
[data-theme="designer"] .sl-color-channel .sl-slider-thumb {
    box-shadow: 0 0 3px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(0,0,0,0.2) !important;
}

.sl-color-channel-value {
    width: 32px;
    padding: 1px 2px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.6rem;
    text-align: center;
}

.sl-color-channel-value:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-color-picker-toggle {
    padding: 2px 4px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.6rem;
    cursor: pointer;
}

.sl-color-picker-toggle:hover {
    color: var(--accent);
}

/* ========================================
   VEC3 PICKER - 3D Position/Normal
   ======================================== */

.sl-vec3-picker {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.sl-vec3-picker-header {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sl-vec3-picker-label {
    flex: 1;
    padding: 2px 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.7rem;
    cursor: default;
}

.sl-vec3-picker-label:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
    cursor: text;
}

.sl-vec3-picker-values {
    display: flex;
    gap: 2px;
    font-family: var(--font-code);
    font-size: 0.6rem;
    color: var(--text-muted);
}

.sl-vec3-picker-value {
    width: 40px;
    padding: 2px 3px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.6rem;
    text-align: center;
}

.sl-vec3-picker-value:focus {
    outline: none;
    border-color: var(--accent);
}

.sl-vec3-picker-value.x { border-left: 2px solid #e74c3c; }
.sl-vec3-picker-value.y { border-left: 2px solid #2ecc71; }
.sl-vec3-picker-value.z { border-left: 2px solid #3498db; }

.sl-vec3-picker-canvas-container {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding-top: 4px;
}

.sl-vec3-picker.expanded .sl-vec3-picker-canvas-container {
    display: flex;
}

.sl-vec3-picker-canvas {
    width: 100%;
    height: 120px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: crosshair;
    touch-action: none; /* Prevent scroll on touch */
}

.sl-vec3-picker-z-row {
    display: flex;
    align-items: center;
    gap: 4px;
}

.sl-vec3-picker-z-label {
    font-size: 0.6rem;
    color: #3498db;
    width: 12px;
}

.sl-vec3-picker-z-slider {
    flex: 1;
}

.sl-vec3-picker-toggle {
    padding: 2px 4px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.6rem;
    cursor: pointer;
}

.sl-vec3-picker-toggle:hover {
    color: var(--accent);
}

.sl-vec3-picker-normalize {
    padding: 2px 6px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--text-muted);
    font-size: 0.55rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-vec3-picker-normalize:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.sl-vec3-picker-normalize.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

/* ========================================
   COLOR UNIFORM (new style - swatch + popup)
   ======================================== */

.sl-color-uniform {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.sl-color-uniform-swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: transform 0.1s ease, border-color 0.15s ease;
    flex-shrink: 0;
}

.sl-color-uniform-swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent);
}

.sl-color-uniform-native {
    display: none;
}

.sl-color-uniform.native-mode .sl-color-uniform-native {
    display: block;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    background: none;
    flex-shrink: 0;
}

.sl-color-uniform.native-mode .sl-color-uniform-native::-webkit-color-swatch-wrapper {
    padding: 0;
}

.sl-color-uniform.native-mode .sl-color-uniform-native::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}

.sl-color-uniform.native-mode .sl-color-uniform-native::-moz-color-swatch {
    border: none;
    border-radius: 3px;
}

.sl-color-uniform.native-mode .sl-color-uniform-swatch {
    display: none;
}

.sl-color-uniform-label {
    flex: 1;
    min-width: 60px;
    padding: 2px 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.7rem;
    cursor: text;
}

.sl-color-uniform-label:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
}

.sl-color-uniform-hex {
    font-family: var(--font-code);
    font-size: 0.65rem;
    color: var(--text-muted);
    min-width: 55px;
    text-align: right;
    flex-shrink: 0;
}

/* Single-line layout - all elements inline */
.sl-color-uniform-label-readonly {
    cursor: default;
    border: none !important;
    background: transparent !important;
}

/* Alpha controls - inline */
.sl-color-uniform-alpha-label {
    font-family: var(--font-code);
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-left: 8px;
    flex-shrink: 0;
}

.sl-color-uniform-alpha-track {
    width: 60px;
    height: 14px;
    border-radius: 3px;
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: pointer;
    margin: 0 4px;
    flex-shrink: 0;
}

.sl-color-uniform-alpha-bg {
    position: relative;
    width: 100%;
    height: 100%;
}

.sl-color-uniform-alpha-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 12px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.sl-color-uniform-alpha-value {
    font-family: var(--font-code);
    font-size: 0.65rem;
    color: var(--text-muted);
    width: 28px;
    text-align: right;
    flex-shrink: 0;
}

