In deck mode, each room becomes a single card at the center of the screen, resting on a pile - like decision games in the style of Reigns. The room illustration fills the card, the text is shown in a readable panel at its bottom, and choices become directions.

title: "Crown of Mist"
ui: deck

Three ways to confirm a choice:

• drag the card in the desired direction (it follows the pointer, tilts, and an edge glow shows the targeted direction - released too early, it snaps back);
• click the direction pills anchored on the card edges;
• the keyboard arrows.

The first four visible choices are automatically mapped to directions, in declaration order: left, right, up, down.

rooms:
  - id: council
    text: "The council awaits your seal."
    choices:
      - button: "Hand the letter to the envoy"   # left
        to: envoy
      - button: "Open the gates"                  # right
        to: gates
      - button: "Hear the scouts"                 # up
        to: scouts
      - button: "Receive the innkeeper"           # down
        to: inn

Every button type can be a direction: navigation, events with button:, custom actions. A long label wraps over several lines inside its pill.

The room image ([[url]] in the text) becomes the card artwork. back_title: and back_subtitle: (see cards mode) remain available to dress up the cards.

In deck mode, HUD panels never overlap: top/bottom bands are limited to the card width, left/right to its height, and corners anchor to the screen corners. Each position is therefore independent: placing a band no longer clears the corners, and clear-hud: top only removes the top band. Ideal for Reigns-style gauges (people, army, gold, faith…).

hud:
  - position: top-left
    text: "People: v_people_v"
  - position: top-right
    text: "Gold: v_gold_v"

• The visual mood (board, card material) derives from the palette picked by the player: a light palette gives a light deck.
• The input bar is hidden by default (hide_input: false to keep it).
• Keep at most 4 visible choices per room: beyond that, only the first 4 become directions.
• The test-ui-deck demo scenario shows 12 illustrated cards with gauges.

See also: Interface modes, Cards mode, HUD panels.

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