:root{
  --si-orange:#ef7d18;
  --si-orange-2:#d96c0c;
  --si-orange-ink:#3a1d00;
  --si-green:#0a8a57;
  --si-green-dark:#0c5236;
  --si-green-deep:#093a26;
  --si-ink:#1d241f;
  --si-muted:#697066;
  --si-bg:#ffffff;
  --si-bg-2:#f1f7f2;
  --si-card:#ffffff;
  --si-line:rgba(13,40,30,.12);
  --si-shadow:0 22px 55px rgba(13,40,30,.1);
  --si-shadow-soft:0 10px 26px rgba(13,40,30,.07);
  --si-radius:20px;
  --si-radius-sm:13px;
  --si-container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Manrope,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--si-ink);background:var(--si-bg);line-height:1.7}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:Manrope,sans-serif;font-weight:800;color:var(--si-green-dark);letter-spacing:-.02em;line-height:1.08;margin:0}
.si-container{width:min(var(--si-container),calc(100% - 36px));margin-inline:auto}
.si-section{padding:84px 0}
.si-section.alt{background:var(--si-bg-2)}
.si-eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border-radius:999px;background:rgba(239,125,24,.12);color:var(--si-orange-2);font-weight:800;font-size:13px;letter-spacing:.04em;text-transform:uppercase}
.si-eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--si-orange)}
.si-title{font-size:clamp(30px,4.6vw,54px);margin:16px 0 14px}
.si-title.sm{font-size:clamp(25px,3.4vw,40px)}
.si-lead{margin:0;max-width:660px;font-size:clamp(16px,1.6vw,18px);color:var(--si-muted)}
.si-section-head{margin-bottom:34px;max-width:760px}

/* Buttons */
.si-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:52px;padding:0 22px;border-radius:999px;font-weight:800;font-size:15px;border:2px solid transparent;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.si-btn:hover{transform:translateY(-2px)}
.si-btn-primary{background:var(--si-orange);color:var(--si-orange-ink)}
.si-btn-primary:hover{background:var(--si-orange-2);color:#fff}
.si-btn-green{background:var(--si-green);color:#fff}
.si-btn-green:hover{background:var(--si-green-dark)}
.si-btn-outline{border-color:var(--si-green);color:var(--si-green-dark);background:transparent}
.si-btn-outline:hover{background:var(--si-green);color:#fff}
.si-btn-light{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.32)}
.si-btn-light:hover{background:rgba(255,255,255,.24)}

/* Topbar */
.si-topbar{background:var(--si-green-deep);color:#d7e8df;font-size:13.5px}
.si-topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:9px 0;flex-wrap:wrap}
.si-topbar a{color:#d7e8df;font-weight:700}
.si-topbar a:hover{color:#fff}
.si-topbar .sep{opacity:.4}

/* Header */
.si-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--si-line);transition:box-shadow .2s ease}
.si-header.is-scrolled{box-shadow:0 10px 28px rgba(13,40,30,.08)}
.si-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:82px}
.si-logo{display:flex;align-items:center;gap:13px;min-width:0}
.si-logo img{height:56px;width:auto;object-fit:contain}
.si-nav{display:flex;align-items:center;gap:6px}
.si-nav a{padding:11px 14px;border-radius:12px;font-weight:800;font-size:14.5px;color:var(--si-ink);transition:background .2s ease,color .2s ease}
.si-nav a:hover{background:rgba(10,138,87,.1);color:var(--si-green-dark)}
.si-header-actions{display:flex;align-items:center;gap:12px}
.si-burger{display:none;width:48px;height:48px;border:1px solid var(--si-line);border-radius:13px;background:var(--si-card);align-items:center;justify-content:center;color:var(--si-ink)}
.si-burger i{font-size:24px}
.si-mobile{display:none;border-top:1px solid var(--si-line);background:var(--si-bg)}
.si-mobile.is-open{display:block}
.si-mobile-inner{padding:16px 0 24px;display:grid;gap:8px}
.si-mobile a{padding:14px 16px;border-radius:14px;background:var(--si-bg-2);border:1px solid var(--si-line);font-weight:800;color:var(--si-ink)}
.si-mobile .si-btn{margin-top:6px}

