/* ================================================================
   pompe-a-chaleur-gruyere.ch — registre « Strates d'alpage »
   Crème lait · sapin sombre · braise — crêtes en dérive non
   harmonique, dégradé d'altitude, carte en lévitation,
   profil d'altitude en signature
================================================================ */
@font-face{font-family:'Fraunces';font-weight:100 900;font-display:swap;src:url(/fonts/fraunces-var.woff2) format('woff2')}
@font-face{font-family:'Manrope';font-weight:400;font-display:swap;src:url(/fonts/manrope-400.woff2) format('woff2')}
@font-face{font-family:'Manrope';font-weight:700;font-display:swap;src:url(/fonts/manrope-700.woff2) format('woff2')}
@font-face{font-family:'PlexMono';font-weight:600;font-display:swap;src:url(/fonts/plexmono-600.woff2) format('woff2')}

:root{
  --enc:#1e2b22;--enc2:#46574b;--mut:#5d7061;--cadre:#1f3a2e;
  --bra:#bc5619;--bra-f:#a04310;--bra-t:#98400e;--frd:#2f6485;
  --bg:#f5f1e6;--bg2:#fcfaf3;--line:#e0dbcb;--ok:#2c7a4f;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg2);color:var(--enc);font-family:'Manrope',system-ui,sans-serif;font-size:16px;line-height:1.6}
img{max-width:100%;height:auto;display:block}
a{color:var(--bra-t)}
h1,h2,h3,h4{font-optical-sizing:auto}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--enc);padding:10px 16px;z-index:200;border-radius:0 0 10px 0}
.skip:focus{left:0}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--frd);outline-offset:2px}
.wrap{width:min(1240px,100%);margin:0 auto;padding-left:26px;padding-right:26px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* ---------------- header ---------------- */
.site-head{position:sticky;top:0;z-index:80;display:flex;align-items:center;gap:20px;padding:12px 26px;background:rgba(252,250,243,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s}
.site-head.scrolle{box-shadow:0 10px 28px -18px rgba(30,43,34,.4)}
.logo{font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:20px;letter-spacing:-.005em;color:var(--enc);text-decoration:none;white-space:nowrap}
.logo-p{color:var(--bra-t)}
.nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{color:var(--enc2);text-decoration:none;font-size:14px;font-weight:700;padding:8px 11px;border-radius:999px;transition:background .18s,color .18s,transform .18s}
.nav a:hover{background:rgba(188,86,25,.09);color:var(--bra-t);transform:translateY(-1px)}
.nav a.on{color:var(--bra-t)}
.head-cta{font-weight:700;font-size:14px;color:#fff;text-decoration:none;background:var(--bra-f);padding:10px 19px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 18px -8px rgba(160,67,16,.65);transition:transform .18s,box-shadow .18s}
.head-cta:hover{transform:translateY(-2px);box-shadow:0 12px 24px -9px rgba(160,67,16,.7)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.burger span{width:24px;height:2.5px;background:var(--enc);border-radius:2px;transition:transform .25s,opacity .25s}
@media (max-width:1080px){
  .nav{position:fixed;inset:57px 0 auto 0;background:rgba(252,250,243,.98);backdrop-filter:blur(14px);flex-direction:column;padding:18px 26px 24px;gap:4px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .3s ease;margin:0}
  .nav.ouvert{transform:none}
  .nav a{font-size:16px;padding:12px 14px}
  .burger{display:flex}
  .burger.x span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .burger.x span:nth-child(2){opacity:0}
  .burger.x span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .head-cta{margin-left:auto}
}

