/* =========================================================
   DS Réno+ — feuille de style
   Couleurs : anthracite #1C1F23, orange logo #F07A2A,
   orange texte/bouton #B4500E, fond pierre #F5F3F0
   ========================================================= */
:root{
  --ink:#1C1F23; --ink-2:#15171A; --ink-3:#23272C;
  --text:#4A4F56; --muted:#6A6F76; --line:#D3CCC2; --line-dark:#3A3F46;
  --stone:#F5F3F0; --white:#FFFFFF;
  --orange:#F07A2A; --orange-text:#B4500E; --orange-dark:#8A3C09;
  --serif:'Playfair Display', Georgia, 'Times New Roman', serif;
  --sans:'Jost', 'Helvetica Neue', Arial, sans-serif;
  --wrap:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--orange-text)}a:hover{color:var(--orange-dark)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;margin:0;text-wrap:balance}
p{margin:0}
.eyebrow{font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--orange-text);font-weight:500}
.eyebrow--light{color:var(--orange)}
.section{padding-block:104px}
.section--stone{background:var(--stone)}
.section--dark{background:var(--ink);color:var(--white)}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:56px}
.section-head__text{display:flex;flex-direction:column;gap:16px;max-width:700px}
.h2{font-size:clamp(32px,4vw,46px)}
.lead{color:var(--text)}
.section--dark .lead{color:#D9DBDE}
.link-line{color:var(--ink);text-decoration:none;border-bottom:2px solid var(--orange);padding-bottom:4px;font-weight:500}
.link-line:hover{color:var(--orange-text)}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:17px 30px;font-family:var(--sans);font-size:16px;font-weight:500;letter-spacing:.03em;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s;min-height:48px}
.btn--primary{background:var(--orange-text);color:var(--white)}
.btn--primary:hover{background:var(--orange-dark);color:var(--white)}
.btn--ghost{border-color:#5A5F66;color:var(--white);background:transparent}
.btn--ghost:hover{border-color:var(--white);color:var(--white)}
.btn--dark{background:var(--ink);color:var(--white)}
.btn--dark:hover{background:#000;color:var(--white)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:var(--white);transition:box-shadow .25s}
.topbar{background:var(--ink-2);color:#C9CCD1;font-size:13px;letter-spacing:.04em;overflow:hidden;max-height:60px;transition:max-height .25s,opacity .25s}
.topbar .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 24px;padding-block:9px}
.topbar strong{color:var(--orange);font-weight:500}
.mainbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:16px;transition:padding .25s}
.logo img{height:60px;width:auto;transition:height .25s}
.nav{display:flex;align-items:center;gap:30px;font-size:15px;font-weight:500;letter-spacing:.03em}
.nav a{color:var(--ink);text-decoration:none}
.nav a:hover,.nav a[aria-current="page"]{color:var(--orange-text)}
.nav .btn{padding:12px 22px;color:var(--white)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);width:48px;height:48px;align-items:center;justify-content:center;cursor:pointer}
.site-header.is-compact{box-shadow:0 6px 24px rgba(28,31,35,.10)}
.site-header.is-compact .topbar{max-height:0;opacity:0}
.site-header.is-compact .mainbar .wrap{padding-block:8px}
.site-header.is-compact .logo img{height:40px}
@media (max-width:1060px){
  .menu-toggle{display:inline-flex}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--white);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;border-top:1px solid var(--line);box-shadow:0 18px 30px rgba(28,31,35,.12);display:none}
  .nav.is-open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid #EEE9E3}
  .nav .btn{margin-top:14px;border-bottom:0}
  .topbar .hide-mobile{display:none}
  .logo img{height:48px}
}

