/* ============================================================
   article.css — Single article page styles
   Shared base: ../../styles.css (never modified here)
   Also links: ../news.css for shared badge + card styles
   Only CSS custom properties from the design system are used.
   ============================================================ */

/* ----------------------------------------------------------
   1. Article header
   ---------------------------------------------------------- */

.article-header {
  padding: 36px 20px 0;
  background: var(--white);
}

.article-header-inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* Breadcrumb */
.article-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 28px;
  list-style: none;
  padding: 0;
  font-size: 13px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.62);
}

.article-breadcrumb li + li::before {
  content: "→";
  margin-right: 6px;
  font-size: 11px;
  color: rgba(20, 20, 20, 0.35);
}

.article-breadcrumb a {
  color: var(--blue);
  transition: color 180ms ease;
}

.article-breadcrumb a:hover {
  color: var(--aqua);
}

.article-breadcrumb a:focus-visible {
  outline: 3px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 3px;
}

.article-breadcrumb [aria-current="page"] {
  color: rgba(20, 20, 20, 0.62);
}

/* Article meta row */
.article-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.article-meta-date {
  font-size: 13px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.62);
}

.article-header h1 {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: clamp(32px, 7vw, 58px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.06;
  max-width: 900px;
}

.article-byline {
  margin: 0 0 36px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.62);
}

.article-byline strong {
  color: var(--blue-dark);
  font-weight: 700;
}

/* Hero image */
.article-hero-img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  height: clamp(280px, 50vw, 580px);
  background: var(--soft);
}

.article-hero-img-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 35%;
}

/* ----------------------------------------------------------
   1b. Article loading / error state
   ---------------------------------------------------------- */

.article-loading-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  background: var(--white);
}

#article-loading {
  text-align: center;
  color: rgba(20, 20, 20, 0.62);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ----------------------------------------------------------
   2. Article body — editorial reading column
   ---------------------------------------------------------- */

.article-body-section {
  padding: 56px 20px 64px;
  background: var(--white);
}

.article-body-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 48px;
}

/* Reading column — constrained width, centred */
.article-reading-col {
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}

/* Drop cap on first paragraph */
.article-reading-col .drop-cap::first-letter {
  float: left;
  font-size: 4.2em;
  font-weight: 800;
  line-height: 0.78;
  color: var(--blue);
  margin: 6px 10px 0 0;
  padding: 0;
  font-family: var(--font-display);
}

.article-reading-col p {
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
}

.article-reading-col p:last-child {
  margin-bottom: 0;
}

/* Sanity-generated body elements — h2, blockquote, lists, links, figures */
.article-reading-col h2 {
  margin: 36px 0 16px;
  font-size: clamp(20px, 3.5vw, 26px);
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.article-reading-col h3 {
  margin: 28px 0 12px;
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.article-reading-col blockquote {
  position: relative;
  margin: 36px 0;
  padding: 28px 28px 28px 36px;
  border-left: 5px solid var(--aqua);
  border-radius: 0 14px 14px 0;
  background: var(--soft);
  font-size: clamp(17px, 2.8vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--blue-dark);
  letter-spacing: -0.01em;
}

.article-reading-col ul,
.article-reading-col ol {
  margin: 0 0 24px;
  padding-left: 1.5em;
}

.article-reading-col li {
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
}

.article-reading-col a {
  color: var(--blue);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(26, 31, 219, 0.35);
  text-underline-offset: 3px;
  transition: color 180ms ease, text-decoration-color 180ms ease;
}

.article-reading-col a:hover {
  color: var(--aqua);
  text-decoration-color: rgba(35, 219, 198, 0.5);
}

/* Inline image blocks from Sanity (article-sanity.js uses class "article-figure") */
.article-figure {
  width: 100%;
  margin: 32px 0;
}

.article-figure img {
  display: block;
  width: 100%;
  height: clamp(200px, 40vw, 420px);
  object-fit: cover;
  border-radius: 16px;
}

.article-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.52);
  letter-spacing: 0.03em;
  text-align: center;
}

/* Pull quote */
.article-pull-quote {
  position: relative;
  margin: 40px 0;
  padding: 32px 32px 32px 40px;
  border-left: 5px solid var(--aqua);
  border-radius: 0 14px 14px 0;
  background: var(--soft);
}

.article-pull-quote::before {
  content: "\201C";
  position: absolute;
  top: 12px;
  left: 14px;
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  color: var(--aqua);
  font-family: var(--font-display);
  opacity: 0.7;
}

