*, *::after, *::before {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
}

body {
  margin: 0;
}

header {
  background-color: #5AC4F6;
  padding: 64px 15px;
}

.header__headline {
  color: #FFFFFF;
  font-family: 'Roboto', sans-serif;
  font-size: 64px;
  font-weight: 700;
  margin: 0 0 16px;
  text-align: center;
}

.header__subtitle {
  color: #FFFFFF;
  font-family: 'Roboto', sans-serif;
  font-size: 32px;
  font-weight: 400;
  margin: 0 0 8px;
  text-align: center;
}

.header__paragraph {
  color: #FFFFFF;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  font-weight: 400;
  margin: 0;
  text-align: center;
}

main {
  padding: 64px 0;
}

main > .container {
  max-width: 960px;
}

.main__block {
  position: relative;
}

.main__headline {
  color: #444444;
  font-family: 'Roboto', sans-serif;
  font-size: 28px;
  font-weight: 500;
  margin: 0;
}

.main__subtitle {
  color: #444444;
  font-family: 'Roboto', sans-serif;
  font-size: 20px;
  font-weight: 400;
  margin: 0;
}

.main__paragraph {
  color: #444444;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.375;
  margin: 0;
}

.main__code-wrapper {
  position: relative;
}

.main__code-tabs {
  column-gap: 5px;
  display: inline-flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main__code-tab {
  background-color: #FAFAFA;
  color: #444444;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  font-weight: 500;
  padding: 10px 15px;
  transition: 150ms ease-in-out;
}

.main__code-tab:not(.active):hover {
  cursor: pointer;
  opacity: 0.85;
}

.main__code-tab.active {
  background-color: #5AC4F6;
  color: #FFFFFF;
  cursor: default;
}

.main__code-snippet {
  display: none;
  font-family: 'Roboto Mono', monospace;
  font-size: 16px;
  font-weight: 400;
  margin: 0;
}

.main__code-snippet.active {
  display: block;
}

.main__list {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: 0;
  padding: 0 0 0 15px;
  row-gap: 10px
}

.main__list-item {
  position: relative;
}

footer {
  background-color: #5AC4F6;
  padding: 24px 0;
}

.footer__copyright {
  color: #FFFFFF;
  column-gap: 4px;
  display: flex;
  font-family: 'Roboto', sans-serif;
  font-size: 18px;
  font-weight: 400;
  justify-content: center;
  text-align: center;
}

.footer__author {
  color: #FFFFFF;
  transition: 150ms ease-in-out;
}

.footer__author:hover {
  opacity: 0.85;
}

.repository-link {
  color: #FFFFFF;
  position: absolute;
  right: -90px;
  top: 10px;
  transition: 150ms ease-in-out;
}

.repository-link:hover {
  opacity: 0.85;
}

.repository-link__wrapper {
  border-color: transparent #5AC4F6 transparent transparent;
  border-style: solid;
  border-width: 0 100px 100px 0;
  height: 0;
  position: fixed;
  right: 0;
  top: 0;
  width: 0;
}

@media (max-width: 575.98px) {
  .header__headline {
    font-size: 36px;
  }

  .header__subtitle {
    font-size: 20px;
  }
}