/* Thermo Clim Solutions — feuille de style principale
   Palette "chalet" : anthracite, crème, noyer et laiton. */
:root{
  --ink:#1c1a17; --ink-2:#3a3531; --muted:#6f675f;
  --bg:#f5f0e8; --surface:#fffdf9; --line:#e2d9cc;
  --wood:#5b3a29; --wood-2:#7a5238; --brass:#b08d55; --brass-2:#8f6f3d;
  --pine:#2f3e34; --ok:#2f6b3f; --err:#9b2c2c; --warn:#8a5a00;
  --radius:14px; --shadow:0 10px 30px rgba(28,26,23,.08);
  --font-h:"Iowan Old Style","Palatino Linotype","Book Antiqua",Palatino,Georgia,serif;
  --font-b:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font-b);font-size:17px;line-height:1.6;color:var(--ink);background:var(--bg);overflow-x:hidden}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--wood-2)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--font-h);line-height:1.15;margin:0 0 .5em;color:var(--ink);font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3.2rem)}
h2{font-size:clamp(1.6rem,3vw,2.3rem)}
h3{font-size:1.3rem}
p{margin:0 0 1em}
.eyebrow{font-family:var(--font-b);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;color:var(--brass-2);font-weight:600;margin-bottom:.8em}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;z-index:200}
.skip:focus{left:8px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.85em 1.4em;border-radius:999px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;font-family:var(--font-b);transition:transform .15s,background .15s,color .15s;line-height:1.2}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--brass);color:var(--ink);border-color:var(--brass)}
.btn-primary:hover{background:var(--brass-2);color:#fff}
.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-dark:hover{background:var(--ink-2)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light-outline{background:transparent;color:#fff;border-color:#fff}
.btn-light-outline:hover{background:#fff;color:var(--ink)}
.btn svg{width:1.1em;height:1.1em}

/* En-tête */
.topbar{background:var(--ink);color:#e9e2d6;font-size:.88rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-block:6px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}
header.site{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:12px;position:relative}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand-mark{width:44px;height:44px;border-radius:12px;background:var(--ink);display:grid;place-items:center;flex:none}
.brand-mark svg{width:26px;height:26px}
.brand-name{font-family:var(--font-h);font-size:1.25rem;font-weight:600;line-height:1.05}
.brand-name small{display:block;font-family:var(--font-b);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-2)}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
nav.main a{text-decoration:none;color:var(--ink-2);padding:.5em .7em;border-radius:8px;font-weight:500;font-size:.95rem;white-space:nowrap}
nav.main a:hover,nav.main a[aria-current="page"]{background:var(--bg);color:var(--ink)}
nav.main .btn{margin-left:8px;color:var(--ink)}
.nav-toggle{display:none;background:none;border:2px solid var(--ink);border-radius:10px;padding:8px 10px;cursor:pointer;color:var(--ink);font:inherit}
@media (max-width:960px){
  .nav-toggle{display:inline-flex;align-items:center;gap:8px;font-weight:600}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;align-items:stretch;padding:12px 20px 18px}
  nav.main a{display:block;padding:.8em .6em}
  nav.main .btn{margin:8px 0 0;justify-content:center}
  .topbar .hide-m{display:none}
}

/* Hero */
.hero{background:linear-gradient(180deg,var(--ink) 0%,#2a2521 100%);color:#efe8dc;position:relative}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding-block:72px}
.hero h1{color:#fff}
.hero .lead{font-size:1.15rem;color:#d9d0c2;max-width:52ch}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}
.hero .eyebrow{color:var(--brass)}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;padding:0;margin:0;font-size:.93rem;color:#e0d8ca}
.trust li{display:flex;align-items:center;gap:8px}
.trust svg{width:18px;height:18px;color:var(--brass);flex:none}
.photo-slot{border:2px dashed rgba(255,255,255,.35);border-radius:var(--radius);aspect-ratio:4/3;display:grid;place-items:center;text-align:center;padding:24px;color:#cfc5b4;background:rgba(255,255,255,.04);font-size:.95rem;max-width:100%}
.photo-slot.light{border-color:#cfc5b6;background:#fff;color:var(--muted)}
.photo-slot strong{display:block;color:inherit;font-family:var(--font-h);font-size:1.1rem;margin-bottom:6px}
.photo-slot img{border-radius:var(--radius);object-fit:cover;width:100%;height:100%}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr;padding-block:48px}.hero .photo-slot{aspect-ratio:16/10}}

