/* ============================================================
   4D Game Studio Editor – Master Stylesheet
   Dark theme, dockable/resizable panels, CSS Grid layout
   ============================================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Surface colors — refined dark with warm undertone */
    --bg-primary:       #0c1017;
    --bg-secondary:     #111620;
    --bg-tertiary:      #171d2a;
    --bg-panel:         #0f1420;
    --bg-panel-header:  #141a26;
    --bg-input:         #0a0f18;
    --bg-hover:         #1c2333;
    --bg-active:        #243044;
    --bg-toolbar:       #0e1319;
    --bg-dropdown:      #121824;

    /* Text colors */
    --text-primary:     #d4dae8;
    --text-secondary:   #7a8698;
    --text-muted:       #4a5468;
    --text-accent:      #00e5ff;
    --text-warning:     #ffab40;
    --text-error:       #ff5252;
    --text-success:     #69f0ae;

    /* Accent / brand — teal/cyan */
    --accent-primary:   #00bcd4;
    --accent-secondary: #00e5ff;
    --accent-glow:      rgba(0, 229, 255, 0.15);
    --accent-border:    #1c2333;

    /* Frosted glass tokens */
    --glass-bg:         rgba(14, 20, 32, 0.6);
    --glass-border:     rgba(255, 255, 255, 0.06);
    --glass-blur:       blur(16px);

    /* Gizmo axis colors */
    --axis-x:           #ff4444;
    --axis-y:           #44ff44;
    --axis-z:           #4488ff;
    --axis-w:           #ffaa00;

    /* Sizing */
    --toolbar-height:   42px;
    --dashboard-height: 48px;
    --panel-min-width:  200px;
    --panel-default-left:  280px;
    --panel-default-right: 300px;
    --panel-bottom-height: 180px;
    --border-radius:    6px;
    --scrollbar-width:  8px;

    /* Transitions */
    --transition-fast:  0.15s ease;
    --transition-med:   0.25s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-primary);
    background: var(--bg-primary);
    user-select: none;
    -webkit-user-select: none;
}

/* --- Scrollbar Styling --- */
::-webkit-scrollbar {
    width: var(--scrollbar-width);
    height: var(--scrollbar-width);
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--accent-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* --- Main Layout (CSS Grid) --- */
#app-container {
    display: grid;
    width: 100vw;
    height: 100vh;
    grid-template-rows: var(--toolbar-height) var(--dashboard-height) 1fr var(--panel-bottom-height);
    grid-template-columns: var(--panel-default-left) 1fr var(--panel-default-right);
    grid-template-areas:
        "toolbar    toolbar    toolbar"
        "dashboard  dashboard  dashboard"
        "outliner   viewport   inspector"
        "assets     assets     assets";
    gap: 1px;
    background: var(--accent-border);
}

/* --- Play mode: hide all UI --- */
#app-container.play-mode #toolbar,
#app-container.play-mode #dashboard,
#app-container.play-mode #outliner-panel,
#app-container.play-mode #inspector-panel,
#app-container.play-mode #assets-panel {
    display: none !important;
}
#app-container.play-mode {
    grid-template-rows: 1fr;
    grid-template-columns: 1fr;
    grid-template-areas: "viewport";
}
#app-container.play-mode #viewport {
    border: none;
}

/* --- Toolbar --- */
#toolbar {
    grid-area: toolbar;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    z-index: 100;
    overflow: visible;
    min-width: 0;
}
#toolbar-scroll {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 8px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    flex-wrap: nowrap;
    height: 100%;
}
#toolbar-scroll::-webkit-scrollbar {
    height: 3px;
}
#toolbar-scroll::-webkit-scrollbar-track {
    background: transparent;
}
#toolbar-scroll::-webkit-scrollbar-thumb {
    background: var(--accent-border);
    border-radius: 2px;
}
#toolbar-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0 6px;
    border-right: 1px solid var(--accent-border);
    flex-shrink: 0;
}
.toolbar-group:last-child {
    border-right: none;
}

.toolbar-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
    transition: all var(--transition-fast);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
    height: 30px;
}
.toolbar-btn-accent {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
.toolbar-btn-accent:hover {
    background: #00e5ff;
    border-color: #00e5ff;
    color: #0c1017;
}
.toolbar-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-border);
}
.toolbar-btn:active,
.toolbar-btn.active {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
.toolbar-btn.play-btn {
    color: var(--text-success);
    font-weight: 600;
}
.toolbar-btn.stop-btn {
    color: var(--text-error);
    font-weight: 600;
    display: none;
}
.toolbar-btn.danger {
    color: var(--text-error);
}
.toolbar-btn .icon {
    font-size: 14px;
}

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

.toolbar-logo {
    height: 22px;
    width: auto;
    filter: invert(1) brightness(1.6);
    opacity: 0.9;
    margin-right: 6px;
}
.toolbar-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-right: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* --- Toolbar Dropdown Groups --- */
.toolbar-dropdown {
    position: relative;
}
.toolbar-dropdown-toggle {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    user-select: none;
    display: flex;
    align-items: center;
    gap: 3px;
}
.toolbar-dropdown-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.dropdown-arrow {
    font-size: 8px;
    opacity: 0.5;
    transition: transform 0.2s ease;
}
.toolbar-dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}
.toolbar-dropdown-panel {
    display: none;
    position: fixed;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    z-index: 200;
    padding: 4px;
    min-width: 120px;
    flex-direction: column;
    gap: 2px;
}
.toolbar-dropdown.open .toolbar-dropdown-panel {
    display: flex;
}
.toolbar-dropdown-panel .toolbar-btn {
    width: 100%;
    justify-content: flex-start;
}

/* --- Toolbar "More..." collapse sections --- */
.toolbar-more-toggle {
    position: relative;
    color: var(--accent-primary) !important;
    font-size: 11px !important;
    opacity: 0.85;
}
.toolbar-more-toggle:hover {
    opacity: 1;
    background: var(--bg-hover) !important;
}
.toolbar-more-toggle.open .icon {
    display: inline-block;
    transform: rotate(45deg);
}
.toolbar-more-section {
    display: none;
    flex-direction: column;
    position: fixed;
    z-index: 9999;
    background: var(--bg-panel);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    padding: 4px;
    min-width: 160px;
    max-height: 70vh;
    overflow-y: auto;
}
.toolbar-more-section.open {
    display: flex;
}
.toolbar-more-section .toolbar-btn {
    width: 100%;
    justify-content: flex-start;
    white-space: nowrap;
}
.toolbar-more-divider {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 6px 8px 2px;
    border-top: 1px solid var(--accent-border);
    margin-top: 4px;
    user-select: none;
}

/* On wide screens (4K / 1440p+), show buttons inline instead of dropdown */
@media (min-width: 1600px) {
    .toolbar-dropdown-panel {
        display: flex !important;
        position: static !important;
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
        min-width: unset;
        flex-direction: row;
        gap: 2px;
    }
    .toolbar-dropdown-panel .toolbar-btn {
        width: auto;
    }
    .dropdown-arrow {
        display: none;
    }
    .toolbar-dropdown-toggle {
        cursor: default;
        padding: 0;
    }
    .toolbar-dropdown-toggle:hover {
        background: transparent;
        color: var(--text-muted);
    }
    /* "More..." sections must stay as popups, not inline */
    .toolbar-more-section {
        display: none !important;
        position: fixed !important;
        flex-direction: column !important;
        background: var(--bg-panel) !important;
        border: 1px solid var(--accent-border) !important;
        box-shadow: 0 8px 24px rgba(0,0,0,0.5) !important;
        padding: 4px !important;
        min-width: 160px !important;
    }
    .toolbar-more-section.open {
        display: flex !important;
    }
    .toolbar-more-section .toolbar-btn {
        width: 100% !important;
        justify-content: flex-start !important;
    }
    /* More toggle button styling on widescreen */
    .toolbar-more-toggle {
        border-left: 1px solid var(--accent-border);
        margin-left: 2px;
        padding-left: 6px;
    }
    /* No scrollbar needed on wide screens */
    #toolbar-scroll {
        overflow-x: visible;
    }
}

/* --- Responsive: <= 1599px (1080p, 1440p narrow) --- */
@media (max-width: 1599px) {
    /* Dashboard: hide secondary stats */
    .dash-secondary {
        display: none !important;
    }
    #dashboard {
        gap: 12px;
    }
    /* Toolbar: compact buttons */
    .toolbar-btn {
        padding: 3px 6px;
        font-size: 11px;
        height: 28px;
        gap: 3px;
    }
    .toolbar-btn .icon {
        font-size: 12px;
    }
    .toolbar-group {
        padding: 0 4px;
    }
    /* Hide text labels on file/physics buttons — icon-only */
    .btn-label {
        display: none;
    }
}
/* --- Responsive: <= 1279px (very small) --- */
@media (max-width: 1279px) {
    .toolbar-logo {
        display: none;
    }
    .toolbar-title {
        display: none;
    }
    #dashboard {
        gap: 8px;
        font-size: 11px;
    }
    .dash-item.dash-slider-group {
        max-width: 160px;
    }
}