/* ---------------- hero : les strates d'alpage ---------------- */
/* dégradé d'altitude : air froid des crêtes en haut → foyer chaud en bas */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#e9edea 0%,#f2efe3 36%,#f5f1e6 62%,#f4e6d0 100%);isolation:isolate}
.hero-max{min-height:92vh;display:flex;align-items:center}
.hero-page{padding:8px 0 20px}
/* 3 lignes de crêtes en dérive non harmonique (53 s / 37 s / 23 s) */
.strates{position:absolute;inset:-4% -8%;z-index:1;pointer-events:none;will-change:transform}
.strates .cr{position:absolute;left:0;right:0;background-repeat:repeat-x;background-position:bottom center;background-size:auto 100%;will-change:transform}
.cr-a{bottom:32%;height:34%;opacity:.9;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='240' viewBox='0 0 1200 240'%3E%3Cpath d='M0,196 L90,148 L170,178 L268,118 L352,162 L438,102 L530,150 L618,122 L706,168 L804,112 L898,156 L1002,128 L1096,172 L1200,140 L1200,240 L0,240 Z' fill='rgba(47,100,133,.055)' stroke='rgba(47,100,133,.22)' stroke-width='1.2'/%3E%3C/svg%3E");animation:deriveA 53s linear infinite alternate}
.cr-b{bottom:13%;height:42%;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1000' height='260' viewBox='0 0 1000 260'%3E%3Cpath d='M0,206 L84,170 L166,196 L262,132 L358,186 L470,110 L562,168 L662,138 L768,190 L868,148 L1000,182 L1000,260 L0,260 Z' fill='rgba(31,58,46,.06)' stroke='rgba(31,58,46,.18)' stroke-width='1.2'/%3E%3C/svg%3E");animation:deriveB 37s linear infinite alternate}
.cr-c{bottom:0;height:44%;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1400' height='300' viewBox='0 0 1400 300'%3E%3Cpath d='M0,224 L120,196 L250,230 L400,178 L540,222 L700,168 L850,214 L1010,182 L1160,228 L1300,196 L1400,216 L1400,300 L0,300 Z' fill='rgba(31,58,46,.085)' stroke='rgba(31,58,46,.24)' stroke-width='1.4'/%3E%3C/svg%3E");animation:deriveC 23s linear infinite alternate}
@keyframes deriveA{to{transform:translateX(-70px)}}
@keyframes deriveB{to{transform:translateX(52px)}}
@keyframes deriveC{to{transform:translateX(-40px)}}
/* le foyer : halos chauds qui respirent en bas, périodes non harmoniques */
.foyer{position:absolute;z-index:2;right:-4%;bottom:-8%;width:56%;height:62%;pointer-events:none;will-change:transform}
.foyer i{position:absolute;inset:0;will-change:transform,opacity}
.foyer .f1{background:radial-gradient(closest-side,rgba(188,86,25,.2),transparent 70%);animation:foyerResp 9.7s ease-in-out infinite alternate}
.foyer .f2{inset:18%;background:radial-gradient(closest-side,rgba(235,160,102,.26),transparent 70%);animation:foyerResp 6.1s ease-in-out infinite alternate-reverse}
@keyframes foyerResp{from{transform:scale(.95);opacity:.7}to{transform:scale(1.05);opacity:1}}
.voile{position:absolute;inset:0;z-index:3;background:linear-gradient(96deg,rgba(250,247,238,.94) 0%,rgba(250,247,238,.82) 26%,rgba(250,247,238,.36) 55%,rgba(250,247,238,.06) 80%);pointer-events:none}
.grain{position:absolute;inset:0;z-index:4;opacity:.1;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 .17 0 0 0 0 .18 0 0 0 0 .15 0 0 0 .5 0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E")}
/* le profil d'altitude — signature du site (Romont 700 m → Les Paccots 1'000 m) */
.altiprofil{position:absolute;left:26px;right:26px;bottom:10px;z-index:6;pointer-events:none;display:flex;justify-content:space-between;align-items:flex-end;border-bottom:1px solid rgba(31,58,46,.32);padding-bottom:7px}
.altiprofil span{display:inline-flex;align-items:baseline;gap:7px;font-family:'PlexMono';font-weight:600;font-size:10px;letter-spacing:.06em;color:var(--mut)}
.altiprofil span b{color:var(--enc2);font-weight:600}
.altiprofil span::before{content:'';border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:6px solid rgba(31,58,46,.55);transform:translateY(1px)}
.altiprofil span:nth-child(2)::before{border-bottom-width:9px}
.altiprofil span:nth-child(3)::before{border-bottom-width:12px}
.altiprofil span:nth-child(4)::before{border-bottom-width:15px;border-bottom-color:rgba(160,67,16,.6)}
@media (max-width:1080px){.altiprofil{display:none}}
.hero-grid{position:relative;z-index:7;display:grid;grid-template-columns:1.15fr 1fr;gap:52px;align-items:center;padding-top:56px;padding-bottom:64px}