/* ========================================
   COLOR/VEC3 STACKS
   ======================================== */

.sl-color-stack,
.sl-vec3-stack {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-color-stack-header {
    display: flex;
    justify-content: flex-end;
    padding-bottom: 4px;
}

.sl-color-stack-colors {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sl-color-stack-add,
.sl-vec3-stack-add {
    align-self: flex-start;
    padding: 3px 8px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sl-color-stack-add:hover,
.sl-vec3-stack-add:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ========================================
   TABS COMPONENT
   ======================================== */

.sl-tabs {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.sl-tabs.bottom {
    flex-direction: column-reverse;
}

.sl-tabs.left {
    flex-direction: row;
}

.sl-tabs.right {
    flex-direction: row-reverse;
}

/* Tab Bar */
.sl-tabs-bar {
    display: flex;
    gap: 2px;
    background-color: var(--toolbar-bg);
    background-image: var(--toolbar-bg-image, none);
    background-size: var(--toolbar-bg-size, cover);
    background-position: var(--toolbar-bg-position, center);
    background-repeat: var(--toolbar-bg-repeat, no-repeat);
    background-blend-mode: var(--toolbar-bg-blend, normal);
    padding: 4px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    overflow-x: auto;
    flex-shrink: 0;
}

.sl-tabs.bottom .sl-tabs-bar {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.sl-tabs.left .sl-tabs-bar,
.sl-tabs.right .sl-tabs-bar {
    flex-direction: column;
    overflow-x: visible;
    overflow-y: auto;
}

.sl-tabs.left .sl-tabs-bar {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.sl-tabs.right .sl-tabs-bar {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* Tab Button */
.sl-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

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

.sl-tab.active {
    background: var(--bg-panel);
    color: var(--text-primary);
    box-shadow: 0 1px 3px var(--shadow);
}

.sl-tab-icon {
    font-size: 1rem;
}

.sl-tab-label {
    font-weight: 500;
}

.sl-tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 4px;
    margin-right: -4px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition);
}

.sl-tab:hover .sl-tab-close {
    opacity: 1;
}

.sl-tab-close:hover {
    background: var(--error);
    color: white;
}

.sl-tab-add {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: calc(var(--border-radius) * 0.5);
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition);
}

.sl-tab-add:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
    color: var(--accent);
}

/* Tab dragging */
.sl-tab.dragging {
    opacity: 0.5;
}

.sl-tab.drag-over {
    background: var(--bg-active);
}

/* Tab Content */
.sl-tabs-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.sl-tabs.bottom .sl-tabs-content {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.sl-tabs.left .sl-tabs-content {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.sl-tabs.right .sl-tabs-content {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.sl-tab-panel {
    padding: 12px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

/* Tabs Variants */

/* Pills variant */
.sl-tabs.pills .sl-tabs-bar {
    background: transparent;
    gap: 4px;
}

.sl-tabs.pills .sl-tab {
    border-radius: 999px;
}

.sl-tabs.pills .sl-tab.active {
    background: var(--accent);
    color: var(--text-inverse);
}

/* Underline variant */
.sl-tabs.underline .sl-tabs-bar {
    background: transparent;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding-bottom: 0;
}

.sl-tabs.underline .sl-tab {
    border-radius: 0;
    padding-bottom: 12px;
    margin-bottom: -1px;
    border-bottom: 2px solid transparent;
}

.sl-tabs.underline .sl-tab.active {
    background: transparent;
    box-shadow: none;
    border-bottom-color: var(--accent);
    color: var(--accent);
}

.sl-tabs.underline .sl-tabs-content {
    border-radius: 0;
}

/* ========================================
   TABPANE COMPONENT - Advanced draggable tabs
   ======================================== */

.sl-tabpane {
    display: flex;
    flex-direction: column;
    min-height: 0;
    flex: 1;
}

.sl-tabpane-bar {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 4px 0 4px;
    background-color: var(--toolbar-bg);
    background-image: var(--toolbar-bg-image, none);
    background-size: var(--toolbar-bg-size, cover);
    background-position: var(--toolbar-bg-position, center);
    background-repeat: var(--toolbar-bg-repeat, no-repeat);
    background-blend-mode: var(--toolbar-bg-blend, normal);
    border-bottom: 1px solid var(--border);
    min-height: 32px;
    position: relative;
    flex-wrap: wrap;
}

.sl-tabpane-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
    white-space: nowrap;
    max-width: 180px;
}

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

.sl-tabpane-tab.active {
    background: var(--bg-panel);
    color: var(--text-primary);
    border-bottom: 1px solid var(--bg-panel);
    margin-bottom: -1px;
}

.sl-tabpane-tab-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.sl-tabpane-tab-icon img {
    height: 16px;
    width: auto;
    object-fit: contain;
}

