/* ── Article hero ─────────────────────────────────── */
.article-hero {
  position: relative;
  min-height: 52vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.article-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  z-index: 0;
}

.article-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,18,38,0.88) 30%, rgba(8,18,38,0.35) 100%);
  z-index: 1;
}

.article-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: 3rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 68ch;
}

.article-hero__inner h1 {
  color: #fff;
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
  margin-bottom: 0.5rem;
}

.article-back:hover {
  color: #fff;
}

.article-hero__sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 52ch;
  line-height: 1.6;
}

/* ── Article layout ───────────────────────────────── */
.article-layout {
  padding-block: 4rem 6rem;
}

.article-body {
  max-width: 72ch;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* ── Article sections ─────────────────────────────── */
.article-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-section h2 {
  margin-bottom: 0.25rem;
}

.article-section p {
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.article-section p strong {
  color: var(--color-text);
  font-weight: 600;
}

.article-section p em {
  font-style: italic;
}

/* ── Card-style sections (system types) ───────────── */
.article-section--card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.5rem;
  gap: 1.25rem;
}

/* ── System type header ───────────────────────────── */
.system-type-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

.system-type-num {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--color-accent);
  opacity: 0.2;
  line-height: 1;
  flex-shrink: 0;
  padding-top: 0.1em;
}

/* ── Article callout ──────────────────────────────── */
.article-callout {
  background: #eff6ff;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-block: 0.5rem;
}

.article-callout p {
  font-size: 0.97rem;
  color: #1e40af;
  line-height: 1.7;
}

/* ── Article image ────────────────────────────────── */
.article-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
  margin-block: 0.5rem;
}

/* ── Pros / cons grid ─────────────────────────────── */
.article-pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 2rem;
  margin-top: 0.5rem;
}

.article-pros-cons .benefits-label {
  padding-left: 0;
  margin-bottom: 0.6rem;
}

.article-pros-cons .benefits-list {
  padding-left: 0;
  padding-bottom: 0;
}

/* ── Article CTA ──────────────────────────────────── */
.article-cta {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  border-radius: var(--radius);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  color: #fff;
}

.article-cta h2 {
  color: #fff;
}

.article-cta p {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 48ch;
}

.article-cta .btn {
  background: #fff;
  color: var(--color-accent);
  border-color: #fff;
  margin-top: 0.5rem;
}

.article-cta .btn:hover {
  background: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.9);
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  .article-pros-cons {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .article-section--card {
    padding: 1.75rem;
  }

  .article-cta {
    padding: 2rem;
  }
}