/* ============================================================
   3D AE VIEWER - STYLES
   Clean, modern, accessible design
   ============================================================ */

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #1a1a1a;
    --color-bg-hover: #252525;
    --color-surface: #2a2a2a;
    --color-surface-hover: #353535;
    --color-border: #404040;
    --color-text: #e0e0e0;
    --color-text-dim: #a0a0a0;
    --color-accent: #4a9eff;
    --color-accent-hover: #6bb0ff;

    /* Severity colors */
    --color-low: #4caf50;
    --color-medium: #ff9800;
    --color-high: #f44336;

    /* Layout */
    --sidebar-width: 360px;
    --header-height: 60px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    overflow: hidden;
    height: 100vh;
}

/* Accessibility - visually hidden but screen-reader accessible */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Main layout */
.container {
    display: flex;
    height: 100vh;
    width: 100%;
    padding-top: 0; /* Minimal padding - let top bar overlap slightly */
    margin-top: 50px; /* Use margin instead to account for fixed top bar */
}

/* Left Sidebar - Upload Controls */
.left-sidebar {
    width: 360px;
    min-width: 320px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.left-sidebar.collapsed {
    width: 0;
    min-width: 0;
    border-right: none;
    overflow: hidden;
}

.left-sidebar.pinned {
    /* Pinned state - stays open */
}

/* Right Sidebar - Events and Clusters list */
.right-sidebar {
    width: 360px;
    min-width: 320px;
    height: 100%; /* Explicit height to fill container */
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: hidden; /* Prevent scrolling on sidebar itself */
    overflow-x: hidden;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.right-sidebar.collapsed {
    width: 0;
    min-width: 0;
    border-left: none;
    overflow: hidden;
}

.right-sidebar.pinned {
    /* Pinned state - stays open */
}

/* Asset Viewers (shown during autoload) */
.asset-viewers {
    width: 360px;
    min-width: 320px;
    height: 100%;
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.asset-viewer-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
}

.asset-viewer-toggle {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border: none;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.asset-viewer-toggle:hover {
    background: var(--color-surface-hover);
}

.asset-viewer-toggle .card-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.asset-viewer-toggle .toggle-arrow {
    transition: transform var(--transition-fast);
    font-size: 0.7rem;
}

.asset-viewer-toggle[aria-expanded="false"] .toggle-arrow {
    transform: rotate(-90deg);
}

.asset-viewer-content {
    padding: var(--spacing-md);
    max-height: 500px;
    overflow: hidden;
    opacity: 1;
    transition: max-height 0.3s ease, opacity 0.2s ease, padding 0.3s ease;
}

.asset-viewer-content.collapsed {
    max-height: 0;
    opacity: 0;
    padding: 0 var(--spacing-md);
}

.asset-viewer-thumbnail {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.asset-viewer-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.asset-viewer-thumbnail img {
    display: block;
    width: 100%;
    height: auto;
}

.asset-viewer-pdf {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: var(--color-surface);
}

.asset-viewer-pdf:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.pdf-placeholder {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text);
}

.pdf-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.pdf-label {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.pdf-hint {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* Sidebar Toggle Button - Fully visible on canvas side */
.sidebar-toggle-btn {
    position: absolute;
    width: 48px;
    height: 48px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001; /* Above canvas */
    transition: all 0.3s ease;
    color: var(--color-text);
    font-size: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.sidebar-toggle-btn:hover {
    background: var(--color-surface-hover);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    transform: scale(1.05);
}

/* Position at top of sidebar when open */
.sidebar-toggle-top {
    top: var(--spacing-md);
}

/* Left sidebar toggle button - fully visible on canvas side (right of sidebar) */
.left-sidebar .sidebar-toggle-btn {
    right: calc(-0px - 8px); /* Full button width + gap, outside sidebar */
}

.left-sidebar.collapsed .sidebar-toggle-btn {
    position: fixed;
    left: var(--spacing-md);
    top: 70px; /* Below top bar */
}

.left-sidebar.collapsed .sidebar-toggle-btn .toggle-icon {
    transform: rotate(180deg);
}

/* Right sidebar toggle button - at the far right inside the sidebar */
.right-sidebar .sidebar-toggle-btn {
    right: var(--spacing-md); /* Inside sidebar, at right edge */
    left: auto;
}

