html {
  font-family: "Source Sans Pro", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

body {
  margin: 0;
  color: #515151;
  background-color: #ffffff;
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: .5rem;
  font-weight: 700;
  line-height: 1.25;
  color: #313131;
  text-rendering: optimizeLegibility;
}

.container {
  max-width: 38rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  margin-left: auto;
  margin-right: auto;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 3rem;
  padding-bottom: 2rem;
  margin-bottom: 0;
}

.header__title {
  margin-top: 0;
  margin-bottom: 0;
  color: #505050;
  font-size: 1.25rem;
}

.header__link {
  color: #505050;
  text-decoration: none;
}

.header__small {
  font-size: 75%;
  font-weight: 400;
  color: #c0c0c0;
  letter-spacing: 0;
}

.social {
  display: flex;
  list-style: none;
  margin-top: 0;
  margin-bottom: 0;
  padding-left: 0;
  align-items: center;
}

.social__item {
  display: inline-flex;
  margin-left: 0.6rem;
}

.social__link {
  display: inline-flex;
  color: #505050;
  text-decoration: none;
}

.social__link:hover,
.social__link:focus {
  opacity: 0.8;
}

.post {
  margin-bottom: 4em;
}

.post__title {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: #303030;
  font-size: 2rem;
}

.post__date {
  display: block;
  margin-top: -0.5rem;
  margin-bottom: 1rem;
  color: #9a9a9a;
}

.post__content {
  margin-top: 0;
  margin-bottom: 1rem;
}

.post__links {
  display: flex;
  margin-top: 1.8rem;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.post__link {
  text-decoration: none;
  color: #9a9a9a;
  font-size: 0.8rem;
}

.post__link:hover,
.post__link:focus {
  color: #268bd2;
}

.post__link svg {
  margin-bottom: -0.1rem;
  margin-right: 0.3rem;
  fill: #303030;
}

.post__link:not(:last-child) {
  margin-right: 1.8rem;
}

.post__image img {
  max-width: 100%;
  display: block;
  height: auto;
  border-radius: 5px;
}

/* media-queries */
@media (min-width: 38em) {
  html {
    font-size: 18px;
  }
}

@media (max-width: 425px) {
  .header__small {
    display: block;
    margin-top: 0.5rem;
  }
}