:root{
  --bg:#ffffff; --ink:#15171c; --muted:#5b616e; --line:#e7e8ec;
  --accent:#f57c00; --accent-ink:#e06f00; --soft:#f7f8fa; --dark:#16181d; --radius:14px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.muted{color:var(--muted)} .fine{color:var(--muted);font-size:13px;line-height:1.5}
.accent{color:var(--accent)}
.more{margin-top:22px;font-weight:600}.more a:hover{color:var(--accent)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:22px;width:auto;display:block}
.brand-sub{font-weight:600;font-size:13px;color:var(--muted);border-left:1px solid var(--line);padding-left:10px;letter-spacing:.01em}
.nav-links{display:flex;gap:26px;font-size:14px;font-weight:600;color:var(--muted)}
.nav-links a:hover{color:var(--accent)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* hero — the only dark section */
.hero{background:var(--dark);background-size:cover;background-position:center;color:#fff;padding:104px 0 92px}
.hero .eyebrow{color:#ffb867}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.04;letter-spacing:-.03em;margin:0 0 20px;font-weight:800}
.hero .lede{color:#c3c7d0}
.lede{font-size:18px;color:var(--muted);max-width:640px;margin:0 0 28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;
  font-weight:600;font-size:15px;transition:.15s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-ink)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:#fff}
.section .btn-ghost{border-color:var(--line);color:var(--ink)}
.section .btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* sections */
.section{padding:60px 0}
.section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title{font-size:24px;font-weight:800;letter-spacing:-.02em;margin:0 0 24px}

/* sector / category grid */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.cat-card{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid var(--line);
  border-radius:var(--radius);font-weight:700;transition:.15s;background:#fff}
.cat-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.cat-card small{color:var(--muted);font-weight:500}

/* sector image tiles */
.sector-tile{position:relative;display:flex;align-items:flex-end;min-height:188px;border-radius:var(--radius);
  background-color:var(--dark);background-size:cover;background-position:center;overflow:hidden;color:#fff;
  border:1px solid var(--line);transition:.2s;box-shadow:0 1px 0 rgba(0,0,0,.02)}
.sector-tile:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(15,20,30,.18)}
.sector-tile-body{padding:18px 20px;width:100%}
.sector-tile h3{margin:0 0 2px;font-size:18px;font-weight:700;letter-spacing:-.01em;
  text-shadow:0 1px 12px rgba(0,0,0,.5)}
.sector-tile small{color:#d8dbe2;font-weight:500;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.sector-tile:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:.2s}
.sector-tile:hover:after{transform:scaleX(1)}

/* card grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(265px,1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--line);
  border-radius:var(--radius);background:#fff;transition:.15s;min-height:172px}
.card:hover{border-color:#cfd2d9;box-shadow:0 10px 30px rgba(15,20,30,.07);transform:translateY(-2px)}
.card-top{display:flex;justify-content:space-between;align-items:center}
.card-cat{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.card-head{display:flex;align-items:center;gap:10px}
.card-title{font-size:18px;font-weight:700;margin:0;letter-spacing:-.01em}
.card-tag{font-size:14px;color:var(--muted);margin:0;flex:1}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto}
.card-guide .card-title{font-size:17px;line-height:1.35}
.price{font-weight:700;font-size:14px}
.arrow{color:var(--accent);font-weight:800}
.tag{font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--soft);color:var(--muted)}
.tag-free{background:#e9fbf0;color:#0e8a47}

/* logos */
.logo{width:26px;height:26px;border-radius:6px;flex:0 0 auto}
.logo-lg{width:42px;height:42px;border-radius:9px;flex:0 0 auto}
.detail-head{display:flex;align-items:center;gap:14px;margin:0 0 8px}
.detail-head h1{margin:0}

