:root{
  --bg:#FAF5EE; --surface:#FFFDF9; --surface-2:#F3EADF; --line:#E6D9C8;
  --text:#2A211C; --muted:#6B5D53; --accent:#B4552F; --accent-ink:#fff; --accent-soft:#F5E1D5;
  --olive:#5F7043; --olive-soft:#E6EBD9; --gold:#C9922E; --gold-soft:#F6E8CC;
  --shadow:0 1px 2px rgba(60,40,20,.06),0 8px 24px rgba(60,40,20,.07);
  --radius:18px; --maxw:1160px;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#1B1613; --surface:#241D19; --surface-2:#2E2520; --line:#3D322B;
  --text:#F2E8DE; --muted:#BCAA9C; --accent:#E07F55; --accent-ink:#1B1613; --accent-soft:#3F2A20;
  --olive:#A9BA8A; --olive-soft:#2D3325; --gold:#E3B45C; --gold-soft:#3A2F1C;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); color-scheme:dark;}}
:root[data-theme="dark"]{
  --bg:#1B1613; --surface:#241D19; --surface-2:#2E2520; --line:#3D322B;
  --text:#F2E8DE; --muted:#BCAA9C; --accent:#E07F55; --accent-ink:#1B1613; --accent-soft:#3F2A20;
  --olive:#A9BA8A; --olive-soft:#2D3325; --gold:#E3B45C; --gold-soft:#3A2F1C;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); color-scheme:dark;}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
img,svg{max-width:100%}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)} h2{font-size:clamp(1.55rem,3vw,2.2rem)} h3{font-size:1.25rem}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--surface);padding:8px 12px;border-radius:8px}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:6px}

/* Header */
.topbar{background:var(--olive);color:#fff;font-size:.86rem}
:root[data-theme="dark"] .topbar{color:var(--bg)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .topbar{color:var(--bg)}}
.topbar .wrap{display:flex;gap:16px;justify-content:space-between;align-items:center;min-height:34px;flex-wrap:wrap}
.topbar a{color:inherit}
header.site{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr{display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-family:var(--serif);font-weight:600;font-size:1.2rem;white-space:nowrap}
.brand .mark{width:36px;height:36px;border-radius:50%;background:var(--accent);display:grid;place-items:center;color:var(--accent-ink)}
nav.main{display:flex;gap:2px;margin-left:auto;flex-wrap:nowrap}
nav.main a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:999px;font-weight:500;font-size:.93rem;white-space:nowrap}
nav.main a:hover{background:var(--surface-2)}
nav.main a.active{background:var(--accent-soft);color:var(--accent)}
.hdr-tools{display:flex;gap:8px;align-items:center}
.langs{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--surface)}
.langs select{border:0;background:transparent;color:var(--text);font:600 .8rem var(--sans);padding:7px 26px 7px 12px;cursor:pointer;appearance:none;-webkit-appearance:none;max-width:150px;text-overflow:ellipsis}
.langs{position:relative}
.langs::after{content:"";position:absolute;right:10px;top:50%;width:6px;height:6px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.iconbtn{border:1px solid var(--line);background:var(--surface);color:var(--text);width:38px;height:38px;border-radius:50%;display:grid;place-items:center;cursor:pointer}
.menu-btn{display:none}
@media (max-width:1240px){
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);flex-direction:column;padding:12px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  nav.main.open{display:flex}
  nav.main a{padding:12px 14px}
  .menu-btn{display:grid;margin-left:auto}
  .hdr-tools{margin-left:0}
}
@media (max-width:520px){.brand span.t{display:none}.langs select{max-width:92px;padding:7px 22px 7px 8px}}

/* Search bar */
.searchbar{display:flex;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 6px 6px 18px;box-shadow:var(--shadow);align-items:center}
.searchbar input{flex:1;border:0;background:transparent;color:var(--text);font:inherit;min-width:0;outline:none;padding:8px 0}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;padding:12px 20px;font:600 .98rem var(--sans);cursor:pointer;text-decoration:none;transition:transform .15s ease,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.soft{background:var(--olive-soft);color:var(--olive)}
.btn.sm{padding:8px 14px;font-size:.9rem}

