:root {
    --primary: #00f2fe;
    --secondary: #4facfe;
    --accent: #ff0080;
    --bg: #03080f;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text: #ffffff;
    --text-dim: #94a3b8;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}

.glass-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 10%, rgba(79, 172, 254, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(0, 242, 254, 0.1) 0%, transparent 40%);
    z-index: -1;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo span {
    color: var(--primary);
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    margin-left: 2.5rem;
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.3s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    padding: 0.7rem 1.8rem;
    border-radius: 50px;
    color: #000;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 10px 20px rgba(0, 242, 254, 0.2);
    transition: 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 242, 254, 0.4);
}

header.hero {
    padding: 12rem 10% 8rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 4rem;
}

.badge {
    background: rgba(0, 242, 254, 0.05);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--primary);
    border: 1px solid rgba(0, 242, 254, 0.2);
    display: inline-block;
    margin-bottom: 2rem;
    font-weight: 600;
}

h1 {
    font-size: 4.8rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.gradient-text {
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    font-size: 1.25rem;
    color: var(--text-dim);
    max-width: 580px;
    margin-bottom: 3rem;
    font-weight: 300;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

.btn-glow {
    background: var(--primary);
    color: #000;
    padding: 1.1rem 2.2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 800;
    box-shadow: 0 10px 40px rgba(0, 242, 254, 0.3);
    transition: 0.3s;
}

.btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 60px rgba(0, 242, 254, 0.5);
}

.btn-outline {
    border: 1px solid var(--glass-border);
    padding: 1.1rem 2.2rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    background: var(--glass);
    transition: 0.3s;
}

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

.image-wrapper {
    position: relative;
    padding: 20px;
}

.image-wrapper img {
    width: 100%;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.6);
    animation: floating 6s ease-in-out infinite;
    backdrop-filter: blur(5px);
}

.glow-sphere {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, transparent 70%);
    z-index: -1;
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-25px) rotate(1deg);
    }
}

.features {
    padding: 10rem 10%;
    text-align: center;
}

.features h2 {
    font-size: 3.2rem;
    margin-bottom: 5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.feature-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
    padding: 4rem 2.5rem;
    border-radius: 32px;
    border: 1px solid var(--glass-border);
    transition: 0.4s;
}

.feature-card:hover {
    transform: translateY(-15px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.icon {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    display: block;
}

.feature-card h3 {
    margin-bottom: 1.2rem;
    font-size: 1.6rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-dim);
    font-size: 1.05rem;
}

.tech-section {
    padding: 8rem 10%;
}

.tech-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 5rem;
    border-radius: 48px;
    align-items: center;
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(30px);
    gap: 4rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.tag {
    background: var(--glass);
    padding: 0.4rem 1.2rem;
    border-radius: 10px;
    font-size: 0.85rem;
    border: 1px solid var(--glass-border);
    font-weight: 600;
}

.tech-visual {
    display: flex;
    justify-content: center;
}

.node-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.node {
    background: var(--bg);
    padding: 1.2rem 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    font-weight: 700;
    font-size: 0.9rem;
    width: 220px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.node.highlight {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 242, 254, 0.05);
}

.line {
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, var(--primary), transparent);
}

.node-row {
    display: flex;
    gap: 1.5rem;
}

footer {
    padding: 6rem 10%;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
}

footer p {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.authors {
    color: var(--text-dim);
    font-size: 0.9rem;
}

@media (max-width: 1100px) {
    h1 {
        font-size: 3.5rem;
    }

    header.hero,
    .tech-card {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 8rem 5% 4rem;
    }

    header p {
        margin: 0 auto 3rem;
    }

    .hero-btns {
        justify-content: center;
    }

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

    .tech-card {
        padding: 3rem;
    }
}