/* Reset minimal */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}


.site-logo img {
  display: block;
  height: 48px;            /* ajuste selon ton logo */
  width: auto;
}

.site-logo:hover,
.site-logo:focus-visible {
  transform: scale(1.05);
  opacity: 0.9;
  outline: none;
}

@media (max-width: 900px) {
  .site-logo {
    top: 1rem;
    left: 1rem;
  }
  .site-logo img {
    height: 36px;
  }
}
html,
body {
  height: 100%;
  overflow: hidden; /* la landing reste plein écran ; retire si tu ajoutes du scroll plus tard */
  background: #000; /* fallback avant chargement de la vidéo */
}

body {
  font-family: 'Orbitron', sans-serif;
  color: #fff;
}

/* Fond plein écran (vidéo) */
.video-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
/* Navigation */
.main-nav {
  position: relative;
  width: 100%;
  padding: 2.5rem 4rem;
}

.main-nav ul {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 6px;
  text-decoration-thickness: 2px;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: opacity 0.2s ease, text-shadow 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  opacity: 0.85;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
  outline: none;
}

/* Responsive */
@media (max-width: 900px) {
  .main-nav {
    padding: 1.5rem 1.5rem;
  }
  .main-nav ul {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .main-nav a {
    font-size: 1rem;
  }
}
/* ============ Burger (caché en desktop) ============ */
.burger {
  display: none;             /* visible uniquement en mobile */
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 200;              /* au-dessus du logo et du menu */
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
  transform-origin: center;
}

/* Animation en croix quand le menu est ouvert */
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* ============ Adaptations mobile ============ */
@media (max-width: 1500px) {
  .burger {
    display: flex;            /* on affiche le burger */
  }

  /* Le menu devient un panneau qui descend depuis le haut */
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    padding: 5rem 2rem 3rem;
    background: rgba(28, 24, 24, 0.98);   /* fond opaque sombre */
    backdrop-filter: blur(8px);
    z-index: 150;                         /* au-dessus du contenu, en-dessous du burger */
    transform: translateY(-100%);         /* caché : remonté au-dessus de l'écran */
    transition: transform 0.4s ease;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  }

  .main-nav.is-open {
    transform: translateY(0);             /* visible */
  }

  /* Les liens s'empilent verticalement */
  .main-nav ul {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .main-nav a {
    font-size: 1.5rem;        /* on garde une taille lisible */
  }
}