/* ============================================================
   GROUPE KESY — Design system partagé
   À lier dans chaque page : <link rel="stylesheet" href="/styles.css">
   ============================================================ */
:root{
  --navy:#0F2D52;
  --navy-deep:#0A1F3A;
  --teal:#3FA9A0;
  --teal-bright:#52C7BC;
  --hazard:#F2682C;
  --concrete:#E7E4DD;
  --paper:#F7F6F2;
  --ink:#11192A;
  --muted:#5C6577;
  --line:rgba(15,45,82,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.display{font-family:'Archivo',sans-serif;line-height:1.1;letter-spacing:-.01em}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:760px;margin:0 auto;padding:0 24px}
a{color:inherit}

.eyebrow{font-family:'Archivo';font-weight:700;text-transform:uppercase;letter-spacing:.18em;font-size:12px;color:var(--teal);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--hazard)}

.btn{display:inline-block;background:var(--hazard);color:#fff;font-family:'Archivo';font-weight:700;text-decoration:none;padding:13px 22px;border-radius:2px;font-size:14.5px;transition:transform .15s,background .15s;border:none;cursor:pointer}
.btn:hover{background:#d9551f;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}

.topbar{background:var(--navy-deep);color:#fff;font-size:13.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:9px 24px;flex-wrap:wrap}
.topbar a{text-decoration:none;font-weight:600}
.topbar .tag{color:var(--teal-bright)}

header{position:sticky;top:0;z-index:50;background:rgba(247,246,242,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;padding:16px 24px}
.brand{font-family:'Archivo';font-weight:900;font-size:22px;color:var(--navy);letter-spacing:-.02em;text-decoration:none}
.brand span{color:var(--teal)}
nav.main a{text-decoration:none;font-weight:600;font-size:14.5px;color:var(--navy);margin-left:26px}
nav.main a:hover{color:var(--teal)}
@media(max-width:820px){nav.main{display:none}}

.hero-article{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero-article::after{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;background:repeating-linear-gradient(135deg,var(--hazard) 0 22px,var(--navy-deep) 22px 44px)}
.hero-article .wrap-narrow{padding:64px 24px 72px;position:relative;z-index:2}
.hero-article h1{font-size:clamp(32px,4.6vw,52px);font-weight:900;margin:18px 0 16px}
.hero-article p.lead{font-size:18.5px;color:rgba(255,255,255,.82);max-width:620px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:6px}
.breadcrumb a{text-decoration:none;color:var(--teal-bright)}

.prose{padding:64px 0}
.prose h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--navy);margin:46px 0 16px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:20px;font-weight:700;color:var(--navy);margin:30px 0 10px}
.prose p{font-size:17px;color:#27303f;margin-bottom:16px}
.prose ul{margin:0 0 18px 0;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:28px;margin-bottom:10px;font-size:16.5px;color:#27303f}
.prose ul li::before{content:"";position:absolute;left:0;top:10px;width:12px;height:2px;background:var(--hazard)}
.prose strong{color:var(--navy)}
.prose a.inline{color:var(--teal);font-weight:600;text-decoration:underline;text-underline-offset:3px}

.table-wrap{overflow-x:auto;margin:20px 0 26px}
table.data{width:100%;border-collapse:collapse;font-size:15.5px}
table.data th{background:var(--navy);color:#fff;font-family:'Archivo';font-weight:700;text-align:left;padding:13px 16px;font-size:14px}
table.data td{padding:13px 16px;border-bottom:1px solid var(--line);color:#27303f}
table.data tr:nth-child(even) td{background:#fff}

.callout{background:#fff;border-left:4px solid var(--teal);border-radius:0 4px 4px 0;padding:22px 26px;margin:26px 0;box-shadow:0 1px 0 var(--line)}
.callout.warn{border-left-color:var(--hazard)}
.callout h4{font-size:16px;color:var(--navy);margin-bottom:8px}
.callout p{font-size:15.5px;color:var(--muted);margin:0}

.steps{counter-reset:step;margin:24px 0}
.step{position:relative;padding:18px 0 18px 60px;border-bottom:1px solid var(--line)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:16px;width:40px;height:40px;background:var(--navy);color:var(--teal-bright);border-radius:3px;display:grid;place-items:center;font-family:'Archivo';font-weight:800;font-size:18px}
.step h3{margin:0 0 4px;font-size:18px;color:var(--navy)}
.step p{margin:0;font-size:15.5px;color:var(--muted)}

.cta-final{background:linear-gradient(135deg,var(--teal),var(--navy));color:#fff;text-align:center;padding:64px 0}
.cta-final h2{font-size:clamp(26px,3.6vw,40px);font-weight:900;margin-bottom:14px}
.cta-final p{color:rgba(255,255,255,.85);font-size:18px;max-width:540px;margin:0 auto 28px}

footer{background:var(--navy-deep);color:rgba(255,255,255,.7);font-size:14px;padding:46px 0 30px}
footer .f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:30px}
footer h4{color:#fff;font-family:'Archivo';font-weight:700;font-size:15px;margin-bottom:14px;text-transform:uppercase;letter-spacing:.08em}
footer a{color:rgba(255,255,255,.7);text-decoration:none;display:block;margin-bottom:8px}
footer a:hover{color:var(--teal-bright)}
footer .copy{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:13px;color:rgba(255,255,255,.45)}
@media(max-width:760px){footer .f-grid{grid-template-columns:1fr}}

.faq details{background:#fff;border:1px solid var(--line);border-radius:4px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-family:'Archivo';font-weight:700;font-size:16.5px;color:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--hazard)}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 22px 20px;color:var(--muted);font-size:15.5px}

.zone-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 17px;font-size:14px;font-weight:600;color:var(--navy);text-decoration:none;transition:border-color .15s,color .15s}
.chip:hover{border-color:var(--teal);color:var(--teal)}
.related{padding:48px 0;background:var(--concrete)}
.related h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:var(--navy);margin-bottom:8px}
.related p{color:var(--muted);font-size:16px}

@media(prefers-reduced-motion:reduce){*{transition:none!important}}