/* ====== RFB — Ravalement de façade Bons-en-Chablais ====== */
:root{
 --glacier:#4FA3D9; --glacier-d:#3B8CC2; --marine:#0F2D52; --marine-2:#153a68;
 --anthra:#2E3138; --white:#fff;
 --cream:#F5F2EC; --mist:#EAF3FA; --line:#dde5ec; --ink:#20242b; --muted:#5b6572;
 --maxw:1220px; --rad:5px; --radlg:10px;
 --shadow:0 18px 50px -22px rgba(15,45,82,.35); --shadow-s:0 8px 24px -14px rgba(15,45,82,.4);
 --f-head:'Oswald',Impact,sans-serif; --f-body:'Libre Franklin',system-ui,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f-body);color:var(--ink);background:var(--white);font-size:17px;line-height:1.72;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--marine);text-decoration:none}
h1,h2,h3,h4{font-family:var(--f-head);font-weight:600;line-height:1.12;letter-spacing:.01em;text-transform:uppercase;color:var(--marine);margin:.2em 0 .5em}
h1{font-size:clamp(2.1rem,5.4vw,3.8rem);font-weight:700;line-height:1.08}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{margin:0 0 1.05em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{font-family:var(--f-head);text-transform:uppercase;letter-spacing:.18em;font-size:.82rem;font-weight:600;color:var(--glacier-d);display:inline-flex;align-items:center;gap:.55em;margin-bottom:.5em}
.eyebrow::before{content:'';width:26px;height:2px;background:var(--glacier)}
.lead{font-size:1.12rem;color:var(--muted)}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--f-head);text-transform:uppercase;letter-spacing:.05em;font-weight:600;font-size:.98rem;padding:.85em 1.5em;border-radius:var(--rad);border:2px solid transparent;cursor:pointer;transition:.2s;line-height:1}
.btn--primary{background:var(--glacier);color:#fff !important;border-color:var(--glacier)}
.btn--primary:hover{background:var(--marine);border-color:var(--marine)}
.btn--marine{background:var(--marine);color:#fff !important;border-color:var(--marine)}
.btn--marine:hover{background:var(--glacier);border-color:var(--glacier)}
.btn--ghost{background:transparent;color:var(--marine) !important;border-color:var(--marine)}
.btn--ghost:hover{background:var(--marine);color:#fff !important}
.btn--light{background:#fff;color:var(--marine) !important;border-color:#fff}
.btn--light:hover{background:var(--glacier);color:#fff !important;border-color:var(--glacier)}
.btn--ghost-light{background:transparent;color:#fff !important;border-color:rgba(255,255,255,.6)}
.btn--ghost-light:hover{background:#fff;color:var(--marine) !important;border-color:#fff}
/* header */
.rfb-head{position:fixed;top:0;left:0;right:0;z-index:100;padding:14px 0;transition:.25s}
.rfb-head .bar{max-width:var(--maxw);margin:0 auto;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(15,45,82,.08);box-shadow:var(--shadow-s);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:9px 16px}
.rfb-head.scrolled{padding:8px 0}
.logo{display:flex;align-items:center}
.logo img{height:50px !important;width:auto !important}
.nav{display:flex;align-items:center;gap:2px}
.nav>li{list-style:none;position:relative}
.nav>li>a{display:flex;align-items:center;gap:.4em;padding:.7em .85em;font-family:var(--f-head);text-transform:uppercase;font-size:.9rem;letter-spacing:.03em;color:var(--anthra);font-weight:500;border-radius:6px}
.nav>li>a:hover,.nav>li.is-open>a{color:var(--glacier-d);background:var(--mist)}
.nav .caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:.2s;opacity:.6}
.nav>li.is-open .caret{transform:rotate(-135deg);margin-top:2px}
.mega{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);width:min(760px,86vw);background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:20px;opacity:0;visibility:hidden;transition:.2s;display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px 22px}
.nav>li.is-open .mega,.nav>li:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega.mega--2{grid-template-columns:1fr 1fr;width:min(560px,86vw)}
.mega .col-h{font-family:var(--f-head);text-transform:uppercase;font-size:.75rem;letter-spacing:.14em;color:var(--glacier-d);grid-column:1/-1;margin:2px 0 6px;font-weight:600}
