:root{
  --accent:#0a2213;
  --accent-2:#183d26;
  --accent-soft:#eaf1ec;
  --cream:#f9f7f5;
  --paper:#ffffff;
  --ink:#20231f;
  --muted:#686473;
  --line:#e6e9e7;
  --warm:#f1b45a;
  --danger:#b94b4b;
  --radius:22px;
  --shadow:0 20px 50px rgba(10,34,19,.10);
  --container:min(1180px,calc(100% - 32px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--ink);line-height:1.65}
a{color:inherit}
img{max-width:100%;display:block}
button,input{font:inherit}
.container{width:var(--container);margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:.75rem;z-index:1000}
.skip-link:focus{left:1rem;top:1rem}
.topbar{background:var(--accent);color:#d9e3dd;font-size:.82rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:.72rem 0;gap:1rem}
.topbar a{color:#fff;text-decoration:none}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:2rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;text-decoration:none;font-weight:800;letter-spacing:-.04em;font-size:1.22rem;color:var(--accent)}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff}
.brand-mark svg{width:18px;height:18px}
.main-nav{display:flex;align-items:center;gap:1.1rem 1.3rem;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{text-decoration:none;font-size:.88rem;font-weight:650;color:#4a4752;white-space:nowrap}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--accent)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;width:42px;height:42px;place-items:center;color:var(--accent)}
.hero{position:relative;min-height:590px;color:#fff;display:flex;align-items:flex-end;overflow:hidden;background:#1b211e}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,25,20,.86),rgba(16,25,20,.38) 62%,rgba(16,25,20,.12)),linear-gradient(0deg,rgba(10,18,13,.52),transparent 55%)}
.hero-inner{position:relative;z-index:1;padding:8.2rem 0 5rem;max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;font-weight:800;color:#dce9e0}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor}
.hero h1{font-size:clamp(2.7rem,7vw,5.4rem);line-height:1.02;letter-spacing:-.055em;margin:.9rem 0 1.25rem;font-weight:600}
.hero h1 em{font-family:Georgia,serif;font-weight:400}
.hero p{font-size:1.06rem;max-width:620px;color:#edf3ef;margin:0 0 2rem}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;border-radius:999px;padding:.88rem 1.25rem;font-weight:750;text-decoration:none;border:1px solid transparent;transition:.2s ease}
.btn-primary{background:#fff;color:var(--accent)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.18)}
.btn-secondary{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.08)}
.search-strip{margin-top:-30px;position:relative;z-index:4}
.search-box{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:1rem;display:grid;grid-template-columns:1fr auto;gap:.75rem;border:1px solid var(--line)}
.search-box input{border:0;outline:0;padding:.72rem .9rem;font-size:1rem;min-width:0}
.search-box button{border:0;background:var(--accent);color:#fff;border-radius:12px;padding:.8rem 1.1rem;font-weight:750}
.section{padding:5.5rem 0}
.section-soft{background:var(--cream)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin-bottom:2rem}
.section-head h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.08;letter-spacing:-.045em;margin:0;color:#37353d}
.section-head p{max-width:560px;color:var(--muted);margin:.5rem 0 0}
.text-link{font-weight:750;color:var(--accent);text-decoration:none}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;display:flex;flex-direction:column;min-width:0;transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-media{aspect-ratio:4/3;background:var(--cream);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.2rem 1.25rem 1.35rem;display:flex;flex-direction:column;flex:1}
.chip{display:inline-flex;align-items:center;width:max-content;max-width:100%;font-size:.72rem;text-transform:uppercase;letter-spacing:.11em;font-weight:800;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:.42rem .68rem}
.card h3{font-size:1.28rem;line-height:1.25;letter-spacing:-.025em;margin:.9rem 0 .6rem;color:#37353d}
.card h3 a{text-decoration:none}
.card p{color:var(--muted);font-size:.94rem;margin:0 0 1rem}
.card-footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:.84rem;color:#757182}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:4.5rem;align-items:center}
.about-grid img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}
.about-copy h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.08;letter-spacing:-.045em;margin:0 0 1.2rem}
.about-copy p{color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:2rem}
.stat{border-top:1px solid var(--line);padding-top:1rem}
.stat strong{display:block;font-size:1.7rem;color:var(--accent)}
.page-hero{padding:6rem 0 3.8rem;background:var(--cream);border-bottom:1px solid var(--line)}
.page-hero .container{max-width:930px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:.45rem;color:#757182;font-size:.84rem;margin-bottom:1rem}
.breadcrumbs a{text-decoration:none}
.page-hero h1{font-size:clamp(2.45rem,6vw,4.8rem);line-height:1.04;letter-spacing:-.055em;margin:.45rem 0 1rem;color:#37353d}