.sl-tabpane-tab-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sl-tabpane-tab-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-left: 2px;
    margin-right: -4px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition);
}

.sl-tabpane-tab:hover .sl-tabpane-tab-close {
    opacity: 0.7;
}

.sl-tabpane-tab-close:hover {
    opacity: 1;
    background: var(--error);
    color: white;
}

.sl-tabpane-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    background: var(--bg-panel);
}

.sl-tabpane-panel {
    height: 100%;
}

/* Drag ghost */
.sl-tabpane-drag-ghost {
    position: fixed;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -100%);
    opacity: 0.95;
}

/* Drop indicator */
.sl-tabpane-drop-indicator {
    position: absolute;
    top: 4px;
    bottom: 0;
    width: 2px;
    background: var(--accent);
    border-radius: 1px;
    opacity: 0;
    transition: opacity 0.1s ease;
    pointer-events: none;
    z-index: 10;
}

.sl-tabpane-drop-indicator.visible {
    opacity: 1;
}

/* Pane states */
.sl-tabpane.dragging-tab .sl-tabpane-tab {
    pointer-events: none;
}

.sl-tabpane.drop-target .sl-tabpane-bar {
    background-color: var(--bg-active);
}

/* Body state during tab drag */
body.sl-tab-dragging {
    cursor: grabbing !important;
}

body.sl-tab-dragging * {
    cursor: grabbing !important;
}

/* Mobile adjustments */
.sl-app[data-mode="mobile"] .sl-tabpane-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
}

.sl-app[data-mode="mobile"] .sl-tabpane-tab {
    padding: 8px 12px;
}

.sl-app[data-mode="mobile"] .sl-tabpane-tab-close {
    opacity: 0.7;
    width: 20px;
    height: 20px;
}

/* ========================================
   TABBED WINDOW - Window with integrated TabPane
   ======================================== */

/* .sl-tabbed-window inherits from .sl-window - no additional styles needed */

.sl-tabbed-window-body {
    display: flex;
    flex-direction: column;
}

.sl-tabbed-window-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.sl-tabbed-window-content .sl-tabpane {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sl-tabbed-window-content .sl-tabpane-bar {
    border-radius: 0;
    /* Inherit toolbar-bg and image from base .sl-tabpane-bar */
}

.sl-tabbed-window-content .sl-tabpane-content {
    flex: 1;
    min-height: 0;
}

/* Visual feedback when a tab can be dropped on this window */
.sl-tabbed-window-body.tab-drop-ready {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.sl-tabbed-window-body.tab-drop-ready .sl-tabpane-bar {
    background-color: var(--bg-active);
}

/* Theme-specific styles */
[data-theme="hacker"] .sl-slider-thumb,
[data-theme="hacker"] .sl-range-slider-thumb {
    filter: drop-shadow(var(--glow));
}

[data-theme="hacker"] .sl-tab.active {
    text-shadow: var(--glow);
}

[data-theme="designer"] .sl-slider-track-bg,
[data-theme="designer"] .sl-range-slider-track::before,
[data-theme="designer"] .sl-timeline-track-bg {
    box-shadow: var(--neumorphic-inset);
    border: none;
}

[data-theme="designer"] .sl-slider-thumb,
[data-theme="designer"] .sl-range-slider-thumb {
    box-shadow: var(--neumorphic-raised);
}

[data-theme="designer"] .sl-tab.active {
    box-shadow: var(--neumorphic-raised);
}

/* ========================================
   SHADER CONTROLS BAR (V2)
   ======================================== */

.v2-shader-controls-bar {
    display: flex;
    flex-direction: column;
    background: var(--bg-tertiary, #21262d);
    font-size: 12px;
    color: var(--text-primary, #c9d1d9);
    border-top: 1px solid var(--border, rgba(255,255,255,0.1));
    user-select: none;
}

.v2-shader-controls-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
}

.v2-shader-controls-row:first-child {
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.05));
}

/* .v2-shader-ctrl-btn has been replaced by .sl-ctrl-btn (see CTRL BUTTON section) */

.v2-shader-controls-separator {
    width: 1px;
    height: 18px;
    background: var(--border, rgba(255,255,255,0.15));
    margin: 0 4px;
}

.v2-shader-controls-info {
    font-size: 11px;
    font-family: var(--font-code, monospace);
    color: var(--text-secondary, #8b949e);
    padding: 2px 6px;
    background: var(--bg-primary, #0d1117);
    border-radius: 3px;
    min-width: 50px;
    text-align: center;
}

.v2-shader-controls-info-row {
    gap: 8px;
    padding: 4px 10px;
}

.v2-shader-controls-info-row span {
    font-family: var(--font-code, 'JetBrains Mono', monospace);
    font-size: 11px;
    color: var(--text-muted, #8b949e);
}