/* disinfectant.org — design system */
:root{
  --navy:#0B2545; --ink:#1B2B3F; --muted:#5A6B80; --line:#E2EAF2;
  --blue:#1A6FE0; --blue-600:#1559B8; --teal:#0EA5A4; --teal-50:#E8F7F6;
  --blue-50:#EDF4FD; --bg:#FFFFFF; --bg-soft:#F5F9FC; --warn:#B45309; --warn-50:#FFF7EB;
  --radius:14px; --radius-sm:9px; --shadow:0 1px 2px rgba(11,37,69,.06),0 6px 24px rgba(11,37,69,.07);
  --font-head:"Plus Jakarta Sans",Inter,system-ui,sans-serif; --font-body:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Source Serif 4",Georgia,serif; --max:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);font-size:17px;line-height:1.65}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-600)}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy);line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section.soft{background:var(--bg-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:700 .78rem/1 var(--font-head);text-transform:uppercase;letter-spacing:.12em;color:var(--teal);margin-bottom:14px}
.lead{font-size:1.15rem;color:var(--muted);max-width:680px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.section-head.center .lead{margin:0 auto}
.cite{display:inline-block;font:600 .68em/1.4 var(--font-body);color:var(--warn);background:var(--warn-50);border:1px dashed #F2C48A;border-radius:5px;padding:0 5px;vertical-align:.12em;white-space:nowrap;text-decoration:none}
.ph{color:var(--warn);background:var(--warn-50);border-radius:4px;padding:0 4px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font:700 .98rem/1 var(--font-head);padding:14px 22px;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:.15s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-600);color:#fff}
.btn-ghost{border-color:#C9D8EA;color:var(--navy);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{padding:10px 16px;font-size:.9rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 1.32rem/1 var(--font-head);color:var(--navy);letter-spacing:-.02em}
.brand svg{width:30px;height:34px}
.brand span{color:var(--teal);font-weight:700}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:9px 13px;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
.nav-links a:hover,.nav-links a[aria-current=page]{background:var(--blue-50);color:var(--blue)}
.nav-cta{margin-left:8px}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:44px;cursor:pointer;color:var(--navy)}
@media (max-width:920px){
  .menu-btn{display:grid;place-items:center}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 18px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 12px}
  .nav-cta{margin:8px 0 0}
  .nav-cta .btn{width:100%;justify-content:center}
}

/* hero */
.hero{position:relative;overflow:hidden;padding:84px 0 72px;background:radial-gradient(1200px 520px at 85% -10%,#DDF3F2 0,transparent 60%),radial-gradient(900px 500px at -10% 10%,#E4EEFC 0,transparent 55%),#fff}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero h1 .hl{background:linear-gradient(90deg,var(--blue),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:1.22rem;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px;padding:0;list-style:none;color:var(--muted);font-size:.93rem;font-weight:500}
.hero-badges li{display:flex;align-items:center;gap:8px}
.hero-badges svg{width:18px;height:18px;color:var(--teal)}
.hero-art{position:relative}
.molecule-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:28px}
.molecule-card .formula{font:800 2.6rem/1 var(--font-head);color:var(--navy);letter-spacing:-.02em}
.molecule-card .formula sub{font-size:.5em}
.molecule-card dl{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;margin:20px 0 0;font-size:.95rem}
.molecule-card dt{color:var(--muted)}
.molecule-card dd{margin:0;font-weight:600;color:var(--navy)}
.float-chip{position:absolute;background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);padding:9px 15px;font:700 .85rem/1 var(--font-head);color:var(--navy);display:flex;gap:8px;align-items:center}
.float-chip i{width:9px;height:9px;border-radius:50%;background:var(--teal);display:block}
.chip-a{top:-18px;right:24px}.chip-b{bottom:-18px;left:-14px}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:44px}.hero{padding:56px 0 64px}.chip-b{left:10px}}

/* cards & grids */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 1px 2px rgba(11,37,69,.04)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--teal-50);color:var(--teal);margin-bottom:16px}
.icon svg{width:24px;height:24px}
.icon.blue{background:var(--blue-50);color:var(--blue)}

