*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c:#0f4c81;--c-dk:#0a3260;--c-acc:#00b894;
  --bg:#f8f9fb;--sf:#ffffff;--bd:#e2e6ea;
  --tx:#1a1f2e;--mu:#6b7280;
  --ff-h:'DM Sans', sans-serif;--ff-b:'Source Serif 4', serif;
  --r:4px;--col:680px;
  --h1:2.75rem;--h2:1.875rem;--bs:1.0625rem;--lh:1.72;
}
html{color-scheme:light}
body{font-family:var(--ff-b);font-size:var(--bs);line-height:var(--lh);
  color:var(--tx);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--c-acc);text-decoration:none}
a:hover{text-decoration:underline;opacity:.9}

/* ── Header ── */
.site-hdr{background:linear-gradient(135deg,var(--c) 0%,var(--c-dk) 100%);
  position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,0.07)}
.hdr-in{max-width:1140px;margin:0 auto;padding:.65rem 1.5rem;
  display:flex;align-items:center;gap:1.75rem;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:.4rem;
  font-family:var(--ff-h);font-size:1.05rem;font-weight:700;
  color:#ffffff;letter-spacing:-.02em;white-space:nowrap}
.brand:hover{text-decoration:none;opacity:.9}
.hnav{display:flex;gap:1.25rem;align-items:center;flex-wrap:wrap;margin-left:auto}
.hnav a{color:rgba(255,255,255,0.75);font-size:.82rem;font-weight:500;
  border-bottom:1px solid transparent;padding-bottom:1px;transition:all .15s}
.hnav a:hover{color:#fff;text-decoration:none;border-color:rgba(255,255,255,.5)}

/* ── Breadcrumb ── */
.bc-bar{background:rgba(0,0,0,.03);
  border-bottom:1px solid var(--bd);font-size:.78rem;color:var(--mu);padding:.4rem 0}
.bc-bar .in{max-width:1140px;margin:0 auto;padding:0 1.5rem}
.bc-bar a{color:var(--mu)}
.bc-bar a:hover{color:var(--c-acc);text-decoration:none}

/* ── Article hero ── */
.art-hero{background:linear-gradient(160deg,var(--c) 0%,var(--c-dk) 100%);
  padding:2.75rem 0 2.25rem;color:#fff}
.art-hero .in{max-width:1140px;margin:0 auto;padding:0 1.5rem}
.art-hero h1{font-family:var(--ff-h);font-size:var(--h1);font-weight:700;
  line-height:1.2;letter-spacing:-.025em;max-width:var(--col);margin-bottom:.9rem}
.art-meta{display:flex;align-items:center;gap:.9rem;flex-wrap:wrap;
  font-size:.8rem;opacity:.82}
.art-meta span{display:flex;align-items:center;gap:.28rem}

/* ── Main content ── */
.page-body{max-width:1140px;margin:0 auto;padding:2.5rem 1.5rem 4rem}
.art-body{max-width:var(--col)}
h2{font-family:var(--ff-h);font-size:var(--h2);font-weight:700;
  line-height:1.25;letter-spacing:-.02em;color:var(--tx);
  margin:2.5rem 0 .75rem;padding-top:.25rem}
h3{font-family:var(--ff-h);font-size:1.15rem;font-weight:600;
  margin:2rem 0 .5rem;color:var(--tx)}
p{margin-bottom:1.15rem;color:var(--tx)}
ul,ol{margin:0 0 1.15rem 1.6rem}li{margin-bottom:.35rem}
strong{font-weight:600}
em{font-style:italic}
blockquote{border-left:3px solid var(--c-acc);padding:.8rem 1.25rem;
  margin:1.75rem 0;background:rgba(0,0,0,.025);
  border-radius:0 var(--r) var(--r) 0;font-style:italic;color:var(--mu)}
figure{margin:2rem 0}
figure img{max-width:100%;height:auto;border-radius:var(--r);display:block;
  box-shadow:0 2px 12px rgba(0,0,0,0.07)}
figcaption{font-size:.8rem;color:var(--mu);margin-top:.6rem;text-align:center}
hr{border:none;border-top:1px solid var(--bd);margin:2rem 0}

/* ── Callout box ── */
.callout{background:var(--sf);border:1px solid var(--bd);
  border-left:3px solid var(--c-acc);border-radius:var(--r);
  padding:1rem 1.25rem;margin:1.75rem 0;font-size:.92rem}
.callout strong{color:var(--c-acc)}

