/* Nova Step Solution — feuille de style
   Couleurs principales : modifiez ici pour changer tout le site. */
:root{
  --ink:#0E1A2B;       /* bleu nuit (textes, fonds sombres) */
  --ink2:#3E4855;
  --mut:#5A6472;
  --bg:#F5F3EE;        /* fond clair */
  --card:#FFFFFF;
  --line:#E2DED5;
  --acc:#0B6E5B;       /* vert principal (boutons) */
  --acc-d:#08503F;
  --mint:#D7E8E2;
  --mint-t:#7FD1B9;
  --gold:#E0A020;      /* orange du logo N2S */
  --radius:20px;
  --display:'Bricolage Grotesque',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--acc);text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:800;letter-spacing:-.015em;line-height:1.08;margin:0}
p{margin:0}
.w{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:block;font-size:14px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--acc);margin-bottom:14px}
.h2{font-size:clamp(30px,4vw,48px);max-width:760px}
.lead{font-size:18px;color:var(--ink2);max-width:640px;margin-top:16px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--acc);outline-offset:3px}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 26px;border-radius:999px;font:600 16px var(--body);border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s}
.btn:hover{transform:translateY(-1px)}
.btn-p{background:var(--acc);color:#fff}.btn-p:hover{background:var(--acc-d);color:#fff}
.btn-s{background:#fff;color:var(--ink);border-color:var(--ink)}.btn-s:hover{background:var(--ink);color:#fff}

/* En-tête */
.top{background:var(--ink);color:#C9D2DE;font-size:13px}
.top .w{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px}
.top a{color:#C9D2DE}.top a:hover{color:#fff}
.top-l{display:flex;gap:24px;flex-wrap:wrap}
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.hdr.scrolled{box-shadow:0 6px 24px rgba(14,26,43,.08)}
.hdr .w{display:flex;align-items:center;justify-content:space-between;height:80px;gap:24px}
.brand{display:flex;align-items:center;gap:14px;color:var(--ink)}
.brand img{height:44px;width:auto}
.brand span{display:flex;flex-direction:column;padding-left:14px;border-left:1px solid var(--line);font-family:var(--display);font-weight:800;font-size:18px;line-height:1.1}
.brand small{font-family:var(--body);font-weight:500;font-size:11px;letter-spacing:.1em;color:var(--mut)}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:var(--ink);font-weight:500;font-size:15px;position:relative}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--acc);transition:right .25s}
.nav a:not(.btn):hover::after{right:0}
.nav .btn{min-height:44px;padding:0 20px;font-size:15px;color:#fff}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}

/* Hero */
.hero{padding:88px 0 96px;position:relative}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 400px at 85% 20%,rgba(11,110,91,.08),transparent 70%);pointer-events:none}
.hero .w{display:grid;grid-template-columns:minmax(0,820px);gap:64px;align-items:center;position:relative}
.pill{display:inline-block;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--ink2);margin-bottom:24px}
.hero h1{font-size:clamp(40px,5.4vw,66px);line-height:1.02;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--acc)}
.hero .sub{font-size:19px;color:#4A5462;margin:22px 0 30px;max-width:560px}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.erps{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px;font-size:14px;color:var(--mut)}
.erps b{padding:7px 14px;border-radius:8px;background:#fff;border:1px solid var(--line);font-weight:600;color:var(--ink)}

/* Chiffres */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px 40px}
.stat{padding:0 24px;border-left:1px solid var(--line)}.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-family:var(--display);font-weight:800;font-size:48px;line-height:1}
.stat span{color:#4A5462}

/* Logos clients */
.logos-h{text-align:center;margin-bottom:32px}
.logos-h .lead{margin:10px auto 0}
.logos{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}
.logo{width:calc((100% - 64px)/5);height:112px;padding:18px;border-radius:14px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s}
.logo:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(14,26,43,.08)}
.logo img{max-width:100%;max-height:60px;width:auto;height:auto;object-fit:contain}

