body {
        margin: 0;
        min-height: 100vh;
        font-family: 'Segoe UI', sans-serif;
        font-weight: normal!important;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        position: relative;
        color: #003369;
        background: radial-gradient(circle at 30% 30%, #0055A4 0%, #001f3d 70%),
                    radial-gradient(circle at 70% 70%, #0072bc 0%, #001f3d 70%);
        background-size: cover;
        z-index: 0;
    }

  /* Conteneur des étoiles */
  .stars {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
  }
  .star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: twinkle 4s infinite alternate;
  }
  @keyframes twinkle {
    0% { opacity: 0.2; transform: scale(0.5); }
    50% { opacity: 1; transform: scale(1.2); }
    100% { opacity: 0.2; transform: scale(0.5); }
  }

  /* Nébulosités animées */
  .nebula {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,200,255,0.2), transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    animation: moveNebula 40s linear infinite alternate;
    z-index: 0;
  }
  @keyframes moveNebula {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, -30px) scale(1.2); }
    100% { transform: translate(0, 0) scale(1); }
  }

  .content {
    position: relative; 
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-bottom: 40px;
  }

  .box {
    position: relative;
    background: linear-gradient(135deg, rgba(255,255,255,0.55), rgba(245,245,245,0.65));
    backdrop-filter: blur(12px);
    border-radius: 15px;
    padding: 20px;
    min-width: 300px;
    max-width: 350px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    overflow: hidden;
    animation: boxGradient 10s ease infinite alternate;
  }
  @keyframes boxGradient {
    0% { background: linear-gradient(135deg, rgba(255,255,255,0.85), rgba(245,245,245,0.65)); }
    50% { background: linear-gradient(135deg, rgba(250,250,250,0.85), rgba(230,230,230,0.65)); }
    100% { background: linear-gradient(135deg, rgba(255,255,255,0.85), rgba(245,245,245,0.65)); }
  }
  .box:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 35px rgba(0,0,0,0.4);
  }

  .carousel {
    position: relative;
    width: 100%;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.8);
  }
  .carousel::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    pointer-events: none;
    z-index: 2;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.8);
  }
  .carousel img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    top: 0;
    left: 0;
    opacity: 0;
    animation: slide 12s linear infinite;
    border-radius: 12px;
    z-index: 1;
  }
  .carousel img:nth-child(1) { animation-delay: 0s; }
  .carousel img:nth-child(2) { animation-delay: 4s; }
  .carousel img:nth-child(3) { animation-delay: 8s; }
  @keyframes slide {
    0% { opacity: 0; transform: scale(1); }
    8% { opacity: 1; transform: scale(1); }
    33% { opacity: 1; transform: scale(1); }
    41% { opacity: 0; transform: scale(1); }
    100% { opacity: 0; transform: scale(1); }
  }

  .box-header .logo { height: 40px; width: auto; }

  .box p { color: #003369; margin-bottom: 15px; }

  .box button {
    background-color: #003369;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
  }
  .box button:hover {
    background-color: #0055a5;
    transform: scale(1.05);
  }

  footer {
    width: 100%;
    text-align: center;
    padding: 15px 0;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    background-color: rgba(0,0,0,0.1);
    backdrop-filter: blur(8px);
    position: relative;
    z-index: 1;
  }

  @media (max-width: 800px) {
    .content { flex-direction: column; gap: 20px; }
    .box { width: 80%; padding: 20px; }
  }