/* =============================================
   VESPER — Tool Article Styles
   ============================================= */

/* ── Article Hero ── */
.article-hero {
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.article-hero__bg {
  position: absolute;
  inset: 0;
  opacity: 0.07;
  pointer-events: none;
}

.article-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  transition: color var(--transition);
  letter-spacing: 0.04em;
}

.article-hero__back:hover { color: var(--text-secondary); }

.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.article-hero__pillar {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.article-hero__divider {
  width: 1px;
  height: 12px;
  background: var(--border);
}

.article-hero__date {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.article-hero__title {
  margin-bottom: 20px;
}

.article-hero__title em {
  font-style: italic;
  color: var(--accent);
}

.article-hero__lede {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 40px;
}

.article-hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.article-hero__cta:hover {
  background: #D8CCFF;
  transform: translateY(-1px);
}

/* ── Article body ── */
.article-body {
  padding: 80px 0 100px;
}

.article-body__inner {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 80px;
  align-items: start;
}

.article-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  margin: 48px 0 16px;
  color: var(--text-primary);
}

.article-content h2:first-child { margin-top: 0; }

.article-content p {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}

.article-content strong {
  color: var(--text-primary);
  font-weight: 500;
}

.article-content em {
  color: var(--accent);
  font-style: normal;
}

.article-content ul {
  list-style: none;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.article-content ul li {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.article-content ul li::before {
  content: '✦';
  color: var(--accent);
  font-size: 0.6rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ── Sidebar ── */
.article-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sidebar-card__title {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.sidebar-card__cta {
  display: block;
  text-align: center;
  padding: 12px;
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
  margin-top: 16px;
}

.sidebar-card__cta:hover {
  background: #D8CCFF;
}

.sidebar-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-fact__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--text-primary);
}

.sidebar-fact__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.related-tools {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-tool {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.related-tool:hover {
  border-color: var(--accent-dim);
  background: rgba(200, 184, 255, 0.04);
}

.related-tool__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.related-tool__name {
  font-size: 0.85rem;
  color: var(--text-primary);
}

.related-tool__type {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .article-body__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .article-sidebar {
    position: static;
  }
}