/* ---------------- hero : texte ---------------- */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:'PlexMono';font-weight:600;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--frd);border:1px solid rgba(47,100,133,.42);padding:7px 15px;border-radius:999px;background:rgba(255,255,255,.72)}
.eyebrow::before{content:'';border-left:4.5px solid transparent;border-right:4.5px solid transparent;border-bottom:8px solid var(--bra)}
.hero h1{font-family:'Fraunces',Georgia,serif;font-size:clamp(33px,4.6vw,58px);letter-spacing:-.005em;line-height:1.06;margin:20px 0 14px;text-wrap:balance}
.hero-page h1{font-size:clamp(29px,3.6vw,46px)}
.hero h1 .l{display:block}
.hero h1 .thin{font-weight:300;color:var(--enc2)}
.hero h1 .fat{font-weight:800}
.hero h1 .fat b{color:var(--bra-t)}
.rv{display:inline-block;overflow:hidden;vertical-align:bottom;padding-bottom:.08em;margin-bottom:-.08em}
.rvi{display:inline-block;transform:translateY(115%);animation:rvUp .75s cubic-bezier(.2,.85,.25,1) forwards;animation-delay:calc(var(--d)*1ms)}
@keyframes rvUp{to{transform:none}}
.fini .rvi{transform:none!important;animation:none!important}
.sub{color:var(--enc2);max-width:50ch;font-size:16.5px;margin-bottom:22px}
.live{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.chip{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 18px;box-shadow:0 14px 30px -16px rgba(30,43,34,.35);transition:transform .18s,box-shadow .18s}
.chip:hover{transform:translateY(-3px);box-shadow:0 20px 38px -18px rgba(30,43,34,.4)}
.chip small{display:block;font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin-bottom:2px}
.chip b{font-family:'PlexMono';font-weight:600;font-size:19px;color:var(--enc);font-variant-numeric:tabular-nums}
.chip.a b{color:var(--bra-t)}
.chip.flash{animation:flashA 1s ease}
@keyframes flashA{0%{background-color:rgba(188,86,25,.16)}100%{background-color:#fff}}
.srcline{font-size:12px;color:var(--mut);margin-bottom:18px;max-width:52ch}
.trust{list-style:none;display:grid;gap:9px;font-size:14.5px;color:var(--enc2)}
.trust li{display:flex;gap:9px;align-items:baseline}
.trust li::before{content:'✓';font-weight:800;color:var(--ok)}
.warn{margin-top:14px;display:none;gap:9px;border:1px solid rgba(188,86,25,.5);border-left:3px solid var(--bra);background:#fdf4ea;border-radius:0 10px 10px 0;padding:10px 13px;font-size:13px;color:#7c3e10;max-width:54ch}
.warn.on{display:flex;animation:flashA 1.1s ease}
/* l'alerte vit dans la colonne texte en desktop, dans la carte en empilé */
.warn-carte{margin:0 0 12px;max-width:none}
@media (min-width:1081px){.warn-carte{display:none!important}}
@media (max-width:1080px){.warn-col{display:none!important}}

