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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: rgba(139, 92, 246, 0.15);
            height: 100vh;
            overflow: hidden;
        }

        .header {
    position: relative;

.trial-message {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%);
    color: #dc2626;
    font-weight: 700;
    font-size: 11px;
    text-align: center;
    line-height: 1.4;
    width: 500px;
    margin-left: -250px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
}

            background: #2a2a2a;
            border-bottom: 1px solid #e2e8f0;
            height: 85px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 1000;
            position: relative;
        }

        .logo-text h1 {
            margin: 0;
            font-size: 22px;
            font-weight: 700;
            color: #1e293b;
            letter-spacing: -0.5px;
        }

        .logo-text p {
            margin: 4px 0 0 0;
            font-size: 14px;
            color: #64748b;
            font-weight: 500;
        }

        .btn {
            padding: 8px 16px;
            border-radius: 6px;
            border: none;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s;
        }

        .btn-primary {
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: white;
            padding: 12px 24px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
            transition: all 0.3s ease;
        }

        .btn-secondary {
            background: #f1f5f9;
            color: #475569;
            border: 1px solid #e2e8f0;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #2563eb, #1e40af);
            box-shadow: 0 8px 25px rgba(59, 130, 246, 0.6);
            transform: translateY(-3px) scale(1.05);
        }

        .main-container {
            display: grid;
            grid-template-columns: 350px 1fr 300px;
            height: calc(100vh - 85px);
            gap: 0;
        }

        .left-panel {
            background: #2a2a2a;
            border-right: 1px solid #e2e8f0;
            overflow-y: auto;
            scrollbar-width: none; /* Firefox */
            -ms-overflow-style: none; /* IE y Edge */
        }

        .left-panel::-webkit-scrollbar {
            display: none; /* Chrome, Safari, Opera */
        }

        .panel-section {
            padding: 12px;
        }

        .panel-title {
            color: #e5e7eb;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .tool-card {
            background: #2a2a2a;
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 1px 3px rgba(59, 130, 246, 0.1);
        }

        .tool-card:hover {
            box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
            border-color: #555;
            transform: translateY(-2px);
        }

        .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            cursor: pointer;
            transition: background-color 0.2s ease;
        }

        .card-header:hover {
            background: rgba(139, 92, 246, 0.15);
        }

        .header-content {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
        }

        .header-icon {
            width: 36px;
            height: 36px;
            background: #f1f5f9;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #475569;
        }

        .card-title {
            color: #ffffff;
            margin: 0;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
        }

        .card-subtitle {
            color: #e2e8f0;
            margin: 0;
            font-size: 12px;
            color: #64748b;
            line-height: 1.4;
        }

        .expand-icon {
            transition: transform 0.2s ease;
            color: #64748b;
        }

        .expand-icon.expanded {
            transform: rotate(180deg);
        }

        .card-content {
            border-top: 1px solid #f1f5f9;
            padding: 0;
            display: none;
        }

        .card-content.expanded {
            display: block;
        }

        .tool-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 16px;
            border-bottom: 1px solid #f8fafc;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .tool-item:last-child {
            border-bottom: none;
        }

        .tool-item:hover {
            background: rgba(139, 92, 246, 0.15);
        }

        .tool-item.active {
            background: rgba(139, 92, 246, 0.25) !important;
            transition: all 0.2s ease;
        }

        .tool-item i[data-lucide] {
            flex-shrink: 0;
            opacity: 0.8;
            transition: opacity 0.2s ease;
        }

        .tool-item:hover i[data-lucide] {
            opacity: 1;
        }

        .tool-name {
            color: #e5e7eb;
            font-size: 15px;
            font-weight: 500;
        }

        .tool-shortcut {
            font-size: 11px;
            color: #9ca3af;
            background: #f3f4f6;
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Monaco', 'Menlo', monospace;
        }

        .viewer-area {
            position: relative;
            background: #1a1a1a;
        }