.right-sidebar.collapsed .sidebar-toggle-btn {
    position: fixed;
    right: var(--spacing-md);
    top: 70px; /* Below top bar */
}

.right-sidebar.collapsed .sidebar-toggle-btn .toggle-icon {
    transform: rotate(180deg);
}


/* Legacy sidebar class (keeping for compatibility) */
.sidebar {
    width: var(--sidebar-width);
    min-width: 320px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: var(--spacing-lg);
    padding-right: 60px; /* Make room for pin button */
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    flex-shrink: 0;
    position: relative;
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.event-count {
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

/* Filters */
.filters {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    flex-shrink: 0;
}

/* Filter toggle button (hidden on desktop, shown on mobile) */
.filter-toggle {
    display: none;
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 0.875rem;
    cursor: pointer;
    text-align: left;
    margin-bottom: var(--spacing-sm);
    transition: background var(--transition-fast);
}

.filter-toggle:hover {
    background: var(--color-surface-hover);
}

.filter-toggle::after {
    content: '▼';
    float: right;
    transition: transform var(--transition-fast);
}

.filter-toggle.collapsed::after {
    transform: rotate(-90deg);
}

.filter-content {
    /* Will be toggled on mobile */
}

.filter-group {
    margin-bottom: var(--spacing-md);
}

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

.filter-group > label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dim);
}

/* Section filter toggle button */
.section-filter-toggle {
    display: block;
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    margin-bottom: var(--spacing-sm);
    transition: background var(--transition-fast);
}

.section-filter-toggle:hover {
    background: var(--color-surface-hover);
}

.section-filter-toggle .toggle-icon {
    display: inline-block;
    transition: transform var(--transition-fast);
    margin-right: 4px;
    font-size: 0.75rem;
}

.section-filter-toggle[aria-expanded="false"] .toggle-icon {
    transform: rotate(-90deg);
}

.section-filter-content {
    max-height: 500px;
    overflow-y: auto;
    overflow-x: hidden;
    transition: max-height var(--transition-normal), opacity var(--transition-fast);
    opacity: 1;
}

.section-filter-content.collapsed {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

.checkbox-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    user-select: none;
}

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

.checkbox-group input[type="checkbox"]:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Small filter buttons (All/None) */
.filter-btn-small {
    padding: 4px 12px;
    font-size: 0.75rem;
    background: var(--color-surface-hover);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn-small:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

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

/* Severity dots */
.severity-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.severity-dot.severity-low {
    background: var(--color-low);
}

.severity-dot.severity-medium {
    background: var(--color-medium);
}

.severity-dot.severity-high {
    background: var(--color-high);
}

/* Search input */
#searchInput {
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast);
}

#searchInput:focus {
    outline: none;
    border-color: var(--color-accent);
}

#searchInput::placeholder {
    color: var(--color-text-dim);
}

/* Event list */
.event-list {
    flex: 1;
    min-height: 0; /* Critical for flex scrolling */
    overflow-y: auto;
    overflow-x: hidden;
    list-style: none;
    padding: var(--spacing-sm);
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    overscroll-behavior: contain; /* Prevent scroll chaining on mobile */
}

/* List section header */
.list-header {
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    background: var(--color-surface);
    border-left: 3px solid var(--color-accent);
    color: var(--color-text);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: default;
}

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

.event-item {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.event-item:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    transform: translateX(4px);
}

.event-item:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.event-item.selected {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(74, 158, 255, 0.2);
}

.event-item.highlighted {
    border-color: var(--color-accent);
    box-shadow: 0 0 12px rgba(74, 158, 255, 0.4);
}

.event-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.event-id {
    font-weight: 600;
    font-size: 0.95rem;
}


.event-details {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.event-details .label {
    font-weight: 500;
}

.event-details .value {
    text-align: right;
}

/* Upload section - Collapsible */
.upload-section {
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
    flex: 0 1 auto;
    flex-shrink: 1;
}

/* Upload section in left sidebar */
.left-sidebar .upload-section {
    padding: var(--spacing-md);
    border-top: none;
}

/* Upload toggle button */
.upload-toggle {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border: none;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Hide upload toggle in left sidebar */
.left-sidebar .upload-toggle {
    display: none;
}

