@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800;900&display=swap');

:root{
  --blue:#17356f;
  --blue-dark:#0b1d44;
  --blue-bright:#0785d1;
  --yellow:#f5d90a;
  --ink:#172139;
  --muted:#667085;
  --light:#f5f7fb;
  --white:#fff;
  --line:#dfe5ef;
  --shadow:0 22px 70px rgba(6,23,58,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Montserrat,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55}
a{color:inherit}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{height:72px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1180px)/2));position:sticky;top:0;z-index:40;box-shadow:0 3px 18px rgba(0,0,0,.08)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:18px}
.brand img{display:block}
.header-cta,.main-button,.white-button,.submit-button{display:inline-flex;align-items:center;justify-content:center;border:0;text-decoration:none;cursor:pointer;font-family:inherit;font-weight:800;transition:.2s}
.header-cta{background:var(--blue);color:#fff;padding:12px 18px;border-radius:8px;font-size:13px}
.header-cta:hover,.submit-button:hover{background:var(--blue-dark)}
.hero{position:relative;min-height:780px;color:#fff;background:url('assets/fond-combles.webp') center/cover no-repeat;overflow:hidden}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,18,49,.92) 0%,rgba(14,38,88,.78) 50%,rgba(8,19,43,.64) 100%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center;padding:70px 0 85px}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:1.8px}
.eyebrow.light{color:#dce8ff}
.eyebrow.blue{color:var(--blue-bright)}
.hero-copy h1{font-size:clamp(42px,5.3vw,70px);line-height:1.05;letter-spacing:-2.7px;margin:16px 0 22px;text-transform:uppercase}
.hero-copy h1 span{color:var(--yellow)}
.hero-subtitle{font-size:18px;max-width:700px;color:#edf3ff}
.hero-points{list-style:none;padding:0;margin:28px 0;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;font-weight:600}
.hero-points li::before{content:"✓";color:var(--yellow);margin-right:9px;font-weight:900}
.main-button{background:var(--blue-bright);color:#fff;padding:18px 28px;border-radius:4px;box-shadow:0 12px 30px rgba(0,119,198,.35)}
.main-button:hover{transform:translateY(-2px);filter:brightness(1.08)}
.hero-note{font-size:10px;color:#d6deef;max-width:710px;margin-top:16px}
.form-card{background:#fff;color:var(--ink);border-radius:15px;padding:29px;box-shadow:var(--shadow);border-top:5px solid var(--yellow)}
.form-tag{display:inline-block;background:#eaf4ff;color:var(--blue);padding:6px 9px;border-radius:99px;font-size:10px;font-weight:800}
.form-intro h2{font-size:27px;line-height:1.15;margin:12px 0 6px}
.form-intro p{margin:0 0 21px;color:var(--muted);font-size:14px}
.field{margin-bottom:13px}
.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:11px}
label{display:block;font-size:12px;font-weight:700;margin-bottom:6px}
input,select{width:100%;border:1px solid #ccd5e2;background:#fbfcfe;border-radius:8px;padding:13px;font:inherit;font-size:13px;outline:none}
input:focus,select:focus{border-color:var(--blue-bright);box-shadow:0 0 0 3px rgba(7,133,209,.12)}
.consent{display:grid;grid-template-columns:17px 1fr;gap:8px;align-items:start;color:var(--muted);font-weight:500;font-size:10px;margin:4px 0 14px}
.consent input{width:16px;height:16px;margin:1px 0 0}
.consent a{color:var(--blue-bright)}
.submit-button{width:100%;padding:15px;background:var(--blue-bright);color:#fff;border-radius:7px;font-size:12px}
.submit-button:disabled{opacity:.65;cursor:wait}
.small-print{font-size:9px;color:#7a869a;margin:10px 0 0}
.form-status{font-size:12px;font-weight:700;margin-top:10px}
.scroll-cue{position:absolute;z-index:3;bottom:16px;left:50%;transform:translateX(-50%);font-size:35px;text-decoration:none;color:#24a7ee;animation:bounce 1.5s infinite}
@keyframes bounce{50%{transform:translate(-50%,7px)}}
.stats{background:var(--blue);color:#fff;padding:55px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.stats article{padding:0 20px}
.stats strong{display:block;font-size:25px;line-height:1.1;margin-bottom:8px}