/* Onglets ERP */
.tabs{display:flex;gap:12px;margin:36px 0 28px;flex-wrap:wrap}
.tab{min-height:50px;padding:0 26px;border-radius:999px;border:1px solid #CFC9BC;background:#fff;color:var(--ink);font:600 17px var(--body);cursor:pointer;transition:background .2s,color .2s}
.tab[aria-selected="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.panel{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:44px;border-radius:24px;background:var(--bg);border:1px solid var(--line);animation:fade .35s ease}
.panel[hidden]{display:none}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.tag{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--ink);color:#fff;font-size:13px;font-weight:600;margin-bottom:18px}
.panel h3{font-size:38px;margin-bottom:16px}
.panel p{font-size:17px;color:var(--ink2)}
.fit{margin:22px 0 26px;padding:16px 20px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.fit small{display:block;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--mut);margin-bottom:4px}
.mods{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.mods li{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;background:#fff;border:1px solid var(--line);font-weight:500}
.ck{flex:none;display:flex;width:30px;height:30px;border-radius:50%;background:var(--mint);align-items:center;justify-content:center}

/* Services */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.svc{padding:30px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:transform .2s,box-shadow .2s,border-color .2s}
.svc:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(14,26,43,.08);border-color:var(--mint-t)}
.ico{display:flex;width:52px;height:52px;border-radius:14px;background:var(--mint);align-items:center;justify-content:center;margin-bottom:18px}
.svc h3{font-size:23px;font-weight:700;margin-bottom:10px}
.svc p{color:#4A5462}

/* Méthode */
.dark{background:var(--ink);color:#fff}
.dark .eyebrow{color:var(--mint-t)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;margin-top:48px}
.step{padding-top:22px;border-top:2px solid #3A4A60;transition:border-color .4s}
.step.in{border-color:var(--mint-t)}
.step b{display:block;font-family:var(--display);font-size:38px;color:var(--mint-t);margin-bottom:10px}
.step strong{display:block;font-size:19px;margin-bottom:8px}
.step span{color:#B8C2CF;font-size:15px}

/* Pourquoi */
.why{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.why-g{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.why-c{padding:26px;border-radius:var(--radius);background:var(--bg)}
.why-c strong{display:block;font-family:var(--display);font-size:21px;margin-bottom:8px}
.why-c span{color:#4A5462;font-size:15px}

/* Contact */
.ct{display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:52px;border-radius:28px;background:#fff;border:1px solid var(--line)}
.ct ul{list-style:none;padding:0;margin:24px 0;display:flex;flex-direction:column;gap:12px}
.ct li{display:flex;gap:12px;align-items:center}
.coords{padding-top:22px;border-top:1px solid var(--line);color:var(--ink2);display:flex;flex-direction:column;gap:6px}
.coords a{color:var(--ink2)}.coords a:hover{color:var(--acc)}
.form{display:flex;flex-direction:column;gap:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.f{display:flex;flex-direction:column;gap:7px}
.f label{font-size:14px;font-weight:600}
.f input,.f select,.f textarea{min-height:50px;padding:12px 16px;border-radius:12px;border:1px solid #CFC9BC;background:#fff;font:16px var(--body);color:var(--ink);width:100%}
.f textarea{min-height:120px;resize:vertical}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--acc)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.note{font-size:13px;color:var(--mut)}
.alert{padding:14px 18px;border-radius:12px;font-weight:500}
.alert.ok{background:var(--mint);color:var(--acc-d)}
.alert.err{background:#FDE8E4;color:#9A2A14}

/* Pied de page */
.ftr{background:var(--ink);color:#C9D2DE;padding:72px 0 32px}
.ftr-g{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.ftr h4{color:#fff;font-size:15px;margin:0 0 14px}
.ftr a{color:#C9D2DE}.ftr a:hover{color:#fff}
.ftr ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;font-size:15px}
.ftr .logo-w{display:inline-block;background:#fff;padding:12px 16px;border-radius:14px;margin-bottom:16px}
.ftr .logo-w img{height:84px;width:auto}
.ftr-b{margin-top:48px;padding-top:22px;border-top:1px solid #2A3950;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:14px}
.social{display:flex;gap:10px;margin-top:16px}
.social a{display:flex;width:40px;height:40px;border-radius:10px;background:#1C2A3F;align-items:center;justify-content:center}
.social a:hover{background:var(--acc)}

/* Bouton WhatsApp flottant */
.wa{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;width:56px;height:56px;border-radius:50%;background:#25D366;align-items:center;justify-content:center;box-shadow:0 10px 28px rgba(0,0,0,.25);transition:transform .2s}
.wa:hover{transform:scale(1.07)}
.totop{position:fixed;right:24px;bottom:88px;z-index:60;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .25s}
.totop.show{opacity:1;pointer-events:auto}

/* Apparition au défilement */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .panel{animation:none}
}

