/* ============================================================
   ACSD Construction — Site vitrine (version classique)
   Tous les styles du site sont dans ce fichier.
   Palette : bleu nuit / gris / orange chantier
   ============================================================ */

:root{
  --night:#0f2a43;
  --night-2:#16395c;
  --grey:#5b6a78;
  --grey-light:#eef2f5;
  --grey-border:#d8e0e7;
  --orange:#e87e1e;
  --orange-dark:#c9650f;
  --white:#ffffff;
  --ink:#1c2934;
  --radius:14px;
  --shadow:0 6px 24px rgba(15,42,67,.12);
  --font:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);line-height:1.6;background:var(--white)}
img{max-width:100%;display:block}
a{color:var(--night-2);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1140px,92%);margin:0 auto}

/* ---------- Bandeau aperçu ---------- */
.demo-banner{
  background:var(--orange);color:#fff;text-align:center;
  font-size:.86rem;font-weight:600;padding:.45rem 1rem;letter-spacing:.02em;
}

/* ---------- En-tête ---------- */
.site-header{
  background:var(--night);color:#fff;position:sticky;top:0;z-index:50;
  box-shadow:0 2px 10px rgba(0,0,0,.25);
}
.header-inner{display:flex;align-items:center;gap:1rem;padding:.7rem 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:.7rem;color:#fff}
.logo:hover{text-decoration:none}
.logo-mark{
  background:var(--orange);color:#fff;font-weight:800;font-size:1.05rem;
  padding:.45rem .6rem;border-radius:8px;letter-spacing:.06em;line-height:1;
}
.logo-text{line-height:1.15}
.logo-text strong{display:block;font-size:1.25rem;letter-spacing:.08em}
.logo-text span{font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;color:#c9d6e2}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;gap:.4rem;list-style:none;flex-wrap:wrap}
.main-nav a{
  color:#e7eef5;padding:.45rem .75rem;border-radius:8px;font-size:.95rem;font-weight:600;
}
.main-nav a:hover{background:var(--night-2);text-decoration:none}
.main-nav a.active{background:var(--orange);color:#fff}
.btn{
  display:inline-block;background:var(--orange);color:#fff;font-weight:700;
  padding:.65rem 1.25rem;border-radius:10px;border:0;cursor:pointer;font-size:1rem;
}
.btn:hover{background:var(--orange-dark);text-decoration:none}
.btn-outline{
  background:transparent;border:2px solid var(--night);color:var(--night);
}
.btn-outline:hover{background:var(--night);color:#fff}
.btn-header{white-space:nowrap}
.nav-toggle{
  display:none;margin-left:auto;background:var(--night-2);color:#fff;border:0;
  font-size:1.3rem;padding:.35rem .7rem;border-radius:8px;cursor:pointer;
}

/* ---------- Fil d'Ariane ---------- */
.breadcrumb{background:var(--grey-light);font-size:.88rem;color:var(--grey);padding:.55rem 0}
.breadcrumb a{color:var(--grey)}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff}
.hero img.hero-img{width:100%;height:52vh;min-height:340px;object-fit:cover}
.hero-overlay{
  position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,42,67,.88) 0%,rgba(15,42,67,.45) 60%,rgba(15,42,67,.15) 100%);
  display:flex;align-items:center;
}
.hero h1{font-size:clamp(1.7rem,4.5vw,3rem);line-height:1.15;margin-bottom:.6rem}
.hero p{max-width:560px;font-size:1.05rem;margin-bottom:1.2rem;color:#e8eff6}
.hero .slogan{font-style:italic;color:#ffb066;font-weight:600}

/* ---------- Sections ---------- */
.section{padding:3rem 0}
.section.alt{background:var(--grey-light)}
.section h2{color:var(--night);font-size:1.7rem;margin-bottom:.6rem;line-height:1.25}
.section .lead{color:var(--grey);max-width:760px;margin-bottom:1.6rem}
.page-title{background:var(--night-2);color:#fff;padding:2.2rem 0}
.page-title h1{font-size:2rem;line-height:1.2}
.page-title p{color:#cfdeec;max-width:720px;margin-top:.4rem}

/* ---------- Cartes ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.2rem}
.card{
  background:#fff;border:1px solid var(--grey-border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.card img{height:180px;width:100%;object-fit:cover}
.card-body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.card h3{color:var(--night);font-size:1.12rem;line-height:1.3}
.card p{color:var(--grey);font-size:.95rem;flex:1}
.card .card-link{font-weight:700;color:var(--orange-dark)}
.tag{
  display:inline-block;background:var(--grey-light);color:var(--night-2);
  font-size:.75rem;font-weight:700;padding:.2rem .6rem;border-radius:99px;
  text-transform:uppercase;letter-spacing:.04em;align-self:flex-start;
}

