/* BET ELIA — feuille de style */
:root{
  /* Couleurs issues du logo BET ELIA */
  --logo-grey:#666666;
  --logo-green:#76943F;
  --ink:#3A3A3A;
  --ink-soft:#595959;
  --muted:#666666;
  --line:#E4E5E0;
  --line-strong:#C8CAC2;
  --ground:#F4F5F0;
  --placeholder:#E6EADF;
  --accent:#76943F;
  --accent-text:#566F2A;
  --accent-dark:#4A6124;
  --accent-light:#A9C47A;
  --dark:#333333;
  --darker:#2A2A2A;
  --leaf:0 28px 0 28px;
  --leaf-sm:0 14px 0 14px;
  --display:'Century Gothic','Avenir Next','Futura','Segoe UI',system-ui,sans-serif;
  --body:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
  --gutter:clamp(20px,6.5vw,96px);
  --section:clamp(64px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-text)}
a:hover{color:var(--accent-dark)}
h1,h2,h3{font-family:var(--display);font-weight:400;margin:0;color:var(--ink)}
h1{font-size:clamp(36px,5vw,60px);line-height:1.08;letter-spacing:-.01em}
h2{font-size:clamp(30px,3.4vw,42px);line-height:1.15}
h3{font-size:clamp(20px,1.8vw,24px);font-weight:500;line-height:1.3}
p{margin:0}
.wrap{max-width:1440px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.section{padding-top:var(--section);padding-bottom:var(--section)}
.alt{background:var(--ground)}
.eyebrow{font-size:13px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent-text);font-weight:600;display:flex;align-items:flex-start;gap:12px}
.eyebrow::before{content:"";width:11px;height:15px;flex-shrink:0;margin-top:1px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 30'%3E%3Cpath d='M11 0C11 0 22 13 22 19A11 11 0 0 1 0 19C0 13 11 0 11 0Z' fill='%2376943F'/%3E%3C/svg%3E") no-repeat center/contain}
.hl{color:var(--accent)}
.lead{font-size:clamp(18px,1.5vw,20px);color:var(--ink-soft);line-height:1.55}
.text-soft{color:var(--ink-soft)}
.stack{display:flex;flex-direction:column;gap:20px}
.head{max-width:720px;margin-bottom:56px}

/* Boutons */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 28px;border-radius:var(--leaf-sm);letter-spacing:.02em;font-weight:600;font-size:17px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:background .15s}
.btn-primary{background:var(--accent-text);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}

/* En-tête */
.site-header{position:sticky;top:0;z-index:10;border-top:3px solid var(--accent);background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo img{height:56px;width:auto}
.nav{display:flex;align-items:center;gap:36px;font-weight:500}
.nav a{color:var(--ink);text-decoration:none}
.nav a:hover{color:var(--accent)}
.nav .btn{color:#fff;padding:10px 20px;min-height:44px;font-size:16px}
.menu-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:var(--leaf-sm);width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer;color:var(--ink)}

/* Hero */
.hero .wrap{display:grid;grid-template-columns:7fr 4fr;gap:clamp(32px,6vw,96px);align-items:center}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:8px}
.stats{background:#fff;border:1px solid var(--line);border-radius:var(--leaf);position:relative;z-index:1}
.stat{padding:26px 32px;border-bottom:1px solid var(--line)}
.stat:last-child{border-bottom:none}
.stat strong{display:block;font-family:var(--display);font-size:clamp(36px,3.4vw,48px);font-weight:400;color:var(--accent);line-height:1.2}
.stat span{color:var(--ink-soft);font-size:16px}

/* Motif goutte (logo) */
.hero,.contact{position:relative;overflow:hidden}
.drop-motif{position:absolute;pointer-events:none;z-index:0}
.hero .drop-motif{width:520px;right:-120px;bottom:-160px;opacity:.07}
.contact .drop-motif{width:420px;left:-140px;bottom:-140px;opacity:.06}
.hero .wrap,.contact .wrap{position:relative;z-index:1}

/* Clients */
.clients .wrap{display:flex;align-items:center;gap:64px;padding-top:40px;padding-bottom:40px}
.clients-title{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);font-weight:600;flex-shrink:0}
.clients ul{list-style:none;margin:0;padding:0;flex-grow:1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px 40px;font-family:var(--display);font-size:22px;font-weight:400;letter-spacing:.24em;color:#858585}
.clients-wrap{border-bottom:1px solid var(--line)}

