body {
    font-family: Arial;
    margin: 0;
    background: #0f2027;
    color: white;
}

nav {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background: #111;
}

nav a {
    color: white;
    margin-left: 15px;
}

.hero {
    text-align: center;
    padding: 100px;
}

.btn {
    padding: 10px 20px;
    background: cyan;
    color: black;
}

.section {
    padding: 50px;
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(200px,1fr));
    gap: 20px;
}

.card {
    background: #1c2b36;
    padding: 20px;
}

img {
    width: 100%;
    border-radius: 10px;
}