/* ---------- Listes de prestations ---------- */
.service-block{margin-bottom:2.4rem}
.service-block h3{color:var(--night);font-size:1.3rem;margin-bottom:.4rem}
.service-block>p{color:var(--grey);max-width:820px;margin-bottom:.8rem}
.check-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.45rem 1.4rem}
.check-list li{padding-left:1.5rem;position:relative}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--orange);font-weight:800}

/* ---------- Horaires / statut ---------- */
.hours-box{
  background:#fff;border:1px solid var(--grey-border);border-radius:var(--radius);
  padding:1.3rem 1.4rem;box-shadow:var(--shadow);
}
.hours-box h3{color:var(--night);margin-bottom:.6rem}
.status-pill{
  display:inline-block;font-weight:700;font-size:.9rem;padding:.3rem .8rem;
  border-radius:99px;margin-bottom:.8rem;background:#fde8e8;color:#9d2c2c;
}
.status-pill.open{background:#e4f6e6;color:#1d6b2a}
table.hours{width:100%;border-collapse:collapse;font-size:.97rem}
table.hours td{padding:.42rem .2rem;border-bottom:1px solid var(--grey-border)}
table.hours tr:last-child td{border-bottom:0}
table.hours td:last-child{text-align:right;font-weight:600;color:var(--night)}
table.hours tr.today td{color:var(--orange-dark);font-weight:700}

/* ---------- Divers ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem;align-items:start}
.notice{
  border-left:4px solid var(--orange);background:#fdf3e7;padding:1rem 1.2rem;
  border-radius:0 10px 10px 0;margin:1rem 0;
}
.refs-band{background:var(--night);color:#fff}
.refs-band h2{color:#fff}
.refs-band .lead{color:#c9d6e2}
.refs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}
.refs-grid div{background:var(--night-2);border-radius:10px;padding:1rem 1.1rem}
.refs-grid strong{display:block;margin-bottom:.25rem}
.refs-grid span{color:#c9d6e2;font-size:.9rem}

/* ---------- Filtres réalisations ---------- */
.filters{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:1.4rem}
.filter-btn{
  border:2px solid var(--night);background:#fff;color:var(--night);font-weight:700;
  padding:.45rem 1.1rem;border-radius:99px;cursor:pointer;font-size:.95rem;
}
.filter-btn.active{background:var(--night);color:#fff}
.ref-card.hidden{display:none}

/* ---------- Galerie ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}
.gallery-item{border:0;background:none;cursor:pointer;text-align:left;padding:0}
.gallery-item img{height:200px;width:100%;object-fit:cover;border-radius:10px}
.gallery-item figcaption{font-size:.88rem;color:var(--grey);padding:.45rem .1rem 0}
.lightbox{
  position:fixed;inset:0;background:rgba(8,18,28,.92);z-index:100;
  display:none;align-items:center;justify-content:center;flex-direction:column;padding:1rem;
}
.lightbox.open{display:flex}
.lightbox img{max-height:78vh;max-width:94vw;border-radius:10px}
.lightbox p{color:#fff;margin-top:.8rem;text-align:center}
.lightbox-close{
  position:absolute;top:1rem;right:1.2rem;background:none;border:0;color:#fff;
  font-size:2rem;cursor:pointer;line-height:1;
}

/* ---------- Formulaire ---------- */
.form-grid{display:grid;gap:.9rem}
.form-grid label{font-weight:600;color:var(--night);display:grid;gap:.3rem;font-size:.95rem}
.form-grid input,.form-grid select,.form-grid textarea{
  font:inherit;padding:.6rem .75rem;border:1px solid var(--grey-border);
  border-radius:8px;width:100%;
}

/* ---------- Pied de page ---------- */
.site-footer{background:var(--night);color:#d7e2ec;margin-top:0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.6rem;padding:2.4rem 0 1.6rem}
.site-footer h4{color:#fff;margin-bottom:.6rem;font-size:1rem}
.site-footer a{color:#d7e2ec}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:.35rem}
.social-links{display:flex;gap:.6rem;margin-top:.6rem;flex-wrap:wrap}
.social-links a{
  background:var(--night-2);color:#fff;padding:.45rem .9rem;border-radius:8px;
  font-weight:600;font-size:.9rem;
}
.social-links a:hover{background:var(--orange);text-decoration:none}
.footer-bottom{border-top:1px solid var(--night-2);padding:1rem 0;font-size:.85rem;color:#9fb4c6;text-align:center}

/* ---------- Bouton WhatsApp flottant ---------- */
.whatsapp-float{
  position:fixed;right:1.1rem;bottom:1.1rem;z-index:90;background:#25d366;color:#fff;
  font-weight:700;padding:.8rem 1.15rem;border-radius:99px;box-shadow:0 8px 22px rgba(0,0,0,.28);
}
.whatsapp-float:hover{text-decoration:none;background:#1eb85a}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%;margin-left:0}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:.2rem;padding:.5rem 0}
  .btn-header{display:none}
  .two-col{grid-template-columns:1fr}
  .hero img.hero-img{height:46vh}
}