/* FRANCE TRAVAUX — feuille de style mutualisée — Concept C (clair, Archivo, bleu dominant) */
:root{
  --bg:#F7F8FB; --card:#FFFFFF; --panel:#EEF1F7; --line:rgba(20,30,70,.12);
  --navy:#1A2A6B; --navy-deep:#14215A; --blue-bright:#3F5BD6;
  --ink:#16181D; --muted:#5C616B; --muted2:#9AA0A8; --red:#E2231A;
  --grot:"Archivo",system-ui,sans-serif; --sans:"Inter",system-ui,sans-serif;
  --shadow:0 18px 55px rgba(20,30,80,.10);
  --maxw:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,64px)}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--grot);font-weight:800;line-height:1.04;letter-spacing:-.02em;color:var(--navy)}
.h-xl{font-size:clamp(2.5rem,5.6vw,4.8rem)}
.h-l{font-size:clamp(2rem,4.4vw,3.2rem)}
.h-m{font-size:clamp(1.5rem,2.6vw,2.1rem)}
.label{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:600}
.label b{color:var(--red);font-weight:700}
p.body{color:var(--muted);text-align:justify}
.btn{display:inline-flex;align-items:center;gap:.6em;padding:.95em 1.7em;border-radius:100px;font-weight:600;font-size:.9rem;transition:.25s;border:1px solid transparent;white-space:nowrap;cursor:pointer}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{filter:brightness(.92);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--navy);background:transparent}.btn-ghost:hover{border-color:var(--navy)}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

.work{background:linear-gradient(90deg,var(--navy),var(--blue-bright));color:#fff;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;text-align:center;padding:7px;font-weight:600}

header{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);background:rgba(247,248,251,.85);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:28px;height:96px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--grot);font-weight:900;letter-spacing:-.01em}
.brand .b{color:var(--navy)}.brand .r{color:var(--red)}
.brand .logo-ic{height:68px;width:auto;display:block}
.brand .wm{font-size:1.95rem;line-height:1}
.nav-links{display:flex;gap:32px;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:500;white-space:nowrap}
.nav-links a:hover{color:var(--navy)}
.nav-cta{display:flex;align-items:center;gap:18px}
.tel{font-size:.82rem;letter-spacing:.04em;color:var(--navy);white-space:nowrap;font-weight:600}
/* ===== Menu mobile (hamburger) — responsive tous terminaux ===== */
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;background:var(--card);cursor:pointer;padding:0;flex:none}
.burger span{display:block;width:22px;height:2px;background:var(--navy);margin:0 auto;border-radius:2px;transition:transform .25s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.dwcta,.dwtel{display:none}
@media(max-width:1024px){
  .burger{display:flex}
  .nav{height:74px;gap:14px}
  .nav-cta{display:none}
  .nav-links{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:6px 0 14px;display:none;max-height:80vh;overflow:auto}
  header.open .nav-links{display:flex}
  .nav-links a{padding:15px clamp(20px,5vw,64px);font-size:.95rem;letter-spacing:.06em;border-top:1px solid var(--line)}
  .nav-links a:first-child{border-top:none}
  .nav-links .dwtel{display:block;color:var(--navy);font-weight:700;letter-spacing:.04em}
  .nav-links .dwcta{display:inline-flex;align-self:flex-start;margin:14px clamp(20px,5vw,64px) 2px;padding:.95em 1.7em;text-transform:none;letter-spacing:0;border-top:none}
}
/* Largeurs intermédiaires (tablette large / petit portable) : barre desktop compacte, sans débordement */
@media(min-width:1025px) and (max-width:1240px){
  .tel{display:none}
  .nav-links{gap:22px}
  .brand .wm{font-size:1.7rem}
}
@media(max-width:480px){
  .brand{gap:8px}
  .brand .wm{font-size:1.3rem}
  .brand .logo-ic{height:46px}
}

section{padding:clamp(60px,8vw,110px) 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:46px;flex-wrap:wrap}
.sec-head .h-l{max-width:18ch}

/* breadcrumb */
.crumb{font-size:.78rem;letter-spacing:.06em;color:var(--muted);padding:22px 0 0}
.crumb a:hover{color:var(--navy)} .crumb .sep{margin:0 8px;color:var(--muted2)}

/* page hero (inner) */
.phero{padding:36px 0 0}
.phero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center;padding:18px 0 0}
.phero h1{margin:16px 0 0}
.phero h1 u{text-decoration:none;border-bottom:.09em solid var(--red)}
.phero p{color:#3a3f49;margin-top:22px;font-size:clamp(1rem,1.4vw,1.12rem);max-width:50ch;text-align:justify}
.phero .cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.media{border-radius:22px;border:1px solid var(--line);position:relative;box-shadow:var(--shadow);background:radial-gradient(120% 120% at 70% 12%,#e1e9ff,#eef0f7)}
.media[data-ph]::after{content:attr(data-ph);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.66rem;letter-spacing:.2em;color:rgba(20,22,28,.30);text-align:center;padding:10px}
.media.tall{aspect-ratio:3/3.4}.media.wide{aspect-ratio:16/10}
@media(max-width:860px){.phero .grid{grid-template-columns:1fr}.media.tall{min-height:260px}}

