body{
    margin:0;
    background:#f2f2f2;
    font-family:Arial;
}

.topbar{
    background:#fff;
    padding:15px 20px;
    box-shadow:0 2px 10px rgba(0,0,0,.05);
    position:sticky;
    top:0;
    z-index:999;
}

.logo{
    font-size:24px;
    font-weight:bold;
    color:#1877f2;
}

.container{
    max-width:1000px;
    margin:auto;
    padding:20px;
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:20px;
}

.card{
    background:#fff;
    border-radius:15px;
    overflow:hidden;
    box-shadow:0 5px 20px rgba(0,0,0,.08);
    transition:.3s;
}

.card:hover{
    transform:translateY(-5px);
}

.card img{
    width:100%;
    height:220px;
    object-fit:cover;
}

.card-content{
    padding:20px;
}

.card-title{
    font-size:20px;
    font-weight:bold;
    margin-bottom:10px;
    color:#111;
}

.btn{
    display:inline-block;
    padding:12px 25px;
    background:#1877f2;
    color:#fff;
    border-radius:30px;
    text-decoration:none;
    font-weight:bold;
}

.footer{
    margin-top:50px;
    background:#111;
    padding:30px;
    text-align:center;
}

.footer a{
    color:#fff;
    margin:0 10px;
    text-decoration:none;
}