/* --- Dashboard --- */
#dashboard {
    grid-area: dashboard;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 20px;
    font-size: 12px;
    border-bottom: 1px solid var(--glass-border);
    overflow-x: auto;
}

.dash-item {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}
.dash-label {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: 0.8px;
}
.dash-value {
    color: var(--text-accent);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    min-width: 40px;
}
.dash-value.warning {
    color: var(--text-warning);
}
.dash-value.error {
    color: var(--text-error);
}

.dash-separator {
    width: 1px;
    height: 28px;
    background: var(--accent-border);
}

/* MT status dot */
.mt-status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #666;
    flex-shrink: 0;
}
.mt-status-dot.mt-off    { background: #f44336; box-shadow: 0 0 4px #f4433688; }
.mt-status-dot.mt-standby { background: #ff9800; box-shadow: 0 0 4px #ff980088; }
.mt-status-dot.mt-active  { background: #4caf50; box-shadow: 0 0 4px #4caf5088; }

/* w-Slice slider in dashboard */
.dash-slider-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.dash-slider-group input[type="range"] {
    width: 120px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-input);
    border-radius: 2px;
    outline: none;
}
.dash-slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--axis-w);
    cursor: pointer;
    border: 2px solid var(--bg-panel);
}

/* --- Panels (generic) --- */
.panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.panel-header {
    background: rgba(14, 20, 32, 0.45);
    padding: 6px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 28px;
    cursor: default;
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 6px;
}

/* Resize handles */
.panel-resize-handle {
    position: absolute;
    z-index: 50;
    background: transparent;
}
.panel-resize-handle:hover,
.panel-resize-handle.active {
    background: var(--accent-primary);
}
.panel-resize-handle.horizontal {
    width: 4px;
    top: 0;
    bottom: 0;
    cursor: col-resize;
}
.panel-resize-handle.vertical {
    height: 4px;
    left: 0;
    right: 0;
    cursor: row-resize;
}
#outliner-panel .panel-resize-handle.horizontal {
    right: -2px;
}
#inspector-panel .panel-resize-handle.horizontal {
    left: -2px;
}
#assets-panel .panel-resize-handle.vertical {
    top: -2px;
}

/* --- Outliner Panel --- */
#outliner-panel {
    grid-area: outliner;
}

.outliner-tree {
    list-style: none;
    padding: 0;
    margin: 0;
}

.outliner-item {
    padding: 4px 8px;
    cursor: pointer;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    transition: background var(--transition-fast);
}
.outliner-item:hover {
    background: var(--bg-hover);
}
.outliner-item.selected {
    background: var(--accent-primary);
    color: #fff;
}
.outliner-item .item-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}
.outliner-item .item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.outliner-item .item-visibility {
    opacity: 0.4;
    cursor: pointer;
    font-size: 14px;
}
.outliner-item .item-visibility:hover {
    opacity: 1;
}
.outliner-item .item-indent {
    width: 16px;
    flex-shrink: 0;
}

/* --- Inspector Panel --- */
#inspector-panel {
    grid-area: inspector;
}

.inspector-section {
    margin-bottom: 8px;
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.inspector-section-header {
    background: var(--bg-panel-header);
    padding: 5px 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}
.inspector-section-header:hover {
    background: var(--bg-hover);
}
.inspector-section-header .collapse-icon {
    transition: transform var(--transition-fast);
    font-size: 10px;
}
.inspector-section-header .collapse-icon.collapsed {
    transform: rotate(-90deg);
}

.inspector-section-body {
    padding: 6px 8px;
}
.inspector-section-body.collapsed {
    display: none;
}

/* Property rows */
.prop-row {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    gap: 6px;
}
.prop-label {
    width: 28px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    text-align: right;
    flex-shrink: 0;
}
.prop-label.axis-x { color: var(--axis-x); }
.prop-label.axis-y { color: var(--axis-y); }
.prop-label.axis-z { color: var(--axis-z); }
.prop-label.axis-w { color: var(--axis-w); }

.prop-input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 3px 6px;
    font-size: 12px;
    font-family: 'Consolas', 'Courier New', monospace;
    outline: none;
    transition: border-color var(--transition-fast);
    min-width: 0;
}
.prop-input:focus {
    border-color: var(--accent-primary);
}
.prop-input:hover {
    border-color: var(--accent-secondary);
}

/* 4D rotation grid (6 planes) */
.rotation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}
.rotation-plane {
    display: flex;
    align-items: center;
    gap: 4px;
}
.rotation-plane .plane-label {
    font-size: 10px;
    color: var(--text-muted);
    width: 24px;
    text-align: right;
}

/* Color picker */
.prop-color {
    width: 28px;
    height: 22px;
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    padding: 0;
    background: none;
}

/* Checkbox */
.prop-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary);
}

/* Select dropdown */
.prop-select {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 3px 6px;
    font-size: 12px;
    outline: none;
    cursor: pointer;
}
.prop-select:focus {
    border-color: var(--accent-primary);
}

/* --- Viewport --- */
#viewport {
    grid-area: viewport;
    position: relative;
    overflow: hidden;
    background: #0a0e14;
    cursor: crosshair;
}
#viewport canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Viewport overlay info */
.viewport-overlay {
    position: absolute;
    pointer-events: none;
    z-index: 10;
}
.viewport-info-tl {
    top: 8px;
    left: 8px;
    font-size: 11px;
    color: var(--text-muted);
}
.viewport-info-br {
    bottom: 8px;
    right: 8px;
    font-size: 11px;
    color: var(--text-muted);
    text-align: right;
}
.viewport-crosshair {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    display: none;
}
.viewport-crosshair::before,
.viewport-crosshair::after {
    content: '';
    position: absolute;
    background: rgba(255,255,255,0.5);
}
.viewport-crosshair::before {
    width: 2px;
    height: 100%;
    left: 50%;
    transform: translateX(-50%);
}
.viewport-crosshair::after {
    width: 100%;
    height: 2px;
    top: 50%;
    transform: translateY(-50%);
}
#app-container.play-mode .viewport-crosshair {
    display: block;
}
.viewport-crosshair.crosshair-hit::before,
.viewport-crosshair.crosshair-hit::after {
    background: var(--text-accent);
}
.viewport-crosshair.crosshair-hit {
    width: 24px;
    height: 24px;
}
/* Shooter: crosshair recoil animation */
.viewport-crosshair.crosshair-fire {
    animation: crosshairRecoil 0.12s ease-out;
}
.viewport-crosshair.crosshair-fire::before,
.viewport-crosshair.crosshair-fire::after {
    background: #ff4400;
}
@keyframes crosshairRecoil {
    0% { transform: translate(-50%, -50%) scale(1.6); }
    50% { transform: translate(-50%, -50%) scale(1.3); }
    100% { transform: translate(-50%, -50%) scale(1); }
}
/* --- Viewport Navigation Controls (bottom-left) --- */
.viewport-nav-controls {
    position: absolute;
    bottom: 32px;
    left: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    z-index: 15;
    pointer-events: auto;
}
#app-container.play-mode .viewport-nav-controls {
    display: none;
}
.vp-ctrl-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 25, 35, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 5px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    backdrop-filter: blur(6px);
    padding: 0;
    line-height: 1;
}
.vp-ctrl-btn:hover {
    background: rgba(30, 40, 60, 0.9);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}
.vp-ctrl-btn.active {
    background: rgba(var(--accent-primary-rgb, 100, 180, 255), 0.25);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}
.vp-ctrl-btn svg {
    width: 16px;
    height: 16px;
}
.vp-ctrl-sep {
    height: 1px;
    margin: 2px 4px;
    background: rgba(255, 255, 255, 0.06);
}
.vp-help-btn {
    font-size: 15px;
    font-weight: 800;
    font-family: serif;
}

/* --- Camera Lock indicator --- */
.vp-ctrl-btn.cam-locked svg {
    color: var(--accent-primary);
}
.cam-lock-indicator {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(var(--accent-primary-rgb, 100, 180, 255), 0.2);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-size: 11px;
    padding: 3px 12px;
    border-radius: 12px;
    z-index: 15;
    pointer-events: none;
    display: none;
    backdrop-filter: blur(8px);
}
.cam-lock-indicator.visible {
    display: block;
}

