:root{
  --ink:#131313;
  --blue:#1D5FA6;
  --blue-dark:#123f70;
  --paper:#ffffff;
  --panel:#F4F4F2;
  --ardoise:#54544f;
  --border:rgba(19,19,19,0.13);
}
*{box-sizing:border-box;margin:0;padding:0;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1080px;margin:0 auto;padding:0 40px;}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--blue);
}
a{color:inherit;text-decoration:none;}

/* SURTITRE FAISANT OFFICE DE TITRE DE LAME (pas de H2 en dessous) */
.band-title{
  font-family:'Playfair Display',serif;
  font-weight:600;
  font-size:26px;
  letter-spacing:-0.005em;
  text-transform:none;
}

/* EN-TETE COMMUN */
header.hero{padding:48px 0 0;}
.hero-top{
  display:flex;justify-content:space-between;align-items:center;
  padding-bottom:32px;border-bottom:1px solid var(--border);
}
.wordmark img{height:40px;display:block;}
nav{display:flex;gap:28px;font-size:14px;color:var(--ardoise);}
nav a:hover{color:var(--blue);}
nav a.active{color:var(--ink);border-bottom:1px solid var(--blue);padding-bottom:3px;}

.hero-body{padding:64px 0 0;max-width:760px;}
h1{
  font-family:'Playfair Display',serif;
  font-weight:600;
  font-size:44px;
  line-height:1.18;
  letter-spacing:-0.01em;
  color:var(--ink);
}
h1.small{font-size:34px;}
.hero-sub{margin-top:24px;font-size:17px;line-height:1.65;color:var(--ardoise);max-width:600px;}
.hero-cta{
  display:inline-block;margin-top:32px;
  font-family:'IBM Plex Mono', monospace;font-size:13px;letter-spacing:0.02em;
  color:var(--ink);border-bottom:1px solid var(--blue);padding-bottom:3px;
}
.hero-cta:hover{color:var(--blue);}

.curve-band{padding:48px 0 0;}
svg.curve{width:100%;height:100px;display:block;}
.curve path{
  fill:none;stroke:var(--blue);stroke-width:1.4;
  stroke-dasharray:900;stroke-dashoffset:900;
  animation:draw 2.1s ease-out forwards;
}
@keyframes draw{to{stroke-dashoffset:0;}}
.hero-divider{border-top:1px solid var(--border);margin-top:48px;}

/* BANDEAU-TITRE TEINTE (pages secondaires) — la barre logo/nav reste blanche */
.title-band{background:var(--blue);padding:56px 0 64px;margin-top:0;}
.title-band .eyebrow{color:#fff;}
.title-band h1{color:#fff;}
.title-band .hero-sub{color:rgba(255,255,255,0.82);}

/* PILIERS (accueil) */
section.piliers{padding:64px 0 80px;}
.piliers-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:32px;}
.pilier{padding:0 32px;border-left:1px solid var(--border);}
.pilier:first-child{padding-left:0;border-left:none;}
.pilier-icon{width:34px;height:34px;margin-bottom:20px;}
.pilier h3{font-family:'Playfair Display',serif;font-weight:600;font-size:21px;margin-bottom:12px;}
.pilier p{font-size:14.5px;line-height:1.65;color:var(--ardoise);}
.pilier-link{display:inline-block;margin-top:16px;font-size:13px;font-family:'IBM Plex Mono',monospace;color:var(--blue);}
.pilier-link:hover{color:var(--blue-dark);}

section.piliers.on-blue{background:var(--blue);color:#fff;}
section.piliers.on-blue .eyebrow{color:#fff;}
section.piliers.on-blue .pilier{border-left-color:rgba(255,255,255,0.3);}
section.piliers.on-blue .pilier h3{color:#fff;}
section.piliers.on-blue .pilier p{color:rgba(255,255,255,0.82);}
section.piliers.on-blue .pilier-link{color:#fff;}
section.piliers.on-blue .pilier-link:hover{color:rgba(255,255,255,0.7);}
section.piliers.on-blue .pilier-icon path,
section.piliers.on-blue .pilier-icon ellipse{stroke:#fff;}

/* BANDE CLAIRE (equipe / gouvernance) */
section.light-band{background:var(--paper);padding:72px 0;border-top:1px solid var(--border);}
.light-band-body{max-width:700px;margin-top:24px;}
.light-band-body p{font-size:19px;line-height:1.7;font-family:'Playfair Display',serif;font-weight:500;color:var(--ink);}
.light-band-body .name{color:var(--blue);}
.light-band-body a.name:hover{color:var(--blue-dark);}
.light-band-link{display:inline-block;margin-top:28px;font-size:13px;font-family:'IBM Plex Mono',monospace;color:var(--blue);border-bottom:1px solid var(--blue);padding-bottom:3px;}
.light-band-link:hover{color:var(--blue-dark);border-color:var(--blue-dark);}

/* SECTIONS GENERIQUES DE CONTENU */
section.page-section{padding:64px 0;}
section.page-section.panel{background:var(--panel);}
.section-title{font-family:'Playfair Display',serif;font-weight:600;font-size:36px;line-height:1.15;letter-spacing:-0.01em;margin:12px 0 24px;max-width:680px;}
.prose{font-size:15px;line-height:1.8;color:var(--ardoise);max-width:720px;}
.prose + .prose{margin-top:16px;}
.prose strong{color:var(--ink);font-weight:500;}
.ext-link{color:var(--blue);border-bottom:1px solid var(--blue);padding-bottom:1px;}
.ext-link:hover{color:var(--blue-dark);border-color:var(--blue-dark);}

