/*
 * BLUEBERRY GROUP - Blog article page
 * Single article reading experience.
 */

/* 1. Page foundation */

.blog-article-page {
  background: var(--blueberry-white);
  color: var(--blueberry-ink);
}

.blog-article-page .shell {
  width: min(var(--blueberry-container), calc(100% - 48px));
  margin-inline: auto;
}

/* 2. Article hero */

.article-hero {
  overflow: hidden;
  position: relative;
  background: linear-gradient(90deg, rgba(var(--blueberry-deep-rgb), 0.88), rgba(var(--blueberry-deep-rgb), 0.54)), var(--article-hero-image) center / cover no-repeat;
  color: var(--blueberry-white);
}

.article-hero-inner { position: relative; }

.article-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--blueberry-on-dark);
  font-size: var(--blueberry-text-meta);
  line-height: 1.5;
}

.article-kicker a {
  color: inherit;
  text-decoration: none;
}

.article-label {
  display: inline-flex;
  width: max-content;
  margin: 0 0 8px;
  padding: 8px 10px;
  border-radius: 4px;
  background: rgba(var(--blueberry-aqua-rgb), 0.16);
  color: var(--blueberry-white);
  font-size: var(--blueberry-text-label);
  line-height: 1;
}

.article-hero h1 {
  max-width: min(100%, 900px);
  margin: 0;
  color: var(--blueberry-white);
  font-size: var(--blueberry-display-md);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.article-hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding-inline: 12px;
  border: 1px solid rgba(var(--blueberry-white-rgb), 0.24);
  border-radius: 999px;
  color: var(--blueberry-on-dark);
  font-size: var(--blueberry-text-label);
  line-height: 1;
}

/* 3. Cover image */


/* 4. Article content */

.article-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 760px);
  gap: 90px;
  align-items: start;
  padding-block: 82px 108px;
}

.article-aside {
  --article-aside-card-padding: 28px;
  --article-aside-row-padding: 16px;
  --article-aside-label-gap: 6px;
  position: sticky;
  top: 24px;
  padding: var(--article-aside-card-padding);
  border: 1px solid var(--blueberry-line);
  border-radius: var(--blueberry-radius-medium);
  background: var(--blueberry-paper);
}

.aside-label {
  margin: 0;
  color: var(--blueberry-aqua);
  font-size: var(--blueberry-text-label);
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-aside-current-title {
  margin: var(--article-aside-label-gap) 0 var(--article-aside-row-padding);
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-meta);
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.article-aside h2 {
  margin: 0 0 28px;
  color: var(--blueberry-deep);
  font-size: var(--blueberry-heading-sm);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.article-aside dl {
  display: grid;
  gap: 0;
  margin: 0;
}

.article-aside div {
  padding-block: var(--article-aside-row-padding);
  border-top: 1px solid var(--blueberry-line);
}

.article-aside dl > div:last-child {
  padding-bottom: 0;
}

.article-aside dt {
  margin-bottom: var(--article-aside-label-gap);
  color: var(--blueberry-aqua);
  font-size: var(--blueberry-text-label);
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-aside dd {
  margin: 0;
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-meta);
  line-height: 1.55;
}

.article-content {
  max-width: 760px;
}

.article-lede {
  margin: 0 0 56px;
  color: var(--blueberry-deep);
  font-size: var(--blueberry-heading-lg);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.045em;
}

.article-content section + section {
  margin-top: 54px;
}

.article-content h2 {
  margin: 0 0 18px;
  color: var(--blueberry-ink);
  font-size: var(--blueberry-display-sm);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.article-content p {
  margin: 0 0 18px;
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-lead);
  line-height: 1.85;
}

.article-content ul {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.article-content li {
  position: relative;
  padding-left: 24px;
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-body);
  line-height: 1.65;
}

.article-content li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blueberry-aqua);
  content: "";
}

.article-content blockquote {
  margin: 58px 0;
  padding: 34px 38px;
  border-left: 4px solid var(--blueberry-aqua);
  background: var(--blueberry-paper);
}

.article-content blockquote p {
  margin: 0;
  color: var(--blueberry-deep);
  font-size: var(--blueberry-heading-lg);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.05em;
}

.article-inline-image {
  margin: 58px 0;
}

.article-inline-image img {
  width: 100%;
  height: 430px;
  object-fit: cover;
}

.article-inline-image figcaption {
  margin-top: 12px;
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-meta);
  line-height: 1.55;
}

/* 5. Related articles */

.related-articles {
  padding-block: 0 0;
}

.related-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr) auto;
  align-items: end;
  gap: 42px;
  margin-bottom: 34px;
  border-top: 1px solid var(--blueberry-line);
  padding-top: 54px;
}

.related-head .article-label {
  margin: 0;
  color: var(--blueberry-navy);
}

.related-head h2 {
  max-width: 620px;
  margin: 18px 0 0;
  color: var(--blueberry-ink);
  font-size: var(--blueberry-section-title);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.06em;
}

.related-head > p {
  max-width: 340px;
  margin: 0;
  color: var(--blueberry-muted);
  font-size: var(--blueberry-text-body);
  line-height: 1.7;
}

.related-head > a {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding-inline: 16px;
  border: 1px solid var(--blueberry-line);
  color: var(--blueberry-deep);
  font-size: var(--blueberry-text-meta);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.related-head > a:hover,
.related-head > a:focus-visible {
  border-color: var(--blueberry-aqua);
  background: var(--blueberry-aqua);
  color: var(--blueberry-deep);
  outline: none;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  display: grid;
  color: inherit;
  text-decoration: none;
}

.related-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.45s ease, filter 0.45s ease;
}

.related-card small {
  margin-top: 18px;
  color: var(--blueberry-aqua);
  font-size: var(--blueberry-text-label);
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-card h3 {
  margin: 10px 0 0;
  color: var(--blueberry-deep);
  font-size: var(--blueberry-heading-sm);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.related-card:hover img,
.related-card:focus-visible img {
  filter: saturate(1.05) contrast(1.04);
  transform: scale(0.985);
}

.related-card:focus-visible {
  outline: 2px solid var(--blueberry-aqua);
  outline-offset: 8px;
}

/* 6. Responsive */

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .article-aside {
    position: static;
    border: 1px solid var(--blueberry-line);
  }

  .related-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .blog-article-page .shell {
    width: calc(100% - 40px);
  }

  .article-hero h1 {
    font-size: var(--blueberry-display-sm);
  }

  .article-cover {
    margin-top: 46px;
  }

  .article-cover img {
    height: 310px;
  }

  .article-layout {
    padding-block: 58px 82px;
  }

  .article-lede {
    margin-bottom: 44px;
  }

  .article-content p {
    font-size: var(--blueberry-text-body);
  }

  .article-content blockquote {
    padding: 28px 24px;
  }

  .article-inline-image img {
    height: 300px;
  }

  .related-articles {
    padding-bottom: 0;
  }

  .related-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 20px;
  }

  .related-head h2 {
    margin-top: 18px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-article-page * {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
  }
}