.upload-toggle:hover {
    background: var(--color-surface-hover);
}

.upload-toggle::after {
    content: '▼';
    transition: transform var(--transition-fast);
    font-size: 0.75rem;
}

.upload-toggle.collapsed::after {
    transform: rotate(-90deg);
}

/* Upload content - collapsible */
.upload-content {
    padding: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    transition: max-height var(--transition-normal), opacity var(--transition-normal);
}

/* Upload content in left sidebar - always visible and no max-height */
.left-sidebar .upload-content {
    max-height: none;
    padding: 0;
    overflow-y: visible;
}

.upload-content.collapsed {
    display: none;
}

/* Upload content in left sidebar never collapses */
.left-sidebar .upload-content.collapsed {
    display: block;
}

.upload-label {
    display: block;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 2px dashed var(--color-border);
    border-radius: 6px;
    text-align: center;
    cursor: not-allowed;
    color: var(--color-text-dim);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

#modelUpload {
    /*display: none;*/
}

.upload-note {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-align: center;
    font-style: italic;
}

/* Canvas container */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#canvas3d {
    width: 100%;
    height: 100%;
    display: block;
    /* Ensure smooth resize without flickering */
    transition: none; /* Don't transition canvas itself, let WebGL handle it */
    will-change: auto; /* Let browser optimize */
}

/* Tooltip */
.tooltip {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 0.875rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast), transform 0.2s ease;
    z-index: 1000;
    max-width: 350px;
    min-width: 200px;
    border: 1px solid var(--color-accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.tooltip.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.tooltip-header {
    font-weight: 600;
    margin-bottom: 4px;
}

.tooltip-detail {
    font-size: 0.75rem;
    color: #ccc;
    line-height: 1.4;
}

/* Scene controls */
.scene-controls {
    position: absolute;
    top: var(--spacing-md);
    right: calc(var(--spacing-md) + 40px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 1001;
    max-width: 400px;
}

/* Control group inline - buttons in a row */
.control-group-inline {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.scene-controls button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(42, 42, 42, 0.9);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
    white-space: nowrap;
    flex: 0 0 auto;
}

.scene-controls button:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.scene-controls button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.scene-controls button:active {
    transform: translateY(0);
}

/* Prominent control group for frequently used controls */
.control-group-prominent {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: 6px;
    padding: 4px;
    margin-bottom: 2px;
}

/* Prominent buttons (Roof, Shell) - larger and more visible */
.btn-prominent {
    padding: 10px 16px !important;
    font-size: 0.875rem !important;
    font-weight: 600 !important;
    background: rgba(76, 175, 80, 0.15) !important;
    border: 2px solid rgba(76, 175, 80, 0.4) !important;
    border-radius: 6px !important;
    min-width: 100px;
}

.btn-prominent:hover {
    background: rgba(76, 175, 80, 0.25) !important;
    border-color: rgba(76, 175, 80, 0.6) !important;
    box-shadow: 0 0 8px rgba(76, 175, 80, 0.3) !important;
}

/* Controls collapse toggle button */
.controls-collapse-toggle {
    width: 100%;
    padding: 8px 12px !important;
    margin-top: 4px;
    background: rgba(42, 42, 42, 0.9) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: 4px !important;
    color: var(--color-text) !important;
    font-size: 0.75rem !important;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.controls-collapse-toggle:hover {
    background: var(--color-surface-hover) !important;
    border-color: var(--color-accent) !important;
}

.controls-collapse-toggle .toggle-icon {
    transition: transform var(--transition-fast);
    font-size: 0.7rem;
}

.controls-collapse-toggle[aria-expanded="true"] .toggle-icon {
    transform: rotate(90deg);
}

/* Collapsible controls container */
.collapsible-controls {
    max-height: 500px;
    overflow: hidden;
    opacity: 1;
    transition: max-height 0.3s ease, opacity 0.2s ease;
    margin-top: 4px;
}

.collapsible-controls.collapsed {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

/* ============================================================
   VIEW CUBE - Interactive 3D Navigation Control
   Separated into 3 containers: Compass, Cube, Home
   ============================================================ */

/* Main wrapper - vertical flex layout */
.view-cube-wrapper {
    position: absolute;
    bottom: 60px;
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px; /* Clear gap between sections */
    z-index: 999;
    pointer-events: none;
}

