.capa-modulo-container {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, #0a0a0a, #030303);
    border: 2px solid #00ffcc;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}
.capa-modulo-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.capa-modulo-container:hover img {
    transform: scale(1.02);
}
.placeholder-img { text-align: center; }
.diamond-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 8px #00ffcc);
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.glitch-text {
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 3px;
    color: #fff;
}
.modulo-nivel-tag {
    margin-top: 12px;
    font-size: 0.7rem;
    color: #666;
}