/* =========================================================
   NSANZA INVEST GROUP — styles communs (menu + pied de page)
   Utilisé par toutes les pages du site.
   ========================================================= */
:root{--nig-deep:#082b34;--nig-ink:#12313a;--nig-green:#126b5b;--nig-orange:#f28a08;--nig-orange-dark:#db7800;--nig-line:#e2ebe7}
html{scroll-behavior:smooth;scroll-padding-top:90px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{overflow-x:clip}

/* Lien d'évitement (accessibilité clavier) */
.skip-link{position:absolute;top:-60px;left:10px;z-index:2000;background:#fff;color:var(--nig-ink);padding:12px 16px;border-radius:8px;font-weight:600;text-decoration:none}
.skip-link:focus{top:10px}

/* ---------- Menu ---------- */
.nig-nav{position:absolute;top:0;left:0;right:0;z-index:1000;height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 max(32px,calc((100% - 1160px)/2));background:transparent;border-bottom:1px solid transparent;font-family:Poppins,Arial,sans-serif;transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease}
.nig-nav.is-scrolled{position:fixed;background:rgba(255,255,255,.97);border-bottom-color:var(--nig-line);box-shadow:0 8px 25px rgba(8,43,52,.11);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.nig-nav .nig-brand{display:flex;align-items:center;flex:0 0 auto}
.nig-nav .nig-brand img{display:block;width:auto;height:60px;max-width:180px;object-fit:contain;margin:0}
.nig-nav .nig-menu{display:flex;align-items:center;gap:clamp(14px,1.8vw,26px);margin:0;padding:0}
.nig-nav .nig-menu a{position:relative;display:inline-block;margin:0;padding:6px 0;background:none;color:#fff;font-size:13px;font-weight:600;letter-spacing:.01em;text-decoration:none;text-shadow:0 1px 6px rgba(0,0,0,.35);transition:color .2s ease}
.nig-nav .nig-menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--nig-orange);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nig-nav .nig-menu a:hover{color:#ffc278;background:none}
.nig-nav .nig-menu a:hover::after,.nig-nav .nig-menu a[aria-current="page"]::after{transform:scaleX(1)}
.nig-nav .nig-lang{margin:0;padding:8px 12px;border:1px solid rgba(255,255,255,.85);border-radius:9px;background:transparent;color:#fff;font:700 13px Poppins,Arial,sans-serif;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.nig-nav .nig-lang:hover{background:var(--nig-orange);border-color:var(--nig-orange);color:#fff}
.nig-nav.is-scrolled .nig-menu a{color:var(--nig-ink);text-shadow:none}
.nig-nav.is-scrolled .nig-menu a:hover{color:var(--nig-green)}
.nig-nav.is-scrolled .nig-lang{color:var(--nig-ink);background:#fff;border-color:#cfded8}
.nig-nav.is-scrolled .nig-lang:hover{background:var(--nig-orange);border-color:var(--nig-orange);color:#fff}
.nig-nav .nig-burger{display:none;flex-direction:column;gap:5px;background:transparent;border:0;padding:12px;margin:0;cursor:pointer}
.nig-nav .nig-burger span{display:block;width:25px;height:3px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.nig-nav.is-scrolled .nig-burger span{background:var(--nig-ink)}
.nig-nav .nig-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nig-nav .nig-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nig-nav .nig-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.nig-nav :is(a,button):focus-visible{outline:3px solid var(--nig-orange);outline-offset:4px}
@media(max-width:1050px){.nig-nav{padding:0 24px}}
@media(max-width:800px){
 .nig-nav{height:72px;padding:0 20px}
 .nig-nav .nig-brand img{height:52px}
 .nig-nav .nig-burger{display:flex}
 .nig-nav .nig-menu{display:none;position:absolute;left:0;right:0;top:72px;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 20px;background:#fff;border-bottom:1px solid var(--nig-line);box-shadow:0 15px 25px rgba(0,0,0,.16)}
 .nig-nav .nig-menu.is-open{display:flex}
 .nig-nav .nig-menu a{color:var(--nig-ink);text-shadow:none;font-size:15px;padding:13px 4px;border-bottom:1px solid #f0f4f2}
 .nig-nav .nig-menu a::after{display:none}
 .nig-nav .nig-menu a[aria-current="page"]{color:var(--nig-green)}
 .nig-nav .nig-lang{align-self:flex-start;margin-top:14px;color:var(--nig-ink);border-color:#cfded8}
 .nig-nav.menu-open{position:fixed;background:#fff}
 .nig-nav.menu-open .nig-burger span{background:var(--nig-ink)}
}
@media(prefers-reduced-motion:reduce){.nig-nav,.nig-nav *{transition:none!important}}