/* Pages simples (merci, 404, mentions) */
.simple{min-height:60vh;display:flex;align-items:center;padding:80px 0}
.simple .card{max-width:640px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:28px;padding:56px 40px}
.simple h1{font-size:clamp(30px,4vw,42px);margin:10px 0 14px}
.simple p{color:var(--ink2);margin-bottom:28px}
.legal{max-width:760px}
.legal h2{font-size:24px;margin:32px 0 10px}
.legal p{color:var(--ink2);margin-bottom:10px}

/* Responsive */
@media(max-width:1080px){
  .nav{gap:20px}
  .logo{width:calc((100% - 48px)/4)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .ftr-g{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .burger{display:flex}
  .nav{position:absolute;top:100%;left:0;right:0;height:calc(100vh - 72px);height:calc(100dvh - 72px);background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 32px;transform:translateY(-10px);opacity:0;visibility:hidden;transition:transform .25s,opacity .25s,visibility .25s;overflow-y:auto}
  .nav.open{transform:none;opacity:1;visibility:visible}
  .nav a{padding:16px 4px;border-bottom:1px solid var(--line);font-size:18px}
  .nav a:not(.btn)::after{display:none}
  .nav .btn{margin-top:20px;border:0;min-height:54px}
  .top-l span.opt{display:none}
}
@media(max-width:860px){
  .sec{padding:64px 0}
  .hero{padding:48px 0 56px}
  .hero .w,.panel,.why,.ct{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:22px;padding:24px}
  .stat{border:0;padding:0}
  .stat b{font-size:36px}
  .logo{width:calc((100% - 20px)/3);height:76px;padding:12px}
  .logo img{max-height:40px}
  .logos{gap:10px}
  .grid3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .panel,.ct{padding:24px}
  .panel h3{font-size:30px}
  .why-g,.row2{grid-template-columns:1fr}
  .ctas .btn{flex:1 1 100%}
  .ftr-g{grid-template-columns:1fr}
  .hdr .w{height:72px}
  .brand img{height:38px}
  .brand span{display:none}
}
@media(max-width:560px){
  .top .w{justify-content:center}
  .top-r{display:none}
}

/* Pages ERP */
.more{margin-top:14px;font-weight:600}
.more a{color:var(--acc);text-decoration:none}
.more a:hover{text-decoration:underline}
.crumbs{font-size:14px;color:var(--mut);margin-bottom:18px}
.crumbs a{color:var(--mut)}
.erp-hero h1{font-size:clamp(38px,5vw,60px)}
.erp-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px}
.erp-card .tag{margin-bottom:18px}
.faq{max-width:860px;margin-top:36px;display:grid;gap:12px}
.faq-i{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 24px}
.faq-i summary{cursor:pointer;font-weight:600;font-size:18px;list-style-position:outside}
.faq-i p{color:var(--ink2);margin-top:12px}
.cta-box{text-align:center;max-width:760px;margin:0 auto}
.cta-box .h2{margin:0 auto}
.cta-box .ctas{justify-content:center;margin-top:28px}
@media(max-width:860px){.erp-card{padding:24px}}

/* Logos clients : bandeau défilant */
.marquee{display:grid;gap:16px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.mq-row{overflow:hidden}
.mq-track,.mq-dup{display:flex;gap:16px;width:max-content}
.mq-track{animation:mq 45s linear infinite}
.mq-track.rev{animation-direction:reverse;animation-duration:50s}
.mq-row:hover .mq-track{animation-play-state:paused}
.marquee .logo{width:200px;flex:0 0 200px}
@keyframes mq{from{transform:translateX(0)}to{transform:translateX(calc(-50% - 8px))}}
@media(max-width:860px){.marquee .logo{width:140px;flex-basis:140px}.marquee,.mq-track,.mq-dup{gap:10px}@keyframes mq{to{transform:translateX(calc(-50% - 5px))}}}
@media (prefers-reduced-motion:reduce){.mq-track{animation:none;flex-wrap:wrap;width:auto;justify-content:center}.mq-dup{display:none}.marquee{-webkit-mask-image:none;mask-image:none}}

/* Logo horizontal dans l'en-tête */
.brand picture{display:block;line-height:0}
.brand img{height:52px;width:auto}
@media(max-width:860px){.brand img{height:38px}}
.nav a{white-space:nowrap}
@media(min-width:901px) and (max-width:1180px){.nav{gap:18px}.nav a{font-size:15px}.nav .btn{padding:0 16px}.brand img{height:44px}}
.brand{flex-shrink:0}