:root{
  --ink:#12161B;
  --slate:#38414C;
  --slate-deep:#232A33;
  --muted:#5B6470;
  --line: rgba(18,22,27,0.12);
  --paper:#FFFFFF;
  --surface:#F5F7FA;
  --orange:#F49200;
  --cyan:#00C6FF;
  --gradient: linear-gradient(90deg, var(--orange) 0%, var(--orange) 20%, var(--cyan) 85%);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;height:100%;color-scheme:light only;}
main{flex:1;}
body{display:flex;flex-direction:column;min-height:100%;
  background:var(--paper);
  color:var(--ink);
  font-family:'Hind', sans-serif;
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Hind', sans-serif;
  font-weight:700;
  line-height:1.15;
  letter-spacing:-0.01em;
  color:var(--slate);
}
.eyebrow{
  display:inline-block;
  font-family:'Hind',sans-serif;
  font-weight:600;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:var(--orange);
  margin-bottom:10px;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
@media (max-width:700px){.wrap{padding:0 18px;}}
::selection{background:var(--orange);color:#fff;}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Hind',sans-serif;font-weight:600;font-size:15px;
  padding:13px 26px;border-radius:9px;
  border:1px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, opacity .15s ease, border-color .15s ease;
  cursor:pointer;
}
.btn-primary{
  background:var(--orange);
  color:#fff;
  box-shadow:0 6px 18px rgba(244,146,0,0.25);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(244,146,0,0.32);}
.btn-primary:disabled{background:#e2c9a3;box-shadow:none;cursor:not-allowed;opacity:.75;}
.btn-primary:disabled:hover{transform:none;box-shadow:none;}
.btn-ghost{
  background:transparent;
  color:var(--slate-deep);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--slate-deep);}
.btn-dark{background:var(--slate-deep);color:#fff;}
.btn-dark:hover{background:var(--ink);}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;
  max-width:1180px;margin:0 auto;
  position:relative;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-svg{height:38px;width:auto;}
.nav-links{display:flex;gap:30px;font-family:'Hind',sans-serif;font-weight:500;font-size:15px;}
.nav-links a{opacity:0.72;transition:opacity .15s;}
.nav-links a:hover,.nav-links a.active{opacity:1;}
.nav-cta{
  font-family:'Hind',sans-serif;font-weight:600;font-size:14px;
  background:var(--orange);color:#fff;
  padding:11px 22px;border-radius:9px;
}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:6px;width:36px;height:36px;}
.nav-burger span{display:block;width:22px;height:2px;background:var(--slate-deep);border-radius:2px;transition:transform .22s ease, opacity .22s ease;}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-burger.open span:nth-child(2){opacity:0;}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:860px){
  .nav-cta{display:none;}
  .nav-burger{display:flex;}
  .nav-links{
    display:none;flex-direction:column;gap:0;
    position:absolute;top:100%;left:0;right:0;z-index:100;
    background:rgba(255,255,255,0.98);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    padding:8px 24px 16px;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px;opacity:1;font-weight:600;}
  .nav-links a:last-child{border-bottom:none;}
}

/* ---------- Hero ---------- */
.section-top{padding-top:70px;}
@media (max-width:700px){.section-top{padding-top:44px;}}
.hero{
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:56px;align-items:center;
  padding:56px 0 72px;
  max-width:1180px;margin:0 auto;padding-left:28px;padding-right:28px;
}
@media (max-width:900px){.hero{grid-template-columns:1fr;padding-top:32px;padding-bottom:40px;}}
@media (max-width:900px){.hero-diagram{display:none;}}
.hero h1{font-size:clamp(32px,4.4vw,46px);letter-spacing:-0.02em;}
.hero h1 em{font-style:normal;}
.hero h1 em .grad-nowrap{white-space:nowrap;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero .lead{font-size:18px;color:var(--muted);margin-top:18px;max-width:520px;}
.hero-ctas{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-proof{display:flex;gap:26px;margin-top:36px;flex-wrap:wrap;}
.hero-proof div{font-family:'Hind',sans-serif;font-size:13px;color:var(--muted);display:flex;flex-direction:column;}
.hero-proof b{color:var(--slate-deep);font-size:16px;font-weight:700;}