/* ---------------- la carte de devis : lévitation, ombre au sol en opposition ---------------- */
.cardwrap{position:relative;animation:levite 7.3s ease-in-out infinite alternate;will-change:transform}
@keyframes levite{from{transform:translateY(0)}to{transform:translateY(-9px)}}
/* l'ombre au sol : elle rétrécit quand la carte monte (opposition de phase) */
.cardwrap::after{content:'';position:absolute;left:7%;right:7%;bottom:-30px;height:30px;z-index:-1;background:radial-gradient(closest-side,rgba(30,43,34,.3),transparent 72%);animation:sol 7.3s ease-in-out infinite alternate}
@keyframes sol{from{transform:scale(1);opacity:.75}to{transform:scale(.9);opacity:.45}}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:0 32px 64px -28px rgba(30,43,34,.38);transition:box-shadow .25s}
.card:hover{box-shadow:0 38px 72px -30px rgba(30,43,34,.44)}
.card>*{position:relative;z-index:2}
/* filet intérieur discret */
.beam{position:absolute;inset:9px;z-index:1;border:1px solid rgba(31,58,46,.12);border-radius:10px;pointer-events:none}
.sheenbox{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none;border-radius:16px}
.sheenbox i{position:absolute;top:-12%;bottom:-12%;left:-58%;width:44%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.05) 42%,rgba(255,255,255,.5) 50%,rgba(188,86,25,.07) 58%,transparent);transform:skewX(-12deg);animation:sheen 7s ease-in-out infinite;will-change:transform}
@keyframes sheen{0%,52%{transform:translateX(0) skewX(-12deg)}88%,100%{transform:translateX(420%) skewX(-12deg)}}
.card h3{font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:20px;letter-spacing:-.005em;margin-bottom:2px}
.mini{font-family:'PlexMono';font-weight:600;font-size:13px;color:var(--bra-t);margin-bottom:16px;min-height:18px;font-variant-numeric:tabular-nums}
.fld{margin-bottom:13px}
.h-t{display:flex;justify-content:space-between;align-items:baseline;font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--enc2);margin-bottom:8px}
.h-t output{font-family:'PlexMono';font-weight:600;font-size:15px;color:var(--bra-t)}
input[type=range]{width:100%;appearance:none;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--bra) var(--fill,40%),#e4ded0 var(--fill,40%));cursor:pointer}
input[type=range]::-webkit-slider-thumb{appearance:none;width:21px;height:21px;border-radius:50%;background:#fff;border:3px solid var(--bra);box-shadow:0 3px 8px rgba(30,43,34,.3);transition:transform .15s,box-shadow .3s}
input[type=range]:active::-webkit-slider-thumb,input[type=range]:focus::-webkit-slider-thumb{box-shadow:0 3px 8px rgba(30,43,34,.3),0 0 0 7px rgba(188,86,25,.16)}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.12)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--bra);box-shadow:0 3px 8px rgba(30,43,34,.3)}
.puces{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.puces button{font-family:'Manrope';font-size:12.5px;font-weight:700;color:var(--enc2);background:#fff;border:1px solid #cfcaba;border-radius:9px;padding:9px 4px;cursor:pointer;transition:all .18s;min-width:0}
.puces button:hover{transform:translateY(-2px);border-color:#b0ab99;box-shadow:0 6px 14px -6px rgba(30,43,34,.25)}
.puces button.on{background:rgba(188,86,25,.11);border-color:var(--bra-f);color:var(--bra-t);box-shadow:inset 0 0 0 1px var(--bra-f);animation:pop .28s cubic-bezier(.2,1.6,.4,1)}
@keyframes pop{0%{transform:scale(.94)}100%{transform:scale(1)}}
.sep{display:flex;align-items:center;gap:10px;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin:16px 0 12px}
.sep::before,.sep::after{content:'';flex:1;height:1px;background:#e2dccc}
.idgrid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:10px}
.idgrid .full{grid-column:1/-1}
.idgrid>*{min-width:0}
.h-in{width:100%;font-family:'Manrope';font-size:14.5px;color:var(--enc);background:#fff;border:1px solid #cfcaba;border-radius:9px;padding:12px 14px;transition:border-color .18s,box-shadow .18s,background .18s}
.h-in:hover{border-color:#b0ab99}
.h-in:focus{border-color:var(--frd);background:#fff;box-shadow:0 0 0 3px rgba(47,100,133,.15);outline:none}
.h-in::placeholder{color:#9aa294}
textarea.h-in{resize:none;min-height:58px;line-height:1.5}
.hpot{position:absolute;left:-9999px;opacity:0}
.cta{display:block;width:100%;text-align:center;font-family:'Manrope';font-weight:700;font-size:16px;color:#fff;background:var(--bra-f);border:none;border-radius:999px;padding:15px 22px;cursor:pointer;text-decoration:none;box-shadow:0 14px 26px -10px rgba(160,67,16,.65);transition:transform .18s,box-shadow .18s,background .18s}
.cta:hover{transform:translateY(-2px);box-shadow:0 18px 32px -11px rgba(160,67,16,.72);background:#8d3a0c}
.cta .fl{display:inline-block;transition:transform .18s}
.cta:hover .fl{transform:translateX(4px)}
.cta[disabled]{opacity:.6;cursor:wait;transform:none}
.alt{text-align:center;font-size:13px;color:var(--enc2);margin-top:11px}
.alt a{color:var(--bra-t);text-decoration:none;font-weight:700}
.lpd{font-size:11px;color:var(--mut);text-align:center;margin-top:8px}
.lpd a{color:var(--mut)}
.ok-msg{margin-top:12px;text-align:center;font-weight:700;color:var(--ok);background:rgba(44,122,79,.1);border:1px solid rgba(44,122,79,.35);border-radius:9px;padding:11px}
.card-in{opacity:0;transform:translateY(30px) scale(.985)}
.go .card-in{animation:cardIn .9s cubic-bezier(.16,1.3,.3,1) forwards;animation-delay:.5s}
@keyframes cardIn{to{opacity:1;transform:none}}
.fini .card-in{opacity:1!important;transform:none!important;animation:none!important}