/* ---------- Bouton WhatsApp flottant ---------- */
.nig-whatsapp{position:fixed;right:20px;bottom:20px;z-index:900;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#25d366;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.22);transition:transform .2s ease}
.nig-whatsapp:hover{transform:scale(1.07)}
.nig-whatsapp:focus-visible{outline:3px solid var(--nig-orange);outline-offset:3px}
.nig-whatsapp svg{width:30px;height:30px;fill:currentColor}

/* ---------- Pied de page ---------- */
#contact.footer-v13{background:#082c35;color:#f4fbfb;padding:0!important;margin:0!important;font-family:inherit;overflow:hidden}
#contact.footer-v13 *,#contact.footer-v13 *::before,#contact.footer-v13 *::after{box-sizing:border-box}
#contact.footer-v13 .footer-v13-inner{width:min(1220px,calc(100% - 48px));max-width:1220px;margin-inline:auto;padding:0}
#contact.footer-v13 .footer-v13-top{display:grid;grid-template-columns:1.2fr .85fr 1.2fr 1.15fr;gap:clamp(24px,3.2vw,52px);padding:clamp(56px,6vw,90px) 0 64px;align-items:start}
#contact.footer-v13 .footer-v13-top>div{min-width:0}
#contact.footer-v13 .footer-logo{display:block;width:118px;max-width:100%;height:auto;object-fit:contain;margin:0 0 16px}
#contact.footer-v13 h2{font-size:clamp(19px,1.6vw,24px);line-height:1.35;margin:0 0 14px;color:#fff;font-weight:700}
#contact.footer-v13 h3{font-size:16px;line-height:1.4;color:#fff;font-weight:700;margin:8px 0 23px}
#contact.footer-v13 p{font-size:14px;line-height:1.8;margin:0 0 12px;color:#d7e8e9}
#contact.footer-v13 .footer-v13-description{color:#a9c5c7;max-width:32ch;margin-top:18px}
#contact.footer-v13 .footer-v13-links a,#contact.footer-v13 .footer-v13-contact a{display:block;text-decoration:none;color:#d7e8e9;font-size:14px;line-height:1.65;margin-bottom:15px;overflow-wrap:anywhere;transition:color .2s ease,transform .2s ease}
#contact.footer-v13 .footer-v13-contact a{display:flex;gap:10px;align-items:baseline}
#contact.footer-v13 .footer-v13-contact a span{flex:0 0 16px;color:#f69a1b;font-size:16px}
#contact.footer-v13 a:hover{color:#ffae3d}
#contact.footer-v13 .footer-v13-links a:hover{transform:translateX(3px)}
#contact.footer-v13 .footer-v13-form form{display:flex;flex-direction:column;gap:11px;margin:0}
#contact.footer-v13 .footer-v13-form input,#contact.footer-v13 .footer-v13-form textarea{display:block;width:100%;border:1px solid rgba(255,255,255,.24);border-radius:10px;background:#fff;color:#183940;padding:14px 15px;font:inherit;font-size:14px;outline:none;box-shadow:none;margin:0;min-height:48px}
#contact.footer-v13 .footer-v13-form textarea{min-height:115px;resize:vertical}
#contact.footer-v13 .footer-v13-form input:focus,#contact.footer-v13 .footer-v13-form textarea:focus{border-color:#f79510;box-shadow:0 0 0 3px rgba(247,149,16,.2)}
#contact.footer-v13 .footer-v13-form button{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;background:#f28a08;color:#fff;border:0;border-radius:10px;min-height:49px;padding:13px 18px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease,transform .2s ease}
#contact.footer-v13 .footer-v13-form button:hover{background:#db7800;transform:translateY(-1px)}
#contact.footer-v13 .footer-v13-form button:focus-visible,#contact.footer-v13 a:focus-visible{outline:2px solid #f9a83d;outline-offset:3px}
#contact.footer-v13 .footer-v13-sr{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
#contact.footer-v13 .footer-v13-bottom{border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;align-items:center;gap:18px;padding:21px 0 25px}
#contact.footer-v13 .footer-v13-bottom .copyright{padding:0;margin:0!important;text-align:left;background:none;border:0;font-size:12px;color:#bdd4d6}
#contact.footer-v13 .footer-v13-bottom>a{font-size:12px;text-decoration:none;color:#d5e6e7;white-space:nowrap}
@media(max-width:1050px){#contact.footer-v13 .footer-v13-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 48px}}
@media(max-width:600px){#contact.footer-v13 .footer-v13-inner{width:calc(100% - 36px)}#contact.footer-v13 .footer-v13-top{grid-template-columns:minmax(0,1fr);gap:28px;padding:48px 0 42px}#contact.footer-v13 h3{margin-bottom:14px}#contact.footer-v13 .footer-v13-bottom{flex-direction:column;align-items:flex-start;gap:10px}#contact.footer-v13 .footer-v13-description{max-width:45ch}}
@media(prefers-reduced-motion:reduce){#contact.footer-v13 a,#contact.footer-v13 button{transition:none!important}}
#contact.footer-v13 :is(a,button,input,textarea):focus-visible{outline:3px solid #ffad39;outline-offset:3px}
#contact.footer-v13 .footer-v13-socials{display:flex;gap:10px;margin-top:20px}
#contact.footer-v13 .footer-v13-socials a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.25);color:#d7e8e9;text-decoration:none;transition:background-color .2s,border-color .2s}
#contact.footer-v13 .footer-v13-socials a:hover{background:var(--nig-orange);border-color:var(--nig-orange);color:#fff}
#contact.footer-v13 .footer-v13-socials svg{width:17px;height:17px;fill:currentColor}
#contact.footer-v13 .footer-v13-status{min-height:1.4em;margin:4px 0 0;font-size:13px;color:#bfe7d0}
#contact.footer-v13 .footer-v13-status.is-error{color:#ffb4a8}
#contact.footer-v13 .footer-v13-hp{position:absolute!important;left:-9999px!important}
#contact.footer-v13 .footer-v13-form button[disabled]{opacity:.7;cursor:wait}
@media(max-width:700px){#contact.footer-v13 .footer-v13-contact a{font-size:13px}}