/* Hero */
.hero{padding:64px 0 40px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.kicker{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--olive);background:var(--olive-soft);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.hero p.lead{font-size:1.18rem;color:var(--muted);max-width:40ch}
.hero .ctas{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 26px}
.hero-art{aspect-ratio:1;max-width:440px;justify-self:center;width:100%}
.stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px}
.stats b{font-family:var(--serif);font-size:1.9rem;display:block;color:var(--accent)}
.stats span{color:var(--muted);font-size:.92rem}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}.hero-art{max-width:300px;order:-1}.hero{padding-top:28px}}

/* Sections */
section.block{padding:48px 0}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.sec-head p{margin:0;color:var(--muted);max-width:60ch}
.band{background:var(--surface-2)}
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.g4{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column}
a.card{text-decoration:none;color:var(--text);transition:transform .18s ease,border-color .18s}
a.card:hover{transform:translateY(-3px);border-color:var(--accent)}
.card h3{margin-bottom:.35em}
.card p{color:var(--muted);font-size:.97rem}
.card .meta{margin-top:auto;font-size:.85rem;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.goal-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);margin-bottom:14px}
.goal-card:nth-child(3n+2) .goal-ico{background:var(--olive-soft);color:var(--olive)}
.goal-card:nth-child(3n+3) .goal-ico{background:var(--gold-soft);color:var(--gold)}
.chip{display:inline-block;font-size:.78rem;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.chip.t-review{background:var(--olive-soft);color:var(--olive);border-color:transparent}
.chip.t-human{background:var(--accent-soft);color:var(--accent);border-color:transparent}
.chip.t-case{background:var(--gold-soft);color:var(--gold);border-color:transparent}
.art-thumb{height:120px;border-radius:12px;margin:-6px -6px 16px;background:var(--surface-2);overflow:hidden}

/* Article */
.article{max-width:740px;margin:0 auto;padding:40px 0 20px}
.article .lead{font-size:1.2rem;color:var(--muted)}
.article h2{font-size:1.5rem;margin-top:1.6em}
.article ul{padding-left:1.2em}.article li{margin:.35em 0}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.note{background:var(--gold-soft);border-left:4px solid var(--gold);padding:14px 18px;border-radius:12px;font-size:.95rem;margin:22px 0}
.sources{margin:26px 0;padding-top:14px;border-top:1px solid var(--line)}.sources h3{font-size:1rem;margin:0 0 8px}.sources ul{margin:0;padding-left:1.2em}.sources li{margin:.3em 0}.sources a{color:var(--accent);font-weight:600}
.ingr{margin:10px 0;font-size:.88rem}.ingr b,.ingr h3{display:block;margin-bottom:4px;color:var(--text);font-size:.95rem}.ingr ul{margin:0;padding-left:1.1em;color:var(--muted)}.ingr li{margin:.15em 0}.ingr li b{color:var(--text)}
.modal-overlay{position:fixed;inset:0;background:rgba(20,16,12,.55);display:none;align-items:flex-start;justify-content:center;padding:5vh 16px;overflow-y:auto;z-index:200}
.modal-overlay.open{display:flex}
.modal-card{position:relative;background:var(--surface);border-radius:var(--radius,18px);max-width:640px;width:100%;box-shadow:var(--shadow);animation:modalIn .18s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.modal-close{position:absolute;top:10px;right:12px;border:0;background:var(--surface-2);color:var(--text);width:34px;height:34px;border-radius:50%;font-size:1.3rem;line-height:1;cursor:pointer;z-index:2}
.modal-body{padding:8px 26px 26px}.modal-body h2{margin:.2em 0}
.pguide{margin-top:40px;padding:32px;border-radius:var(--radius,18px);background:linear-gradient(160deg,var(--accent-soft),var(--surface) 65%);border:1px solid var(--line)}
.pguide h2{margin:0 0 6px;font-size:1.5rem}.pguide>p{margin:0 0 22px;color:var(--muted);max-width:60ch}
.pguide-list{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:16px}
.pguide-list li{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.pguide-n{flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--serif)}
.pguide-list h3{margin:0 0 4px;font-size:1.02rem}.pguide-list p{margin:0;color:var(--muted);font-size:.93rem}
.pguide-cta{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.btn.lg{padding:14px 28px;font-size:1.02rem}
.pguide-note{margin:20px 0 0;font-size:.88rem;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px}
.sci-featured{margin:18px 0 22px;display:grid;gap:14px}
.sci-feat-card{display:block;border:1.5px solid var(--accent);border-radius:16px;padding:20px 22px;background:var(--accent-soft);text-decoration:none;color:var(--text)}
.sci-feat-card h3{margin:.4em 0 .3em;font-size:1.2rem;color:var(--text)}
.sci-feat-card p{margin:0 0 10px;color:var(--muted)}
.sci-feat-card .meta{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent)}

