In California, the general plan is the constitution, or "blueprint," for development. Accordingly, all zoning and land-use decisions must conform to the general plan (i.e., vertical consistency). See Lesher Communications Inc. v. City of Walnut Creek, 52 Cal.3d 531 (1990). In addition, the terms of each element must be internally consistent (i.e., horizontal consistency). Government Code Section 65300.5; Sierra Club v. Board of Supervisors, 126 Cal.App.3d 698 (1981).