/* Accordéons : accessibles au clavier */
.accordion-header{cursor:pointer}
.accordion-header:focus-visible{outline:3px solid var(--nig-orange);outline-offset:3px}

/* En-tête des pages projets : titres adaptés à toutes les tailles d'écran */
header.header-background .overlay-content h1{font-size:clamp(2.1rem,6vw,5.5rem);line-height:1.08;margin:0 0 1rem;word-break:normal;overflow-wrap:normal}
header.header-background .overlay-content p{font-size:clamp(1rem,2.4vw,2.5rem);line-height:1.35;letter-spacing:.02em}
@media(max-width:800px){
 header.header-background{padding:90px 0 0!important;min-height:60svh}
 header.header-background .overlay-content{padding:0 24px;text-align:left}
}
/* Voile sombre pour que le titre reste lisible sur toutes les photos */
header.header-background{position:relative;isolation:isolate}
header.header-background::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(8,43,52,.62) 0%,rgba(8,43,52,.35) 45%,rgba(8,43,52,.55) 100%)}
header.header-background .overlay-content{position:relative;text-shadow:0 2px 14px rgba(0,0,0,.35)}

/* ---------- Bouton « retour en haut » (toutes les pages) ---------- */
.nig-top{position:fixed;right:28px;bottom:92px;z-index:900;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#082b34;color:#fff;text-decoration:none;font-size:20px;line-height:1;box-shadow:0 8px 20px rgba(0,0,0,.2);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s ease,transform .25s ease,visibility .25s}
.nig-top.is-visible{opacity:1;visibility:visible;transform:none}
.nig-top:hover{background:#126b5b}
.nig-top:focus-visible{outline:3px solid #f28a08;outline-offset:3px}
@media(max-width:800px){.nig-top{right:24px;bottom:86px}}
@media(prefers-reduced-motion:reduce){.nig-top{transition:none}}

/* Liens Confidentialité / Conditions dans le pied de page */
.footer-legal{display:inline-flex;flex-wrap:wrap;gap:6px 18px}
#contact.footer-v13 .footer-legal a{display:inline;margin:0;font-size:13px;color:#ccd9dc;text-decoration:none}
#contact.footer-v13 .footer-legal a:hover{color:#fff;text-decoration:underline}

/* Adresses dans le pied de page */
#contact.footer-v13 .footer-addresses{margin-top:14px;display:grid;gap:10px}
#contact.footer-v13 .footer-addresses p{margin:0;font-size:13px;line-height:1.5;color:#ccd9dc}
#contact.footer-v13 .footer-addresses strong{display:block;color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}