/* ── Article nav ──────────────────────────────────────── */
.article-nav {
  max-width: 780px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-700);
  text-decoration: none;
  transition: color .2s;
}
.back-link:hover { color: var(--green-500); }
.back-link svg { width: 18px; height: 18px; }

/* ── Article layout ──────────────────────────────────── */
.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--green-100);
}

.article-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  font-weight: 800;
  color: var(--green-900);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.article-subtitle {
  font-size: 1.1rem;
  color: var(--text-500);
  line-height: 1.5;
}

/* ── Article body ────────────────────────────────────── */
.article-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--green-900);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-700);
  margin-bottom: 1.25rem;
}

.article-body ul {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-body li {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-700);
  margin-bottom: 0.5rem;
}

.article-body a {
  color: var(--green-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.article-body a:hover {
  border-bottom-color: var(--green-700);
}

/* ── Info box ────────────────────────────────────────── */
.info-box {
  background: var(--green-50);
  border: 1px solid var(--green-100);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}
.info-row {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-700);
  padding: 0.2rem 0;
}
.info-row strong {
  color: var(--text-900);
}
.info-row a {
  color: var(--green-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.info-row a:hover {
  border-bottom-color: var(--green-700);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 600px) {
  .article { padding: 1.5rem 1.25rem 3rem; }
  .article-header h1 { font-size: 1.5rem; }
  .info-box { padding: 1rem 1.25rem; }
}