:root{--navy:#061331;--blue:#0b3ea8;--gold:#f7d449;--ink:#0d1324;--muted:#59657a;--line:#e5ebf5;--soft:#f6f8fc;--white:#fff;--shadow:0 22px 70px rgba(4,16,44,.13);--radius:26px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff;line-height:1.58}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:min(1160px,calc(100% - 36px));margin-inline:auto}.topbar{background:var(--navy);color:#dfe8ff;font-size:.92rem}.topbar .container{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:10px 0;flex-wrap:wrap}.topbar a{color:#fff;font-weight:800}header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}.brand img{width:178px;border-radius:14px;box-shadow:0 6px 20px rgba(0,0,0,.07)}.links{display:flex;gap:22px;align-items:center;font-weight:850;color:#1b2540;font-size:.95rem}.links a{opacity:.84}.links a:hover{opacity:1;color:var(--blue)}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 18px;border-radius:999px;border:1px solid transparent;font-weight:900;letter-spacing:.01em;transition:.2s ease;white-space:nowrap}.btn.primary{background:var(--gold);color:#061331;box-shadow:0 12px 28px rgba(247,212,73,.28)}.btn.dark{background:var(--navy);color:#fff}.btn.outline{border-color:#cad4e5;color:var(--navy);background:#fff}.btn:hover{transform:translateY(-2px)}.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--navy);color:white}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,14,37,.96) 0%,rgba(3,14,37,.88) 43%,rgba(3,14,37,.45) 72%,rgba(3,14,37,.1) 100%),url('/assets/hero-bt-travaux.jpg') center/cover no-repeat;z-index:-2}.hero:after{content:"";position:absolute;inset:auto -10% -25% auto;width:660px;height:660px;border-radius:50%;background:radial-gradient(circle,rgba(247,212,73,.18),transparent 66%);z-index:-1}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;min-height:690px;padding:74px 0}.eyebrow{display:inline-flex;gap:10px;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:9px 13px;border-radius:999px;color:#eaf0ff;font-weight:900;margin-bottom:22px}.dot{width:10px;height:10px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 6px rgba(247,212,73,.14)}h1{font-size:clamp(2.35rem,5vw,5rem);line-height:1.02;margin:0 0 22px;letter-spacing:-.05em}h1 span{color:var(--gold)}.lead{font-size:clamp(1.08rem,2vw,1.35rem);color:#e5ecff;max-width:660px;margin:0 0 30px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px;max-width:760px}.trust div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:15px 16px;color:#eef3ff}.trust strong{display:block;color:white;font-size:1.08rem}.hero-card{background:rgba(255,255,255,.94);color:var(--ink);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;align-self:end;border:1px solid rgba(255,255,255,.6)}.hero-card img{border-radius:20px;margin-bottom:18px}.hero-card h2{font-size:1.45rem;margin:0 0 8px}.hero-card p{color:var(--muted);margin:0 0 16px}.quick{display:grid;gap:10px}.quick a,.quick div{display:flex;justify-content:space-between;gap:12px;align-items:center;border:1px solid var(--line);border-radius:16px;padding:12px 14px;background:#fff}.quick b{color:var(--navy)}section{padding:82px 0}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(2rem,3vw,3.1rem);line-height:1.05;letter-spacing:-.04em;margin:0}.section-head p{max-width:610px;color:var(--muted);font-size:1.08rem;margin:0}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.grid.three{grid-template-columns:repeat(3,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 12px 40px rgba(4,16,44,.06)}.card .icon{font-size:2rem;margin-bottom:18px}.card h3{font-size:1.25rem;margin:0 0 10px}.card p{color:var(--muted);margin:0}.card:hover{transform:translateY(-3px);transition:.2s ease;box-shadow:var(--shadow)}.