/* Header sticky transparent au depart, opaque au scroll */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  height:var(--header-h);
  z-index:var(--z-header);
  display:flex;
  align-items:center;
  transition:background .4s var(--ease), backdrop-filter .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-light{
  background:rgba(239,242,236,.86);
  backdrop-filter:saturate(150%) blur(12px);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  border-bottom-color:var(--border-soft);
}
.site-header.is-scrolled{
  background:rgba(239,242,236,.94);
  backdrop-filter:saturate(150%) blur(14px);
  -webkit-backdrop-filter:saturate(150%) blur(14px);
  border-bottom-color:var(--border);
  box-shadow:var(--sh-1);
}
.header-inner{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--on-dark);
  transition:color .4s var(--ease);
}
.site-header.is-light .logo,
.site-header.is-scrolled .logo{color:var(--text)}
.logo-mark{
  width:44px;height:44px;flex:none;
  display:block;
}
.logo-text{
  font-family:var(--ff-display);
  font-size:1.35rem;
  font-weight:600;
  letter-spacing:.005em;
  line-height:1;
  display:flex;
  flex-direction:column;
  gap:3px;
}
.logo-text small{
  font-family:var(--ff-ui);
  font-size:.62rem;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  opacity:.7;
}

/* Nav desktop */
.nav-desktop{display:none;align-items:center;gap:32px}
.nav-desktop a{
  font-size:.92rem;
  font-weight:500;
  color:inherit;
  position:relative;
  padding:6px 2px;
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:0;right:100%;
  bottom:0;
  height:1px;
  background:currentColor;
  transition:right .35s var(--ease);
}
.nav-desktop a:hover::after{right:0}

.header-cta{display:none;align-items:center;gap:10px}
.header-status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.78rem;
  font-weight:500;
}
.header-status .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--text-mute);
  box-shadow:0 0 0 3px rgba(122,133,127,.18);
}
.header-status.is-open .dot{background:#3a9c50;box-shadow:0 0 0 3px rgba(58,156,80,.18)}

@media (min-width:900px){
  .nav-desktop{display:flex}
  .header-cta{display:inline-flex}
}

/* Footer */
.site-footer{
  background:var(--accent-deep);
  color:var(--on-dark);
  padding:72px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(246,244,235,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(246,244,235,.025) 1px, transparent 1px);
  background-size:42px 42px;
  pointer-events:none;
}
.site-footer>*{position:relative}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  margin-bottom:48px;
}
.footer-col h4{color:var(--on-dark);margin-bottom:18px;font-size:.78rem;letter-spacing:.22em}
.footer-col p,.footer-col li,.footer-col a{color:var(--on-dark-2);font-size:.95rem}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-col a:hover{color:var(--on-dark)}
.footer-brand-block .footer-baseline{font-family:var(--ff-display);font-size:1.5rem;color:var(--on-dark);margin-bottom:12px;line-height:1.2}
.footer-bottom{
  border-top:1px solid rgba(246,244,235,.14);
  padding-top:24px;
  display:flex;flex-direction:column;gap:12px;
  font-size:.82rem;color:var(--on-dark-mute);
}
.footer-bottom a{color:var(--on-dark-2);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--on-dark)}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}
}