.mega a{display:block;padding:.5em .6em;border-radius:7px;color:var(--anthra);font-size:.95rem;transition:.15s}
.mega a:hover{background:var(--mist);color:var(--marine);padding-left:.9em}
.mega .feat{grid-column:auto;background:linear-gradient(150deg,var(--marine),var(--marine-2));color:#fff;border-radius:10px;padding:16px;display:flex;flex-direction:column;justify-content:flex-end}
.mega .feat b{font-family:var(--f-head);text-transform:uppercase;font-size:1.05rem}
.mega .feat span{font-size:.85rem;opacity:.85}
.head-cta{display:flex;align-items:center;gap:12px}
.head-tel{display:flex;align-items:center;gap:.5em;font-family:var(--f-head);font-size:1.02rem;color:var(--marine);font-weight:600;white-space:nowrap}
.head-tel svg{width:18px;height:18px;fill:var(--glacier)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:26px;height:2.5px;background:var(--marine);border-radius:2px;transition:.25s}
body.menu-open{overflow:hidden}
/* mobile menu */
.mnav{position:fixed;inset:0;z-index:99;background:linear-gradient(160deg,var(--marine),var(--anthra));transform:translateX(100%);transition:.3s;overflow-y:auto;padding:90px 22px 40px;visibility:hidden}
.mnav.open{transform:none;visibility:visible}
.mnav a{color:#fff;display:block;padding:.7em 0;font-family:var(--f-head);text-transform:uppercase;font-size:1.05rem;border-bottom:1px solid rgba(255,255,255,.12)}
.mnav .grp>span{color:var(--glacier);font-size:.8rem;letter-spacing:.14em;display:block;margin:18px 0 4px}
.mnav-close{position:absolute;top:24px;right:22px;background:none;border:0;color:#fff;font-size:2rem;cursor:pointer;line-height:1}
/* hero */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:flex-end;color:#fff;overflow:hidden;padding:120px 0 64px}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero__bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,45,82,.5) 0%,rgba(15,45,82,.62) 55%,rgba(15,45,82,.9) 100%)}
.hero .wrap{position:relative;z-index:2}
.hero h1{color:#fff;max-width:16ch}
.hero h1 em{color:var(--glacier);font-style:normal;display:block}
.hero .eyebrow{color:#cfe6f6}
.hero .eyebrow::before{background:var(--glacier)}
.hero p{max-width:56ch;font-size:1.15rem;color:#eaf1f8}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.hero__badges{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.hero__badges div{display:flex;align-items:center;gap:.5em;font-size:.92rem;color:#eaf1f8}
.hero__badges b{font-family:var(--f-head);color:var(--glacier);font-size:1.5rem;display:block;line-height:1}
.hero__badges svg{width:22px;height:22px;fill:var(--glacier);flex:0 0 auto}
/* sections */
.sec{padding:74px 0;position:relative;overflow:hidden}
.sec--soft{background:var(--mist)}
.sec--cream{background:var(--cream)}
.sec--dark{background:linear-gradient(160deg,var(--marine),var(--anthra));color:#fff}
.sec--dark h1,.sec--dark h2,.sec--dark h3{color:#fff}
.sec--dark .lead,.sec--dark p{color:#d6e2ee}
.sec--dark .eyebrow{color:var(--glacier)}
.sec__head{max-width:760px;margin:0 auto 42px;text-align:center}
.sec__head.left{margin-left:0;text-align:left}
.motif{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;background-image:repeating-linear-gradient(0deg,transparent 0 46px,rgba(79,163,217,.07) 46px 47px);}
.sec>.wrap{position:relative;z-index:1}
/* splits */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin:0 auto}
.split+.split{margin-top:60px}
.split.rev .split__media{order:2}
.split__media{position:relative;border-radius:var(--radlg);overflow:hidden;z-index:1;box-shadow:var(--shadow)}
.split__media img{width:100%;height:100%;min-height:320px;object-fit:cover}
.split__media::before{content:'';position:absolute;left:-14px;bottom:-14px;width:120px;height:120px;background:var(--glacier);opacity:.18;border-radius:12px;z-index:-1}
.split ul{list-style:none;padding:0;margin:1em 0 0}
.split ul li{padding:.35em 0 .35em 1.9em;position:relative}
.split ul li::before{content:'';position:absolute;left:0;top:.7em;width:12px;height:7px;border-left:2.5px solid var(--glacier);border-bottom:2.5px solid var(--glacier);transform:rotate(-45deg)}
