body {
    margin: 0;
    background: #0b0f19;
    color: white;
    font-family: Arial, sans-serif;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 18px 8%;
    background: rgba(11, 15, 25, 0.9);
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.logo {
    color: #00d4ff;
    font-weight: bold;
    font-size: 1.2rem;
}

.nav-links a {
    color: #d1d5db;
    text-decoration: none;
    margin-left: 25px;
}

.nav-links a:hover {
    color: #00d4ff;
}

.hero {
    min-height: 75vh;
    padding-top: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;

    background:
        radial-gradient(circle at top, rgba(0, 212, 255, 0.15), transparent 35%),
        #0b0f19;
}

.hero h1 {
    font-size: 4rem;
    color: #00d4ff;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.3rem;
    color: #d1d5db;
}

.btn {
    margin-top: 20px;
    padding: 12px 24px;
    background: #00d4ff;
    color: black;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
}

.btn:hover {
    background: #7c3aed;
    color: white;
}

section {
    padding: 60px 10%;
}

section h2 {
    color: #00d4ff;
    font-size: 2rem;
}

section p {
    color: #d1d5db;
    line-height: 1.7;
}

.cards {
    display: flex;
    gap: 25px;
    margin-top: 30px;
}

.card {
    background: #141b2d;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    flex: 1;
}

.card h3 {
    color: white;
}

.card p {
    color: #d1d5db;
}

.card:hover {
    border-color: #00d4ff;
    transform: translateY(-5px);
    transition: 0.3s;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .cards {
        flex-direction: column;
    }

    nav {
        flex-direction: column;
        align-items: center;
    }

    .nav-links {
        margin-top: 10px;
    }

    .highlight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.highlight {
    background: #141b2d;
    border: 1px solid rgba(0, 212, 255, 0.25);
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    color: #d1d5db;
    font-weight: bold;
}

@media (max-width: 768px) {
    .highlight-grid {
        grid-template-columns: 1fr;
    }
}