/* Hero */
.si-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#ffffff,#f4faf5)}
.si-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center;padding:62px 0}
.si-hero h1{font-size:clamp(34px,5.2vw,62px);margin:16px 0 18px}
.si-hero p{font-size:clamp(16px,1.8vw,19px);color:var(--si-muted);max-width:580px;margin:0}
.si-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.si-hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.si-pill{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;background:var(--si-card);border:1px solid var(--si-line);font-size:13px;font-weight:800;color:var(--si-green-dark)}
.si-pill i{color:var(--si-orange);font-size:17px}
.si-hero-media{position:relative;min-height:480px;border-radius:26px;overflow:hidden;box-shadow:var(--si-shadow);background:#e6efe7}
.si-hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s ease,visibility .8s ease,transform 1s ease;transform:scale(1.04)}
.si-hero-slide.is-active{opacity:1;visibility:visible;transform:scale(1)}
.si-hero-slide img{width:100%;height:100%;object-fit:cover}
.si-hero-frame{position:absolute;inset:0;border:10px solid rgba(255,255,255,.5);border-radius:26px;pointer-events:none}
.si-hero-tag{position:absolute;left:20px;bottom:20px;background:var(--si-orange);color:var(--si-orange-ink);padding:11px 16px;border-radius:13px;font-weight:900;font-size:13px;box-shadow:var(--si-shadow-soft);z-index:2}

/* Hero slider controls */
.si-hero-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--si-green-dark);display:grid;place-items:center;border:none;box-shadow:var(--si-shadow-soft);z-index:3;transition:background .2s ease}
.si-hero-nav:hover{background:var(--si-orange);color:#fff}
.si-hero-nav i{font-size:23px}
.si-hero-prev{left:14px}
.si-hero-next{right:14px}
.si-hero-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.si-hero-dot{width:10px;height:10px;border-radius:999px;border:none;background:rgba(255,255,255,.7);cursor:pointer;padding:0;transition:width .2s ease,background .2s ease}
.si-hero-dot.is-active{width:26px;background:var(--si-orange)}

/* Panier */
.si-cart{position:relative;width:48px;height:48px;border-radius:14px;border:1px solid var(--si-line);background:var(--si-card);display:inline-flex;align-items:center;justify-content:center;color:var(--si-ink);transition:background .2s ease}
.si-cart:hover{background:rgba(10,138,87,.1);color:var(--si-green-dark)}
.si-cart i{font-size:23px}
.si-cart-count{position:absolute;top:-7px;right:-7px;min-width:20px;height:20px;padding:0 5px;border-radius:999px;background:var(--si-orange);color:var(--si-orange-ink);font-size:11px;font-weight:900;display:flex;align-items:center;justify-content:center;line-height:1}
.si-mobile .si-cart{width:100%;border-radius:14px;justify-content:flex-start;gap:10px;padding:0 16px;height:52px;font-weight:800}
.si-mobile .si-cart .si-cart-count{position:static;margin-left:auto}

