html{
    font-family: sans-serif;
    background: #1f2937;
}
body {
    background: #FFF;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

#main-header {
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

#main-header.scrolled {
    background-color: rgba(17, 24, 39, 0.8);
}

.nav-link.active {
    color: #93c5fd;
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #93c5fd;
}

.chart-container {
    position: relative;
    height: 250px;
    width: 100%;
}

@media (min-width: 768px) {
    .chart-container {
        height: 300px;
    }
}

@media (min-width: 1024px) {
    .chart-container {
        height: 320px;
    }
}