@font-face {
  font-family: 'Inter';
  src: url(https://pictures.s3.yandex.net/frontend-developer/responsive/Inter-Regular.woff);
  font-weight: normal;
}
@font-face {
  font-family: 'Inter';
  src: url(https://pictures.s3.yandex.net/frontend-developer/responsive/Inter-Bold.woff2);
  font-weight: bold;
}
/* это не совсем по БЭМ, но в учебном проекте допустимо.
В реальных условиях пишите margin: 0; внутри блоков */
h1, h2, h3, h4, h5, h6, p, li {
  margin: 0;
}
body {
  background-color: #000000;
}
.page {
  max-width: 1440px;
  margin: auto;
  font-family: 'Inter';
}
.header {
  background-color: #000000;
}
.header__container {
  width: 90%;
  margin: auto;
  display: flex;
  align-items: center;
  height: 60px;
}
.header__title {
  color: #ffffff;
  font-size: 18px;
  font-weight: bold;
}
.cover {
  min-height: calc(60vh - 60px);
  background-image: url(https://pictures.s3.yandex.net/frontend-developer/responsive/cover.png);
  background-size: cover;
  background-position: center;
  color: #ffffff;
  box-sizing: border-box;
  padding: 161px 0 98px;
}
.cover__container {
  width: 90%;
  margin: auto;
}
.cover__title {
  font-size: 96px;
  line-height: 96px;
  max-width: 849px;
}
.cover__subtitle {
  font-size: 16px;
  max-width: 610px;
  margin-top: 50px;
  line-height: 24px;
}
.content {
  padding: 60px 0;
  background-color: #fff;
}
.content__columns {
  display: flex;
  justify-content: space-between;
  width: 90%;
  margin: auto;
  flex-wrap: wrap;
}
.content__column {
  width: calc((100% - 70px)/3);
}
.content__column-image {
  width: 350px;
  height: 350px;
  background-size: cover;
  background-position: center;
}
.content__column-image_hero_laika {
  background-image: url(https://pictures.s3.yandex.net/frontend-developer/responsive/laika.png);
}
.content__column-image_hero_lunohod {
  background-image: url(https://pictures.s3.yandex.net/frontend-developer/responsive/lunohod.jpg);
}
.content__column-image_hero_tesla {
  background-image: url(https://pictures.s3.yandex.net/frontend-developer/responsive/tesla.png);
}
.content__column-title {
  font-size: 30px;
  margin: 37px 0 34px;
}
.column__text {
  margin: 24px 0;
  font-size: 14px;
  line-height: 21px;
}
.column__quote {
  font-size: 18px;
  line-height: 27px;
  margin-left: 0;
}
.column__quote-cite {
  font-size: 12px;
  line-height: 18px;
}
.share {
  display: flex;
  align-items: center;
  margin-top: 34px;
}
.share__text {
  font-weight: bold;
  font-size: 18px;
  line-height: 27px;
  margin-right: 14px;
}
.share__icon {
  text-decoration: none;
  display: block;
  margin-right: 6px;
}
.share__icon:last-of-type {
  margin-right: 0;
}
.share__icon:hover {
  opacity: .8;
}
.footer {
  height: 60px;
  background-color: #fff;
}
.footer__copyright {
  width: 90%;
  margin: auto;
  font-size: 12px;
  line-height: 18px;
}