/* Configurateur */
.si-config{background:linear-gradient(180deg,var(--si-green-dark),var(--si-green-deep));color:#e8f3ec}
.si-config .si-eyebrow{background:rgba(255,255,255,.14);color:#ffd9b3}
.si-config .si-eyebrow:before{background:var(--si-orange)}
.si-config .si-title{color:#fff}
.si-config .si-lead{color:rgba(232,243,236,.85)}
.si-config-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start;margin-top:34px}
.si-config-card{background:#fff;color:var(--si-ink);border-radius:24px;padding:28px;box-shadow:var(--si-shadow)}
.si-q{margin-bottom:22px}
.si-q-label{display:block;font-weight:900;font-size:14px;color:var(--si-green-dark);margin-bottom:10px}
.si-types{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.si-type{display:flex;align-items:center;gap:10px;padding:13px 14px;border:1.5px solid var(--si-line);border-radius:15px;background:#fff;font-weight:800;font-size:14px;color:var(--si-ink);text-align:left;transition:border-color .2s ease,background .2s ease}
.si-type i{font-size:20px;color:var(--si-green)}
.si-type:hover{border-color:rgba(10,138,87,.5)}
.si-type.is-active{border-color:var(--si-green);background:rgba(10,138,87,.08);color:var(--si-green-dark)}
.si-surface-row{display:flex;align-items:center;gap:14px}
.si-surface-row input[type=range]{flex:1;accent-color:var(--si-orange)}
.si-surface-val{min-width:96px;text-align:right;font-weight:900;font-size:18px;color:var(--si-green-dark)}
.si-config-card select,.si-config-card input[type=text],.si-config-card input[type=tel],.si-config-card input[type=email]{width:100%;border:1.5px solid var(--si-line);border-radius:15px;padding:13px 14px;font:inherit;background:#fff;color:var(--si-ink)}
.si-grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.si-config-card input:focus,.si-config-card select:focus{outline:none;border-color:var(--si-green);box-shadow:0 0 0 4px rgba(10,138,87,.14)}
.si-estimate{position:sticky;top:100px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:24px;padding:28px}
.si-estimate h3{color:#fff;font-size:20px;margin-bottom:6px}
.si-estimate .si-amount{font-family:Manrope,sans-serif;font-weight:800;font-size:clamp(30px,4vw,44px);color:#ffce9b;line-height:1.05;margin:14px 0 4px}
.si-estimate .si-amount small{display:block;font-size:13px;font-weight:700;color:rgba(232,243,236,.7);margin-top:6px}
.si-estimate-recap{margin:18px 0;display:grid;gap:9px;font-size:14px}
.si-estimate-recap div{display:flex;justify-content:space-between;gap:12px;color:rgba(232,243,236,.9);font-weight:700;border-bottom:1px dashed rgba(255,255,255,.16);padding-bottom:8px}
.si-estimate-recap span:last-child{color:#fff;font-weight:800;text-align:right}
.si-estimate-actions{display:grid;gap:10px;margin-top:18px}
.si-note{font-size:12px;color:rgba(232,243,236,.7);line-height:1.6;margin-top:14px}
.si-form-notice{margin-bottom:16px;padding:13px 15px;border-radius:14px;font-size:14px;font-weight:800}
.si-form-notice.ok{background:rgba(10,138,87,.16);color:#bdebd4;border:1px solid rgba(10,138,87,.5)}
.si-form-notice.err{background:rgba(226,75,74,.18);color:#f3b3b3;border:1px solid rgba(226,75,74,.5)}
.si-hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Cards / solutions */
.si-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.si-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.si-card{background:var(--si-card);border:1px solid var(--si-line);border-radius:20px;padding:26px;box-shadow:var(--si-shadow-soft);transition:transform .2s ease,box-shadow .2s ease}
.si-card:hover{transform:translateY(-5px);box-shadow:var(--si-shadow)}
.si-card-ic{width:54px;height:54px;display:grid;place-items:center;border-radius:16px;background:rgba(10,138,87,.1);color:var(--si-green);margin-bottom:16px}
.si-card-ic i{font-size:26px}
.si-card h3{font-size:22px;margin-bottom:8px}
.si-card p{margin:0;color:var(--si-muted);font-size:15px}
.si-card-link{display:inline-flex;gap:7px;align-items:center;margin-top:16px;color:var(--si-orange-2);font-weight:800;font-size:14px}