/* ============ COMPASS CONTAINER (TOP) ============ */
.view-cube-compass-container {
    width: 120px;
    height: 120px;
    position: relative;
    pointer-events: none;
}

.view-cube-compass {
    position: relative;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* ============ CUBE CONTAINER (MIDDLE) ============ */
.view-cube-container {
    width: 140px;
    height: 140px;
    position: relative;
    perspective: 800px;
    pointer-events: none;
}

.view-cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: all;
    transform: rotateX(-20deg) rotateY(-20deg); /* Default isometric angle */
}

/* Cube faces - now using CSS Grid for subdivision */
.cube-face {
    position: absolute;
    width: 90px;
    height: 90px;
    left: 25px;
    top: 25px;
    background: rgba(42, 42, 42, 0.95);
    border: 2px solid var(--color-border);
    backdrop-filter: blur(10px);
    user-select: none;
    z-index: 1;

    /* CSS Grid for 3x3 subdivision */
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    gap: 1px;
}

/* Face regions - individual clickable areas */
.face-region {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: transparent;
    position: relative;
}

.face-region:hover {
    background: rgba(74, 158, 255, 0.3);
    z-index: 10;
}

/* Center region - shows face label */
.face-region.region-c {
    font-size: 9px;
    font-weight: 700;
    color: var(--color-text);
}

.face-region.region-c:hover {
    background: rgba(74, 158, 255, 0.2);
    color: var(--color-accent);
}

.face-region.region-c span {
    pointer-events: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Corner regions - subtle indication */
.face-region.region-tl,
.face-region.region-tr,
.face-region.region-bl,
.face-region.region-br {
    position: relative;
}

.face-region.region-tl::after,
.face-region.region-tr::after,
.face-region.region-bl::after,
.face-region.region-br::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(74, 158, 255, 0.4);
    border-radius: 50%;
}

.face-region.region-tl::after { top: 2px; left: 2px; }
.face-region.region-tr::after { top: 2px; right: 2px; }
.face-region.region-bl::after { bottom: 2px; left: 2px; }
.face-region.region-br::after { bottom: 2px; right: 2px; }

.face-region.region-tl:hover::after,
.face-region.region-tr:hover::after,
.face-region.region-bl:hover::after,
.face-region.region-br:hover::after {
    background: var(--color-accent);
    width: 8px;
    height: 8px;
}

/* Edge regions - subtle line indication */
.face-region.region-t::after,
.face-region.region-b::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 2px;
    background: rgba(74, 158, 255, 0.3);
}

.face-region.region-l::after,
.face-region.region-r::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 60%;
    background: rgba(74, 158, 255, 0.3);
}

.face-region.region-t::after { top: 50%; }
.face-region.region-b::after { bottom: 50%; }
.face-region.region-l::after { left: 50%; }
.face-region.region-r::after { right: 50%; }

.face-region.region-t:hover::after,
.face-region.region-b:hover::after,
.face-region.region-l:hover::after,
.face-region.region-r:hover::after {
    background: var(--color-accent);
}


/* Face positioning with 3D transforms */
.cube-top {
    transform: rotateX(90deg) translateZ(45px);
}

.cube-bottom {
    transform: rotateX(-90deg) translateZ(45px);
}

.cube-front {
    transform: translateZ(45px);
}

.cube-back {
    transform: rotateY(180deg) translateZ(45px);
}

.cube-left {
    transform: rotateY(-90deg) translateZ(45px);
}

.cube-right {
    transform: rotateY(90deg) translateZ(45px);
}

/* Compass arrows - positioned outside the cube */
.view-cube-compass {
    position: relative;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.compass-arrow {
    position: absolute;
    width: 32px;
    height: 32px;
    background: rgba(42, 42, 42, 0.95);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: all;
    user-select: none;
    backdrop-filter: blur(10px);
}

.compass-arrow:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.3);
    box-shadow: 0 0 15px var(--color-accent);
    z-index: 10;
}

.compass-arrow:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.3);
    box-shadow: 0 0 15px var(--color-accent);
    z-index: 10;
}

/* Compass positioning - cardinal directions */
.compass-n {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.compass-s {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.compass-e {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.compass-w {
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

