.page-header {
            background: linear-gradient(rgba(26, 71, 42, 0.9), rgba(26, 71, 42, 0.7)),
                        url('../images/modern/modern-header.jpg');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            padding: 8rem 0 4rem;
            margin-top: 70px;
        }
        
        .page-subtitle {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin-bottom: 2rem;
        }
        
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        
        .tech-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            position: relative;
        }
        
        .tech-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .tech-icon {
            background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
            color: white;
            font-size: 2.5rem;
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin: -40px auto 1rem;
            position: relative;
            z-index: 1;
        }
        
        .tech-content {
            padding: 2rem;
            text-align: center;
        }
        
        .tech-stats {
            display: flex;
            justify-content: space-around;
            margin: 1rem 0;
            padding: 1rem;
            background: #f9f9f9;
            border-radius: 10px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            display: block;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .project-showcase {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        
        .project-slider {
            position: relative;
            overflow: hidden;
        }
        
        .slides-container {
            display: flex;
            transition: transform 0.5s ease;
        }
        
        .slide {
            min-width: 100%;
            position: relative;
        }
        
        .slide-img {
            width: 100%;
            height: 500px;
            object-fit: cover;
        }
        
        .slide-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 2rem;
        }
        
        .slider-controls {
            display: flex;
            justify-content: center;
            gap: 1rem;
            padding: 1rem;
            background: #f9f9f9;
        }
        
        .slider-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        
        .slider-btn:hover {
            background: var(--dark-color);
            transform: scale(1.1);
        }
        
        .slide-indicators {
            display: flex;
            gap: 10px;
            justify-content: center;
            padding: 1rem;
        }
        
        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .indicator.active {
            background: var(--primary-color);
            transform: scale(1.2);
        }
        
        .energy-calculator {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        
        .calculator-form {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .form-group {
            margin-bottom: 1rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        
        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        
        .calculate-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            grid-column: 1 / -1;
            justify-self: center;
        }
        
        .calculate-btn:hover {
            background: var(--dark-color);
            transform: translateY(-3px);
        }
        
        .results-panel {
            background: #f0f9f0;
            padding: 1.5rem;
            border-radius: 10px;
            margin-top: 2rem;
            display: none;
        }
        
        .results-panel.show {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .comparison-chart {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2rem 0;
        }
        
        .chart-item {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        .chart-bar {
            height: 20px;
            background: #e0e0e0;
            border-radius: 10px;
            margin: 1rem 0;
            overflow: hidden;
        }
        
        .chart-fill {
            height: 100%;
            background: var(--primary-color);
            border-radius: 10px;
            transition: width 1s ease;
        }
        
        .video-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .video-item {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .video-thumbnail {
            position: relative;
            width: 100%;
            height: 200px;
            overflow: hidden;
        }
        
        .video-thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .video-thumbnail:hover img {
            transform: scale(1.05);
        }
        
        .play-overlay {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(46, 139, 87, 0.8);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
        }
        
        .video-info {
            padding: 1.5rem;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            z-index: 1000;
            align-items: center;
            justify-content: center;
        }
        
        .modal.show {
            display: flex;
        }
        
        .modal-content {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            max-width: 800px;
            width: 90%;
            max-height: 90vh;
            overflow-y: auto;
        }
        
        .close-modal {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 2rem;
            color: white;
            cursor: pointer;
        }
        
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.5rem;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
        }
        
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background: var(--dark-color);
            transform: translateY(-5px);
        }
        
        .innovations-timeline {
            position: relative;
            max-width: 800px;
            margin: 3rem auto;
        }
        
        .timeline-line {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background: var(--primary-color);
        }
        
        .innovation-item {
            margin: 2rem 0;
            position: relative;
            width: 45%;
        }
        
        .innovation-item:nth-child(odd) {
            left: 0;
            text-align: right;
            padding-right: 3rem;
        }
        
        .innovation-item:nth-child(even) {
            left: 55%;
            text-align: left;
            padding-left: 3rem;
        }
        
        .innovation-point {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            background: var(--secondary-color);
            border-radius: 50%;
            border: 4px solid var(--primary-color);
        }
        
        .innovation-item:nth-child(odd) .innovation-point {
            right: -12px;
        }
        
        .innovation-item:nth-child(even) .innovation-point {
            left: -12px;
        }
        
        .cost-benefit {
            background: linear-gradient(135deg, #f0f9f0, #e0f2e0);
            padding: 3rem;
            border-radius: 15px;
            margin: 2rem 0;
        }
        
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .benefit-card {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        
        @media (max-width: 768px) {
            .comparison-chart {
                grid-template-columns: 1fr;
            }
            
            .innovation-item {
                width: 100%;
                left: 0 !important;
                text-align: left !important;
                padding: 0 0 0 3rem !important;
            }
            
            .timeline-line {
                left: 30px;
            }
            
            .innovation-item:nth-child(odd) .innovation-point {
                right: auto;
                left: -12px;
            }
            
            .tech-stats {
                flex-direction: column;
                gap: 1rem;
            }
        }