:root{
  --ink:#1B171B;
  --ink-soft:#272027;
  --paper:#F5F2EF;
  --paper-2:#EAE4DE;
  --red:#A81B26;
  --red-bright:#D62534;
  --silver:#9AA0A8;
  --silver-light:#CFD3D8;
  --line:rgba(27,23,27,.14);
  --muted:#615b62;
  --serif:"Spectral",Georgia,serif;
  --sans:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
a{color:inherit;text-decoration:none}

.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--red);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--red)}

/* ===== NAV ===== */
nav{position:sticky;top:0;z-index:50;background:rgba(245,242,239,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:13px}
.brand img{width:56px;height:56px;border-radius:50%;object-fit:cover;box-shadow:0 1px 8px rgba(168,27,38,.3)}
.brand .txt{display:flex;flex-direction:column;line-height:1.05}
.brand .txt b{font-family:var(--mono);font-weight:500;font-size:1rem;letter-spacing:.02em}
.brand .txt span{font-size:.6rem;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav-right{display:flex;align-items:center;gap:26px}
.corner-logo{display:flex;align-items:center}
.corner-logo img{width:44px;height:44px;border-radius:50%;object-fit:cover;box-shadow:0 1px 6px rgba(168,27,38,.25);transition:transform .25s}
.corner-logo:hover img{transform:scale(1.06)}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{font-size:.86rem;color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;border:1px solid var(--ink);padding:.6em 1.2em;border-radius:2px;transition:all .25s}
.nav-cta:hover{background:var(--red);border-color:var(--red);color:#fff}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:24px;height:2px;background:var(--ink)}