/* ============ HOME BUTTON CONTAINER (BOTTOM) ============ */
.view-cube-home-container {
    width: 50px;
    height: 50px;
    position: relative;
    pointer-events: none;
}

.view-cube-home {
    width: 44px;
    height: 44px;
    background: rgba(42, 42, 42, 0.95);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: all;
}

.view-cube-home:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.15);
    box-shadow: 0 0 15px var(--color-accent);
}

/* Active state - rotate cube based on current view */
.view-cube.view-front {
    transform: rotateX(-20deg) rotateY(0deg);
}

.view-cube.view-back {
    transform: rotateX(-20deg) rotateY(180deg);
}

.view-cube.view-left {
    transform: rotateX(-20deg) rotateY(90deg);
}

.view-cube.view-right {
    transform: rotateX(-20deg) rotateY(-90deg);
}

.view-cube.view-top {
    transform: rotateX(-80deg) rotateY(0deg);
}

.view-cube.view-bottom {
    transform: rotateX(80deg) rotateY(0deg);
}

/* 8 Corner view rotations (isometric) */
.view-cube.view-corner-tfl {
    transform: rotateX(-30deg) rotateY(-45deg);
}

.view-cube.view-corner-tfr {
    transform: rotateX(-30deg) rotateY(45deg);
}

.view-cube.view-corner-tbl {
    transform: rotateX(-30deg) rotateY(135deg);
}

.view-cube.view-corner-tbr {
    transform: rotateX(-30deg) rotateY(-135deg);
}

.view-cube.view-corner-bfl {
    transform: rotateX(30deg) rotateY(-45deg);
}

.view-cube.view-corner-bfr {
    transform: rotateX(30deg) rotateY(45deg);
}

.view-cube.view-corner-bbl {
    transform: rotateX(30deg) rotateY(135deg);
}

.view-cube.view-corner-bbr {
    transform: rotateX(30deg) rotateY(-135deg);
}

/* 12 Edge view rotations (combined directional) */
.view-cube.view-edge-tf {
    transform: rotateX(-45deg) rotateY(0deg);
}

.view-cube.view-edge-tb {
    transform: rotateX(-45deg) rotateY(180deg);
}

.view-cube.view-edge-tl {
    transform: rotateX(-45deg) rotateY(90deg);
}

.view-cube.view-edge-tr {
    transform: rotateX(-45deg) rotateY(-90deg);
}

.view-cube.view-edge-bf {
    transform: rotateX(45deg) rotateY(0deg);
}

.view-cube.view-edge-bb {
    transform: rotateX(45deg) rotateY(180deg);
}

.view-cube.view-edge-btml {
    transform: rotateX(45deg) rotateY(90deg);
}

.view-cube.view-edge-btmr {
    transform: rotateX(45deg) rotateY(-90deg);
}

.view-cube.view-edge-fl {
    transform: rotateX(-20deg) rotateY(45deg);
}

.view-cube.view-edge-fr {
    transform: rotateX(-20deg) rotateY(-45deg);
}

.view-cube.view-edge-bl {
    transform: rotateX(-20deg) rotateY(135deg);
}

.view-cube.view-edge-br {
    transform: rotateX(-20deg) rotateY(-135deg);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .view-cube-wrapper {
        bottom: 40px;
        right: var(--spacing-md);
        gap: 15px; /* Smaller gap on mobile */
    }

    .view-cube-compass-container {
        width: 90px;
        height: 90px;
    }

    .compass-arrow {
        width: 26px;
        height: 26px;
        font-size: 10px;
    }

    .view-cube-container {
        width: 100px;
        height: 100px;
    }

    .cube-face {
        width: 64px;
        height: 64px;
        left: 18px;
        top: 18px;
        font-size: 9px;
    }

    .cube-top { transform: rotateX(90deg) translateZ(32px); }
    .cube-bottom { transform: rotateX(-90deg) translateZ(32px); }
    .cube-front { transform: translateZ(32px); }
    .cube-back { transform: rotateY(180deg) translateZ(32px); }
    .cube-left { transform: rotateY(-90deg) translateZ(32px); }
    .cube-right { transform: rotateY(90deg) translateZ(32px); }

    .cube-corner {
        width: 14px;
        height: 14px;
    }

    .view-cube-home-container {
        width: 40px;
        height: 40px;
    }

    .view-cube-home {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
}


/* Responsive design */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    /* Show menu toggle on mobile */
    .menu-toggle {
        display: block;
    }

