/* Layout: brand-led corporate site after bioshield.swiss — white header, deep-teal hero bands,
   magenta→violet "label bar" as the one bold accent, generous white sections between. */
:root{
  --teal:#009899;          /* Swiss Bio Shield teal (parent site) */
  --teal-deep:#0c3a3c;     /* hero / footer ground */
  --teal-ink:#06292a;
  --magenta:#e6007e;       /* SeptiGuard skin colour */
  --violet:#6b548e;        /* SeptiGuard surface colour */
  --ink:#1b2526;
  --muted:#5b6b6c;
  --line:#dfe8e8;
  --mist:#f2f7f7;
  --paper:#ffffff;
  --label-bar:linear-gradient(90deg,var(--magenta),#b0359a 55%,var(--violet));
  --f-display:"Montserrat",Helvetica,Arial,sans-serif;
  --f-body:"Open Sans",Helvetica,Arial,sans-serif;
  --wrap:1180px;
  --radius:14px;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--f-body);-webkit-font-smoothing:antialiased}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--magenta);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.15;margin:0;text-wrap:balance;color:inherit}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,32px)}
.eyebrow{font:700 .78rem/1 var(--f-display);letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.on-dark .eyebrow{color:#7fd3d3}

/* top strip + header */
.strip{background:var(--teal);color:#fff;font-size:.82rem}
.strip .wrap{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:space-between;padding-block:7px}
.strip span{white-space:nowrap}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand img{height:54px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{font:600 .92rem var(--f-display);color:var(--ink);text-decoration:none;padding:9px 12px;border-radius:999px}
.nav a:hover{background:var(--mist)}
.nav a[aria-current="page"]{color:var(--teal)}
.nav .btn{margin-left:8px}
.menu-toggle{display:none;background:var(--teal-deep);color:#fff;border:0;width:46px;height:46px;border-radius:50%;cursor:pointer}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{display:block;width:20px;height:2px;background:#fff;margin:auto;position:relative;content:""}
.menu-toggle span::before{position:absolute;top:-6px}.menu-toggle span::after{position:absolute;top:6px}
@media (max-width:1040px){
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:10px 16px 18px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 10px}
  .nav .btn{margin:6px 0 0;text-align:center}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:700 .9rem var(--f-display);letter-spacing:.04em;text-transform:uppercase;text-decoration:none;padding:13px 24px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:#00807f}
.btn-ghost{border-color:#fff;color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-dark{background:var(--teal-deep);color:#fff}
.nav .btn-primary{color:#fff;padding:10px 18px}
.nav .btn-primary:hover{background:#00807f}

/* hero */
.hero{background:radial-gradient(120% 90% at 85% 10%,#17696a 0%,var(--teal-deep) 55%,var(--teal-ink) 100%);color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.25fr);gap:clamp(28px,4vw,56px);align-items:center;padding-block:clamp(44px,7vw,88px)}
.hero h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:500;letter-spacing:.01em;text-transform:uppercase}
.hero h1 strong{font-weight:800;display:block}
.hero .lead{font-size:clamp(1.02rem,1.5vw,1.18rem);color:#d6ecec;max-width:34em;margin-top:18px}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-copy{min-width:0}
.video-card{position:relative;min-width:0}
.video-card video{width:100%;aspect-ratio:16/9;background:#000;border-radius:var(--radius);box-shadow:0 30px 60px rgba(0,0,0,.35)}
.video-card figcaption{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:12px;font-size:.85rem;color:#a9d3d3}
.label-bar{height:6px;background:var(--label-bar)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}

/* claim row */
.claims{background:var(--paper);border-bottom:1px solid var(--line)}
.claims ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.claims li{display:flex;gap:14px;align-items:center;padding:22px 18px;border-right:1px solid var(--line)}
.claims li:last-child{border-right:0}
.claims b{display:block;font:800 1.05rem var(--f-display);color:var(--teal-deep)}
.claims small{color:var(--muted);font-size:.85rem;line-height:1.35;display:block}
.claims svg{flex:none;width:38px;height:38px;color:var(--teal)}
@media (max-width:900px){.claims ul{grid-template-columns:repeat(2,minmax(0,1fr))}.claims li:nth-child(2){border-right:0}.claims li:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:480px){.claims ul{grid-template-columns:1fr}.claims li{border-right:0;border-bottom:1px solid var(--line)}}

/* sections */
.section{padding-block:clamp(56px,8vw,104px)}
.section.tint{background:var(--mist)}
.section.dark{background:var(--teal-deep);color:#fff}
.section-head{max-width:46rem;display:grid;gap:12px;margin-bottom:clamp(28px,4vw,48px)}
.section-head h2{font-size:clamp(1.6rem,3vw,2.35rem);font-weight:800;color:var(--teal-deep)}
.dark .section-head h2{color:#fff}
.section-head p{color:var(--muted);font-size:1.05rem}
.dark .section-head p{color:#c5e2e2}

/* product spotlight */
.spot{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(28px,4vw,44px)}
.spot .spot-copy{max-width:46rem}
.spot img{border-radius:var(--radius);width:100%}
.spot-copy{min-width:0;display:grid;gap:18px}
.product-name{font:800 clamp(1.8rem,3.4vw,2.6rem)/1.05 var(--f-display);color:var(--teal-deep)}
.product-name span{display:block;font-size:.55em;letter-spacing:.08em;text-transform:uppercase;background:var(--label-bar);-webkit-background-clip:text;background-clip:text;color:transparent;margin-top:8px}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.ticks li{display:flex;gap:12px;align-items:flex-start}
.ticks li::before{content:"";flex:none;width:20px;height:20px;margin-top:3px;border-radius:50%;background:var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3L15 7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.sizes{display:flex;flex-wrap:wrap;gap:8px}
.sizes span{font:700 .88rem var(--f-display);font-variant-numeric:tabular-nums;border:1.5px solid var(--line);border-radius:999px;padding:6px 14px;color:var(--teal-deep);background:#fff}
@media (max-width:900px){.spot{grid-template-columns:1fr}}

/* use cases */
.uses{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.use{margin:0;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.use img{width:100%;aspect-ratio:16/10;object-fit:cover}
.use figcaption{padding:16px 18px 20px;display:grid;gap:4px}
.use b{font:700 1.02rem var(--f-display);color:var(--teal-deep)}
.use span{color:var(--muted);font-size:.93rem}
@media (max-width:900px){.uses{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.uses{grid-template-columns:1fr}}

/* science band */
.science{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:center}
.formula{font:800 clamp(3.4rem,9vw,6.5rem)/1 var(--f-display);letter-spacing:-.02em;background:var(--label-bar);-webkit-background-clip:text;background-clip:text;color:transparent}
.formula-note{color:#c5e2e2;margin-top:10px;font-size:.95rem}
.science-copy{display:grid;gap:16px;min-width:0}
.science-copy p{color:#d9eeee}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:8px}
.stat-row div{border-top:2px solid rgba(255,255,255,.25);padding-top:12px}
.stat-row b{display:block;font:800 1.6rem var(--f-display);font-variant-numeric:tabular-nums}
.stat-row small{color:#a9d3d3;font-size:.82rem}
@media (max-width:900px){.science{grid-template-columns:1fr}}

/* value cards */
.values{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.value{background:#fff;border-radius:var(--radius);padding:26px 22px;box-shadow:0 8px 28px rgba(12,58,60,.07);display:grid;gap:10px;align-content:start}
.value svg{width:44px;height:44px;color:var(--teal)}
.value h3{font-size:1.08rem;color:var(--teal-deep)}
.value p{color:var(--muted);font-size:.93rem}
@media (max-width:900px){.values{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.values{grid-template-columns:1fr}}

/* CTA band */
.cta{background:var(--label-bar);color:#fff}
.cta .wrap{display:flex;flex-wrap:wrap;gap:20px 40px;align-items:center;justify-content:space-between;padding-block:44px}
.cta h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800}
.cta p{color:#fbe6f3;margin-top:6px}
.cta .btn{background:#fff;color:var(--teal-deep)}

/* page hero (sub pages) */
.page-hero{background:radial-gradient(120% 120% at 90% 0%,#17696a 0%,var(--teal-deep) 60%,var(--teal-ink) 100%);color:#fff}
.page-hero .wrap{padding-block:clamp(44px,6vw,76px);display:grid;gap:14px}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:800}
.page-hero p{color:#d6ecec;max-width:42em;font-size:1.08rem}
.crumbs{font-size:.85rem;color:#a9d3d3}
.crumbs a{color:#a9d3d3}

