body {
    background: radial-gradient(circle at center, #0a0a0f, #000);
    color: #ddd;
    font-family: 'Orbitron', sans-serif;
    text-align: center;
}

h1 {
    color: #ff0033;
    text-shadow: 0 0 15px #ff0055;
    margin-bottom: 40px;
}

.arbre-container {
    display: flex;
    justify-content: center;
    overflow-x: auto;
    padding: 20px;
}

ul {
    position: relative;
    padding-top: 20px;
    transition: all 0.5s;
}

ul ul::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    border-left: 2px solid #ff0044;
    height: 20px;
}

li {
    list-style-type: none;
    text-align: center;
    position: relative;
    padding: 20px 5px 0 5px;
    display: inline-block;
    vertical-align: top;
}

li::before, li::after {
    content: '';
    position: absolute;
    top: 0;
    border-top: 2px solid #ff0044;
    width: 50%;
    height: 20px;
}

li::before {
    right: 50%;
    border-right: 2px solid #ff0044;
}

li::after {
    left: 50%;
    border-left: 2px solid #ff0044;
}

li:only-child::before, li:only-child::after {
    display: none;
}

.noeud {
    background: rgba(25, 25, 35, 0.8);
    border: 1px solid #ff0044;
    border-radius: 12px;
    padding: 10px;
    width: 230px;
    margin: 0 auto;
    box-shadow: 0 0 15px #ff0044;
    transition: transform 0.3s;
}

.noeud:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px #ff3388;
}

.noeud img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 8px;
    filter: grayscale(80%) brightness(1.1);
}

.info p {
    font-size: 0.85em;
    margin: 4px 0;
}

.commentaires {
    font-style: italic;
    color: #aaa;
    margin-top: 6px;
}
.hidden {
    display: none;
}