/* ---------------- sections ---------------- */
.sec{padding:64px 0}
.sec-tinte{background:var(--bg);position:relative}
/* strates fines : la trame du registre (lignes d'altitude horizontales) */
.sec-tinte::before{content:'';position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(180deg,rgba(31,58,46,.05) 0 1px,transparent 1px 28px)}
.sec-tinte>.wrap{position:relative;z-index:1}
.sec h2{font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:clamp(24px,2.9vw,36px);letter-spacing:-.005em;line-height:1.14;margin-bottom:14px;text-wrap:balance}
.lead{color:var(--enc2);max-width:68ch;margin-bottom:26px;font-size:16.5px}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:8px}
.cols2>*{min-width:0}
.cols2 p{color:var(--enc2)}
.cols2 strong,.lead strong{color:var(--enc)}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:26px 0}
.col-etape{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 16px 34px -20px rgba(30,43,34,.3);transition:transform .18s,box-shadow .18s}
.col-etape:hover{transform:translateY(-3px);box-shadow:0 24px 44px -22px rgba(30,43,34,.36)}
.col-etape b{font-family:'PlexMono';font-weight:600;color:var(--bra-t);font-size:14px}
.col-etape h3{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:18.5px;margin:6px 0 8px}
.col-etape p{color:var(--enc2);font-size:14.5px}
.bande{background:var(--cadre);position:relative;overflow:hidden}
.bande::after{content:'';position:absolute;inset:0;opacity:.13;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1000' height='260' viewBox='0 0 1000 260'%3E%3Cpath d='M0,206 L84,170 L166,196 L262,132 L358,186 L470,110 L562,168 L662,138 L768,190 L868,148 L1000,182' fill='none' stroke='%23ffffff' stroke-opacity='.55' stroke-width='1.3'/%3E%3Cpath d='M0,236 L120,208 L250,238 L400,190 L540,230 L700,180 L850,222 L1000,196' fill='none' stroke='%23ffffff' stroke-opacity='.35' stroke-width='1.3'/%3E%3C/svg%3E");background-size:1000px 260px;background-position:bottom center;background-repeat:repeat-x}
.bande-in{position:relative;z-index:1;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px;color:#ece5d4;font-weight:700;font-size:14px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center;box-shadow:0 16px 34px -20px rgba(30,43,34,.28)}
.stat b{display:block;font-family:'PlexMono';font-weight:600;font-size:27px;color:var(--bra-t);font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:var(--mut)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.steps-v{grid-template-columns:1fr;max-width:760px}
.step{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:0 14px 30px -20px rgba(30,43,34,.26);transition:transform .18s}
.step:hover{transform:translateY(-3px)}
.step b{flex:none;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--bra-f);color:#fff;font-family:'PlexMono';font-weight:600;font-size:14px}
.step span{font-size:14.5px;color:var(--enc2)}
.step strong{color:var(--enc)}
.encart{border:1px solid rgba(188,86,25,.45);border-left:4px solid var(--bra);background:#fdf4ea;border-radius:0 12px 12px 0;padding:16px 20px;margin-top:26px}
.encart p{color:#6d4318;font-size:14.5px}
.encart a{font-weight:700}