        #potree_render_area {
            width: 100%;
            height: 100%;
        }

        .viewer-overlay {
            position: absolute;
            top: 20px;
            left: 20px;
            background: rgba(30, 41, 59, 0.95);
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            color: #e5e7eb;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            z-index: 100;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: #10b981;
            border-radius: 50%;
            display: inline-block;
            margin-right: 8px;
        }

        .upload-zone {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: #64748b;
            border: 2px dashed #d1d5db;
            border-radius: 12px;
            padding: 40px;
            background: rgba(255,255,255,0.9);
        }

        .demo-button {
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            padding: 16px 32px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            margin-top: 20px;
        }

        .hidden {
            display: none;
        }

        .analysis-item {
            background: #2a2a2a;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 12px;
            margin-bottom: 8px;
        }

        .analysis-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }

        .analysis-type {
            font-size: 12px;
            font-weight: 500;
            color: #3b82f6;
            text-transform: uppercase;
        }

        /* OCULTAR COMPLETAMENTE SIDEBAR DE POTREE */
        #potree_sidebar_container,
        .potree_sidebar_container,
        .potree-sidebar,
        div[id*="sidebar"],
        div[class*="sidebar"],
        .potree_menu_toggle,
        #potree_menu_toggle,
        div[class*="menu_toggle"],
        div[id*="menu_toggle"],
        .hamburger-menu,
        .menu-toggle,
        .panel,
        .panel-body,
        .panel-header {
            display: none !important;
            visibility: hidden !important;
        }

        .measurements-list {
            margin-top: 10px;
        }

        .measurement-item {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.03) 0%, rgba(139, 92, 246, 0.03) 100%);
            border: 1px solid rgba(59, 130, 246, 0.15);
            border-radius: 8px;
            padding: 10px 12px;
            margin-bottom: 8px;
            font-size: 12px;
            transition: all 0.2s ease;
        }

        .measurement-item:hover {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.06) 0%, rgba(139, 92, 246, 0.06) 100%);
            border-color: rgba(59, 130, 246, 0.25);
        }

        .measurement-value {
            font-weight: 600;
            color: #059669;
        }

        /* Profile 2D Panel */
        .profile-panel {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 300px;
            background: #2a2a2a;
            border-top: 2px solid #3B82F6;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
            z-index: 500;
            display: none;
            flex-direction: column;
        }

        .profile-header {
            background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%);
            color: white;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            cursor: ns-resize;
        }

        .profile-content {
            flex: 1;
            display: flex;
            overflow: hidden;
        }

        .profile-controls {
            width: 250px;
            background: rgba(139, 92, 246, 0.15);
            border-right: 1px solid #e2e8f0;
            padding: 12px;
            overflow-y: auto;
        }

        .profile-viewer {
            flex: 1;
            position: relative;
            background: #000;
        }

        .width-control {
            margin-bottom: 20px;
        }

        .width-control label {
            display: block;
            font-size: 12px;
            font-weight: 600;
            color: #e5e7eb;
            margin-bottom: 8px;
        }

        .width-slider {
            width: 100%;
            margin-bottom: 8px;
        }

        .width-value {
            font-size: 11px;
            color: #64748b;
            text-align: center;
        }

/* ===== PANEL DERECHO ===== */

.right-panel {
    background: #2a2a2a;
    border-left: 1px solid #e2e8f0;
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE y Edge */
}

.right-panel::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.right-panel .card-content.expanded {
    padding: 18px 22px; /* MÁS PADDING LATERAL */
}

.right-panel .control-label {
    padding: 0 4px; /* SEPARADO DE BORDES */
}

.right-panel .control-slider {
    margin: 0 6px 8px 6px; /* SEPARADO DE BORDES */
}

