/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* White Theme with Gray Highlights */
    --color-white: #ffffff;
    --color-gray-50: #f8f9fa;
    --color-gray-100: #f1f3f5;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    --color-black: #000000;

    /* Accents */
    --color-blue: #3b82f6;
    --color-blue-hover: #2563eb;
    --color-blue-light: #dbeafe;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-family: 'Science Gothic', 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-900);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav.scrolled {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.logo-symbol {
    font-size: 1.5rem;
}

.logo-image {
    height: 40px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
}

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

.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--color-black);
    color: var(--color-white) !important;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: var(--color-gray-800);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}

.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-lg);
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-black);
    border: 2px solid var(--color-gray-300);
}

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

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

/* Sections */
.section {
    padding: var(--space-3xl) 0;
}

.section-gray {
    background: var(--color-gray-50);
}

.section-intro {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
    text-align: center;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-700);
}

/* Vision Grid */
.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.vision-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.vision-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-gray-300);
}

.vision-image-container {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--color-gray-100);
}

.vision-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.vision-card:hover .vision-image {
    transform: scale(1.05);
}

.vision-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-100), var(--color-gray-200));
    color: var(--color-gray-600);
    font-size: 1.125rem;
    font-weight: 500;
}

.vision-image:not([src]),
.vision-image[src=""]~.vision-image-placeholder {
    display: flex;
}

.vision-image[src]:not([src=""])~.vision-image-placeholder {
    display: none;
}

.vision-content {
    padding: var(--space-lg);
}

.vision-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-black);
}

.vision-content p {
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* Architecture Grid */
.architecture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.agent-item {
    padding: var(--space-xl);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.agent-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06);
    border-color: var(--color-gray-300);
}

.agent-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--color-blue);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-blue-light), var(--color-gray-100));
    border-radius: 50%;
    font-weight: 300;
    transition: all 0.3s ease;
}

.agent-item:hover .agent-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-hover));
    color: var(--color-white);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.agent-item h3 {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-black);
}

.agent-role {
    color: var(--color-blue);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.agent-item p {
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* Technology Comparison */
.tech-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-2xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.tech-column {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
}

.tech-image-container {
    position: relative;
    width: 100%;
    height: 300px;
    background: var(--color-gray-100);
}

.tech-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tech-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-100), var(--color-gray-200));
    color: var(--color-gray-600);
    font-size: 1.25rem;
    font-weight: 500;
}

.tech-image:not([src]),
.tech-image[src=""]~.tech-image-placeholder {
    display: flex;
}

.tech-image[src]:not([src=""])~.tech-image-placeholder {
    display: none;
}

.tech-content {
    padding: var(--space-xl);
}

.tech-content h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-black);
}

.tech-subtitle {
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
    font-size: 1rem;
}

.tech-list {
    list-style: none;
}

.tech-list li {
    padding-left: 1.5rem;
    margin-bottom: var(--space-sm);
    position: relative;
    color: var(--color-gray-700);
}

.tech-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-blue);
}

.tech-list strong {
    color: var(--color-black);
    font-weight: 600;
}

.tech-divider {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-formula {
    padding: var(--space-lg);
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-300);
    border-radius: 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 1.125rem;
    color: var(--color-black);
    text-align: center;
}

/* Genesis Phase Section */
.section-intro-simple {
    max-width: 1000px;
    margin: 0 auto var(--space-3xl);
}

.section-caption {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-md);
}

.section-title-large {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.genesis-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
    max-width: 1200px;
    margin: 0 auto;
}

.genesis-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.genesis-item:last-child {
    border-bottom: none;
}

.genesis-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.genesis-description {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    max-width: 300px;
}

.genesis-number {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

.genesis-right {
    display: flex;
    align-items: center;
}

.genesis-name {
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-black);
    letter-spacing: -0.03em;
}

/* CTA Section */
.section-cta {
    background: var(--color-gray-900);
    color: var(--color-white);
}

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

.cta-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-white);
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--color-gray-400);
    margin-bottom: var(--space-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

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

.section-cta .btn-primary:hover {
    background: var(--color-gray-100);
}

.section-cta .btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-gray-600);
}

.section-cta .btn-secondary:hover {
    border-color: var(--color-white);
}

/* Footer */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-brand .logo-text {
    font-size: 1.25rem;
    font-weight: 600;
}

.footer-brand .logo-image {
    height: 40px;
    width: auto;
}

.footer-tagline {
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

.footer-links {
    display: contents;
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
    color: var(--color-gray-400);
}

.footer-column a {
    display: block;
    color: var(--color-gray-500);
    text-decoration: none;
    margin-bottom: var(--space-sm);
    transition: color 0.2s ease;
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-gray-800);
    text-align: center;
    color: var(--color-gray-600);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .tech-comparison {
        grid-template-columns: 1fr;
    }

    .tech-divider {
        display: none;
    }

    .genesis-item {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.25rem;
    }

    .section-title-large {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

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

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

    .genesis-name {
        font-size: 3rem;
    }

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}