/* --- Controls Help Overlay --- */
.viewport-help-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 560px;
    max-width: calc(100% - 32px);
    max-height: calc(100% - 32px);
    background: rgba(12, 16, 24, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    z-index: 50;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
}
.help-overlay-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.help-overlay-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}
.help-overlay-close {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    transition: background 0.15s, color 0.15s;
}
.help-overlay-close:hover {
    background: rgba(255, 80, 80, 0.2);
    color: #ff6666;
    border-color: #ff6666;
}
.help-overlay-body {
    padding: 12px 16px 16px;
    overflow-y: auto;
    max-height: 60vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.help-section {
    min-width: 0;
}
.help-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-primary);
    margin-bottom: 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.help-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    color: var(--text-secondary);
    padding: 2px 0;
    line-height: 1.6;
}
.help-row kbd {
    display: inline-block;
    min-width: 18px;
    padding: 1px 5px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 3px;
    font-size: 10px;
    font-family: inherit;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.5;
}
.help-desc {
    flex: 1;
    color: var(--text-muted);
}

/* Shooter: hit marker */
.hud-crosshair-hit {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 30px; height: 30px;
    pointer-events: none; z-index: 205; display: none;
}
.hud-crosshair-hit.active {
    display: block;
    animation: hitMarkerPop 0.3s ease-out forwards;
}
.hud-crosshair-hit.active::before,
.hud-crosshair-hit.active::after {
    content: ''; position: absolute;
    background: #ff2200; border-radius: 1px;
}
.hud-crosshair-hit.active::before {
    width: 2px; height: 10px;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}
.hud-crosshair-hit.active::after {
    width: 2px; height: 10px;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
}
@keyframes hitMarkerPop {
    0% { opacity: 1; transform: translate(-50%, -50%) scale(1.5); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
}
/* Shooter: muzzle flash */
.shooter-muzzle-flash {
    position: fixed; bottom: 10%; left: 50%;
    transform: translate(-50%, 0);
    width: 60px; height: 60px;
    background: radial-gradient(circle, rgba(255,120,0,0.9) 0%, rgba(255,60,0,0.4) 40%, transparent 70%);
    border-radius: 50%; pointer-events: none; z-index: 200;
    animation: muzzleFlash 0.08s ease-out forwards;
}
@keyframes muzzleFlash {
    0% { opacity: 1; transform: translate(-50%, 0) scale(1.2); }
    100% { opacity: 0; transform: translate(-50%, 0) scale(0.3); }
}

/* --- Assets Panel --- */
#assets-panel {
    grid-area: assets;
}

.assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 6px;
    padding: 4px;
}

.asset-item {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    padding: 8px 4px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 11px;
}
.asset-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
    transform: translateY(-1px);
}
.asset-item .asset-icon {
    font-size: 28px;
    margin-bottom: 4px;
    display: block;
}
.asset-item .asset-name {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* --- Modal / Dialog --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-overlay.hidden {
    display: none;
}
.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 8px 40px rgba(0,0,0,0.6), 0 0 1px rgba(255,255,255,0.05) inset;
}
.modal-header {
    padding: 12px 16px;
    background: rgba(14, 20, 32, 0.4);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 12px 12px 0 0;
}
.modal-header h3 {
    font-size: 14px;
    font-weight: 600;
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--border-radius);
}
.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.modal-body {
    padding: 16px;
}

/* --- Context Menu --- */
.context-menu {
    position: fixed;
    z-index: 999;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    min-width: 160px;
    padding: 4px 0;
    display: none;
}
.context-menu.visible {
    display: block;
}
.context-menu-item {
    padding: 6px 12px;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background var(--transition-fast);
}
.context-menu-item:hover {
    background: var(--bg-hover);
}
.context-menu-separator {
    height: 1px;
    background: var(--accent-border);
    margin: 4px 0;
}

/* --- Notification Toast --- */
.toast-container {
    position: fixed;
    bottom: 16px;
    right: 16px;
    z-index: 2000;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
}
.toast {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 10px 16px;
    font-size: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
    animation: toast-in 0.3s ease;
    max-width: 320px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast.info { border-left: 3px solid var(--accent-secondary); }
.toast.success { border-left: 3px solid var(--text-success); }
.toast.warning { border-left: 3px solid var(--text-warning); }
.toast.error { border-left: 3px solid var(--text-error); }

@keyframes toast-in {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* --- HUD (Play Mode) --- */
.play-hud {
    position: absolute;
    z-index: 200;
    pointer-events: none;
    display: none;
}
#app-container.play-mode .play-hud {
    display: block;
}
.hud-top {
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    text-align: center;
}
.hud-bottom {
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    color: rgba(255,255,255,0.4);
}
.hud-w-indicator {
    top: 12px;
    right: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--axis-w);
    font-family: 'Consolas', monospace;
}
.hud-ground-indicator {
    bottom: 40px;
    right: 12px;
    font-size: 13px;
    font-weight: 600;
    font-family: 'Consolas', monospace;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(0,0,0,0.4);
}

/* --- Loading Screen --- */
#loading-screen {
    position: fixed;
    inset: 0;
    background: #0a0e14;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    transition: opacity 0.6s ease;
}
#loading-screen::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0,229,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}
#loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}
#loading-screen .loader-logo {
    width: 280px;
    height: auto;
    filter: invert(1) brightness(1.8);
    opacity: 0.95;
    margin-bottom: 4px;
}
#loading-screen .loader-title {
    font-size: 14px;
    font-weight: 600;
    color: #00e5ff;
    letter-spacing: 4px;
    text-transform: uppercase;
}
#loading-screen .loader-subtitle {
    font-size: 11px;
    color: #4a5468;
    letter-spacing: 1px;
}
.spinner {
    width: 32px;
    height: 32px;
    border: 2px solid #1c2333;
    border-top-color: #00e5ff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- Utility Classes --- */
.hidden   { display: none !important; }
.flex-row { display: flex; align-items: center; }
.flex-col { display: flex; flex-direction: column; }
.gap-4    { gap: 4px; }
.gap-8    { gap: 8px; }
.ml-auto  { margin-left: auto; }
.text-mono { font-family: 'Consolas', 'Courier New', monospace; }

/* --- Gizmo mode indicator --- */
.gizmo-indicator {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,0.6);
    padding: 4px 10px;
    border-radius: var(--border-radius);
    font-size: 11px;
    color: var(--text-accent);
    z-index: 10;
    pointer-events: none;
}

/* --- Draggable labels (scrub to change value) --- */
.draggable-label {
    cursor: ew-resize !important;
    user-select: none;
    -webkit-user-select: none;
}
.draggable-label:hover {
    text-decoration: underline;
    text-decoration-style: dotted;
}
.draggable-label:active {
    color: var(--text-primary) !important;
}

/* --- Viewport interaction cursors --- */
#viewport.dragging {
    cursor: grabbing !important;
}
#viewport.hover-gizmo {
    cursor: grab;
}

/* --- Toolbar group labels --- */
.toolbar-group-label {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-right: 2px;
    opacity: 0.6;
}
/* On small screens, make dropdown labels more prominent as clickable buttons */
@media (max-width: 1599px) {
    .toolbar-dropdown-toggle {
        font-size: 11px;
        opacity: 1;
        color: var(--text-secondary);
        border: 1px solid var(--accent-border);
        height: 28px;
    }
    .toolbar-dropdown-toggle:hover {
        color: var(--text-primary);
        border-color: var(--accent-primary);
    }
    .toolbar-dropdown.open .toolbar-dropdown-toggle {
        background: var(--accent-primary);
        color: #fff;
        border-color: var(--accent-primary);
    }
}

/* --- Inspector Button --- */
.prop-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 11px;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.prop-btn:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

/* --- Face Selector Bar --- */
.face-selector-bar {
    display: flex;
    gap: 2px;
    padding: 6px 10px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}
.face-btn {
    flex: 1;
    padding: 4px 2px;
    font-size: 10px;
    font-weight: 600;
    text-align: center;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
}
.face-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.face-btn.active {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
.face-btn.has-override::after {
    content: '';
    position: absolute;
    top: 2px;
    right: 2px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #4fc3f7;
}
.face-btn.active.has-override::after {
    background: #fff;
}

/* --- Imported Models Section --- */
.imported-models-section {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 6px;
}

/* --- Asset Browser: Category Labels --- */
.asset-category-label {
    grid-column: 1 / -1;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 6px 4px 2px;
    border-bottom: 1px solid var(--accent-border);
    margin-bottom: 2px;
}

/* --- Texture Thumbnail Grid --- */
.texture-thumb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(52px, 1fr));
    gap: 4px;
    padding: 6px 0;
}

.texture-thumb {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.texture-thumb:hover {
    border-color: var(--accent-secondary);
    background: var(--bg-hover);
}
.texture-thumb.selected {
    border-color: var(--accent-primary);
    background: var(--bg-active);
}
.texture-thumb canvas {
    width: 42px;
    height: 42px;
    border-radius: 2px;
    display: block;
    image-rendering: pixelated;
}
.texture-thumb span {
    font-size: 9px;
    color: var(--text-muted);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 52px;
}

/* --- Quick Shape Buttons --- */
.quick-shape-row {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.quick-btn {
    flex: 1;
    min-width: 60px;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    padding: 4px 6px;
    font-size: 10px;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}
.quick-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-secondary);
}
.quick-btn:active {
    background: var(--accent-primary);
    color: #fff;
}