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:34px;align-items:center}.panel{border-radius:var(--radius);background:var(--soft);padding:34px;border:1px solid var(--line)}.panel.dark{background:var(--navy);color:white}.panel.dark p{color:#dbe6ff}.panel h2{font-size:2.45rem;line-height:1.08;letter-spacing:-.04em;margin:0 0 18px}.panel p{color:var(--muted);margin:0 0 18px}.list{display:grid;gap:12px;margin-top:20px;padding:0}.list li{list-style:none;display:flex;gap:12px;align-items:flex-start}.check{width:24px;height:24px;flex:0 0 24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--gold);color:var(--navy);font-weight:900}.zones{background:linear-gradient(180deg,var(--soft),#fff)}.chips{display:flex;gap:10px;flex-wrap:wrap}.chip{border:1px solid #d7def0;background:#fff;color:#21304f;border-radius:999px;padding:10px 14px;font-weight:800}.seo-block{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px}.seo-block h3{margin:0 0 10px;font-size:1.35rem}.seo-block p{color:var(--muted)}.cta-band{background:linear-gradient(135deg,var(--navy),#0b3ea8);color:white;border-radius:30px;padding:34px;display:flex;gap:22px;align-items:center;justify-content:space-between;box-shadow:var(--shadow);flex-wrap:wrap}.cta-band h2{margin:0;font-size:2rem;letter-spacing:-.03em}.cta-band p{margin:6px 0 0;color:#dfe8ff}.contact{background:var(--navy);color:white}.contact .section-head p{color:#dfe8ff}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.contact-card{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.contact-card h3{font-size:1.45rem;margin:0 0 14px}.contact-line{display:flex;gap:12px;align-items:flex-start;border-top:1px solid var(--line);padding:16px 0}.contact-line:first-of-type{border-top:0}.contact-line strong{display:block}.contact-line span{color:var(--muted)}iframe{width:100%;height:360px;border:0;border-radius:22px;filter:saturate(.95)}.content{padding:70px 0}.breadcrumb{font-size:.92rem;color:var(--muted);margin:0 0 16px}.page-hero{background:linear-gradient(135deg,#061331,#0b3ea8);color:white;padding:72px 0}.page-hero h1{max-width:900px}.page-hero p{font-size:1.18rem;color:#e5ecff;max-width:850px}.page-content{display:grid;grid-template-columns:1fr 340px;gap:30px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:26px;padding:34px;box-shadow:0 12px 40px rgba(4,16,44,.06)}.article h2{font-size:2rem;letter-spacing:-.03em;margin:24px 0 10px}.article h2:first-child{margin-top:0}.article p,.article li{color:#4c5870}.side{position:sticky;top:110px}.side .contact-card{padding:22px}.faq{display:grid;gap:14px}.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.faq summary{font-weight:900;cursor:pointer}footer{background:#050b19;color:#cdd7ef;padding:38px 0}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px}.legal{font-size:.92rem;color:#aebada}.legal strong{color:white}.small-links{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}.small-links a{color:#fff;font-weight:800}.floating-wa{position:fixed;right:22px;bottom:22px;z-index:50;background:#25D366;color:#082b16;width:62px;height:62px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.7rem;box-shadow:0 14px 36px rgba(37,211,102,.35);border:3px solid white}@media (max-width:980px){.links{display:none}.hero-inner,.split,.contact-grid,.page-content{grid-template-columns:1fr}.hero-inner{min-height:auto}.trust,.grid,.grid.three{grid-template-columns:1fr 1fr}.hero-card{align-self:auto}.section-head{align-items:flex-start;flex-direction:column}.side{position:static}}@media (max-width:640px){.topbar .container,.nav{align-items:flex-start}.nav{flex-direction:column}.actions{justify-content:flex-start}.brand img{width:158px}.hero-inner{padding:56px 0}.trust,.grid,.grid.three,.footer-grid{grid-template-columns:1fr}.section-head h2,.panel h2{font-size:2rem}.contact-grid{gap:16px}.small-links{justify-content:flex-start}.floating-wa{right:16px;bottom:16px;width:56px;height:56px}.page-hero{padding:54px 0}.article{padding:24px}}.grid.two{grid-template-columns:repeat(2,1fr)}
@media (max-width:980px){.grid.two{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.grid.two{grid-template-columns:1fr}}

/* V4.1 contact page helpers */
.small-hero{min-height:auto;padding:90px 0 60px}
.map-wrap{border-radius:28px;overflow:hidden;border:1px solid rgba(15,23,42,.12);box-shadow:0 20px 60px rgba(15,23,42,.10)}
.map-wrap iframe{display:block;width:100%;height:380px;border:0}
.info-box{background:#fff;border:1px solid rgba(15,23,42,.10);border-radius:28px;padding:28px;box-shadow:0 18px 50px rgba(15,23,42,.08)}