:root{
  --ink:#20262b;
  --muted:#626c74;
  --paper:#f5f4f0;
  --white:#fff;
  --line:#d7d8d5;
  --steel:#40566b;
  --steel-dark:#243544;
  --max:1500px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.site-header{position:sticky;top:0;z-index:50;background:rgba(249,248,245,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(31,37,42,.09)}
.header-inner{max-width:var(--max);margin:auto;min-height:78px;padding:0 34px;display:flex;align-items:center;gap:28px}
.brand-logo{display:block;width:235px;flex:0 0 235px}
.brand-logo img{width:100%;height:auto}
.main-nav{margin-left:auto;display:flex;gap:25px;align-items:center;font-size:12px}
.main-nav a{padding:29px 0 23px;border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav a.active{border-bottom-color:var(--steel)}
.header-cta{background:var(--steel-dark);color:white;padding:12px 19px;font-size:12px;letter-spacing:.03em}
.menu-toggle{display:none;border:0;background:none;font-size:25px;margin-left:auto}

/* HERO */
.hero{background:#14191d}
.hero-photo{max-width:1800px;height:min(780px,calc(100vh - 78px));min-height:650px;margin:auto;position:relative;overflow:hidden}
.hero-photo>img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,12,15,.72) 0%,rgba(8,12,15,.38) 35%,rgba(8,12,15,.06) 66%),linear-gradient(0deg,rgba(8,12,15,.2),transparent 45%)}
.hero-copy{position:absolute;z-index:3;left:max(45px,calc((100% - 1500px)/2 + 34px));top:50%;transform:translateY(-44%);max-width:715px;color:white}
.eyebrow,.section-kicker{margin:0 0 15px;font-size:11px;letter-spacing:.19em;font-weight:700}
.hero h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(48px,5vw,80px);line-height:1.03;font-weight:400;margin:0 0 22px}
.hero-lead{font-size:clamp(17px,1.4vw,21px);line-height:1.55;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;min-height:49px;align-items:center;justify-content:center;padding:0 22px;font-size:13px;font-weight:700}
.btn-primary{background:#fff;color:var(--ink)}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff}
.measure{position:absolute;z-index:2;color:#fff;font-size:11px;letter-spacing:.02em;display:flex;align-items:center;gap:8px;text-shadow:0 1px 7px #000}
.measure:after{content:"";width:80px;height:1px;background:rgba(255,255,255,.65)}
.m-dot{width:7px;height:7px;border:1px solid white;border-radius:50%;background:rgba(255,255,255,.22)}
.measure-a{top:21%;right:22%}
.measure-b{bottom:18%;right:8%}
.measure-c{bottom:12%;left:28%}

/* 4 value strip */
.proof-strip{max-width:var(--max);margin:auto;display:grid;grid-template-columns:repeat(4,1fr);background:#faf9f6;border-bottom:1px solid var(--line)}
.proof-strip article{padding:34px 30px;border-right:1px solid var(--line);min-height:170px}
.proof-strip article:last-child{border-right:0}
.proof-strip span{font-family:Georgia,serif;color:#9ea5aa;font-size:25px}
.proof-strip h2{font-family:Georgia,serif;font-size:20px;font-weight:400;margin:15px 0 7px}
.proof-strip p{font-size:13px;color:var(--muted);margin:0}

.section{max-width:var(--max);margin:auto;padding:92px 34px}
.section h2,.reference-project h2,.contact-band h2{font-family:Georgia,"Times New Roman",serif;font-size:clamp(36px,3vw,53px);line-height:1.08;font-weight:400;margin:0}
.section-kicker{color:var(--steel)}

/* Point 1 + 3 : kicker et texte explicatif nettement plus visibles */
.need-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:74px;align-items:end;margin-bottom:46px}
.need-kicker{font-size:18px;line-height:1;letter-spacing:.18em;font-weight:800;color:var(--steel);margin:0 0 21px}
.need-head h2{font-family:Georgia,serif;font-size:clamp(39px,3.3vw,57px);font-weight:400;line-height:1.06;margin:0}
.need-intro{font-family:Georgia,serif;font-size:clamp(20px,1.5vw,30px);line-height:1.48;margin:0;color:#3e474e;max-width:800px}

