body {
    margin:0;
    font-family:Arial;
    background:#0f172a;
    color:white;
}

.container {
    max-width:1100px;
    margin:auto;
    padding:20px;
}

header {
    background:#020617;
    position:sticky;
    top:0;
}

.nav {
    display:flex;
    justify-content:space-between;
    align-items:center;
}

nav a {
    color:white;
    margin-left:15px;
    text-decoration:none;
}

.hero {
    text-align:center;
    padding:100px 20px;
    background:linear-gradient(#020617, #0f172a);
}

.section {
    padding:60px 20px;
}

.btn {
    display:inline-block;
    margin:10px;
    padding:10px 15px;
    background:#22c55e;
    color:black;
    border-radius:8px;
    text-decoration:none;
}

.grid {
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:15px;
}

.grid img {
    width:100%;
    border-radius:10px;
    transition:0.3s;
}

.grid img:hover {
    transform:scale(1.05);
}