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

body{
    font-family:Arial, Helvetica, sans-serif;
    background:#050816;
    color:#e8f0ff;
    overflow-x:hidden;
    line-height:1.7;
    background-image:
        radial-gradient(circle at top left, rgba(0,180,255,0.15), transparent 30%),
        radial-gradient(circle at bottom right, rgba(157,0,255,0.18), transparent 35%);
}

a{
    text-decoration:none;
    transition:0.3s ease;
}

img{
    max-width:100%;
    display:block;
}

nav{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    z-index:1000;
    background:rgba(5,8,22,0.8);
    backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,0.08);
}

.nav-shell{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:22px 0;
}

.brand a{
    color:#ffffff;
    font-size:28px;
    font-weight:bold;
    letter-spacing:2px;
}

nav ul{
    display:flex;
    gap:28px;
    list-style:none;
}

nav ul li a{
    color:#d6dcff;
    font-size:15px;
    text-transform:uppercase;
    letter-spacing:1px;
}

nav ul li a:hover{
    color:#64d5ff;
}

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

.hero-grid{
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:60px;
    align-items:center;
}

.hero-tag{
    display:inline-block;
    margin-bottom:24px;
    padding:10px 18px;
    border:1px solid rgba(255,255,255,0.15);
    border-radius:100px;
    color:#7ad9ff;
    background:rgba(255,255,255,0.05);
}

.hero-content h1{
    font-size:72px;
    line-height:1.05;
    margin-bottom:30px;
}

.hero-content p{
    font-size:19px;
    color:#b7c1d8;
    margin-bottom:35px;
}

.hero-actions{
    display:flex;
    gap:18px;
    flex-wrap:wrap;
}

.primary-button,
.secondary-button{
    display:inline-block;
    padding:16px 28px;
    border-radius:12px;
    font-weight:bold;
}

.primary-button{
    background:linear-gradient(90deg,#00bfff,#7f5cff);
    color:#fff;
}

.secondary-button{
    border:1px solid rgba(255,255,255,0.15);
    color:#fff;
}

.hero-visual img{
    border-radius:28px;
    border:1px solid rgba(255,255,255,0.08);
    box-shadow:0 0 60px rgba(0,150,255,0.2);
}

.section-shell{
    padding:110px 0;
}

.section-heading{
    text-align:center;
    margin-bottom:70px;
}

.section-heading span{
    color:#66d5ff;
    text-transform:uppercase;
    letter-spacing:2px;
    display:block;
    margin-bottom:15px;
}

.section-heading h2{
    font-size:48px;
    max-width:900px;
    margin:auto;
}

.glass-card{
    padding:35px;
    border-radius:24px;
    background:rgba(255,255,255,0.04);
    border:1px solid rgba(255,255,255,0.08);
    height:100%;
    backdrop-filter:blur(10px);
}

.glass-card h3{
    margin-bottom:18px;
}

.immersive-panel{
    padding:120px 0;
    background:rgba(255,255,255,0.03);
}

.immersive-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:70px;
    align-items:center;
}

.immersive-grid img{
    border-radius:28px;
}

.immersive-grid h2{
    font-size:52px;
    margin-bottom:24px;
}

.immersive-grid p{
    color:#b8c1d6;
    margin-bottom:22px;
}

.system-card{
    padding:24px;
    border-radius:24px;
    background:rgba(255,255,255,0.04);
    border:1px solid rgba(255,255,255,0.08);
    height:100%;
}

.system-card img{
    border-radius:18px;
    margin-bottom:24px;
}

.quote-zone{
    padding:120px 0;
    text-align:center;
}

.quote-zone blockquote{
    max-width:1000px;
    margin:auto;
    font-size:40px;
    line-height:1.4;
    color:#dce8ff;
}

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

.network-text p{
    margin-bottom:25px;
    color:#bac6db;
}

.network-image img{
    border-radius:28px;
}

.timeline{
    position:relative;
    max-width:900px;
    margin:auto;
}

.timeline::before{
    content:'';
    position:absolute;
    left:20px;
    top:0;
    width:2px;
    height:100%;
    background:rgba(255,255,255,0.15);
}

.timeline-item{
    position:relative;
    margin-left:70px;
    margin-bottom:50px;
    padding:28px;
    border-radius:20px;
    background:rgba(255,255,255,0.04);
}

.timeline-item::before{
    content:'';
    position:absolute;
    left:-60px;
    top:32px;
    width:18px;
    height:18px;
    border-radius:50%;
    background:#66d5ff;
}

.gallery-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:30px;
}

.gallery-grid img{
    border-radius:24px;
    min-height:320px;
    object-fit:cover;
}

footer{
    padding:90px 0 40px;
    background:#040510;
    border-top:1px solid rgba(255,255,255,0.08);
}

.footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr;
    gap:50px;
    margin-bottom:50px;
}

footer h3,
footer h4{
    margin-bottom:20px;
}

footer ul{
    list-style:none;
}

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

footer a{
    color:#bfc9de;
}

footer a:hover{
    color:#6bd5ff;
}

.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.08);
    padding-top:25px;
    color:#91a1bf;
}

.reveal{
    opacity:0;
    transform:translateY(30px);
    transition:all 0.8s ease;
}

.reveal.active{
    opacity:1;
    transform:translateY(0);
}

@media(max-width:992px){

    .hero-grid,
    .immersive-grid,
    .network-layout,
    .footer-grid{
        grid-template-columns:1fr;
    }

    .hero-content h1{
        font-size:54px;
    }

    .section-heading h2,
    .immersive-grid h2{
        font-size:38px;
    }

    .quote-zone blockquote{
        font-size:28px;
    }

    nav ul{
        gap:16px;
        flex-wrap:wrap;
        justify-content:flex-end;
    }
}

@media(max-width:768px){

    .hero-content h1{
        font-size:42px;
    }

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

    .nav-shell{
        flex-direction:column;
        gap:20px;
    }

}