@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600&display=swap');

:root{
  --ink:#1E1E1D; --ink-soft:#565652;
  --plaque:#CF181A; --plaque-dark:#A31114;
  --paper:#FFFFFF; --panel:#EDEDE9; --rule:#D8D8D2;
  --max:1180px; --gut:clamp(1.25rem,4vw,2.5rem);
  --display:'Archivo',system-ui,sans-serif;
  --text:'Source Serif 4',Georgia,serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--text);font-size:1.0625rem;line-height:1.65;}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}

h1,h2,h3,.dsp{font-family:var(--display);font-weight:800;letter-spacing:-.025em;line-height:1.05;margin:0}
h1{font-size:clamp(2rem,5.4vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem)}
h3{font-size:1.125rem;font-weight:700;letter-spacing:-.015em}
p{margin:0 0 1rem;max-width:68ch}

/* Plaque émaillée : le motif de la maison */
/* Le rapport du logo : le noir domine, le rouge est le bandeau */
.plaque{background:var(--ink);color:#fff;position:relative;border-radius:3px;padding:clamp(1.75rem,4vw,2.75rem)}
.plaque::after{content:"";position:absolute;inset:7px;border:2px solid var(--plaque);border-radius:2px;pointer-events:none}
.plaque p{color:rgba(255,255,255,.92)}
.plaque--rouge{background:var(--plaque)}
.plaque--rouge::after{border-color:rgba(255,255,255,.72);border-width:1.5px}

.btn{display:inline-block;font-family:var(--display);font-weight:700;font-size:.975rem;letter-spacing:-.01em;
  padding:.8em 1.4em;border-radius:3px;text-decoration:none;border:2px solid transparent;transition:background .15s,color .15s}
.btn-primary{background:var(--plaque);color:#fff}
.plaque--rouge .btn-primary{background:#fff;color:var(--plaque-dark)}
.btn-primary:hover{background:var(--plaque-dark)}
.plaque--rouge .btn-primary:hover{background:var(--panel);color:var(--plaque-dark)}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-ink{background:var(--plaque);color:#fff}
.btn-ink:hover{background:var(--plaque-dark)}
:focus-visible{outline:3px solid #1E1E1D;outline-offset:2px}

/* En-tête */
.site-head{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--rule)}
.site-head .wrap{display:flex;align-items:center;gap:1.5rem;min-height:74px}
.mark{display:block;line-height:0}
.mark img{height:34px;width:auto}
.foot-logo{height:38px;width:auto;margin-bottom:1.1rem}
.nav{margin-left:auto;display:flex;gap:1.35rem;align-items:center;font-family:var(--display);font-size:.95rem;font-weight:600}
.nav a{text-decoration:none;padding:.35rem 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--plaque)}
.tel{font-family:var(--display);font-weight:700;text-decoration:none;white-space:nowrap}
@media(max-width:860px){
  .site-head .wrap{flex-wrap:wrap;gap:.6rem 1rem;padding-block:.7rem;min-height:0}
  .tel{margin-left:auto}
  .nav{order:3;flex-basis:100%;margin-left:0;gap:1rem;overflow-x:auto;
       padding-bottom:.2rem;font-size:.875rem;-webkit-overflow-scrolling:touch}
  .nav::-webkit-scrollbar{display:none}
  .nav a{white-space:nowrap}
}
@media(max-width:420px){.mark img{height:28px}.tel{font-size:.9rem}}

/* Hero */
.hero{position:relative}
.hero-img{width:100%;height:clamp(340px,56vh,560px);object-fit:cover}
.hero .wrap{position:relative}
.hero-plaque{max-width:38rem;margin-top:-5rem;position:relative;z-index:2}
.hero-plaque h1{color:#fff}
.hero-plaque .lede{font-size:1.075rem;margin:1rem 0 1.6rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}
@media(max-width:700px){.hero-plaque{margin-top:-2rem}}

section{padding-block:clamp(3rem,7vw,5.5rem)}
.sec-head{margin-bottom:2.25rem;max-width:60ch}
.sec-head p{color:var(--ink-soft);margin-top:.7rem}

/* Prestations */
.grid-presta{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:2rem 1.75rem}
.presta{text-decoration:none;display:block}
.presta img{aspect-ratio:4/3;object-fit:cover;border-radius:3px;background:var(--panel)}
.presta h3{margin-top:.9rem}
.presta:hover h3{text-decoration:underline;text-underline-offset:3px}
.presta p{font-size:.975rem;color:var(--ink-soft);margin:.3rem 0 0}
.presta-plaque{display:flex;flex-direction:column;justify-content:center;min-height:100%;text-decoration:none}
.presta-plaque h3{color:#fff}

/* Preuves */
.band{background:var(--panel)}
.grid-proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem}
.proof .n{font-family:var(--display);font-weight:800;font-size:2.1rem;letter-spacing:-.04em;color:var(--plaque);line-height:1}
.proof h3{margin:.45rem 0 .35rem}
.proof p{font-size:.975rem;color:var(--ink-soft);margin:0}

