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

        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --secondary: #10b981;
            --dark: #1f2937;
            --gray: #6b7280;
            --light-gray: #f3f4f6;
            --white: #ffffff;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            overflow-x: hidden;
        }

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

        nav.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .cta-button {
            background: var(--primary);
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            display: inline-block;
        }

        .cta-button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .mobile-menu span {
            width: 25px;
            height: 3px;
            background: var(--dark);
            border-radius: 3px;
            transition: all 0.3s;
        }

        /* Hero Section */
        .hero {
            padding: 8rem 2rem 4rem;
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        h1 {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--gray);
            margin-bottom: 2rem;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .secondary-button {
            background: white;
            color: var(--primary);
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            border: 2px solid var(--primary);
            transition: all 0.3s;
        }

        .secondary-button:hover {
            background: var(--primary);
            color: white;
        }

        .hero-image {
            margin-top: 3rem;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0);
            }

            50% {
                transform: translateY(-20px);
            }
        }

        /* Features Section */
        .features {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--dark);
        }

        .section-subtitle {
            text-align: center;
            color: var(--gray);
            font-size: 1.1rem;
            margin-bottom: 3rem;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
            border: 1px solid rgba(0, 0, 0, 0.05);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }

        .feature-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.75rem;
            color: var(--dark);
        }

        .feature-card p {
            color: var(--gray);
            line-height: 1.6;
        }

        /* How It Works */
        .how-it-works {
            background: var(--light-gray);
            padding: 5rem 2rem;
        }

        .steps {
            max-width: 1000px;
            margin: 0 auto;
            display: grid;
            gap: 2rem;
        }

        .step {
            display: flex;
            gap: 2rem;
            align-items: start;
            background: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
        }

        .step-number {
            min-width: 60px;
            height: 60px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
        }

        .step-content h3 {
            font-size: 1.4rem;
            margin-bottom: 0.5rem;
            color: var(--dark);
        }

        .step-content p {
            color: var(--gray);
        }

        /* Privacy Section */
        .privacy {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .privacy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .privacy-card {
            text-align: center;
            padding: 2rem;
        }

        .privacy-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 1.5rem;
            background: linear-gradient(135deg, var(--secondary), #059669);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
        }

        .privacy-card h3 {
            margin-bottom: 0.75rem;
            color: var(--dark);
        }

        .privacy-card p {
            color: var(--gray);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            padding: 5rem 2rem;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .cta-section p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .cta-section .cta-button {
            background: white;
            color: var(--primary);
        }

        .cta-section .cta-button:hover {
            background: var(--light-gray);
        }

        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 2rem 1rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1rem;
            color: var(--primary-light);
        }

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

        .footer-section ul li {
            margin-bottom: 0.5rem;
        }

        .footer-section a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-section a:hover {
            color: white;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .mobile-menu {
                display: flex;
            }

            h1 {
                font-size: 2.5rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .step {
                flex-direction: column;
            }

            .section-title {
                font-size: 2rem;
            }
        }

        /* Smooth Scroll */
        html {
            scroll-behavior: smooth;
        }