export const STUDY_MODES = [
  { key: "flashcards", label: "Flashcards", path: "flashcards", icon: "▤" },
  { key: "quizzes", label: "Quizzes", path: "quizzes", icon: "✓" },
  { key: "spaced-repetition", label: "Spaced Repetition", path: "spaced-repetition", icon: "↻" },
  { key: "arcade", label: "Arcade", path: "arcade", icon: "◆" },
  // Future modes get added here — the layout, tab bar, and auth middleware need no changes.
] as const;

export type StudyModeKey = (typeof STUDY_MODES)[number]["key"];