diff --git a/solitaire_engine/src/profile_plugin.rs b/solitaire_engine/src/profile_plugin.rs
index 73e73ac..549dbbf 100644
--- a/solitaire_engine/src/profile_plugin.rs
+++ b/solitaire_engine/src/profile_plugin.rs
@@ -4,11 +4,11 @@
 //! summary in a single scrollable panel. Spawned on the first `P` keypress and
 //! despawned on the second.
 
-use bevy::input::mouse::{MouseScrollUnit, MouseWheel};
 use bevy::input::ButtonInput;
+use bevy::input::mouse::{MouseScrollUnit, MouseWheel};
 use bevy::prelude::*;
 use chrono::{Duration, Local, NaiveDate};
-use solitaire_core::achievement::{achievement_by_id, ALL_ACHIEVEMENTS};
+use solitaire_core::achievement::{ALL_ACHIEVEMENTS, achievement_by_id};
 use solitaire_data::SyncBackend;
 
 use crate::achievement_plugin::AchievementsResource;
@@ -18,10 +18,10 @@ use crate::font_plugin::FontResource;
 use crate::progress_plugin::ProgressResource;
 use crate::resources::{SyncStatus, SyncStatusResource};
 use crate::settings_plugin::SettingsResource;
-use crate::stats_plugin::{format_fastest_win, format_win_rate, StatsResource};
+use crate::stats_plugin::{StatsResource, format_fastest_win, format_win_rate};
 use crate::ui_modal::{
-    spawn_modal, spawn_modal_actions, spawn_modal_button, spawn_modal_header, ButtonVariant,
-    ScrimDismissible,
+    ButtonVariant, ModalScrim, ScrimDismissible, spawn_modal, spawn_modal_actions,
+    spawn_modal_button, spawn_modal_header,
 };
 use crate::ui_theme::{
     ACCENT_PRIMARY, BG_ELEVATED, BORDER_STRONG, SPACE_1, STATE_INFO, STATE_SUCCESS, TEXT_PRIMARY,
@@ -31,8 +31,8 @@ use crate::ui_theme::{
 /// Number of days surfaced in the daily-challenge calendar row.
 ///
 /// 14 = trailing two weeks ending today. At ~12 px per dot with a 6 px gap
-/// the row is ~246 px wide — well inside the 360 px minimum modal width on
-/// the smallest supported window (800 px).
+/// the row is ~246 px wide — comfortably inside the responsive modal card
+/// even on narrow phone layouts.
 const CALENDAR_DAYS: usize = 14;
 
 /// Diameter of each calendar dot, in pixels.
@@ -146,6 +146,7 @@ fn toggle_profile_screen(
     font_res: Option<Res<FontResource>>,
     avatar: Option<Res<AvatarResource>>,
     screens: Query<Entity, With<ProfileScreen>>,
+    scrims: Query<(), With<ModalScrim>>,
 ) {
     let button_clicked = requests.read().count() > 0;
     let p_pressed = keys.just_pressed(KeyCode::KeyP);
@@ -161,6 +162,9 @@ fn toggle_profile_screen(
     if !want_open && !want_close {
         return;
     }
+    if want_open && !scrims.is_empty() {
+        return;
+    }
     if let Ok(entity) = screens.single() {
         commands.entity(entity).despawn();
     } else {
@@ -257,7 +261,10 @@ fn spawn_profile_screen(
                     flex_direction: FlexDirection::Row,
                     align_items: AlignItems::Center,
                     column_gap: Val::Px(10.0),
-                    margin: UiRect { bottom: Val::Px(4.0), ..default() },
+                    margin: UiRect {
+                        bottom: Val::Px(4.0),
+                        ..default()
+                    },
                     ..default()
                 })
                 .with_children(|row| {
@@ -275,7 +282,13 @@ fn spawn_profile_screen(
                         ));
                     } else {
                         // Initials fallback: coloured disc with the first letter.
-                        let initial = username.chars().next().unwrap_or('?').to_uppercase().next().unwrap_or('?');
+                        let initial = username
+                            .chars()
+                            .next()
+                            .unwrap_or('?')
+                            .to_uppercase()
+                            .next()
+                            .unwrap_or('?');
                         row.spawn((
                             Node {
                                 width: Val::Px(SIZE),
@@ -335,7 +348,10 @@ fn spawn_profile_screen(
                 let pct = if xp_span == 0 {
                     100u64
                 } else {
-                    xp_done.saturating_mul(100).checked_div(xp_span).unwrap_or(100)
+                    xp_done
+                        .saturating_mul(100)
+                        .checked_div(xp_span)
+                        .unwrap_or(100)
                 };
                 body.spawn((
                     Text::new(format!(
@@ -378,7 +394,10 @@ fn spawn_profile_screen(
                 let records = &ar.0;
                 let unlocked_count = records.iter().filter(|r| r.unlocked).count();
                 body.spawn((
-                    Text::new(format!("{unlocked_count} / {} unlocked", ALL_ACHIEVEMENTS.len())),
+                    Text::new(format!(
+                        "{unlocked_count} / {} unlocked",
+                        ALL_ACHIEVEMENTS.len()
+                    )),
                     font_row.clone(),
                     TextColor(ACCENT_PRIMARY),
                 ));
@@ -533,7 +552,11 @@ fn spawn_daily_calendar(
                 // accent border) regardless of completion; past days use a
                 // subtle border so the row reads as a row of pills, not a
                 // strip of bare squares.
-                let border_color = if is_today { ACCENT_PRIMARY } else { BORDER_STRONG };
+                let border_color = if is_today {
+                    ACCENT_PRIMARY
+                } else {
+                    BORDER_STRONG
+                };
                 let border_width = if is_today { 2.0 } else { 0.0 };
                 row.spawn((
                     DailyCalendarDot {
@@ -569,9 +592,7 @@ fn calendar_dot_color(completed: bool) -> Color {
 fn sync_info(backend: &SyncBackend) -> (&'static str, String) {
     match backend {
         SyncBackend::Local => ("Local", "—".to_string()),
-        SyncBackend::SolitaireServer { username, .. } => {
-            ("Solitaire Server", username.clone())
-        }
+        SyncBackend::SolitaireServer { username, .. } => ("Solitaire Server", username.clone()),
     }
 }
 
