/* ============================================================
   Article page layer — reading layout on top of playground.css
   Shared by all blog article pages.
   ============================================================ */

.article-head {
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 56px);
  margin-top: var(--gap);
  background:
    linear-gradient(150deg, rgba(255, 178, 30, 0.14), rgba(255, 178, 30, 0.03) 55%, rgba(255, 107, 0, 0.06)) padding-box,
    linear-gradient(160deg, rgba(255, 178, 30, 0.5), rgba(242, 240, 250, 0.08) 50%, rgba(255, 107, 0, 0.3)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 0 60px rgba(255, 178, 30, 0.1);
}
.article-head .card-tag {
  display: inline-block; margin-bottom: 22px;
  border: 1px solid rgba(255, 178, 30, 0.5); border-radius: var(--pill);
  padding: 5px 14px; font-weight: 700; font-size: 0.72rem; color: var(--amber);
}
.article-head h1 { font-size: clamp(1.9rem, 4vw, 3.2rem); max-width: 22ch; }
.article-head .standfirst {
  margin-top: 16px; max-width: 62ch;
  font-size: 1.05rem; font-weight: 450; line-height: 1.65; color: var(--muted);
}
.article-head .byline { margin-top: 20px; font-size: 0.8rem; font-weight: 600; color: var(--muted); }

.article-body {
  max-width: 72ch;
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) 6px 0;
}
.article-body h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  margin: 2.2em 0 0.7em;
}
.article-body h2:first-child { margin-top: 0; }
.article-body p { margin-bottom: 1.1em; color: var(--muted); font-size: 1rem; line-height: 1.75; }
.article-body p strong { color: var(--ink); }
.article-body ul, .article-body ol { margin: 0 0 1.2em; margin-inline-start: 1.3em; color: var(--muted); line-height: 1.7; }
.article-body li { margin-bottom: 0.45em; }
.article-body li::marker { color: var(--orange); }
.article-body a { color: var(--amber); text-underline-offset: 3px; }
.article-body a:hover { color: var(--orange); }

/* key-point callout card */
.article-body .callout {
  border-radius: var(--radius-sm);
  padding: 20px 24px; margin: 1.6em 0;
  background:
    linear-gradient(var(--glass), var(--glass)) padding-box,
    linear-gradient(160deg, rgba(255, 107, 0, 0.5), rgba(242, 240, 250, 0.08) 55%) border-box;
  border: 1px solid transparent;
  color: var(--ink); font-weight: 500;
}
.article-body .callout p { color: var(--ink); margin: 0; }

/* related links */
.article-related {
  max-width: 72ch; margin-inline: auto;
  padding-top: clamp(28px, 4vw, 48px);
}
.article-related h2 { font-size: 1.1rem; margin-bottom: 14px; }
.article-related .pills { display: flex; flex-wrap: wrap; gap: 10px; }