/* --- CSS complet corrigé --- */

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #0f172a;
  color: white;
}

header {
  background-color: #1e293b;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 15px 30px;
  position: relative;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

.logo img {
  margin-right: 10px;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  position: relative;
}

nav a,
nav .dropdown-toggle {
  font-size: 1.1rem;
  padding: 10px 12px;
  font-weight: 600;
  color: white;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  background-color: transparent;
  border: none;
  outline: none;
}

nav a:hover,
nav .dropdown-toggle:hover {
  color: #4f46e5;
}

nav .dropdown {
  position: relative;
}

nav .dropdown-menu {
  display: none; /* caché par défaut */
  position: absolute;
  top: calc(100% - 20px);
  left: 0;
  background-color: #334155;
  padding: 10px;
  border-radius: 6px;
  min-width: 160px;
  z-index: 999;
  flex-direction: column;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

nav .dropdown-menu li {
  list-style: none;
}

nav .dropdown-menu a {
  display: block;
  padding: 6px 10px;
  color: white;
  text-decoration: none;
  white-space: nowrap;
  min-width: max-content;
}

nav .dropdown-menu a:hover {
  background-color: #4f46e5;
  border-radius: 4px;
}

.btn-primary {
  background-color: #4f46e5;
  border: none;
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  white-space: nowrap;
}

/* Animation flottante Hero */
.hero {
  position: relative;
  padding: 60px 20px;
  min-height: 300px;
  text-align: center;
}

.hero-text {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero span {
  color: #4f46e5;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  opacity: 0.9;
}

.hero img.animated-float {
  position: absolute;
  top: 50%;
  right: 40px;
  transform: translateY(-50%);
  max-width: 300px;
  border-radius: 12px;
  animation: floatUpDown 4s ease-in-out infinite;
  z-index: 0;
}

@keyframes floatUpDown {
  0%   { transform: translateY(0); }
  50%  { transform: translateY(-20px); }
  100% { transform: translateY(0); }
}

section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #1e293b;
  color: #ccc;
  font-size: 0.9rem;
  margin-top: 60px;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  max-width: 1000px;
  margin: auto;
}

.card {
  flex: 1 1 250px;
  background: #1e293b;
  padding: 20px;
  border-radius: 12px;
}

.stats div {
  flex: 1 1 200px;
}

/* --- Responsive Mobile --- */

@media (max-width: 768px) {
  header {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    padding: 15px 15px;
    gap: 10px;
  }

  nav {
    display: none;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    align-items: center;
    background-color: #1e293b;
    padding: 10px 0;
  }

  nav.active {
    display: flex;
  }

  nav a,
  nav .dropdown-toggle {
    padding: 12px 20px;
    font-size: 1rem;
    width: 100%;
    text-align: center;
    cursor: pointer;
  }

  nav .dropdown-menu {
    position: static !important;
    display: none;
    background-color: #334155;
    padding: 8px 15px;
    border-radius: 6px;
    box-shadow: none;
    width: 100%;
    flex-direction: column;
    z-index: 5;
  }

  nav .dropdown-menu.active {
    display: flex !important;
  }

  nav .dropdown-menu a {
    padding: 8px 15px;
    width: 100%;
  }

  .btn-primary {
    width: 100%;
    max-width: 320px;
    padding: 12px 0;
  }

  .hero {
    padding: 40px 10px;
    min-height: auto;
  }

  .hero img.animated-float {
    display: none;
  }

  .hamburger {
    display: block;
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    z-index: 1000;
  }
}

/* Desktop dropdown hover & focus */

@media (min-width: 769px) {
  nav .dropdown:hover .dropdown-menu,
  nav .dropdown-toggle:focus + .dropdown-menu {
    display: flex !important;
  }
  .hamburger {
    display: none;
  }
}

/* Focus style for accessibility */
nav .dropdown-toggle:focus {
  box-shadow: 0 0 5px 2px #4f46e5;
  border-radius: 4px;
  outline: none;
}