/* --- Select styling in inspector --- */
.inspector-section-body .prop-select {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 3px 6px;
    font-size: 12px;
    font-family: inherit;
    outline: none;
    cursor: pointer;
    min-width: 0;
}
.inspector-section-body .prop-select:focus {
    border-color: var(--accent-primary);
}

/* --- Snap active indicator on toolbar --- */
#btn-snap.active {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
#btn-snap.active .icon {
    text-shadow: 0 0 6px rgba(0, 229, 255, 0.8);
}

/* --- Dashboard dropdowns (render quality, time-of-day) --- */
#dashboard .prop-select {
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 2px 6px;
    font-size: 11px;
    font-family: inherit;
    outline: none;
    cursor: pointer;
    height: 24px;
}
#dashboard .prop-select:focus {
    border-color: var(--accent-primary);
}
#dashboard .prop-select:hover {
    border-color: var(--accent-secondary);
}

/* --- Physics status indicator --- */
#dash-physics-status {
    font-weight: 600;
    font-size: 11px;
    min-width: 30px;
}

/* --- FX toolbar group icon styling --- */
.toolbar-group .icon[style*="color:#ff6633"] {
    text-shadow: 0 0 4px rgba(255, 102, 51, 0.5);
}
.toolbar-group .icon[style*="color:#ffcc00"] {
    text-shadow: 0 0 4px rgba(255, 204, 0, 0.5);
}

/* --- Physics toggle active state --- */
#btn-physics-toggle.active {
    background: var(--text-success);
    color: #000;
    border-color: var(--text-success);
}

/* --- Modal Overlay --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}
.modal-panel {
    background: var(--bg-panel);
    border: 1px solid var(--accent-border);
    border-radius: 8px;
    width: 420px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: var(--bg-panel-header);
    border-bottom: 1px solid var(--accent-border);
    border-radius: 8px 8px 0 0;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
}
.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.modal-body {
    padding: 12px 16px;
}
.settings-section {
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}
.settings-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.modal-body .prop-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    font-size: 12px;
}
.modal-body .prop-label {
    min-width: 70px;
    color: var(--text-secondary);
    font-size: 11px;
}
.modal-body .prop-select {
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 3px 6px;
    font-size: 11px;
    height: 24px;
    outline: none;
}
.modal-body .prop-checkbox {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-primary);
}
.modal-body input[type="range"] {
    accent-color: var(--accent-primary);
    height: 4px;
}
.modal-body .dash-value {
    font-size: 11px;
    color: var(--text-secondary);
    min-width: 32px;
    font-family: 'Consolas', monospace;
}

/* --- Custom Texture Upload Button --- */
.upload-texture-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border: 1px dashed var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s;
}
.upload-texture-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

/* --- Action/Event badge on objects --- */
.action-badge {
    display: inline-block;
    padding: 1px 5px;
    background: var(--accent-primary);
    color: #fff;
    font-size: 9px;
    border-radius: 3px;
    margin-left: 4px;
    font-weight: 600;
}

/* --- Light object indicator --- */
.light-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-left: 4px;
    box-shadow: 0 0 4px currentColor;
}

/* --- Scrollbar for modal --- */
.modal-panel::-webkit-scrollbar {
    width: 6px;
}
.modal-panel::-webkit-scrollbar-track {
    background: transparent;
}
.modal-panel::-webkit-scrollbar-thumb {
    background: var(--accent-border);
    border-radius: 3px;
}

/* --- Scene Manager --- */
.sm-action-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--accent-border);
    background: var(--bg-panel-header);
    flex-wrap: wrap;
}
.sm-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    padding: 5px 12px;
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}
.sm-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-secondary);
}
.sm-btn-primary {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
.sm-btn-primary:hover {
    background: #9c6dff;
    border-color: #9c6dff;
}
.sm-btn-accent {
    background: var(--bg-tertiary);
    color: var(--text-accent);
    border-color: var(--text-accent);
}
.sm-btn-accent:hover {
    background: var(--text-accent);
    color: #000;
}
.sm-btn-danger {
    color: var(--text-error);
}
.sm-btn-danger:hover {
    background: var(--text-error);
    color: #fff;
    border-color: var(--text-error);
}
.sm-scene-list {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
}
.sm-empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 16px;
    font-size: 12px;
}
.sm-scene-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    margin-bottom: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-secondary);
}
.sm-scene-item:hover {
    border-color: var(--accent-secondary);
    background: var(--bg-hover);
}
.sm-scene-item.selected {
    border-color: var(--accent-primary);
    background: var(--bg-active);
}
.sm-scene-item.active-scene {
    border-left: 3px solid var(--text-success);
}
.sm-scene-info {
    flex: 1;
    min-width: 0;
}
.sm-scene-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sm-scene-name-input {
    background: var(--bg-input);
    border: 1px solid var(--accent-primary);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 2px 6px;
    font-size: 13px;
    font-family: inherit;
    font-weight: 600;
    outline: none;
    width: 100%;
}
.sm-scene-meta {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    display: flex;
    gap: 10px;
}
.sm-scene-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.sm-scene-actions .sm-btn {
    padding: 3px 8px;
    font-size: 10px;
}

/* --- Level Sidebar HUD (Play Mode) --- */
.hud-level-sidebar {
    top: 50px;
    left: 12px;
    width: 180px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 6px;
    padding: 10px;
    pointer-events: none;
    backdrop-filter: blur(4px);
}
.level-sidebar-header {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: rgba(100, 255, 218, 0.6);
    text-transform: uppercase;
    margin-bottom: 4px;
}
.level-sidebar-name {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.level-sidebar-divider {
    height: 1px;
    background: rgba(100, 255, 218, 0.15);
    margin: 8px 0;
}
.level-sidebar-portals-label {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    margin-bottom: 4px;
}
.level-sidebar-portals {
    display: flex;
    flex-direction: column;
    gap: 3px;
    max-height: 200px;
    overflow-y: auto;
}
.level-sidebar-empty {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.25);
    font-style: italic;
}
.level-portal-item {
    font-size: 11px;
    color: rgba(100, 255, 218, 0.8);
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(100, 255, 218, 0.08);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.level-portal-item.active {
    background: rgba(100, 255, 218, 0.2);
    color: #64ffda;
}

/* --- Portal object glow pulse in play mode --- */
@keyframes portal-pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1.0; }
}

/* --- Destruction dust particle style (overlay) --- */
.destruction-flash {
    position: fixed;
    inset: 0;
    background: rgba(255, 200, 100, 0.05);
    pointer-events: none;
    z-index: 100;
    animation: destruct-flash 0.2s ease-out forwards;
}
@keyframes destruct-flash {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* --- FPS HUD Overlay (Play Mode) --- */
.hud-fps-overlay.fps-hidden {
    display: none !important;
}
.hud-fps-overlay {
    top: 12px;
    left: 12px;
    font-size: 14px;
    font-weight: 700;
    font-family: 'Consolas', monospace;
    color: rgba(255, 255, 255, 0.75);
    background: rgba(0, 0, 0, 0.45);
    padding: 4px 10px;
    border-radius: 4px;
    backdrop-filter: blur(2px);
    letter-spacing: 0.5px;
}
.hud-fps-overlay #hud-fps-value {
    color: #4caf50;
    font-size: 16px;
}
.hud-fps-overlay.fps-warning #hud-fps-value {
    color: #ff9800;
}
.hud-fps-overlay.fps-critical #hud-fps-value {
    color: #f44336;
}

/* Speed HUD overlay */
.hud-speed-overlay.speed-hidden {
    display: none !important;
}
.hud-speed-overlay {
    top: 12px;
    left: 12px;
    margin-top: 32px;
    font-size: 14px;
    font-weight: 700;
    font-family: 'Consolas', monospace;
    color: rgba(255, 255, 255, 0.75);
    background: rgba(0, 0, 0, 0.45);
    padding: 4px 10px;
    border-radius: 4px;
    backdrop-filter: blur(2px);
    letter-spacing: 0.5px;
}
.hud-speed-overlay #hud-speed-value {
    color: #00e5ff;
    font-size: 16px;
}
.hud-speed-overlay #hud-speed-unit {
    color: rgba(0, 229, 255, 0.6);
    font-size: 11px;
}

/* Stats HUD overlay (coords + distance) */
.hud-stats-overlay.stats-hidden {
    display: none !important;
}
.hud-stats-overlay {
    top: 12px;
    right: 12px;
    margin-top: 0;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Consolas', monospace;
    color: rgba(255, 255, 255, 0.6);
    background: rgba(0, 0, 0, 0.4);
    padding: 6px 12px;
    border-radius: 4px;
    backdrop-filter: blur(2px);
    letter-spacing: 0.3px;
    line-height: 1.6;
    text-align: right;
}
.hud-stats-overlay #hud-coords {
    color: rgba(0, 229, 255, 0.7);
}
.hud-stats-overlay #hud-distance {
    color: rgba(255, 200, 0, 0.7);
}