/* 4 étapes + images */
.process-grid{display:grid;grid-template-columns:1fr 36px 1fr 36px 1fr 36px 1fr;align-items:stretch}
.process-card{background:#fff;border:1px solid var(--line);min-width:0;overflow:hidden}
.process-image{height:215px;overflow:hidden;background:#ddd}
.process-image img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.process-card:hover .process-image img{transform:scale(1.02)}
.process-copy{padding:24px 23px 27px}
.process-num{font-family:Georgia,serif;color:#929ba2;font-size:24px}
.process-copy h3{font-family:Georgia,serif;font-weight:400;font-size:25px;margin:14px 0 10px}
.process-copy p{font-size:14px;color:var(--muted);margin:0}
.process-arrow{display:grid;place-items:center;font-family:Georgia,serif;font-size:28px;color:#97a0a6}

/* On sait faire — icônes au lieu de photos */
.capabilities{padding-top:62px}
.cap-head{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end;margin-bottom:38px}
.cap-head h2{font-family:Georgia,serif;font-size:clamp(38px,3vw,52px);font-weight:400;line-height:1.08;margin:0}
.cap-head>p{font-family:Georgia,serif;font-size:17px;color:var(--muted);margin:0;max-width:700px}
.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid var(--line);border-top:1px solid var(--line)}
.capability-grid article{position:relative;min-height:235px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#faf9f6}
.capability-grid svg{width:37px;height:37px;fill:none;stroke:var(--steel);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.capability-grid article>span{position:absolute;top:27px;right:27px;color:#a5aaae;font-family:Georgia,serif;font-size:20px}
.capability-grid h3{font-family:Georgia,serif;font-weight:400;font-size:22px;line-height:1.15;margin:32px 0 10px}
.capability-grid p{font-size:13px;color:var(--muted);margin:0}

/* Projet : 2 situations au lieu de 3 */
.centered{text-align:center;margin:0 auto 38px}
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.choice-card{background:white;border:1px solid var(--line);overflow:hidden}
.choice-photo{height:355px;overflow:hidden;background:#dad9d4}
.choice-photo>img{width:100%;height:100%;object-fit:cover}
.choice-content{position:relative;padding:30px 34px 36px;min-height:250px}
.choice-num{position:absolute;right:32px;top:25px;font-family:Georgia,serif;font-size:55px;color:#e3e2de}
.choice-content h3{font-family:Georgia,serif;font-weight:400;font-size:29px;line-height:1.15;max-width:520px;margin:8px 0 17px}
.choice-content p{font-size:15px;color:var(--muted);max-width:650px;margin:0}
.house-placeholder{position:relative;display:grid;place-items:center;background:linear-gradient(135deg,#e9e8e4,#d4d5d2);color:#64717c}
.house-placeholder svg{position:absolute;width:65%;height:75%;fill:none;stroke:rgba(64,86,107,.28);stroke-width:4}
.house-placeholder span{position:relative;z-index:2;text-align:center;font-size:12px;letter-spacing:.12em;font-weight:700;background:rgba(245,244,240,.78);padding:12px 15px}
.house-placeholder small{font-weight:400;letter-spacing:.05em}

