/* layout.css : header, nav, footer, FAB */
/* TEX-2 Grain fin */
body{position:relative;}
body::before{
  content:"";
  position:fixed;inset:0;z-index:0;
  pointer-events:none;
  opacity:.045;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body > *{position:relative;z-index:1;}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:var(--z-header);
  background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:saturate(150%) blur(8px);
  -webkit-backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.site-header.is-scrolled{
  border-color:var(--border);
  box-shadow:0 1px 8px rgba(42,32,24,.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h-mobile);
  max-width:var(--container);margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){
  .header-inner{height:var(--header-h);padding:0 40px;}
}

/* Brand : picto SVG metier + nom display */
.brand{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--text);
}
.brand-mark{
  width:36px;height:36px;
  flex-shrink:0;
  display:grid;place-items:center;
  background:color-mix(in srgb,var(--accent) 12%,var(--bg));
  border-radius:50%;
  color:var(--accent);
  padding:7px;
}
.brand-mark svg{width:100%;height:100%;}
.brand-text{display:flex;flex-direction:column;line-height:1;}
.brand-name{
  font-family:var(--ff-display);
  font-weight:500;
  font-size:1.16rem;
  letter-spacing:-.005em;
  color:var(--text);
}
.brand-name em{font-style:italic;color:var(--accent);}
.brand-tag{
  font-family:var(--ff-ui);
  font-size:.62rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-mute);
  margin-top:3px;
}

/* Nav desktop */
.nav-desk{display:none;}
@media (min-width:900px){
  .nav-desk{display:flex;align-items:center;gap:30px;}
  .nav-desk a{
    font-family:var(--ff-ui);
    font-size:.92rem;
    color:var(--text-2);
    font-weight:500;
    position:relative;
    padding:6px 0;
  }
  .nav-desk a:hover{color:var(--text);}
  .nav-desk a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;
    height:1.5px;background:var(--accent);
    transform:scaleX(0);transform-origin:left;
    transition:transform var(--t-med);
  }
  .nav-desk a:hover::after{transform:scaleX(1);}
}

/* Header CTA desktop */
.header-cta{display:none;}
@media (min-width:900px){
  .header-cta{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 18px;border-radius:999px;
    background:var(--accent);color:#fff;
    font-family:var(--ff-ui);font-size:.9rem;font-weight:600;
    transition:background var(--t-fast),transform var(--t-fast);
  }
  .header-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
  .header-cta svg{width:16px;height:16px;}
}

/* Burger (fixed top-right — PIEGE PROD #1 + #8) */
.burger{
  position:fixed;
  top:calc((var(--header-h-mobile) - 44px) / 2);
  right:16px;
  width:44px;height:44px;
  display:grid;place-items:center;
  background:color-mix(in srgb,var(--bg) 92%,transparent);
  border:1px solid var(--border);
  border-radius:50%;
  box-shadow:0 4px 14px rgba(42,32,24,.10);
  z-index:var(--z-burger);
  transition:background var(--t-fast),transform var(--t-fast);
}
.burger span,
.burger::before,
.burger::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  background:var(--text);
  border-radius:1px;
  transform:translate(-50%,-50%);
  transition:transform var(--t-med),opacity var(--t-fast);
}
.burger::before{transform:translate(-50%,calc(-50% - 6px));}
.burger::after{transform:translate(-50%,calc(-50% + 6px));}
.burger.is-open::before{transform:translate(-50%,-50%) rotate(45deg);}
.burger.is-open::after{transform:translate(-50%,-50%) rotate(-45deg);}
.burger.is-open span{opacity:0;}
@media (min-width:900px){.burger{display:none;}}

