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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            color: #1F2937;
            line-height: 1.6;
            overflow-x: hidden;
            box-sizing: border-box;
        }

        html, body {
            height: 100%;
        }

        /* Navbar */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            padding: 0.75rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #4F46E5;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
        }

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

        .nav-links a {
            color: #1F2937;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            cursor: pointer;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #4F46E5;
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a:hover {
            color: #4F46E5;
        }

        .nav-cta {
            display: flex;
            gap: 1rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
            display: inline-block;
        }

        .btn-primary {
            background: #4F46E5;
            color: white;
        }

        .btn-primary:hover {
            background: #4338CA;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(79, 70, 229, 0.3);
        }

        .btn-secondary {
            background: transparent;
            color: #4F46E5;
            border: 2px solid #4F46E5;
        }

        .btn-secondary:hover {
            background: #4F46E5;
            color: white;
            transform: translateY(-2px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #1F2937;
        }

        /* Hero Section */
        .hero {
            margin-top: 80px;
            min-height: 90%;
            background: linear-gradient(135deg, #F0F9FF 0%, #F3F4F6 100%);
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .floating-shape {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(135deg, #60A5FA, #4F46E5);
            opacity: 0.1;
            animation: float 6s ease-in-out infinite;
        }

        .shape-1 {
            width: 300px;
            height: 300px;
            top: 10%;
            right: 10%;
            animation-delay: 0s;
        }

        .shape-2 {
            width: 200px;
            height: 200px;
            bottom: 20%;
            left: 5%;
            animation-delay: 2s;
        }

        .shape-3 {
            width: 150px;
            height: 150px;
            top: 50%;
            right: 30%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-30px) rotate(10deg); }
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: #1F2937;
        }

        .hero-content .highlight {
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.25rem;
            color: #6B7280;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-illustration {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-illustration img {
            width: 100%;
            max-width: 500px;
            height: auto;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(79, 70, 229, 0.3);
            animation: bounce 3s ease-in-out infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }

        /* Features Section */
        .features {
            padding: 6rem 2rem;
            background: white;
        }

        .section-title {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: #1F2937;
        }

        .section-title p {
            font-size: 1.125rem;
            color: #6B7280;
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: #F3F4F6;
            padding: 2rem;
            border-radius: 16px;
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.6s ease forwards;
            cursor: pointer;
        }

        .feature-card:nth-child(1) { animation-delay: 0.1s; }
        .feature-card:nth-child(2) { animation-delay: 0.2s; }
        .feature-card:nth-child(3) { animation-delay: 0.3s; }
        .feature-card:nth-child(4) { animation-delay: 0.4s; }
        .feature-card:nth-child(5) { animation-delay: 0.5s; }
        .feature-card:nth-child(6) { animation-delay: 0.6s; }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(79, 70, 229, 0.15);
            background: white;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.75rem;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #1F2937;
        }

        .feature-card p {
            color: #6B7280;
            line-height: 1.7;
        }

        /* How It Works Section */
        .how-it-works {
            padding: 6rem 2rem;
            background: linear-gradient(135deg, #F0F9FF 0%, #F3F4F6 100%);
        }

        .steps-container {
            max-width: 1000px;
            margin: 0 auto;
            position: relative;
        }

        .step {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            margin-bottom: 4rem;
            align-items: center;
            opacity: 0;
            transform: translateX(-50px);
            animation: slideIn 0.6s ease forwards;
        }

        .step:nth-child(even) {
            grid-template-columns: 1fr 1fr;
            transform: translateX(50px);
        }

        .step:nth-child(even) .step-content {
            order: 2;
        }

        .step:nth-child(even) .step-visual {
            order: 1;
        }

        .step:nth-child(1) { animation-delay: 0.2s; }
        .step:nth-child(2) { animation-delay: 0.4s; }
        .step:nth-child(3) { animation-delay: 0.6s; }
        .step:nth-child(4) { animation-delay: 0.8s; }