/* detail / article */
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a:hover{color:var(--accent)}
.detail h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.03em;margin:0 0 10px;line-height:1.1}
.byline{font-size:13px;margin:0 0 8px}
.quick{display:flex;gap:24px;flex-wrap:wrap;padding:16px 0;margin:14px 0 20px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:14px}
.quick b{display:block;font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.body-text{font-size:17px;margin:24px 0}
.detail h2{font-size:23px;letter-spacing:-.02em;margin:40px 0 14px;font-weight:800;scroll-margin-top:80px}
.detail h3{font-size:17px;margin:0 0 10px}
.detail p{font-size:16px;margin:14px 0}
.detail ul,.detail ol{font-size:16px;margin:14px 0;padding-left:22px}
.detail li{margin:7px 0}
.detail table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.detail th,.detail td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.detail th{background:var(--soft);font-weight:700}
.detail blockquote{border-left:3px solid var(--accent);margin:18px 0;padding:6px 18px;color:var(--muted);background:var(--soft)}
.stat-cite{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:14px 18px;font-size:15px}
.stat-cite .muted{font-size:13px}

/* table of contents */
.toc{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:24px 0}
.toc b{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.toc ul{margin:10px 0 0;padding-left:18px;columns:2;font-size:14px}
.toc a:hover{color:var(--accent)}

ul.ticks,ul.crosses{list-style:none;padding:0;margin:14px 0;display:flex;flex-direction:column;gap:9px}
ul.ticks li,ul.crosses li{padding-left:26px;position:relative;font-size:15px}
ul.ticks li:before{content:"✓";position:absolute;left:0;color:#0e8a47;font-weight:700}
ul.crosses li:before{content:"−";position:absolute;left:0;color:#c2410c;font-weight:700}
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin:8px 0}

/* glossary */
.answer-block{font-size:18px;line-height:1.6;font-weight:500;color:var(--ink);
  background:var(--soft);border-left:4px solid var(--accent);border-radius:0 10px 10px 0;
  padding:16px 20px;margin:18px 0 26px}
.termlinks{font-size:15px;line-height:2}
.termlinks a{color:var(--accent-ink);font-weight:600}
.termlinks a:hover{color:var(--accent)}
.gloss-list{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.gloss-row{display:flex;flex-direction:column;gap:3px;padding:16px 18px;border:1px solid var(--line);
  border-radius:10px;background:#fff;transition:.15s}
.gloss-row:hover{border-color:var(--accent);transform:translateX(3px)}
.gloss-row b{font-size:16px}
.gloss-row span{font-size:14px;color:var(--muted)}

/* Inzonex CTA */
.cta-inzonex{background:linear-gradient(180deg,#fff,#fff7ef);border:1px solid #f7d9b3;
  border-left:4px solid var(--accent);border-radius:12px;padding:24px 26px;margin:34px 0}
.cta-inzonex h3{margin:0 0 8px;font-size:19px}
.cta-inzonex p{margin:0 0 16px;color:#4a4f59;font-size:15px}

/* compare */
.vs{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.vs-col{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.vs-col h2{margin:0}
.price-lg{font-size:24px;font-weight:800;margin:12px 0 4px;color:var(--accent)}

/* faq */
.faqs{display:flex;flex-direction:column;gap:10px;margin:14px 0}
.faq{border:1px solid var(--line);border-radius:10px;padding:14px 18px;background:#fff}
.faq summary{font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:"+ ";color:var(--accent);font-weight:800}
.faq[open] summary:before{content:"− "}
.faq p{margin:10px 0 0;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:44px 0;margin-top:20px;background:var(--soft)}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;margin-bottom:18px}
.foot-brand{font-weight:800;margin:0 0 4px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;font-weight:600;color:var(--muted)}
.foot-links a:hover{color:var(--accent)}
.site-footer .fine{max-width:760px}
.site-footer a{color:var(--accent-ink)}

@media(max-width:640px){
  .proscons,.vs{grid-template-columns:1fr}
  .toc ul{columns:1}
  .hero{padding:60px 0 48px}
  .nav{position:relative}
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:62px;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .25s ease}
  .nav-links a{padding:14px 24px;border-top:1px solid var(--line);font-size:16px}
  .site-header.open .nav-links{max-height:340px}
  .site-header.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}