/* ============================================================
   Atlas Verum — article / long-form layout
   Layered on top of styles.css
   ============================================================ */

.article {
  padding: 8rem 0 5rem;
}

.article-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem;
}

.article-back {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 3rem;
  transition: color 0.3s;
}

.article-back:hover { color: var(--ink); }

.article-head {
  margin-bottom: 3.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin-bottom: 1.4rem;
}

.article-category { color: var(--accent); }
.article-dot { color: var(--rule); }

.article-head h1 {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 1.4rem;
}

.article-lede {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.55;
  color: var(--accent);
  margin-bottom: 2rem;
  max-width: 640px;
}

.article-byline {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.byline-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
}

.byline-role {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-quiet);
}

.article-body {
  font-family: var(--sans);
  font-size: 1.04rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* Floating standards-aside for research-mode pieces */
.article-aside {
  background: var(--canvas-elevated);
  border-left: 2px solid var(--accent);
  padding: 1.4rem 1.6rem;
  margin: 0 0 2.5rem 0;
}

.article-aside h4 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.article-aside ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.6rem;
}

.article-aside li {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.5;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.aside-code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}

@media (max-width: 680px) {
  .article-aside ul { grid-template-columns: 1fr; }
}

.article-body p {
  margin-bottom: 1.4rem;
}

.article-tldr {
  padding: 1.4rem 1.6rem;
  margin-bottom: 2.5rem !important;
  background: var(--canvas-elevated);
  border-left: 2px solid var(--accent);
  font-size: 0.98rem;
}

.article-tldr strong {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-right: 0.6rem;
}

.article-body h2 {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 1.7rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin-top: 3rem;
  margin-bottom: 1.2rem;
}

.article-body h2:first-of-type { margin-top: 2rem; }

.article-body ul {
  margin: 0 0 1.6rem 0;
  padding-left: 1.4rem;
}

.article-body ul li {
  margin-bottom: 0.6rem;
  padding-left: 0.3rem;
}

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

.article-body strong {
  color: var(--ink);
  font-weight: 600;
}

.article-body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: color 0.3s, border-color 0.3s;
}

.article-body a:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.article-rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0 1.5rem;
}

.article-sig {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-muted);
  text-align: center;
  font-size: 0.95rem;
}

.article-cta {
  margin: 4rem 0;
  padding: 2.5rem;
  background: linear-gradient(135deg, var(--ink) 0%, #0f0f0f 100%);
  color: var(--canvas);
  border: 1px solid var(--ink);
}

.article-cta h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--canvas);
  margin-bottom: 0.8rem;
}

.article-cta p {
  color: rgba(248, 245, 238, 0.78);
  font-size: 0.96rem;
  margin-bottom: 1.5rem;
  max-width: 540px;
}

.article-cta .cta-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--canvas);
}

.article-cta .cta-primary:hover {
  background: var(--canvas);
  color: var(--ink);
  border-color: var(--canvas);
}

.article-nav {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
}

.article-nav h4 {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.article-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-nav li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule-soft);
}

.article-nav li:last-child { border-bottom: none; }

.article-nav a {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color 0.3s;
}

.article-nav a:hover { color: var(--accent); }
.article-nav a span { color: var(--accent); transition: transform 0.3s; }
.article-nav a:hover span { transform: translateX(4px); }

@media (max-width: 680px) {
  .article { padding: 6rem 0 3rem; }
  .article-cta { padding: 1.8rem; }
}