:root{
  --ink:#0f172a;--ink2:#1e293b;--muted:#64748b;--muted2:#94a3b8;--line:#e2e8f0;
  --blue:#2563eb;--blue-d:#1d4ed8;--blue-l:#eff6ff;--bg:#fff;--soft:#f8fafc;--green:#16a34a;
  --radius:14px;--maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.center{text-align:center}

/* boutons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;transition:.15s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-d)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}.btn-light:hover{background:var(--soft)}
.btn-lg{padding:14px 28px;font-size:16px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(15,23,42,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:21px;font-weight:700;letter-spacing:.3px}
.brand img{width:34px;height:34px}
.menu{display:flex;align-items:center;gap:26px}
.menu a.l{color:#cbd5e1;font-size:14.5px;font-weight:500}.menu a.l:hover{color:#fff}
.menu a.l.active{color:#fff}
.burger{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}
@media(max-width:880px){
  .menu{position:fixed;inset:66px 0 auto 0;background:#0f172a;flex-direction:column;align-items:flex-start;gap:4px;padding:16px 24px 24px;border-bottom:1px solid rgba(255,255,255,.08);display:none}
  .menu.open{display:flex}
  .menu a.l{padding:8px 0;width:100%}
  .burger{display:block}
}

/* hero */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(37,99,235,.35),transparent),linear-gradient(165deg,#0f172a,#1e293b 60%,#172554)}
.hero .wrap{padding:90px 24px 100px;color:#fff}
.hero h1{font-size:50px;line-height:1.08;font-weight:800;letter-spacing:-1.2px;max-width:780px}
.hero .lead{margin-top:22px;font-size:19px;color:#cbd5e1;max-width:640px}
.hero .cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.trust{margin-top:50px;display:flex;gap:14px 30px;flex-wrap:wrap}
.trust span{font-size:13px;color:#93c5fd;display:flex;align-items:center;gap:8px}
.trust span::before{content:"";width:7px;height:7px;border-radius:50%;background:#3b82f6}
@media(max-width:880px){.hero h1{font-size:34px}.hero .wrap{padding:64px 24px 72px}}

/* stats bar */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats .wrap{display:flex;flex-wrap:wrap;justify-content:space-around;gap:24px;padding:34px 24px}
.stat{text-align:center}
.stat .n{font-size:34px;font-weight:800;color:var(--blue);letter-spacing:-1px}
.stat .t{font-size:14px;color:var(--muted);margin-top:2px}

/* sections */
section.block{padding:84px 0}
.soft{background:var(--soft)}
.dark{background:linear-gradient(160deg,#0f172a,#172554);color:#fff}
.eyebrow{color:var(--blue);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:1.2px}
.dark .eyebrow{color:#7dd3fc}
h2.title{font-size:34px;font-weight:800;letter-spacing:-.6px;margin-top:10px;max-width:680px}
.center h2.title,.center .sub{margin-left:auto;margin-right:auto}
.sub{color:var(--muted);font-size:17px;margin-top:12px;max-width:660px}
.dark .sub{color:#cbd5e1}

/* grids & cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:46px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.18s}
.card:hover{box-shadow:0 12px 30px -16px rgba(15,23,42,.25);transform:translateY(-2px)}
.card .ic{width:46px;height:46px;border-radius:11px;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center}
.card .ic svg{width:24px;height:24px}
.card h3{font-size:18.5px;margin-top:18px}
.card p{color:var(--muted);font-size:15px;margin-top:9px}

/* feature rows */
.rows{margin-top:50px;display:flex;flex-direction:column;gap:30px}
.row{display:grid;grid-template-columns:1.1fr 1fr;gap:46px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px;overflow:hidden}
.row.alt{grid-template-columns:1fr 1.1fr}
.row .visual{background:linear-gradient(160deg,#0f172a,#1e3a8a);border-radius:14px;min-height:230px;display:flex;align-items:center;justify-content:center;color:#fff;padding:24px}
.row h3{font-size:23px;letter-spacing:-.4px}
.row p{color:var(--muted);margin-top:10px;font-size:15.5px}
.row ul{margin-top:16px;list-style:none;display:flex;flex-direction:column;gap:9px}
.row ul li{padding-left:26px;position:relative;font-size:15px;color:var(--ink2)}
.row ul li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:var(--blue-l);box-shadow:inset 0 0 0 2px var(--blue)}
@media(max-width:820px){.row,.row.alt{grid-template-columns:1fr;padding:26px;gap:24px}.row .visual{order:-1;min-height:170px}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;margin-top:46px}
.step{padding:26px;border-left:3px solid var(--blue);background:#fff;border-radius:0 12px 12px 0;box-shadow:0 1px 0 var(--line)}
.step .n{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.5px}
.step h3{font-size:17px;margin-top:7px}.step p{color:var(--muted);font-size:14.5px;margin-top:7px}

/* faq */
.faq{margin-top:40px;max-width:820px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0;margin-bottom:12px}
details summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--blue);font-size:22px;font-weight:400}
details[open] summary::after{content:"\2212"}
details .a{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* CTA band */
.band{background:linear-gradient(160deg,#1d4ed8,#1e3a8a);color:#fff;border-radius:20px;padding:54px;text-align:center;margin:0 auto}
.band h2{font-size:30px;font-weight:800;letter-spacing:-.5px}
.band p{color:#dbeafe;margin-top:12px;font-size:17px}
.band .cta{margin-top:26px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* contact form */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:46px}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}}
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink2)}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;color:var(--ink)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.field textarea{min-height:130px;resize:vertical}
.alert{padding:12px 14px;border-radius:10px;font-size:14px;margin-bottom:16px;display:none}
.alert.ok{background:#f0fdf4;color:var(--green);border:1px solid #bbf7d0}
.alert.err{background:#fef2f2;color:#dc2626;border:1px solid #fecaca}
.contact-info{display:flex;flex-direction:column;gap:14px;margin-top:22px;font-size:15px;color:var(--ink2)}
.contact-info .item{display:flex;align-items:center;gap:12px}
.contact-info .item b{color:var(--ink)}

/* footer */
footer{background:#0b1120;color:#94a3b8;padding:56px 0 30px;font-size:14.5px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
@media(max-width:820px){.fgrid{grid-template-columns:1fr 1fr}}
footer .brand{color:#fff;margin-bottom:12px}
footer h4{color:#e2e8f0;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin-bottom:14px}
footer ul{list-style:none;display:flex;flex-direction:column;gap:9px}
footer a:hover{color:#fff}
.fbar{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted2);font-size:13px}

.pill{display:inline-block;background:var(--blue-l);color:var(--blue-d);font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.3px}