/* =========================================================
   KLC KAROT — design system
   Palette : béton / acier / oxyde d'armature / jaune chantier
   ========================================================= */

:root{
  --concrete:    #c7c2b6;   /* béton clair */
  --concrete-lt: #efece4;   /* papier béton très clair */
  --charcoal:    #1d1b19;   /* noir chaud, ombre de chantier */
  --steel:       #3d4347;   /* gris acier froid */
  --steel-lt:    #5b6368;
  --rust:        #b5481f;   /* oxyde de l'armature */
  --rust-dark:   #8d3815;
  --safety:      #f0a202;   /* jaune sécurité */
  --paper:       #f6f3ec;
  --line:        rgba(0,0,0,0.12);

  --font-display: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --chamfer: 14px; /* coupe d'angle façon plaque d'ancrage */
}

@font-face{
  font-family:'Oswald';
  src: local('Oswald');
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--concrete-lt);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }

a{ color:inherit; text-decoration:none; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  text-transform:uppercase;
  letter-spacing:0.04em;
  line-height:1.15;
  color: var(--charcoal);
}

.wrap{
  max-width:1240px;
  margin:0 auto;
  padding:0 1.75rem;
}

/* ---------- chamfer / steel-plate shape (signature) ---------- */
.plate{
  clip-path: polygon(
    var(--chamfer) 0, 100% 0, 100% calc(100% - var(--chamfer)),
    calc(100% - var(--chamfer)) 100%, 0 100%, 0 var(--chamfer)
  );
}

/* ---------- rebar divider (signature element) ---------- */
.rebar-divider{
  width:100%;
  height:18px;
  margin: 0;
  background-repeat: repeat-x;
  background-size: 36px 18px;
  background-image: linear-gradient(135deg, transparent 47%, var(--rust) 47%, var(--rust) 53%, transparent 53%),
                     linear-gradient(45deg, transparent 47%, var(--rust) 47%, var(--rust) 53%, transparent 53%);
  opacity:0.55;
}
.rebar-divider.dark{ opacity:0.9; }

/* =========================================================
   TOPBAR / NAV
   ========================================================= */
.topbar{
  background: var(--charcoal);
  color: var(--paper);
  font-size:0.82rem;
  letter-spacing:0.04em;
}
.topbar .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:0.45rem 1.75rem;
  flex-wrap:wrap;
  gap:0.4rem;
}
.topbar a{ color: var(--safety); font-weight:600; }
.topbar .topbar-tag{ color:#a9a39690; text-transform:uppercase; letter-spacing:0.12em; font-size:0.72rem;}

header.site-header{
  background: var(--charcoal);
  border-bottom: 4px solid var(--rust);
  position: sticky;
  top:0;
  z-index: 500;
}

nav.main-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0.9rem 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:0.9rem;
}

.brand-text{
  display:flex;
  flex-direction:column;
}

.brand-text .brand-name{
  color:white;
  font-size:1.45rem;
  font-weight:700;
  letter-spacing:0.06em;
}
.brand-text .brand-sub{
  color: var(--safety);
  font-size:0.7rem;
  text-transform:uppercase;
  letter-spacing:0.18em;
  font-weight:600;
}

.nav-links{
  display:flex;
  gap:2rem;
  list-style:none;
  font-family: var(--font-display);
  text-transform:uppercase;
  font-size:0.92rem;
  letter-spacing:0.06em;
}

.nav-links a{
  color:#d8d4cb;
  padding:0.4rem 0;
  border-bottom:2px solid transparent;
  transition: all .2s;
}
.nav-links a:hover, .nav-links a.active{
  color:white;
  border-bottom-color: var(--safety);
}

.nav-call{
  display:flex;
  align-items:center;
  gap:0.6rem;
}

.nav-call .btn{ padding:0.6rem 1.2rem; font-size:0.85rem; }

.burger{
  display:none;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
  background:none;
  border:none;
  padding:6px;
}
.burger span{ width:26px; height:3px; background:white; display:block; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  gap:0.6rem;
  font-family: var(--font-display);
  text-transform:uppercase;
  letter-spacing:0.06em;
  font-weight:600;
  font-size:1rem;
  padding:0.95rem 2rem;
  border: 2px solid transparent;
  cursor:pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: transform .15s, box-shadow .15s, background .2s;
}
.btn-rust{
  background: var(--rust);
  color:white;
}
.btn-rust:hover{ background: var(--rust-dark); transform:translateY(-2px); }

.btn-safety{
  background: var(--safety);
  color: var(--charcoal);
}
.btn-safety:hover{ background:#d99102; transform:translateY(-2px); }

.btn-outline{
  background:transparent;
  color:white;
  border-color: rgba(255,255,255,0.55);
}
.btn-outline:hover{ border-color:white; background:rgba(255,255,255,0.08); }

