.articles-intro {
  margin-bottom: 1.25em;
}

.articles-list {
  margin-top: 0.5em;
}

.article-card {
  display: block;
  margin-bottom: 1.5em;
  padding: 1.25em 1.35em;
  background: #fff;
  border: 1px solid #c5d9e4;
  border-left: 4px solid #0c6a96;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover,
.article-card:focus {
  text-decoration: none;
  border-left-color: #f7a11a;
  box-shadow: 0 2px 8px rgba(12, 106, 150, 0.12);
  color: inherit;
}

.article-card-title {
  font-size: 22px;
  color: #0c6a96;
  margin: 0 0 0.45em;
  line-height: 1.3;
}

.article-card:hover .article-card-title,
.article-card:focus .article-card-title {
  color: #f7a11a;
}

.article-card-excerpt {
  margin: 0 0 0.75em;
  line-height: 1.5;
}

.article-card-meta {
  font-size: 0.92em;
  color: #555;
  margin: 0;
}

.article-card-meta strong {
  color: #0c6a96;
  font-weight: normal;
}

.article-detail-meta {
  font-size: 1em;
  color: #444;
  margin-bottom: 1em;
}

.article-detail-body h2 {
  margin-top: 1.35em;
}

.article-source-box {
  margin-top: 2em;
  padding: 1.25em 1.35em;
  background: #f4f9fc;
  border: 1px solid #84b1c5;
}

.article-source-box h2 {
  margin-top: 0;
  font-size: 20px;
}

.article-source-box dl {
  margin: 0;
}

.article-source-box dt {
  font-weight: bold;
  color: #0c6a96;
  margin-top: 0.65em;
}

.article-source-box dt:first-child {
  margin-top: 0;
}

.article-source-box dd {
  margin: 0.15em 0 0;
}

.article-back-link {
  display: inline-block;
  margin-bottom: 1em;
  font-weight: bold;
}

.article-not-found {
  padding: 1.5em;
  background: #fff3cd;
  border: 1px solid #f7a11a;
}

.articles-loading,
.articles-error {
  padding: 1em 0;
}

@media (max-width: 767px) {
  .article-card {
    padding: 1em;
  }

  .article-card-title {
    font-size: 20px;
  }
}