/* prestations (accueil) */
.prestas{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.presta{position:relative;display:block;border-radius:16px;overflow:hidden;text-decoration:none;box-shadow:0 22px 44px -22px rgba(30,43,34,.42);transition:transform .22s,box-shadow .22s;isolation:isolate}
.presta:hover{transform:translateY(-4px);box-shadow:0 30px 56px -24px rgba(30,43,34,.5)}
.presta img{width:100%;height:230px;object-fit:cover;transition:transform .5s ease}
.presta:hover img{transform:scale(1.05)}
.presta-txt{position:absolute;inset:auto 0 0 0;padding:44px 18px 16px;background:linear-gradient(180deg,transparent,rgba(18,28,22,.92) 55%);color:#fff}
.presta-txt b{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:18.5px;display:block}
.presta-txt span{display:block;font-size:13px;color:#cfdacc;margin:3px 0 8px}
.presta-txt i{font-style:normal;font-size:13px;font-weight:700;color:#efa262}

/* rangée image+texte (pages services) */
.row-img{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:center;margin-top:10px}
.row-img>*{min-width:0}
.row-img img{border-radius:16px;box-shadow:0 26px 50px -26px rgba(30,43,34,.45);width:100%;height:100%;max-height:330px;object-fit:cover}
.row-img p{color:var(--enc2);margin-bottom:12px}
.row-img strong{color:var(--enc)}

/* tableaux & postes */
.table-scroll{overflow-x:auto;margin-top:10px}
.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 18px 38px -22px rgba(30,43,34,.32);min-width:560px}
.tbl th{background:var(--cadre);color:#f0ead9;text-align:left;font-size:13px;letter-spacing:.05em;padding:13px 16px}
.tbl td{padding:13px 16px;border-top:1px solid var(--line);color:var(--enc2);font-size:14.5px}
.tbl td:last-child{font-family:'PlexMono';font-weight:600;color:var(--enc);white-space:nowrap;font-variant-numeric:tabular-nums}
.postes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:8px}
.poste{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.poste b{font-family:'PlexMono';font-weight:600;color:var(--bra-t);font-size:17px;white-space:nowrap}
.poste span{font-size:13.5px;color:var(--enc2)}

/* fiche commune */
.fiche{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.fiche div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.fiche small{display:block;font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--mut)}
.fiche b{font-size:15px}
.communes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:8px}
.communes-grid a{display:flex;justify-content:space-between;align-items:baseline;gap:8px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 14px;text-decoration:none;color:var(--enc);font-weight:700;font-size:14px;transition:transform .16s,border-color .16s,box-shadow .16s}
.communes-grid a:hover{transform:translateY(-2px);border-color:var(--bra-f);box-shadow:0 10px 22px -12px rgba(30,43,34,.35)}
.communes-grid small{font-family:'PlexMono';font-weight:600;font-size:10.5px;color:var(--mut)}

