/* ============================================================================
   Article surface
   ----------------------------------------------------------------------------
   Layered on top of the built stylesheet. It reuses the site tokens so every
   region theme keeps its palette, and it only adds the reading layout, cards,
   table of contents and policy pages.
   ========================================================================== */

.article-main {
  background: var(--paper);
}

.article-topbar {
  padding-top: 1.6rem;
}

.article-topbar .breadcrumbs {
  margin: 0;
  font-size: 0.78rem;
}

.article-hero {
  max-width: 60rem;
  padding-top: 1.4rem;
  padding-bottom: 1.6rem;
}

.article-hero .eyebrow {
  margin-bottom: 0.9rem;
}

.article-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.4vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: balance;
}

.article-lede {
  margin: 1.1rem 0 0;
  max-width: 46rem;
  font-size: clamp(1.02rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: var(--ink-soft);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.35rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.article-meta__author {
  color: var(--ink-soft);
  font-weight: 600;
}

.article-meta__dot {
  opacity: 0.55;
}

.article-cover {
  margin: 0 auto 2.4rem;
  max-width: var(--container);
}

.article-cover img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  background: var(--surface-2);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 4rem);
  align-items: start;
  padding-bottom: 4.5rem;
}

.article-aside {
  position: sticky;
  top: calc(var(--header-h) + 1.3rem);
  display: grid;
  gap: 1.1rem;
  font-size: 0.82rem;
}

.article-toc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem 1.15rem;
  box-shadow: var(--shadow-sm);
}

.article-toc__title {
  margin: 0 0 0.65rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.article-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.42rem;
  counter-reset: toc;
}

.article-toc li {
  counter-increment: toc;
  line-height: 1.35;
}

.article-toc li::before {
  content: counter(toc, decimal-leading-zero);
  display: inline-block;
  min-width: 1.5rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-size: 0.68rem;
}

.article-toc a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.article-toc a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.aside-card {
  border-radius: var(--radius);
  padding: 1.15rem;
  background:
    linear-gradient(160deg, var(--accent-soft), var(--surface));
  border: 1px solid var(--line);
}

.aside-card__kicker {
  margin: 0 0 0.35rem;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.aside-card__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.25;
  color: var(--ink);
}

.aside-card__body {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.article-body {
  max-width: 50rem;
  min-width: 0;
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-prose {
  max-width: none;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.article-prose > p {
  margin: 0 0 1.15rem;
}

.article-prose h2 {
  margin: 2.4rem 0 0.8rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  line-height: 1.25;
  color: var(--ink);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.article-prose h3 {
  margin: 1.7rem 0 0.55rem;
  font-size: 1.12rem;
  line-height: 1.35;
  color: var(--ink);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.article-prose ul,
.article-prose ol {
  margin: 0 0 1.15rem;
  padding-inline-start: 1.3rem;
}

.article-prose li {
  margin-bottom: 0.45rem;
}

.article-prose li::marker {
  color: var(--accent);
}

.article-prose a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  text-underline-offset: 0.18em;
}

.article-prose a:hover {
  text-decoration-color: var(--accent);
}

.article-prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border-inline-start: 3px solid var(--gold);
  background: var(--surface-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
}

.article-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: 0.9rem;
}

.article-prose th,
.article-prose td {
  border-bottom: 1px solid var(--line);
  padding: 0.55rem 0.6rem;
  text-align: start;
}

.article-prose th {
  background: var(--surface-2);
  font-weight: 600;
}

.key-points {
  margin: 0 0 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 1.35rem 1.35rem 1rem;
  box-shadow: var(--shadow-sm);
}

.key-points ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.key-points li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  align-items: start;
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.5;
}

.key-points__num {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.key-points img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.cta-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  margin: 2.6rem 0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
    var(--surface-2);
  border: 1px solid var(--line-strong);
}

.cta-panel__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ink);
}

.cta-panel__body {
  margin: 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.cta-panel .button {
  flex: 0 0 auto;
}

.article-faq,
.article-sources,
.article-related {
  margin-top: 3rem;
}

.article-faq > h2,
.article-sources > h2,
.article-related > h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  margin: 0 0 1rem;
  color: var(--ink);
}

