/* The Flow Fabric — système de design (premium, sobre) */
:root{
  --bg:#070b14; --bg2:#0b1120; --panel:#101a2c; --panel2:#13203a;
  --border:#1e2940; --border2:#2a3a59;
  --txt:#e9eef7; --muted:#9aa6be; --faint:#6b7790;
  --acc:#6366f1; --acc2:#22d3ee; --grad:linear-gradient(120deg,#6366f1,#22d3ee);
  --garder:#34d399; --arreter:#f87171; --mutualiser:#a78bfa; --automatiser:#6366f1; --augmenter:#22d3ee; --proteger:#fbbf24;
  --maxw:1160px; --shadow:0 24px 60px -28px rgba(0,0,0,.7);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:
  radial-gradient(1100px 620px at 82% -8%,#15213c 0%,transparent 60%),
  radial-gradient(900px 500px at 0% 12%,#0e1830 0%,transparent 55%),var(--bg);
  color:var(--txt);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -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}
.eyebrow{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc2);font-weight:700;margin:0 0 14px}
h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(34px,5.4vw,60px);font-weight:760}
h2{font-size:clamp(26px,3.4vw,38px);font-weight:720}
h3{font-size:20px;font-weight:680}
p{margin:0 0 16px}
.lead{font-size:clamp(17px,2vw,21px);color:#cdd6e8;max-width:680px}
.muted{color:var(--muted)}
.center{text-align:center}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* NAV */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(7,11,20,.72);border-bottom:1px solid var(--border)}
.nav .row{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:750;letter-spacing:.01em}
.brand .mark{width:30px;height:30px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#06101f;font-weight:900;font-size:13px}
.brand b{font-weight:750}.brand .stx{color:var(--acc2)}
.nav nav{display:flex;gap:24px;margin-left:auto;font-size:14.5px}
.nav nav a{color:var(--muted);transition:.15s}
.nav nav a:hover{color:var(--txt)}
.nav .cta{margin-left:8px}
.navtoggle{display:none}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--grad);color:#06101f;font-weight:720;
  padding:12px 20px;border-radius:11px;font-size:14.5px;border:0;cursor:pointer;transition:.18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px -14px var(--acc)}
.btn.ghost{background:transparent;color:var(--txt);border:1px solid var(--border2)}
.btn.ghost:hover{border-color:var(--acc2);box-shadow:none}
.btn.sm{padding:9px 15px;font-size:13.5px}

/* SECTIONS */
section{padding:84px 0}
.section-tight{padding:56px 0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent)}

/* HERO */
.hero{padding:96px 0 72px;position:relative}
.hero h1{max-width:14ch}
.hero .lead{margin:22px 0 30px}
.hero .ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero .meta{margin-top:30px;color:var(--faint);font-size:13.5px}

/* CARDS / GRID */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--border);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.card h3{margin-bottom:8px}
.pill{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:4px 11px;border-radius:20px;border:1px solid var(--border2);color:var(--muted)}

/* PRODUCT CARD */
.product{position:relative;overflow:hidden}
.product .topline{height:3px;border-radius:3px;margin:-26px -26px 22px;background:var(--grad)}
.product .kicker{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}
.product .name{font-size:24px;font-weight:760}
.product .tag{font-size:13px;color:var(--acc2);font-weight:650}
.product ul{margin:14px 0 20px;padding:0;list-style:none}
.product li{position:relative;padding-left:22px;margin:7px 0;color:var(--muted);font-size:14.5px}
.product li:before{content:"→";position:absolute;left:0;color:var(--acc2)}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.step{padding:24px;border:1px solid var(--border);border-radius:14px;background:var(--bg2)}
.step .n{width:34px;height:34px;border-radius:9px;background:rgba(99,102,241,.16);color:var(--acc2);display:grid;place-items:center;font-weight:800;margin-bottom:14px}
.step h3{font-size:18px;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--muted);margin:0}

/* ARBITRAGE MATRIX (signature) */
.arb{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.arbcard{border:1px solid var(--border);border-radius:14px;padding:20px;background:var(--bg2);position:relative;overflow:hidden}
.arbcard .ic{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-size:17px;font-weight:800;margin-bottom:12px}
.arbcard h3{font-size:17px;margin-bottom:5px}
.arbcard p{font-size:13.5px;color:var(--muted);margin:0}
.arbcard .edge{position:absolute;left:0;top:0;height:100%;width:3px}

/* PROOF */
.proof .stat{font-size:34px;font-weight:780}
.sectors{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.sectors span{border:1px solid var(--border);border-radius:10px;padding:8px 14px;color:var(--muted);font-size:13.5px;background:var(--bg2)}

/* BAND / CTA */
.band{background:linear-gradient(120deg,rgba(99,102,241,.14),rgba(34,211,238,.07));border:1px solid var(--border2);border-radius:20px;padding:48px;text-align:center}
.band h2{margin-bottom:12px}

/* FOOTER */
.footer{border-top:1px solid var(--border);padding:54px 0 40px;color:var(--muted);font-size:14px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.footer a{color:var(--muted)}.footer a:hover{color:var(--txt)}
.footer h4{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);margin:0 0 14px}
.footer .fbrand{font-weight:750;color:var(--txt);margin-bottom:10px}
.footer .legal{margin-top:34px;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--faint);font-size:12.5px}

/* small text / notes */
.note{font-size:13px;color:var(--faint)}
.kbd{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:2px 7px}

@media(max-width:880px){
  .nav nav{display:none}
  .g2,.g3,.steps,.arb{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr 1fr}
  section{padding:60px 0}
  .band{padding:32px 22px}
}

/* Galerie aperçu produit */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.shot{margin:0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--bg2);box-shadow:var(--shadow)}
.shot .winbar{display:flex;gap:6px;padding:10px 12px;background:#0c1322;border-bottom:1px solid var(--border)}
.shot .winbar i{width:9px;height:9px;border-radius:50%;background:#2a3a59}
.shot .winbar i:first-child{background:#f87171}
.shot .winbar i:nth-child(2){background:#fbbf24}
.shot .winbar i:nth-child(3){background:#34d399}
.shot img{display:block;width:100%;height:auto;background:linear-gradient(135deg,#101a30,#0c1322);min-height:150px}
.shot figcaption{padding:12px 14px;color:var(--muted);font-size:13px;border-top:1px solid var(--border)}
@media(max-width:880px){.shots{grid-template-columns:1fr}}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--border);border-radius:12px;background:var(--bg2);margin-bottom:12px;padding:0 18px}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:650;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--acc2);font-size:20px;font-weight:700}
.faq details[open] summary::after{content:"\2013"}
.faq details>p{margin:0 0 16px;color:var(--muted);font-size:14.5px}
/* Trust band */
.trust{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg2)}
.logos{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:8px}
.logos span{border:1px solid var(--border);border-radius:10px;padding:10px 18px;color:var(--muted);font-size:14px;font-weight:600}
.tstats{display:flex;gap:46px;flex-wrap:wrap;justify-content:center;margin-top:26px}
.tstat{text-align:center}
.tstat .n{font-size:30px;font-weight:780}
.tstat .l{color:var(--muted);font-size:13px;margin-top:2px}
.quote{max-width:740px;margin:28px auto 0;text-align:center;font-size:18px;line-height:1.6;color:var(--txt);font-style:italic}
.quote cite{display:block;margin-top:12px;color:var(--muted);font-size:13.5px;font-style:normal}