body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: Arial, sans-serif;
}

#renderCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.icon-circle {
    position: absolute;
    top: 0;
    left: 0;
}

.icon-circle .icon {
    position: absolute;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s, background 0.3s;
    cursor: pointer;
}

.icon-circle .icon:hover {
    background: #ff9800;
    transform: scale(1.3);
}

/* Modal */
.modal {
    display: none;
    position: absolute;
    z-index: 10;
    left: 50%;
    top: 10%;
    transform: translateX(-50%);
    width: 300px;
    background-color: rgba(255,255,255,0.95);
    border-radius: 10px;
    padding: 15px 20px;
    text-align: left;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* Canvas modal */
#skillsChart {
    height: 200px !important;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .icon-circle .icon {
        width: 60px;
        height: 60px;
    }
}