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

:root {
    --primary-color: #0e76fd;
    --secondary-color: #1c1c1e;
    --accent-color: #00d4aa;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --bg-dark: #000000;
    --bg-card: #1c1c1e;
    --bg-light: #2c2c2e;
    --border-color: #3a3a3c;
    --success: #30d158;
    --error: #ff453a;
    --gradient-1: linear-gradient(135deg, #0e76fd 0%, #00d4aa 100%);
    --gradient-2: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-primary);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(14, 118, 253, 0.3);
}

.btn-primary.large {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    border: 2px solid var(--primary-color);
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
    text-align: center;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    background: rgba(14, 118, 253, 0.1);
}

.hero {
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.trust-badges {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.trust-badges span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-mockup {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: var(--gradient-1);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(14, 118, 253, 0.3);
    animation: float 6s ease-in-out infinite;
}

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

.products {
    padding: 80px 0;
    background: var(--bg-card);
}

.products h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.product-card {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.product-card.featured {
    border: 2px solid var(--primary-color);
    box-shadow: 0 10px 30px rgba(14, 118, 253, 0.2);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-1);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
    border-radius: 12px;
    margin-bottom: 24px;
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.product-card > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.features-list {
    list-style: none;
    margin-bottom: 24px;
}

.features-list li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.features-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

.features {
    padding: 80px 0;
}

.features h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon.security {
    background: linear-gradient(135deg, #0e76fd 0%, #00d4aa 100%);
}

.feature-icon.control {
    background: linear-gradient(135deg, #00d4aa 0%, #30d158 100%);
}

.feature-icon.compatibility {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.feature-icon.mobile {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

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

.wallet-app {
    padding: 80px 0;
    background: var(--bg-card);
}

.wallet-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.wallet-text h2 {
    font-size: 40px;
    margin-bottom: 20px;
    font-weight: 700;
}

.wallet-text > p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.wallet-features {
    list-style: none;
    margin-bottom: 32px;
}

.wallet-features li {
    padding: 12px 0;
    position: relative;
    padding-left: 32px;
    font-size: 16px;
}

.wallet-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
    font-size: 20px;
}

.app-downloads {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.download-btn {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 14px 24px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 12px;
}

.download-btn:hover {
    border-color: var(--primary-color);
    background: rgba(14, 118, 253, 0.1);
}

.app-mockup {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #2c2c2e 0%, #1c1c1e 100%);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.education {
    padding: 80px 0;
}

.education h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 16px;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 60px;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.education-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.education-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

.education-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--accent-color);
}

.education-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.comparison {
    padding: 80px 0;
    background: var(--bg-card);
}

.comparison h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-light);
    border-radius: 16px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table thead th {
    background: var(--bg-dark);
    font-weight: 700;
    font-size: 16px;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table td.check {
    color: var(--success);
    font-weight: 700;
}

.testimonials {
    padding: 80px 0;
}

.testimonials h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.stars {
    color: #ffd700;
    font-size: 20px;
    margin-bottom: 16px;
}

.testimonial-card > p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    gap: 16px;
    align-items: center;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-1);
}

.testimonial-author strong {
    display: block;
    margin-bottom: 4px;
}

.testimonial-author span {
    color: var(--text-secondary);
    font-size: 14px;
}

.faq {
    padding: 80px 0;
    background: var(--bg-card);
}

.faq h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.cta-final {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(14, 118, 253, 0.1) 0%, rgba(0, 212, 170, 0.1) 100%);
}

.cta-final h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.cta-final p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.footer {
    background: var(--bg-dark);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 18px;
}

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

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 24px;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

@media (max-width: 1024px) {
    .hero-text h1 {
        font-size: 48px;
    }

    .hero-content,
    .wallet-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .products h2,
    .features h2,
    .wallet-text h2,
    .education h2,
    .comparison h2,
    .testimonials h2,
    .faq h2 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: 20px;
        transform: translateX(100%);
        transition: transform 0.3s;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .hero-text p {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .trust-badges {
        flex-direction: column;
        gap: 12px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cta-final h2 {
        font-size: 32px;
    }

    .comparison-table {
        font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 28px;
    }

    .hero-text p {
        font-size: 16px;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .products h2,
    .features h2,
    .wallet-text h2,
    .education h2,
    .comparison h2,
    .testimonials h2,
    .faq h2 {
        font-size: 28px;
    }

    .product-card,
    .feature-card,
    .education-card,
    .testimonial-card,
    .faq-item {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .app-downloads {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
        justify-content: center;
    }
}