:root{--navy:#0d2038;--green:#28b33f;--blue:#2869e8;--red:#ef3128;--yellow:#f7b000;--ink:#122033;--muted:#5d6978;--line:#e7ebf0;--soft:#f6f8fb}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);line-height:1.55}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:auto}
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid #edf0f4;box-shadow:0 5px 18px rgba(13,32,56,.035);backdrop-filter:blur(12px)}
.nav-shell{width:min(1420px,calc(100% - 36px));margin:auto;min-height:78px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px}
.nav-left{justify-self:start;min-width:0}.nav-right{justify-self:end}
.brand{display:flex;align-items:center;gap:10px}.brand.compact img{width:48px;height:48px;object-fit:contain}.brand-copy{display:flex;flex-direction:column;justify-content:center;line-height:1}.brand b{font-size:22px;color:#050b13;letter-spacing:.015em}.brand small{font-size:11px;color:var(--navy);margin-top:5px;white-space:nowrap}
.links.centered{display:flex;align-items:stretch;justify-content:center;gap:26px;height:78px;font-size:13.5px;font-weight:750;color:var(--navy)}
.links.centered a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;line-height:1.13;white-space:nowrap;padding:0 2px;transition:color .18s ease}
.links.centered a:after{content:"";position:absolute;left:18%;right:18%;bottom:0;height:3px;border-radius:3px 3px 0 0;background:transparent;transform:scaleX(.45);transition:.18s ease}
.links.centered a:hover{color:var(--green)}.links.centered a:hover:after{background:rgba(40,179,63,.28);transform:scaleX(1)}
.links.centered a.active{color:var(--green)}.links.centered a.active:after{background:var(--green);transform:scaleX(1)}
.nav-contact{padding:12px 19px;font-size:14px;white-space:nowrap}
.btn{display:inline-flex;padding:14px 20px;border-radius:9px;font-weight:800}.primary{background:var(--green);color:#fff}.secondary{border:1px solid #ccd5df;color:var(--navy)}
.hero{background:radial-gradient(circle at 80% 20%,rgba(40,105,232,.10),transparent 28%),linear-gradient(100deg,#fff 0,#fff 54%,#eef5f8 100%);overflow:hidden}.hero-grid{min-height:600px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:30px}.hero-copy{padding:60px 0}.kicker{font-size:13px;font-weight:900;color:var(--green);letter-spacing:.12em;text-transform:uppercase}h1{font-size:clamp(43px,5vw,70px);line-height:1.03;letter-spacing:-.045em;color:var(--navy);margin:12px 0 20px}h1 span{color:var(--green)}.rule{display:flex;width:300px;height:5px;margin:22px 0}.rule i{flex:1}.g{background:var(--green)}.b{background:var(--blue)}.r{background:var(--red)}.y{background:var(--yellow)}.lead{font-size:19px;max-width:660px}.modes{display:flex;gap:20px;margin:30px 0;flex-wrap:wrap}.mode{font-size:14px;font-weight:700;padding-right:20px;border-right:1px solid #d9dfe7}.mode:last-child{border:0}
.art{position:relative;min-height:520px}.arc{position:absolute;inset:40px 0 40px 30px;border-radius:45% 0 0 45%;background:linear-gradient(145deg,#f4f9fb,#dce9ef);overflow:hidden}.arc:before,.arc:after{content:"";position:absolute;border-radius:50%;inset:-120px -90px;border:8px solid transparent;transform:rotate(8deg)}.arc:before{border-left-color:var(--green);border-bottom-color:var(--red)}.arc:after{inset:-92px -62px;border-left-color:var(--blue);border-bottom-color:var(--yellow)}.lab{position:absolute;right:6%;bottom:14%;width:74%;background:rgba(255,255,255,.88);padding:30px;border-radius:20px;box-shadow:0 18px 45px rgba(13,32,56,.12)}.lab small{font-weight:900;color:var(--blue)}.lab h3{font-size:28px;color:var(--navy);margin:6px 0}.flasks{display:flex;gap:14px;align-items:flex-end;margin-top:20px}.flask{width:52px;height:105px;border:2px solid #b8c5d3;border-radius:8px 8px 20px 20px;background:linear-gradient(to top,currentColor 0 42%,transparent 43%)}.flask:nth-child(2){height:130px}.flask:nth-child(3){height:90px}
.section{padding:76px 0}.title{text-align:center;margin-bottom:34px}.title h2{font-size:36px;color:var(--navy);margin:0 0 8px}.title p{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{padding:27px 24px;border-radius:18px;min-height:280px;display:flex;flex-direction:column}.card h3{color:var(--navy);font-size:20px;line-height:1.2}.card p{font-size:14px}.card a{margin-top:auto;font-weight:800}.green{background:#f0faf1}.blue{background:#f0f5ff}.red{background:#fff1f0}.yellow{background:#fff8e8}.green a{color:var(--green)}.blue a{color:var(--blue)}.red a{color:var(--red)}.yellow a{color:#e99b00}
.values{margin-top:24px;background:var(--navy);color:#fff;border-radius:19px;padding:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.value{padding:0 18px;border-right:1px solid rgba(255,255,255,.22)}.value:last-child{border:0}.value strong{display:block}.value span{font-size:13px;color:#dce5ef}
.about{background:#fafbfd}.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}.logo-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:45px;display:grid;place-items:center}.logo-box img{width:320px}.eyebrow{font-size:13px;font-weight:900;color:var(--blue);letter-spacing:.12em;text-transform:uppercase}.about h2{font-size:40px;color:var(--navy);line-height:1.15;margin:10px 0}.about p{color:#465568}.stats{display:flex;gap:32px;flex-wrap:wrap;margin:28px 0}.stat b{display:block;font-size:29px;color:var(--navy)}.stat span{font-size:13px;color:var(--muted)}
.cta{background:linear-gradient(110deg,var(--navy),#153b62);color:#fff;border-radius:22px;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{margin:0;font-size:34px}.cta p{color:#dbe5ef}.footer{padding:34px 0;font-size:13px;color:#687585}.footer-in{border-top:1px solid var(--line);padding-top:25px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1120px){.brand small{display:none}.links.centered{gap:18px;font-size:13px}.nav-shell{width:min(100% - 28px,1420px)}}
@media(max-width:980px){.links.centered{display:none}.nav-shell{grid-template-columns:1fr auto}.nav-left{justify-self:start}.nav-right{justify-self:end}.hero-grid{grid-template-columns:1fr}.art{min-height:390px}.cards{grid-template-columns:repeat(2,1fr)}.values{grid-template-columns:repeat(2,1fr)}.about-grid{grid-template-columns:1fr}}
@media(max-width:620px){.container{width:min(100% - 26px,1180px)}.nav-shell{min-height:70px}.nav-contact{display:none}.brand.compact img{width:44px;height:44px}.brand b{font-size:21px}.brand small{display:none}.hero-copy{padding:42px 0 10px}.hero-grid{min-height:auto}.modes{display:block}.mode{border-right:0;border-bottom:1px solid var(--line);padding:9px 0}.art{min-height:330px}.lab{width:84%;padding:22px}.cards,.values{grid-template-columns:1fr}.value{border-right:0;border-bottom:1px solid rgba(255,255,255,.2);padding:10px 0}.cta{flex-direction:column;align-items:flex-start}.footer-in{flex-direction:column}}