/* ── Performance Monitor HUD ── */
.hud-perf-monitor.perf-hidden { display: none !important; }
.hud-perf-monitor {
    position: fixed;
    bottom: 12px;
    left: 12px;
    width: 220px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.82);
    background: rgba(10,10,14,0.88);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 6px;
    backdrop-filter: blur(6px);
    z-index: 9999;
    pointer-events: auto;
    user-select: none;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.5);
}
.perf-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 5px 10px;
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.perf-title { font-weight: 700; font-size: 10px; letter-spacing: 1.5px; color: rgba(255,255,255,0.5); cursor: pointer; }
.perf-collapse-btn {
    font-size: 16px; line-height: 1; cursor: pointer; color: rgba(255,255,255,0.4);
    width: 18px; text-align: center;
}
.perf-collapse-btn:hover { color: #fff; }
.perf-body { padding: 6px 10px 8px; }
.perf-body.collapsed { display: none; }
.perf-row {
    display: flex; align-items: baseline; gap: 4px;
    margin-bottom: 2px; white-space: nowrap; overflow: hidden;
}
.perf-label { color: rgba(255,255,255,0.4); min-width: 68px; flex-shrink: 0; font-size: 10px; }
.perf-val { color: #4caf50; font-weight: 700; font-size: 12px; }
.perf-val-small { font-size: 10px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.perf-val-alert { color: #ff9800; }
.perf-sub { color: rgba(255,255,255,0.35); font-size: 10px; }

/* Mini bar charts */
.perf-bar-wrap {
    width: 100%; height: 4px; background: rgba(255,255,255,0.06);
    border-radius: 2px; margin-bottom: 4px; overflow: hidden;
}
.perf-bar {
    height: 100%; border-radius: 2px;
    transition: width 0.3s ease;
}
.perf-bar-mem { background: #42a5f5; width: 0%; }
.perf-bar-gpu { background: #ab47bc; width: 0%; }
.perf-bar-cpu { background: #ef5350; width: 0%; }

/* FPS spark-line graph */
.perf-graph {
    display: block; width: 100%; height: 32px;
    margin-bottom: 5px; border-radius: 3px;
    background: rgba(255,255,255,0.03);
}

.perf-divider {
    height: 1px; background: rgba(255,255,255,0.07);
    margin: 5px 0;
}
.perf-bottleneck-row .perf-val-alert { font-size: 11px; }
.perf-reason {
    font-size: 9px; color: rgba(255,200,0,0.7);
    line-height: 1.4; min-height: 13px;
    overflow: hidden; text-overflow: ellipsis;
}

/* Color coding for severity */
.perf-val.perf-ok { color: #4caf50; }
.perf-val.perf-warn { color: #ff9800; }
.perf-val.perf-crit { color: #f44336; }

/* Header action buttons (record, detail, save) */
.perf-header-actions {
    display: flex; gap: 4px; align-items: center; margin-left: auto; margin-right: 6px;
}
.perf-action-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 18px; height: 18px; border-radius: 3px;
    font-size: 11px; cursor: pointer;
    color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.05);
    transition: color 0.15s, background 0.15s;
    user-select: none;
}
.perf-action-btn:hover {
    color: #fff; background: rgba(255,255,255,0.12);
}
/* Record button — red dot when recording */
#perf-log-record { font-size: 10px; }
#perf-log-record.perf-recording {
    color: #f44336; background: rgba(244,67,54,0.15);
    animation: perf-blink 1s infinite;
}
@keyframes perf-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Log status line */
.perf-log-status {
    font-size: 9px; color: rgba(255,255,255,0.35);
    margin-top: 4px; text-align: center;
    min-height: 12px; line-height: 1.3;
}

/* Stamina bar HUD */
.hud-stamina-bar {
    position: fixed;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.3s;
}
.hud-stamina-fill {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #ff9800, #ffc107);
    border-radius: 2px;
    transition: width 0.15s;
}
.hud-stamina-bar.stamina-low .hud-stamina-fill {
    background: linear-gradient(90deg, #f44336, #ff5722);
}

/* --- Level Manager Modal --- */
.lm-action-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--accent-border);
    background: var(--bg-panel-header);
    flex-wrap: wrap;
}
.lm-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    padding: 5px 12px;
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}
.lm-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-secondary);
}
.lm-btn-primary {
    background: #00796b;
    color: #fff;
    border-color: #00796b;
}
.lm-btn-primary:hover {
    background: #00897b;
    border-color: #00897b;
}
.lm-btn-danger {
    color: var(--text-error);
}
.lm-btn-danger:hover {
    background: var(--text-error);
    color: #fff;
    border-color: var(--text-error);
}
.lm-level-count {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
}
.lm-level-list {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
}
.lm-empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 16px;
    font-size: 12px;
}
.lm-level-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid var(--accent-border);
    border-radius: var(--border-radius);
    margin-bottom: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-secondary);
}
.lm-level-item:hover {
    border-color: rgba(100, 255, 218, 0.4);
    background: var(--bg-hover);
}
.lm-level-item.selected {
    border-color: #64ffda;
    background: var(--bg-active);
}
.lm-level-item.active-level {
    border-left: 3px solid #64ffda;
}
.lm-level-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(100, 255, 218, 0.1);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    color: #64ffda;
    flex-shrink: 0;
}
.lm-level-info {
    flex: 1;
    min-width: 0;
}
.lm-level-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lm-level-name-input {
    background: var(--bg-input);
    border: 1px solid #64ffda;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    padding: 2px 6px;
    font-size: 13px;
    font-family: inherit;
    font-weight: 600;
    outline: none;
    width: 100%;
}
.lm-level-meta {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    display: flex;
    gap: 10px;
}
.lm-level-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.lm-level-actions .lm-btn {
    padding: 3px 8px;
    font-size: 10px;
}
.lm-move-btns {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-shrink: 0;
}
.lm-move-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-border);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 10px;
    cursor: pointer;
    padding: 1px 6px;
    line-height: 1.2;
    transition: all var(--transition-fast);
}
.lm-move-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: #64ffda;
}
.lm-current-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-top: 1px solid var(--accent-border);
    background: rgba(100, 255, 218, 0.05);
    font-size: 11px;
}
.lm-current-label {
    color: var(--text-muted);
    font-weight: 600;
}
.lm-current-name {
    color: #64ffda;
    font-weight: 700;
}

/* --- Media Overlay (iframe / video / audio) --- */
.media-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}
.media-close-btn {
    position: absolute;
    top: 16px;
    right: 20px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: none;
    font-size: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 100000;
    transition: background 0.2s;
}
.media-close-btn:hover {
    background: rgba(255, 70, 70, 0.6);
}
.media-overlay-title {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    opacity: 0.7;
    letter-spacing: 0.5px;
}
.media-overlay-content {
    width: 85vw;
    height: 80vh;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: #111;
}
video.media-overlay-content {
    width: auto;
    max-width: 85vw;
    max-height: 80vh;
    height: auto;
    object-fit: contain;
}
iframe.media-overlay-content {
    background: #fff;
}

/* ============================================================
   Terrain Brush Toolbar
   ============================================================ */

.terrain-brush-toolbar {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    background: rgba(10, 10, 18, 0.92);
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 260px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0,0,0,0.5);
    user-select: none;
}

.tbt-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-primary, #00bcd4);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.tbt-row {
    display: flex;
    gap: 4px;
    justify-content: center;
}

.tbt-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: var(--text-secondary, #7a8698);
    cursor: pointer;
    transition: all 0.15s;
    font-size: 10px;
}

.tbt-btn:hover {
    background: rgba(255,255,255,0.12);
    color: var(--text-primary, #d4dae8);
}

.tbt-btn.active {
    background: var(--accent-primary, #00bcd4);
    color: #fff;
    border-color: var(--accent-primary, #00bcd4);
}

.tbt-icon {
    font-size: 16px;
    line-height: 1;
}

.tbt-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tbt-slider-wrap {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tbt-slider-label {
    font-size: 10px;
    color: var(--text-muted, #4a5468);
}

.tbt-slider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    outline: none;
}

.tbt-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-primary, #00bcd4);
    cursor: pointer;
}

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

.tbt-layer-row {
    display: flex;
    gap: 6px;
    justify-content: center;
}

.tbt-layer-chip {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: 2px solid rgba(255,255,255,0.15);
    cursor: pointer;
    transition: all 0.15s;
}

.tbt-layer-chip:hover {
    border-color: rgba(255,255,255,0.4);
}

.tbt-layer-chip.active {
    border-color: var(--accent-primary, #00bcd4);
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
}

.tbt-actions {
    justify-content: center;
    gap: 6px;
    margin-top: 4px;
}

.tbt-action-btn {
    padding: 5px 12px;
    font-size: 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 4px;
    color: var(--text-secondary, #7a8698);
    cursor: pointer;
    transition: all 0.15s;
}

