:root{
  --kyscale-navy:#0B1F4B;--kyscale-blue-tech:#0D8CE0;--kyscale-cyan:#00C6E8;--kyscale-mist:#EDF2F7;
  --kyscale-black:#000;--kyscale-white:#fff;
  --kyscale-font-display:'Inter Display','Inter',system-ui,sans-serif;--kyscale-font-body:'Inter',system-ui,sans-serif;
  --kyscale-space-1:8px;--kyscale-space-2:16px;--kyscale-space-3:24px;--kyscale-space-4:32px;--kyscale-space-6:48px;--kyscale-space-8:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--kyscale-font-body);color:var(--kyscale-navy);background:#fff;line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--kyscale-font-display);line-height:1.2;margin:0 0 var(--kyscale-space-2);letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);margin-bottom:var(--kyscale-space-4)}
h3{font-size:1.15rem}
p{margin:0 0 var(--kyscale-space-2)}
a{color:var(--kyscale-navy)}
img{max-width:100%;height:auto}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
.narrow{width:min(760px,100% - 40px)}
.skip{position:absolute;left:-999px;top:8px;background:var(--kyscale-navy);color:#fff;padding:8px 14px;border-radius:6px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--kyscale-blue-tech);outline-offset:3px}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--kyscale-mist)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand img{display:block;height:34px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a:not(.btn){text-decoration:none;font-weight:500}
.nav a:not(.btn):hover{text-decoration:underline}

.btn{display:inline-block;background:var(--kyscale-navy);color:#fff;text-decoration:none;font-weight:600;padding:12px 22px;border-radius:10px;border:2px solid var(--kyscale-navy);cursor:pointer;font:inherit;font-weight:600;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(11,31,75,.25);background:#0a1a40}
.btn-sm{padding:9px 16px;font-size:.95rem}
.btn-lg{padding:15px 30px;font-size:1.05rem}
.btn-light{background:#fff;color:var(--kyscale-navy);border-color:#fff}
.btn-light:hover{background:var(--kyscale-mist)}

.hero{background:var(--kyscale-navy) url(/assets/img/Hero_Fond_1600x620_Sans_Texte.svg) center/cover no-repeat;color:#fff;padding:clamp(64px,10vw,128px) 0}
.hero-in{max-width:1120px}
.hero h1{max-width:18ch;font-size:clamp(2.2rem,5.6vw,4rem)}
.eyebrow{color:var(--kyscale-cyan);font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:.85rem;margin-bottom:var(--kyscale-space-2)}
.lead{font-size:1.2rem;max-width:56ch;color:#fff;margin-bottom:var(--kyscale-space-4)}
.lead.dark{color:var(--kyscale-navy)}
.reassure{margin-top:var(--kyscale-space-2);font-size:.95rem;color:#fff;opacity:.9}

.section{padding:clamp(56px,8vw,96px) 0}
.section.alt{background:var(--kyscale-mist)}
.grid{display:grid;gap:var(--kyscale-space-3)}
.g4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:#fff;border:1px solid #dbe4ee;border-radius:16px;padding:var(--kyscale-space-3);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(11,31,75,.1)}
.card .gain{margin:0;font-weight:600;border-top:3px solid var(--kyscale-cyan);padding-top:var(--kyscale-space-1)}
.exp{border-top:4px solid var(--kyscale-blue-tech)}
.steps .step{background:var(--kyscale-navy);color:#fff;border-radius:16px;padding:var(--kyscale-space-4)}
.num{display:block;font-family:var(--kyscale-font-display);font-size:3.4rem;font-weight:700;color:var(--kyscale-cyan);line-height:1;margin-bottom:var(--kyscale-space-2)}
.note{margin-top:var(--kyscale-space-3);font-style:italic}
.why{list-style:none;padding:0;margin:0 0 var(--kyscale-space-4);display:grid;gap:var(--kyscale-space-2);grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.why li{background:#fff;border-left:4px solid var(--kyscale-blue-tech);border-radius:8px;padding:var(--kyscale-space-2) var(--kyscale-space-3)}
.prose{max-width:70ch;font-size:1.08rem}

.cta{background:var(--kyscale-navy);color:#fff;text-align:center;padding:clamp(56px,8vw,96px) 0}
.cta h2{max-width:24ch;margin-inline:auto}
.cta p{max-width:56ch;margin-inline:auto;margin-bottom:var(--kyscale-space-3)}

.form{display:grid;gap:var(--kyscale-space-2);margin-top:var(--kyscale-space-3)}
.row{display:grid;gap:var(--kyscale-space-2);grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
label{display:block;font-weight:600;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;color:var(--kyscale-navy);padding:12px 14px;border:2px solid #b8c6d6;border-radius:10px;background:#fff}
input:focus,select:focus,textarea:focus{border-color:var(--kyscale-blue-tech);outline:none;box-shadow:0 0 0 3px rgba(13,140,224,.25)}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.micro{font-size:.9rem}
.alert{background:#fff4f4;border:2px solid #b42318;color:#7a1710;border-radius:10px;padding:var(--kyscale-space-2) var(--kyscale-space-3);margin:var(--kyscale-space-3) 0}
.alert ul{margin:0;padding-left:1.2em}
.prose-page h2{font-size:1.35rem;margin:var(--kyscale-space-4) 0 var(--kyscale-space-1)}

.site-footer{background:var(--kyscale-navy);color:#fff;padding:var(--kyscale-space-6) 0 var(--kyscale-space-3)}
.site-footer a{color:#fff}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--kyscale-space-4)}
.foot-logo{height:38px;width:auto;display:block;margin-bottom:var(--kyscale-space-2)}
.foot nav{display:grid;gap:8px;align-content:start}
.foot-tag{opacity:.9}
.copy{margin-top:var(--kyscale-space-4);padding-top:var(--kyscale-space-2);border-top:1px solid rgba(255,255,255,.2);font-size:.9rem;opacity:.85}

@media (max-width:640px){
  body{font-size:16px}
  .nav a:not(.btn){display:none}
  .brand img{height:28px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.tbl{width:100%;border-collapse:collapse;margin:var(--kyscale-space-3) 0;font-size:.95rem}.tbl th,.tbl td{border:1px solid #b8c6d6;padding:10px 12px;text-align:left;vertical-align:top}.tbl th{background:var(--kyscale-mist)}
@media (max-width:640px){.tbl{display:block;overflow-x:auto}}