/* Burger + overlay (styles de base du header dans common.css) */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--border-color, rgba(255,255,255,0.25));
  border-radius: 10px;
  background: rgba(0,0,0,0.2);
  cursor: pointer;
  z-index: 2;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary, #fff);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

body.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
body.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    top: 56px;
    background: rgba(0,0,0,0.45);
    z-index: 5000;
    border: 0;
    padding: 0;
    margin: 0;
    width: 100%;
    height: calc(100% - 56px);
  }

  .nav-backdrop[hidden] {
    display: none !important;
  }

  body.nav-open {
    overflow: hidden;
  }
}