/* =====================================================================
   SITE.CSS — design system commun La Cisaille
   =====================================================================
   Variables de marque + nav/footer + composants de base (boutons, cards,
   bande de stats). Une seule source pour que les ~30 pages du site
   restent visuellement cohérentes. Le mode sombre est le seul mode —
   pas de variante claire pour l'instant (décision : palette du mockup
   "Sur mesure" appliquée à tout le site).
========================================================================= */

:root{
  --bg: #0a0e14;
  --bg-panel: #12161d;
  --bg-panel-2: #1a1f28;
  --line: rgba(255,255,255,0.10);

  --copper: #d97a2e;
  --copper-light: #e8934f;
  --blue-accent: #3b82f6;

  --text: #f4f1ec;
  --text-muted: #9aa1ac;

  --radius: 10px;
  --maxw: 1240px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html, body{overflow-x:hidden;}
body{
  margin:0;
  font-family: "Inter", Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}

.container{max-width:var(--maxw); margin:0 auto; padding:0 24px;}

/* ---------- Header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
  padding:0 24px;
  background:rgba(10,14,20,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header__logo{display:flex; flex-direction:column; line-height:1;}
.site-header__logo-main{font-family:Georgia, serif; font-size:22px; font-weight:700;}
.site-header__logo-sub{
  margin-top:4px; font-size:10px; letter-spacing:2px; color:var(--copper);
  text-transform:uppercase;
}

.site-nav{display:flex; align-items:center; gap:32px;}
.site-nav__link{
  font-size:13px; letter-spacing:0.5px; text-transform:uppercase;
  color:var(--text); opacity:0.85; position:relative; padding:8px 0;
}
.site-nav__link:hover{opacity:1; color:var(--copper-light);}

.site-nav__item{position:relative;}
.site-nav__dropdown{
  position:absolute; top:100%; left:50%; transform:translateX(-50%);
  min-width:240px; margin-top:10px;
  background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius);
  padding:10px; display:none; flex-direction:column; gap:2px;
  box-shadow:0 20px 40px rgba(0,0,0,0.5);
}
.site-nav__item:hover .site-nav__dropdown,
.site-nav__item:focus-within .site-nav__dropdown{display:flex;}
.site-nav__dropdown a{
  padding:9px 12px; border-radius:6px; font-size:13px; color:var(--text-muted);
  white-space:nowrap;
}
.site-nav__dropdown a:hover{background:var(--bg-panel-2); color:var(--text);}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:700; letter-spacing:0.5px; text-transform:uppercase;
  padding:12px 20px; border-radius:8px; border:1px solid transparent;
  cursor:pointer;
}
.btn-copper{background:var(--copper); color:#0a0e14;}
.btn-copper:hover{background:var(--copper-light);}
.btn-outline{border-color:var(--line); color:var(--text);}
.btn-outline:hover{border-color:var(--blue-accent); color:var(--blue-accent);}

.nav-toggle{
  display:none; background:none; border:none; color:var(--text);
  width:40px; height:40px; cursor:pointer;
}

/* ---------- Hero ---------- */
.hero{
  position:relative; padding:100px 24px 80px; overflow:hidden;
  background:
    radial-gradient(circle at 15% 20%, rgba(217,122,46,0.14), transparent 35%),
    radial-gradient(circle at 85% 10%, rgba(59,130,246,0.14), transparent 35%),
    var(--bg);
}
.hero__inner{max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:1.1fr 0.9fr; gap:48px; align-items:center;}
.hero__kicker{color:var(--copper); font-size:13px; letter-spacing:2px; text-transform:uppercase; margin-bottom:16px;}
.hero__title{font-size:clamp(38px,5.5vw,64px); font-weight:800; line-height:1.05; margin:0 0 20px;}
.hero__title em{font-style:italic; color:var(--copper-light); font-family:Georgia, serif;}
.hero__subtitle{font-size:17px; color:var(--text-muted); max-width:46ch; margin:0 0 32px;}
.hero__actions{display:flex; gap:14px; flex-wrap:wrap;}
.hero__visual{border-radius:var(--radius); overflow:hidden; border:1px solid var(--line);}