/* cards */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radlg);overflow:hidden;transition:.22s;display:flex;flex-direction:column;box-shadow:var(--shadow-s)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card__img{aspect-ratio:16/11;overflow:hidden}
.card__img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .card__img img{transform:scale(1.06)}
.card__b{padding:20px 22px 24px}
.card__b h3{margin-top:0}
.card__b p{color:var(--muted);font-size:.97rem;margin-bottom:1em}
.card__b .more{font-family:var(--f-head);text-transform:uppercase;font-size:.85rem;letter-spacing:.05em;color:var(--glacier-d)}
.icard{background:#fff;border:1px solid var(--line);border-radius:var(--radlg);padding:26px 24px;box-shadow:var(--shadow-s)}
.icard .ic{width:50px;height:50px;border-radius:10px;background:var(--mist);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.icard .ic svg{width:26px;height:26px;fill:var(--glacier-d)}
.icard h3{margin:0 0 .35em}
.icard p{color:var(--muted);font-size:.96rem;margin:0}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;padding:20px 12px;border-radius:var(--radlg);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14)}
.sec:not(.sec--dark) .stat{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s)}
.stat b{font-family:var(--f-head);font-size:2.6rem;color:var(--glacier);display:block;line-height:1}
.sec:not(.sec--dark) .stat b{color:var(--marine)}
.stat span{font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;color:inherit;opacity:.85}
/* steps timeline */
.steps{counter-reset:st;display:grid;gap:20px}
.step{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--radlg);padding:20px 24px;box-shadow:var(--shadow-s)}
.step .n{counter-increment:st;width:48px;height:48px;border-radius:50%;background:var(--marine);color:#fff;font-family:var(--f-head);font-size:1.3rem;display:flex;align-items:center;justify-content:center}
.step .n::before{content:counter(st,decimal-leading-zero)}
.step h3{margin:.2em 0 .3em}
.step p{margin:0;color:var(--muted);font-size:.97rem}
/* zones */
.zones{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.zone{display:flex;align-items:center;gap:.6em;padding:.8em 1em;background:#fff;border:1px solid var(--line);border-radius:var(--rad);font-family:var(--f-head);text-transform:uppercase;font-size:.9rem;letter-spacing:.02em;color:var(--marine);transition:.18s}
.zone:hover{background:var(--marine);color:#fff;border-color:var(--marine)}
.zone svg{width:16px;height:16px;fill:var(--glacier);flex:0 0 auto}
.zone:hover svg{fill:#fff}
/* faq */
.faq{max-width:820px;margin:0 auto}
.qa{border:1px solid var(--line);border-radius:var(--rad);margin-bottom:12px;background:#fff;overflow:hidden}
.qa__q{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-family:var(--f-head);text-transform:uppercase;font-size:1.02rem;color:var(--marine);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;letter-spacing:.01em}
.qa__q .pm{flex:0 0 auto;width:20px;height:20px;position:relative}
.qa__q .pm::before,.qa__q .pm::after{content:'';position:absolute;background:var(--glacier-d);top:9px;left:2px;width:16px;height:2px;transition:.2s}
.qa__q .pm::after{transform:rotate(90deg)}
.qa.open .pm::after{transform:rotate(0)}
.qa__a{max-height:0;overflow:hidden;transition:max-height .3s}
.qa__a div{padding:0 22px 18px;color:var(--muted)}
/* before-after slider */
.ba{position:relative;max-width:100%;border-radius:var(--radlg);overflow:hidden;user-select:none;box-shadow:var(--shadow);aspect-ratio:4/3}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 50%)}
.ba__range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;z-index:5}
.ba__handle{position:absolute;top:0;bottom:0;left:50%;width:3px;background:#fff;transform:translateX(-50%);z-index:4;box-shadow:0 0 0 1px rgba(15,45,82,.2)}
.ba__handle::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:#fff;box-shadow:var(--shadow-s)}
.ba__handle::before{content:'↔';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;color:var(--marine);font-size:20px}
.ba__lab{position:absolute;bottom:14px;z-index:3;font-family:var(--f-head);text-transform:uppercase;font-size:.75rem;letter-spacing:.1em;background:rgba(15,45,82,.8);color:#fff;padding:.35em .8em;border-radius:4px}