/* Réalisation */
.reference-project{background:var(--steel-dark);color:white;padding:82px max(34px,calc((100% - 1500px)/2 + 34px))}
.reference-inner{max-width:1432px;margin:auto;display:grid;grid-template-columns:.52fr 1.48fr;gap:55px;align-items:start}
.reference-project .section-kicker{color:#c9d1d7}
.project-intro p:not(.section-kicker){color:#ced5da}
.project-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.project-gallery figure{margin:0;background:#1c2a35}
.project-gallery img{width:100%;height:250px;object-fit:cover}
.project-gallery figcaption{display:flex;flex-direction:column;gap:4px;padding:14px 15px 18px}
.project-gallery figcaption strong{font-size:14px}.project-gallery figcaption span{font-size:12px;color:#bcc6cc}
.text-link{display:inline-flex;gap:12px;align-items:center;margin-top:18px;font-size:13px;font-weight:700;border-bottom:1px solid #9ba5ab;padding-bottom:4px}
.text-link.light{color:#fff;border-color:rgba(255,255,255,.45)}

/* immobilier */
.realestate{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;border-bottom:1px solid var(--line)}
.realestate p:not(.section-kicker){font-size:17px;color:var(--muted);margin:0}

/* contact AVANT à propos */
.contact-band{background:#1e2b35;color:#fff;padding:80px max(34px,calc((100% - 1500px)/2 + 34px));display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:center;scroll-margin-top:78px}
.contact-band .section-kicker{color:#c7d0d7}
.contact-intro{font-size:17px;color:#c9d1d6;max-width:760px}
.contact-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.contact-actions span{font-size:13px;color:#c3ccd2}
.invert{background:#fff;color:#1e2b35}

/* founder */
.founder{display:grid;grid-template-columns:.82fr 1.38fr;gap:65px;align-items:stretch}
.founder-photo{min-height:320px;background:#e2e1dc;border:1px dashed #a5a9ac;display:grid;place-items:center;text-align:center;color:#81888d;font-size:13px;letter-spacing:.14em}
.founder-lead{font-family:Georgia,serif;font-size:21px!important;color:#303940!important;line-height:1.5}
.founder-copy>p{color:var(--muted);font-size:16px}
.founder-points{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:0 26px}
.founder-points span{border-bottom:1px solid var(--line);padding:11px 0;font-size:13px}

/* footer */
.site-footer{max-width:var(--max);min-height:115px;margin:auto;padding:25px 34px;display:grid;grid-template-columns:250px 1fr auto;gap:35px;align-items:center;color:#6a7278;font-size:12px}
.site-footer>img{width:220px}
.site-footer div{display:flex;gap:10px}

/* Responsive */
@media(max-width:1180px){
  .main-nav{display:none}.menu-toggle{display:block}.header-cta{margin-left:auto}
  .menu-open .main-nav{display:flex;position:absolute;top:78px;left:0;right:0;flex-direction:column;gap:0;background:#f8f7f4;padding:10px 28px 20px;border-bottom:1px solid var(--line)}
  .menu-open .main-nav a{padding:12px 0;width:100%;border:0}
  .measure{display:none}
  .process-grid{grid-template-columns:1fr 1fr;gap:18px}.process-arrow{display:none}
  .capability-grid{grid-template-columns:repeat(2,1fr)}
  .reference-inner,.realestate,.contact-band,.founder{grid-template-columns:1fr}
}
@media(max-width:780px){
  .header-inner{padding:0 18px;min-height:70px}.brand-logo{width:190px;flex-basis:190px}.header-cta{display:none}
  .hero-photo{min-height:660px;height:calc(100vh - 70px)}
  .hero-copy{left:22px;right:22px;bottom:42px;top:auto;transform:none}.hero h1{font-size:43px}.hero-lead{font-size:16px}
  .proof-strip{grid-template-columns:1fr 1fr}.proof-strip article:nth-child(2n){border-right:0}
  .section{padding:68px 20px}
  .need-head,.cap-head{grid-template-columns:1fr;gap:26px}
  .need-kicker{font-size:16px}.need-intro{font-size:20px}
  .process-grid,.capability-grid,.choice-grid,.project-gallery,.founder-points{grid-template-columns:1fr}
  .choice-photo{height:270px}
  .reference-project,.contact-band{padding-left:20px;padding-right:20px}
  .site-footer{grid-template-columns:1fr;padding:25px 20px}
}