:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #0ea5e9;
            --accent: #06b6d4;
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --gray-light: #e2e8f0;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--light);
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header & Navigation */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 24px;
            color: var(--primary);
        }
        
        .logo i {
            margin-right: 10px;
            color: var(--accent);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: color 0.3s;
        }
        
        nav ul li a:hover {
            color: var(--primary);
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: white;
            padding: 160px 0 100px;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 20px;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .btn {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            font-size: 16px;
        }
        
        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .btn-light {
            background-color: white;
            color: var(--primary);
        }
        
        .btn-light:hover {
            background-color: var(--gray-light);
        }
        
        .btn-large {
            padding: 16px 40px;
            font-size: 18px;
        }
        
        /* Stats Section */
        .stats {
            background-color: white;
            padding: 80px 0;
            text-align: center;
        }
        
        .stats-container {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .stat-item {
            flex: 1;
            min-width: 200px;
        }
        
        .stat-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 18px;
            color: var(--gray);
        }
        
        /* Features Section */
        .section {
            padding: 100px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }
        
        .section-title p {
            font-size: 18px;
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
        }
        
        .features {
            background-color: var(--light);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            font-size: 40px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        
        .feature-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .feature-description {
            color: var(--gray);
        }
        
        /* How It Works */
        .how-it-works {
            background-color: white;
        }
        
        .steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 50px;
        }
        
        .step {
            flex: 1;
            min-width: 250px;
            text-align: center;
            position: relative;
        }
        
        .step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 40px;
            right: -15%;
            width: 30%;
            height: 2px;
            background-color: var(--gray-light);
            display: none;
        }
        
        @media (min-width: 768px) {
            .step:not(:last-child)::after {
                display: block;
            }
        }
        
        .step-number {
            width: 80px;
            height: 80px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            font-weight: 700;
            margin: 0 auto 20px;
        }
        
        .step-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .step-description {
            color: var(--gray);
        }
        
        /* Testimonials */
        .testimonials {
            background-color: var(--light);
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .testimonial-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 20px;
            color: var(--dark);
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            overflow: hidden;
            margin-right: 15px;
        }
        
        .testimonial-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .testimonial-name {
            font-weight: 600;
        }
        
        .testimonial-position {
            color: var(--gray);
            font-size: 14px;
        }
        
        /* Pricing */
        .pricing {
            background-color: white;
        }
        
        .pricing-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 50px;
        }
        
        .toggle-label {
            font-weight: 500;
            margin: 0 10px;
        }
        
        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 60px;
            height: 34px;
        }
        
        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }
        
        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--gray-light);
            transition: .4s;
            border-radius: 34px;
        }
        
        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 26px;
            width: 26px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }
        
        input:checked + .toggle-slider {
            background-color: var(--primary);
        }
        
        input:checked + .toggle-slider:before {
            transform: translateX(26px);
        }
        
        .pricing-plans {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .pricing-plan {
            background-color: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            flex: 1;
            min-width: 300px;
            max-width: 350px;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 2px solid var(--gray-light);
        }
        
        .pricing-plan:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .pricing-plan.featured {
            border-color: var(--primary);
            position: relative;
            z-index: 1;
        }
        
        .pricing-plan.featured::before {
            content: 'Most Popular';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
        }
        
        .plan-name {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 15px;
            text-align: center;
        }
        
        .plan-price {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            text-align: center;
            color: var(--primary);
        }
        
        .plan-price span {
            font-size: 16px;
            font-weight: 400;
            color: var(--gray);
        }
        
        .plan-features {
            list-style: none;
            margin-bottom: 30px;
        }
        
        .plan-features li {
            padding: 10px 0;
            border-bottom: 1px solid var(--gray-light);
        }
        
        .plan-features li:last-child {
            border-bottom: none;
        }
        
        .plan-features li i {
            color: var(--success);
            margin-right: 10px;
        }
        
        .plan-features li.unavailable {
            color: var(--gray);
            text-decoration: line-through;
        }
        
        .plan-features li.unavailable i {
            color: var(--gray);
        }
        
        .plan-button {
            text-align: center;
        }
        
        /* FAQ */
        .faq {
            background-color: var(--light);
        }
        
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            background-color: white;
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
        }
        
        .faq-question i {
            transition: transform 0.3s;
        }
        
        .faq-answer {
            background-color: white;
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s, padding 0.3s;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 1000px;
        }
        
        /* CTA */
        .cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: white;
            text-align: center;
            padding: 80px 0;
        }
        
        .cta h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .cta p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 80px 0 20px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }
        
        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
        }
        
        .footer-logo i {
            margin-right: 10px;
            color: var(--accent);
        }
        
        .footer-description {
            color: var(--gray-light);
            margin-bottom: 20px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
        }
        
        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: background-color 0.3s;
        }
        
        .social-link:hover {
            background-color: var(--primary);
        }
        
        .footer-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: var(--gray-light);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .footer-contact {
            list-style: none;
        }
        
        .footer-contact li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        
        .footer-contact i {
            margin-right: 10px;
            color: var(--accent);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray-light);
            font-size: 14px;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                padding: 15px;
            }
            
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
            }
            
            nav.active {
                display: block;
            }
            
            nav ul {
                flex-direction: column;
                padding: 20px;
            }
            
            nav ul li {
                margin: 10px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .hero h1 {
                font-size: 36px;
            }
            
            .hero p {
                font-size: 18px;
            }
            
            .section-title h2 {
                font-size: 30px;
            }
            
            .features-grid, .testimonial-grid {
                grid-template-columns: 1fr;
            }
            
            .step:not(:last-child)::after {
                display: none;
            }
        }