body {
    background: #E5E5E5;
}

.container {
    margin: 0 auto;
    width: 1400px;
}

.nav-link {
    text-decoration: none;
    color: #000;
    margin-left: 10px;
}

.header {
    display: flex;
    justify-content: space-between;
    height: 24px;
    align-items: center;
}

.nav {
    display: flex;
    justify-content: space-between;
    width: 500px;
}

.main {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    grid-template-rows: 1fr 1fr repeat(3, 2fr) 2fr;
    grid-gap: 40px;
    margin-top: 90px;
}

.square {
    grid-column: 2 / 4;
    grid-row: 1 / 4;
}

.big-width {
    grid-column: 1 / 4;
    grid-row: 7 / 8;
}

.footer {
    margin-top: 90px;
    display: flex;
    justify-content: space-between;
}