.tbt-action-btn:hover {
    background: rgba(255,255,255,0.15);
    color: var(--text-primary, #d4dae8);
}

.tbt-exit {
    background: rgba(255, 50, 50, 0.15);
    border-color: rgba(255, 50, 50, 0.3);
    color: #ff6666;
}

.tbt-exit:hover {
    background: rgba(255, 50, 50, 0.3);
}

/* ============================================================
   NPC Dialog Box (Play Mode)
   ============================================================ */

.npc-dialog-box {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, 90vw);
    background: rgba(10, 15, 30, 0.92);
    border: 1px solid rgba(100, 160, 255, 0.4);
    border-radius: 12px;
    padding: 20px 24px 16px;
    z-index: 210;
    display: flex;
    flex-direction: column;
    gap: 8px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(100, 160, 255, 0.15);
    pointer-events: none;
}

.npc-dialog-name {
    font-size: 14px;
    font-weight: 700;
    color: #81d4fa;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.npc-dialog-text {
    font-size: 17px;
    line-height: 1.5;
    color: #e8e8e8;
    min-height: 40px;
}

.npc-dialog-hint {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    text-align: right;
    margin-top: 4px;
}

/* ============================================================
   Node Editor Overlay
   ============================================================ */

.node-editor-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.ne-container {
    width: 92vw;
    height: 88vh;
    background: var(--bg-panel, #0f1420);
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.6);
}

/* --- Header --- */
.ne-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-panel-header, #141a26);
    border-bottom: 1px solid var(--accent-border, #1c2333);
    flex-shrink: 0;
}
.ne-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary, #d4dae8);
    letter-spacing: 0.5px;
}
.ne-header-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}
.ne-btn {
    padding: 5px 12px;
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 4px;
    background: var(--bg-tertiary, #171d2a);
    color: var(--text-primary, #d4dae8);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.ne-btn:hover {
    background: var(--bg-hover, #1c2333);
    border-color: var(--accent-primary, #00bcd4);
}
.ne-btn-accent {
    background: var(--accent-primary, #00bcd4);
    border-color: var(--accent-primary, #00bcd4);
    color: #fff;
    font-weight: 600;
}
.ne-btn-accent:hover {
    background: var(--accent-secondary, #00e5ff);
    border-color: var(--accent-secondary, #00e5ff);
}
.ne-btn-template {
    background: linear-gradient(135deg, #6b21a8, #9333ea);
    border-color: #9333ea;
    color: #fff;
    font-weight: 600;
}
.ne-btn-template:hover {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    border-color: #a855f7;
}
.ne-btn-close {
    font-size: 18px;
    line-height: 1;
    padding: 2px 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary, #7a8698);
}
.ne-btn-close:hover {
    color: #ff4444;
    background: rgba(255, 68, 68, 0.1);
}

/* --- Level Tabs Bar --- */
.ne-level-tabs {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px 12px;
    background: var(--bg-secondary, #111620);
    border-bottom: 1px solid var(--accent-border, #1c2333);
    flex-shrink: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
}
.ne-level-tabs::-webkit-scrollbar {
    height: 4px;
}
.ne-level-tabs::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
}
.ne-tab {
    display: flex;
    align-items: center;
    padding: 5px 14px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary, #7a8698);
    background: transparent;
    border: 1px solid transparent;
    border-bottom: 2px solid transparent;
    border-radius: 4px 4px 0 0;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s ease;
    user-select: none;
}
.ne-tab:hover {
    color: var(--text-primary, #d4dae8);
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.06);
}
.ne-tab.ne-tab-active {
    color: #fff;
    background: var(--bg-panel, #0f1420);
    border-color: var(--accent-border, #1c2333);
    border-bottom-color: var(--accent-primary, #00bcd4);
}
.ne-tab-hint {
    font-size: 10px;
    color: var(--text-muted, #555e6e);
    font-style: italic;
    padding: 4px 8px;
    white-space: nowrap;
}

/* --- Body (3-column: palette | canvas | config) --- */
.ne-body {
    display: flex;
    flex: 1;
    min-height: 0;
    position: relative;
}

/* --- Palette (left sidebar) --- */
.ne-palette {
    width: 200px;
    background: var(--bg-secondary, #111620);
    border-right: 1px solid var(--accent-border, #1c2333);
    overflow-y: auto;
    flex-shrink: 0;
    padding: 4px 0;
    transition: margin-left 0.25s ease, opacity 0.25s ease;
}
@media (max-width: 900px) {
    .ne-palette {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 5;
        margin-left: -200px;
        opacity: 0;
        pointer-events: none;
    }
    .ne-palette.ne-palette-visible {
        margin-left: 0;
        opacity: 1;
        pointer-events: all;
    }
}
.ne-pal-header {
    padding: 8px 12px 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-secondary, #7a8698);
    letter-spacing: 1px;
    border-left: 3px solid transparent;
}
.ne-pal-item {
    padding: 6px 12px 6px 16px;
    font-size: 12px;
    color: var(--text-primary, #d4dae8);
    cursor: pointer;
    transition: background 0.12s;
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
}
.ne-pal-item:hover {
    background: var(--bg-hover, #1c2333);
}
.ne-pal-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

/* --- Canvas Area --- */
.ne-canvas-wrap {
    flex: 1;
    position: relative;
    background: var(--bg-primary, #0c1017);
    overflow: hidden;
}
.ne-canvas-wrap canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

/* --- Config Panel (right sidebar) --- */
.ne-config-panel {
    width: 240px;
    background: var(--bg-secondary, #111620);
    border-left: 1px solid var(--accent-border, #1c2333);
    flex-shrink: 0;
    flex-direction: column;
    overflow-y: auto;
}
.ne-cfg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg-panel-header, #141a26);
    border-bottom: 1px solid var(--accent-border, #1c2333);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary, #d4dae8);
}
.ne-cfg-close {
    background: none;
    border: none;
    color: var(--text-secondary, #7a8698);
    font-size: 16px;
    cursor: pointer;
    padding: 0 4px;
}
.ne-cfg-close:hover {
    color: #ff4444;
}
.ne-cfg-body {
    padding: 10px;
}
.ne-cfg-row {
    margin-bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.ne-cfg-label {
    font-size: 10px;
    color: var(--text-secondary, #7a8698);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}
.ne-cfg-input {
    background: var(--bg-input, #0a0f18);
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 4px;
    color: var(--text-primary, #d4dae8);
    padding: 4px 8px;
    font-size: 12px;
    font-family: 'Consolas', 'Courier New', monospace;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
    box-sizing: border-box;
}
.ne-cfg-input:focus {
    border-color: var(--accent-primary, #00bcd4);
}
.ne-cfg-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary, #00bcd4);
    cursor: pointer;
}
.ne-cfg-color {
    width: 100%;
    height: 28px;
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 4px;
    background: var(--bg-input, #0a0f18);
    cursor: pointer;
    padding: 2px;
}

/* Code editor for Custom nodes */
.ne-code-editor-wrap {
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 6px;
    overflow: hidden;
    background: #080c14;
}
.ne-code-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--accent-border, #1c2333);
}
.ne-code-lang {
    font-size: 9px;
    text-transform: uppercase;
    color: #00e5ff;
    background: rgba(0,229,255,0.1);
    padding: 1px 6px;
    border-radius: 3px;
    letter-spacing: 0.5px;
}
.ne-code-expand-btn {
    font-size: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: #9aa5b4;
    padding: 2px 8px;
    border-radius: 3px;
    cursor: pointer;
    margin-left: auto;
}
.ne-code-expand-btn:hover {
    background: rgba(0,229,255,0.15);
    color: #00e5ff;
}
.ne-code-line-count {
    font-size: 9px;
    color: #555;
}
.ne-code-editor-container {
    display: flex;
    max-height: 280px;
    overflow: hidden;
}
.ne-code-line-numbers {
    min-width: 32px;
    padding: 8px 4px 8px 0;
    text-align: right;
    font: 12px/1.5 'Consolas', 'Fira Code', 'Courier New', monospace;
    color: #3a4250;
    background: rgba(255,255,255,0.02);
    border-right: 1px solid rgba(255,255,255,0.05);
    user-select: none;
    overflow: hidden;
}
.ne-code-line-numbers div {
    padding-right: 6px;
    height: 18px;
}
.ne-code-textarea {
    flex: 1;
    min-height: 160px;
    max-height: 280px;
    padding: 8px;
    font: 12px/1.5 'Consolas', 'Fira Code', 'Courier New', monospace;
    color: #c5cdd9;
    background: transparent;
    border: none;
    outline: none;
    resize: vertical;
    tab-size: 4;
    white-space: pre;
    overflow: auto;
}
.ne-code-textarea::placeholder {
    color: #3a4250;
}
.ne-code-fullscreen {
    position: fixed;
    top: 5vh;
    left: 5vw;
    width: 90vw;
    height: 90vh;
    z-index: 10001;
    border: 2px solid #00e5ff;
    box-shadow: 0 0 60px rgba(0,229,255,0.3);
}
.ne-code-fullscreen .ne-code-editor-container {
    max-height: calc(90vh - 35px);
}
.ne-code-fullscreen .ne-code-textarea {
    max-height: calc(90vh - 35px);
    height: 80vh !important;
}