        @keyframes slideIn {
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .step-number {
            display: inline-block;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .step-content h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #1F2937;
        }

        .step-content p {
            color: #6B7280;
            font-size: 1.125rem;
            line-height: 1.8;
        }

        .step-visual {
            background: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .step-visual img {
            width: 100%;
            max-width: 300px;
            height: auto;
            border-radius: 8px;
        }

        /* Testimonials Section */
        .testimonials {
            padding: 6rem 2rem;
            background: white;
        }

        .testimonials-container {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
        }

        .testimonial-slider {
            display: flex;
            overflow: hidden;
            position: relative;
        }

        .testimonial-track {
            display: flex;
            transition: transform 0.5s ease;
        }

        .testimonial-card {
            min-width: 100%;
            padding: 3rem;
            background: #F3F4F6;
            border-radius: 16px;
            margin: 0 1rem;
        }

        .testimonial-content {
            font-size: 1.25rem;
            font-style: italic;
            color: #1F2937;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .author-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            overflow: hidden;
        }

        .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .author-info h4 {
            font-weight: 700;
            color: #1F2937;
            margin-bottom: 0.25rem;
        }

        .author-info p {
            color: #6B7280;
            font-size: 0.9rem;
        }

        .slider-controls {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 2rem;
        }

        .slider-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #4F46E5;
            color: white;
            border: none;
            cursor: pointer;
            font-size: 1.25rem;
            transition: all 0.3s ease;
        }

        .slider-btn:hover {
            background: #4338CA;
            transform: scale(1.1);
        }

        .slider-dots {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 1rem;
        }

        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #D1D5DB;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .dot.active {
            background: #4F46E5;
            width: 30px;
            border-radius: 5px;
        }

        /* Subscribe Section */
        .subscribe {
            padding: 6rem 2rem;
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            color: white;
        }

        .subscribe-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-container h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .subscribe-container p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .subscribe-form {
            display: flex;
            gap: 1rem;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .subscribe-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            border: none;
            font-size: 1rem;
            min-width: 250px;
        }

        .subscribe-btn {
            padding: 1rem 2rem;
            background: white;
            color: #4F46E5;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .subscribe-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }

        .subscribe-success {
            display: none;
            margin-top: 1rem;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 8px;
        }

        /* Contact Section */
        .contact {
            padding: 6rem 2rem;
            background: white;
        }

        .contact-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: start;
        }

        .contact-info {
            background: linear-gradient(135deg, #F0F9FF, #F3F4F6);
            padding: 3rem;
            border-radius: 16px;
        }

        .contact-info h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: #1F2937;
        }

        .contact-info p {
            color: #6B7280;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .contact-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
        }

        .contact-item-text h4 {
            font-weight: 700;
            color: #1F2937;
            margin-bottom: 0.25rem;
        }

        .contact-item-text p {
            color: #6B7280;
            margin: 0;
        }

        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .form-group label {
            font-weight: 600;
            color: #1F2937;
        }

        .form-group input,
        .form-group textarea {
            padding: 1rem;
            border: 2px solid #E5E7EB;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
            font-family: inherit;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #4F46E5;
        }

        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }

        .contact-success {
            display: none;
            padding: 1rem;
            background: #D1FAE5;
            color: #065F46;
            border-radius: 8px;
            margin-top: 1rem;
            text-align: center;
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            overflow-y: auto;
            padding: 2rem;
        }

        .modal.active {
            display: flex;
        }

        .modal-content {
            background: white;
            padding: 3rem;
            border-radius: 16px;
            max-width: 800px;
            width: 100%;
            position: relative;
            animation: modalSlideIn 0.3s ease;
            max-height: 90%;
            overflow-y: auto;
        }

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

        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 2rem;
            cursor: pointer;
            color: #6B7280;
            transition: color 0.3s ease;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }

        .modal-close:hover {
            color: #1F2937;
            background: #F3F4F6;
        }

