/* ============================================================
   RIVELIA SERVICES — Design system (SEO/GEO static build)
   Couleurs : bleu nuit #0c2747 · vert #6aab3c
   Polices  : Archivo (titres) · Mulish (texte)
   ============================================================ */

:root{
  --navy:#0c2747;
  --navy-dark:#081c38;
  --green:#6aab3c;
  --green-bright:#8fcb5f;
  --green-deep:#57962f;
  --ink:#2a3850;
  --ink-soft:#647387;
  --muted:#6b7a8d;
  --bg:#ffffff;
  --bg-soft:#f5f7f2;
  --border:#eaece5;
  --border-soft:#ebeee7;
  --maxw:1180px;
  --radius:16px;
  --shadow-sm:0 2px 14px rgba(20,40,70,.05);
  --shadow-md:0 14px 34px rgba(8,20,40,.18);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
html,body{margin:0;padding:0;}
body{
  font-family:'Mulish',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.6;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
h1,h2,h3,h4{font-family:'Archivo',sans-serif;margin:0;}
p{margin:0;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

/* ---------- Layout ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;}
.section-sm{padding:60px 0;}
.bg-soft{background:var(--bg-soft);border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);}
.bg-navy{background:var(--navy);}
.center{text-align:center;}
.measure{max-width:640px;margin-left:auto;margin-right:auto;}
.measure-md{max-width:760px;}

.eyebrow{
  font-family:'Archivo',sans-serif;font-weight:700;text-transform:uppercase;
  letter-spacing:.16em;font-size:13px;color:var(--green);margin-bottom:14px;
}
.eyebrow-light{color:var(--green-bright);}

.h1{font-family:'Archivo',sans-serif;font-weight:800;font-size:48px;line-height:1.05;letter-spacing:-.025em;color:var(--navy);}
.h2{font-family:'Archivo',sans-serif;font-weight:800;font-size:38px;line-height:1.1;letter-spacing:-.02em;color:var(--navy);}
.h3{font-family:'Archivo',sans-serif;font-weight:800;font-size:20px;color:var(--navy);}
.on-navy{color:#fff;}
.lead{font-size:18px;line-height:1.7;color:#56657a;}
.lead-light{color:#c2cdde;}
.muted{color:var(--ink-soft);}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:'Archivo',sans-serif;font-weight:700;font-size:16px;padding:15px 26px;border-radius:11px;cursor:pointer;transition:transform .15s,box-shadow .15s;border:none;text-align:center;}
.btn svg{flex:none;}
.btn:hover{transform:translateY(-1px);}
.btn-green{background:var(--green);color:#fff;box-shadow:0 8px 22px rgba(106,171,60,.4);}
.btn-white{background:#fff;color:var(--navy);box-shadow:0 8px 20px rgba(8,20,40,.18);font-weight:800;}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#fff;}
.btn-outline-dark{background:transparent;border:1.5px solid #d4dae2;color:var(--navy);}
.btn-sm{padding:11px 18px;font-size:15px;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft);}
.header-inner{display:flex;align-items:center;gap:22px;padding-top:12px;padding-bottom:12px;}
.logo{height:50px;width:auto;cursor:pointer;}
.nav{display:flex;gap:30px;margin-left:auto;align-items:center;}
.nav a{font-family:'Archivo',sans-serif;font-weight:700;font-size:15px;color:#54637a;border-bottom:2px solid transparent;padding:6px 1px;transition:color .15s,border-color .15s;}
.nav a:hover{color:var(--navy);}
.nav a.active{color:var(--navy);border-bottom-color:var(--green);}
.header-cta{margin-left:6px;}
.burger{display:none;margin-left:auto;align-items:center;justify-content:center;width:46px;height:46px;border:1px solid #e0e3dc;background:#fff;border-radius:10px;cursor:pointer;color:var(--navy);}
.nav-mobile{display:none;border-top:1px solid var(--border-soft);background:#fff;padding:10px 24px 18px;flex-direction:column;gap:4px;}
.nav-mobile.open{display:flex;}
.nav-mobile a{padding:13px 6px;font-family:'Archivo',sans-serif;font-weight:700;color:var(--navy);border-bottom:1px solid #f1f2ee;}
.nav-mobile a:last-of-type{border-bottom:none;}
.nav-mobile .btn{margin-top:10px;justify-content:center;}

/* ---------- Hero ---------- */
.hero{background:var(--navy);}
.hero-bar{position:relative;height:600px;overflow:hidden;}
.hero-panel{position:absolute;left:max(24px,calc((100% - var(--maxw)) / 2 + 24px));top:50%;transform:translateY(-50%);max-width:445px;z-index:5;pointer-events:none;}
.hero-panel .btn,.hero-panel a{pointer-events:auto;}
.hero-grad{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,20,40,.86) 0%,rgba(7,20,40,.54) 34%,rgba(7,20,40,0) 62%);pointer-events:none;z-index:2;}

/* Hero secondaire (pages internes) */
.page-hero{background:var(--navy);}
.page-hero .container{padding-top:72px;padding-bottom:72px;}
.page-hero .h1{color:#fff;}

/* ---------- Before / After slider ---------- */
.ba{position:relative;overflow:hidden;cursor:ew-resize;user-select:none;touch-action:none;background:var(--navy);--p:50;}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.ba-before{clip-path:inset(0 calc(100% - var(--p,50) * 1%) 0 0);}
.ba-handle{position:absolute;top:0;bottom:0;left:calc(var(--p,50) * 1%);width:3px;background:#fff;transform:translateX(-50%);box-shadow:0 0 0 1px rgba(0,0,0,.12);z-index:3;}
.ba-knob{position:absolute;top:50%;left:calc(var(--p,50) * 1%);transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(8,20,40,.3);z-index:4;}
.ba-tag{position:absolute;bottom:22px;color:#fff;font-family:'Archivo',sans-serif;font-weight:800;font-size:12px;letter-spacing:.12em;padding:7px 14px;border-radius:7px;z-index:4;pointer-events:none;}
.ba-tag-before{left:22px;background:rgba(12,39,71,.92);}
.ba-tag-after{right:22px;background:var(--green);}
.ba-hint{position:absolute;top:20px;left:50%;transform:translateX(-50%);background:rgba(7,20,40,.55);backdrop-filter:blur(4px);color:#fff;font-family:'Archivo',sans-serif;font-weight:700;font-size:12.5px;letter-spacing:.14em;padding:7px 16px;border-radius:30px;z-index:4;pointer-events:none;white-space:nowrap;}
.ba-rounded{border-radius:18px;box-shadow:0 24px 56px rgba(8,20,40,.22);}

/* ---------- Trust strip ---------- */
.trust{background:var(--bg-soft);border-bottom:1px solid var(--border-soft);}
.trust .container{padding-top:22px;padding-bottom:22px;}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.trust-item{display:flex;align-items:center;gap:11px;font-family:'Mulish',sans-serif;font-weight:700;font-size:14.5px;color:#27374d;}
.trust-item .ic{flex:none;width:38px;height:38px;border-radius:10px;background:#eaf3e1;color:var(--green-deep);display:flex;align-items:center;justify-content:center;}
.trust-item small{font-weight:500;color:var(--muted);display:block;}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);gap:18px;}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:0 2px 14px rgba(20,40,70,.04);}
.card h3{margin:0 0 9px;font-size:21px;}
.card p{font-size:15.5px;line-height:1.65;color:var(--ink-soft);}
.card-ic{display:flex;width:54px;height:54px;border-radius:14px;background:var(--navy);color:#fff;align-items:center;justify-content:center;margin-bottom:20px;}
.card-ic.green{background:var(--green);}
.card-center{text-align:center;}
.card-center .card-ic{margin-left:auto;margin-right:auto;}

.work{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:#fff;box-shadow:var(--shadow-sm);}
.work-img{aspect-ratio:16/11;background-size:cover;background-position:center;}
.work-body{padding:17px 20px;}
.work-body .t{font-family:'Archivo',sans-serif;font-weight:800;font-size:16px;color:var(--navy);}
.work-body p{font-size:13.5px;color:var(--muted);margin:4px 0 0;}

/* ---------- Section header row ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.arrow-link{display:inline-flex;align-items:center;gap:8px;font-family:'Archivo',sans-serif;font-weight:700;font-size:15.5px;color:var(--navy);border-bottom:2px solid var(--green);padding-bottom:3px;white-space:nowrap;}

/* ---------- Checklist ---------- */
.checklist{display:flex;flex-direction:column;gap:12px;}
.check-item{display:flex;align-items:center;gap:13px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px 20px;font-family:'Mulish',sans-serif;font-weight:600;font-size:16px;color:#27374d;}
.check-item .ck{color:var(--green);flex:none;}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.feature{text-align:center;padding:10px;}
.feature .ic{display:inline-flex;width:60px;height:60px;border-radius:16px;background:#eef6e6;color:var(--green-deep);align-items:center;justify-content:center;margin-bottom:16px;}
.feature h3{font-size:19px;margin:0 0 7px;}
.feature p{font-size:15px;color:var(--ink-soft);}

/* ---------- Prose (blog / legal) ---------- */
.prose{max-width:760px;margin:0 auto;font-size:17px;line-height:1.75;color:#33445c;}
.prose h2{font-size:28px;margin:42px 0 14px;color:var(--navy);}
.prose h3{font-size:21px;margin:30px 0 10px;color:var(--navy);}
.prose p{margin:0 0 18px;}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px;}
.prose li{margin:0 0 9px;}
.prose a{color:var(--green-deep);text-decoration:underline;text-underline-offset:2px;}
.prose strong{color:var(--navy);}
.prose blockquote{margin:24px 0;padding:16px 22px;background:var(--bg-soft);border-left:4px solid var(--green);border-radius:0 10px 10px 0;}

/* ---------- Answer box (GEO) ---------- */
.answer-box{background:var(--bg-soft);border:1px solid var(--border-soft);border-left:4px solid var(--green);border-radius:0 14px 14px 0;padding:22px 26px;margin:0 auto 30px;font-size:17px;line-height:1.7;color:#33445c;}
.answer-box strong{color:var(--navy);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq details{background:#fff;border:1px solid var(--border);border-radius:14px;padding:4px 22px;box-shadow:var(--shadow-sm);}
.faq summary{font-family:'Archivo',sans-serif;font-weight:800;font-size:17px;color:var(--navy);cursor:pointer;list-style:none;padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:24px;color:var(--green);font-weight:400;flex:none;}
.faq details[open] summary::after{content:"–";}
.faq details[open] summary{border-bottom:1px solid var(--border-soft);}
.faq .faq-a{padding:16px 0 20px;color:var(--ink-soft);font-size:15.5px;line-height:1.7;}

/* ---------- Contact cards & form ---------- */
.contact-card{display:flex;flex-direction:column;border-radius:18px;padding:38px;transition:transform .15s,box-shadow .15s;}
.contact-card:hover{transform:translateY(-2px);}
.contact-card .card-ic{margin-bottom:18px;}
.contact-card h2,.contact-card .h3{margin:0 0 8px;font-size:20px;}
.contact-card p{font-size:15px;line-height:1.6;margin:0 0 16px;color:var(--ink-soft);}
.contact-card strong{font-family:'Archivo',sans-serif;font-weight:800;line-height:1.15;}
.contact-card span{font-size:14px;margin-top:6px;color:var(--muted);}
.contact-card.navy{background:var(--navy);box-shadow:var(--shadow-md);color:#fff;}
.contact-card.navy .card-ic{background:var(--green);}
.contact-card.navy .h3{color:#fff;}
.contact-card.navy p{color:#c2cdde;}
.contact-card.navy strong{color:#fff;font-size:30px;letter-spacing:.01em;}
.contact-card.navy span{color:#8fa3bf;}
.contact-card.light{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);}
.contact-card.light .h3{color:var(--navy);}
.contact-card.light strong{color:var(--navy);font-size:21px;word-break:break-word;}
.contact-ic{display:inline-flex;width:54px;height:54px;border-radius:14px;align-items:center;justify-content:center;margin-bottom:18px;}
.info-card{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:var(--radius);padding:26px;}
.form{background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px;box-shadow:var(--shadow-sm);}
.form label{display:block;font-family:'Archivo',sans-serif;font-weight:700;font-size:14px;color:var(--navy);margin:0 0 7px;}
.form .field{margin-bottom:18px;}
.form input,.form select,.form textarea{width:100%;padding:13px 15px;border:1px solid #d6dbd2;border-radius:10px;font-family:'Mulish',sans-serif;font-size:15px;color:var(--ink);background:#fff;}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(106,171,60,.15);}
.form textarea{min-height:120px;resize:vertical;}

/* ---------- Breadcrumb ---------- */
.crumb{font-family:'Mulish',sans-serif;font-size:13.5px;color:var(--muted);padding:14px 0;}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--green-deep);}
.crumb span{color:var(--navy);font-weight:600;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--green);}
.cta-band .container{padding-top:48px;padding-bottom:48px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;}
.cta-band h2{font-size:32px;line-height:1.12;letter-spacing:-.02em;color:#fff;}
.cta-band p{font-size:16.5px;color:#eaf4e0;margin-top:10px;}