.page-hero{background:radial-gradient(circle at 85% 10%,rgba(40,105,232,.10),transparent 25%),linear-gradient(105deg,#fff 0,#fff 62%,#f1f6f9 100%);border-bottom:1px solid var(--line)}
.page-hero-inner{padding:78px 0 70px;max-width:900px}.page-hero h1{font-size:clamp(44px,5vw,66px);margin-bottom:18px}.page-hero .lead{max-width:820px}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.content-card{border:1px solid var(--line);border-radius:18px;padding:28px;background:#fff}.content-card h3{color:var(--navy);font-size:22px;line-height:1.2;margin-top:0}.content-card p{color:#465568}.content-card.green{border-top:4px solid var(--green);background:#fff}.content-card.blue{border-top:4px solid var(--blue);background:#fff}.content-card.red{border-top:4px solid var(--red);background:#fff}.content-card.yellow{border-top:4px solid var(--yellow);background:#fff}
.prose{max-width:900px;margin:auto}.prose h2{color:var(--navy);font-size:34px;line-height:1.2;margin:0 0 16px}.prose h3{color:var(--navy);font-size:23px;margin-top:32px}.prose p,.prose li{color:#465568}.prose ul{padding-left:22px}.soft{background:var(--soft)}.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}.split h2{font-size:34px;color:var(--navy);line-height:1.18;margin-top:0}.quote-box{border-left:5px solid var(--green);padding:20px 24px;background:#f4faf5;border-radius:0 16px 16px 0;font-size:20px;font-weight:750;color:var(--navy)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.step{padding:22px;border-radius:16px;background:#fff;border:1px solid var(--line)}.step b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;margin-bottom:15px}.step h3{font-size:17px;color:var(--navy)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px}.contact-card{border:1px solid var(--line);border-radius:20px;padding:30px;background:#fff}.contact-card label{display:block;font-size:13px;font-weight:800;color:var(--navy);margin:15px 0 6px}.contact-card input,.contact-card select,.contact-card textarea{width:100%;border:1px solid #cfd7e1;border-radius:9px;padding:13px;font:inherit}.contact-card textarea{min-height:150px;resize:vertical}.contact-details{font-size:18px}.contact-details a{color:var(--blue);font-weight:800}
.timeline{display:grid;gap:18px}.timeline-item{display:grid;grid-template-columns:120px 1fr;gap:25px;padding:22px 0;border-bottom:1px solid var(--line)}.timeline-item b{color:var(--green);font-size:20px}.timeline-item h3{margin:0 0 8px;color:var(--navy)}
@media(max-width:980px){.content-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.split,.contact-grid{grid-template-columns:1fr}}
@media(max-width:620px){.page-hero-inner{padding:52px 0}.content-grid,.steps{grid-template-columns:1fr}.timeline-item{grid-template-columns:1fr;gap:5px}}