/* Sections */
section.block{padding-block:72px}
section.block.tight{padding-block:48px}
section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
section.dark{background:var(--pine);color:#e6e9e4}
section.dark h2,section.dark h3{color:#fff}
section.dark .eyebrow{color:#c9b58a}
.section-head{max-width:64ch;margin-bottom:36px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px}
.card .icon{width:46px;height:46px;border-radius:12px;background:var(--bg);display:grid;place-items:center;color:var(--wood-2);margin-bottom:8px}
.card .icon svg{width:24px;height:24px}
.card h3{margin-bottom:.2em}
.card p{color:var(--ink-2);margin:0}
.card .more{margin-top:auto;padding-top:10px;font-weight:600;text-decoration:none;color:var(--wood-2)}
.card .more:hover{text-decoration:underline}
a.card{text-decoration:none;color:inherit;transition:transform .15s}
a.card:hover{transform:translateY(-3px)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
@media (max-width:820px){.split{grid-template-columns:1fr;gap:28px}}
.checks{list-style:none;padding:0;margin:0 0 1.2em;display:grid;gap:10px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks svg{width:22px;height:22px;flex:none;color:var(--brass-2);margin-top:3px}
section.dark .checks svg{color:var(--brass)}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:s}
.steps li{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:22px;counter-increment:s}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--font-h);font-size:2rem;color:var(--brass);display:block;margin-bottom:8px}
.steps h3{font-size:1.1rem}
.steps p{font-size:.95rem;margin:0;color:#d6dbd4}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* Avis */
.review{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:10px}
.stars{color:var(--brass);letter-spacing:2px;font-size:1rem}
.review blockquote{margin:0;font-style:italic;color:var(--ink-2)}
.review footer{font-size:.9rem;color:var(--muted)}
.review footer strong{color:var(--ink)}

/* FAQ */
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 20px;margin-bottom:10px}
details.faq summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:1.4rem;color:var(--brass-2);flex:none}
details.faq[open] summary::after{content:"–"}
details.faq .a{padding:0 0 18px;color:var(--ink-2)}

/* Zone */
.pills{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.pills li{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:.35em .9em;font-size:.93rem}

/* CTA final */
.cta-final{background:linear-gradient(135deg,var(--wood) 0%,var(--ink) 100%);color:#fff;text-align:center}
.cta-final h2{color:#fff}
.cta-final p{color:#e5dccd;max-width:60ch;margin-inline:auto}
.cta-final .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:22px}

/* Pied de page */
footer.site{background:var(--ink);color:#c9c1b4;padding-block:56px 110px;font-size:.93rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
footer.site h3{color:#fff;font-size:1.05rem;font-family:var(--font-b);text-transform:uppercase;letter-spacing:.1em;font-weight:600}
footer.site ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer.site a{color:#e9e2d6;text-decoration:none}
footer.site a:hover{text-decoration:underline;color:#fff}
footer.site .legal{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}
@media (max-width:900px){footer.site .cols{grid-template-columns:1fr 1fr}}
@media (max-width:560px){footer.site .cols{grid-template-columns:1fr}footer.site{padding-bottom:130px}}

/* Barre mobile appel / devis */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:var(--surface);border-top:1px solid var(--line);padding:8px 10px calc(8px + env(safe-area-inset-bottom));gap:8px}
.mobile-bar .btn{flex:1;justify-content:center;padding:.75em .6em;font-size:.95rem}
@media (max-width:820px){.mobile-bar{display:flex}}

