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

body {
    font-family: Arial, sans-serif;
    background: #05070d;
    color: white;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 8%;
    background: rgba(5, 7, 13, 0.95);
    border-bottom: 1px solid rgba(0, 174, 255, 0.2);
    position: sticky;
    top: 0;
}

.logo {
    font-size: 28px;
    font-weight: 800;
}

.logo span {
    color: #00aeff;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 24px;
    transition: 0.3s;
}

nav a:hover {
    color: #00aeff;
}

.hero {
    padding: 100px 8%;
    text-align: center;
    background:
        radial-gradient(circle at top, rgba(0, 174, 255, 0.2), transparent 40%);
}

.tag {
    color: #00aeff;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-size: 14px;
}

.hero h1 {
    font-size: 58px;
    margin-bottom: 20px;
}

.hero p {
    max-width: 800px;
    margin: auto;
    color: #b8c7d9;
    font-size: 18px;
}

.services {
    padding: 80px 8%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.card {
    background: #0b1320;
    padding: 30px;
    border-radius: 16px;
    border: 1px solid rgba(0, 174, 255, 0.15);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    border-color: #00aeff;
    box-shadow: 0 0 30px rgba(0, 174, 255, 0.15);
}

.card h2 {
    margin-bottom: 16px;
    font-size: 22px;
}

.card p {
    color: #b8c7d9;
    line-height: 1.6;
}

.cta {
    padding: 100px 8%;
    text-align: center;
}

.cta h2 {
    font-size: 42px;
    margin-bottom: 30px;
}

.cta a {
    display: inline-block;
    padding: 16px 30px;
    background: #00aeff;
    color: #03111d;
    text-decoration: none;
    font-weight: bold;
    border-radius: 10px;
}

.cta a:hover {
    background: #38c0ff;
}

@media (max-width: 1100px) {
    .services {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .services {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 36px;
    }

    header {
        flex-direction: column;
        gap: 20px;
    }
}