    /* Left sidebar - hidden on mobile by default */
    .left-sidebar {
        display: none;
        width: 100%;
        height: auto;
        max-height: 50vh;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        position: fixed;
        top: 50px;
        left: 0;
        right: 0;
        z-index: 999;
        background: var(--color-surface);
    }

    /* Show left sidebar when toggled */
    .left-sidebar.visible {
        display: flex;
    }

    /* Right sidebar - takes half screen on mobile */
    .right-sidebar {
        width: 100%;
        height: 50vh;
        min-height: 300px;
        border-left: none;
        border-bottom: 1px solid var(--color-border);
        display: flex;
        flex-direction: column;
        overflow: hidden;
        transition: none; /* Disable transition on mobile */
    }

    .right-sidebar.collapsed {
        height: 0;
        min-height: 0;
        margin-right: 0;
    }

    .left-sidebar.collapsed {
        display: none;
        margin-left: 0;
    }

    /* Sidebar toggle buttons on mobile */
    .sidebar-toggle-btn {
        display: flex;
    }

    .left-sidebar .sidebar-toggle-btn {
        top: 10px;
        right: 10px;
        transform: none;
    }

    .right-sidebar .sidebar-toggle-btn {
        top: 10px;
        left: 10px;
        transform: none;
    }

    /* Legacy sidebar class */
    .sidebar {
        width: 100%;
        height: 50vh;
        min-height: 300px;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        /* Ensure proper flex layout on mobile */
        display: flex;
        flex-direction: column;
        /* Prevent overflow issues */
        overflow: hidden;
    }

    .sidebar-header {
        /* Header stays fixed */
        flex-shrink: 0;
        padding: var(--spacing-md);
    }

    .sidebar-header h1 {
        font-size: 1.25rem;
    }

    .filters {
        /* Filters take minimal space */
        flex-shrink: 0;
        padding: var(--spacing-sm) var(--spacing-md);
        max-height: none;
        overflow: visible;
    }

    /* Show filter toggle on mobile */
    .filter-toggle {
        display: block;
    }

    /* Collapsible filter content on mobile */
    .filter-content.collapsed {
        display: none;
    }

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

    .checkbox-group {
        gap: var(--spacing-sm);
    }

    .checkbox-group label {
        font-size: 0.8rem;
    }

    /* Event list gets ALL remaining space and is scrollable */
    .event-list {
        flex: 1;
        min-height: 0; /* Important for flex scroll */
        overflow-y: auto;
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
        padding: var(--spacing-sm);
    }

    .event-item {
        padding: var(--spacing-sm) var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    .event-item:hover {
        transform: none; /* Disable transform on mobile */
    }

    /* Upload section - Show toggle, collapse content by default on mobile */
    .upload-section {
        display: block; /* Show the section */
    }

    .upload-toggle {
        display: flex; /* Show toggle button */
    }

    .upload-content {
        display: none; /* Hide content by default on mobile */
        max-height: 30vh; /* Limit height on mobile if expanded */
    }

    .upload-content:not(.collapsed) {
        display: block; /* Show when not collapsed */
    }

    .upload-label {
        padding: var(--spacing-sm);
        font-size: 0.75rem;
        margin-bottom: 4px;
    }

    .upload-note {
        font-size: 0.7rem;
    }

    .canvas-container {
        height: 50vh;
        min-height: 300px;
    }

    .scene-controls {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .scene-controls button {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
}

/* Extra small screens - phones in portrait */
@media (max-width: 480px) {
    .container {
        /* Ensure container uses full viewport height */
        height: 100vh;
        height: 100dvh; /* Dynamic viewport height for mobile browsers */
    }

    .sidebar {
        height: 40vh;
        height: 40dvh; /* Dynamic viewport height */
        min-height: 200px;
        max-height: 50vh;
        /* Force visibility */
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .sidebar-header {
        padding: 10px 12px;
        flex-shrink: 0;
    }

    .sidebar-header h1 {
        font-size: 1rem;
        margin-bottom: 4px;
    }

    .event-count {
        font-size: 0.75rem;
    }

    .filters {
        padding: 8px 12px;
        flex-shrink: 0;
    }

    .filter-group > label {
        font-size: 0.75rem;
        margin-bottom: 4px;
    }