/* ===== HERO ===== */
.hero{position:relative;background:var(--ink);color:var(--paper);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(ellipse 150% 130% at 50% 32%,#000 60%,transparent 100%)}
.hero::after{content:"";position:absolute;top:-15%;right:-8%;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(214,37,52,.20),transparent 64%);filter:blur(8px)}
.hero-glow2{position:absolute;bottom:-25%;left:-10%;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(214,37,52,.12),transparent 66%);filter:blur(10px);z-index:1}
.hero-bg-logo{position:absolute;top:50%;right:-4%;transform:translateY(-50%);z-index:1;pointer-events:none}
.hero-bg-logo img{width:min(48vw,600px);aspect-ratio:1;border-radius:50%;object-fit:cover;filter:blur(5px);opacity:.20;mask-image:radial-gradient(circle,#000 52%,transparent 76%);-webkit-mask-image:radial-gradient(circle,#000 52%,transparent 76%)}
.hero .wrap{position:relative;z-index:2;display:block;padding:104px 32px 110px}
.hero .eyebrow{color:#ef6b76}
.hero .eyebrow::before{background:#ef6b76}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.6rem,5.4vw,4.6rem);line-height:1.1;letter-spacing:-.015em;margin:24px 0 0;max-width:20ch;padding-bottom:.05em}
.hero h1 em{font-style:italic;color:var(--paper)}
.hero p.lead{font-size:1.1rem;color:rgba(245,242,239,.74);max-width:60ch;margin-top:28px;font-weight:300}
.hero-actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}
.hero-medallion{display:flex;justify-content:center}
.hero-medallion img{width:min(28vw,240px);aspect-ratio:1;border-radius:50%;object-fit:cover;
  box-shadow:0 0 0 1px rgba(207,211,216,.25),0 30px 70px rgba(0,0,0,.5),0 0 60px rgba(214,37,52,.25);animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.btn{font-family:var(--mono);font-size:.82rem;letter-spacing:.05em;padding:.95em 1.7em;border-radius:2px;transition:all .25s;display:inline-flex;align-items:center;gap:.6em;cursor:pointer}
.btn-primary{background:var(--red-bright);color:#fff;font-weight:500}
.btn-primary:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(245,242,239,.3);color:var(--paper)}
.btn-ghost:hover{border-color:#ef6b76;color:#ef6b76}
.hero-meta{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12)}
.hero-meta .wrap{display:flex;flex-wrap:wrap;gap:50px;padding:24px 32px}
.hero-meta div{font-family:var(--mono);font-size:.78rem;color:rgba(245,242,239,.6);letter-spacing:.04em}
.hero-meta b{display:block;font-family:var(--sans);font-size:1rem;color:var(--paper);font-weight:500;letter-spacing:0;margin-top:3px}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== INTRO ===== */
.intro{padding:110px 0 30px}
/* ===== CARROUSEL PLEIN SITE (photos en fond, fondu + zoom lent, voile clair) ===== */
html{background:var(--paper)}
body{background:transparent}
.site-bg{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.site-bg__slide{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 2.2s ease-in-out;
  transform:scale(1.0);animation:bgZoom 30s ease-in-out infinite alternate}
.site-bg__slide.is-active{opacity:1}
@keyframes bgZoom{from{transform:scale(1.0)}to{transform:scale(1.045)}}
.site-veil{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(245,242,239,.88),rgba(245,242,239,.78) 45%,rgba(245,242,239,.88))}
@media(prefers-reduced-motion:reduce){.site-bg__slide{animation:none;transform:none}}
/* la zone contact garde son fond photo dédié (validé) */
.contact.bgp-risques{background-image:linear-gradient(rgba(27,23,27,.84),rgba(27,23,27,.84)),url('/img/bg-risques.webp');background-size:cover;background-position:center}
/* ===== engagements ===== */
.eng-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:46px}
.eng{background:var(--paper);padding:32px 30px}
.eng .k{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.eng h3{font-family:var(--serif);font-weight:500;font-size:1.15rem;margin-bottom:8px}
.eng p{color:#3a3540;font-size:.93rem}
/* ===== FAQ ===== */
.faq{max-width:820px;margin:46px auto 0}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:3px;margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:20px 24px;font-family:var(--serif);font-size:1.06rem;position:relative;padding-right:52px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-family:var(--mono);color:var(--red);font-size:1.2rem;transition:transform .3s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .a{padding:0 24px 20px;color:#3a3540;font-size:.95rem;line-height:1.6}
/* ===== CTA flottant ===== */
.cta-float{position:fixed;right:22px;bottom:22px;z-index:60;background:var(--red);color:#fff;font-family:var(--mono);font-size:.8rem;letter-spacing:.05em;padding:.95em 1.5em;border-radius:40px;box-shadow:0 6px 24px rgba(168,27,38,.35);transition:transform .25s,background .25s}
.cta-float:hover{background:var(--red-bright);transform:translateY(-2px)}
@media(max-width:640px){.cta-float{right:14px;bottom:14px;font-size:.72rem}}
/* ===== tuiles prestations cliquables (accordéon) ===== */
.svc.clickable{cursor:pointer}
.svc .plus{position:absolute;top:30px;right:28px;font-family:var(--mono);font-size:1.25rem;color:var(--red);transition:transform .3s ease;line-height:1}
.svc.open .plus{transform:rotate(45deg)}
.svc .svc-more{max-height:0;overflow:hidden;transition:max-height .5s ease}
.svc.open .svc-more{max-height:480px}
.svc-more ul{margin:16px 0 0;padding-left:1.15em;color:#3a3540;font-size:.94rem;line-height:1.55}
.svc-more li{margin-bottom:.45em}
.svc-more li::marker{color:var(--red)}
.svc-more .svc-cta{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:.8rem;letter-spacing:.05em;color:var(--red);border-bottom:1px solid var(--red)}
.intro-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:70px;align-items:start}
.intro h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.8rem,3.4vw,2.7rem);line-height:1.26;letter-spacing:-.01em;padding-bottom:.06em}
.intro .body p{color:#3a3540;font-size:1.06rem;margin-bottom:18px}
.intro .body p:first-child{font-size:1.18rem;color:var(--ink)}

