:root {
    --color-primary: #3fa9f5;
    --color-primary-dark: #3592d5;
    --color-secondary: #343A40;
    --color-background: #F9FAFB;
}
body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--color-background);
    color: var(--color-secondary);
}
.nav-button.active {
    color: var(--color-primary);
    border-color: var(--color-primary);
    font-weight: 600;
}
.sidebar {
    -ms-overflow-style: none;  /* Internet Explorer 10+ */
    scrollbar-width: none;  /* Firefox */
}
.sidebar::-webkit-scrollbar { 
    display: none;  /* Safari and Chrome */
}