    .checkbox-group {
        flex-direction: column;
        gap: 4px;
    }

    .checkbox-group label {
        font-size: 0.75rem;
    }

    #searchInput {
        font-size: 0.75rem;
        padding: 6px;
    }

    .event-list {
        padding: 6px;
        flex: 1;
        min-height: 80px; /* Ensure minimum scrollable area */
    }

    .event-item {
        padding: 8px;
        margin-bottom: 4px;
    }

    .event-id {
        font-size: 0.85rem;
    }

    .event-details {
        font-size: 0.7rem;
        gap: 2px 6px;
    }

    /* Hide upload section on very small screens */
    .upload-section {
        display: none;
    }

    .canvas-container {
        height: 60vh;
        height: 60dvh; /* Dynamic viewport height */
        min-height: 250px;
        /* Ensure canvas is visible */
        display: block !important;
        visibility: visible !important;
    }

    .scene-controls {
        flex-direction: column;
        gap: 4px;
        top: 6px;
        right: 6px;
    }

    .scene-controls button {
        padding: 6px;
        font-size: 0.65rem;
    }
}

/* Very narrow phones - iPhone 12 mini, Galaxy S24 FE */
@media (max-width: 390px) {
    body {
        overflow: hidden;
        height: 100vh;
        height: 100dvh;
    }

    .container {
        height: 100vh;
        height: 100dvh;
        overflow: hidden;
    }

    .sidebar {
        height: 35vh;
        height: 35dvh;
        min-height: 180px;
        max-height: 40vh;
    }

    .sidebar-header {
        padding: 8px 10px;
    }

    .sidebar-header h1 {
        font-size: 0.95rem;
        margin-bottom: 2px;
    }

    .event-count {
        font-size: 0.7rem;
    }

    .filters {
        padding: 6px 10px;
    }

    .filter-toggle {
        padding: 6px;
        font-size: 0.75rem;
    }

    .filter-group {
        margin-bottom: 6px;
    }

    .event-list {
        padding: 4px;
        min-height: 60px;
    }

    .event-item {
        padding: 6px;
        margin-bottom: 3px;
    }

    .canvas-container {
        height: 65vh;
        height: 65dvh;
        min-height: 300px;
    }
}

/* Scrollbar styling */
.event-list::-webkit-scrollbar {
    width: 8px;
}

.event-list::-webkit-scrollbar-track {
    background: var(--color-bg);
}

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

.event-list::-webkit-scrollbar-thumb:hover {
    background: #505050;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Loading state */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-dim);
    font-style: italic;
}

/* ============================================================
   TOP NAVIGATION BAR
   ============================================================ */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    z-index: 1000;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.app-subtitle {
    color: var(--color-text-dim);
    font-size: 0.875rem;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-menu-button:hover {
    background: var(--color-surface-hover);
}

.user-icon {
    font-size: 18px;
}

.user-name {
    font-weight: 500;
}

.user-role {
    font-size: 0.75rem;
    color: var(--color-accent);
    background: rgba(74, 158, 255, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
}

.dropdown-arrow {
    font-size: 10px;
    color: var(--color-text-dim);
}

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1001;
}

.user-menu-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.user-menu-header strong {
    display: block;
    margin-bottom: 4px;
}

.user-menu-header small {
    color: var(--color-text-dim);
}

.user-menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--color-text);
    padding: 12px var(--spacing-md);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-menu-item:hover {
    background: var(--color-surface-hover);
}

.user-menu-dropdown hr {
    margin: 4px 0;
    border: 0;
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   MODAL
   ============================================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

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

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-dim);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

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

.modal-body {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

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

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

.btn-primary {
    width: 100%;
    padding: 12px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.login-hint {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.875rem;
}

.login-hint ul {
    margin: 8px 0 0 0;
    padding-left: 20px;
}

.login-hint li {
    margin: 4px 0;
    color: var(--color-text-dim);
}

/* Adjust main container for top bar */
.container {
    margin-top: 50px;
    height: calc(100vh - 50px);
}


/* ============================================================
   CONFIG CARDS - New collapsible card-based sections
   ============================================================ */

/* Container for all config cards */
.config-cards-container {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1; /* Take remaining space */
    min-height: 0; /* Allow flex child to shrink below content size */
}

