:root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --secondary-gradient: linear-gradient(45deg, #00ff88, #00cc6a);
            --glass: rgba(255, 255, 255, 0.1);
            --text-light: rgba(255, 255, 255, 0.9);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: var(--primary-gradient);
            overflow-x: hidden;
        }

        /* Advanced Background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            animation: float-particle 15s infinite linear;
        }

        @keyframes float-particle {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-10vh) rotate(360deg);
                opacity: 0;
            }
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Advanced Header with Glassmorphism */
        header {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            text-shadow: 0 4px 8px rgba(0,0,0,0.3);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo::before {
            content: '⚡';
            animation: pulse-glow 2s infinite;
        }

        @keyframes pulse-glow {
            0%, 100% { text-shadow: 0 0 20px #00ff88; }
            50% { text-shadow: 0 0 30px #00ff88, 0 0 40px #00ff88; }
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
            position: relative;
            backdrop-filter: blur(10px);
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
        }

        /* Hero with 3D Effects */
        .hero {
            padding: 150px 0 100px;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            background: linear-gradient(45deg, #ffffff, #00ff88);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            opacity: 0;
            animation: slideUp 1s ease 0.5s both;
        }

        .hero p {
            font-size: 1.4rem;
            margin-bottom: 3rem;
            opacity: 0.9;
            animation: slideUp 1s ease 0.7s both;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .cta-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--secondary-gradient);
            color: white;
            padding: 18px 35px;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.4s ease;
            box-shadow: 0 15px 40px rgba(0, 255, 136, 0.3);
            position: relative;
            overflow: hidden;
        }

        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            transition: left 0.6s;
        }

        .cta-button:hover::before {
            left: 100%;
        }

        .cta-button:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 25px 60px rgba(0, 255, 136, 0.4);
        }

        .cta-secondary {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(10px);
        }

        .cta-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
        }

        /* Interactive Energy Dashboard */
        .dashboard-preview {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            padding: 3rem;
            margin: 4rem auto;
            max-width: 900px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            animation: slideUp 1s ease 1.2s both;
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .dashboard-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            padding: 2rem;
            border-radius: 20px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .dashboard-card:hover {
            transform: scale(1.05) rotateY(5deg);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
            background: rgba(255, 255, 255, 0.15);
        }

        .dashboard-value {
            font-size: 2.5rem;
            font-weight: bold;
            color: #00ff88;
            text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
        }

        /* Advanced Features Section */
        .features {
            padding: 100px 0;
            background: white;
            position: relative;
        }

        .section-title {
            text-align: center;
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 4rem;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .feature-card {
            background: white;
            padding: 3rem 2rem;
            border-radius: 25px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.08);
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary-gradient);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 40px 100px rgba(102, 126, 234, 0.15);
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 90px;
            height: 90px;
            background: var(--primary-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 2rem;
            font-size: 2.5rem;
            color: white;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-icon::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-icon::before {
            width: 100%;
            height: 100%;
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.1) rotateY(180deg);
        }

        /* Interactive Energy Monitor */
        .energy-monitor {
            background: linear-gradient(135deg, #2d3748, #1a202c);
            color: white;
            padding: 100px 0;
            position: relative;
        }

        .monitor-container {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            border-radius: 30px;
            padding: 4rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .energy-chart {
            width: 100%;
            height: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }

        .chart-line {
            position: absolute;
            bottom: 0;
            width: 4px;
            background: var(--secondary-gradient);
            animation: chart-grow 2s ease-in-out;
            border-radius: 2px 2px 0 0;
        }

        @keyframes chart-grow {
            from { height: 0; }
            to { height: var(--height); }
        }

        /* Advanced Calculator */
        .calculator {
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(30px);
            padding: 3rem;
            border-radius: 25px;
            margin-top: 3rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .calc-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .calc-input-group {
            position: relative;
        }

        .calc-input {
            width: 100%;
            padding: 15px 20px;
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 15px;
            background: rgba(255, 255, 255, 0.05);
            color: rgb(37, 32, 32);
            font-size: 1rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .calc-input:focus {
            outline: none;
            border-color: #00ff88;
            box-shadow: 0 0 25px rgba(0, 255, 136, 0.3);
            background: rgba(255, 255, 255, 0.08);
        }

        .calc-input::placeholder {
            color: rgba(32, 30, 30, 0.6);
        }

        .calc-result {
            background: var(--secondary-gradient);
            padding: 2rem;
            border-radius: 20px;
            margin-top: 2rem;
            text-align: center;
            transform: scale(0);
            transition: all 0.5s ease;
        }

        .calc-result.show {
            transform: scale(1);
        }

        /* Interactive Pricing Cards */
        .pricing {
            padding: 100px 0;
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .pricing-card {
            background: white;
            padding: 3rem 2.5rem;
            border-radius: 25px;
            box-shadow: 0 25px 80px rgba(0,0,0,0.08);
            text-align: center;
            position: relative;
            transition: all 0.4s ease;
            border: 2px solid transparent;
            overflow: hidden;
        }

        .pricing-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary-gradient);
            opacity: 0;
            transition: all 0.3s ease;
            z-index: -1;
        }

        .pricing-card.featured {
            transform: scale(1.05);
            border: 2px solid #00ff88;
            background: var(--primary-gradient);
            color: white;
        }

        .pricing-card:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 40px 120px rgba(102, 126, 234, 0.2);
        }

        .pricing-card:hover::before {
            opacity: 0.1;
        }

        /* Contact Form with Advanced Styling */
        .contact {
            padding: 100px 0;
            background: var(--primary-gradient);
            color: white;
            position: relative;
        }

        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: start;
        }

        .contact-info {
            padding: 2rem;
        }

        .contact-form {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            padding: 3rem;
            border-radius: 25px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .form-group {
            margin-bottom: 2rem;
            position: relative;
        }

        .form-input {
            width: 100%;
            padding: 18px 20px;
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 15px;
            background: rgba(255, 255, 255, 0.05);
            color: white;
            font-size: 1rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .form-input:focus {
            outline: none;
            border-color: #00ff88;
            box-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
            background: rgba(255, 255, 255, 0.1);
        }

        .submit-btn {
            background: var(--secondary-gradient);
            color: white;
            padding: 18px 40px;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            position: relative;
            overflow: hidden;
        }

        .submit-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.4s ease;
        }

        .submit-btn:hover::before {
            width: 300px;
            height: 300px;
        }

        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(0, 255, 136, 0.4);
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
            .features-grid, .pricing-grid { grid-template-columns: 1fr; }
            .contact-container { grid-template-columns: 1fr; }
            .nav-links { display: none; }
            .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
        }

        /* Scroll Animations */
        .scroll-reveal {
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s ease;
        }

        .scroll-reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }