/* Le Sauna Japonais — v6 : structure inspirée d'AdipoXtrem, identité noir / blanc / rouge infrarouge */
:root{
  --noir:#141414; --encre:#1F1F1F; --blanc:#FFFFFF; --pierre:#F4F2EE; --sable:#E9E4DA;
  --rouge:#C1272D; --rouge-f:#A11F25; --gris:#6B6760; --gris-2:#A9A49B;
  --filet:rgba(20,20,20,.10); --filet-clair:rgba(255,255,255,.14);
  --text:"Jost","Futura","Century Gothic","Avenir Next",system-ui,sans-serif;
  --r:22px; --w:1220px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--blanc);color:var(--noir);font:400 17px/1.7 var(--text)}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--rouge);outline-offset:3px}
h1,h2,h3{font-family:var(--text);letter-spacing:-.02em;margin:0 0 .45em;text-wrap:balance}
h1{font-size:clamp(2.5rem,5vw,4.2rem);line-height:1.04;font-weight:600}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);line-height:1.1;font-weight:600}
h2.big{font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.05}
h3{font-size:1.2rem;font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 28px}
@media (max-width:600px){.wrap{padding:0 20px}}
.narrow-c{max-width:860px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;color:#000;padding:8px 12px;z-index:20}
.lead{font-size:1.18rem;line-height:1.7;color:var(--gris);max-width:58ch}
.note,.small{font-size:.86rem;color:var(--gris)}
.muted{color:var(--gris)}
.tag{display:inline-block;font-size:.82rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--rouge);margin-bottom:1.1em}
section{padding:120px 0}
@media (max-width:760px){section{padding:80px 0}}
.soft{background:var(--pierre)}
.dark{background:var(--noir);color:#F2F0EC}
.dark .lead,.dark .note{color:var(--gris-2)}
.dark h2,.dark h3{color:#fff}

/* ----- En-tête ----- */
header.site{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--filet)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:80px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--noir);margin:0}
.brand .mark{width:40px;height:40px}
.wordmark{font:700 .98rem/1 var(--text);letter-spacing:.12em;text-transform:uppercase}
.mainnav ul,.menu ul{list-style:none;margin:0;padding:0;display:flex;gap:30px;align-items:center}
.mainnav a,.menu a{text-decoration:none;font-size:.95rem;font-weight:500;color:var(--noir)}
.mainnav a:hover,.mainnav a[aria-current]{color:var(--rouge)}
.mainnav li:last-child a{background:var(--noir);color:#fff;padding:11px 20px;border-radius:999px}
.mainnav li:last-child a:hover{background:var(--rouge);color:#fff}
.menu{display:none}
@media (max-width:980px){
  .mainnav{display:none}.menu{display:block;position:relative}
  .menu summary{cursor:pointer;list-style:none;border:1px solid var(--filet);border-radius:999px;padding:8px 18px;font-weight:500}
  .menu summary::-webkit-details-marker{display:none}
  .menu ul{position:absolute;right:0;top:50px;flex-direction:column;align-items:stretch;gap:0;background:#fff;border:1px solid var(--filet);border-radius:16px;min-width:250px;overflow:hidden;box-shadow:0 20px 40px rgba(0,0,0,.08)}
  .menu li a{display:block;padding:14px 18px;border-bottom:1px solid var(--filet)}
}

/* ----- Boutons ----- */
.btn{display:inline-block;text-decoration:none;font:600 .95rem/1 var(--text);padding:17px 28px;border-radius:999px;border:1.5px solid var(--noir);background:var(--noir);color:#fff;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.btn:hover{background:var(--rouge);border-color:var(--rouge)}
.btn.line,.btn.ghost{background:transparent;color:var(--noir)}
.btn.line:hover,.btn.ghost:hover{background:var(--noir);color:#fff;border-color:var(--noir)}
.btn.light{background:#fff;color:var(--noir);border-color:#fff}
.btn.light:hover{background:var(--rouge);color:#fff;border-color:var(--rouge)}
.btn.line.light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn.line.light:hover{background:#fff;color:var(--noir)}
.btn.dark{background:var(--noir);color:#fff}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin:1.8em 0 0}
.textlink{text-decoration:none;font-weight:600;border-bottom:1.5px solid var(--rouge);padding-bottom:2px}
.textlink:hover{color:var(--rouge)}

/* ----- Héros ----- */
.hero-split{padding:72px 0 90px;background:linear-gradient(180deg,var(--blanc),var(--pierre))}
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr;gap:40px}}
.prolink{margin-top:1.6em}
.badges{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.badges li{border:1px solid var(--filet);background:#fff;border-radius:999px;padding:8px 16px;font-size:.86rem;color:var(--gris)}
.badges b{color:var(--noir);font-weight:600;margin-right:4px}
.hero-visual{margin:0;position:relative;isolation:isolate}
.hero-visual img{width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:28px;box-shadow:0 40px 80px rgba(20,20,20,.16)}
.hero-visual::before{content:"";position:absolute;width:42%;aspect-ratio:1;right:-6%;top:-8%;border-radius:50%;background:radial-gradient(closest-side,rgba(193,39,45,.28),transparent);z-index:-1;filter:blur(10px)}