/* scrollbar for palette and config */
.ne-palette::-webkit-scrollbar,
.ne-config-panel::-webkit-scrollbar {
    width: 5px;
}
.ne-palette::-webkit-scrollbar-thumb,
.ne-config-panel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
.ne-palette::-webkit-scrollbar-track,
.ne-config-panel::-webkit-scrollbar-track {
    background: transparent;
}

/* --- Header Layout with Breadcrumb --- */
.ne-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}
.ne-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    min-width: 0;
}
.ne-crumb {
    padding: 2px 8px;
    border-radius: 3px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}
.ne-crumb-obj {
    background: rgba(255,255,255,0.06);
    color: var(--text-primary, #d4dae8);
}
.ne-crumb-sep {
    color: var(--text-secondary, #7a8698);
    font-size: 14px;
    font-weight: 700;
}
.ne-crumb-scope {
    font-size: 11px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.ne-scope-global {
    background: rgba(76, 175, 80, 0.15);
    color: #4caf50;
    border: 1px solid rgba(76, 175, 80, 0.3);
}
.ne-scope-level {
    background: rgba(66, 165, 245, 0.15);
    color: #42a5f5;
    border: 1px solid rgba(66, 165, 245, 0.3);
}
.ne-crumb-stats {
    color: var(--text-secondary, #7a8698);
    font-size: 11px;
    white-space: nowrap;
}

/* --- Tab Node Count Badge --- */
.ne-tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    margin-left: 6px;
    border-radius: 9px;
    font-size: 10px;
    font-weight: 700;
    background: rgba(255,255,255,0.1);
    color: var(--text-secondary, #7a8698);
}
.ne-tab-active .ne-tab-badge {
    background: rgba(0,188,212,0.2);
    color: var(--accent-primary, #00bcd4);
}

/* --- Overview Button --- */
.ne-btn-overview {
    background: linear-gradient(135deg, #1a5276, #2471a3);
    border-color: #2471a3;
    color: #fff;
    font-weight: 600;
}
.ne-btn-overview:hover {
    background: linear-gradient(135deg, #2471a3, #2e86c1);
    border-color: #2e86c1;
}
.ne-btn-active {
    box-shadow: 0 0 0 2px rgba(0,188,212,0.4);
}

/* --- Overview Panel --- */
.ne-overview-panel {
    width: 280px;
    min-width: 280px;
    background: var(--bg-secondary, #111620);
    border-right: 1px solid var(--accent-border, #1c2333);
    flex-direction: column;
    overflow: hidden;
}
.ne-ov-header {
    padding: 10px 12px 6px;
    border-bottom: 1px solid var(--accent-border, #1c2333);
}
.ne-ov-title {
    font-weight: 700;
    font-size: 13px;
    color: var(--text-primary, #d4dae8);
    display: block;
    margin-bottom: 4px;
}
.ne-ov-stats {
    font-size: 11px;
    color: var(--text-secondary, #7a8698);
}
.ne-ov-search-wrap {
    padding: 8px 10px;
    border-bottom: 1px solid var(--accent-border, #1c2333);
}
.ne-ov-search {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--accent-border, #1c2333);
    border-radius: 4px;
    background: var(--bg-tertiary, #171d2a);
    color: var(--text-primary, #d4dae8);
    font-size: 12px;
    outline: none;
    box-sizing: border-box;
}
.ne-ov-search:focus {
    border-color: var(--accent-primary, #00bcd4);
}
.ne-ov-tree {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
    scrollbar-width: thin;
}
.ne-ov-tree::-webkit-scrollbar { width: 5px; }
.ne-ov-tree::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
.ne-ov-scope {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px 4px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}
.ne-ov-scope-global { color: #4caf50; }
.ne-ov-scope-level  { color: #42a5f5; }
.ne-ov-scope-icon { font-size: 13px; }
.ne-ov-scope-label { flex: 1; }
.ne-ov-scope-count {
    font-weight: 400;
    color: var(--text-secondary, #7a8698);
    font-size: 10px;
}
.ne-ov-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px 6px 28px;
    cursor: pointer;
    transition: background 0.12s;
    border-left: 3px solid transparent;
}
.ne-ov-entry:hover {
    background: rgba(255,255,255,0.04);
}
.ne-ov-entry-active {
    background: rgba(0,188,212,0.08);
    border-left-color: var(--accent-primary, #00bcd4);
}
.ne-ov-entry-name {
    font-size: 12px;
    color: var(--text-primary, #d4dae8);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}
.ne-ov-entry-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}
.ne-ov-entry-count {
    font-size: 10px;
    color: var(--text-secondary, #7a8698);
    padding: 1px 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
}
.ne-ov-badge {
    font-size: 12px;
    line-height: 1;
}
.ne-ov-empty {
    padding: 20px 12px;
    text-align: center;
    color: var(--text-secondary, #7a8698);
    font-size: 12px;
}

/* --- Status Bar --- */
.ne-statusbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 14px;
    background: var(--bg-panel-header, #141a26);
    border-top: 1px solid var(--accent-border, #1c2333);
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-secondary, #7a8698);
    min-height: 26px;
}
.ne-status-left,
.ne-status-right {
    display: flex;
    align-items: center;
    gap: 8px;
}
.ne-status-item {
    display: flex;
    align-items: center;
    gap: 3px;
    white-space: nowrap;
}
.ne-status-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
}
.ne-status-sep {
    color: rgba(255,255,255,0.1);
    font-size: 10px;
}
.ne-status-badge {
    padding: 1px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.8px;
}
.ne-badge-global {
    background: rgba(76,175,80,0.15);
    color: #4caf50;
}
.ne-badge-level {
    background: rgba(66,165,245,0.15);
    color: #42a5f5;
}

/* ============================================================
   Shader Editor
   ============================================================ */

#shader-editor-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    max-width: 96vw;
    height: 640px;
    max-height: 90vh;
    background: #0a0c14;
    border: 1px solid rgba(100, 160, 255, 0.25);
    border-radius: 12px;
    z-index: 9000;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(80, 120, 255, 0.1);
    font-family: 'Segoe UI', Tahoma, sans-serif;
    color: #c8ccd4;
    overflow: hidden;
}

.se-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: rgba(20, 24, 40, 0.95);
    border-bottom: 1px solid rgba(100, 160, 255, 0.15);
    flex-shrink: 0;
}

.se-title {
    font-weight: 700;
    font-size: 14px;
    color: #e0e4ec;
}

.se-header-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.se-preset-select {
    background: #12152a;
    border: 1px solid rgba(100, 160, 255, 0.2);
    color: #c8ccd4;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.se-btn {
    background: rgba(60, 100, 220, 0.25);
    border: 1px solid rgba(100, 160, 255, 0.3);
    color: #a0c0ff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}
.se-btn:hover {
    background: rgba(60, 100, 220, 0.45);
    color: #fff;
}
.se-btn-compile {
    background: rgba(40, 160, 80, 0.25);
    border-color: rgba(60, 200, 100, 0.3);
    color: #80ff90;
}
.se-btn-compile:hover {
    background: rgba(40, 160, 80, 0.45);
}

.se-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Code area */
.se-code-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    border-right: 1px solid rgba(100, 160, 255, 0.1);
}

.se-tabs {
    display: flex;
    gap: 0;
    background: rgba(15, 18, 30, 0.8);
    border-bottom: 1px solid rgba(100, 160, 255, 0.1);
    flex-shrink: 0;
}

.se-tab {
    padding: 6px 18px;
    background: transparent;
    border: none;
    color: #607090;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}
.se-tab:hover { color: #a0c0ff; }
.se-tab.active {
    color: #80b0ff;
    border-bottom-color: #4080ff;
    background: rgba(40, 80, 200, 0.08);
}

.se-editor-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.se-line-numbers {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    background: rgba(10, 12, 20, 0.9);
    border-right: 1px solid rgba(100, 160, 255, 0.08);
    overflow: hidden;
    padding-top: 8px;
    z-index: 2;
}
.se-ln {
    height: 18px;
    line-height: 18px;
    font-size: 11px;
    font-family: 'Consolas', 'Fira Code', monospace;
    color: #3a4060;
    text-align: right;
    padding-right: 6px;
}

.se-code {
    position: absolute;
    inset: 0;
    padding: 8px 8px 8px 48px;
    margin: 0;
    border: none;
    outline: none;
    background: transparent;
    color: transparent;
    caret-color: #80b0ff;
    font-family: 'Consolas', 'Fira Code', monospace;
    font-size: 13px;
    line-height: 18px;
    resize: none;
    white-space: pre;
    overflow: auto;
    tab-size: 4;
    z-index: 3;
    -webkit-text-fill-color: transparent;
}

