diff --git a/client/ui/hud.gd b/client/ui/hud.gd
index a7ae0c239..9456ed4e6 100644
--- a/client/ui/hud.gd
+++ b/client/ui/hud.gd
@@ -1,35 +1,59 @@
 extends Control
 
-# HUD — displays player health, perception mode, time, etc.
+## HUD — implant-styled status panel (D-169, D-170).
+## Displays health, perception mode, time in an ImplantPanel.
 
-@onready var health_label: Label = $MarginContainer/VBoxContainer/HealthLabel
-@onready var perception_label: Label = $MarginContainer/VBoxContainer/PerceptionLabel
-@onready var time_label: Label = $MarginContainer/VBoxContainer/TimeLabel
+var _panel: ImplantPanel
+var _health_row: ImplantDataRow
+var _perception_row: ImplantDataRow
+var _time_row: ImplantDataRow
+var _theme: ImplantTheme
 
 
 func _ready() -> void:
+	# Remove the old raw MarginContainer/labels if present
+	var old := get_node_or_null("MarginContainer")
+	if old:
+		old.queue_free()
+
+	_theme = load("res://ui/implant/default_implant.tres") as ImplantTheme
+
+	_panel = ImplantPanel.new()
+	_panel.name = "StatusPanel"
+	_panel.theme_resource = _theme
+	_panel.custom_minimum_size.x = 200.0
+	_panel.size.x = 200.0
+	_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	_panel.position = Vector2(16, 16)
+	add_child(_panel)
+	_panel.move_child(_panel.get_node("Content"), 0)  # ensure content is first
+
+	_health_row = ImplantDataRow.new("Health: 100")
+	_perception_row = ImplantDataRow.new("Mode: Baseline")
+	_time_row = ImplantDataRow.new("Time: 08:00")
+
+	_panel.add_component(_health_row)
+	_panel.add_component(_perception_row)
+	_panel.add_component(_time_row)
+
 	print("HUD: Initialized")
 
 
-# Update HUD from snapshot data
 func update_from_hud_data(data: Dictionary) -> void:
-	# Update perception mode display
 	if data.has("perception_mode"):
 		var prefix := UIStrings.get_text("hud.perception_mode_prefix")
 		if prefix.is_empty():
-			perception_label.text = data.perception_mode.capitalize()
+			_perception_row.text = data.perception_mode.capitalize()
 		else:
-			perception_label.text = prefix + ": " + data.perception_mode.capitalize()
+			_perception_row.text = prefix + ": " + data.perception_mode.capitalize()
 
-	# Update time display (per D-031)
 	if data.has("time"):
 		var prefix := UIStrings.get_text("hud.time_prefix")
 		if prefix.is_empty():
-			time_label.text = data.time
+			_time_row.text = data.time
 		else:
-			time_label.text = prefix + ": " + data.time
+			_time_row.text = prefix + ": " + data.time
 
 
-# Update player health (from player data, not hud_data)
 func update_health(health: int) -> void:
-	health_label.text = UIStrings.get_text("hud.health") + ": " + str(health)
+	_health_row.text = UIStrings.get_text("hud.health") + ": " + str(health)
diff --git a/client/ui/interaction_prompt.gd b/client/ui/interaction_prompt.gd
index 10d36f8fb..7ef4fdf21 100644
--- a/client/ui/interaction_prompt.gd
+++ b/client/ui/interaction_prompt.gd
@@ -24,6 +24,17 @@ func _ready() -> void:
 	modulate.a = 0.0
 	visible = false
 	_is_showing = false
+	# D-169: Apply implant theme
+	var t := load("res://ui/implant/default_implant.tres") as ImplantTheme
+	if t:
+		var style := StyleBoxFlat.new()
+		style.bg_color = t.panel_bg
+		style.border_color = t.separator
+		style.set_border_width_all(int(t.border_width))
+		style.set_content_margin_all(t.padding)
+		add_theme_stylebox_override("panel", style)
+		prompt_label.add_theme_color_override("font_color", t.text_primary)
+		prompt_label.add_theme_font_size_override("font_size", t.font_body)
 
 
 func _process(_delta: float) -> void:
diff --git a/client/ui/stance_indicator.gd b/client/ui/stance_indicator.gd
index 29a3c8472..a144037e0 100644
--- a/client/ui/stance_indicator.gd
+++ b/client/ui/stance_indicator.gd
@@ -1,8 +1,7 @@
 extends Control
 
-## D-053: Stance indicator — shows current movement stance on HUD.
+## D-053: Stance indicator — implant-styled badge (D-169).
 ## Sprint/Walk/Careful/Crouch. Color-coded for quick read.
-## Lives on UILayer (z-layer 7).
 
 const STANCE_COLORS := {
 	"Sprint": Color("#d45d5d"),  # Red — fast, loud, dangerous
@@ -11,16 +10,23 @@ const STANCE_COLORS := {
 	"Crouch": Color("#e8c547"),  # Amber — very quiet, slow
 }
 
-const STANCE_DEFAULT_COLOR := Color("#c8d0e0")
-const BG_COLOR := Color(0.05, 0.05, 0.08, 0.5)
-const FONT_SIZE := 13
-const PADDING := Vector2(10, 6)
-
 var _current_stance: String = "Walk"
+var _panel: ImplantPanel
+var _row: ImplantDataRow
 
 
 func _ready() -> void:
 	mouse_filter = Control.MOUSE_FILTER_IGNORE
+	var theme_res := load("res://ui/implant/default_implant.tres") as ImplantTheme
+
+	_panel = ImplantPanel.new()
+	_panel.name = "StancePanel"
+	_panel.theme_resource = theme_res
+	_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	add_child(_panel)
+
+	_row = ImplantDataRow.new("Walk", STANCE_COLORS["Walk"])
+	_panel.add_component(_row)
 
 
 func update_from_state() -> void:
@@ -28,32 +34,8 @@ func update_from_state() -> void:
 	if stance == _current_stance:
 		return
 	_current_stance = stance
-	queue_redraw()
-
-
-func _draw() -> void:
-	var font := ThemeDB.fallback_font
-	var text := _current_stance
-	var text_size := font.get_string_size(text, HORIZONTAL_ALIGNMENT_LEFT, -1, FONT_SIZE)
-	var box_size := text_size + PADDING * 2
-
-	# Background
-	draw_rect(Rect2(Vector2.ZERO, box_size), BG_COLOR)
-
-	# Stance text
-	var color: Color = STANCE_COLORS.get(_current_stance, STANCE_DEFAULT_COLOR)
-	draw_string(
-		font,
-		PADDING + Vector2(0, text_size.y),
-		text,
-		HORIZONTAL_ALIGNMENT_LEFT,
-		-1,
-		FONT_SIZE,
-		color
-	)
-
-
-# -- Public API ---------------------------------------------------------------
+	var color: Color = STANCE_COLORS.get(stance, Color("#c8d0e0"))
+	_row.set_content(stance, color)
 
 
 func get_current_stance() -> String: