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

:root {
    --primary-blue: #0066FF;
    --primary-blue-hover: #0052cc;
    --dark-navy: #0d1b2a;
    --dark-navy-light: #1a2332;
    --green: #22c55e;
    --green-bg: #dcfce7;
    --red: #ef4444;
    --red-bg: #fee2e2;
    --purple: #a855f7;
    --purple-bg: #f3e8ff;
    --blue-bg: #dbeafe;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container-max: 1280px;
    --header-height: 72px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul { list-style: none; }

img { max-width: 100%; height: auto; }

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--dark-navy);
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
}

.logo-icon { width: 40px; height: 40px; }

.logo-text {
    font-size: 16px;
    line-height: 1.2;
    font-weight: 400;
}

.logo-text strong { font-weight: 700; }

.main-nav { display: flex; align-items: center; }

.nav-list {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 0;
    opacity: 0.9;
}

.nav-item a:hover { opacity: 1; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.login-link {
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
}

.login-link:hover { opacity: 0.9; }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: all 0.3s ease;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover { background-color: var(--primary-blue-hover); }

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover { background-color: rgba(255, 255, 255, 0.1); }

.btn-lg { padding: 14px 28px; font-size: 16px; }

.hero {
    margin-top: var(--header-height);
    background: var(--dark-navy);
    padding: 60px 0 0;
    overflow: hidden;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 42% 58%;
    gap: 0;
    align-items: stretch;
    min-height: 500px;
}

.hero-text { 
    color: var(--white); 
    padding-right: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-bottom: 120px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.text-blue { color: var(--primary-blue); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-purple { color: var(--purple); }

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    opacity: 0.85;
    margin-bottom: 32px;
    max-width: 480px;
}
.hero-compatibility {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    opacity: 0.75;
}

.hero-compatibility svg { flex-shrink: 0; }

.hero-image-container {
    position: relative;
    overflow: hidden;
}

.hero-image-bg {
    position: absolute;
    top: -20px;
    left: -550px;
    right: -20px;
    bottom: 0;
    background: url('/hero-bg.png') left top/cover no-repeat;
}

.hero-image-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--dark-navy) 0%, rgba(13, 27, 42, 0.5) 20%, transparent 40%);
}

.hero-image-bg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, var(--dark-navy) 0%, transparent 100%);
}

.hero-labels {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 24px 24px 32px;
    z-index: 1;
}

.hero-labels-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.hero-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--white);
    margin-right:50px;
}

.label-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    backdrop-filter: blur(8px);
}

.label-title {
    font-size: 13px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 6px;
}

.label-desc {
    font-size: 11px;
    opacity: 0.85;
    line-height: 1.4;
}

.products {
    padding: 100px 0;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary-blue);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-500);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s ease;
    position: relative;
}

.product-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.1);
}

.product-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product-icon.blue { background-color: var(--blue-bg); color: var(--primary-blue); }
.product-icon.green { background-color: var(--green-bg); color: var(--green); }
.product-icon.red { background-color: var(--red-bg); color: var(--red); }
.product-icon.purple { background-color: var(--purple-bg); color: var(--purple); }

.new-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background-color: var(--primary-blue);
    color: var(--white);
    font-size: 10px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.product-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.product-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.learn-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.learn-more:hover { gap: 8px; }

.platform {
    padding: 80px 0;
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.platform h2 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 48px;
}

.platform-features {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 32px;
}

.feature { text-align: center; }

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--gray-600);
}

.feature h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 6px;
}

.feature p {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.5;
}

.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark-navy) 0%, var(--dark-navy-light) 100%);
}

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

.cta-text { color: var(--white); }

.cta-text h2 {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.cta-text p {
    font-size: 18px;
    opacity: 0.85;
    margin-bottom: 32px;
    line-height: 1.7;
}
.cta-benefits {
    display: flex;
    gap: 32px;
}

.cta-benefits span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.8;
}

.cta-benefits svg {
    flex-shrink: 0;
    color: var(--green);
}

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

.glasses-image {
    width: 100%;
    max-width: 480px;
    height: 320px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.glasses-svg {
    width: 320px;
    height: 120px;
}

.footer {
    background-color: var(--dark-navy);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(6, 1fr);
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand .logo { margin-bottom: 20px; }

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0.9;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 13px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.footer-col a:hover { opacity: 1; }

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
    transition: all 0.2s ease;
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    opacity: 1;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 13px;
    opacity: 0.6;
}

@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text {
        padding-right: 0;
        padding-bottom: 40px;
    }

    .hero-image-container {
        height: 400px;
    }

    .hero-image-bg {
        left: 0;
        top: 0;
    }

    .hero-image-bg::before {
        background: linear-gradient(to top, var(--dark-navy) 0%, transparent 30%);
    }

    .hero-image-bg::after {
        display: none;
    }

    .hero-labels {
        left: 0;
        padding: 16px 16px 24px;
    }

    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .platform-features { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 992px) {
    .main-nav { display: none; }
    .mobile-menu-btn { display: flex; }

    .nav-list.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--dark-navy);
        padding: 24px;
        gap: 16px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .hero h1 { font-size: 36px; }
    .section-header h2 { font-size: 32px; }

    .cta-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-text h2 { font-size: 36px; }
    .cta-benefits { justify-content: center; }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .hero { padding: 40px 0 60px; }
    .hero h1 { font-size: 28px; }
    .hero-subtitle { font-size: 16px; }
    .hero-image-container { height: 320px; }
    .hero-labels { flex-wrap: wrap; gap: 12px; }
    .hero-label { min-width: 80px; }
    .products { padding: 60px 0; }
    .products-grid { grid-template-columns: 1fr; }
    .platform-features { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 24px; }
    .section-header h2 { font-size: 24px; }
    .platform-features { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}