/* Enjeux */
.stakes{display:grid;grid-template-columns:5fr 6fr;gap:clamp(32px,6vw,120px);align-items:center}
.targets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.stakes-side{display:flex;flex-direction:column;gap:40px}
.budget{display:flex;gap:20px;align-items:flex-start;background:var(--ground);border-radius:var(--leaf);padding:28px 32px}
.budget svg{width:36px;height:36px;stroke:var(--accent);flex-shrink:0}
.budget h3{margin:20px 0 6px;padding-top:20px;border-top:1px solid var(--line-strong)}
.budget p.budget-figure{font-family:var(--display);font-size:clamp(40px,4vw,56px);line-height:1.1;color:var(--accent);font-weight:500}
.budget p.budget-caption{font-size:15px;margin-top:6px}
.budget .source{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.budget p{color:var(--ink-soft)}
.targets-title{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:16px}
.regs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.reg{border-top:1px solid var(--line-strong);padding-top:16px}
.reg .targets-title{margin-bottom:8px}
.reg p{color:var(--ink-soft);font-size:16px}
.reg strong{color:var(--ink)}
.services-cta{margin-top:24px;background:var(--dark);color:#D9D9D9;border-radius:var(--leaf);padding:28px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.services-cta strong{color:#fff;font-family:var(--display);font-weight:500;font-size:20px;margin-right:6px}
.target{border-top:3px solid var(--accent);padding-top:20px}
.target strong{display:block;font-family:var(--display);font-size:clamp(40px,4vw,56px);font-weight:400;line-height:1.1}
.target span{color:var(--ink-soft)}

/* Cas pratique */
.case-study{padding-bottom:var(--section)}
.cs-box{border:1px solid var(--line);border-radius:var(--leaf);padding:clamp(28px,4vw,56px);display:grid;grid-template-columns:4fr 7fr;gap:24px clamp(32px,5vw,80px);align-items:center}
.cs-intro{display:flex;flex-direction:column;gap:16px}
.cs-intro h2{font-size:clamp(26px,2.6vw,34px)}
.cs-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.cs-steps li{background:var(--ground);border-radius:var(--leaf-sm);padding:24px;display:flex;flex-direction:column;gap:6px}
.cs-steps strong{font-family:var(--display);font-size:clamp(28px,2.6vw,36px);font-weight:500;line-height:1.15}
.cs-label{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}
.cs-note{font-size:15px;color:var(--ink-soft)}
.cs-steps .cs-result{background:var(--accent-text)}
.cs-steps .cs-result strong,.cs-steps .cs-result .cs-note{color:#fff}
.cs-steps .cs-result .cs-label{color:#DDE8C8}
.cs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.cs-actions{margin:0;padding-left:20px;color:var(--ink-soft);display:flex;flex-direction:column;gap:4px}
.cs-foot{grid-column:1/-1;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:20px}
.cs-foot strong{color:var(--ink)}

/* Services */
.services-head{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:56px}
.services-head .lead{max-width:440px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--leaf);transition:border-color .2s,transform .2s;padding:36px;display:flex;flex-direction:column;gap:16px}
.card p{color:var(--ink-soft)}
.card:hover{border-color:var(--accent-light);transform:translateY(-2px)}
.card svg{width:40px;height:40px;stroke:var(--accent);padding:8px;background:var(--ground);border-radius:var(--leaf-sm);box-sizing:content-box}
.card-dark{background:var(--dark);border-color:var(--dark);justify-content:space-between}
.card-dark h3{color:#fff}
.card-dark p{color:#D7D9D6}
.card-dark .btn{align-self:flex-start}

/* Méthode */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;list-style:none;margin:0;padding:0}
.steps li{border-top:2px solid var(--accent-light);padding-top:24px;display:flex;flex-direction:column;gap:12px}
.steps .num{font-family:var(--display);font-weight:600;color:var(--accent-text);letter-spacing:.12em;font-size:18px}
.steps p{color:var(--ink-soft)}