/* ===== SERVICES ===== */
.services{padding:90px 0 30px}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:50px;flex-wrap:wrap}
.sec-head h2{font-family:var(--serif);font-weight:400;font-size:clamp(2rem,4vw,3rem);letter-spacing:-.01em;line-height:1.12}
.sec-head p{color:var(--muted);max-width:38ch;font-size:.98rem}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.svc{position:relative;padding:38px 36px 40px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);background:var(--paper);transition:background .3s}
.svc .num{font-family:var(--mono);font-size:.78rem;color:var(--red);letter-spacing:.1em}
.svc h3{font-family:var(--serif);font-weight:500;font-size:1.42rem;margin:14px 0 10px;letter-spacing:-.01em}
.svc p{color:#4a4550;font-size:.96rem}
.svc::after{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--red-bright);transition:width .35s ease}
.svc:hover{background:#fff}
.svc:hover::after{width:100%}
.svc.feature{background:var(--ink);color:var(--paper)}
.svc.feature .num{color:#ef6b76}
.svc.feature p{color:rgba(245,242,239,.72)}
.svc.feature .tag{display:inline-block;font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;background:var(--red-bright);padding:.25em .7em;border-radius:2px;margin-top:16px}

/* ===== FOCUS ===== */
.focus{margin:120px 0;background:var(--ink-soft);color:var(--paper);position:relative;overflow:hidden}
.focus::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:40px 40px;mask-image:radial-gradient(ellipse 70% 100% at 18% 50%,#000,transparent)}
.focus .wrap{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;padding:80px 32px}
.focus h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.9rem,3.6vw,2.8rem);line-height:1.12;margin:18px 0 22px}
.focus h2 em{font-style:italic;color:var(--red-bright)}
.focus p{color:rgba(245,242,239,.78);font-size:1.05rem;font-weight:300;max-width:48ch}
.focus ul{list-style:none;display:grid;gap:14px}
.focus li{font-family:var(--mono);font-size:.86rem;letter-spacing:.02em;padding:16px 20px;border:1px solid rgba(255,255,255,.14);border-radius:3px;display:flex;gap:14px;align-items:center;color:rgba(245,242,239,.9);transition:border-color .25s,transform .25s}
.focus li:hover{border-color:var(--red-bright);transform:translateX(6px)}
.focus li b{color:#ef6b76;font-family:var(--mono)}

/* ===== PROCESS ===== */
.process{padding:96px 0 90px}
.sectors{padding:96px 0 10px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.tag-cloud span{font-family:var(--mono);font-size:.8rem;letter-spacing:.01em;padding:.7em 1.15em;border:1px solid var(--line);border-radius:40px;color:#3a3540;background:var(--paper);transition:border-color .25s,color .25s,transform .25s;cursor:default}
.tag-cloud span:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px)}
.proc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:46px}
.step{padding:30px 26px 36px;border-right:1px solid var(--line)}
.step:last-child{border-right:none}
.step .n{font-family:var(--mono);font-size:.78rem;color:var(--red)}
.step h4{font-family:var(--serif);font-weight:500;font-size:1.18rem;margin:12px 0 8px}
.step p{color:var(--muted);font-size:.9rem}

/* ===== CONTACT ===== */
.contact{background:var(--ink);color:var(--paper);position:relative;overflow:hidden}
.contact::after{content:"";position:absolute;bottom:-30%;left:-5%;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(214,37,52,.18),transparent 64%)}
.contact .wrap{position:relative;z-index:2;padding:100px 32px}
.contact h2{font-family:var(--serif);font-weight:400;font-size:clamp(2.2rem,4.5vw,3.4rem);letter-spacing:-.01em;line-height:1.12;max-width:18ch;padding-bottom:.06em}
.contact h2 em{font-style:italic;color:var(--red-bright)}
.contact-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;margin-top:50px;align-items:start}
.coord{display:block}
.coord p{margin:0;line-height:1.65;font-size:1rem;color:rgba(245,242,239,.85)}
.coord a{color:rgba(245,242,239,.92);border-bottom:1px solid #ef6b76}
.coord .stamp-name{font-family:var(--serif);font-weight:600;font-size:1.3rem;color:var(--paper);margin-bottom:6px;line-height:1.3}
.coord .stamp-siren{font-style:italic;color:rgba(245,242,239,.6);font-size:.92rem;margin-top:8px}
.contact .cta-box{border:1px solid rgba(255,255,255,.16);border-radius:4px;padding:34px}
.contact .cta-box p{color:rgba(245,242,239,.72);font-size:.96rem;margin-bottom:22px;font-weight:300}
.contact-form{display:grid;gap:12px}
.contact-form input,.contact-form textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:3px;padding:.8em 1em;color:var(--paper);font-family:var(--sans);font-size:.95rem;transition:border-color .2s}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(245,242,239,.45)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--red-bright)}
.contact-form textarea{resize:vertical}
.contact-form button{margin-top:6px;border:none;font-family:var(--mono)}

