/* ═══════════════════════════════════════════════════════════════
   ARTICLE READER
   ═══════════════════════════════════════════════════════════════ */

@layer components {
  .article-reader {
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    padding-top: var(--nav-height, 100px);
    padding-bottom: var(--spacing-4xl);
  }

  .reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--color-accent);
    transform-origin: 0%;
    z-index: 9999;
  }

  /* ─── Header ────────────────────────────────────────────── */
  .article-reader__header {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--gutter) var(--spacing-xl);
    text-align: center;
  }

  .article-reader__meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
  }

  .article-reader__title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
  }

  .article-reader__hero-image {
    width: 100%;
    max-width: var(--content-wide);
    margin: 0 auto var(--spacing-3xl);
    aspect-ratio: 21 / 9;
    object-fit: cover;
  }

  /* ─── Content Grid (Sidebar + Body) ─────────────────────── */
  .article-reader__layout {
    max-width: var(--content-wide);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  @media (min-width: 1024px) {
    .article-reader__layout {
      grid-template-columns: 100px 1fr 100px; /* Sidebar | Content | Empty space to center content */
    }
  }

  /* ─── Share Sidebar ─────────────────────────────────────── */
  .article-share {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    justify-content: center;
  }

  @media (min-width: 1024px) {
    .article-share {
      flex-direction: column;
      position: sticky;
      top: 150px;
      margin-bottom: 0;
      justify-content: flex-start;
      align-items: center;
    }
  }

  .share-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
  }

  .share-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-3px);
  }

  .share-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
  }

  /* ─── Content Body ──────────────────────────────────────── */
  .article-reader__content {
    max-width: 750px;
    margin: 0 auto;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
  }

  .article-reader__content p {
    margin-bottom: var(--spacing-lg);
  }

  /* Editorial Drop Cap */
  .article-reader__content > p.lead::first-letter {
    font-size: 4.5rem;
    line-height: 1;
    float: left;
    margin-right: 0.5rem;
    margin-top: 0.2rem;
    color: var(--color-accent);
    font-family: var(--font-serif);
  }

  .article-reader__content h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-text);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
  }

  .article-reader__content h3 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    color: var(--color-text);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
  }

  .article-reader__content blockquote {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-style: italic;
    line-height: 1.3;
    color: var(--color-accent);
    border-left: 2px solid var(--color-accent);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
  }

  .article-reader__content .lead {
    font-size: 1.5rem;
    color: var(--color-text);
    line-height: 1.6;
  }

  /* ─── Related Articles ──────────────────────────────────── */
  .article-related {
    max-width: var(--content-wide);
    margin: var(--spacing-4xl) auto 0;
    padding: var(--spacing-3xl) var(--gutter) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }

  .article-related__header {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-2xl);
  }

  .article-related__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  @media (min-width: 768px) {
    .article-related__grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  /* Shared card styles (reused from InsightsHub but isolated for safety) */
  .related-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    text-decoration: none;
    position: relative;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: border-color var(--duration-fast) ease;
  }

  .related-card:hover {
    border-bottom-color: var(--color-accent);
  }

  .related-card__image-wrap {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
  }

  .related-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .related-card:hover .related-card__image {
    transform: scale(1.05);
  }

  .related-card__title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    line-height: 1.2;
    color: var(--color-text);
  }

  .related-card__meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  /* ─── 404 ───────────────────────────────────────────────── */
  .article-reader__not-found {
    text-align: center;
    padding: 20vh var(--gutter);
  }

  .article-reader__not-found h1 {
    font-family: var(--font-serif);
    font-size: 3rem;
    margin-bottom: 1rem;
  }
}