/* explainer */
.explainer{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:920px){.explainer{grid-template-columns:1fr;gap:32px}}
.steps{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
.steps li{display:grid;grid-template-columns:38px 1fr;gap:14px;align-items:start}
.steps b.n{width:38px;height:38px;border-radius:50%;background:var(--blue-50);color:var(--blue);display:grid;place-items:center;font-family:var(--font-head)}
.ph-scale{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.ph-bar{height:16px;border-radius:999px;background:linear-gradient(90deg,#F59E0B,#FACC15 22%,#34D399 45%,#22D3EE 60%,#3B82F6 78%,#6366F1);margin:18px 0 8px;position:relative}
.ph-ticks{display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted)}
.ph-zone{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
.ph-zone div{border-radius:10px;padding:12px;font-size:.88rem;background:var(--bg-soft)}
.ph-zone div.on{background:var(--teal-50);outline:2px solid var(--teal)}
.ph-zone strong{display:block;font-family:var(--font-head);color:var(--navy)}

/* kill spectrum */
.spectrum{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
@media (max-width:1080px){.spectrum{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.spectrum{grid-template-columns:repeat(2,1fr)}}
.org{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;text-align:left;position:relative}
.org .ico{width:54px;height:54px;margin-bottom:12px}
.org h3{font-size:1.02rem;margin-bottom:4px}
.org p{font-size:.86rem;color:var(--muted);margin:0 0 10px;line-height:1.5}
.org .lvl{display:flex;gap:4px;margin-top:auto}
.org .lvl i{flex:1;height:6px;border-radius:3px;background:var(--line)}
.org .lvl i.f{background:var(--teal)}
.org small{display:block;font-size:.72rem;color:var(--muted);margin-top:6px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.resist{margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px}
.resist-bar{display:flex;align-items:center;gap:12px;font-size:.85rem;color:var(--muted);flex-wrap:wrap}
.resist-bar .track{flex:1;min-width:200px;height:10px;border-radius:999px;background:linear-gradient(90deg,#BFE9E7,#0EA5A4 50%,#0B2545)}

/* safety */
.safety{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
@media (max-width:920px){.safety{grid-template-columns:1fr;gap:32px}}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:28px 1fr;gap:12px}
.check-list svg{width:26px;height:26px;color:var(--teal)}
.ppe{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.ppe .card{padding:20px}
.ppe .tag{display:inline-block;font:700 .72rem/1 var(--font-head);padding:6px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.tag-ok{background:var(--teal-50);color:#0B7F7E}.tag-care{background:var(--warn-50);color:var(--warn)}
.note{font-size:.88rem;color:var(--muted);border-left:3px solid var(--teal);padding:6px 0 6px 14px;margin-top:22px}

/* comparison table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
table.compare{width:100%;border-collapse:collapse;min-width:820px;font-size:.93rem}
.compare th,.compare td{padding:15px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{font-family:var(--font-head);color:var(--navy);background:var(--bg-soft);font-size:.9rem}
.compare thead th.hocl{background:var(--navy);color:#fff}
.compare td.hocl{background:#F1FAFA;font-weight:600;color:var(--navy)}
.compare tbody th{font-weight:600;color:var(--navy);width:180px}
.compare tr:last-child td,.compare tr:last-child th{border-bottom:0}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:7px;vertical-align:1px}
.d-good{background:#10B981}.d-mid{background:#F59E0B}.d-low{background:#EF4444}
.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:.85rem;color:var(--muted);margin-top:14px}

