:root {
    --bs-font-sans-serif: 'IBM Plex Sans Thai', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --bs-body-font-family: var(--bs-font-sans-serif);
}

body {
    font-family: 'IBM Plex Sans Thai', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

button,
input,
select,
textarea,
.form-control,
.form-select,
.btn {
    font-family: inherit;
}