        .modal-header {
            margin-bottom: 2rem;
        }

        .modal-header h2 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1F2937;
            margin-bottom: 0.5rem;
        }

        .modal-header p {
            color: #6B7280;
            font-size: 1.125rem;
        }

        .modal-body {
            color: #1F2937;
            line-height: 1.8;
        }

        .modal-body h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2rem 0 1rem;
            color: #1F2937;
        }

        .modal-body p {
            margin-bottom: 1rem;
            color: #6B7280;
        }

        .modal-body ul {
            margin: 1rem 0 1rem 2rem;
            color: #6B7280;
        }

        .modal-body li {
            margin-bottom: 0.5rem;
        }

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

        .pricing-card {
            background: #F3F4F6;
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
        }

        .pricing-card.featured {
            background: linear-gradient(135deg, #4F46E5, #60A5FA);
            color: white;
            transform: scale(1.05);
        }

        .pricing-card h4 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .pricing-card .price {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }

        .pricing-card .period {
            font-size: 1rem;
            opacity: 0.7;
            margin-bottom: 1.5rem;
        }

        .pricing-features {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .pricing-features li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .pricing-card.featured .pricing-features li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* Auth Modal */
        .auth-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            align-items: center;
            justify-content: center;
        }

        .auth-modal.active {
            display: flex;
        }

        .auth-content {
            background: white;
            padding: 3rem;
            border-radius: 16px;
            max-width: 450px;
            width: 90%;
            position: relative;
            animation: modalSlideIn 0.3s ease;
        }

        .auth-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #6B7280;
            transition: color 0.3s ease;
        }

        .auth-close:hover {
            color: #1F2937;
        }

        .auth-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: #1F2937;
        }

        .auth-subtitle {
            color: #6B7280;
            margin-bottom: 2rem;
        }

        .auth-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .auth-toggle {
            text-align: center;
            margin-top: 1rem;
            color: #6B7280;
        }

        .auth-toggle a {
            color: #4F46E5;
            text-decoration: none;
            font-weight: 600;
            cursor: pointer;
        }

        .auth-toggle a:hover {
            text-decoration: underline;
        }

        /* Footer */
        .footer {
            background: #1F2937;
            color: white;
            padding: 4rem 2rem 2rem;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: #60A5FA;
        }

        .footer-brand p {
            color: #9CA3AF;
            line-height: 1.8;
        }

        .footer-links h4 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 0.75rem;
        }

        .footer-links ul li a {
            color: #9CA3AF;
            text-decoration: none;
            transition: color 0.3s ease;
            cursor: pointer;
        }

        .footer-links ul li a:hover {
            color: #60A5FA;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .social-link {
            width: 40px;
            height: 40px;
            background: #374151;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .social-link:hover {
            background: #4F46E5;
            transform: translateY(-3px);
        }

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid #374151;
            text-align: center;
            color: #9CA3AF;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            }

            .nav-links.active {
                display: flex;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }

            .hero-cta {
                justify-content: center;
            }

            .hero-illustration {
                order: -1;
            }

            .step {
                grid-template-columns: 1fr !important;
            }

            .step:nth-child(even) .step-content,
            .step:nth-child(even) .step-visual {
                order: 0;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-input {
                min-width: 100%;
            }

            .contact-container {
                grid-template-columns: 1fr;
            }

            .modal-content {
                padding: 2rem;
            }

            .modal-header h2 {
                font-size: 2rem;
            }
        }

        .hidden {
            display: none;
        }

        .logged-in .auth-btns {
            display: none;
        }

        .logged-out .user-menu {
            display: none;
        }

        .user-menu {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .user-name {
            font-weight: 600;
            color: #1F2937;
        }

        .btn-logout {
            padding: 0.5rem 1rem;
            background: #EF4444;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-logout:hover {
            background: #DC2626;
            transform: translateY(-2px);
        }

        .feature-detail-img {
            width: 100%;
            max-width: 600px;
            margin: 2rem auto;
            display: block;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }