[
  {
    "id": "sbc_tri_nations",
    "name": "Tri-Nations",
    "description": "Field 11 players featuring at least one Brazilian, one Argentinian, and one Nigerian.",
    "requirements": {
      "squad_size": 11,
      "min_overall": 60,
      "max_overall": null,
      "min_chemistry": null,
      "required_leagues": [],
      "required_nations": ["Brazil", "Argentina", "Nigeria"],
      "required_clubs": [],
      "min_players_from_same_league": null,
      "min_players_from_same_nation": null,
      "min_players_from_same_club": null
    },
    "reward": { "coins": 2500, "xp": 300, "pack_id": "silver_pack" },
    "expires_at": null,
    "repeatable": false
  },
  {
    "id": "sbc_silver_to_gold",
    "name": "Silver to Gold",
    "description": "Submit 11 silver-quality players (average overall 68+) for a gold pack.",
    "requirements": {
      "squad_size": 11,
      "min_overall": 68,
      "max_overall": 74,
      "min_chemistry": null,
      "required_leagues": [],
      "required_nations": [],
      "required_clubs": [],
      "min_players_from_same_league": null,
      "min_players_from_same_nation": null,
      "min_players_from_same_club": null
    },
    "reward": { "coins": 0, "xp": 350, "pack_id": "gold_pack" },
    "expires_at": null,
    "repeatable": true
  },
  {
    "id": "sbc_league_loyalty",
    "name": "League Loyalty",
    "description": "Build a squad where at least 8 players share the same league.",
    "requirements": {
      "squad_size": 11,
      "min_overall": 62,
      "max_overall": null,
      "min_chemistry": null,
      "required_leagues": [],
      "required_nations": [],
      "required_clubs": [],
      "min_players_from_same_league": 8,
      "min_players_from_same_nation": null,
      "min_players_from_same_club": null
    },
    "reward": { "coins": 1500, "xp": 200, "pack_id": null },
    "expires_at": null,
    "repeatable": true
  },
  {
    "id": "sbc_african_stars",
    "name": "African Stars",
    "description": "Celebrate African football — need at least one player from Ghana and one from Senegal.",
    "requirements": {
      "squad_size": 11,
      "min_overall": 60,
      "max_overall": null,
      "min_chemistry": null,
      "required_leagues": [],
      "required_nations": ["Ghana", "Senegal"],
      "required_clubs": [],
      "min_players_from_same_league": null,
      "min_players_from_same_nation": null,
      "min_players_from_same_club": null
    },
    "reward": { "coins": 1000, "xp": 150, "pack_id": "bronze_pack" },
    "expires_at": null,
    "repeatable": false
  },
  {
    "id": "sbc_gold_standard",
    "name": "Gold Standard",
    "description": "Submit 11 high-quality players with an average overall of 76+.",
    "requirements": {
      "squad_size": 11,
      "min_overall": 76,
      "max_overall": null,
      "min_chemistry": null,
      "required_leagues": [],
      "required_nations": [],
      "required_clubs": [],
      "min_players_from_same_league": null,
      "min_players_from_same_nation": null,
      "min_players_from_same_club": null
    },
    "reward": { "coins": 3000, "xp": 500, "pack_id": "rare_gold_pack" },
    "expires_at": null,
    "repeatable": false
  }
]