.page-hero p{font-size:1.08rem;color:var(--muted);max-width:780px}
.page-meta{display:flex;gap:1rem;flex-wrap:wrap;color:#757182;font-size:.86rem;margin-top:1.25rem}
.article-shell{padding:4.5rem 0 6rem}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:4.5rem;justify-content:center}
.article-cover{border-radius:var(--radius);width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:2.25rem;background:var(--cream)}
.prose{font-size:1.03rem;color:#37353d}
.prose>*:first-child{margin-top:0}
.prose h1,.prose h2,.prose h3{line-height:1.2;letter-spacing:-.03em;color:#2f2d34;margin:2.2rem 0 .9rem}
.prose h2{font-size:1.85rem}
.prose h3{font-size:1.32rem}
.prose p{margin:0 0 1.25rem}
.prose ul,.prose ol{padding-left:1.35rem;margin:0 0 1.35rem}
.prose li{margin:.35rem 0}
.prose a{color:#165c34}
.prose img{border-radius:16px;margin:1.6rem auto;max-height:620px;object-fit:contain;background:#fff}
.prose blockquote{margin:1.5rem 0;padding:1rem 1.25rem;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 12px 12px 0}
.prose table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;margin:1.5rem 0}
.prose th,.prose td{border:1px solid var(--line);padding:.75rem;text-align:left;min-width:140px}
.prose hr{border:0;border-top:1px solid var(--line);margin:2rem 0}
.sidebar{position:sticky;top:110px;height:max-content}
.side-card{border:1px solid var(--line);border-radius:18px;padding:1.2rem;background:var(--cream);margin-bottom:1rem}
.side-card h3{margin:0 0 .8rem;font-size:1rem}
.side-card a{display:block;text-decoration:none;color:#4a4752;padding:.45rem 0;border-bottom:1px solid rgba(0,0,0,.06)}
.side-card a:last-child{border:0}
.listing-intro{max-width:780px;margin-bottom:2rem}
.notice{background:#fff8e8;border:1px solid #f0d59a;border-radius:14px;padding:1rem 1.2rem;color:#6f5422}
.bmi-card{border:1px solid var(--line);border-radius:18px;padding:1.3rem;background:var(--cream);margin:1.5rem 0 2rem}
.bmi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.bmi-card label{display:grid;gap:.35rem;font-weight:700;font-size:.86rem}
.bmi-card input,.bmi-card select{border:1px solid var(--line);border-radius:10px;padding:.72rem;background:#fff}
.bmi-result{font-weight:800;color:var(--accent);margin-top:1rem}
.site-footer{background:var(--cream);border-top:1px solid var(--line);padding:4.5rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1.25fr repeat(3,.75fr);gap:3rem}
.footer-brand p{color:var(--muted);max-width:360px}
.footer-col h3{font-size:.9rem;margin:0 0 1rem;color:#686473}
.footer-col a{display:block;text-decoration:none;color:var(--accent);font-weight:650;margin:.65rem 0}
.footer-bottom{border-top:1px solid var(--line);margin-top:3rem;padding-top:1.5rem;display:flex;justify-content:space-between;gap:1rem;color:#898c8a;font-size:.84rem}
.search-page{padding:5rem 0}
.search-results{display:grid;gap:1rem;margin-top:2rem}
.search-result{border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem}
.search-result a{text-decoration:none}
@media(max-width:900px){
  .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
  .main-nav.open{display:flex}
  .menu-toggle{display:grid}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .about-grid{grid-template-columns:1fr;gap:2.5rem}
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .topbar{display:none}
  .header-row{min-height:68px}
  .hero{min-height:520px}
  .hero-inner{padding:6rem 0 3rem}
  .card-grid{grid-template-columns:1fr}
  .section{padding:4rem 0}
  .section-head{align-items:flex-start;flex-direction:column}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .bmi-grid{grid-template-columns:1fr}
}

/* S10-E02-F05-ST001: category hubs + archive pagination */
.category-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.9rem}
.category-tile{display:block;text-align:center;padding:1.1rem .8rem;border:1px solid var(--line);border-radius:14px;background:var(--cream);text-decoration:none;color:var(--accent);font-weight:650;font-size:.92rem;transition:background .15s ease}
.category-tile:hover{background:var(--accent-soft)}
@media(max-width:900px){.category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* S10-E02-F05-ST002: /categories/ index -- same tile system, taller
   variant with room for the hub's intro sentence. */
.category-tile-full{text-align:left;padding:1.4rem;display:flex;flex-direction:column;gap:.5rem}
.category-tile-name{font-size:1.05rem}
.category-tile-intro{color:var(--muted);font-weight:400;font-size:.86rem;line-height:1.5}
.category-grid-full{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:900px){.category-grid-full{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.category-grid-full{grid-template-columns:1fr}}
.pagination{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:2.5rem;font-size:.92rem;flex-wrap:wrap}
.pagination a{color:var(--accent);text-decoration:none;font-weight:650}
.pagination a:hover{text-decoration:underline}
.pagination-pages{display:flex;gap:.5rem}
.pagination-pages a{padding:.3rem .7rem;border:1px solid var(--line);border-radius:8px}
.pagination-pages a[aria-current="page"]{background:var(--accent);color:#fff;border-color:var(--accent)}