/* ---------- Footer ---------- */
.footer{background:var(--navy-dark);}
.footer .container{padding-top:56px;padding-bottom:30px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand{font-family:'Archivo',sans-serif;font-weight:900;font-size:28px;letter-spacing:.04em;color:#fff;line-height:1;}
.footer-brand span{color:var(--green);}
.footer-tag{font-family:'Archivo',sans-serif;font-weight:700;font-size:12px;letter-spacing:.22em;color:#7e8ea6;margin-top:6px;}
.footer p{font-family:'Mulish',sans-serif;font-size:15px;line-height:1.7;color:#9fb0c6;margin-top:18px;max-width:300px;}
.footer h4{font-family:'Archivo',sans-serif;font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--green);margin:0 0 16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-family:'Mulish',sans-serif;font-size:15px;color:#c2cdde;}
.footer-links a:hover{color:#fff;}
.footer-contact{display:flex;flex-direction:column;gap:13px;}
.footer-contact a,.footer-contact span{display:flex;align-items:center;gap:10px;font-family:'Mulish',sans-serif;font-size:15px;color:#c2cdde;}
.footer-contact a.phone{font-family:'Archivo',sans-serif;font-weight:700;font-size:18px;color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);}
.footer-bottom .container{padding-top:18px;padding-bottom:18px;font-family:'Mulish',sans-serif;font-size:13.5px;color:#7e8ea6;}
.footer-bottom a{color:#9fb0c6;text-decoration:underline;}

/* ---------- Blog index (cartes + filtres) ---------- */
.blog-hero{background:linear-gradient(180deg,#f3f7ee 0%,#ffffff 100%);border-bottom:1px solid var(--border-soft);}
.blog-hero .container{padding-top:64px;padding-bottom:40px;text-align:center;}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:28px;}
.chip{font-family:'Archivo',sans-serif;font-weight:700;font-size:13.5px;color:#46566c;background:#fff;border:1px solid var(--border);border-radius:30px;padding:9px 18px;cursor:pointer;transition:all .15s;white-space:nowrap;}
.chip:hover{border-color:var(--green);color:var(--navy);}
.chip.active{background:var(--green);border-color:var(--green);color:#fff;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s;}
.post-card:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(20,40,70,.12);}
.post-card.is-hidden{display:none;}
.post-cover{position:relative;aspect-ratio:16/10;overflow:hidden;}
.post-cover img,.post-cover svg{width:100%;height:100%;object-fit:cover;display:block;}
.post-badge{position:absolute;top:14px;left:14px;background:var(--green);color:#fff;font-family:'Archivo',sans-serif;font-weight:700;font-size:12px;letter-spacing:.03em;padding:6px 13px;border-radius:30px;}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.post-date{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);margin-bottom:10px;}
.post-card h3{font-size:19px;line-height:1.25;margin:0 0 9px;}
.post-card h3 a{color:var(--navy);}
.post-card h3 a:hover{color:var(--green-deep);}
.post-excerpt{font-size:14.5px;line-height:1.6;color:var(--ink-soft);margin:0 0 16px;}
.post-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px;}
.post-tag{font-size:12px;color:#5a6b80;background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:7px;padding:4px 10px;}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--border-soft);}
.post-read{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;}
.post-link{font-family:'Archivo',sans-serif;font-weight:700;font-size:14px;color:var(--green-deep);display:inline-flex;align-items:center;gap:6px;}
.post-link:hover{gap:9px;}
.blog-count{font-family:'Mulish',sans-serif;font-size:14px;color:var(--muted);}

/* ---------- Utilities ---------- */
.mt-0{margin-top:0;}
.mt-1{margin-top:10px;}
.mt-2{margin-top:18px;}
.mt-3{margin-top:28px;}
.mt-4{margin-top:36px;}
.flex-cta{display:flex;flex-wrap:wrap;gap:13px;}
.tag-soft{display:inline-block;background:#eef6e6;color:var(--green-deep);font-family:'Archivo',sans-serif;font-weight:700;font-size:12.5px;letter-spacing:.06em;padding:6px 12px;border-radius:30px;}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .nav,.header-cta{display:none;}
  .burger{display:inline-flex;}
  .split,.grid-2,.grid-3,.post-grid{grid-template-columns:1fr;}
  .grid-4,.trust-grid{grid-template-columns:1fr 1fr;}
  .cta-band .container{grid-template-columns:1fr;}
  .footer .container{grid-template-columns:1fr 1fr;gap:28px;}
  .h1{font-size:34px;}
  .h2{font-size:28px;}
  .section{padding:60px 0;}
  .hero-bar{height:520px;}
  .hero-panel{max-width:none;right:22px;left:24px;}
  .hero-grad{background:linear-gradient(90deg,rgba(7,20,40,.9) 0%,rgba(7,20,40,.7) 60%,rgba(7,20,40,.4) 100%);}
}
@media (max-width:520px){
  .grid-4,.trust-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;}
}