(** Core CSS class management module *)

(** Represents a single CSS class name *)
type t

(** Create a CSS class from a string *)
val make : string -> t

(** Convert a CSS class to a string *)
val to_string : t -> string

(** Empty CSS class *)
val empty : t

(** Combine two CSS classes *)
val combine : t -> t -> t

(** Combine multiple CSS classes *)
val concat : t list -> t

(** Infix operator for combining CSS classes *)
val ( @+ ) : t -> t -> t

(** Check if a CSS class is empty *)
val is_empty : t -> bool

(** Create CSS classes from a list of strings *)
val of_strings : string list -> t

(** Combine multiple CSS classes (alias for concat) *)
val tw : t list -> t