/* prose */
.prose{max-width:62ch}
.prose p{color:var(--muted);text-align:justify;margin-bottom:16px}
.prose h2{margin:0 0 18px}

/* feature grid */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.feat .it{background:var(--card);padding:32px 28px}
.feat .it .n{font-family:var(--grot);font-weight:800;color:var(--red);font-size:.95rem}
.feat .it h3{font-size:1.25rem;margin:12px 0 8px}
.feat .it p{color:var(--muted);font-size:.9rem;text-align:justify}
@media(max-width:860px){.feat{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.feat{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}
.step .n{font-family:var(--grot);font-weight:800;font-size:1.6rem;color:var(--navy);border-top:3px solid var(--red);padding-top:14px;display:inline-block;min-width:48px}
.step h3{font-size:1.05rem;margin:10px 0 6px}
.step p{color:var(--muted);font-size:.86rem;text-align:justify}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}

/* bandeau bleu */
.bluebar{background:var(--navy);color:#fff}
.bluebar .label{color:#aeb8e0}.bluebar .label b{color:#fff}
.bluebar h2,.bluebar h3{color:#fff}
.bluebar .why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.bluebar .why-grid p{color:#c5cae6;font-size:.92rem;text-align:justify}
.bluebar .num{font-family:var(--grot);font-weight:800;color:#fff;font-size:1.6rem;display:block;margin-bottom:10px}
@media(max-width:760px){.bluebar .why-grid{grid-template-columns:1fr}}

/* works/cards */
.works{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.work-card{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#1a2a6b;aspect-ratio:16/10;position:relative;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;box-shadow:var(--shadow)}
.work-card .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.work-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,18,45,0) 30%,rgba(12,18,45,.82));z-index:1}
.work-card .yr,.work-card h3,.work-card .more{position:relative;z-index:2}
.work-card .ph{display:none}
.work-card .yr{font-size:.74rem;letter-spacing:.12em;color:#cfd6ee;font-weight:600}
.work-card h3{font-size:1.35rem;margin-top:4px;color:#fff}
.work-card .more{margin-top:14px;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-weight:700}
@media(max-width:760px){.works{grid-template-columns:1fr}}

/* Comparateur avant/après (curseur glissant) */
.ba{position:relative;aspect-ratio:16/10;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);--pos:50%;user-select:none}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 var(--pos))}
.ba .tag{position:absolute;top:14px;font-size:.66rem;letter-spacing:.18em;font-weight:700;color:#fff;background:rgba(12,18,45,.7);padding:5px 12px;border-radius:100px;z-index:3}
.ba .tag.av{left:14px}.ba .tag.ap{right:14px}
.ba .line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;background:#fff;z-index:3;transform:translateX(-1px)}
.ba .knob{position:absolute;top:50%;left:var(--pos);width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--red);transform:translate(-50%,-50%);z-index:4;display:flex;align-items:center;justify-content:center;color:var(--red);font-weight:800;cursor:ew-resize;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.ba input[type=range]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:5;margin:0}

/* FAQ */
.faq{max-width:860px}
.faq details{border-top:1px solid var(--line);padding:20px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{font-family:var(--grot);font-weight:700;color:var(--navy);font-size:1.1rem;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--red);font-weight:800}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--muted);margin-top:14px;text-align:justify}

/* maillage interne */
.links{display:flex;gap:14px;flex-wrap:wrap}
.links a{border:1px solid var(--line);background:var(--card);border-radius:100px;padding:10px 20px;font-size:.86rem;font-weight:600;color:var(--navy);transition:.25s}
.links a:hover{border-color:var(--navy);transform:translateY(-2px)}

/* form */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:760px}
.form .full{grid-column:1/-1}
.field label{display:block;font-size:.8rem;font-weight:600;color:var(--navy);margin-bottom:7px;letter-spacing:.02em}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:var(--card);font-family:var(--sans);font-size:.95rem;color:var(--ink)}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue-bright);box-shadow:0 0 0 3px rgba(63,91,214,.15)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--muted)}
.consent input{margin-top:4px}
@media(max-width:640px){.form{grid-template-columns:1fr}}

/* CTA final */
.cta-final{text-align:center}
.cta-final h2 u{text-decoration:none;border-bottom:.08em solid var(--red)}

/* footer */
footer{border-top:1px solid var(--line);background:var(--panel);padding:70px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
footer h4{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;font-weight:700}
footer ul{list-style:none}footer li{margin-bottom:10px;color:var(--muted);font-size:.9rem}
footer li a:hover{color:var(--navy)}
.foot-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:48px;padding-top:24px;color:var(--muted2);font-size:.78rem;flex-wrap:wrap;gap:10px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}