.ba__lab.b{left:14px}.ba__lab.a{right:14px}
/* cta band */
.ctaband{background:linear-gradient(120deg,var(--marine),var(--glacier-d));color:#fff;border-radius:var(--radlg);padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.ctaband::before{content:'';position:absolute;right:-40px;top:-40px;width:220px;height:220px;border:30px solid rgba(255,255,255,.08);border-radius:50%}
.ctaband h2{color:#fff;margin:0}
.ctaband p{color:#eaf1f8;margin:.4em 0 0}
.ctaband .r{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
/* checks */
.checks{list-style:none;padding:0;margin:1em 0;display:grid;grid-template-columns:1fr 1fr;gap:10px 26px}
.checks li{position:relative;padding-left:2em}
.checks li::before{content:'';position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:50%;background:var(--mist)}
.checks li::after{content:'';position:absolute;left:6px;top:.62em;width:8px;height:5px;border-left:2px solid var(--glacier-d);border-bottom:2px solid var(--glacier-d);transform:rotate(-45deg)}
/* prose */
.prose h2{margin-top:1.4em}.prose h3{margin-top:1.3em;color:var(--anthra)}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.96rem}
.prose th,.prose td{border:1px solid var(--line);padding:.7em .9em;text-align:left}
.prose th{background:var(--marine);color:#fff;font-family:var(--f-head);text-transform:uppercase;font-size:.85rem;letter-spacing:.03em}
.prose tr:nth-child(even) td{background:var(--cream)}
/* form */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radlg);padding:30px;box-shadow:var(--shadow)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:.86rem;font-weight:600;color:var(--marine);margin:12px 0 5px}
.form input,.form select,.form textarea{width:100%;padding:.75em .85em;border:1px solid var(--line);border-radius:var(--rad);font-family:inherit;font-size:1rem;background:#fbfcfd;color:var(--ink)}
.form input:focus,.form select,.form textarea:focus{outline:2px solid var(--glacier);border-color:var(--glacier)}
.form textarea{min-height:120px;resize:vertical}
.form .consent{display:flex;gap:.7em;align-items:flex-start;margin:16px 0;font-size:.86rem;color:var(--muted)}
.form .consent input{width:auto;margin-top:.2em}
.form .hp{position:absolute;left:-9999px}
.form .ok{background:#e6f6ec;border:1px solid #9ad6ae;color:#166534;padding:14px;border-radius:var(--rad);margin-bottom:16px}
/* footer */
.foot{background:var(--anthra);color:#c7cdd6;padding:64px 0 26px;font-size:.95rem}
.foot a{color:#c7cdd6}.foot a:hover{color:var(--glacier)}
.foot__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot h4{color:#fff;font-size:1rem;letter-spacing:.08em;margin:0 0 16px}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin-bottom:.5em}
.foot__brand img{height:56px;margin-bottom:14px;background:#fff;padding:8px;border-radius:8px}
.foot__brand p{color:#9aa2ae;font-size:.9rem}
.foot__contact div{display:flex;gap:.6em;margin-bottom:.7em;align-items:flex-start}
.foot__contact svg{width:18px;height:18px;fill:var(--glacier);flex:0 0 auto;margin-top:.15em}
.foot__bottom{padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#8b93a0}
/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s,transform .6s}
.reveal.is-in{opacity:1;transform:none}
html:not(.js) .reveal{opacity:1;transform:none}
.breadcrumb{font-size:.85rem;color:var(--muted);padding:96px 0 0}
.breadcrumb a{color:var(--glacier-d)}
/* responsive */
@media(max-width:1080px){
 .nav,.head-tel span{display:none}
 .burger{display:flex}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
 body{font-size:16px}
 .split{grid-template-columns:1fr;gap:26px}
 .split.rev .split__media{order:0}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .checks{grid-template-columns:1fr}
 .ctaband{padding:32px 24px}
 .foot__top{grid-template-columns:1fr 1fr;gap:26px}
 .hero{min-height:auto;padding:120px 0 48px}
 .sec{padding:52px 0}
}
@media(max-width:560px){
 .foot__top{grid-template-columns:1fr}
 .stats{grid-template-columns:1fr 1fr}
 .head-cta .btn{display:none}
}