footer{background:var(--ink);color:rgba(245,242,239,.55);border-top:1px solid rgba(255,255,255,.1)}
footer .wrap{display:flex;justify-content:space-between;align-items:center;padding:30px 32px;flex-wrap:wrap;gap:16px;font-family:var(--mono);font-size:.74rem;letter-spacing:.04em}
footer b{color:var(--paper);font-weight:500}

/* --- Formules ONNOFF Expert --- */
.inclus-bandeau{border:1px solid var(--line);border-left:3px solid var(--red);border-radius:6px;background:var(--paper-2);padding:28px 32px;margin-bottom:34px}
.inclus-bandeau h3{font-family:var(--serif);font-weight:500;font-size:1.25rem;margin:0 0 16px}
.inclus-bandeau ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:11px 30px}
.inclus-bandeau li{position:relative;padding-left:20px;font-size:.92rem;color:var(--ink-soft);line-height:1.5}
.inclus-bandeau li::before{content:"¹3";position:absolute;left:0;color:var(--red);font-weight:700}
.periode-switch{display:inline-flex;border:1px solid var(--line);border-radius:3px;overflow:hidden;margin-bottom:34px;background:var(--paper-2)}
.periode-btn{font-family:var(--mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;padding:.75em 1.5em;background:none;border:none;color:var(--muted);cursor:pointer;transition:all .2s}
.periode-btn.is-on{background:var(--ink);color:var(--paper)}
.periode-btn.is-on span{color:#ef6b76!important}
.formule-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;align-items:stretch}
.formule{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:6px;padding:32px 28px;background:var(--paper-2)}
.formule.is-mise-en-avant{border-color:var(--red);box-shadow:0 12px 40px rgba(0,0,0,.07)}
.formule-badge{position:absolute;top:-11px;left:28px;font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;background:var(--red);color:#fff;padding:.4em .9em;border-radius:2px}
.formule h3{font-family:var(--serif);font-weight:500;font-size:1.4rem;margin:0}
.formule-cible{color:var(--muted);font-size:.86rem;margin:4px 0 20px;min-height:2.4em}
.formule-prix{font-family:var(--serif);font-size:2.2rem;line-height:1}
.formule-prix span{font-family:var(--sans,inherit);font-size:.9rem;color:var(--muted)}
.formule-postes{font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;color:var(--red);margin:10px 0 22px}
.formule ul{list-style:none;padding:0;margin:0 0 26px;display:flex;flex-direction:column;gap:9px;flex:1}
.formule li{position:relative;padding-left:20px;font-size:.9rem;color:var(--ink-soft);line-height:1.45}
.formule li::before{content:"—";position:absolute;left:0;color:var(--red)}
.formule-cta{justify-content:center;width:100%;cursor:pointer;font:inherit}
.formule-cta[disabled]{opacity:.55;cursor:progress}
.formule-note{margin-top:30px;font-size:.88rem;color:var(--muted);max-width:70ch}
.formule-note a{color:var(--red);border-bottom:1px solid var(--red)}
.formule-erreur{margin-top:14px;font-size:.9rem;color:var(--red)}

@media(max-width:860px){
  .nav-links{display:none}
  .burger{display:flex}
  .hero .wrap{grid-template-columns:1fr;gap:40px;padding:70px 28px 80px}
  .hero-medallion{order:-1}
  .hero-medallion img{width:min(42vw,170px)}
  .intro-grid,.focus .wrap,.contact-grid{grid-template-columns:1fr;gap:36px}
  .svc-grid{grid-template-columns:1fr}
  .proc-grid{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:none}
  .step{border-bottom:1px solid var(--line)}
}
@media(max-width:520px){
  .proc-grid{grid-template-columns:1fr}
  .step{border-right:none}
}