.btn img.icon{ width:20px; height:20px; }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;
  min-height:78vh;
  display:flex;
  align-items:center;
  background-color:var(--charcoal);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(110deg, rgba(20,18,16,0.92) 0%, rgba(20,18,16,0.72) 45%, rgba(181,72,31,0.35) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:680px;
  padding:5rem 1.75rem;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:0.6rem;
  color: var(--safety);
  font-family: var(--font-display);
  text-transform:uppercase;
  letter-spacing:0.2em;
  font-size:0.85rem;
  font-weight:700;
  margin-bottom:1.2rem;
}
.eyebrow::before{
  content:"";
  width:30px; height:3px; background: var(--safety);
}
.hero h1{
  color:white;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin-bottom:1.3rem;
}
.hero h1 span{ color: var(--safety); }
.hero p.lead{
  color:#e7e3d8;
  font-size:1.15rem;
  max-width:540px;
  margin-bottom:2rem;
}
.hero-actions{ display:flex; gap:1.2rem; flex-wrap:wrap; margin-bottom:2rem;}

.hero-phoneline{
  display:flex;
  align-items:center;
  gap:0.8rem;
  color:white;
  font-family: var(--font-display);
}
.hero-phoneline a{
  color: var(--safety);
  font-size:1.5rem;
  font-weight:700;
  letter-spacing:0.04em;
}

/* page hero (sous-pages, plus court) */
.page-hero{
  position:relative;
  min-height:38vh;
  display:flex;
  align-items:center;
  background-color: var(--charcoal);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(110deg, rgba(18,16,15,0.93) 0%, rgba(18,16,15,0.82) 50%, rgba(181,72,31,0.45) 100%);
}
.page-hero .hero-inner{ position:relative; z-index:2; padding:4rem 1.75rem 3rem; max-width:780px; }
.page-hero p.lead{ margin-bottom:0; color:#f1eee6; }

/* =========================================================
   SECTIONS GÉNÉRIQUES
   ========================================================= */
section{ padding:4.5rem 0; }
section.tight{ padding:3rem 0; }
.section-dark{ background: var(--charcoal); color:var(--paper); }
.section-dark h2{ color:white; }
.section-steel{ background: var(--steel); color:var(--paper);}
.section-steel h2{ color:white; }
.section-paper{ background: var(--paper); }

.kicker{
  font-family: var(--font-display);
  color: var(--rust);
  text-transform:uppercase;
  letter-spacing:0.18em;
  font-size:0.85rem;
  font-weight:700;
  margin-bottom:0.6rem;
  display:block;
}
.section-dark .kicker, .section-steel .kicker{ color: var(--safety); }

h2.section-title{
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin-bottom:1rem;
}
.section-intro{
  max-width:680px;
  color:#534f48;
  margin-bottom:2.8rem;
  font-size:1.05rem;
}
.section-dark .section-intro, .section-steel .section-intro{ color:#d9d5cb; }

/* =========================================================
   SERVICES GRID
   ========================================================= */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.8rem;
}
.service-card{
  background:white;
  padding:2.2rem 1.9rem;
  border-top:5px solid var(--rust);
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}
.service-card .num{
  font-family:var(--font-display);
  color: var(--concrete);
  font-size:2.4rem;
  font-weight:700;
  line-height:1;
  -webkit-text-stroke: 1px var(--rust);
  color: transparent;
  margin-bottom:0.6rem;
  display:block;
}
.service-card h3{ font-size:1.2rem; margin-bottom:0.7rem; }
.service-card p{ color:#5a564e; font-size:0.97rem; }

/* =========================================================
   GALERIE
   ========================================================= */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.5rem;
}
.gallery-item{
  position:relative;
  overflow:hidden;
  cursor:pointer;
  background:var(--steel);
}
.gallery-item img{
  width:100%;
  height:260px;
  object-fit:cover;
  transition: transform .4s;
}
.gallery-item:hover img{ transform:scale(1.08); }
.gallery-cap{
  position:absolute;
  left:0; right:0; bottom:0;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  color:white;
  padding:0.9rem 1rem 0.7rem;
  font-family: var(--font-display);
  font-size:0.85rem;
  text-transform:uppercase;
  letter-spacing:0.04em;
}

/* modal */
.modal{
  display:none;
  position:fixed; inset:0;
  background:rgba(10,9,8,0.95);
  z-index:9000;
  align-items:center;
  justify-content:center;
}
.modal.show{ display:flex; }
.modal img{
  max-width:90%;
  max-height:88vh;
  object-fit:contain;
}
.modal-close{
  position:absolute; top:24px; right:34px;
  color:white; font-size:2.6rem; cursor:pointer;
}
.modal-nav{
  position:absolute; top:50%; transform:translateY(-50%);
  color:white; font-size:2.6rem; cursor:pointer; padding:1rem;
  user-select:none;
}
.modal-nav:hover, .modal-close:hover{ color:var(--safety); }
.modal-prev{ left:1rem; }
.modal-next{ right:1rem; }

