:root {
            --primary-color: #334D6C;
            --secondary-color: #2c3e50;
            --accent-color: #F97316;
            --light-bg: #f8f9fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--light-bg);
            color: #333;
            line-height: 1.6;
        }
        
        /* Hero Section */
        .lab-hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }
        
        .lab-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon points="0,1000 1000,0 1000,1000" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: cover;
        }
        
        .lab-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .lab-subtitle {
            font-size: 1.4rem;
            opacity: 0.9;
            margin-bottom: 30px;
        }
        
        /* Section Styling */
        .lab-section {
            padding: 80px 0;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 40px;
            position: relative;
            text-align: center;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            border-radius: 2px;
        }
        
        /* Presentation Card */
        .presentation-card {
            background: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            border-left: 5px solid var(--accent-color);
            margin-bottom: 40px;
        }
        
        .presentation-text {
            font-size: 1.2rem;
            line-height: 1.8;
            color: #5a5a5c;
            text-align: justify;
        }
        
        /* Info Cards */
        .info-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
            border-top: 4px solid var(--accent-color);
        }
        
        .info-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }
        
        .info-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--accent-color), #fd7e14);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.8rem;
        }
        
        .info-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .info-content {
            color: #5a5a5c;
            line-height: 1.6;
        }
        
        .info-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-color);
            margin-top: 10px;
        }
        
        /* Director Card */
        .director-card {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            box-shadow: 0 20px 60px rgba(51, 77, 108, 0.3);
        }
        
        .director-avatar {
            width: 120px;
            height: 120px;
            background: var(--accent-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: white;
            font-size: 2.5rem;
            font-weight: 700;
            border: 5px solid rgba(255,255,255,0.2);
        }
        
        .director-name {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .director-title {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 20px;
        }
        
        /* Members Grid */
        .members-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .member-item {
            background: white;
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            border-left: 3px solid var(--primary-color);
        }
        
        .member-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        
        .member-icon {
            color: var(--accent-color);
            font-size: 2rem;
            margin-bottom: 15px;
        }
        
        .member-name {
            font-weight: 600;
            color: var(--primary-color);
            margin-bottom: 5px;
        }
        
        /* Timeline */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--accent-color);
            transform: translateX(-50%);
        }
        
        .timeline-item {
            position: relative;
            margin-bottom: 50px;
        }
        
        .timeline-content {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            position: relative;
            width: 45%;
        }
        
        .timeline-item:nth-child(odd) .timeline-content {
            left: 0;
        }
        
        .timeline-item:nth-child(even) .timeline-content {
            left: 55%;
        }
        
        .timeline-content::before {
            content: '';
            position: absolute;
            top: 20px;
            width: 20px;
            height: 20px;
            background: var(--accent-color);
            border-radius: 50%;
        }
        
        .timeline-item:nth-child(odd) .timeline-content::before {
            right: -60px;
        }
        
        .timeline-item:nth-child(even) .timeline-content::before {
            left: -60px;
        }
        
        /* Stats Section */
        .stats-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 80px 0;
        }
        
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .lab-title {
                font-size: 2.5rem;
            }
            
            .lab-subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .presentation-card {
                padding: 30px;
            }
            
            .timeline::before {
                left: 30px;
            }
            
            .timeline-content {
                width: calc(100% - 80px);
                left: 80px !important;
            }
            
            .timeline-content::before {
                left: -60px !important;
            }
        }