/* ============================================================
   DEVISFENETRES.CH — Design system
   Identité "menuiserie premium" — graphite / bronze / vert-verre
   ============================================================ */

:root{
  --graphite: #1E2226;
  --graphite-2: #2A2E33;
  --bronze: #A87C4F;
  --bronze-light: #C4996E;
  --glass: #8FA69C;
  --stone: #F1F0EC;
  --stone-2: #E9E7E1;
  --white: #FFFFFF;
  --line: #DEDAD2;
  --ink: #2A2E33;
  --muted: #6B7178;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--stone); color:var(--ink);
  font-family:'Manrope', sans-serif; font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces', serif; color:var(--graphite); margin:0 0 .5em; line-height:1.15;
  font-weight:600; letter-spacing:-.01em;
}
h1{font-size:clamp(2.4rem, 5vw, 4rem); font-weight:600;}
h2{font-size:clamp(1.8rem, 3.2vw, 2.6rem);}
h3{font-size:1.35rem;}
p{margin:0 0 1em;}
a{color:inherit;}
.mono{font-family:'Space Mono', monospace;}

.wrap{max-width:1180px; margin:0 auto; padding:0 24px;}
.wrap-narrow{max-width:820px; margin:0 auto; padding:0 24px;}

/* ---------- Header ---------- */
header.site{
  background:var(--graphite); color:var(--stone); position:sticky; top:0; z-index:50;
  border-bottom:1px solid rgba(255,255,255,.08);
}
header.site .bar{display:flex; align-items:center; justify-content:space-between; padding:18px 24px; max-width:1180px; margin:0 auto;}
.logo{display:flex; align-items:center; gap:10px; font-family:'Fraunces', serif; font-weight:600; font-size:20px; color:var(--stone); text-decoration:none;}
.logo .mark{width:30px; height:30px; flex-shrink:0;}
nav.main{display:flex; gap:28px; align-items:center;}
nav.main a{color:rgba(241,240,236,.78); text-decoration:none; font-size:14.5px; font-weight:500; transition:color .15s;}
nav.main a:hover{color:var(--bronze-light);}
.btn-cta{
  background:var(--bronze); color:var(--graphite); padding:11px 22px; border-radius:2px;
  font-weight:700; font-size:13.5px; text-decoration:none; letter-spacing:.02em; text-transform:uppercase;
  border:none; cursor:pointer; transition:background .15s;
}
.btn-cta:hover{background:var(--bronze-light);}

/* ---------- Footer ---------- */
footer.site{background:var(--graphite); color:rgba(241,240,236,.68); padding:64px 0 32px; margin-top:100px;}
footer.site h4{color:var(--stone); font-family:'Manrope',sans-serif; font-size:12.5px; text-transform:uppercase; letter-spacing:.08em; font-weight:700; margin-bottom:16px;}
footer.site .cols{display:grid; grid-template-columns:2fr repeat(4, 1fr); gap:32px;}
footer.site ul{list-style:none; margin:0; padding:0;}
footer.site li{margin-bottom:9px;}
footer.site a{color:rgba(241,240,236,.68); text-decoration:none; font-size:14px;}
footer.site a:hover{color:var(--bronze-light);}
footer.site .bottom{border-top:1px solid rgba(255,255,255,.1); margin-top:48px; padding-top:24px; font-size:12.5px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;}
@media (max-width:860px){ footer.site .cols{grid-template-columns:1fr 1fr;} }

/* ---------- Buttons / generic ---------- */
.btn-outline{
  border:1px solid var(--graphite); color:var(--graphite); padding:10px 20px; border-radius:2px;
  text-decoration:none; font-size:14px; font-weight:600; display:inline-block; transition:all .15s;
}
.btn-outline:hover{background:var(--graphite); color:var(--stone);}

.eyebrow{
  font-family:'Space Mono', monospace; font-size:12px; text-transform:uppercase; letter-spacing:.12em;
  color:var(--bronze); font-weight:700; margin-bottom:14px; display:inline-block;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:13px; color:var(--muted); padding:20px 0 0;}
.breadcrumb a{color:var(--muted); text-decoration:none;}
.breadcrumb a:hover{color:var(--bronze);}

/* ---------- Signature: frame-profile divider ---------- */
.frame-divider{width:100%; height:34px; margin:56px 0; opacity:.55;}

/* ---------- Cards / grid ---------- */
.card{background:var(--white); border:1px solid var(--line); border-radius:2px; padding:28px;}

/* ---------- FAQ (reused pattern) ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%; text-align:left; background:none; border:none; cursor:pointer; font-family:inherit; padding:20px 4px; display:flex; justify-content:space-between; align-items:center; gap:16px;}
.faq-q span.qtext{font-size:16px; font-weight:600; color:var(--graphite);}
.faq-q .plus{font-family:'Space Mono',monospace; font-size:18px; color:var(--bronze); flex-shrink:0; transition:transform .2s;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease;}
.faq-a p{padding:0 4px 20px; font-size:15px; color:var(--muted); max-width:640px;}

/* ---------- Legal modals ---------- */
.modal-overlay{display:none; position:fixed; inset:0; background:rgba(30,34,38,.7); z-index:200; align-items:center; justify-content:center; padding:24px;}
.modal-overlay.active{display:flex;}
.modal-box{background:var(--white); max-width:640px; max-height:80vh; overflow-y:auto; padding:40px; border-radius:2px; position:relative;}
.modal-close{position:absolute; top:16px; right:16px; background:none; border:none; font-size:20px; cursor:pointer; color:var(--muted);}

@media (max-width:720px){
  nav.main{display:none;}
}

/* ---------- Menu mobile (hamburger) ---------- */
.mobile-menu-btn{
  display:none; background:none; border:none; cursor:pointer; padding:6px;
  width:36px; height:36px; align-items:center; justify-content:center;
}
.mobile-menu-btn svg{width:22px; height:22px; color:var(--stone);}
@media (max-width:720px){
  .mobile-menu-btn{display:flex;}
}
.mobile-nav-panel{
  display:none; flex-direction:column; background:var(--graphite);
  border-top:1px solid rgba(255,255,255,.08); padding:8px 24px 20px;
}
.mobile-nav-panel.open{display:flex;}
.mobile-nav-panel a{
  color:rgba(241,240,236,.85); text-decoration:none; font-size:15px; font-weight:500;
  padding:14px 0; border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-nav-panel a:last-child{border-bottom:none;}

/* ---------- Interactions / profondeur ---------- */
.card, .cat-card, .material-card, .testi-card{
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover, .material-card:hover{
  box-shadow:0 8px 24px rgba(30,34,38,.08); transform:translateY(-2px);
}
.cat-card:hover{
  box-shadow:0 8px 20px rgba(30,34,38,.07); transform:translateY(-2px);
}

.btn-hero, .btn-cta, .btn-primary, .btn-outline{
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-hero:hover, .btn-cta:hover, .btn-primary:hover:not(:disabled){
  transform:translateY(-1px); box-shadow:0 6px 16px rgba(168,124,79,.35);
}
.btn-outline:hover{ transform:translateY(-1px); }

/* ---------- Accessibilité : focus visible ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--bronze); outline-offset:2px;
}

/* ---------- Apparition douce au defilement ---------- */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .5s ease, transform .5s ease; }
.reveal.in-view{ opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}

/* ---------- Chip / process refinements ---------- */
.process-step{ transition:transform .18s ease; }
.process-step:hover{ transform:translateY(-2px); }