/* ---------- Schéma hero ---------- */
.hero-diagram{background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:32px 26px;}
.diagram-row{display:flex;flex-direction:column;align-items:stretch;gap:0;max-width:340px;margin:0 auto;}
.diagram-node{background:#fff;border:1px solid var(--line);border-radius:9px;padding:16px 18px;text-align:center;}
.diagram-node.is-primary{border-color:var(--orange);box-shadow:0 6px 18px rgba(244,146,0,0.15);}
.diagram-node .ico{width:46px;height:46px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;}
.diagram-node .ico img{width:100%;height:100%;object-fit:contain;}
.diagram-node .lbl{font-weight:600;font-size:13px;color:var(--slate-deep);}
.diagram-node .sub{font-size:11px;color:var(--muted);margin-top:3px;}
.diagram-arrow{flex:none;width:2px;height:24px;background:var(--line);position:relative;margin:6px auto;}
.diagram-arrow::after{content:"";position:absolute;left:50%;top:-1px;transform:translateX(-50%);border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:7px solid var(--line);}
.diagram-caption{text-align:center;margin-top:20px;font-size:12px;color:var(--muted);font-weight:500;}

/* ---------- Bandeau réassurance ---------- */
.trust-bar{background:var(--slate);padding:20px 0;}
.trust-list{display:flex;flex-wrap:wrap;justify-content:center;gap:34px;max-width:1180px;margin:0 auto;padding:0 28px;}
.trust-item{display:flex;align-items:center;gap:10px;color:#fff;font-size:13px;font-weight:500;white-space:nowrap;}
.trust-item .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none;}

/* ---------- Sections génériques ---------- */
section{padding:88px 0;}
@media (max-width:700px){section{padding:56px 0;}}
.section-head{max-width:680px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h1,.section-head h2{font-size:clamp(26px,3.4vw,34px);}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px;}
.bg-surface{background:var(--surface);}

/* ---------- Prestations ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media (max-width:900px){.services-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.services-grid{grid-template-columns:1fr;}}
.service-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:26px;transition:border-color .15s, transform .15s;}
.service-card:hover{border-color:var(--orange);transform:translateY(-2px);}
.service-card .ico{width:50px;height:50px;margin-bottom:16px;display:flex;align-items:center;justify-content:center;}
.service-card .ico img{width:100%;height:100%;object-fit:contain;}
.service-card h3{font-size:17px;margin-bottom:8px;}
.service-card p{font-size:14px;color:var(--muted);line-height:1.55;}

/* ---------- Secteurs ---------- */
.chip-rows{display:flex;flex-direction:column;gap:12px;}
.sectors-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;}
.sector-chip{display:flex;align-items:center;justify-content:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-size:14px;font-weight:500;color:var(--slate-deep);}
.sector-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none;}

/* ---------- Terrain technique (vocabulaire) ---------- */
.vocab-list{max-width:900px;margin:0 auto;}
.vocab-row{display:grid;grid-template-columns:220px 1fr;gap:28px;padding:22px 0;border-top:1px solid var(--line);}
.vocab-row:last-child{border-bottom:1px solid var(--line);}
.vocab-row h3{font-size:13px;font-weight:700;color:var(--slate-deep);text-transform:uppercase;letter-spacing:0.04em;padding-top:2px;}
.vocab-row p{font-size:15px;line-height:1.7;color:var(--muted);}
@media (max-width:700px){.vocab-row{grid-template-columns:1fr;gap:8px;padding:18px 0;}}