/* Products */
.si-products{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.si-product{background:var(--si-card);border:1px solid var(--si-line);border-radius:20px;overflow:hidden;box-shadow:var(--si-shadow-soft);transition:transform .2s ease}
.si-product:hover{transform:translateY(-5px)}
.si-product-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:#e6efe7}
.si-product-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.si-product:hover .si-product-media img{transform:scale(1.05)}
.si-product-badge{position:absolute;top:14px;left:14px;background:var(--si-orange);color:var(--si-orange-ink);font-size:12px;font-weight:900;padding:6px 11px;border-radius:999px}
.si-product-body{padding:20px}
.si-product h3{font-size:19px;margin-bottom:8px}
.si-product p{margin:0 0 16px;color:var(--si-muted);font-size:14px}
.si-product-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.si-product-actions .si-btn{min-height:44px;font-size:13px;padding:0 12px}
.si-product-actions .full{grid-column:1/-1}

/* Realisations */
.si-real{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.si-real-main,.si-real-mini{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--si-shadow-soft)}
.si-real-main{min-height:460px}
.si-real-side{display:grid;grid-template-rows:1fr 1fr;gap:22px}
.si-real-mini{min-height:218px}
.si-real img{width:100%;height:100%;object-fit:cover}
.si-real .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,58,38,.05),rgba(9,58,38,.8))}
.si-real-cap{position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#fff}
.si-real-cap h3{color:#fff;font-size:26px;margin-bottom:6px}
.si-real-cap p{margin:0;font-size:14px;color:rgba(255,255,255,.9)}
.si-real-mini .si-real-cap h3{font-size:18px}

/* Chiffres */
.si-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.si-stat{text-align:center;background:var(--si-card);border:1px solid var(--si-line);border-radius:20px;padding:30px 18px;box-shadow:var(--si-shadow-soft)}
.si-stat strong{display:block;font-family:Manrope,sans-serif;font-weight:800;font-size:clamp(30px,4vw,46px);color:var(--si-orange-2);line-height:1}
.si-stat span{display:block;margin-top:10px;font-size:14px;font-weight:800;color:var(--si-muted)}

/* Contact */
.si-contact{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.si-contact-info{margin-top:20px;display:grid;gap:6px}
.si-contact-info p{margin:0;font-weight:700}
.si-contact-info a{color:var(--si-green-dark);font-weight:800}
.si-form{display:grid;gap:14px;background:var(--si-bg-2);border:1px solid var(--si-line);border-radius:22px;padding:28px;box-shadow:var(--si-shadow-soft)}
.si-field{display:grid;gap:6px}
.si-field>span{font-size:13px;font-weight:900;color:var(--si-green-dark)}
.si-form input,.si-form select,.si-form textarea{width:100%;border:1.5px solid var(--si-line);border-radius:14px;padding:12px 14px;font:inherit;background:#fff;color:var(--si-ink)}
.si-form textarea{resize:vertical;min-height:104px}
.si-form input:focus,.si-form select:focus,.si-form textarea:focus{outline:none;border-color:var(--si-green);box-shadow:0 0 0 4px rgba(10,138,87,.14)}
.si-hint{font-size:12px;color:var(--si-muted);font-weight:700;margin:0}

/* Footer */
.si-footer{background:var(--si-green-deep);color:#cfe3d7;padding:54px 0 30px}
.si-footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:26px}
.si-footer h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.06em;font-weight:900;margin-bottom:14px}
.si-footer p,.si-footer a{color:#cfe3d7;font-size:14px;font-weight:600}
.si-footer a:hover{color:#ffce9b}
.si-footer-brand img{height:54px;width:auto;background:#fff;border-radius:12px;padding:6px;margin-bottom:12px}
.si-footer-links{display:grid;gap:8px}
.si-footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#9cbcab;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* Float + reveal */
.si-wa-float{position:fixed;right:18px;bottom:18px;z-index:120;background:#25d366;color:#fff;border-radius:999px;padding:13px 18px;font-weight:900;box-shadow:0 14px 32px rgba(37,211,102,.4);display:inline-flex;gap:8px;align-items:center}
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* Responsive */
@media(max-width:1080px){
  .si-nav{display:none}
  .si-header-actions .si-btn{display:none}
  .si-burger{display:inline-flex}
  .si-hero-grid,.si-config-wrap,.si-real,.si-contact,.si-footer-grid{grid-template-columns:1fr}
  .si-grid-4,.si-products,.si-stats{grid-template-columns:repeat(2,1fr)}
  .si-grid-3{grid-template-columns:1fr}
  .si-estimate{position:static}
}
@media(max-width:620px){
  .si-section{padding:60px 0}
  .si-grid-4,.si-products,.si-stats,.si-types,.si-grid2,.si-product-actions{grid-template-columns:1fr}
  .si-hero-media,.si-real-main{min-height:360px}
  .si-btn{width:100%}
  .si-hero-actions,.si-estimate-actions{flex-direction:column}
  .si-topbar-inner{justify-content:center;text-align:center}
}

