*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body{
    background:#f2f4f7;
}


.container{
    width:90%;
    max-width:1100px;
    margin:auto;
    display:grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows:auto auto 1fr auto;
    gap:20px;
}


header{
    grid-column:1/3;
    background:#2f4054;
    color:white;
    padding:15px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

nav ul{
    list-style:none;
    display:flex;
    gap:20px;
}

nav a{
    color:white;
    text-decoration:none;
}


.features{
    grid-column:1/3;
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:20px;
}

.feature{
    background:#3498db;
    color:white;
    padding:20px;
    text-align:center;
    border-radius:5px;
}

main{
    background:white;
    padding:20px;
    border-radius:5px;
}


aside{
    background:#e8edf3;
    padding:20px;
    border-radius:5px;
}


footer{
    grid-column:1/3;
    background:#2f4054;
    color:white;
    text-align:center;
    padding:10px;
}