body {
    font-family: 'Inter', sans-serif;
    background-color: #F7FAFC;
    color: #2D3748;
}
.nav-link {
    transition: color 0.3s ease;
}
.skill-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}
.chart-container {
    position: relative;
    width: 100%;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    height: 300px;
    max-height: 350px;
}
@media (min-width: 768px) {
    .chart-container {
        height: 350px;
    }
}