/* ---------- Différenciants ---------- */
.diff{display:grid;grid-template-columns:90px 1fr;gap:20px;padding:32px 0;border-top:1px solid var(--line);}
.diff:last-child{border-bottom:1px solid var(--line);}
.diff-num{font-family:'Hind',sans-serif;font-weight:700;font-size:34px;color:var(--line);}
.diff-content h3{font-size:20px;margin-bottom:10px;}
.diff-content p{color:var(--muted);font-size:15px;line-height:1.65;max-width:640px;}
.diff-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.diff-tag{font-size:12px;font-weight:600;color:var(--slate-deep);background:var(--surface);border:1px solid var(--line);padding:5px 12px;border-radius:999px;}
@media (max-width:700px){.diff{grid-template-columns:1fr;gap:10px;}}

/* ---------- Zones d'intervention ---------- */
.zones-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
@media (max-width:800px){.zones-grid{grid-template-columns:repeat(2,1fr);}}
.zone-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:20px;}
.zone-card .bar{height:6px;border-radius:4px;margin-bottom:14px;}
.zone-card h4{font-size:15px;margin-bottom:6px;}
.zone-card p{font-size:13px;color:var(--muted);line-height:1.5;}
.zone-verte .bar{background:#27ae60;}
.zone-bleue .bar{background:#2980b9;}
.zone-orange .bar{background:#f39c12;}
.zone-rouge .bar{background:#e74c3c;}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;background:none;border:none;text-align:left;cursor:pointer;padding:22px 0;font-family:'Hind',sans-serif;font-weight:600;font-size:16px;color:var(--slate-deep);}
.faq-q .icon{flex:none;font-size:20px;color:var(--orange);transition:transform .2s;}
.faq-item.open .faq-q .icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--muted);font-size:15px;line-height:1.7;}
.faq-item.open .faq-a{max-height:600px;padding-bottom:22px;}
.faq-a p{margin-bottom:10px;text-align:justify;}

/* ---------- CTA final ---------- */
.tool-spotlight{max-width:640px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-top:3px solid var(--orange);border-radius:9px;padding:48px 40px;box-shadow:0 1px 4px rgba(0,0,0,0.05);}
.tool-spotlight .eyebrow{margin-bottom:10px;}
.tool-spotlight h2{margin-bottom:14px;font-size:clamp(22px,3vw,28px);}
.tool-spotlight p{color:var(--muted);max-width:480px;margin:0 auto 26px;}
@media (max-width:600px){.tool-spotlight{padding:34px 22px;}}

.final-cta{background:var(--slate);color:#fff;padding:80px 0;text-align:center;}
.final-cta h2{color:#fff;font-size:clamp(24px,3.6vw,32px);max-width:640px;margin:0 auto;}
.final-cta h2 em{font-style:normal;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;}
.final-cta p{color:rgba(255,255,255,0.7);margin:16px auto 30px;max-width:520px;}
.cta-steps{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:38px;}
.cta-step{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,0.75);font-weight:500;}
.cta-step-num{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,0.12);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex:none;}
.cta-step-arr{color:rgba(255,255,255,0.35);}
@media(max-width:600px){
  .cta-steps{flex-direction:column;align-items:flex-start;gap:12px;margin-left:auto;margin-right:auto;width:max-content;}
  .cta-step-arr{display:none;}
}

/* ---------- Formulaires ---------- */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:12.5px;font-weight:600;color:var(--slate-deep);margin-bottom:7px;text-transform:uppercase;letter-spacing:0.04em;}
.form-input,.form-select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font-family:'Hind',sans-serif;font-size:15px;color:var(--ink);background:#fff;outline:none;transition:border-color .15s;}
.form-input:focus,.form-select:focus{border-color:var(--orange);}
.form-submit{margin-top:8px;}
.form-submit .btn{width:100%;justify-content:center;}
.demo-form-card{background:#fff;border:1px solid var(--line);border-radius:9px;padding:32px;}
@media (max-width:600px){.demo-form-card{padding:22px;}}
.demo-success{text-align:center;padding:60px 20px;}
.demo-success h2{margin-top:10px;}
.demo-success p{color:var(--muted);margin-top:12px;}
.form-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}