/* Science */
.filters{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:10px;margin-bottom:10px}
.filters input,.filters select,.form input,.form select,.form textarea{width:100%;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 14px}
.yearrow{display:flex;gap:6px;align-items:center}
.pills{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 18px}
.pill{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:7px 13px;font:500 .9rem var(--sans);cursor:pointer}
.pill[aria-pressed="true"]{background:var(--olive);color:#fff;border-color:var(--olive)}
@media (max-width:760px){.filters{grid-template-columns:1fr 1fr}.filters .full,.filters .yearrow{grid-column:1/-1}.yearrow select{flex:1}}
.study{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-bottom:14px}
.study h3{font-family:var(--sans);font-size:1.05rem;font-weight:700;margin-bottom:.3em}
.study .cite{font-size:.9rem;color:var(--muted);margin-bottom:.6em}
.study .row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:8px}
.count{color:var(--muted);font-size:.92rem;margin-bottom:12px}
mark{background:var(--gold-soft);color:inherit;padding:0 2px;border-radius:3px}

/* Products */
.prod{padding:0;overflow:hidden}
.prod .ph{height:130px;display:grid;place-items:center;position:relative}
.prod .ph.has-img{height:220px;background:#fff!important}
.prod .ph img{max-height:200px;max-width:88%;object-fit:contain}
.prod .ph.has-img svg{display:none}
.prod .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.prod .claims{margin:10px 0 16px;padding:12px 14px;background:var(--olive-soft);border-radius:12px;font-size:.9rem;color:var(--text)}
.prod .claims b{display:block;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--olive);margin-bottom:4px}
.prod .claims ul{margin:0;padding-left:1.1em}
.prod .actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}

/* Goal page */
.goal-hero{padding:40px 0 10px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:760px){.two{grid-template-columns:1fr}}
.list-links a{display:block;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--text);font-weight:600}
.list-links a:hover{color:var(--accent)}
.tips li{margin:.4em 0}

/* Quiz */
.quiz{max-width:720px;margin:0 auto}
.progress{height:6px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin:14px 0 24px}
.progress i{display:block;height:100%;background:var(--accent);transition:width .3s}
.opt{display:block;width:100%;text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:10px;font:500 1rem var(--sans);color:var(--text);cursor:pointer}
.opt:hover{border-color:var(--accent)}
.opt[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}

/* FAQ */
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;padding:0 20px}
details.faq summary{cursor:pointer;padding:18px 0;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
details.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--accent)}
details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--muted);padding-bottom:16px;margin:0}

/* Partner */
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;padding:14px 0 14px 56px;position:relative;border-bottom:1px dashed var(--line)}
.steps li::before{content:counter(s);position:absolute;left:0;top:10px;width:38px;height:38px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-family:var(--serif)}
.idbox{display:inline-flex;gap:10px;align-items:center;background:var(--surface);border:1px dashed var(--accent);border-radius:12px;padding:10px 14px;font-weight:700}
.idbox code{font-size:1.2rem;color:var(--accent)}

/* Form */
.form{display:grid;gap:12px}
.form label{font-weight:600;font-size:.92rem;display:grid;gap:6px}
.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:400}
.form .check input{width:auto;margin-top:5px}
.form .msg{font-weight:600}
.contact-card p{margin:.3em 0}

/* Search results */
.sgroup{margin-bottom:28px}
.sgroup h3{font-family:var(--sans);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.sres{display:block;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--text)}
.sres b{display:block}.sres span{color:var(--muted);font-size:.93rem}

/* Footer */
.disc{background:var(--gold-soft);padding:18px 0;font-size:.92rem}
footer.site{background:var(--surface-2);padding:40px 0 26px;margin-top:0;font-size:.93rem;color:var(--muted)}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
footer a{color:var(--text)}
footer ul{list-style:none;padding:0;margin:0}footer li{margin:.3em 0}
@media (max-width:760px){.fgrid{grid-template-columns:1fr}}
.fbottom{border-top:1px solid var(--line);margin-top:26px;padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.view{animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}