/* product detail */
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,48px);align-items:start}
.two > *{min-width:0}
@media (max-width:860px){.two{grid-template-columns:1fr}}
.panel{border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,3vw,32px);background:#fff;display:grid;gap:12px}
.panel h3{font-size:1.2rem;color:var(--teal-deep);display:flex;align-items:center;gap:10px}
.panel h3 i{width:12px;height:12px;border-radius:3px;display:inline-block}
.panel p{color:var(--ink)}
.panel .meta{color:var(--muted);font-size:.9rem}
.label-shot{border-radius:var(--radius);border:1px solid var(--line);background:#fff;width:100%}
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec th,.spec td{text-align:left;padding:12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:38%;font:700 .82rem var(--f-display);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-right:16px}
.size-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
@media (max-width:900px){.size-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:520px){.size-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.size{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;display:grid;grid-template-rows:auto 1fr}
.size img{width:100%;aspect-ratio:1}
.size figcaption{padding:12px 14px 16px;display:grid;gap:4px;align-content:start}
.scale-note{margin-top:14px;color:var(--muted);font-size:.88rem}
.size b{font:800 1.4rem var(--f-display);color:var(--teal-deep);font-variant-numeric:tabular-nums}
.size small{color:var(--muted);font-size:.84rem;line-height:1.35}
.faq{display:grid;gap:10px;max-width:52rem}
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff}
.faq summary{cursor:pointer;list-style:none;padding:18px 52px 18px 20px;font:700 1rem var(--f-display);color:var(--teal-deep);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--teal)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 20px 20px;color:var(--muted)}

/* about */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0;border-top:1px solid var(--line)}
.facts div{padding:18px 18px 18px 0;border-bottom:1px solid var(--line)}
.facts dt{font:700 .78rem var(--f-display);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.facts dd{margin:6px 0 0;font-weight:600}
.prose{display:grid;gap:16px;max-width:40rem}
.prose p{color:var(--ink)}
.sectors{display:flex;flex-wrap:wrap;gap:8px}
.sectors span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:.9rem}
.rounded{border-radius:var(--radius);width:100%}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;display:grid;gap:8px;align-content:start}
.contact-card h3{font-size:1.05rem;color:var(--teal-deep)}
.contact-card .big{font:700 1.15rem var(--f-display);color:var(--ink);word-break:break-word;font-variant-numeric:tabular-nums}
.contact-card p{color:var(--muted);font-size:.95rem}
.copy{justify-self:start;background:var(--mist);border:1px solid var(--line);color:var(--teal-deep);font:600 .82rem var(--f-display);border-radius:999px;padding:7px 14px;cursor:pointer}
.copy:hover{background:#e3efef}

/* footer */
.site-footer{background:var(--teal-ink);color:#c5dede;font-size:.93rem}
.site-footer .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px;padding-block:56px 28px}
.site-footer img.logo{height:70px;width:auto}
.site-footer h4{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:12px}
.site-footer a{color:#c5dede;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer .qr{width:96px;border-radius:8px;background:#fff;padding:6px}
.legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.82rem;color:#8fb6b6}
@media (max-width:900px){.site-footer .wrap{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.site-footer .wrap{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* social icons */
.social{display:inline-flex;gap:10px;align-items:center}
.social a{display:inline-flex;width:22px;height:22px;color:#fff;opacity:.9}
.social a:hover{opacity:1}
.social svg{width:100%;height:100%;fill:currentColor}
.social-lg a{width:38px;height:38px;padding:8px;border-radius:50%;background:rgba(255,255,255,.1)}
.social-lg a:hover{background:var(--teal)}
.social-ink a{color:#fff;background:var(--teal-deep)}
.social-ink a:hover{background:var(--teal)}

/* announcement */
.announce{background:var(--label-bar);color:#fff;font:600 .92rem var(--f-display)}
.announce .wrap{display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:center;align-items:center;padding-block:9px;text-align:center}
.announce a{color:#fff;font-weight:800}
.row-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;max-width:none}
.empty{color:var(--muted);padding:12px 0}
.btn-sm{padding:9px 16px;font-size:.78rem}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.chip{font:600 .88rem var(--f-display);border:1.5px solid var(--line);background:#fff;color:var(--teal-deep);border-radius:999px;padding:8px 16px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--teal-deep);border-color:var(--teal-deep);color:#fff}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:900px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.news-grid{grid-template-columns:1fr}}
.news-card{display:grid;grid-template-rows:auto 1fr;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .15s ease,box-shadow .15s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(12,58,60,.1)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:18px 20px 22px;display:grid;gap:8px;align-content:start}
.news-body h3{font-size:1.12rem;color:var(--teal-deep)}
.news-meta{font:700 .74rem var(--f-display);letter-spacing:.1em;text-transform:uppercase;color:var(--teal)}
.news-excerpt{color:var(--muted);font-size:.94rem}
.article{max-width:46rem;display:grid;gap:18px}
.article h1{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;color:var(--teal-deep)}
.lead-dark{font-size:1.12rem;color:var(--muted)}
.article-img{border-radius:var(--radius);width:100%}
.article-text{display:grid;gap:14px}