/* posts */
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:inherit;transition:.18s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:inherit}
.thumb{aspect-ratio:16/9;display:grid;place-items:center;position:relative;overflow:hidden}
.thumb svg{width:64px;height:64px;color:#fff;opacity:.95;position:relative}
.thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.25),transparent 45%),radial-gradient(circle at 10% 90%,rgba(255,255,255,.12),transparent 40%)}
.t-science{background:linear-gradient(135deg,#1A6FE0,#0EA5A4)}
.t-studies{background:linear-gradient(135deg,#0B2545,#1A6FE0)}
.t-industry{background:linear-gradient(135deg,#0EA5A4,#22C1A0)}
.t-myths{background:linear-gradient(135deg,#6D5DD3,#1A6FE0)}
.t-howto{background:linear-gradient(135deg,#0B7F7E,#38BDF8)}
.t-news{background:linear-gradient(135deg,#334E68,#0EA5A4)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.cat{font:700 .74rem/1 var(--font-head);text-transform:uppercase;letter-spacing:.09em;color:var(--teal);margin-bottom:10px}
.post-card h3{font-size:1.1rem;line-height:1.35;margin-bottom:8px}
.post-card p{font-size:.93rem;color:var(--muted);margin-bottom:14px}
.meta{font-size:.82rem;color:var(--muted);margin-top:auto;display:flex;gap:6px;flex-wrap:wrap}
.post-card.featured{grid-column:span 2;flex-direction:row}
.post-card.featured .thumb{aspect-ratio:auto;flex:1.1;min-height:280px}
.post-card.featured .post-body{flex:1;padding:30px}
.post-card.featured h3{font-size:1.5rem}
@media (max-width:980px){.post-card.featured{grid-column:span 2}}
@media (max-width:640px){.post-card.featured{grid-column:auto;flex-direction:column}.post-card.featured .thumb{min-height:0;aspect-ratio:16/9}}

/* research teaser */
.research-teaser{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:center;background:var(--navy);color:#D7E3F1;border-radius:24px;padding:52px;position:relative;overflow:hidden}
.research-teaser::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,164,.45),transparent 70%)}
.research-teaser h2{color:#fff}
.research-teaser .eyebrow{color:#5EEAD4}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;position:relative}
.stat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px}
.stat b{display:block;font:800 1.7rem/1.1 var(--font-head);color:#fff}
.stat span{font-size:.85rem}
.mini-study{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px 16px;margin-top:12px;font-size:.9rem;position:relative}
.mini-study b{color:#fff;display:block;font-family:var(--font-head)}
@media (max-width:920px){.research-teaser{grid-template-columns:1fr;padding:34px 24px}.stat-row{grid-template-columns:1fr 1fr 1fr}}
@media (max-width:480px){.stat b{font-size:1.3rem}.stat{padding:12px}}

/* newsletter */
.newsletter{background:linear-gradient(135deg,var(--blue-50),var(--teal-50));border:1px solid #D3E6EF;border-radius:24px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.newsletter h2{margin-bottom:.3em}
.nl-form{display:flex;gap:10px;flex-wrap:wrap}
.nl-form input{flex:1;min-width:220px;padding:15px 18px;border-radius:999px;border:1.5px solid #C9D8EA;font:inherit;font-size:1rem;background:#fff}
.nl-form input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(26,111,224,.15)}
.nl-msg{font-size:.88rem;color:var(--muted);margin-top:10px;width:100%}
@media (max-width:820px){.newsletter{grid-template-columns:1fr;padding:32px 22px}}

/* faq */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;transition:.15s}
.faq details[open]{box-shadow:var(--shadow);border-color:#CFE0F0}
.faq summary{cursor:pointer;list-style:none;padding:20px 56px 20px 22px;font:700 1.04rem/1.4 var(--font-head);color:var(--navy);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--blue);font-weight:500}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 22px 20px;color:#3B4B5F}

/* footer */
.site-footer{background:#081B33;color:#A9BBD0;padding:64px 0 28px;margin-top:0;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer a{color:#A9BBD0;text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer .brand{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.84rem}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}

/* page header */
.page-hero{padding:64px 0 44px;background:radial-gradient(900px 380px at 90% -30%,#DDF3F2 0,transparent 60%),var(--bg-soft);border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(2rem,4vw,3rem)}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted)}