/* LISTE A PUCES SOBRE (domaines d'expertise, clientele) */
ul.plain-list{margin-top:16px;max-width:720px;}
ul.plain-list li{
  font-size:14.5px;line-height:1.7;color:var(--ardoise);
  padding:10px 0;border-bottom:1px solid var(--border);
  list-style:none;
}
ul.plain-list li::before{content:"—";color:var(--blue);margin-right:10px;}

/* ETAPES NUMEROTEES (vrai processus sequentiel) */
ol.steps{margin-top:20px;counter-reset:step;max-width:640px;}
ol.steps li{
  list-style:none;display:flex;gap:16px;padding:16px 0;
  border-bottom:1px solid var(--border);align-items:baseline;
}
ol.steps li::before{
  counter-increment:step;content:counter(step);
  font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--blue);
  min-width:20px;
}
ol.steps li span{font-size:14.5px;line-height:1.65;color:var(--ardoise);}

/* GRILLE EQUIPE */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:32px;border-top:1px solid var(--border);border-left:1px solid var(--border);}
.team-card{padding:24px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);}
.team-card .name{font-family:'Playfair Display',serif;font-weight:600;font-size:16px;}
.team-card .role{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--blue);text-transform:uppercase;letter-spacing:0.03em;margin:6px 0 10px;}
.team-card p{font-size:13.5px;line-height:1.6;color:var(--ardoise);}

/* LISTE DE REFERENCES / ETUDES (cas concrets) */
.case-list{margin-top:28px;border-top:1px solid var(--border);}
.case{padding:26px 0;border-bottom:1px solid var(--border);}
.case-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;}
.case-name{font-family:'Playfair Display',serif;font-weight:600;font-size:18px;}
.case-period{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--blue);white-space:nowrap;}
.case p{margin-top:8px;font-size:14.5px;line-height:1.7;color:var(--ardoise);max-width:700px;}
.case a.ext-link{font-size:13px;margin-top:10px;display:inline-block;}

/* TABLEAU SIMPLE (options) */
table.simple{width:100%;max-width:640px;margin-top:20px;border-collapse:collapse;font-size:14px;}
table.simple td{padding:12px 0;border-bottom:1px solid var(--border);color:var(--ardoise);}
table.simple tr:first-child td{border-top:1px solid var(--border);}

/* ACTUALITES */
section.actus{padding:72px 0;background:var(--panel);border-top:1px solid var(--border);}
.actus-list{margin-top:28px;border-top:1px solid var(--border);}
.actu-row{display:flex;gap:28px;padding:22px 0;border-bottom:1px solid var(--border);align-items:baseline;}
.actu-date{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--blue);min-width:96px;}
.actu-title{font-size:15px;color:var(--ink);}
.actu-title:hover{color:var(--blue);}
.actu-tag{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--ardoise);margin-left:auto;text-transform:uppercase;letter-spacing:0.04em;white-space:nowrap;}
.actus-note{margin-top:16px;font-size:12.5px;color:var(--ardoise);font-style:italic;}
.actus-foot{margin-top:20px;}
.actus-foot a{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--blue);}

/* REFERENCES (mur de clients) */
section.references{padding:64px 0;background:var(--panel);border-top:1px solid var(--border);}
.ref-grid{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--border);border-left:1px solid var(--border);}
.ref-cell{border-right:1px solid var(--border);border-bottom:1px solid var(--border);padding:22px 24px;font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--ardoise);background:var(--paper);}
.ref-note{margin-top:18px;font-size:12.5px;color:var(--ardoise);}
.references-foot{margin-top:20px;}
.references-foot a{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--blue);}

/* CONTACT + FOOTER (repris sur chaque page) */
section.contact{background:var(--blue);border-top:1px solid rgba(255,255,255,0.2);padding:56px 0 64px;}
.contact-inner{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:24px;}
.contact-info{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.82);}
.contact-info strong{color:#fff;font-weight:500;}
.contact-cta{
  font-family:'IBM Plex Mono',monospace;font-size:13px;font-weight:500;letter-spacing:0.02em;
  background:#fff;color:var(--blue);border:1px solid #fff;padding:13px 26px;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:0 4px 14px rgba(0,0,0,0.14);
  transition:transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.contact-cta:hover{background:rgba(255,255,255,0.9);transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,0.18);}

footer{background:var(--blue);border-top:1px solid rgba(255,255,255,0.2);padding:24px 0 40px;font-size:12px;color:rgba(255,255,255,0.75);}
.footer-inner{display:flex;justify-content:space-between;align-items:center;}
footer a{color:rgba(255,255,255,0.75);border-bottom:1px solid rgba(255,255,255,0.35);}
footer a:hover{color:#fff;border-color:#fff;}

@media (max-width:760px){
  .wrap{padding:0 24px;}
  h1{font-size:32px;}
  nav{display:none;}
  .piliers-grid{grid-template-columns:1fr;gap:40px;}
  .pilier{border-left:none;padding-left:0;}
  .ref-grid{grid-template-columns:repeat(2,1fr);}
  .team-grid{grid-template-columns:1fr;}
  .contact-inner{flex-direction:column;align-items:flex-start;}
  .actu-row{flex-wrap:wrap;}
  .actu-tag{margin-left:0;}
}