/* ── Author box ── */
.author-box{display:flex;align-items:flex-start;gap:1rem;
  padding:1.5rem;background:var(--sf);border:1px solid var(--bd);
  border-radius:var(--r);margin:2.5rem 0}
.author-av{width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--c),var(--c-dk));color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--ff-h);font-size:.95rem;font-weight:700;flex-shrink:0}
.author-info h4{font-family:var(--ff-h);font-size:.95rem;font-weight:700;margin-bottom:.25rem}
.author-info p{font-size:.82rem;color:var(--mu);margin:0;line-height:1.5}

/* ── Homepage hero ── */
.hp-hero{background:linear-gradient(150deg,var(--c) 0%,var(--c-dk) 100%);
  color:#fff;padding:3.5rem 0 3rem;overflow:hidden}
.hp-hero .in{max-width:680px;margin:0 auto;padding:0 1.5rem;text-align:center}
.hp-hero-in{max-width:1140px;margin:0 auto;padding:0 1.5rem;
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.hp-hero-badge{display:inline-block;background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.28);border-radius:20px;
  padding:.28rem .9rem;font-size:.72rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:.9rem}
.hp-hero h1{font-family:var(--ff-h);font-size:clamp(1.75rem,4vw,2.85rem);
  font-weight:700;letter-spacing:-.03em;margin-bottom:.85rem;line-height:1.15}
.hp-hero p{font-size:1.05rem;opacity:.88;line-height:1.6}
.hp-hero-text p{max-width:460px}
.hp-hero-visual{display:flex;align-items:center;justify-content:flex-end}
.hp-hero-visual img{width:100%;max-width:520px;height:340px;
  object-fit:cover;border-radius:16px;
  box-shadow:0 20px 60px rgba(0,0,0,.45)}

/* ── Article grid ── */
.grid-wrap{max-width:1140px;margin:0 auto;padding:3rem 1.5rem 4rem}
.grid-wrap h2{font-family:var(--ff-h);font-size:1.5rem;font-weight:700;
  margin-bottom:1.5rem;color:var(--tx)}
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.25rem}
.art-card{display:block;background:var(--sf);border:1px solid var(--bd);
  border-radius:var(--r);padding:0;overflow:hidden;
  transition:box-shadow .18s,transform .18s,border-color .18s;color:var(--tx)}
.art-card:hover{box-shadow:0 2px 12px rgba(0,0,0,0.07);transform:translateY(-2px);
  border-color:var(--c-acc);text-decoration:none}
.art-card-body{padding:1.1rem 1.4rem 1.35rem}
.art-card h3{font-family:var(--ff-h);font-size:1rem;font-weight:600;
  line-height:1.4;color:var(--tx);margin-bottom:.4rem}
.art-card p{font-size:.82rem;color:var(--mu);margin:0;line-height:1.5}

/* ── Related articles ── */
.related-wrap{margin:2.5rem 0 0;border-top:1px solid var(--bd);padding-top:2rem}
.related-wrap h3{font-family:var(--ff-h);font-size:1.05rem;font-weight:700;
  margin-bottom:1rem;color:var(--tx)}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.8rem}
.related-card{display:block;padding:.875rem 1rem;background:var(--sf);
  border:1px solid var(--bd);border-radius:var(--r);color:var(--tx);
  font-size:.875rem;font-weight:500;line-height:1.4;transition:border-color .15s,color .15s}
.related-card:hover{border-color:var(--c-acc);text-decoration:none;color:var(--c-acc)}

/* ── Hub badge ── */
.hub-badge{display:inline-block;background:var(--c-acc);color:#fff;
  font-size:.7rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:.2rem .6rem;border-radius:3px;margin-bottom:.75rem}

/* ── Footer ── */
.site-ftr{background:#020617;color:#6b7280;padding:3rem 0 0;font-size:.85rem}
.ftr-grid{max-width:1140px;margin:0 auto;padding:0 1.5rem 2rem;
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:2.5rem;flex-wrap:wrap}
.ftr-brand-name{font-family:var(--ff-h);font-size:1.05rem;font-weight:700;color:#e5e7eb;
  margin-bottom:.4rem}
.ftr-tagline{font-size:.8rem;color:#6b7280;line-height:1.5;max-width:260px}
.ftr-col h4{font-size:.72rem;font-weight:600;color:#9ca3af;
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:.75rem}
.ftr-col a{display:block;color:#6b7280;margin-bottom:.35rem;font-size:.82rem}
.ftr-col a:hover{color:#fff;text-decoration:none}
.ftr-bottom{max-width:1140px;margin:0 auto;padding:1rem 1.5rem;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:.5rem;font-size:.75rem;color:#4b5563}
.ftr-bottom a{color:#6b7280}.ftr-bottom a:hover{color:#fff;text-decoration:none}