/* blog index */
.blog-layout{display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:start}
@media (max-width:980px){.blog-layout{grid-template-columns:1fr}}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:26px}
.search{position:relative;flex:1;min-width:240px}
.search input{width:100%;padding:13px 16px 13px 44px;border:1.5px solid #C9D8EA;border-radius:999px;font:inherit;font-size:.98rem}
.search input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(26,111,224,.15)}
.search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font:600 .88rem/1 var(--font-body);color:var(--ink);cursor:pointer;text-decoration:none}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip[aria-pressed=true]{background:var(--navy);border-color:var(--navy);color:#fff}
.sidebar .card{margin-bottom:20px;padding:22px}
.sidebar h3{font-size:1rem}
.cat-list{list-style:none;margin:0;padding:0}
.cat-list li{border-bottom:1px solid var(--line)}
.cat-list li:last-child{border:0}
.cat-list a{display:flex;justify-content:space-between;padding:9px 0;text-decoration:none;color:var(--ink);font-size:.93rem}
.cat-list a:hover{color:var(--blue)}
.cat-list .count{color:var(--muted);font-size:.82rem}
.sub-list{list-style:none;padding:0 0 8px 14px;margin:0}
.sub-list a{padding:5px 0;font-size:.88rem;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:7px}
.tags a{font-size:.8rem;background:var(--bg-soft);border:1px solid var(--line);padding:5px 10px;border-radius:999px;text-decoration:none;color:var(--ink)}
.tags a:hover{border-color:var(--blue);color:var(--blue)}
.pagination{display:flex;gap:6px;justify-content:center;margin-top:44px;flex-wrap:wrap}
.pagination a,.pagination span{min-width:42px;height:42px;display:grid;place-items:center;padding:0 12px;border-radius:10px;border:1px solid var(--line);text-decoration:none;color:var(--ink);font-weight:600;font-size:.92rem;background:#fff}
.pagination a[aria-current=page]{background:var(--blue);color:#fff;border-color:var(--blue)}
.pagination a:hover{border-color:var(--blue)}
.empty{display:none;text-align:center;padding:40px;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}

/* article */
.article-hero{padding:56px 0 34px;background:var(--bg-soft);border-bottom:1px solid var(--line)}
.article-hero h1{font-size:clamp(2rem,4.2vw,3.1rem);max-width:900px}
.article-hero .lead{max-width:780px}
.byline{display:flex;align-items:center;gap:14px;margin-top:26px;flex-wrap:wrap;font-size:.92rem;color:var(--muted)}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;display:grid;place-items:center;font:800 1rem/1 var(--font-head)}
.byline strong{color:var(--navy);display:block}
.byline .sep{width:4px;height:4px;border-radius:50%;background:#B8C6D6}
.article-layout{display:grid;grid-template-columns:240px minmax(0,720px);gap:60px;justify-content:center;padding:52px 24px 30px;max-width:var(--max);margin:0 auto}
@media (max-width:1000px){.article-layout{grid-template-columns:1fr;gap:0}}
.toc{position:sticky;top:96px;align-self:start;font-size:.9rem}
.toc h2{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:12px}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:7px 0 7px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;line-height:1.4}
.toc a:hover,.toc a.active{color:var(--blue);border-left-color:var(--blue)}
@media (max-width:1000px){.toc{position:static;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:30px}}
.prose{font-family:var(--font-serif);font-size:1.14rem;line-height:1.75;color:#24364B}
.prose h2{font-size:1.7rem;margin:1.8em 0 .6em;scroll-margin-top:96px}
.prose h3{font-size:1.25rem;margin:1.5em 0 .5em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:.4em}
.prose sup a{font-family:var(--font-body);font-size:.72em;text-decoration:none;font-weight:700}
.prose blockquote{margin:1.6em 0;padding:4px 0 4px 22px;border-left:4px solid var(--teal);color:var(--navy);font-style:italic}
.prose figure{margin:2em 0}
.prose figcaption{font-family:var(--font-body);font-size:.86rem;color:var(--muted);margin-top:10px}
.takeaways{font-family:var(--font-body);background:var(--teal-50);border:1px solid #BFE6E3;border-radius:var(--radius);padding:24px 26px;margin:0 0 2em}
.takeaways h2{font-size:1.05rem!important;margin:0 0 12px!important;display:flex;align-items:center;gap:8px;color:#0B6E6D}
.takeaways ul{margin:0;padding-left:0;list-style:none;display:grid;gap:10px;font-size:1rem;line-height:1.55}
.takeaways li{display:grid;grid-template-columns:22px 1fr;gap:8px;margin:0}
.takeaways li::before{content:"✓";color:var(--teal);font-weight:800}
.callout{font-family:var(--font-body);font-size:.98rem;background:var(--blue-50);border-radius:12px;padding:18px 20px;margin:1.6em 0;line-height:1.6}
.callout.warn{background:var(--warn-50)}
.refs{font-family:var(--font-body);border-top:1px solid var(--line);margin-top:3em;padding-top:1.4em}
.refs h2{font-size:1.25rem;margin-top:0}
.refs ol{font-size:.9rem;color:var(--muted);padding-left:1.4em}
.refs li{margin-bottom:.7em}
.author-box{display:grid;grid-template-columns:64px 1fr;gap:18px;font-family:var(--font-body);background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-top:2.4em;font-size:.95rem}
.author-box .avatar{width:64px;height:64px;font-size:1.3rem}
.share{display:flex;gap:8px;flex-wrap:wrap;font-family:var(--font-body);margin-top:2em;align-items:center;font-size:.9rem;color:var(--muted)}
.article-tags{font-family:var(--font-body);margin-top:1.6em}