.article-pull-quote blockquote {
  margin: 0;
  padding: 0;
}

.article-pull-quote blockquote p {
  margin: 0;
  color: var(--blue-dark);
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.article-pull-quote cite {
  display: block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--aqua);
  font-style: normal;
}

/* Mid-article image */
.article-mid-image {
  width: 100%;
  margin: 0;
}

.article-mid-image img {
  display: block;
  width: 100%;
  height: clamp(240px, 48vw, 480px);
  object-fit: cover;
  object-position: 50% 40%;
  border-radius: 18px;
}

.article-mid-image figcaption {
  margin-top: 10px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(20, 20, 20, 0.52);
  letter-spacing: 0.03em;
  text-align: center;
}

/* ----------------------------------------------------------
   3. Article footer — tags, back link
   ---------------------------------------------------------- */

.article-footer {
  padding: 0 20px 56px;
  background: var(--white);
  border-bottom: 1px solid rgba(7, 23, 95, 0.08);
}

.article-footer-inner {
  max-width: 720px;
  margin: 0 auto;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border: 2px solid rgba(7, 23, 95, 0.15);
  border-radius: 999px;
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.article-tag:hover {
  border-color: var(--aqua);
  background: var(--soft);
}

.article-tag:focus-visible {
  outline: 3px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 999px;
}

.article-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 2px solid rgba(26, 31, 219, 0.3);
  padding-bottom: 2px;
  transition: border-color 180ms ease, color 180ms ease;
}

.article-back-link::before {
  content: "←";
  font-size: 16px;
}

.article-back-link:hover {
  border-color: var(--aqua);
  color: var(--aqua);
}

.article-back-link:focus-visible {
  outline: 3px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ----------------------------------------------------------
   4. Related articles
   ---------------------------------------------------------- */

.article-related {
  padding: 64px 20px 72px;
  background: var(--soft);
}

.article-related-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.article-related-heading {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin: 0 0 36px;
  flex-wrap: wrap;
}

.article-related-heading h2 {
  margin: 0;
  color: var(--blue-dark);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.015em;
}

.article-related-heading a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 2px solid rgba(26, 31, 219, 0.3);
  padding-bottom: 1px;
  transition: color 180ms ease, border-color 180ms ease;
}

.article-related-heading a:hover {
  color: var(--aqua);
  border-color: var(--aqua);
}

.article-related-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

/* Related cards reuse .article-card from news.css */

/* ----------------------------------------------------------
   5. Join CTA
   ---------------------------------------------------------- */

.article-join-cta {
  padding: 72px 20px 80px;
  background: var(--blue-dark);
  text-align: center;
}

.article-join-inner {
  max-width: 560px;
  margin: 0 auto;
}

.article-join-kicker {
  display: inline-block;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--aqua);
  color: var(--aqua);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.article-join-cta h2 {
  margin: 0 0 12px;
  color: var(--white);
  font-size: clamp(28px, 5.5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.article-join-cta p {
  margin: 0 0 32px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  line-height: 1.65;
}

/* ----------------------------------------------------------
   Responsive breakpoints
   ---------------------------------------------------------- */

@media (min-width: 720px) {
  .article-header {
    padding: 52px 64px 0;
  }

  .article-body-section {
    padding: 64px 64px 80px;
  }

  .article-footer {
    padding: 0 64px 64px;
  }

  .article-related {
    padding: 72px 64px 80px;
  }

  .article-join-cta {
    padding: 88px 64px 96px;
  }

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

  .article-hero-img-wrap {
    height: clamp(360px, 44vw, 580px);
    border-radius: 24px;
  }
}

@media (min-width: 1100px) {
  .article-header {
    padding-top: 58px;
  }

  .article-body-section {
    padding-top: 72px;
    padding-bottom: 96px;
  }

  .article-pull-quote blockquote p {
    font-size: 22px;
  }
}

@media (max-width: 374px) {
  .article-header h1 {
    font-size: 28px;
  }

  .article-pull-quote {
    padding: 24px 20px 24px 28px;
  }

  .article-pull-quote::before {
    left: 8px;
    top: 8px;
    font-size: 40px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .article-back-link,
  .article-tag,
  .article-breadcrumb a {
    transition: none;
  }
}

/* Additional article images from Sanity. */
.article-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.article-gallery figure {
  margin: 0;
}

.article-gallery img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
}