/* yassistant.ai — feuille de style partagée pages de contenu (SEO) */
:root{
  --bg:#0A0A0C; --fg:#F3F3F2; --fg2:#8A8A90; --fg3:#57575E;
  --line:rgba(255,255,255,.10); --line2:rgba(255,255,255,.20); --panel:rgba(255,255,255,.03);
  --disp:'Bricolage Grotesque',system-ui,-apple-system,sans-serif;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:dark}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;letter-spacing:-.01em;
  background-image:radial-gradient(60% 45% at 78% 0%,rgba(120,125,150,.10) 0%,transparent 60%)}
a{color:inherit}
.wrap{max-width:820px;margin:0 auto;padding:0 30px}
h1,h2,h3{font-family:var(--disp);font-weight:700;letter-spacing:-.03em;line-height:1.05;margin:0}

/* header */
header{position:sticky;top:0;z-index:10;background:rgba(10,10,12,.72);backdrop-filter:blur(16px) saturate(1.1);-webkit-backdrop-filter:blur(16px) saturate(1.1);border-bottom:1px solid var(--line)}
.bar{max-width:1320px;margin:0 auto;padding:0 34px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-family:var(--disp);font-weight:700;font-size:19px;letter-spacing:-.02em;text-decoration:none;color:var(--fg);white-space:nowrap}
nav{display:flex;align-items:center;gap:28px;font-size:14px}
nav a{text-decoration:none;color:var(--fg2)}nav a:hover{color:var(--fg)}
nav a.cta{color:#0A0A0C;background:var(--fg);padding:9px 16px;font-weight:500;border-radius:8px}
nav a.cta:hover{background:#fff}

/* hero */
.phero{padding:74px 0 34px}
.eyebrow{font-size:12.5px;font-weight:500;color:var(--fg2);letter-spacing:.02em}
.crumb{font-size:13px;color:var(--fg3);margin-bottom:20px}
.crumb a{color:var(--fg2);text-decoration:none}.crumb a:hover{color:var(--fg)}
.phero h1{font-size:clamp(33px,5vw,52px);margin:16px 0 0;max-width:16ch}
.phero .lead{color:#C4C4C9;font-size:clamp(17px,1.6vw,20px);margin:22px 0 0;max-width:60ch;line-height:1.55}

/* prose */
.prose{padding:26px 0 20px}
.prose h2{font-size:clamp(23px,3vw,30px);margin:52px 0 14px}
.prose h3{font-size:19px;font-weight:600;margin:30px 0 8px}
.prose p{margin:0 0 16px;color:#D5D6DB}
.prose ul{margin:0 0 18px;padding-left:0;list-style:none}
.prose li{position:relative;padding-left:22px;margin:0 0 10px;color:#D5D6DB}
.prose li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--fg2)}
.prose a{color:var(--fg);text-decoration:none;background-image:linear-gradient(var(--fg2),var(--fg2));background-size:100% 1px;background-position:0 100%;background-repeat:no-repeat;padding-bottom:1px}
.prose a:hover{background-image:linear-gradient(var(--fg),var(--fg))}
.prose strong{color:var(--fg);font-weight:600}

/* proof chips */
.proof{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 4px}
.proof span{font-size:13px;color:var(--fg2);border:1px solid var(--line2);border-radius:999px;padding:6px 13px}

/* faq */
.faq{margin:14px 0 0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 2px;font-family:var(--disp);font-weight:600;font-size:18px;letter-spacing:-.01em;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--fg2);font-family:var(--sans);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 2px 20px;color:#C4C4C9}

/* related */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:14px 0 0}
.related a{border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;background:var(--panel);transition:border-color .15s,transform .15s;display:block}
.related a:hover{border-color:var(--line2);transform:translateY(-2px)}
.related .t{font-size:12px;color:var(--fg2);margin-bottom:10px}
.related .n{font-family:var(--disp);font-weight:600;font-size:18px;letter-spacing:-.01em}

/* cta band */
.ctaband{margin:70px 0;padding:48px;border:1px solid var(--line2);border-radius:20px;background:var(--panel);text-align:center}
.ctaband h2{font-size:clamp(26px,3.4vw,36px)}
.ctaband p{color:var(--fg2);margin:14px 0 26px}
.btnrow{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{font-family:var(--sans);font-size:15px;font-weight:500;text-decoration:none;background:var(--fg);color:#0A0A0C;padding:14px 22px;border-radius:9px;transition:transform .15s,background .15s;display:inline-flex;gap:9px;align-items:center}
.btn:hover{background:#fff;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line2)}
.btn.ghost:hover{background:rgba(255,255,255,.06);transform:none}

/* footer */
footer{border-top:1px solid var(--line);padding:28px 0;font-size:13px;color:var(--fg3)}
.foot{max-width:1320px;margin:0 auto;padding:0 34px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer a{color:var(--fg2);text-decoration:none}footer a:hover{color:var(--fg)}

@media (max-width:760px){
  nav .lnk{display:none}
  .bar{padding:0 20px}.foot{padding:0 20px}
  .related{grid-template-columns:1fr}
  .ctaband{padding:30px}
}