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

html { /* Apply smooth scroll behavior at the root for overall page */
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0a0a0f; 
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    position: fixed; /* This is the correct positioning */
    top: 0;
    width: 100%;
    z-index: 1000; /* Ensures header stays on top */
    background: rgba(10, 10, 15, 0.95); 
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); 
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem; /* This contributes to header height */
}

.logo {
    height: 2.5rem; /* This contributes to header height (total nav height becomes ~4.5rem) */
}

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

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #00f5ff; 
}

.cta-button {
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 245, 255, 0.3); 
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative; 
    background: radial-gradient(ellipse at center, rgba(0, 245, 255, 0.1) 0%, transparent 70%);
    padding-top: 4.5rem; /* Added padding to offset for fixed header height */
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 50%, #ff0080 100%); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #b0b0b0;
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-description {
    font-size: 1.2rem;
    color: #d0d0d0;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #00f5ff; 
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Company Overview */
.company-overview {
    padding: 6rem 0;
    background: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 100%); 
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.overview-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overview-content p {
    color: #d0d0d0;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.overview-features {
    list-style: none;
}

.overview-features li {
    padding: 0.75rem 0;
    color: #b0b0b0;
    position: relative;
    padding-left: 2rem;
    font-size: 1.1rem;
}

.overview-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00f5ff; 
    font-weight: bold;
    font-size: 1.2rem;
}

.overview-visual {
    background: rgba(0, 245, 255, 0.1); 
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1); 
}

.overview-visual h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #00f5ff; 
}

/* Strategic Directions */
.directions {
    padding: 6rem 0;
    background: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 100%); 
}

.directions-header {
    text-align: center;
    margin-bottom: 5rem;
}

.directions-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.directions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: stretch;
}

.direction-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.1); 
    transition: transform 0.4s ease, background 0.4s ease, border 0.4s ease;
    position: relative;
    overflow: hidden;
}

.direction-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.1) 0%, rgba(255, 0, 128, 0.1) 100%); 
    opacity: 0;
    transition: opacity 0.4s ease;
}

.direction-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 245, 255, 0.3); 
}

.direction-card:hover::before {
    opacity: 1;
}

.direction-content {
    position: relative;
    z-index: 2;
}

.direction-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.direction-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ffffff;
}

.direction-card .subtitle {
    font-size: 1.1rem;
    color: #00f5ff; 
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.direction-card p {
    color: #d0d0d0;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.5rem 0;
    color: #b0b0b0;
    position: relative;
    padding-left: 1.5rem;
}

.features-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #00f5ff; 
    font-weight: bold;
}

.learn-more {
    background: rgba(0, 245, 255, 0.1); 
    color: #00f5ff; 
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid rgba(0, 245, 255, 0.3); 
    transition: all 0.3s ease;
    display: inline-block;
}

.learn-more:hover {
    background: rgba(0, 245, 255, 0.2); 
    transform: translateY(-2px);
}

/* Technology Deep Dive */
.tech-deep-dive {
    padding: 6rem 0;
    background: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 100%); 
}

.tech-header {
    text-align: center;
    margin-bottom: 5rem;
}

.tech-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #ffffff;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.tech-block {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1); 
    transition: all 0.3s ease;
}

.tech-block:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 245, 255, 0.3); 
    transform: translateY(-5px);
}

.tech-block h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #00f5ff; 
}

.tech-block p {
    color: #d0d0d0;
    line-height: 1.6;
}

/* Use Cases Section */
.use-cases {
    padding: 6rem 0;
}

.use-cases-header {
    text-align: center;
    margin-bottom: 4rem;
}

.use-cases-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1); 
    transition: all 0.3s ease;
}

.use-case-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(0, 245, 255, 0.3); 
    transform: translateY(-5px);
}

.use-case-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.use-case-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.use-case-card p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* Research & Innovation */
.research-innovation {
    padding: 6rem 0;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.1) 0%, rgba(255, 0, 128, 0.1) 100%); 
}

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

.research-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: #ffffff;
}

.research-content p {
    font-size: 1.2rem;
    color: #d0d0d0;
    margin-bottom: 3rem;
    line-height: 1.7;
}

.research-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.highlight-item {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 2rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1); 
}

.highlight-number {
    font-size: 2rem;
    font-weight: 800;
    color: #00f5ff; 
    display: block;
    margin-bottom: 0.5rem;
}

.highlight-label {
    color: #b0b0b0;
    font-size: 0.9rem;
}

/* Partners & Ecosystem */
.partners {
    padding: 6rem 0;
}

.partners-header {
    text-align: center;
    margin-bottom: 4rem;
}

.partners-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #ffffff;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.partner-category {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1); 
    text-align: center;
}

.partner-category h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #00f5ff; 
}

.partner-category ul {
    list-style: none;
    color: #b0b0b0;
}

.partner-category li {
    padding: 0.3rem 0;
}

/* Final CTA */
.final-cta {
    padding: 6rem 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(255, 0, 128, 0.1) 0%, transparent 70%); 
}

.final-cta h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #00f5ff 100%); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.final-cta p {
    font-size: 1.2rem;
    color: #d0d0d0;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.primary-cta {
    background: linear-gradient(135deg, #00f5ff 0%, #ff0080 100%); 
    color: #ffffff;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.primary-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 245, 255, 0.4); 
}

.secondary-cta {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.secondary-cta:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

/* Footer */
footer {
    background: #0a0a0f; 
    padding: 3rem 0 2rem; 
    border-top: 1px solid rgba(255, 255, 255, 0.1); 
}

.footer-top-content {
    display: flex;
    flex-direction: column; 
    align-items: center;
    gap: 1.5rem; 
    margin-bottom: 2rem;
}

.footer-logo-container img {
    height: 2rem; 
    width: auto;
}

.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 0.75rem 1.5rem; 
}

.footer-links-list li a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem; 
}

.footer-links-list li a:hover {
    color: #00f5ff; 
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05); 
    color: #666;
    font-size: 0.85rem; 
}


/* Responsive Design */
@media (max-width: 968px) {
     .directions-grid, .overview-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .nav-links { 
        display: none;
    }

     .hero h1 {
        font-size: 3rem;
    }

    .direction-card, .tech-block {
        padding: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (min-width: 768px) { 
    .footer-top-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 2rem; 
    }

    .footer-links-list {
        justify-content: flex-end; 
         gap: 1rem 2rem; 
    }
}


@media (max-width: 640px) {
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tech-grid, .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .research-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-links-list { 
        flex-direction: column;
        align-items: center;
        gap: 0.75rem; 
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content > * {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.4s; }
.hero-content > *:nth-child(4) { animation-delay: 0.6s; }
.hero-content > *:nth-child(5) { animation-delay: 0.8s; }