/* layout.css — header, nav, menu mobile, footer */

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:var(--z-header);
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:saturate(1.2) blur(8px);
  -webkit-backdrop-filter:saturate(1.2) blur(8px);
  height:var(--header-h-mobile);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:border-color var(--t-fast),background var(--t-fast);
}
.site-header.is-scrolled{
  border-bottom-color:var(--border);
  background:color-mix(in srgb,var(--bg) 96%,transparent);
}
.site-header__inner{
  width:100%;max-width:var(--container);
  margin:0 auto;padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}

.brand{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--text);
}
.brand-mark{
  width:40px;height:40px;border-radius:50%;
  background:color-mix(in srgb,var(--accent) 14%,var(--bg));
  display:grid;place-items:center;
  color:var(--accent);
  flex-shrink:0;
}
.brand-mark svg{width:24px;height:24px;display:block;}
.brand-name{
  font-family:var(--ff-display);
  font-weight:600;
  font-size:1.12rem;
  line-height:1;
  letter-spacing:-.005em;
}
.brand-name em{font-style:italic;color:var(--accent);}
.brand-tag{
  display:none;
}
@media (min-width:1024px){
  .brand-tag{
    display:block;
    font-family:var(--ff-body);
    font-size:.7rem;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:var(--text-mute);
    margin-top:4px;
  }
}

/* NAV DESKTOP */
.nav-desktop{display:none;align-items:center;gap:28px;}
.nav-desktop a{
  font-family:var(--ff-body);
  font-size:.95rem;
  font-weight:500;
  color:var(--text);
  position:relative;
  padding:6px 0;
}
.nav-desktop a:hover{color:var(--accent);}
.nav-desktop a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1.5px;background:var(--accent);
  transition:width var(--t-fast);
}
.nav-desktop a:hover::after,.nav-desktop a[aria-current]::after{width:100%;}

.header-cta{display:none !important;}
@media (min-width:768px){
  .site-header{height:var(--header-h);}
  .nav-desktop{display:flex;}
  .header-cta{display:inline-flex !important;}
}

/* BURGER (fixed, top-right, child of body) */
.burger{
  position:fixed;
  top:calc((var(--header-h-mobile) - 44px) / 2);
  right:14px;
  width:44px;height:44px;
  display:grid;place-items:center;
  background:transparent;border:0;cursor:pointer;
  z-index:var(--z-burger);
}
.burger span,
.burger span::before,
.burger span::after{
  content:"";
  display:block;
  width:22px;height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform var(--t-fast),top var(--t-fast),background var(--t-fast);
  position:relative;
}
.burger span{margin:0;}
.burger span::before{position:absolute;top:-7px;left:0;}
.burger span::after{position:absolute;top:7px;left:0;}
.burger.is-open span{background:transparent;}
.burger.is-open span::before{top:0;transform:rotate(45deg);}
.burger.is-open span::after{top:0;transform:rotate(-45deg);}
@media (min-width:768px){.burger{display:none;}}

/* MENU MOBILE (enfant direct du body, fixed full-screen) */
.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) 28px 40px;
  display:flex;flex-direction:column;gap:16px;
  overflow-y:auto;-webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;
  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::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(color-mix(in srgb,var(--text) 9%,transparent) 1px,transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
  opacity:.45;
}
.menu-mobile a{
  position:relative;
  font-family:var(--ff-display);
  font-size:1.6rem;
  font-weight:500;
  color:var(--text);
  padding:10px 0;
  border-bottom:1px solid var(--border);
}
.menu-mobile a:last-child{border-bottom:0;}
.menu-mobile .btn{
  font-family:var(--ff-body);
  font-size:1rem;
  border-bottom:0;
  margin-top:14px;
  width:100%;
  justify-content:center;
}
.menu-mobile .btn-wa{
  background:#fff !important;
  color:var(--surface-deep) !important;
  border-color:var(--surface-deep) !important;
}
.menu-mobile .btn-primary{
  background:var(--accent) !important;
  color:#fff !important;
  border-color:var(--accent) !important;
}

@media (min-width:768px){.menu-mobile{display:none;}}

/* FOOTER */
.site-footer{
  background:var(--surface-deep);
  color:var(--text-on-dark);
  padding:56px 0 24px;
  margin-top:0;
}
.site-footer :where(h1,h2,h3,h4,p,li,span,a,strong,small){color:inherit;}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding-bottom:32px;
  border-bottom:1px solid rgba(241,246,242,.18);
}
@media (min-width:720px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:48px;}
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-name em{color:var(--accent-on-dark);}
.footer-brand .brand-tag{color:var(--text-on-dark-2);}
.footer-brand p{color:var(--text-on-dark-2);font-size:.92rem;margin-top:14px;max-width:38ch;}
.footer-col h4{
  font-family:var(--ff-display);
  font-size:1.1rem;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.005em;
}
.footer-col ul li{margin-bottom:8px;font-size:.92rem;color:var(--text-on-dark-2);}
.footer-col ul li a{color:var(--text-on-dark);}
.footer-col ul li a:hover{color:var(--accent-on-dark);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:24px;
  font-size:.84rem;
  color:var(--text-on-dark-2);
}
.footer-bottom a{color:var(--text-on-dark-2);}
.footer-bottom a:hover{color:#fff;}