/* research library */
.filters{display:grid;grid-template-columns:repeat(4,1fr) auto;gap:12px;align-items:end;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:26px}
.filters label{display:block;font:700 .78rem/1 var(--font-head);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:8px}
.filters select{width:100%;padding:11px 12px;border:1.5px solid #C9D8EA;border-radius:10px;font:inherit;font-size:.95rem;background:#fff;color:var(--ink)}
@media (max-width:900px){.filters{grid-template-columns:1fr 1fr}.filters .btn{grid-column:1/-1;justify-content:center}}
@media (max-width:520px){.filters{grid-template-columns:1fr}}
.study{display:grid;grid-template-columns:1fr auto;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:14px}
.study h3{font-size:1.08rem;margin-bottom:6px}
.study p{font-size:.92rem;color:var(--muted);margin-bottom:12px}
.example-badge{display:inline-block;font:800 .68rem/1 var(--font-head);letter-spacing:.1em;text-transform:uppercase;color:var(--warn);background:var(--warn-50);border:1px dashed #F2C48A;padding:5px 8px;border-radius:6px;margin-bottom:10px}
.pills{display:flex;gap:6px;flex-wrap:wrap}
.pill{font-size:.78rem;font-weight:600;padding:5px 10px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);color:var(--ink)}
.pill.o{background:var(--teal-50);border-color:#BFE6E3;color:#0B6E6D}
.study .side{text-align:right;font-size:.85rem;color:var(--muted);white-space:nowrap}
@media (max-width:640px){.study{grid-template-columns:1fr}.study .side{text-align:left}}
.results-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-size:.92rem;color:var(--muted);flex-wrap:wrap;gap:8px}
.banner{background:var(--warn-50);border:1px solid #F4D3A6;border-radius:12px;padding:14px 18px;font-size:.92rem;color:#7A4A0A;margin-bottom:22px}

