body {
    font-family: Arial, sans-serif;
    margin: 0;
    background:#0f172a;
    color:#e5e7eb;
}

header {
    background:#020617;
    padding:20px 60px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

header a {
    color:#e5e7eb;
    text-decoration:none;
    margin-left:20px;
}

header a:hover {color:#38bdf8;}

.hero {
    padding:120px 60px;
    text-align:center;
}

.hero h1 {
    font-size:48px;
}

.hero span {color:#38bdf8;}

.section {
    padding:80px 60px;
    background:#020617;
}

.grid {
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:30px;
}

.card {
    background:#0f172a;
    padding:30px;
    border-radius:12px;
    border:1px solid #1e293b;
}

.card h3 {color:#38bdf8;}

.btn {
    display:inline-block;
    margin-top:20px;
    background:#38bdf8;
    color:#020617;
    padding:12px 22px;
    border-radius:6px;
    text-decoration:none;
    font-weight:bold;
}

footer {
    padding:30px;
    text-align:center;
    background:#020617;
    font-size:14px;
}