/* Menu mobile : enfant direct du body (PIEGE PROD #1) */
.menu-mobile{
  position:fixed;
  top:0;left:0;
  width:100%;
  height:100dvh;
  background:var(--bg);
  z-index:var(--z-menu);
  padding:calc(var(--header-h-mobile) + 24px) 24px 40px;
  display:flex;
  flex-direction:column;
  gap:.4rem;
  overflow-y:auto;
  overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform .35s ease,opacity .35s ease,visibility 0s linear .35s;
}
.menu-mobile.is-open{
  transform:translateY(0);
  opacity:1;
  visibility:visible;
  transition:transform .35s ease,opacity .35s ease;
}
.menu-mobile a{
  display:block;
  padding:14px 0;
  font-family:var(--ff-display);
  font-size:1.55rem;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.menu-mobile a.btn{
  border:0;
  margin-top:18px;
  padding:14px 22px;
  text-align:center;
  font-family:var(--ff-ui);
  font-size:1rem;
}
.menu-meta{
  margin-top:auto;
  padding-top:24px;
  font-family:var(--ff-ui);
  font-size:.85rem;
  color:var(--text-mute);
  display:flex;flex-direction:column;gap:6px;
}
.menu-meta strong{color:var(--text-2);font-weight:600;}
@media (min-width:900px){.menu-mobile{display:none;}}

/* Sections base */
section{padding:48px 0;position:relative;}
@media (min-width:768px){section{padding:88px 0;}}

.section-head{margin-bottom:32px;}
@media (min-width:768px){.section-head{margin-bottom:48px;}}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--ff-ui);
  font-size:.74rem;
  text-transform:uppercase;
  letter-spacing:.18em;
  color:var(--accent);
  font-weight:600;
  margin-bottom:14px;
}
.section-eyebrow::before{
  content:"";width:26px;height:1.5px;background:var(--accent);
}
.section-title{
  font-family:var(--ff-display);
  font-size:clamp(2rem,4.6vw,3.2rem);
  line-height:1.08;
  letter-spacing:-.005em;
  margin:0 0 12px;
}
.section-title em{font-style:italic;color:var(--accent);}
.section-intro{
  font-family:var(--ff-body);
  font-size:clamp(1rem,1.4vw,1.1rem);
  color:var(--text-2);
  max-width:54ch;
  margin:0;
}

/* Footer */
.site-footer{
  margin-top:0;
  background:var(--surface-deep);
  color:var(--text-on-dark);
  padding:56px 0 28px;
}
.site-footer :where(h1,h2,h3,h4,h5,h6,p,li,a,span,small,strong){color:var(--text-on-dark);}
.footer-grid{
  display:grid;
  gap:36px;
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;}
}
.footer-brand .brand-name{color:var(--text-on-dark);}
.footer-brand .brand-tag{color:var(--text-on-dark-2);}
.footer-brand .brand-mark{
  background:color-mix(in srgb,var(--accent) 32%,var(--surface-deep));
  color:var(--accent-soft);
}
.footer-tagline{
  font-family:var(--ff-body);
  font-size:.96rem;
  color:var(--text-on-dark-2);
  margin-top:14px;
  max-width:36ch;
}
.footer-h{
  font-family:var(--ff-display);
  font-size:1.15rem;
  margin-bottom:14px;
  color:var(--text-on-dark);
}
.footer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;}
.footer-list a,.footer-list li{
  font-family:var(--ff-ui);
  font-size:.93rem;
  color:var(--text-on-dark-2);
}
.footer-list a:hover{color:var(--text-on-dark);}
.footer-bottom{
  margin-top:34px;
  padding-top:20px;
  border-top:1px solid rgba(244,236,222,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;
  font-family:var(--ff-ui);
  font-size:.82rem;
  color:var(--text-on-dark-2);
}
.footer-bottom a{color:var(--text-on-dark-2);text-decoration:underline;text-decoration-color:rgba(244,236,222,.3);}
.footer-bottom a:hover{color:var(--text-on-dark);}

/* FAB mobile : Appeler */
.fab-call{
  position:fixed;
  bottom:18px;right:18px;
  width:56px;height:56px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  display:grid;place-items:center;
  box-shadow:0 10px 24px rgba(42,32,24,.25);
  z-index:var(--z-fab);
  transition:transform var(--t-fast),background var(--t-fast);
}
.fab-call:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.fab-call svg{width:24px;height:24px;}
@media (min-width:900px){.fab-call{display:none;}}