/* FAQ */
.sec-faq{background:var(--bg)}
.faq-list{max-width:820px;margin-top:22px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;transition:box-shadow .2s}
.faq-item[open]{box-shadow:0 18px 38px -22px rgba(30,43,34,.32)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 46px 16px 18px;font-weight:700;font-size:15.5px;position:relative;transition:color .18s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:18px;top:50%;transform:translateY(-50%);font-family:'Fraunces',Georgia,serif;font-weight:300;font-size:24px;color:var(--bra-t);transition:transform .25s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item summary:hover{color:var(--bra-t)}
.faq-a{padding:0 18px 16px;color:var(--enc2);font-size:14.5px}

/* blog */
.arts{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:24px}
.art-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;box-shadow:0 14px 30px -20px rgba(30,43,34,.26);transition:transform .18s,box-shadow .18s}
.art-card:hover{transform:translateY(-3px);box-shadow:0 24px 44px -22px rgba(30,43,34,.34)}
.art-card b{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:18.5px;color:var(--enc);display:block;margin-bottom:8px}
.art-card p{color:var(--enc2);font-size:14px;margin-bottom:10px}
.art-card i{font-style:normal;font-weight:700;font-size:13.5px;color:var(--bra-t)}
.article .wrap-art{max-width:780px}
.article h1{font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:clamp(28px,3.4vw,40px);letter-spacing:-.005em;margin-bottom:18px;text-wrap:balance}
.article h2{font-family:'Fraunces',Georgia,serif;font-weight:700;font-size:clamp(20px,2.3vw,26px);margin:30px 0 10px}
.article p{color:var(--enc2);margin-bottom:14px}
.article strong{color:var(--enc)}
.art-retour{margin-top:26px;font-weight:700}
.article .art-note{font-size:13.5px;color:var(--mut);border-left:3px solid var(--line);padding:10px 14px;background:#fff;border-radius:0 10px 10px 0;margin-bottom:18px}

/* CTA final */
.sec-cta{background:linear-gradient(160deg,#24422f,#16291f);position:relative;overflow:hidden}
.sec-cta::before{content:'';position:absolute;width:40vw;height:40vw;right:-10%;top:-38%;border-radius:50%;background:radial-gradient(closest-side,rgba(188,86,25,.32),transparent 70%);animation:foyerResp 9.7s ease-in-out infinite alternate}
.sec-cta::after{content:'';position:absolute;inset:0;opacity:.15;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1000' height='260' viewBox='0 0 1000 260'%3E%3Cpath d='M0,206 L84,170 L166,196 L262,132 L358,186 L470,110 L562,168 L662,138 L768,190 L868,148 L1000,182' fill='none' stroke='%23ffffff' stroke-opacity='.55' stroke-width='1.3'/%3E%3Cpath d='M0,236 L120,208 L250,238 L400,190 L540,230 L700,180 L850,222 L1000,196' fill='none' stroke='%23ffffff' stroke-opacity='.35' stroke-width='1.3'/%3E%3C/svg%3E");background-size:1000px 260px;background-position:bottom center;background-repeat:repeat-x}
.cta-fin{position:relative;z-index:1;text-align:center;padding-top:12px;padding-bottom:12px}
.cta-fin h2{color:#f5f0e2;font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:clamp(24px,3vw,36px);margin-bottom:10px}
.cta-fin p{color:#c2cfc0;max-width:56ch;margin:0 auto 22px}
.cta-lien{display:inline-block;width:auto}
.cta-fin .cta{box-shadow:0 16px 32px -12px rgba(0,0,0,.5)}
.cta-fin .cta:hover{box-shadow:0 20px 38px -13px rgba(0,0,0,.55)}
.cta-fin .alt{color:#9fb3a0}
.cta-fin .alt a{color:#efa262}

/* footer */
.site-foot{background:#132218;color:#b7c5b6}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1.4fr;gap:36px;padding-top:48px;padding-bottom:30px}
.site-foot .logo{color:#f0ead9;font-size:21px}
.foot-txt{font-size:13.5px;margin-top:10px;color:#8da28c}
.foot-txt a{color:#dcc5a9;text-decoration:none}
.site-foot h4{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:#7d917c;margin-bottom:12px}
.foot-nav{display:grid;gap:7px}
.foot-nav a{color:#b7c5b6;text-decoration:none;font-size:13.5px;transition:color .15s}
.foot-nav a:hover{color:#efa262}
.foot-nav-com{grid-template-columns:repeat(2,1fr)}
.foot-legal{border-top:1px solid #1e3526;padding-top:16px;padding-bottom:22px;font-size:12px;color:#8a9c89}
.foot-legal a{color:#a2b3a1}

