:root{--navy:#141f3c;--ink:#1d2433;--muted:#5b6477;--line:#dfe5ee;--bg:#ffffff;--soft:#f5f7fb;--accent:#1f5fbf;--accent-dark:#174a96;--accent-soft:#e8eef7;--ok:#1e7a4c;--ok-soft:#e5f4ec;--warn:#9a6700;--warn-soft:#fff5d6;--err:#b42318;--err-soft:#fdecea;--radius:12px;--shadow:0 1px 2px rgba(20,31,60,.06),0 8px 24px rgba(20,31,60,.06)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent)}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
h1,h2,h3{color:var(--navy);line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(30px,5vw,48px);margin:.2em 0 .4em}
h2{font-size:clamp(24px,3.4vw,34px);margin:0 0 .5em}
h3{font-size:19px;margin:0 0 .4em}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.small{font-size:14px}
header.site{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{font-weight:800;font-size:20px;color:var(--navy);text-decoration:none;letter-spacing:.02em}
.brand span{color:var(--accent)}
nav.main{display:flex;align-items:center;gap:22px}
nav.main a{color:var(--ink);text-decoration:none;font-size:15px}
nav.main a:hover{color:var(--accent)}
nav.main a.btn,nav.main a.btn:hover{color:#fff}
@media (max-width:760px){nav.main a:not(.btn){display:none}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 20px;font:600 16px/1.2 inherit;text-decoration:none;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--accent-dark)}
.btn.small{padding:9px 14px;font-size:14px}
.btn.ghost{background:transparent;color:var(--accent);box-shadow:inset 0 0 0 1.5px var(--accent)}
.btn.ghost:hover{background:var(--accent-soft)}
.btn.big{padding:16px 26px;font-size:18px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.hero{padding:56px 0 40px;background:linear-gradient(180deg,var(--soft),#fff)}
.eyebrow{display:inline-block;background:var(--ok-soft);color:var(--ok);font-weight:600;font-size:13px;padding:5px 10px;border-radius:999px}
.lead{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:720px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 14px}
.trust{display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--muted);font-size:14px;padding:0;margin:0;list-style:none}
.trust li::before{content:"✓ ";color:var(--ok);font-weight:700}
section.block{padding:56px 0;border-top:1px solid var(--line)}
section.block.alt{background:var(--soft)}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.card h3 small{display:block;font-size:13px;color:var(--muted);font-weight:500;margin-top:2px}
.card ul{margin:.3em 0 0;padding-left:1.1em}
.card li{margin:.2em 0}
.num{display:inline-flex;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700;align-items:center;justify-content:center;margin-bottom:8px}
.compare{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.compare th,.compare td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare th{background:var(--accent-soft);color:var(--navy);font-size:15px}
.compare td.hl{background:#f3f8ff;font-weight:600}
.table-scroll{overflow-x:auto}
.price{font-size:52px;font-weight:800;color:var(--navy);line-height:1}
.price small{font-size:16px;font-weight:500;color:var(--muted)}
.check{list-style:none;padding:0;margin:0}
.check li{padding-left:28px;position:relative;margin:.45em 0}
.check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--ok);font-weight:800}
details.faq{border:1px solid var(--line);border-radius:10px;background:#fff;margin:10px 0;padding:0 18px}
details.faq summary{cursor:pointer;font-weight:600;padding:16px 0;color:var(--navy);list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";float:right;color:var(--accent);font-size:20px;line-height:1}
details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--ink)}
.notice{border-radius:10px;padding:14px 16px;margin:14px 0;background:var(--accent-soft);color:var(--navy);font-size:15px}
.notice.ok{background:var(--ok-soft);color:#14532d}
.notice.warn{background:var(--warn-soft);color:#5c3d00}
.notice.err{background:var(--err-soft);color:var(--err)}
footer.site{border-top:1px solid var(--line);padding:32px 0 44px;color:var(--muted);font-size:14px;background:#fff}
footer.site .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
footer.site a{color:var(--muted)}
footer.site nav{display:flex;flex-wrap:wrap;gap:8px 18px}
.article{padding:40px 0 60px}
.article h2{margin-top:1.6em;font-size:26px}
.article h3{margin-top:1.3em}
.article table{width:100%;border-collapse:collapse;margin:1em 0;font-size:15px}
.article th,.article td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
.article th{background:var(--accent-soft)}
/* ---------------- formulaire ---------------- */
.steps{display:flex;gap:6px;margin:18px 0 26px}
.steps span{flex:1;height:6px;border-radius:99px;background:var(--line)}
.steps span.done{background:var(--accent)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.step{display:none}.step.active{display:block}
.field{margin:0 0 18px}
.field label.lbl{display:block;font-weight:600;color:var(--navy);margin-bottom:6px;font-size:15px}
.field .hint{font-size:13px;color:var(--muted);margin-top:5px}
input[type=text],input[type=email],input[type=tel],input[type=url],select,textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:9px;padding:11px 12px}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.invalid input,.invalid select,.invalid textarea{border-color:var(--err)}
.err-msg{color:var(--err);font-size:13px;margin-top:5px;display:none}
.invalid .err-msg{display:block}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row3{display:grid;grid-template-columns:2fr 1fr 2fr;gap:14px}
@media (max-width:620px){.row2,.row3{grid-template-columns:1fr}}
.choice{display:flex;flex-wrap:wrap;gap:10px}
.choice label{display:flex;align-items:flex-start;gap:9px;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;cursor:pointer;background:#fff;flex:1 1 220px;font-size:15px}
.choice label:hover{border-color:#b9c7dc}
.choice input{margin-top:4px;accent-color:var(--accent)}
.choice label.on{border-color:var(--accent);background:#f5f9ff}
.nav-row{display:flex;justify-content:space-between;gap:12px;margin-top:26px;flex-wrap:wrap}
.summary dl{display:grid;grid-template-columns:220px 1fr;gap:6px 16px;margin:0}
.summary dt{color:var(--muted);font-size:14px}
.summary dd{margin:0;font-size:15px}
@media (max-width:620px){.summary dl{grid-template-columns:1fr}.summary dd{margin-bottom:8px}}
.logo-preview{max-height:70px;border:1px dashed var(--line);border-radius:8px;padding:6px;background:#fff;display:none}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.progress{height:10px;background:var(--line);border-radius:99px;overflow:hidden;margin:14px 0 6px}
.progress div{height:100%;width:0;background:var(--accent);transition:width .2s}
.center{text-align:center}
.spinner{width:34px;height:34px;border:4px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin:10px auto}
@keyframes spin{to{transform:rotate(360deg)}}