/* ----- Bande défilante ----- */
.marquee{background:var(--noir);color:#fff;overflow:hidden;padding:18px 0;white-space:nowrap}
.marquee-track{display:inline-flex;animation:defile 38s linear infinite}
.marquee span{font-weight:500;font-size:1.05rem;letter-spacing:.02em;padding:0 28px;position:relative}
.marquee span::after{content:"";position:absolute;right:-4px;top:50%;width:7px;height:7px;margin-top:-3px;border-radius:50%;background:var(--rouge)}
@keyframes defile{to{transform:translateX(-50%)}}

/* ----- Étapes ----- */
.steps3{list-style:none;counter-reset:s;padding:0;margin:56px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.steps3 li{counter-increment:s;border-top:2px solid var(--noir);padding-top:26px}
.steps3 li::before{content:counter(s);display:block;font-size:3.2rem;font-weight:300;line-height:1;color:var(--rouge);margin-bottom:18px}
.steps3 p{color:var(--gris)}
@media (max-width:860px){.steps3{grid-template-columns:1fr}}

/* ----- Cartes ----- */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
@media (max-width:900px){.cards3{grid-template-columns:1fr}}
.tcard,.model{background:#fff;border-radius:var(--r);padding:34px 30px 30px;display:flex;flex-direction:column;border:1px solid var(--filet)}
.tcard p,.model p{color:var(--gris)}
.tcard h3,.model h3{font-size:1.6rem}
.spec{font-size:.86rem;border-top:1px solid var(--filet);padding-top:14px;margin-top:auto;color:var(--noir)!important}
.tcard .textlink,.model .textlink{align-self:flex-start;margin-top:6px}
.model .note{margin-bottom:1.6em}
.tarif{margin-top:auto;padding-top:16px;border-top:1px solid var(--filet);font-weight:600;color:var(--noir)!important}
.tarif span{display:block;font-weight:400;font-size:.82rem;color:var(--gris);margin-bottom:2px}
.cards3.photos article h3{margin-top:20px}
.cards3.photos p{color:var(--gris)}

/* ----- Appareil ----- */
.stage{margin:40px 0 0;position:relative}
.product{position:relative;border-radius:var(--r);overflow:hidden}
.product img{width:100%}
.pin{position:absolute;width:32px;height:32px;margin:-16px 0 0 -16px;border-radius:50%;border:2px solid #fff;background:var(--rouge);cursor:pointer;padding:0;transition:transform .2s,background .2s;box-shadow:0 0 0 7px rgba(193,39,45,.25)}
.pin span{display:block;width:8px;height:8px;margin:auto;border-radius:50%;background:#fff}
.pin:hover,.pin.is-active{background:var(--noir);transform:scale(1.15)}
.atouts{list-style:none;margin:40px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.atouts li{padding:22px 0 0;border-top:2px solid var(--filet);transition:opacity .3s,border-color .3s}
.atouts h3{font-size:1rem}
.atouts p{font-size:.9rem;line-height:1.6;color:var(--gris);margin:0}
.js .atouts li{opacity:.5}
.js .atouts li.is-active{opacity:1;border-top-color:var(--rouge)}
@media (max-width:980px){.atouts{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.atouts{grid-template-columns:1fr}.js .atouts li{opacity:1}.pin{width:26px;height:26px;margin:-13px 0 0 -13px}}

/* ----- Blocs image / texte ----- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
@media (max-width:980px){.split{grid-template-columns:1fr;gap:48px}}
.rounded{margin:0;overflow:hidden;border-radius:var(--r)}
.rounded img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}
.rounded.tall img{aspect-ratio:4/5}
.figures{list-style:none;padding:0;margin:34px 0 22px;display:grid;gap:22px}
.figures li{display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:start;border-top:1px solid var(--filet-clair);padding-top:22px}
.figures b{font-size:3rem;font-weight:300;line-height:1;color:#fff}
.figures span{color:var(--gris-2);font-size:.98rem}
@media (max-width:560px){.figures li{grid-template-columns:1fr;gap:8px}}
.options{list-style:none;padding:0;margin:34px 0 20px;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.options li{border-top:1px solid var(--filet);padding:18px 0 4px}
.options h3{font-size:1.02rem;margin-bottom:.2em}
.options p{color:var(--gris);font-size:.94rem}
@media (max-width:560px){.options{grid-template-columns:1fr}}