/* Animations des boutons */
.si-btn{position:relative;overflow:hidden}
.si-btn::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;background:linear-gradient(120deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-20deg);transition:left .55s ease;pointer-events:none}
.si-btn:hover::after{left:150%}
.si-btn:active{transform:translateY(0) scale(.97)}
.si-btn-primary:hover{box-shadow:0 12px 26px rgba(239,125,24,.32)}
.si-btn-green:hover{box-shadow:0 12px 26px rgba(10,138,87,.3)}
@keyframes si-wa-pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.55)}70%{box-shadow:0 0 0 20px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
@keyframes si-wa-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.si-wa-float{animation:si-wa-bob 2.8s ease-in-out infinite}
.si-wa-float::before{content:"";position:absolute;inset:0;border-radius:999px;animation:si-wa-pulse 2s ease-out infinite;pointer-events:none;z-index:-1}
.si-wa-float:hover{transform:translateY(-4px) scale(1.05)}
@media (prefers-reduced-motion: reduce){.si-wa-float,.si-wa-float::before,.si-btn::after{animation:none;transition:none}}

/* Mega menu */
.si-nav-item{position:relative;display:flex;align-items:center}
.si-nav-link{display:inline-flex;align-items:center;gap:7px}
.si-caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s ease}
.si-nav-item:hover .si-caret,.si-nav-item:focus-within .si-caret{transform:rotate(225deg) translateY(1px)}
.si-mega{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);width:min(880px,92vw);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,transform .22s ease,visibility .22s ease;padding-top:12px;z-index:95}
.si-nav-item:hover .si-mega,.si-nav-item:focus-within .si-mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.si-mega-panel{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px;padding:18px;background:#fff;border:1px solid var(--si-line);border-radius:20px;box-shadow:var(--si-shadow)}
.si-mega-feature{position:relative;overflow:hidden;border-radius:15px;min-height:210px;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;background-size:cover;background-position:center}
.si-mega-feature::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,58,38,.12),rgba(9,58,38,.82))}
.si-mega-feature h4,.si-mega-feature p{position:relative;z-index:2;color:#fff}
.si-mega-feature h4{font-size:19px;margin:0 0 6px}
.si-mega-feature p{font-size:13px;margin:0;color:rgba(255,255,255,.92);font-weight:600}
.si-mega-col{display:flex;flex-direction:column;gap:5px}
.si-mega-col h5{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--si-orange-2);font-weight:900;margin:2px 0 6px}
.si-mega-link{display:flex;align-items:center;gap:11px;padding:8px;border-radius:12px;transition:background .2s ease}
.si-mega-link:hover{background:rgba(10,138,87,.08)}
.si-mega-thumb{width:46px;height:46px;border-radius:10px;object-fit:cover;flex:0 0 auto;background:#e6efe7}
.si-mega-link strong{display:block;font-size:14px;font-weight:800;color:var(--si-green-dark)}
.si-mega-link small{display:block;font-size:12px;color:var(--si-muted);font-weight:600;line-height:1.4}
.si-mega-simple{display:block;padding:9px 8px;border-radius:10px;font-size:14px;font-weight:800;color:var(--si-ink);transition:background .2s ease,color .2s ease}
.si-mega-simple:hover{background:rgba(10,138,87,.08);color:var(--si-green-dark)}