/* Réalisations */
.grid-real{display:grid;grid-template-columns:repeat(3,1fr);gap:.85rem}
.grid-real figure{margin:0;position:relative;border-radius:3px;overflow:hidden;background:var(--panel)}
.grid-real img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}
.grid-real .big{grid-column:span 2;grid-row:span 2}
.grid-real .big img{aspect-ratio:3/2;height:100%}
.grid-real figcaption{position:absolute;left:0;right:0;bottom:0;padding:.85rem .95rem;color:#fff;font-family:var(--display);
  font-size:.875rem;font-weight:600;background:linear-gradient(to top,rgba(10,16,30,.82),rgba(10,16,30,0))}
@media(max-width:760px){.grid-real{grid-template-columns:repeat(2,1fr)}.grid-real .big{grid-column:span 2;grid-row:auto}}

/* Zone */
.towns{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.75rem;padding:0;list-style:none}
.towns li{background:var(--plaque);color:#fff;font-family:var(--display);font-weight:600;font-size:.875rem;
  padding:.45rem .85rem;border-radius:2px;position:relative}
.towns li::after{content:"";position:absolute;inset:3px;border:1px solid rgba(255,255,255,.55);border-radius:1px}

/* Appel final */
.cta .plaque{text-align:center}
.cta h2{color:#fff}
.cta p{margin-inline:auto}
.cta .hero-actions{justify-content:center;margin-top:1.5rem}

/* Pied */
.site-foot{background:#141413;color:#C9C9C4;font-size:.95rem;padding-block:3rem 2rem}
.site-foot a{color:#fff}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:2rem}
.site-foot h3{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:.8rem}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:.4rem}
.legal{border-top:1px solid #2A2A28;margin-top:2.5rem;padding-top:1.5rem;font-size:.85rem;color:#8C8C88}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- Pages intérieures ---- */
.page-head{padding-block:clamp(2.5rem,6vw,4rem) 0}
.page-head h1{max-width:20ch}
.article{max-width:46rem}
.article h2{margin-top:2.75rem;padding-top:1.5rem;border-top:2px solid var(--plaque)}
.article h2:first-child{margin-top:0;padding-top:0;border-top:0}
.article p+p{margin-top:0}
.liste,.etapes{padding-left:1.15rem;margin:0 0 1.25rem}
.liste li,.etapes li{margin-bottom:.5rem;max-width:64ch}
.etapes{counter-reset:e;list-style:none;padding-left:0}
.etapes li{counter-increment:e;position:relative;padding-left:2.4rem;margin-bottom:.9rem}
.etapes li::before{content:counter(e);position:absolute;left:0;top:.1em;width:1.7rem;height:1.7rem;
  background:var(--plaque);color:#fff;border-radius:2px;font-family:var(--display);font-weight:700;
  font-size:.85rem;display:grid;place-items:center}
.cta-inline{margin-top:1.75rem}
.grid-real--plat .big{grid-column:auto;grid-row:auto}

/* ---- Réalisations ---- */
.filtres{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2.5rem}
.filtre{font-family:var(--display);font-weight:600;font-size:.9rem;padding:.5rem .95rem;border-radius:3px;
  border:2px solid var(--rule);background:none;color:var(--ink);cursor:pointer}
.filtre[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.chantier{margin-bottom:3rem}
.chantier h3{font-size:1.05rem}
.chantier .lieu{font-family:var(--text);font-weight:400;color:var(--ink-soft);font-size:.95rem;margin:.15rem 0 .9rem}
.vignettes{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem}
.vignettes a{display:block;border-radius:3px;overflow:hidden;background:var(--panel)}
.vignettes img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---- Formulaire ---- */
.form-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:3rem;align-items:start}
@media(max-width:820px){.form-grid{grid-template-columns:1fr;gap:2rem}}
.champ{margin-bottom:1.15rem}
.champ label{display:block;font-family:var(--display);font-weight:600;font-size:.925rem;margin-bottom:.35rem}
.champ input,.champ select,.champ textarea{width:100%;font:inherit;font-size:1rem;padding:.7rem .8rem;
  border:2px solid var(--rule);border-radius:3px;background:#fff;color:var(--ink)}
.champ input:focus,.champ select:focus,.champ textarea:focus{border-color:var(--ink);outline:none}
.champ textarea{min-height:9rem;resize:vertical}
.champ .aide{font-size:.875rem;color:var(--ink-soft);margin:.3rem 0 0}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:1.15rem}
@media(max-width:560px){.duo{grid-template-columns:1fr}}
.consent{display:flex;gap:.65rem;align-items:flex-start;font-size:.925rem;margin:1.5rem 0}
.consent input{width:1.15rem;height:1.15rem;flex:none;margin-top:.2rem}
.pot{position:absolute;left:-9999px}
.aside-contact{background:var(--panel);border-radius:3px;padding:1.75rem}
.aside-contact h2{font-size:1.2rem;margin-bottom:.75rem}
.aside-contact p{font-size:.975rem}
.msg{border-radius:3px;padding:1.1rem 1.25rem;margin-bottom:1.75rem;border-left:5px solid}
.msg-ok{background:#EEF6EE;border-color:#2F7D32}
.msg-ko{background:#FDEDED;border-color:var(--plaque)}