/* =========================================================
   FEATURES / WHY US
   ========================================================= */
.features-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1.6rem;
}
.feature-item{
  display:flex;
  gap:1.2rem;
  background: rgba(255,255,255,0.06);
  border-left:4px solid var(--safety);
  padding:1.6rem;
}
.feature-item .ico{
  flex-shrink:0;
  width:42px; height:42px;
  background: var(--safety);
  color:var(--charcoal);
  display:flex; align-items:center; justify-content:center;
  font-weight:700;
  font-family:var(--font-display);
  clip-path: polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.feature-item strong{ display:block; margin-bottom:0.3rem; color:white; font-family:var(--font-display); letter-spacing:0.03em;}
.feature-item p{ color:#cfcbc0; font-size:0.95rem; margin:0;}

/* =========================================================
   STATS STRIP
   ========================================================= */
.stats-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background: var(--rust);
  color:white;
}
.stat{
  padding:2rem 1rem;
  text-align:center;
  border-right:1px solid rgba(255,255,255,0.25);
}
.stat:last-child{ border-right:none; }
.stat .num{
  font-family:var(--font-display);
  font-size:2.4rem;
  font-weight:700;
  color: var(--charcoal);
  -webkit-text-stroke: 1px white;
  color:transparent;
}
.stat .lbl{
  text-transform:uppercase;
  letter-spacing:0.08em;
  font-size:0.78rem;
  font-weight:600;
}

/* =========================================================
   REGIONS / TAGS
   ========================================================= */
.tag-row{ display:flex; flex-wrap:wrap; gap:1rem; }
.tag{
  background: rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.3);
  padding:0.8rem 1.5rem;
  font-family:var(--font-display);
  text-transform:uppercase;
  font-size:0.85rem;
  letter-spacing:0.05em;
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:3rem;
  align-items:flex-start;
}
.contact-info .phone-big{
  font-family:var(--font-display);
  font-size:2.4rem;
  color:var(--safety);
  font-weight:700;
  letter-spacing:0.03em;
  margin:1rem 0;
}
.contact-info ul{ list-style:none; margin-top:1.5rem; }
.contact-info li{ margin-bottom:0.8rem; color:#d9d5cb; }
.contact-info li strong{ color:white; margin-right:0.4rem; }

.form-box{
  background: rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.2);
  padding:2.2rem;
}
.form-control{
  width:100%;
  padding:0.95rem 1rem;
  margin-bottom:1.1rem;
  background: rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.3);
  color:white;
  font-family:var(--font-body);
  font-size:1rem;
}
.form-control::placeholder{ color:#bdb9af; }
.form-control:focus{ outline:none; border-color: var(--safety); }
select.form-control option{ color:black; }

/* =========================================================
   FOOTER
   ========================================================= */
footer{
  background: var(--charcoal);
  color:#a9a39d;
  padding:3rem 0 1.5rem;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap:2.5rem;
  margin-bottom:2rem;
}
.footer-brand{ display:flex; align-items:center; gap:0.8rem; margin-bottom:1rem; }
.footer-brand .brand-name{ color:white; font-family:var(--font-display); font-size:1.2rem; }
footer h4{
  color:white; font-size:0.95rem; margin-bottom:1rem; letter-spacing:0.08em;
}
footer ul{ list-style:none; }
footer li{ margin-bottom:0.6rem; }
footer a:hover{ color:var(--safety); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding-top:1.4rem;
  text-align:center;
  font-size:0.85rem;
}

/* whatsapp floating button */
.wa-float{
  position:fixed;
  bottom:24px; right:24px;
  background:#25D366;
  width:60px; height:60px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,0.35);
  z-index:600;
}
.wa-float img{ width:30px; height:30px; }

/* =========================================================
   BREADCRUMB-ISH PAGE INTRO
   ========================================================= */
.crumb{
  font-size:0.85rem;
  color:#7a756c;
  margin-bottom:0.6rem;
}
.crumb a{ color:var(--rust); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px){
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .features-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .stats-strip{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width: 760px){
  .nav-links, .nav-call{ display:none; }
  .burger{ display:flex; }
  nav.main-nav.open .nav-links{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:100%; left:0; right:0;
    background:var(--charcoal);
    padding:1.5rem;
    gap:1rem;
    border-top:2px solid var(--rust);
  }
  nav.main-nav.open .nav-call{
    display:flex;
    position:absolute;
    top:calc(100% + 13.5rem);
    left:1.5rem;
  }
  .hero{ min-height:62vh; }
  .hero-inner{ padding:3rem 1.25rem; }
  .services-grid, .gallery-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .stats-strip{ grid-template-columns:repeat(2,1fr); }
  section{ padding:3rem 0; }
}