@import url("/assets/tokens.css");

/* FAST-VID Journal article pages. */
.article-page .shell {
  width: min(1160px, calc(100% - 2rem));
}

.article-page .breadcrumbs {
  margin-block-end: 1.4rem;
}

.article-page .page-header {
  max-width: 900px;
  padding-block-end: clamp(1.25rem, 3vw, 2.25rem);
}

.article-page .page-header .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.article-page .page-header .eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: currentColor;
}

.article-page .page-header h1 {
  max-width: 19ch;
  margin: 0;
  font-size: clamp(2.35rem, 5.6vw, 4.5rem);
  font-weight: 850;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.article-page .page-header .lead {
  max-width: 58rem;
  margin-block-start: 1rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  line-height: 1.7;
}

.article-page .article-meta {
  gap: 0.55rem 1rem;
  margin-block-start: 1.15rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.article-reading-time {
  color: var(--brand);
  font-weight: 700;
}

.article-layout {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "toc"
    "body";
  gap: 1rem;
  margin-block-start: 1.7rem;
}

.article-body {
  grid-area: body;
  padding: clamp(1.25rem, 3.5vw, 2.8rem);
  border-color: var(--line);
  box-shadow: var(--shadow-md);
}

.article-body > p,
.article-body > ul,
.article-body > ol {
  max-width: 72ch;
}

.article-body > p {
  margin-block-start: 1rem;
  color: var(--color-text-muted);
  font-size: 1.01rem;
  line-height: 1.82;
}

.article-body h2 {
  margin: 2.15rem 0 0.75rem;
  padding-block-start: 1.45rem;
  border-block-start: 1px solid var(--line);
  color: var(--ink);
  font-size: clamp(1.4rem, 2.3vw, 1.72rem);
  letter-spacing: -0.035em;
  line-height: 1.18;
  scroll-margin-block-start: 6rem;
}

.article-body h2:first-of-type {
  margin-block-start: 2rem;
  padding-block-start: 0;
  border-block-start: 0;
}

.article-body h3 {
  margin: 1.45rem 0 0.45rem;
  color: var(--ink);
  font-size: 1.08rem;
  letter-spacing: -0.015em;
  line-height: 1.35;
  scroll-margin-block-start: 6rem;
}

.article-body p,
.article-body li {
  color: var(--color-text-muted);
}

.article-body a {
  color: var(--brand);
  font-weight: 600;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.article-body a:hover {
  color: var(--brand-strong);
}

.article-body ul,
.article-body ol {
  margin-block-start: 0.9rem;
  padding-inline-start: 1.4rem;
}

.article-body li {
  line-height: 1.72;
}

.article-body li + li {
  margin-block-start: 0.45rem;
}

.article-body strong {
  color: var(--ink);
}

.article-body code {
  border: 1px solid var(--line);
  background: var(--color-ice);
  font-size: 0.84em;
}

.article-body .table-wrap {
  border-color: var(--line);
  background: var(--surface);
}

.article-body table {
  font-size: 0.82rem;
}

.article-body th {
  background: var(--color-ice);
}

.article-body tbody tr:nth-child(even) {
  background: var(--color-surface-soft);
}

.article-body blockquote,
.article-body .callout {
  margin: 1.35rem 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-inline-start: 4px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: var(--color-ice);
  color: var(--muted);
}

.article-body blockquote p,
.article-body .callout p {
  margin: 0;
  color: var(--muted);
}

.article-body .related-grid {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.7rem;
  margin-block-start: 1.1rem;
}

.article-body .related-card {
  border-color: var(--line);
  background: var(--surface);
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.article-body .related-card:hover {
  border-color: var(--brand);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.article-body .sources {
  font-size: 0.82rem;
}

.article-body .sources li + li {
  margin-block-start: 0.5rem;
}

.article-body a.button,
.article-body a.button:hover {
  color: #fff;
}

.article-body .button {
  min-height: 44px;
  border-radius: 999px;
  font-size: 0.82rem;
}

.article-toc {
  grid-area: toc;
  align-self: start;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.article-toc summary {
  cursor: pointer;
  color: var(--brand);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  list-style: none;
  text-transform: uppercase;
}

.article-toc summary::-webkit-details-marker {
  display: none;
}

.article-toc summary::after {
  content: "+";
  float: inline-end;
  font-size: 1rem;
  font-weight: 500;
  line-height: 0.8;
}

.article-toc[open] summary::after {
  content: "−";
}

.article-toc nav {
  margin-block-start: 0.7rem;
}

.article-toc ol {
  margin: 0;
  padding-inline-start: 1.1rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.article-toc li + li {
  margin-block-start: 0.4rem;
}

.article-toc a {
  color: var(--muted);
  text-decoration: none;
}

.article-toc a:hover {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.article-side {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  margin-block-start: 1.1rem;
}

.sidebar-download {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-navy);
  color: #fff;
}

.sidebar-download .eyebrow {
  margin: 0 0 0.55rem;
  color: var(--brand-soft);
  font-size: 0.6rem;
}

.sidebar-download h2 {
  margin: 0;
  color: #fff;
  font-size: 1.15rem;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.sidebar-download p {
  margin: 0.55rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.8rem;
  line-height: 1.55;
}

.sidebar-download .button {
  margin-block-start: 0.9rem;
  background: var(--brand-soft);
  border-color: var(--brand-soft);
  color: var(--brand);
  font-size: 0.78rem;
}

.sidebar-download .button:hover {
  background: #fff;
  border-color: #fff;
  color: var(--brand);
}

.sidebar-related {
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.sidebar-related .eyebrow {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.6rem;
}

.sidebar-related ul {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidebar-related a {
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.4;
  text-decoration: none;
}

.sidebar-related a:hover {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.article-pagination {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin-block-start: 1.4rem;
}

.article-pager {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.32rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.article-pager:hover {
  border-color: var(--brand);
  color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.article-pager.next {
  text-align: end;
}

.pager-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pager-title {
  color: var(--brand);
  font-size: 0.88rem;
  font-weight: 750;
  line-height: 1.35;
}

@media (min-width: 680px) {
  .article-pagination {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .article-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-block-start: 0.35rem;
  }

  .article-pagination {
    margin-block-start: 1rem;
  }
}

@media (min-width: 901px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 288px;
    grid-template-areas:
      "body toc";
    column-gap: 1.5rem;
    row-gap: 1rem;
  }

  .article-toc {
    position: sticky;
    inset-block-start: 6rem;
    max-height: calc(100vh - 8rem);
    overflow: auto;
  }

  .article-side {
    grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  }
}

@media (max-width: 640px) {
  .article-page .shell {
    width: min(100% - 1.5rem, 1180px);
  }

  .article-page .page-header h1 {
    font-size: clamp(2.18rem, 10vw, 3rem);
  }

  .article-page .page-header .lead {
    font-size: 0.96rem;
  }

  .article-layout {
    gap: 0.8rem;
  }

  .article-body {
    padding: 1.05rem;
    border-radius: 18px;
  }

  .article-side {
    grid-template-columns: 1fr;
  }

  .article-pagination {
    gap: 0.55rem;
  }

  .article-pager.next {
    text-align: start;
  }
}
.article-pagination.has-one {
  grid-template-columns: 1fr;
}

.article-pagination.has-one .article-pager.next {
  text-align: start;
}