/* =========================================================
   AXELLE DIGITAL — BASE.CSS
   Variables, reset, typographie, structure header/footer.
   Chargé en premier. Les blocs (hero, rubrique, etc.) ne
   redéfinissent jamais ces variables, ils les consomment.
   ========================================================= */

:root{
  --ink:#182620;
  --ink-soft:#33443c;
  --paper:#F3F1E9;
  --paper-2:#E8E4D6;
  --paper-3:#DCD6C3;
  --brass:#8C6A3F;
  --brass-dark:#6B4F2E;
  --copper:#B4633A;
  --line:#c9c2ac;
  --line-soft:#dcd7c7;
  --max:1160px;
}

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

body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,.serif{
  font-family:'Fraunces', serif;
  font-weight:500;
  color:var(--ink);
  line-height:1.15;
}

a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 32px;}

.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:11px;
  letter-spacing:0.09em;
  text-transform:uppercase;
  color:var(--brass-dark);
  font-weight:500;
}

/* ---------- HEADER ---------- */
.site-header{
  border-bottom:1px solid var(--line);
  background:var(--paper);
  position:relative;
  z-index:10;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 0;
  gap:24px;
}
.logo{
  font-family:'Fraunces', serif;
  font-size:22px;
  font-weight:600;
  white-space:nowrap;
}
.logo span{color:var(--copper); font-style:italic; font-weight:400;}
.main-nav{display:flex; gap:28px; flex-wrap:wrap;}
.main-nav ul{list-style:none; display:flex; gap:28px; flex-wrap:wrap;}
.main-nav a{
  font-size:13px;
  font-weight:500;
  letter-spacing:0.01em;
  color:var(--ink-soft);
  border-bottom:1px solid transparent;
  padding-bottom:3px;
  transition:border-color .15s, color .15s;
}
.main-nav a:hover{color:var(--ink); border-color:var(--copper);}
.header-actions{display:flex; align-items:center; gap:16px; flex-shrink:0;}
.btn-brass{
  font-family:'IBM Plex Mono', monospace;
  font-size:11.5px;
  letter-spacing:0.05em;
  text-transform:uppercase;
  background:var(--ink);
  color:var(--paper);
  padding:10px 18px;
  border-radius:2px;
  white-space:nowrap;
  display:inline-block;
}
.btn-brass:hover{background:var(--brass-dark);}

/* ---------- FOOTER ---------- */
.site-footer{padding:56px 0 32px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-logo{
  font-family:'Fraunces', serif;
  font-size:20px;
  font-weight:600;
  margin-bottom:12px;
}
.footer-logo span{color:var(--copper); font-style:italic; font-weight:400;}
.footer-desc{font-size:13px; color:var(--ink-soft); max-width:32ch;}
.footer-col h4{
  font-family:'IBM Plex Mono', monospace;
  font-size:11px;
  letter-spacing:0.07em;
  text-transform:uppercase;
  color:var(--brass-dark);
  margin-bottom:16px;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:13.5px; color:var(--ink-soft);}
.footer-col a:hover{color:var(--ink);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:24px;
  font-size:12px;
  color:#8a8370;
  flex-wrap:wrap;
  gap:12px;
}

/* ---------- MENU MOBILE (hamburger + panneau) ---------- */
.menu-toggle{
  display:none;
  background:none;
  border:1px solid var(--line);
  border-radius:2px;
  padding:9px 11px;
  cursor:pointer;
  line-height:0;
}
.menu-toggle .bar{
  display:block;
  width:19px;
  height:2px;
  background:var(--ink);
  margin:4px 0;
  transition:transform .2s ease, opacity .2s ease;
}
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){ opacity:0; }
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ---------- RESPONSIVE : CHROME UNIQUEMENT ---------- */
@media (max-width:900px){
  .menu-toggle{ display:inline-block; }

  .main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    box-shadow:0 12px 24px rgba(24,38,32,0.08);
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
    z-index:9;
  }
  .main-nav.is-open{
    max-height:80vh;
    overflow-y:auto;
  }
  .main-nav ul{
    flex-direction:column;
    gap:0;
    padding:8px 20px 20px;
  }
  .main-nav li{
    border-bottom:1px solid var(--line-soft);
  }
  .main-nav a{
    display:block;
    padding:14px 4px;
    font-size:14.5px;
  }

  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:600px){
  .wrap{ padding:0 20px; }
  .header-inner{ padding:16px 0; }
  .footer-grid{ grid-template-columns:1fr; }
}