.blog-hero {
  padding: 88px 20px 76px;
  background: #0d1510;
  color: #fff;
  text-align: center;
}
.blog-hero .eyebrow { margin-bottom: 20px; }
.blog-hero h1 {
  max-width: 900px;
  margin: 0 auto 20px;
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  line-height: .96;
  letter-spacing: -.06em;
  text-wrap: balance;
}
.blog-hero p {
  max-width: 680px;
  margin: 0 auto;
  color: rgba(255,255,255,.68);
  font-size: 1.08rem;
  line-height: 1.65;
}
.hub-strip, .library { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.hub-strip { padding: 64px 0 44px; }
.section-kicker { margin: 0 0 10px; color: #087c59; font-size: .75rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.hub-strip h2, .library h2 { margin: 0 0 24px; font-size: clamp(1.8rem, 4vw, 2.65rem); letter-spacing: -.045em; }
.hub-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.hub-card {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  border-radius: 20px;
  background: #0d1510;
  color: #fff;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}
.hub-card:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(10,10,10,.14); }
.hub-card small { margin-bottom: auto; color: #19c785; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.hub-card strong { margin: 30px 0 8px; font-size: 1.28rem; letter-spacing: -.025em; }
.hub-card span { color: rgba(255,255,255,.66); font-size: .88rem; line-height: 1.5; }
.library { padding: 40px 0 100px; }
.topic-group { margin-top: 56px; }
.topic-group:first-of-type { margin-top: 0; }
.topic-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.topic-heading h2 { margin: 0; }
.topic-heading a { color: #087c59; font-size: .88rem; font-weight: 750; }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.article-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
  padding: 24px;
  border: 1px solid rgba(10,10,10,.09);
  border-radius: 20px;
  background: #fff;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}
.article-card:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(10,10,10,.07); }
.article-card small { color: #087c59; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.article-card h3 { margin: 22px 0 12px; font-size: 1.3rem; line-height: 1.18; letter-spacing: -.035em; }
.article-card p { margin: 0 0 22px; color: #5e5e5e; font-size: .9rem; line-height: 1.55; }
.article-card span { margin-top: auto; color: #767676; font-size: .78rem; }
@media (max-width: 850px) {
  .hub-grid, .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 580px) {
  .blog-hero { padding: 62px 18px 54px; }
  .hub-grid, .article-grid { grid-template-columns: 1fr; }
  .hub-card { min-height: 160px; }
  .topic-heading { align-items: start; flex-direction: column; gap: 8px; }
}