/* guide */
.guide-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;max-width:var(--max);margin:0 auto;padding:52px 24px}
@media (max-width:1000px){.guide-layout{grid-template-columns:1fr;gap:0}}
.guide h2{scroll-margin-top:96px;margin-top:1.6em}
.guide h2:first-child{margin-top:0}
.use-table{width:100%;border-collapse:collapse;font-size:.94rem;margin:1em 0 1.6em}
.use-table th,.use-table td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.use-table thead th{background:var(--bg-soft);font-family:var(--font-head);color:var(--navy)}
.do-dont{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:1em 0 1.6em}
@media (max-width:700px){.do-dont{grid-template-columns:1fr}}
.do-dont .card ul{padding-left:1.1em;margin:0}
.do-dont .card li{margin-bottom:.4em}
.do h3{color:#0B7F7E}.dont h3{color:#B42318}
.mt0{margin-top:0}.center{text-align:center}
.prose-sans{max-width:760px}
.eyebrow svg,.takeaways h2 svg,.byline svg,.callout svg{width:18px;height:18px;display:inline-block;flex:none}
.callout svg{vertical-align:-3px;margin-right:6px;color:var(--warn)}
[hidden]{display:none!important}
.explainer>*,.safety>*,.hero-grid>*,.research-teaser>*,.newsletter>*,.blog-layout>*,.guide-layout>*{min-width:0}
@media (max-width:560px){.ph-zone{grid-template-columns:1fr}.ppe{grid-template-columns:1fr}.cite{white-space:normal}}
.brand b span{color:var(--teal);font-weight:700}
.brand>span{display:none}
.spectrum{grid-template-columns:repeat(3,1fr)}
.org{display:grid;grid-template-columns:54px 1fr;column-gap:16px;padding:22px}
.org .ico{grid-row:span 4;margin:0}
.org .lvl{max-width:220px}
@media (max-width:1080px){.spectrum{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){
  .spectrum{grid-template-columns:1fr}
  .resist-bar{justify-content:space-between}.resist-bar .track{order:3;flex-basis:100%}
  .compare tbody th{position:sticky;left:0;background:#fff;z-index:1;width:118px;min-width:118px;box-shadow:1px 0 0 var(--line)}
  .compare thead th:first-child{position:sticky;left:0;z-index:2}
  .compare td{min-width:175px}
  table.compare{min-width:0}
}
.scroll-hint{display:none;font-size:.85rem;color:var(--muted);margin:0 0 10px}
@media (max-width:900px){.scroll-hint{display:block}}
@media (max-width:640px){.byline .sep{display:none}.byline{gap:10px 14px}}
/* ---- comparison tables ---- */
.r{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;font-size:.78rem;font-weight:800;flex:none;line-height:1}
.r-g{background:#D1FAE5;color:#047857}.r-m{background:#FEF3C7;color:#B45309}.r-l{background:#FEE2E2;color:#B42318}
.compare td{line-height:1.45}
.compare td>.r+span{margin-left:8px}
.compare td:has(.r){}
.compare td .r{vertical-align:middle;margin-right:2px}
.legend .r{width:18px;height:18px;font-size:.66rem;margin-right:4px;vertical-align:-3px}
table.compact{min-width:860px}
.compact td{text-align:center}
.compact td .r{width:28px;height:28px;font-size:.95rem}
.compact thead th{text-align:center;font-size:.84rem}
.compact thead th:first-child{text-align:left}
.compact tbody th{width:200px}
.compact th:first-child,.master .stick,.vs tbody th{position:sticky;left:0;z-index:1;background:#fff;box-shadow:1px 0 0 var(--line)}
.compact thead th:first-child,.master thead .stick{background:var(--bg-soft);z-index:2}
table.master{min-width:2300px;font-size:.86rem}
.master th,.master td{padding:12px 12px}
.master .stick{min-width:200px;max-width:200px}
.master tr.grp th{font:800 .7rem/1 var(--font-head);text-transform:uppercase;letter-spacing:.1em;color:var(--teal);background:#fff;border-bottom:1px solid var(--line);text-align:left;padding:10px 12px}
.master tr.grp th:first-child{position:sticky;left:0;z-index:2}
.master thead th{vertical-align:bottom}
.sort{all:unset;cursor:pointer;font:700 .82rem/1.3 var(--font-head);color:var(--navy);display:inline-block}
.sort:hover{color:var(--blue)}.sort:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:4px}
th[aria-sort=ascending] .sort,th[aria-sort=descending] .sort{color:var(--blue)}
.master tr.hocl-row th,.master tr.hocl-row td{background:#F1FAFA}
.master tr.hocl-row .stick{background:#E3F5F4}
.master td{min-width:130px}
.master-head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.view-toggle{display:flex;gap:6px}
.dcards{display:none;gap:12px}
.master-view[data-view=cards] .master-wrap{display:none}
.master-view[data-view=cards] .dcards{display:grid}
.dcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.dcard summary{cursor:pointer;list-style:none;padding:16px 18px;display:flex;justify-content:space-between;gap:10px;font:700 1rem/1.3 var(--font-head);color:var(--navy)}
.dcard summary::-webkit-details-marker{display:none}
.dcard .fav{font-size:.8rem;color:var(--muted);font-weight:600;white-space:nowrap}