.stats span{font-size:14px;color:#e8eeff}
.explain,.steps-section,.faq{padding:95px 0}
.section-title{text-align:center;max-width:900px;margin:0 auto 48px}
.section-title h2{color:var(--blue);font-size:clamp(31px,4vw,48px);line-height:1.12;letter-spacing:-1.4px;margin:10px 0 14px}
.section-title p{color:var(--muted);font-size:17px}
.explain-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.photo-panel{min-height:430px;border-radius:14px;background:url('assets/fond-combles.webp') center/cover no-repeat;box-shadow:var(--shadow)}
.text-panel h3{font-size:26px;color:var(--blue);margin:0 0 18px}
.text-panel p{color:var(--muted);font-size:16px}
.text-panel h4{font-size:17px;margin-top:28px}
.check-list{list-style:none;padding:0;color:var(--muted)}
.check-list li{margin:10px 0}
.check-list li::before{content:"✓";color:var(--blue-bright);font-weight:900;margin-right:10px}
.cae{padding:90px 0;background:linear-gradient(135deg,var(--blue-dark),var(--blue));color:#fff}
.cae-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:55px;align-items:center}
.cae h2{font-size:43px;line-height:1.12;margin:12px 0 20px}
.cae p{color:#dbe6ff}
.cae-card{background:#fff;color:var(--ink);padding:30px;border-radius:15px;border-left:5px solid var(--yellow)}
.cae-card h3{margin-top:0;color:var(--blue)}
.cae-card p{color:var(--muted)}
.cae-card a{color:var(--blue-bright);font-weight:800;text-decoration:none}
.steps-section{background:var(--light)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps article{background:#fff;border:1px solid var(--line);border-radius:13px;padding:25px}
.steps article>span{font-size:42px;font-weight:900;color:#dbe8f8}
.steps h3{color:var(--blue);font-size:18px;margin:9px 0}
.steps p{color:var(--muted);font-size:13px;margin:0}
.faq-inner{max-width:850px}
details{background:#fff;border:1px solid var(--line);border-radius:11px;padding:18px 20px;margin-bottom:12px}
summary{font-weight:800;color:var(--blue);cursor:pointer}
details p{color:var(--muted);margin:12px 0 0;font-size:14px}
.last-cta{padding:30px 0 90px}
.last-box{background:linear-gradient(135deg,var(--blue),var(--blue-bright));border-radius:18px;color:#fff;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:35px}
.last-box h2{font-size:34px;line-height:1.15;max-width:720px;margin:9px 0 0}
.white-button{background:#fff;color:var(--blue);padding:16px 23px;border-radius:7px;white-space:nowrap}
footer{background:#081a3f;color:#dce6fb;padding:35px 0}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}
.footer-brand{color:#fff}
footer nav{display:flex;gap:20px;font-size:12px}
footer p{grid-column:1/-1;margin:0;font-size:11px;color:#9fb0d0}
@media(max-width:950px){
  .hero-grid,.explain-grid,.cae-grid{grid-template-columns:1fr}
  .hero-copy{text-align:center}
  .hero-points{max-width:660px;margin:26px auto}
  .form-card{max-width:650px;margin:auto}
  .steps{grid-template-columns:1fr 1fr}
}
@media(max-width:650px){
  .container{width:min(100% - 24px,1180px)}
  .topbar{height:64px;padding:0 12px}
  .brand{font-size:14px}.brand img{width:36px;height:36px}
  .header-cta{font-size:10px;padding:10px}
  .hero-grid{padding:45px 0 75px}
  .hero-copy h1{font-size:39px;letter-spacing:-1.5px}
  .hero-subtitle{font-size:15px}
  .hero-points{grid-template-columns:1fr;text-align:left}
  .two-fields{grid-template-columns:1fr}
  .stats-grid,.steps{grid-template-columns:1fr}
  .stats-grid{gap:27px}
  .explain,.steps-section,.faq{padding:70px 0}
  .section-title h2{font-size:31px}
  .photo-panel{min-height:300px}
  .cae{padding:70px 0}.cae h2{font-size:32px}
  .last-box{display:block;padding:28px 22px}
  .last-box h2{font-size:27px;margin-bottom:22px}
  .footer-grid{grid-template-columns:1fr}
}

.video-panel{
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--shadow);
  background:#000;
}
.video-panel iframe{
  display:block;
  width:100%;
  aspect-ratio:16/9;
  min-height:430px;
  border:0;
}
@media(max-width:650px){
  .video-panel iframe{min-height:240px}
}