/* ----- FAQ, appel à l'action ----- */
details{border-bottom:1px solid var(--filet);padding:20px 0}
details summary{cursor:pointer;font-weight:600;font-size:1.06rem;list-style:none;display:flex;justify-content:space-between;gap:20px}
details summary::after{content:"+";color:var(--rouge);font-weight:400;font-size:1.4rem;line-height:1}
details[open] summary::after{content:"–"}
details summary::-webkit-details-marker{display:none}
details p{margin:.8em 0 0;color:var(--gris)}
.menu summary::after{content:none}
.faq-home h2{margin-bottom:28px}
.cta-pro{padding-top:0}
.cta-box{background:var(--noir);color:#fff;border-radius:28px;padding:60px;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;right:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(closest-side,rgba(193,39,45,.55),transparent)}
.cta-box h2{color:#fff}
.cta-box p{color:var(--gris-2);margin:0}
.cta-box .ctas{position:relative;z-index:1;margin:0;justify-content:flex-end}
@media (max-width:860px){.cta-box{grid-template-columns:1fr;padding:40px 28px}.cta-box .ctas{justify-content:flex-start}}

/* ----- Pages intérieures ----- */
.pagehead{background:var(--pierre);padding:72px 0 64px;border-bottom:1px solid var(--filet)}
.pagehead h1{font-size:clamp(2.3rem,5vw,4rem)}
.crumbs ol{list-style:none;padding:0;margin:0 0 24px;display:flex;flex-wrap:wrap;gap:8px;font-size:.86rem;color:var(--gris)}
.crumbs li+li::before{content:"/";margin-right:8px;opacity:.5}
.crumbs a{text-decoration:none}
.inner main > section,.inner main > article{padding:84px 0}
.prose{max-width:780px}
.prose h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-top:1.6em}
.prose ul,.prose-list{padding-left:1.1em}
.prose li,.prose-list li{margin:.4em 0}
.prose a,.panel a,.evid a,.notice a,td a,.form a{text-decoration:none;border-bottom:1.5px solid var(--rouge)}
.meta{font-size:.88rem;color:var(--gris);border-left:3px solid var(--rouge);padding-left:14px;margin-bottom:2em}
.notice{border:1px solid var(--filet);border-left:4px solid var(--rouge);padding:18px 22px;background:var(--pierre);border-radius:8px}
.panel{border:1px solid var(--filet);padding:34px;background:var(--pierre);border-radius:var(--r)}
.panel h2,.panel h3{margin-top:0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.grid2.center{align-items:center}
@media (max-width:860px){.grid2{grid-template-columns:1fr;gap:36px}}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:0 0 60px}
.card{padding:32px 28px;border:1px solid var(--filet);border-radius:var(--r);background:#fff}
.card p{color:var(--gris)}
@media (max-width:860px){.cards{grid-template-columns:1fr}}
figure{margin:0}
figcaption{font-size:.8rem;color:var(--gris);margin-top:8px}
.tablewrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--filet);border-radius:16px}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;vertical-align:top;padding:15px 16px;border-bottom:1px solid var(--filet)}
thead th{background:var(--pierre);font-weight:600}
tbody th{font-weight:600;width:24%}
table.studies{min-width:940px;font-size:.88rem}
table.compare{min-width:680px}
.evids{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin:48px 0}
@media (max-width:760px){.evids{grid-template-columns:1fr}}
.evid{border:1px solid var(--filet);border-radius:var(--r);padding:28px}
.evid h3{font-size:1.35rem}
.lvl{font-size:.82rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--rouge)}
.lim{color:var(--gris);font-size:.95rem}
.pull{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.35;font-weight:500;margin:0;padding-left:24px;border-left:3px solid var(--rouge)}
.form{display:flex;flex-direction:column;gap:6px}
.form label{font-weight:500;font-size:.92rem;margin-top:14px}
.form label.inline{display:flex;gap:10px;align-items:flex-start;font-weight:400}
.form input,.form select,.form textarea{font:400 1rem/1.5 var(--text);padding:13px 14px;border:1px solid #CFCAC1;border-radius:12px;background:#fff;color:var(--noir)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--noir)}
.form .btn{margin-top:20px;align-self:flex-start}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}

/* ----- Pied de page ----- */
footer.site{background:var(--noir);color:var(--gris-2);padding:84px 0 28px;font-size:.95rem}
footer.site a{text-decoration:none;color:#E8E5DF}
footer.site a:hover{color:#fff;text-decoration:underline}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}}
footer ul{list-style:none;padding:0;margin:0}footer li{margin:.45em 0}
.fh{font-weight:600;color:#fff}
.footlogo{width:110px;height:auto;margin-bottom:24px}
footer .legal{border-top:1px solid var(--filet-clair);margin-top:56px;padding-top:22px;font-size:.8rem;line-height:1.6}

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