html, body {
    font-size: 14px;
    height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 15px;
    }
}

#sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

#sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 0.375rem;
}

#sidebar .nav-link.active {
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 0.375rem;
}

.card-stat {
    transition: box-shadow 0.2s;
}

.card-stat:hover {
    box-shadow: 0 0.25rem 0.75rem rgba(0,0,0,0.1);
}

.table th {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #6c757d;
}

.btn:focus, .btn:active:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.15rem rgba(37, 140, 251, 0.3);
}