.hocl-card{border-color:var(--teal);box-shadow:0 0 0 2px var(--teal-50)}
.dcard dl{margin:0;padding:0 18px 14px;display:grid;gap:0}
.dcard dl>div{display:grid;grid-template-columns:42% 1fr;gap:10px;padding:9px 0;border-top:1px solid var(--line);font-size:.9rem}
.dcard dt{color:var(--muted);font-weight:600}
.dcard dd{margin:0;display:flex;gap:8px;align-items:flex-start}
.vs-section{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;margin-bottom:24px}
.vs-head{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.vs-head h2{font-size:1.5rem;margin:0}
.adv{font-size:.95rem;background:var(--teal-50);border-radius:10px;padding:12px 14px}
table.vs{min-width:0;width:100%}
.vs tbody th{width:28%}
.vs td{width:36%}
.vs-wrap{box-shadow:none}
@media (max-width:640px){
  .master-view[data-view=table] .master-wrap{display:block}
  .vs-section{padding:20px 16px}
  /* stacked rows for one-vs-one tables */
  table.vs,table.vs tbody,table.vs tr,table.vs th,table.vs td{display:block;width:auto}
  table.vs thead{position:absolute;left:-9999px}
  table.vs tr{border-bottom:1px solid var(--line);padding:12px 14px}
  table.vs tbody th{position:static;box-shadow:none;padding:0 0 8px;border:0;width:auto}
  table.vs td{border:0;padding:6px 0;display:grid;grid-template-columns:110px 1fr;gap:8px;min-width:0;background:none!important}
  table.vs td::before{content:attr(data-label);font:700 .78rem/1.4 var(--font-head);color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
  table.vs td.hocl::before{color:#0B7F7E}
  table.vs td>span:not(.r){grid-column:2}
  table.vs td .r{display:none}
  .compact tbody th{width:130px;min-width:130px}
  .compact td{min-width:64px!important}
}
@media (max-width:1040px){
  .menu-btn{display:grid;place-items:center}
  .nav-links{display:none;position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 18px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 12px}
  .nav-cta{margin:8px 0 0}
  .nav-cta .btn{width:100%;justify-content:center}
}
.compare td{position:relative}
/* source links */
.srcs{font-family:var(--font-body);font-size:.78em;color:var(--muted);white-space:normal}
a.src{color:var(--blue);text-decoration:none;border-bottom:1px dotted currentColor;font-weight:600}
a.src:hover{border-bottom-style:solid}
.compare .srcs{display:inline;font-size:.82em}
.research-teaser .srcs a, .research-teaser a.src{color:#7DD3FC}
/* study cards */
.filters.filters5{grid-template-columns:repeat(5,1fr) auto}
@media (max-width:1100px){.filters.filters5{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.filters.filters5{grid-template-columns:1fr 1fr}}
.find{display:inline-block;font:800 .68rem/1 var(--font-head);letter-spacing:.08em;text-transform:uppercase;padding:5px 8px;border-radius:6px;margin-bottom:10px}
.find-supports{background:#D1FAE5;color:#047857}.find-mixed{background:#FEF3C7;color:#92400E}.find-limits{background:#FEE2E2;color:#B42318}
.cite-line{font-size:.82rem!important;color:var(--muted);font-style:italic}
.study-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 12px;padding:12px;background:var(--bg-soft);border-radius:10px}
.study-facts dt{font:700 .7rem/1.2 var(--font-head);text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.study-facts dd{margin:3px 0 0;font-size:.88rem;color:var(--navy);font-weight:600}
@media (max-width:700px){.study-facts{grid-template-columns:1fr 1fr}}
.study .side a{font-weight:600}
.study p strong{color:var(--navy)}
.refs li{word-break:break-word}
/* Judge revisions */
.r-n{background:#EEF2F6;color:#64748B}
.funding-note{font-size:.86rem;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:14px 0 16px;max-width:820px}
.table-note{font-size:.85rem;color:var(--muted);margin:12px 0 0}
.th-note{display:block;font:600 .68rem/1.2 var(--font-body);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:4px}
.nosort{font:700 .82rem/1.3 var(--font-head);color:var(--navy)}
.key-diffs{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:16px 0 20px;font-family:var(--font-body)}
.key-diffs h3{margin:0 0 10px;font-size:1.05rem}
.kd-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.kd-grid h4{font:700 .8rem/1.3 var(--font-head);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 6px}
.kd-grid ul{margin:0;padding-left:1.1em;font-size:.95rem}
@media (max-width:640px){.kd-grid{grid-template-columns:1fr}}
.etype{display:inline-block;font-size:.72rem;font-weight:700;color:#0B6E6D;background:var(--teal-50);border-radius:999px;padding:1px 8px;margin-left:4px}
.affil{color:var(--warn);font-weight:600}
/* How we rate (published ratings method) */
.method{background:var(--soft,#F5F8FB);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin:0 0 34px}
.method h2{margin-top:0}
.method ul{padding-left:1.2em;margin:.6em 0 0}
.method li{margin:.45em 0}