/* sticky CTA mobile */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(252,250,243,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform .3s ease;display:none}
.sticky-cta .cta{width:100%;box-shadow:0 6px 16px -8px rgba(160,67,16,.6)}
.sticky-cta.vu{transform:none}
@media (max-width:760px){.sticky-cta{display:block}}

/* ---------------- popup « Partez avec votre chiffre » ---------------- */
.pum{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(18,28,22,.5);backdrop-filter:blur(5px);opacity:0;transition:opacity .3s ease}
.pum.vu{opacity:1}
.pum-card{position:relative;width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 30px 70px -20px rgba(18,28,22,.55);transform:translateY(18px) scale(.97);transition:transform .35s cubic-bezier(.2,1.1,.3,1)}
.pum.vu .pum-card{transform:none}
.pum-x{position:absolute;top:10px;right:10px;width:36px;height:36px;border:none;background:none;cursor:pointer;font-size:22px;line-height:1;color:var(--mut);border-radius:50%;transition:background .15s,color .15s}
.pum-x:hover{background:rgba(30,43,34,.07);color:var(--enc)}
.pum-eti{font-family:'PlexMono';font-weight:600;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--frd);margin-bottom:8px}
.pum-card h3{font-family:'Fraunces',Georgia,serif;font-weight:800;font-size:22px;line-height:1.15;margin-bottom:6px}
.pum-chiffre{font-family:'PlexMono';font-weight:600;font-size:15px;color:var(--bra-t);background:rgba(188,86,25,.1);border:1px solid rgba(188,86,25,.35);border-radius:10px;padding:9px 13px;margin:10px 0 6px;font-variant-numeric:tabular-nums}
.pum-base{font-size:11.5px;color:var(--mut);margin:2px 0 8px}
.pum-base b{color:var(--enc2);font-weight:700}
.pum-p{font-size:13.5px;color:var(--enc2);margin-bottom:14px}
.pum-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:11px}
.pum-grid>*{min-width:0}
.pum-full{grid-column:1/-1}
.pum-grid textarea{resize:none;min-height:52px;line-height:1.45}
.pum-card .lpd{margin-top:9px}
.pum-ok{text-align:center;padding:16px 0 6px;font-weight:700;color:var(--ok)}
@media (max-width:600px){
  .pum{align-items:flex-end;padding:0}
  .pum-card{width:100%;border-radius:16px 16px 0 0;border-bottom:none;padding-bottom:calc(24px + env(safe-area-inset-bottom));transform:translateY(100%)}
}
@media (prefers-reduced-motion:reduce){.pum,.pum-card{transition:none!important}}

/* reveal (classe posée par JS uniquement) */
.js-rev [data-rev]{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.js-rev [data-rev].vu{opacity:1;transform:none}

/* ---------------- responsive ---------------- */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-max{min-height:0}
  .foyer{right:-12%;width:80%;top:auto;bottom:0;height:56%}
  /* en empilé, pas de résultat AVANT l'outil : les chips et la ligne source disparaissent,
     le résultat vit dans la carte (ligne ≈ kW · CHF) */
  .hero .live,.hero .srcline{display:none}
  .prestas{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .wrap{padding-left:18px;padding-right:18px}
  .sec{padding:46px 0}
  .hero-grid{padding-top:36px;padding-bottom:40px}
  .cardwrap::after{left:10%;right:10%;bottom:-22px;height:22px}
  .cols2,.cols3,.postes,.arts,.row-img{grid-template-columns:1fr}
  .row-img img{max-height:240px}
  .prestas{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .fiche{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .bande-in{justify-content:flex-start;gap:8px 18px;font-size:13px}
}