/* === Barre de navigation mobile style App === */
.navbar-bottom {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 500px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(200, 200, 200, 0.3);
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-around;
  padding: 6px 0 4px;
  z-index: 2000;
  transition: all 0.3s ease;
}
.navbar-bottom a {
  flex: 1;
  text-align: center;
  color: #555;
  text-decoration: none;
  font-size: 0.8rem;
  transition: all 0.2s ease-in-out;
}
.navbar-bottom a.active {
  color: #007bff;
  font-weight: 600;
  transform: translateY(-2px);
}
.navbar-bottom a i {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 2px;
  transition: transform 0.2s;
}
.navbar-bottom a.active i {
  transform: scale(1.15);
}
body {
  padding-bottom: 80px; /* évite que le footer cache le contenu */
}
@media (min-width: 600px) {
  .navbar-bottom {
    bottom: 20px;
    width: 70%;
  }
}