/* Pastilles flottantes */
.floaters{position:fixed;right:14px;bottom:18px;z-index:95;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
@media (max-width:820px){.floaters{bottom:calc(74px + env(safe-area-inset-bottom))}}
.floater{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.25);text-decoration:none;border:none;cursor:pointer;transition:transform .15s}
.floater:hover{transform:scale(1.06)}
.floater svg{width:26px;height:26px}
.floater.wa{background:#25D366}
.floater.li{background:#0A66C2}
.floater.help{display:inline-flex;align-items:center;white-space:nowrap;background:var(--brass);color:var(--ink);width:auto;border-radius:999px;padding:0 18px;height:50px;font-weight:700;font-family:var(--font-b);font-size:.95rem;gap:8px}
.floater[hidden]{display:none}

/* Chatbot */
.chat{position:fixed;right:14px;bottom:80px;width:min(380px,calc(100vw - 28px));max-height:min(620px,calc(100vh - 110px));background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.25);z-index:96;display:flex;flex-direction:column;overflow:hidden}
.chat[hidden]{display:none}
@media (max-width:820px){.chat{bottom:calc(136px + env(safe-area-inset-bottom));max-height:calc(100vh - 200px)}}
.chat-head{background:var(--ink);color:#fff;padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.chat-head strong{font-family:var(--font-h);font-size:1.05rem}
.chat-head small{display:block;color:#c9c1b4;font-size:.78rem}
.chat-head button{background:none;border:0;color:#fff;font-size:1.4rem;cursor:pointer;line-height:1;padding:4px 8px}
.chat-body{padding:14px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;flex:1;font-size:.95rem}
.msg{max-width:90%;padding:10px 13px;border-radius:14px;line-height:1.45}
.msg.bot{background:var(--bg);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.user{background:var(--ink);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.alert{background:#fdecec;border:1px solid #f1b6b6;color:#7a1d1d;align-self:stretch;max-width:100%}
.msg.alert strong{display:block;font-size:1.05rem;margin-bottom:6px}
.msg a{color:inherit;font-weight:600}
.msg ul{margin:.4em 0 0;padding-left:1.2em}
.choices{display:flex;flex-wrap:wrap;gap:6px;align-self:flex-start;max-width:100%}
.choices button{background:#fff;border:1.5px solid var(--ink);border-radius:999px;padding:.45em .9em;cursor:pointer;font:inherit;font-size:.9rem;color:var(--ink)}
.choices button:hover{background:var(--ink);color:#fff}
.choices a.btn{padding:.5em 1em;font-size:.9rem}
.chat-foot{border-top:1px solid var(--line);padding:8px 10px;display:flex;gap:6px;background:#fff}
.chat-foot input{flex:1;border:1px solid var(--line);border-radius:999px;padding:.6em 1em;font:inherit;font-size:.95rem;min-width:0}
.chat-foot button{background:var(--ink);color:#fff;border:0;border-radius:999px;padding:0 14px;cursor:pointer;font-weight:600}
.chat-note{font-size:.72rem;color:var(--muted);padding:4px 14px 8px;background:#fff}