/* Références */
.case{background:#fff;border:1px solid var(--line);border-radius:var(--leaf);overflow:hidden;display:flex;flex-direction:column}
.case-img{aspect-ratio:16/9;background:var(--placeholder);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:15px}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-fig{background:var(--dark);color:#fff;padding:28px 32px;display:flex;flex-direction:column;gap:2px}
.case-fig strong{font-family:var(--display);font-size:clamp(36px,3.4vw,48px);font-weight:500;line-height:1.15;color:var(--accent-light)}
.case-fig span{color:#D7D9D6;font-size:15px}
.case-fig-empty{background:var(--placeholder)}
.case-fig-empty strong,.case-fig-empty span{color:var(--muted)}
.case-kpis{list-style:none;margin:8px 0 0;padding:16px 0 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px;font-size:15px;color:var(--ink-soft)}
.case-kpis strong{color:var(--ink)}
.case-body p.case-note{font-size:13px;color:var(--muted)}
.case-body{padding:32px;display:flex;flex-direction:column;gap:12px}
.case-tag{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-text);font-weight:600}
.case-body p{color:var(--ink-soft);font-size:16px}

/* À propos */
.about{display:grid;grid-template-columns:4fr 7fr;gap:clamp(32px,6vw,120px);align-items:center}
.portrait{aspect-ratio:4/5;background:var(--placeholder);border-radius:0 48px 0 48px;display:flex;align-items:center;justify-content:center;color:var(--muted);overflow:hidden}
.portrait img{width:100%;height:100%;object-fit:cover}
.tags{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:4px 0 0;padding:0}
.tags li{padding:6px 16px;border:1px solid var(--line-strong);border-radius:var(--leaf-sm);font-size:15px}

/* Contact */
.contact{background:var(--dark);color:#fff}
.contact .wrap{display:grid;grid-template-columns:5fr 6fr;gap:clamp(32px,6vw,120px)}
.contact h2{color:#fff}
.contact .eyebrow{color:var(--accent-light)}
.contact .lead{color:#D7D9D6}
.contact-info{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.contact-info a{color:#fff}
.form{background:#fff;color:var(--ink);border-radius:var(--leaf);padding:clamp(24px,3vw,40px);display:flex;flex-direction:column;gap:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:15px;font-weight:600}
.form input,.form select,.form textarea{font:inherit;font-weight:400;font-size:16px;color:var(--ink);border:1px solid var(--line-strong);border-radius:2px;padding:12px 14px;background:#fff;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.form textarea{resize:vertical;min-height:130px}
.form .consent{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400;font-size:14px;color:var(--ink-soft)}
.form .consent input{width:18px;height:18px;margin-top:3px;flex-shrink:0}
.form .btn{align-self:flex-start}
.hidden{display:none}

/* Pied de page */
.site-footer{background:var(--darker);color:#BFC2BE;font-size:15px}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:36px;padding-bottom:36px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:28px}
.site-footer a{color:#BFC2BE}
.site-footer a:hover{color:#fff}

/* Pages de texte (mentions légales…) */
.legal{max-width:820px}
.legal h1{margin-bottom:32px}
.legal h2{font-size:26px;margin:40px 0 12px}
.legal p,.legal li{color:var(--ink-soft)}
.legal ul{padding-left:20px}
.todo{background:#FFF4D6;padding:0 4px;border-radius:3px;color:#6B4E00}

/* Focus clavier */
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* Tablette */
@media (max-width:1080px){
  .cs-box{grid-template-columns:1fr}
  .hero .wrap,.stakes,.about,.contact .wrap{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .services-head{flex-direction:column;align-items:flex-start;gap:20px}
  .clients .wrap{flex-direction:column;align-items:flex-start;gap:20px}
  .portrait{max-width:420px}
}
/* Mobile */
@media (max-width:760px){
  body{font-size:16px}
  .site-header .wrap{height:72px}
  .logo img{height:44px}
  .menu-toggle{display:inline-flex}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px var(--gutter) 20px}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:14px;border-bottom:none}
  .grid-3,.steps,.form-row,.cs-steps,.regs{grid-template-columns:1fr}
  .services-cta{flex-direction:column;align-items:flex-start;padding:24px}
  .targets{gap:12px}
  .target strong{font-size:30px}
  .target span{font-size:14px}
  .clients ul{font-size:19px;justify-content:flex-start}
  .card{padding:28px}
  .hero-actions .btn{width:100%}
}