/* ---------- Stats band ---------- */
.stats{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:var(--bg-panel);
}
.stats__grid{
  max-width:var(--maxw); margin:0 auto; padding:40px 24px;
  display:grid; grid-template-columns:repeat(5,1fr); gap:24px; text-align:center;
}
.stats__num{font-size:clamp(22px,2.4vw,32px); font-weight:800; color:var(--copper-light);}
.stats__label{font-size:12px; color:var(--text-muted); margin-top:6px; letter-spacing:0.3px;}

/* ---------- Section shell ---------- */
.section{padding:80px 24px;}
.section__head{max-width:640px; margin:0 auto 48px; text-align:center;}
.section__kicker{color:var(--blue-accent); font-size:12px; letter-spacing:2px; text-transform:uppercase; margin-bottom:12px;}
.section__title{font-size:clamp(26px,3.5vw,38px); font-weight:800; margin:0;}
.section__lead{color:var(--text-muted); margin-top:14px; font-size:15.5px;}

/* ---------- Cards / grid ---------- */
.grid{max-width:var(--maxw); margin:0 auto; display:grid; gap:20px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-6{grid-template-columns:repeat(6,1fr);}
.contact-grid{grid-template-columns:1fr 1.3fr;}

.card{
  background:var(--bg-panel); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px; transition:border-color .2s, transform .2s;
}
.card:hover{border-color:var(--copper); transform:translateY(-2px);}
.card__icon{width:38px; height:38px; color:var(--blue-accent); margin-bottom:16px;}
.card__title{font-size:16px; font-weight:700; margin:0 0 8px;}
.card__text{font-size:13.5px; color:var(--text-muted); line-height:1.5; margin:0;}

/* ---------- CTA banner ---------- */
.cta-banner{
  max-width:var(--maxw); margin:0 auto; border-radius:16px;
  background:linear-gradient(120deg, rgba(217,122,46,0.16), rgba(59,130,246,0.10));
  border:1px solid var(--line);
  padding:48px; display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.cta-banner__title{font-size:22px; font-weight:800; margin:0 0 6px;}
.cta-banner__text{color:var(--text-muted); margin:0; font-size:14px;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line); padding:56px 24px 28px; background:var(--bg-panel);}
.site-footer__grid{max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;}
.site-footer h4{font-size:12px; letter-spacing:1px; text-transform:uppercase; color:var(--text-muted); margin:0 0 14px;}
.site-footer a{display:block; font-size:13.5px; color:var(--text); opacity:0.85; margin-bottom:10px;}
.site-footer a:hover{opacity:1; color:var(--copper-light);}
.site-footer__bottom{
  max-width:var(--maxw); margin:32px auto 0; padding-top:24px; border-top:1px solid var(--line);
  font-size:12px; color:var(--text-muted); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
}

/* ---------- Mobile ---------- */
@media (max-width: 900px){
  .site-nav{
    position:fixed; top:76px; left:0; right:0; height:calc(100vh - 76px);
    background:var(--bg);
    flex-direction:column; align-items:stretch; gap:0; padding:12px;
    transform:translateX(100%); transition:transform .25s ease; overflow-y:auto;
  }
  .site-nav.is-open{transform:translateX(0);}
  .site-nav__link{padding:16px 8px; border-bottom:1px solid var(--line);}
  .site-nav__dropdown{
    position:static; transform:none; display:none; margin:0 0 8px; border:none;
    background:var(--bg-panel-2); box-shadow:none;
  }
  .site-nav__item.is-open .site-nav__dropdown{display:flex;}
  .nav-toggle{display:block;}
  .hero__inner{grid-template-columns:1fr;}
  .hero{padding:48px 20px 56px;}
  .stats__grid{grid-template-columns:repeat(2,1fr);}
  .grid-3, .grid-4, .grid-6{grid-template-columns:1fr 1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .section{padding:56px 20px;}
  .site-footer__grid{grid-template-columns:1fr 1fr;}
}
@media (max-width: 520px){
  .grid-3, .grid-4, .grid-6{grid-template-columns:1fr;}
  .stats__grid{grid-template-columns:1fr 1fr;}
}