/* Formulaires */
form.f{display:grid;gap:16px}
.field{display:grid;gap:6px}
.field label{font-weight:600;font-size:.95rem}
.field label .opt{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{font:inherit;padding:.7em .9em;border:1.5px solid #cfc5b6;border-radius:10px;background:#fff;width:100%;min-height:46px}
.field textarea{min-height:130px;resize:vertical}
.field .hint{font-size:.85rem;color:var(--muted)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.field .error{color:var(--err);font-size:.88rem;display:none}
.field.invalid .error{display:block}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:600px){.row-2{grid-template-columns:1fr}}
.radios{display:flex;flex-wrap:wrap;gap:8px}
.radios label{border:1.5px solid #cfc5b6;border-radius:999px;padding:.5em 1em;cursor:pointer;background:#fff;display:flex;gap:8px;align-items:center;font-weight:500}
.radios label:has(input:checked){border-color:var(--ink);background:var(--ink);color:#fff}
.radios input{margin:0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem}
.check input{margin-top:5px;flex:none;width:18px;height:18px}
.honey{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-status{padding:14px 16px;border-radius:12px;display:none;font-weight:500}
.form-status.ok{display:block;background:#e6f2e9;border:1px solid #b9d9c1;color:var(--ok)}
.form-status.err{display:block;background:#fdecec;border:1px solid #f1b6b6;color:var(--err)}
.form-status.wait{display:block;background:var(--bg);border:1px solid var(--line)}
.stepper{display:flex;gap:6px;list-style:none;padding:0;margin:0 0 20px;flex-wrap:wrap}
.stepper li{flex:1;min-width:120px;font-size:.82rem;padding:8px 10px;border-radius:8px;background:var(--bg);border:1px solid var(--line);color:var(--muted)}
.stepper li.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.stepper li.done{background:var(--brass);color:var(--ink);border-color:var(--brass)}
.step{display:none}.step.active{display:grid;gap:16px}
.step-nav{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
fieldset{border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:0;background:#fff;min-width:0}
legend{font-weight:600;padding:0 6px;font-family:var(--font-h);font-size:1.1rem}
.recap{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:.93rem}
.recap dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:4px 14px}
.recap dt{color:var(--muted)}.recap dd{margin:0}
.tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.tabs button{font:inherit;font-weight:600;padding:.7em 1.2em;border-radius:999px;border:2px solid var(--ink);background:#fff;cursor:pointer;color:var(--ink)}
.tabs button[aria-selected="true"]{background:var(--ink);color:#fff}
.panel[hidden]{display:none}

/* Blog */
.post-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:900px){.post-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.post-list{grid-template-columns:1fr}}
.post-list .card .cat{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--brass-2);font-weight:600}
.post-list .card .status{font-size:.8rem;color:var(--warn);font-weight:600}
.blog-tools{display:grid;grid-template-columns:1fr auto;gap:12px;margin-bottom:28px}
@media (max-width:600px){.blog-tools{grid-template-columns:1fr}}
.blog-tools input,.blog-tools select{font:inherit;padding:.7em 1em;border:1.5px solid #cfc5b6;border-radius:10px;min-height:46px;width:100%}
.article{max-width:76ch}
.article h2{font-size:1.5rem;margin-top:1.6em}
.article h3{font-size:1.2rem;margin-top:1.2em}
.article ul,.article ol{padding-left:1.3em}
.notice{border-left:4px solid var(--brass);background:var(--surface);padding:14px 18px;border-radius:0 12px 12px 0;margin:1.2em 0}
.notice.danger{border-color:var(--err);background:#fdecec}
.notice.draft{border-color:var(--warn);background:#fff6e5}
.meta{font-size:.88rem;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap;margin-bottom:1.5em}
.tag{display:inline-block;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:.15em .7em;font-size:.82rem}

/* Page intérieure */
.page-head{background:var(--ink);color:#e9e2d6;padding-block:56px}
.page-head h1{color:#fff}
.page-head p{color:#d3cabb;max-width:60ch;font-size:1.1rem;margin:0}
.crumbs{font-size:.85rem;color:#b9b0a1;margin-bottom:14px}
.crumbs a{color:#e0d8ca;text-decoration:none}
.prose{max-width:74ch}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.2em}
.prose ul{padding-left:1.3em}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface)}
.table-wrap{overflow-x:auto}
.todo{background:#fff6e5;border:1px dashed var(--warn);color:var(--warn);padding:2px 8px;border-radius:6px;font-size:.9em;font-weight:600}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.info-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.info-list li{display:flex;gap:12px;align-items:flex-start}
.info-list svg{width:22px;height:22px;flex:none;color:var(--brass-2);margin-top:3px}
.info-list a{font-weight:600}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.gallery{grid-template-columns:1fr}}
.page-404{text-align:center;padding-block:96px}
.page-404 .big{font-family:var(--font-h);font-size:6rem;color:var(--brass);line-height:1}