/* --- V4 finition --- */
:focus-visible{outline:3px solid rgba(40,105,232,.38);outline-offset:3px;border-radius:6px}
.btn,.card,.content-card{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.btn:hover{transform:translateY(-1px)}
.card:hover,.content-card:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(13,32,56,.08)}
.icon-svg{width:50px;height:50px;display:grid;place-items:center;border-radius:50%;background:#fff;box-shadow:0 8px 20px rgba(13,32,56,.07)}
.icon-svg svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card.green .icon-svg{color:var(--green)}.card.blue .icon-svg{color:var(--blue)}.card.red .icon-svg{color:var(--red)}.card.yellow .icon-svg{color:#e99b00}
.hero-badge{position:absolute;left:10%;top:17%;background:#fff;border:1px solid rgba(13,32,56,.08);box-shadow:0 12px 30px rgba(13,32,56,.09);border-radius:14px;padding:11px 15px;font-size:12px;font-weight:850;color:var(--navy);z-index:3}
.hero-badge span{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:7px}
.footer{background:#fff}.footer-main{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:35px;padding:38px 0 28px;border-top:1px solid var(--line)}
.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{width:54px}.footer-brand b{font-size:20px;color:var(--navy)}
.footer-col strong{display:block;color:var(--navy);margin-bottom:10px}.footer-col a{display:block;margin:5px 0}.footer-col a:hover{color:var(--green)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#73808e}
.legal-page .prose{max-width:900px}.legal-page h2{margin-top:38px}
.form-note{font-size:12px;color:#6c7886;margin-top:12px}
.contact-card button{cursor:pointer}
.mobile-note{display:none}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media(max-width:980px){.footer-main{grid-template-columns:1fr 1fr}.footer-main>div:first-child{grid-column:1/-1}}
@media(max-width:620px){.footer-main{grid-template-columns:1fr}.footer-main>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column}}

/* V5 — corrections validées */
.card .btn-card{
  display:inline-flex;align-items:center;justify-content:center;
  align-self:flex-start;margin-top:auto;padding:10px 15px;border-radius:8px;
  color:#fff!important;font-size:14px;font-weight:800;
}
.card.green .btn-card{background:var(--green)}
.card.blue .btn-card{background:var(--blue)}
.card.red .btn-card{background:var(--red)}
.card.yellow .btn-card{background:#f2a500}

/* V6 — formulaire Web3Forms */
.contact-form .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form .field{display:flex;flex-direction:column;gap:7px}
.contact-form .field.full{grid-column:1/-1}
.contact-form label{font-weight:800;color:var(--navy);font-size:14px}
.contact-form input,.contact-form select,.contact-form textarea{
 width:100%;box-sizing:border-box;border:1px solid #ccd5df;border-radius:9px;
 padding:12px 13px;background:#fff;color:var(--navy);font:inherit
}
.contact-form textarea{resize:vertical;min-height:150px}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
 outline:3px solid rgba(40,105,232,.16);border-color:var(--blue)
}
.contact-form .form-note{max-width:680px;line-height:1.55}
.contact-form .form-note a{text-decoration:underline}
@media(max-width:680px){.contact-form .form-grid{grid-template-columns:1fr}.contact-form .field.full{grid-column:auto}}

/* Correctif mobile accueil : bouton + carte ISO 17025 */
@media (max-width: 620px) {
  .hero-copy {
    padding-bottom: 30px;
  }

  .hero-copy > .btn.primary {
    display: flex;
    width: 100%;
    justify-content: center;
    text-align: center;
    margin-top: 20px;
  }

  .hero .art {
    min-height: 430px;
    margin-top: 18px;
  }

  .hero .arc {
    inset: 12px 0 20px 0;
  }

  .hero .lab {
    top: 28px;
    right: 4%;
    bottom: auto;
    width: 92%;
    padding: 24px;
  }
}