.right-panel .control-value {
    padding: 0 6px; /* SEPARADO DE BORDES */  
}

.right-panel .class-item {
    padding: 8px 12px; /* MÁS PADDING LATERAL */
}

/* ===== SLIDER PROFESIONAL ===== */
.professional-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, #374151 0%, #6b7280 100%);
    border-radius: 2px;
    outline: none;
    margin: 8px 0;
}

.professional-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: linear-gradient(145deg, #60a5fa, #3b82f6);
    border: 2px solid #1e293b;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: all 0.2s ease;
}

.professional-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 3px 6px rgba(59, 130, 246, 0.4);
}

.professional-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: linear-gradient(145deg, #60a5fa, #3b82f6);
    border: 2px solid #1e293b;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.slider-label {
    font-size: 11px;
    color: #9ca3af;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.slider-value {
    font-size: 13px;
    color: #60a5fa;
    font-weight: 600;
    text-align: center;
    font-family: 'SF Mono', Monaco, monospace;
    background: rgba(96, 165, 250, 0.1);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid rgba(96, 165, 250, 0.2);
}

.class-item {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    margin-bottom: 4px;
    font-size: 11px;
    color: #e5e7eb;
}

.class-item input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin-right: 8px;
}

.class-item span {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    display: inline-block;
    margin-right: 8px;
    border: 1px solid #4b5563;
}

/* Export Category Styles */
.export-category-content {
    display: none;
    padding-left: 20px;
    margin-top: 8px;
    border-left: 2px solid #374151;
    margin-bottom: 12px;
}

.category-count {
    background: #374151;
    color: #9ca3af;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 11px;
    min-width: 18px;
    text-align: center;
    margin-left: auto;
}

.category-arrow {
    color: #9ca3af;
    font-size: 12px;
    margin-left: 8px;
    transition: transform 0.2s ease;
}

.tool-item {
    display: flex;
    align-items: center;
    position: relative;
}

.tool-item .category-count {
    margin-right: 8px;
}

/* Export item styles inside categories */
.export-category-content .export-item {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    margin: 4px 0;
    background: #1f2937;
    border-radius: 6px;
    font-size: 12px;
    color: #e5e7eb;
}

.export-category-content .export-item button {
    background: #374151;
    border: 1px solid #4b5563;
    color: #e5e7eb;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    margin-left: 8px;
    cursor: pointer;
}

.export-category-content .export-item button:hover {
    background: #4b5563;
    border-color: #60A5FA;
}

/* ===== PANEL COLLAPSE SYSTEM ===== */
.collapse-button {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 80px;
    background: rgba(59, 130, 246, 0.9);
    border: 3px solid #3B82F6;
    border-radius: 0 15px 15px 0;
    color: #FFFFFF;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: all 0.3s ease;
    box-shadow: 3px 0 15px rgba(59, 130, 246, 0.5);
    font-size: 18px;
}

.collapse-button:hover {
    background: rgba(59, 130, 246, 1.0);
    border-color: #60A5FA;
    color: #FFFFFF;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 3px 0 20px rgba(59, 130, 246, 0.7);
}

.collapse-button-left {
    left: 340px;
    transition: left 0.4s ease;
}

.collapse-button-right {
    right: 290px;
    border-radius: 15px 0 0 15px;
    transition: right 0.4s ease;
}

/* Botones sin iconos - solo área clickeable */

/* Panel collapse states */
.main-container {
    transition: grid-template-columns 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.left-panel {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE y Edge */
}

.left-panel::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.right-panel {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE y Edge */
}

.right-panel::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

/* Collapsed states */
.main-container.left-collapsed {
    grid-template-columns: 0px 1fr 300px;
}

.main-container.right-collapsed {
    grid-template-columns: 350px 1fr 0px;
}

.main-container.both-collapsed {
    grid-template-columns: 0px 1fr 0px;
}

/* Botones manejados por JavaScript - sin reglas CSS específicas */

.left-panel.collapsed {
    width: 0;
    min-width: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

.right-panel.collapsed {
    width: 0;
    min-width: 0;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

/* Iconos manejados por JavaScript */