.contact-layout{display:grid;grid-template-columns:260px 1fr;gap:44px;align-items:start;}
@media (max-width:760px){.contact-layout{grid-template-columns:1fr;gap:28px;}}
.contact-info-item{margin-bottom:26px;}
.contact-info-item:last-child{margin-bottom:0;}
.contact-info-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);margin-bottom:5px;}
.contact-info-value{font-size:15px;color:var(--ink);line-height:1.5;}
.contact-info-value a{color:var(--slate-deep);text-decoration:underline;text-decoration-color:var(--line);}
.contact-info-value a:hover{color:var(--orange);}
.contact-info-sub{font-size:13px;color:var(--muted);margin-top:3px;}

.form-check{display:flex;align-items:flex-start;gap:9px;margin-bottom:18px;}
.form-check input[type="checkbox"]{margin-top:3px;width:16px;height:16px;flex:none;accent-color:var(--orange);cursor:pointer;}
.form-check label{font-size:13.5px;color:var(--ink);line-height:1.5;cursor:pointer;text-transform:none;font-weight:400;letter-spacing:0;}
.form-rgpd-note{font-size:12px;color:var(--muted);line-height:1.5;margin-top:12px;}
.form-rgpd-note a{color:var(--muted);text-decoration:underline;}
.form-rgpd-note a:hover{color:var(--orange);}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:32px 28px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  max-width:1180px;margin:0 auto;width:100%;
  font-size:13px;color:var(--muted);
}
footer a{opacity:0.85;}
footer a:hover{opacity:1;text-decoration:underline;}

/* ---------- Pages légales ---------- */
.legal-body h2{font-size:20px;margin-top:36px;margin-bottom:10px;}
.legal-body h3{font-size:16px;font-weight:700;margin-top:26px;margin-bottom:8px;color:var(--slate-deep);}
.legal-body p{font-size:15px;line-height:1.7;color:#3a3f45;margin-bottom:12px;text-align:justify;}
.legal-body a{color:var(--orange);text-decoration:none;}
.legal-body a:hover{text-decoration:underline;}
.legal-body ul{padding-left:20px;margin-bottom:12px;}
.about-quote{border-left:3px solid var(--orange);padding-left:22px;margin:20px 0 24px;}
.about-quote p{font-style:italic;color:var(--slate-deep);}

.timeline{position:relative;border-left:2px solid var(--orange);margin:20px 0 32px;padding-left:26px;}
.timeline-item{position:relative;margin-bottom:28px;}
.timeline-item:last-child{margin-bottom:0;}
.timeline-item::before{content:'';position:absolute;left:-31px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--orange);}
.timeline-item h3{margin-top:0;margin-bottom:4px;}
.timeline-item .timeline-org{display:block;font-weight:700;color:var(--ink);margin-bottom:4px;font-size:15px;}
.timeline-formation .timeline-org{font-weight:400;color:var(--muted);}
.timeline-item p{margin-bottom:0;}
@media (max-width:600px){.timeline{padding-left:20px;}.timeline-item::before{left:-25px;}}
.legal-toc{background:var(--surface);border-radius:9px;padding:18px 22px;margin:24px 0 32px;}
.legal-toc a{display:block;padding:4px 0;font-size:14px;color:var(--slate-deep);}
.legal-toc a:hover{color:var(--orange);}

/* ---------- Blog ---------- */
.blog-list{display:flex;flex-direction:column;gap:24px;}
.blog-card{display:block;background:#fff;border:1px solid var(--line);border-radius:9px;padding:32px 36px;text-decoration:none;color:inherit;transition:box-shadow .15s;}
.blog-card:hover{box-shadow:0 4px 20px rgba(0,0,0,0.07);}
.blog-card-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.blog-tag{font-family:'Hind',sans-serif;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--orange);background:rgba(244,146,0,.08);padding:3px 8px;border-radius:4px;}
.blog-date{font-family:'Hind',sans-serif;font-size:11px;font-weight:500;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;}
.blog-card h3{font-size:20px;margin-bottom:10px;}
.blog-card p{font-size:14.5px;color:var(--muted);line-height:1.6;margin-bottom:16px;}
.blog-read{font-size:13px;font-weight:700;color:var(--orange);}