/* Accueil */
.hero{background:var(--ink);color:var(--white)}
.hero__grid{display:flex;flex-wrap:wrap;gap:48px 64px;align-items:center;padding-top:88px}
.hero__text{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:28px}
.hero__kicker{display:flex;align-items:center;gap:14px;font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:#C9CCD1}
.hero__kicker::before{content:"";width:44px;height:2px;background:var(--orange)}
.hero h1{font-size:clamp(40px,5.4vw,64px);line-height:1.05;letter-spacing:-.015em}
.hero__lead{font-size:20px;font-weight:300;color:#D9DBDE;max-width:32em}
.hero__visual{flex:1 1 420px;min-width:0;margin:0;display:flex;flex-direction:column;gap:10px}
.hero__visual figcaption{font-size:13px;color:#8D9298;letter-spacing:.04em}
.stats{display:flex;flex-wrap:wrap;border-top:1px solid var(--line-dark);margin-top:64px;padding-bottom:72px}
.stat{flex:1 1 220px;padding:28px 24px 0 0;display:flex;flex-direction:column;gap:4px}
.stat b{font-family:var(--serif);font-weight:600;font-size:40px;line-height:1;color:var(--orange)}
.stat span{font-size:15px;color:#C9CCD1}

/* Page de service : bandeau */
.page-hero{background:var(--ink);color:var(--white);padding-block:88px 80px}
.page-hero .wrap{display:flex;flex-direction:column;gap:24px;max-width:var(--wrap)}
.page-hero h1{font-size:clamp(36px,4.6vw,56px);max-width:16em}
.page-hero p{font-size:19px;font-weight:300;color:#D9DBDE;max-width:40em}
.breadcrumb{font-size:13px;color:#8D9298;letter-spacing:.04em}
.breadcrumb a{color:#C9CCD1;text-decoration:none}

/* Cartes projets */
.cards{display:flex;flex-wrap:wrap;gap:24px}
.card{flex:1 1 320px;min-width:0;border:1px solid #E4DFD8;padding:40px 36px;display:flex;flex-direction:column;gap:18px;background:var(--white);text-decoration:none;color:inherit;transition:border-color .2s,transform .2s}
a.card:hover{border-color:var(--orange);transform:translateY(-2px);color:inherit}
.card__tag{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.card h3{font-size:28px}
.card p{color:var(--text)}
.card__more{margin-top:auto;font-weight:500;color:var(--orange-text)}

/* Liste de prestations */
.split{display:flex;flex-wrap:wrap;gap:56px 72px}
.split__aside{flex:1 1 340px;min-width:0;display:flex;flex-direction:column;gap:18px}
.split__main{flex:1 1 560px;min-width:0}
.svc-list{margin:0;padding:0;list-style:none}
.svc-list li{display:flex;flex-wrap:wrap;gap:6px 32px;padding:24px 0;border-top:1px solid var(--line)}
.svc-list li:last-child{border-bottom:1px solid var(--line)}
.svc-list h3{flex:0 0 230px;font-size:22px}
.svc-list p{flex:1 1 260px;color:var(--text)}

/* Encadré énergie */
.energy{background:var(--ink);color:var(--white);padding:64px 56px;display:flex;flex-wrap:wrap;gap:48px 64px}
.energy__text{flex:1 1 380px;min-width:0;display:flex;flex-direction:column;gap:18px}
.energy__text p{color:#D9DBDE}
.energy__list{flex:1 1 420px;min-width:0;list-style:none;margin:0;padding:0}
.energy__list li{display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line-dark)}
.energy__list li:last-child{border-bottom:1px solid var(--line-dark)}
.energy__list svg{flex:0 0 auto}
.energy__list strong{display:block;font-size:18px;font-weight:500}
.energy__list span{color:#C9CCD1;font-size:15px}
@media (max-width:600px){.energy{padding:40px 24px}}

/* Étapes */
.steps{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:32px}
.steps li{flex:1 1 190px;min-width:0;display:flex;flex-direction:column;gap:10px;border-top:2px solid var(--ink);padding-top:24px}
.steps .num{font-size:13px;letter-spacing:.2em;color:var(--orange-text);font-weight:500}
.steps strong{font-family:var(--serif);font-size:22px;font-weight:600}
.steps span:last-child{color:var(--text);font-size:15px}

