body {
    font-family: system-ui, 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS',
        sans-serif;
}

.container {
    display: inline-block;
    width: 1000px;
    margin: 0 calc(50% - 500px) 60px;
}
.container:nth-last-child(2) {
    margin-bottom: 0;
}

/* header style */
.logo {
    float: left;
}

.main-nav {
    float: right;
}

.main-nav .link {
    color: #333;
    text-decoration: none;
    font-size: 20px;
    margin-left: 50px;
}
.main-nav .link:first-child {
    margin: 0;
}
.main-nav .link:hover {
    text-decoration: underline;
    color: #649;
    cursor: pointer;
}

/* main style */
.left-column {
    width: 40%;
    float: left;
    margin-top: 50px;
}

.main-title {
    margin: 0;
    font-size: 60px;
}
.main-title > span {
    display: block;
    font-weight: 100;
}
.main-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    margin-top: 10px;
    background-color: #649;
}

.description {
    font-size: 20px;
}

.btn {
}

.right-column {
    width: 55%;
    float: right;
}

/* footer style */
.socials {
    float: left;
    font-size: 30px;
}

.socials a {
    color: #777;
    text-decoration: none;
}
.socials a:hover {
    color: #649;
}

.copyright {
    float: right;
    margin: 0;
}