.faq-list {
  display: grid;
  gap: 0.6rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.95rem 1.1rem;
}

.faq-list details[open] {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.faq-list summary {
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
}

.faq-list summary::after {
  content: "+";
  color: var(--accent);
  font-weight: 400;
  font-size: 1.1rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "–";
}

.faq-list p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.article-sources ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.article-sources li {
  border-inline-start: 2px solid var(--gold);
  padding-inline-start: 0.8rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.article-sources a {
  color: var(--accent-strong);
}

.article-sources span {
  opacity: 0.75;
}

.article-related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.9rem;
}

.mini-card {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.mini-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.mini-card__category {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.mini-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.3;
  color: var(--ink);
}

.mini-card__excerpt {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}

.article-disclaimer {
  margin: 2.8rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--muted);
}

.article-backlink {
  margin: 1.2rem 0 0;
  font-size: 0.82rem;
}

.article-backlink a {
  color: var(--accent-strong);
}

/* ------------------------------------------------------------------- index */

.article-index-hero {
  padding-top: 2.2rem;
  padding-bottom: 1.8rem;
  max-width: 60rem;
}

.article-index-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.article-index-hero__intro {
  margin: 0.9rem 0 0;
  max-width: 44rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

.article-index-hero__meta {
  margin: 1rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.article-index {
  padding-bottom: 4.5rem;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1.4rem;
}

.article-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}

.article-card__media {
  display: block;
  aspect-ratio: 1200 / 630;
  background: var(--surface-2);
  overflow: hidden;
}

.article-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.article-card:hover .article-card__media img {
  transform: scale(1.03);
}

.article-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.15rem 1.2rem 1.25rem;
}

.article-card__category {
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.article-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

.article-card__title a {
  color: var(--ink);
  text-decoration: none;
}

.article-card__title a:hover {
  color: var(--accent-strong);
}

.article-card__excerpt {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.article-card__meta {
  margin: 0.2rem 0 0;
  display: flex;
  gap: 0.4rem;
  color: var(--muted-2);
  font-size: 0.72rem;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.84rem;
}

.pagination__link {
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 600;
}

.pagination__link:hover {
  text-decoration: underline;
}

.pagination__status {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.article-empty {
  padding: 3rem 0;
  color: var(--muted);
}

/* ------------------------------------------------------------ home teasers */

.home-articles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.home-articles--empty {
  display: none;
}

.home-article {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.home-article:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.home-article__media {
  display: block;
  aspect-ratio: 1200 / 630;
  background: var(--surface-2);
  overflow: hidden;
}

.home-article__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.home-article__body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.85rem 0.95rem 1rem;
}

.home-article__category {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.home-article__title {
  font-family: var(--font-display);
  font-size: 0.98rem;
  line-height: 1.3;
  color: var(--ink);
}

.home-article__meta {
  font-size: 0.68rem;
  color: var(--muted-2);
}

@media (max-width: 1024px) {
  .home-articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .home-articles {
    grid-template-columns: 1fr;
  }
}

/* ------------------------------------------------------------------ policy */

.policy-hero {
  max-width: 56rem;
  padding-top: 2.6rem;
  padding-bottom: 1.6rem;
}

.policy-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.12;
  color: var(--ink);
}

.policy-body {
  max-width: 46rem;
  padding-bottom: 4.5rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.policy-body h2 {
  margin-top: 2.2rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ink);
}

/* -------------------------------------------------------------- responsive */

@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-aside {
    position: static;
    order: -1;
    grid-template-columns: 1fr;
  }

  .article-toc {
    padding: 0.95rem 1rem;
  }
}

@media (max-width: 720px) {
  .article-hero {
    padding-top: 1rem;
  }

  .article-cover {
    margin-bottom: 1.8rem;
  }

  .article-cover img {
    border-radius: var(--radius);
  }

  .article-body {
    max-width: none;
  }

  .article-prose {
    font-size: 1rem;
    line-height: 1.7;
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem;
  }

  .cta-panel .button {
    width: 100%;
    justify-content: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .article-card,
  .article-card__media img,
  .mini-card {
    transition: none;
  }
}