/* Individual config card */
.config-card {
    background: var(--color-bg-hover);
    border-radius: 6px;
    border-left: 3px solid var(--color-border);
    transition: all var(--transition-fast);
}

/* Card border colors */
.card-border-amber {
    border-left-color: #f59e0b;
}

.card-border-blue {
    border-left-color: #3b82f6;
}

.card-border-purple {
    border-left-color: #8b5cf6;
}

.card-border-green {
    border-left-color: #10b981;
}

/* Card toggle button (header) */
.card-toggle {
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.card-toggle:hover {
    background: var(--color-surface-hover);
}

.card-toggle .card-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-toggle .toggle-arrow {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.card-toggle.collapsed .toggle-arrow {
    transform: rotate(-90deg);
}

/* Card content */
.card-content {
    padding: 16px;
    max-height: 2000px; /* Large enough for any content */
    overflow: hidden;
    opacity: 1;
    transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
}

.card-content.collapsed {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
}

/* Control groups inside cards */
.control-group {
    margin-bottom: 16px;
}

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

.control-label {
    display: block;
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 6px;
    color: var(--color-text);
}

.control-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-dim);
    margin-top: 4px;
    line-height: 1.4;
}

.control-note {
    font-size: 0.7rem;
    color: var(--color-text-dim);
    margin: 8px 0 0 0;
    text-align: center;
}

/* Control input groups (with buttons) */
.control-input-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.control-btn {
    width: 40px;
    height: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.control-btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
}

.control-input {
    flex: 1;
    padding: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 4px;
    text-align: center;
    font-family: monospace;
    font-size: 14px;
}

.control-input-full {
    width: 100%;
    padding: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 4px;
    font-size: 14px;
}

/* File inputs */
.file-input {
    width: 100%;
    padding: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
}

.file-input::-webkit-file-upload-button {
    padding: 6px 12px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 8px;
}

/* Range inputs */
.range-input {
    width: 100%;
    cursor: pointer;
    accent-color: var(--color-accent);
}

/* Checkbox labels */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
}

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

/* Button styles */
.btn-primary-full {
    width: 100%;
    padding: 10px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: background var(--transition-fast);
}

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

.btn-secondary-full {
    width: 100%;
    padding: 10px;
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

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

.btn-success-full {
    width: 100%;
    padding: 10px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: background var(--transition-fast);
}

.btn-success-full:hover {
    background: #45a049;
}

/* Control subsections */
.control-subsection {
    margin-top: 12px;
    padding: 12px;
    background: var(--color-surface);
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

/* Color grid for background colors */
.color-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-top: 8px;
}

.bg-color-btn {
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    background: linear-gradient(135deg, #fff 47%, #e0e0e0 47%, #e0e0e0 53%, #fff 53%);
    transition: all var(--transition-fast);
}

.bg-color-btn:hover {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

.bg-color-btn.active {
    border-color: var(--color-accent);
    border-width: 3px;
}

.bg-color-btn .color-label {
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    font-size: 9px;
    color: #666;
    background: rgba(255, 255, 255, 0.8);
    padding: 1px;
    text-align: center;
}

/* Advanced section (nested collapsible) */
.advanced-section {
    margin-top: 16px;
    padding: 12px;
    background: rgba(255, 200, 100, 0.1);
    border: 1px solid rgba(255, 200, 100, 0.3);
    border-radius: 4px;
}

.advanced-toggle {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: 8px;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.advanced-toggle:hover {
    background: rgba(255, 200, 100, 0.1);
    border-radius: 4px;
}

.advanced-toggle .toggle-arrow {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.advanced-toggle.collapsed .toggle-arrow {
    transform: rotate(-90deg);
}

.advanced-content {
    margin-top: 12px;
    display: block;
}

.advanced-content.collapsed {
    display: none;
}

.advanced-hint {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin-bottom: 12px;
    line-height: 1.4;
}

.value-report {
    margin-top: 8px;
    padding: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.75rem;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .config-cards-container {
        padding: var(--spacing-sm);
        gap: 8px;
    }

    .card-toggle {
        padding: 10px 12px;
        font-size: 0.85rem;
    }

    .card-content {
        padding: 12px;
    }

    .control-btn {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .color-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}