/* =========================================================
   HEADER FIXE
========================================================= */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: white;
  color: black;
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

#site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 20px;
}

.logo-accueil {
  height: 40px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}
.brand-link:hover {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* =========================================================
   NAVIGATION
========================================================= */
nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Menu header = même typo que les titres */
#site-header nav a {
  font-family: 'Martian Mono', monospace;
  font-weight: bold;
}

#site-header nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  font-size: 0; /* ← empêche les espaces résiduels entre les éléments inline-flex */
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
}

#site-header nav ul li {
  font-size: 1rem; /* ← on remet une taille de police ici */
  display: flex;
  align-items: center;
}


#site-header nav a {
  position: relative;
  text-decoration: none;
  color: black;
  font-weight: 300;
  transition: color 0.3s ease;
}

#site-header nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: black;
  transition: width 0.3s ease;
}

#site-header nav a:hover::after,
.nav-links a.active-section::after {
  width: 100%;
}

/* --- Indicateur section courante --- */
#site-header:not(.scrolled) .nav-links a.active-section {
  color: white !important;
  background: black;
  padding: 4px 8px;
}

#site-header.scrolled .nav-links a.active-section {
  color: black !important;
  background: white;
  padding: 4px 8px;
}

/* =========================================================
   BURGER MENU
========================================================= */
.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  margin-left: auto;
}

.burger span {
  width: 25px;
  height: 2px;
  background: black;
  transition: all 0.3s ease;
}

.burger.open span:nth-child(1) {
  transform: rotate(45deg) translateY(11px);
}
.burger.open span:nth-child(2) {
  opacity: 0;
}
.burger.open span:nth-child(3) {
  transform: rotate(-45deg) translateY(-11px);
}
.burger.open span {
  background: blaxk;
}

/* =========================================================
   NAVIGATION MOBILE
========================================================= */
.nav-links {
  align-items: center;
  text-align: center;
}

@media (max-width: 768px) {
  .burger { display: flex; z-index: 1001; }

  .nav-links {
    position: absolute;
    top: 50px;
    left: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: black;
    flex-direction: column;
    align-items: center;
    padding: 60px 30px;
    row-gap: 50px;
    transform: translateY(-20%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  #site-header nav ul {
    padding-top: 20px;
    gap: 20px;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    color: white !important;
    font-size: 1.4rem;
    font-weight: 400;
  }

  .nav-links a:hover {
    background: white;
    color: black !important;
    padding: 4px 8px;
  }

  #site-header nav a.active-section::after {
    width: 100%;
  }

}

/* =========================================================
   MODE SCROLLED
========================================================= */
#site-header.scrolled {
  background: black;
  color: white;
}

#site-header.scrolled .brand-link,
#site-header.scrolled nav a {
  color: white;
}

#site-header.scrolled nav a::after {
  background: white;
}

#site-header.scrolled .logo-accueil {
  filter: brightness(0) invert(1);
}

#site-header.scrolled .burger span {
  background: white;
}


/* =========================================================
   • Points séparateurs entre liens du header (desktop)
========================================================= */

/* point noir après chaque <li>, sauf le dernier */
#site-header nav ul li:not(:last-child)::after {
  content: "•";
  margin: 0 8px;          /* espace autour du point */
  font-size: 1.2rem;
  line-height: 1;
  color: black;
}

/* même point, mais blanc quand le header est scrolled */
#site-header.scrolled nav ul li:not(:last-child)::after {
  color: white;
}

/* On retire les points dans le menu mobile */
@media (max-width: 768px) {
  #site-header nav ul li:not(:last-child)::after {
    display: none;
  }
}

/* =========================================================
   FOOTER (inversé)
========================================================= */
footer {
  background: black;
  color: white;
  text-align: center;
  padding: 30px 10px;
  font-size: 0.9rem;
}

footer nav {
  margin-top: 10px;
}

footer a {
  position: relative;
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: 300;
  transition: color 0.3s ease;
}

footer a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: white;
  transition: width 0.3s ease;
}

footer a:hover::after {
  width: 100%;
}