/* ── TOC box ── */
.toc-box{background:var(--sf);border:1px solid var(--bd);
  border-left:3px solid var(--c);border-radius:var(--r);
  padding:1.2rem 1.5rem;margin:0 0 2rem}
.toc-box h4{font-family:var(--ff-h);font-size:.75rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;color:var(--mu);margin-bottom:.8rem}
.toc-box ol{margin:0 0 0 1.1rem;padding:0}
.toc-box li{margin-bottom:.38rem;font-size:.875rem}
.toc-box a{color:var(--tx);border-bottom:1px solid var(--bd);padding-bottom:1px;
  transition:color .15s,border-color .15s}
.toc-box a:hover{color:var(--c-acc);text-decoration:none;border-color:var(--c-acc)}

/* ── Evidence badge ── */
.evidence-badge{display:inline-flex;align-items:center;gap:.4rem;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.22);
  border-radius:20px;padding:.22rem .8rem;font-size:.68rem;font-weight:700;
  letter-spacing:.05em;text-transform:uppercase;color:rgba(255,255,255,.9)}
.evidence-badge::before{content:"";width:6px;height:6px;border-radius:50%;
  background:var(--c-acc);display:inline-block;flex-shrink:0}

/* ── Key research points ── */
.key-facts{background:var(--sf);border:1px solid var(--bd);
  border-left:4px solid var(--c-acc);border-radius:var(--r);
  padding:1.2rem 1.5rem;margin:0 0 1.75rem}
.key-facts h4{font-family:var(--ff-h);font-size:.75rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;color:var(--c-acc);margin-bottom:.75rem}
.key-facts ul{margin:0 0 0 1rem;padding:0}
.key-facts li{font-size:.9rem;margin-bottom:.4rem;color:var(--tx)}

/* ── Disclaimer ── */
.disclaimer-box{background:var(--sf);border:1px solid var(--bd);
  border-left:3px solid var(--mu);border-radius:var(--r);
  padding:.85rem 1.15rem;margin:0 0 1.75rem;
  font-size:.8rem;color:var(--mu);line-height:1.55}
.disclaimer-box strong{color:var(--tx);font-weight:600}

/* ── Category chip ── */
.cat-chip{display:inline-flex;align-items:center;
  background:var(--c-acc);color:#fff;
  font-size:.68rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:.18rem .65rem;border-radius:20px}
a.cat-chip:hover{opacity:.85;text-decoration:none}

/* ── Hero chips row ── */
.hero-chips{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap;margin-bottom:.8rem}

/* ── Stats bar ── */
.stats-bar{background:var(--sf);border-bottom:1px solid var(--bd)}
.stats-bar .in{max-width:1140px;margin:0 auto;padding:1.2rem 1.5rem;
  display:flex;justify-content:center;gap:3.5rem;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-item strong{display:block;font-family:var(--ff-h);font-size:1.8rem;
  font-weight:700;color:var(--c);line-height:1;margin-bottom:.25rem}
.stat-item span{font-size:.72rem;color:var(--mu);text-transform:uppercase;letter-spacing:.06em}

/* ── Researcher feature ── */
.researcher-feat{max-width:1140px;margin:0 auto;
  padding:2rem 1.5rem 2.5rem;
  display:flex;align-items:flex-start;gap:1.5rem;
  border-top:1px solid var(--bd)}
.researcher-feat .author-av{width:60px;height:60px;font-size:1rem;flex-shrink:0}
.researcher-feat h3{font-family:var(--ff-h);font-size:1.05rem;font-weight:700;
  color:var(--tx);margin-bottom:.2rem}
.researcher-feat .author-title{font-size:.82rem;color:var(--c);font-weight:500;
  margin-bottom:.45rem}
.researcher-feat p{font-size:.875rem;color:var(--mu);margin:0;line-height:1.6}

/* ── Category overview ── */
.cat-overview{max-width:1140px;margin:0 auto;padding:2rem 1.5rem;
  border-top:1px solid var(--bd)}
.cat-overview>h2{font-family:var(--ff-h);font-size:1.2rem;font-weight:700;
  margin-bottom:1rem;color:var(--tx)}
.cat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}
.cat-card{display:block;background:var(--sf);border:1px solid var(--bd);
  border-radius:var(--r);padding:1rem 1.25rem;
  transition:border-color .15s,transform .15s}
.cat-card:hover{border-color:var(--c-acc);text-decoration:none;transform:translateY(-1px)}
.cat-card h3{font-family:var(--ff-h);font-size:.92rem;font-weight:600;
  color:var(--tx);margin-bottom:.2rem}
.cat-card p{font-size:.78rem;color:var(--mu);margin:0}

