.molecular-icon {
    width: 80px;
    height: 80px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.helix-structure {
    position: absolute;
    width: 100%;
    height: 100%;
}

.helix-strand {
    position: absolute;
    width: 3px;
    background: linear-gradient(45deg, #dc2626, #573d2a);
    border-radius: 2px;
    transform-origin: center;
}

.helix-strand-1 {
    height: 60px;
    top: 10px;
    left: 20px;
    transform: rotate(15deg);
    animation: rotate1 4s infinite ease-in-out;
}

.helix-strand-2 {
    height: 50px;
    top: 20px;
    right: 20px;
    transform: rotate(-15deg);
    animation: rotate2 4s infinite ease-in-out;
}

.helix-strand-3 {
    height: 40px;
    bottom: 15px;
    left: 30px;
    transform: rotate(45deg);
    animation: rotate3 4s infinite ease-in-out;
}

.molecular-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #dc2626;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(220, 38, 38, 0.5);
}

.node-1 { top: 15px; left: 25px; animation: pulse 2s infinite; }
.node-2 { top: 25px; right: 15px; animation: pulse 2s 0.5s infinite; }
.node-3 { bottom: 20px; left: 35px; animation: pulse 2s 1s infinite; }
.node-4 { top: 45px; left: 45px; animation: pulse 2s 1.5s infinite; }

@keyframes rotate1 {
    0%, 100% { transform: rotate(15deg); }
    50% { transform: rotate(25deg); }
}

@keyframes rotate2 {
    0%, 100% { transform: rotate(-15deg); }
    50% { transform: rotate(-25deg); }
}

@keyframes rotate3 {
    0%, 100% { transform: rotate(45deg); }
    50% { transform: rotate(35deg); }
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 0 10px rgba(220, 38, 38, 0.5);
    }
    50% { 
        transform: scale(1.3); 
        box-shadow: 0 0 20px rgba(220, 38, 38, 0.8);
    }
}