/* Avis */
.reviews{display:flex;flex-wrap:wrap;gap:32px}
.review{flex:1 1 320px;min-width:0;margin:0;border-top:1px solid var(--line-dark);padding-top:28px;display:flex;flex-direction:column;gap:18px}
.review::before{content:"\201C";font-family:var(--serif);font-size:56px;line-height:.6;color:var(--orange)}
.review blockquote{margin:0;font-family:var(--serif);font-size:20px;line-height:1.55;font-style:italic}
.review figcaption{font-size:14px;color:#B9BCC1;letter-spacing:.04em}

/* FAQ */
.faq{max-width:880px}
.faq details{border-top:1px solid var(--line);padding:22px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-family:var(--serif);font-size:21px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:24px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--sans);font-weight:300;font-size:28px;line-height:1;color:var(--orange-text)}
.faq details[open] summary::after{content:"–"}
.faq details p{margin-top:12px;color:var(--text)}

/* Zone */
.towns{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
.towns li{border:1px solid var(--line);padding:6px 14px;font-size:15px;background:var(--white)}

/* Contact */
.contact{display:flex;flex-wrap:wrap;gap:56px 72px}
.contact__info{flex:1 1 380px;min-width:0;display:flex;flex-direction:column;gap:26px}
.contact__items{display:flex;flex-direction:column;gap:22px;border-top:1px solid var(--line);padding-top:26px}
.contact__items small{display:block;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.contact__phone{font-family:var(--serif);font-size:32px;line-height:1.2;color:var(--ink);text-decoration:none}
.form{flex:1 1 500px;min-width:0;background:var(--white);padding:44px;display:flex;flex-direction:column;gap:20px;box-shadow:0 24px 60px rgba(28,31,35,.08)}
.form h3{font-size:26px}
.form__row{display:flex;flex-wrap:wrap;gap:20px}
.form label{flex:1 1 200px;display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:500;letter-spacing:.04em}
.form input,.form select,.form textarea{font:inherit;font-size:16px;font-weight:400;letter-spacing:0;padding:14px;border:1px solid #C9C3BA;background:var(--white);color:var(--ink);border-radius:0;width:100%}
.form textarea{resize:vertical}
.form .consent{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400;letter-spacing:0;font-size:14px;color:var(--text)}
.form .consent input{width:auto;margin-top:4px}
.form__note{font-size:13px;color:var(--muted)}
.hidden-field{position:absolute;left:-9999px}
@media (max-width:600px){.form{padding:28px 20px}}

/* Bandeau d'appel */
.cta-band{background:var(--orange-text);color:var(--white)}
.cta-band .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding-block:56px}
.cta-band h2{font-size:clamp(28px,3.4vw,38px)}
.cta-band .btn--dark{background:var(--ink)}

/* Texte courant (mentions, merci) */
.prose{max-width:780px;display:flex;flex-direction:column;gap:16px}
.prose h2{font-size:26px;margin-top:24px}
.prose p,.prose li{color:var(--text)}

/* Pied de page */
.site-footer{background:var(--ink-2);color:#B9BCC1;font-size:14px}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px;padding-block:64px 40px}
.footer-grid > div{flex:1 1 220px;min-width:0;display:flex;flex-direction:column;gap:10px}
.footer-grid h3{font-family:var(--sans);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--white);font-weight:500}
.footer-grid a{color:#C9CCD1;text-decoration:none}
.footer-grid a:hover{color:var(--orange)}
.footer-bottom{border-top:1px solid #2B2F35;padding-block:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.footer-bottom a{color:#C9CCD1}

/* Bouton d'appel flottant (mobile) */
.call-fab{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:max(16px,env(safe-area-inset-bottom,0px));z-index:60;display:none;align-items:center;gap:10px;background:var(--orange-text);color:var(--white);text-decoration:none;padding:14px 20px;font-weight:500;box-shadow:0 10px 30px rgba(0,0,0,.25)}
@media (max-width:760px){.call-fab{display:inline-flex}.section{padding-block:72px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Articles « Conseils » */
.article-meta{font-size:15px;color:#B9BCC1}
.summary{background:var(--stone);border-left:3px solid var(--orange);padding:24px 28px;display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.prose .summary strong{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--orange-text);font-weight:500}
.summary p{color:var(--ink)}
.prose ul,.prose ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px}
.prose strong{color:var(--ink);font-weight:500}