/* ── Card footer ── */
.card-foot{display:flex;align-items:center;gap:.5rem;margin-top:.65rem;flex-wrap:wrap}

/* ── CTA button ── */
.btn-cta{display:inline-block;background:var(--c-acc);color:#fff;
  font-family:var(--ff-h);font-size:.95rem;font-weight:700;
  padding:.75rem 1.85rem;border-radius:var(--r);margin-top:1.4rem;
  transition:opacity .15s,transform .15s;letter-spacing:-.01em;white-space:nowrap}
.btn-cta:hover{opacity:.88;transform:translateY(-2px);text-decoration:none;color:#fff}

/* ── Trust pillars ── */
.trust-pillars{max-width:1140px;margin:0 auto;padding:2.5rem 1.5rem 2rem;
  border-top:1px solid var(--bd)}
.trust-pillars>h2{font-family:var(--ff-h);font-size:1.5rem;font-weight:700;
  margin-bottom:1.5rem;color:var(--tx);text-align:center}
.tp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.trust-pillar{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);
  padding:1.75rem 1.25rem;display:flex;flex-direction:column;
  align-items:center;gap:.65rem;text-align:center}
.tp-icon{width:48px;height:48px;border-radius:50%;
  background:rgba(128,128,128,.1);
  display:flex;align-items:center;justify-content:center;color:var(--c-acc)}
.tp-icon svg{width:24px;height:24px}
.trust-pillar h3{font-family:var(--ff-h);font-size:.95rem;font-weight:700;
  color:var(--tx);margin:0}
.trust-pillar p{font-size:.82rem;color:var(--mu);margin:0;line-height:1.55}

/* ── Article card with image ── */
.art-card-img{width:100%;aspect-ratio:16/9;overflow:hidden;background:var(--bd)}
.art-card-img img{width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .3s}
.art-card:hover .art-card-img img{transform:scale(1.04)}

/* ── Article featured image ── */
.art-feat-img{max-width:1140px;margin:0 auto;padding:1.5rem 1.5rem 0}
.art-feat-img img{width:100%;height:auto;border-radius:var(--r);display:block;
  aspect-ratio:16/9;object-fit:cover;box-shadow:0 2px 12px rgba(0,0,0,0.07)}

/* ── Article card date label ── */
.art-card-date{display:block;font-size:.68rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.06em;
  color:var(--c-acc);margin-bottom:.35rem}

/* ── About/mission strip ── */
.about-strip{max-width:1140px;margin:0 auto;padding:2.5rem 1.5rem;
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;
  border-top:1px solid var(--bd)}
.about-strip-img img{width:100%;border-radius:12px;object-fit:cover;
  aspect-ratio:4/3;display:block;box-shadow:0 2px 12px rgba(0,0,0,0.07)}
.about-strip-text h2{font-family:var(--ff-h);font-size:1.55rem;font-weight:700;
  margin-bottom:.85rem;color:var(--tx);letter-spacing:-.02em}
.about-strip-text p{color:var(--mu);line-height:1.65;margin-bottom:1.25rem}

/* ── Responsive ── */
@media(max-width:680px){
  .art-hero h1{font-size:clamp(1.45rem,6vw,2.25rem)}
  .hdr-in{padding:.6rem 1rem}
  .page-body,.grid-wrap{padding-left:1rem;padding-right:1rem}
  .art-grid,.related-grid{grid-template-columns:1fr}
  .author-box{flex-direction:column}
  .ftr-grid{grid-template-columns:1fr;gap:1.5rem;padding-bottom:1.5rem}
  .ftr-bottom{flex-direction:column;text-align:center}
  h2{font-size:1.35rem}
  .stats-bar .in{gap:1.5rem}
  .researcher-feat{flex-direction:column;align-items:center;text-align:center}
  .hero-chips{margin-bottom:.6rem}
  .toc-box ol{margin-left:.8rem}
  .trust-pillars{padding:1.5rem 1rem 1rem}
  .trust-pillars>h2{text-align:left}
  .tp-grid{grid-template-columns:1fr 1fr}
  .art-feat-img{padding:1rem 1rem 0}
  .hp-hero-in{grid-template-columns:1fr}
  .hp-hero-visual{display:none}
  .hp-hero-text p{max-width:100%}
  .about-strip{grid-template-columns:1fr;gap:1.5rem}
  .about-strip-img{display:none}
}