.se-highlight-overlay {
    position: absolute;
    inset: 0;
    padding: 8px 8px 8px 48px;
    font-family: 'Consolas', 'Fira Code', monospace;
    font-size: 13px;
    line-height: 18px;
    white-space: pre;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
    color: #c8ccd4;
}

/* GLSL Syntax Colors */
.se-keyword { color: #c586c0; font-weight: 600; }
.se-builtin { color: #dcdcaa; }
.se-number  { color: #b5cea8; }
.se-comment { color: #505a70; font-style: italic; }
.se-preproc { color: #569cd6; }

/* Error display */
.se-errors {
    max-height: 80px;
    overflow-y: auto;
    background: rgba(15, 10, 10, 0.6);
    border-top: 1px solid rgba(255, 60, 60, 0.15);
    padding: 4px 8px;
    flex-shrink: 0;
    font-size: 11px;
    font-family: 'Consolas', monospace;
}
.se-error-ok {
    color: #4caf50;
    padding: 2px 0;
}
.se-error-line {
    color: #ff5252;
    padding: 2px 0;
}

/* Sidebar */
.se-sidebar {
    width: 260px;
    min-width: 260px;
    overflow-y: auto;
    padding: 10px;
    background: rgba(10, 14, 24, 0.6);
}

.se-section-title {
    font-size: 11px;
    font-weight: 700;
    color: #607090;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.se-add-uniform-row {
    margin-bottom: 8px;
}

.se-btn-sm {
    background: rgba(60, 100, 220, 0.15);
    border: 1px dashed rgba(100, 160, 255, 0.25);
    color: #80a0d0;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    width: 100%;
}
.se-btn-sm:hover {
    background: rgba(60, 100, 220, 0.3);
    color: #fff;
}

.se-uniform-card {
    background: rgba(20, 26, 44, 0.6);
    border: 1px solid rgba(100, 160, 255, 0.1);
    border-radius: 6px;
    padding: 6px 8px;
    margin-bottom: 6px;
}

.se-uniform-header {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 4px;
}

.se-uniform-name {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(100, 160, 255, 0.12);
    color: #dcdcaa;
    font-family: 'Consolas', monospace;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    flex: 1;
    min-width: 0;
}

.se-uniform-type {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(100, 160, 255, 0.12);
    color: #a0c0ff;
    font-size: 10px;
    padding: 2px 4px;
    border-radius: 3px;
    width: 65px;
}

.se-btn-remove {
    background: transparent;
    border: none;
    color: #ff4444;
    cursor: pointer;
    font-size: 12px;
    padding: 0 4px;
    opacity: 0.5;
}
.se-btn-remove:hover { opacity: 1; }

.se-uniform-value {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.se-slider {
    flex: 1;
    min-width: 80px;
    height: 4px;
    accent-color: #4080ff;
}

.se-num-input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(100, 160, 255, 0.12);
    color: #b5cea8;
    font-family: 'Consolas', monospace;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    width: 55px;
}

.se-color-input {
    width: 100%;
    height: 24px;
    border: 1px solid rgba(100, 160, 255, 0.12);
    border-radius: 3px;
    cursor: pointer;
    background: transparent;
}

.se-vec-comp {
    display: flex;
    align-items: center;
    gap: 2px;
}
.se-vec-label {
    font-size: 10px;
    font-weight: 700;
    color: #607090;
    width: 10px;
}

.se-mat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 0;
    font-size: 11px;
}

.se-select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(100, 160, 255, 0.12);
    color: #c8ccd4;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
}

.se-btn-close {
    background: rgba(200, 50, 50, 0.2);
    border-color: rgba(255, 60, 60, 0.3);
    color: #ff6060;
    font-size: 14px;
    padding: 2px 8px;
}
.se-btn-close:hover {
    background: rgba(200, 50, 50, 0.45);
    color: #fff;
}

/* ============================================================
   Procedural Generation Modal
   ============================================================ */
.pg-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--accent-border);
    padding-bottom: 8px;
}
.pg-tab {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--accent-border);
    border-radius: 6px 6px 0 0;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    text-align: center;
    transition: background 0.15s, color 0.15s;
}
.pg-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.pg-tab.active {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}
.pg-tab-content {
    display: none;
}
.pg-tab-content.active {
    display: block;
}
.pg-actions {
    display: flex;
    gap: 8px;
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px solid var(--accent-border);
}
.pg-generate-btn {
    flex: 1;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    background: #76ff03;
    color: #0a0a0f;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    transition: background 0.15s;
}
.pg-generate-btn:hover {
    background: #64dd17;
}
.pg-clear-btn {
    padding: 8px 16px;
    border: 1px solid rgba(255, 60, 60, 0.3);
    border-radius: 6px;
    background: rgba(200, 50, 50, 0.15);
    color: #ff6060;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}
.pg-clear-btn:hover {
    background: rgba(200, 50, 50, 0.35);
    color: #fff;
}
.pg-seed-rand {
    margin-left: 6px;
    padding: 2px 8px;
    border: 1px solid var(--accent-border);
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-accent);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
}
.pg-seed-rand:hover {
    background: var(--bg-hover);
}

/* ============================================================
   Benchmark / Stress Test
   ============================================================ */
.bench-checks {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 16px;
}
.bench-check, .bench-radio {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-primary);
    cursor: pointer;
}
.bench-check input, .bench-radio input {
    accent-color: var(--accent-primary);
    cursor: pointer;
}
.bench-radio-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.bench-start-btn {
    width: 100%;
    margin-top: 16px;
    padding: 12px;
    background: linear-gradient(135deg, var(--accent-primary), #00e5ff);
    color: #0a0e14;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s;
}
.bench-start-btn:hover {
    filter: brightness(1.15);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}
.bench-phase-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-accent);
    margin-bottom: 8px;
    letter-spacing: 1px;
}
.bench-progress-wrap {
    width: 100%;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}
.bench-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-primary), #00e5ff);
    border-radius: 4px;
    transition: width 0.3s ease;
}
.bench-live-stats {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: monospace;
    margin-bottom: 12px;
}
.bench-cancel-btn {
    width: 100%;
    padding: 8px;
    background: transparent;
    border: 1px solid var(--text-error);
    color: var(--text-error);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
}
.bench-cancel-btn:hover {
    background: rgba(255, 82, 82, 0.1);
}
.bench-score-wrap {
    text-align: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 12px;
}
.bench-score-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--text-accent);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.bench-score-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 2px;
}
.bench-score-stars {
    font-size: 28px;
    margin: 8px 0 4px;
    letter-spacing: 4px;
}
.bench-score-rating {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}
.bench-log {
    width: 100%;
    max-height: 320px;
    overflow-y: auto;
    background: var(--bg-input);
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 11px;
    font-family: 'Consolas', 'Courier New', monospace;
    color: var(--text-primary);
    line-height: 1.5;
    white-space: pre;
    margin: 0;
    tab-size: 2;
}
.bench-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}
.bench-action-btn {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--accent-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.15s;
}
.bench-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
}
.bench-action-btn.accent {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #0a0e14;
}
.bench-action-btn.accent:hover {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

/* === WebGL2 ULTRA neon glow branding === */
.neon-ultra {
    color: #ff1744;
    font-weight: 900;
    font-size: inherit;
    letter-spacing: 1.5px;
    text-shadow:
        0 0 4px #ff1744,
        0 0 8px #ff1744,
        0 0 16px #ff1744,
        0 0 32px #ff0040,
        0 0 48px #ff0040;
    animation: neonPulse 1.8s ease-in-out infinite alternate;
}
@keyframes neonPulse {
    0% {
        text-shadow:
            0 0 4px #ff1744,
            0 0 8px #ff1744,
            0 0 16px #ff1744,
            0 0 32px #ff0040;
        opacity: 0.9;
    }
    100% {
        text-shadow:
            0 0 6px #ff1744,
            0 0 12px #ff1744,
            0 0 24px #ff1744,
            0 0 48px #ff0040,
            0 0 72px #ff0040;
        opacity: 1;
    }
}

/* ============================================================
   W-Engine Dashboard Toggle Switch (small variant)
   ============================================================ */
.switch-small {
    position: relative;
    display: inline-block;
    width: 28px;
    height: 16px;
    flex-shrink: 0;
}
.switch-small input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider-small {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: #444;
    border-radius: 8px;
    transition: background 0.2s;
}
.slider-small::before {
    content: "";
    position: absolute;
    height: 12px;
    width: 12px;
    left: 2px;
    bottom: 2px;
    background: #888;
    border-radius: 50%;
    transition: transform 0.2s, background 0.2s;
}
.switch-small input:checked + .slider-small {
    background: #7c3aed;
}
.switch-small input:checked + .slider-small::before {
    transform: translateX(12px);
    background: #e0d4ff;
}