/* Batirenfort — page d'attente batirenfort.fr */
:root{
  --ink:#1d252d;
  --paper:#f7f6f2;
  --steel:#d9e1e2;
  --orange:#f26728;

  /* Thème sombre (par défaut) */
  --bg:var(--ink);
  --fg:var(--paper);
  --line:rgba(217,225,226,.14);
  --grid:rgba(217,225,226,.05);
  --ghost-line:rgba(217,225,226,.4);
  --txt-lead:rgba(217,225,226,.82);
  --txt-coords:rgba(217,225,226,.65);
  --txt-service:rgba(217,225,226,.62);
  --txt-footer:rgba(217,225,226,.5);
  --orange-txt:var(--orange); /* l'orange plein tient sur l'encre (~5:1) */
  color-scheme:dark;
}

/* Thème clair */
@media (prefers-color-scheme: light){
  :root{
    --bg:var(--paper);
    --fg:var(--ink);
    --line:rgba(29,37,45,.16);
    --grid:rgba(29,37,45,.05);
    --ghost-line:rgba(29,37,45,.42);
    --txt-lead:rgba(29,37,45,.85);
    --txt-coords:rgba(29,37,45,.68);
    --txt-service:rgba(29,37,45,.66);
    --txt-footer:rgba(29,37,45,.58);
    --orange-txt:#bf4a10; /* orange assombri : lisible sur le papier (≥4,5:1) */
    color-scheme:light;
  }
}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:'Archivo',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block}

.page{min-height:100svh;display:flex;flex-direction:column}

/* En-tête */
.topbar{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:26px clamp(20px,4vw,56px);
  border-bottom:1px solid var(--line);
}
.lockup{display:flex;align-items:center;gap:16px}
.mark{height:44px;width:44px}
.wordmark{height:19px;width:auto}
.coords{
  font:500 12px 'IBM Plex Mono',monospace;
  letter-spacing:2px;color:var(--txt-coords);
  text-align:right;
}

/* Bande de balisage */
.hazard{height:7px;background:repeating-linear-gradient(-45deg,var(--orange) 0 12px,var(--bg) 12px 24px)}

/* Héro */
.hero{
  flex:1;position:relative;overflow:hidden;
  padding:clamp(48px,8vh,84px) clamp(20px,4vw,56px) clamp(48px,7vh,72px);
  background-image:
    repeating-linear-gradient(0deg,var(--grid) 0 1px,transparent 1px 88px),
    repeating-linear-gradient(90deg,var(--grid) 0 1px,transparent 1px 88px);
}
.watermark{
  position:absolute;right:-70px;top:60px;width:min(540px,60vw);
  opacity:.07;pointer-events:none;user-select:none;
}
.status{
  display:flex;align-items:center;gap:14px;margin:0;
  font:600 12px 'IBM Plex Mono',monospace;letter-spacing:2.5px;color:var(--orange-txt);
}
.dot{width:10px;height:10px;background:var(--orange-txt);animation:blink 1.6s steps(1) infinite;flex:none}
@keyframes blink{50%{opacity:.2}}
@media (prefers-reduced-motion: reduce){.dot{animation:none}}
h1{
  margin:34px 0 0;max-width:900px;
  font:800 clamp(44px,6.5vw,94px)/0.98 'Archivo',sans-serif;
  letter-spacing:-0.027em;
}
.sub{
  margin:18px 0 0;
  font:600 clamp(21px,2.1vw,30px)/1.2 'Archivo',sans-serif;
  color:var(--orange-txt);letter-spacing:-.5px;
}
.lead{
  margin:30px 0 0;max-width:620px;
  font:400 17px/1.65 'Archivo',sans-serif;
  color:var(--txt-lead);
  text-wrap:pretty;
}
.cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:44px;position:relative;z-index:1}
.btn-primary{
  background:var(--orange);color:var(--ink);
  font:700 16px 'Archivo',sans-serif;letter-spacing:.2px;
  padding:18px 30px;transition:background .15s,color .15s;
}
.btn-primary:hover{background:var(--fg);color:var(--bg)}
.btn-ghost{
  border:1px solid var(--ghost-line);color:var(--fg);
  font:500 15px 'IBM Plex Mono',monospace;letter-spacing:1px;
  padding:18px 26px;transition:color .15s,border-color .15s;
}
.btn-ghost:hover{border-color:var(--orange-txt);color:var(--orange-txt)}

/* Lots */
.services{
  display:grid;grid-template-columns:1fr 1fr 1fr;
  border-top:1px solid var(--line);
}
.service{padding:34px clamp(24px,3vw,40px) 38px}
.service:first-child{padding-left:clamp(20px,4vw,56px)}
.service:last-child{padding-right:clamp(20px,4vw,56px)}
.service + .service{border-left:1px solid var(--line)}
.lot{margin:0;font:600 12px 'IBM Plex Mono',monospace;color:var(--orange-txt);letter-spacing:2px}
.service h2{margin:12px 0 0;font:700 21px 'Archivo',sans-serif}
.service p:last-child{margin:8px 0 0;font:400 14px/1.6 'Archivo',sans-serif;color:var(--txt-service)}

/* Pied de page */
.footer{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;
  padding:20px clamp(20px,4vw,56px);
  border-top:1px solid var(--line);
  font:400 12px 'IBM Plex Mono',monospace;
  color:var(--txt-footer);letter-spacing:1px;
}

/* Écrans moyens */
@media (max-width:1024px){
  .services{grid-template-columns:1fr}
  .service{padding:26px clamp(20px,4vw,56px) 30px}
  .service + .service{border-left:none;border-top:1px solid var(--line)}
}

/* Mobile */
@media (max-width:680px){
  .topbar{flex-direction:column;align-items:flex-start;gap:14px}
  .coords{text-align:left}
  .watermark{right:-90px;top:auto;bottom:-60px}
  .cta{flex-direction:column;align-items:stretch}
  .btn-primary,.btn-ghost{text-align:center}
  .footer{flex-direction:column}
}