/* Article */
.blog-article-top{padding-bottom:0;}
.blog-article-header{max-width:680px;padding-bottom:48px;}
.blog-back{font-family:'Hind',sans-serif;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);text-decoration:none;display:inline-block;margin-bottom:20px;}
.blog-back:hover{color:var(--ink);}
.blog-content a{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}
.blog-content a:hover{color:var(--slate);}
.blog-article-header .blog-tag{display:inline-block;margin-bottom:14px;}
.blog-article-header h1{font-size:clamp(28px,4vw,42px);line-height:1.15;margin-bottom:18px;}
.blog-intro{font-size:18px;color:var(--muted);line-height:1.6;margin-bottom:20px;text-align:justify;}
.blog-article-meta{font-family:'Hind',sans-serif;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;display:flex;gap:8px;}

.blog-article-body{padding:56px 0 80px;}
.blog-layout{display:grid;grid-template-columns:220px 1fr;gap:64px;align-items:start;}

.blog-toc{position:sticky;top:100px;}
.blog-toc ul{list-style:none;padding:0;margin:0;border-left:2px solid var(--line);}
.blog-toc a{display:block;padding:8px 0 8px 16px;font-size:13px;color:var(--muted);text-decoration:none;line-height:1.4;transition:color .15s,border-color .15s;}
.blog-toc a:hover{color:var(--ink);}
.blog-toc a.active{color:var(--orange);font-weight:700;border-left:2px solid var(--orange);margin-left:-2px;}

.blog-content{max-width:680px;min-width:0;}
.blog-content h2{font-size:22px;margin:48px 0 16px;scroll-margin-top:100px;}
.blog-content h2:first-child{margin-top:0;}
.blog-content p{font-size:15.5px;line-height:1.75;color:#2a2e33;margin-bottom:18px;text-align:justify;}
.blog-content ul{padding-left:20px;margin-bottom:18px;}
.blog-content li{font-size:15.5px;line-height:1.75;color:#2a2e33;margin-bottom:8px;}
.blog-content strong{font-weight:700;color:var(--ink);}
.blog-figure{margin:32px 0;border:1px solid var(--line);border-radius:9px;overflow:hidden;}
.blog-figure img{width:100%;display:block;cursor:zoom-in;}
.blog-figure figcaption{font-size:12px;color:var(--muted);font-family:'Hind',sans-serif;text-transform:uppercase;letter-spacing:.05em;padding:10px 16px;background:var(--surface);}
.blog-figure.protocol-figure{border:none;}
.protocol-table{width:100%;border-collapse:collapse;background:#fff;}
.protocol-table th,.protocol-table td{padding:12px 14px;text-align:left;font-size:13.5px;line-height:1.5;border:1px solid var(--line);vertical-align:top;}
.protocol-table th{font-family:'Hind',sans-serif;font-weight:700;color:#fff;font-size:13px;}
.protocol-table td:first-child{font-weight:700;color:var(--ink);background:var(--surface);white-space:nowrap;}
.protocol-table th.th-modbus{background:var(--orange);}
.protocol-table th.th-bacnet{background:var(--cyan);}
.protocol-table th.th-lorawan{background:var(--slate);}
.lightbox-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:1000;align-items:center;justify-content:center;cursor:zoom-out;}
.lightbox-overlay.open{display:flex;}
.lightbox-overlay img{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:4px;cursor:zoom-out;}

@media(max-width:780px){
  .blog-layout{grid-template-columns:1fr;}
  .blog-toc{display:none;}
}