@@ -641,6 +662,25 @@ mod tests {
         );
     }
 
+    #[test]
+    fn pressing_p_does_not_stack_profile_over_existing_modal_scrim() {
+        let mut app = headless_app();
+        app.world_mut().spawn(ModalScrim);
+        app.world_mut()
+            .resource_mut::<ButtonInput<KeyCode>>()
+            .press(KeyCode::KeyP);
+        app.update();
+
+        assert_eq!(
+            app.world_mut()
+                .query::<&ProfileScreen>()
+                .iter(app.world())
+                .count(),
+            0,
+            "Profile should not open when another modal scrim already exists"
+        );
+    }
+
     #[test]
     fn profile_modal_body_is_scrollable() {
         let mut app = headless_app();
diff --git a/solitaire_engine/src/ui_modal.rs b/solitaire_engine/src/ui_modal.rs
index 3ed1796..91c9d3c 100644
--- a/solitaire_engine/src/ui_modal.rs
+++ b/solitaire_engine/src/ui_modal.rs
@@ -58,11 +58,11 @@ use crate::font_plugin::FontResource;
 use crate::platform::SHOW_KEYBOARD_ACCELERATORS;
 use crate::settings_plugin::SettingsResource;
 use crate::ui_theme::{
-    scaled_duration, ACCENT_PRIMARY, ACCENT_PRIMARY_HOVER, ACCENT_SECONDARY, BG_BASE, BG_ELEVATED,
-    BG_ELEVATED_HI, BG_ELEVATED_PRESSED, BG_ELEVATED_TOP, BORDER_STRONG, BORDER_SUBTLE,
-    HighContrastBorder, MOTION_MODAL_SECS, RADIUS_LG, RADIUS_MD, SCRIM, TEXT_PRIMARY,
-    TEXT_SECONDARY, TYPE_BODY_LG, TYPE_CAPTION, TYPE_HEADLINE, VAL_SPACE_2, VAL_SPACE_3,
-    VAL_SPACE_4, VAL_SPACE_5,
+    ACCENT_PRIMARY, ACCENT_PRIMARY_HOVER, ACCENT_SECONDARY, BG_BASE, BG_ELEVATED, BG_ELEVATED_HI,
+    BG_ELEVATED_PRESSED, BG_ELEVATED_TOP, BORDER_STRONG, BORDER_SUBTLE, HighContrastBorder,
+    MOTION_MODAL_SECS, RADIUS_LG, RADIUS_MD, SCRIM, TEXT_PRIMARY, TEXT_SECONDARY, TYPE_BODY_LG,
+    TYPE_CAPTION, TYPE_HEADLINE, VAL_SPACE_2, VAL_SPACE_3, VAL_SPACE_4, VAL_SPACE_5,
+    scaled_duration,
 };
 
 // ---------------------------------------------------------------------------
@@ -193,7 +193,10 @@ where
         .spawn((
             plugin_marker,
             ModalScrim,
-            ModalEntering { elapsed: 0.0, duration },
+            ModalEntering {
+                elapsed: 0.0,
+                duration,
+            },
             Node {
                 position_type: PositionType::Absolute,
                 left: Val::Px(0.0),
@@ -227,11 +230,11 @@ where
                 Node {
                     flex_direction: FlexDirection::Column,
                     row_gap: VAL_SPACE_4,
+                    width: Val::Percent(90.0),
                     padding: UiRect::all(VAL_SPACE_5),
                     border: UiRect::all(Val::Px(1.0)),
                     border_radius: BorderRadius::all(Val::Px(RADIUS_LG)),
                     max_width: Val::Px(720.0),
-                    min_width: Val::Px(360.0),
                     align_items: AlignItems::Stretch,
                     ..default()
                 },
@@ -295,12 +298,7 @@ pub fn spawn_modal_body_text(
         font_size: TYPE_BODY_LG,
         ..default()
     };
-    parent.spawn((
-        ModalBody,
-        Text::new(text.into()),
-        font,
-        TextColor(color),
-    ));
+    parent.spawn((ModalBody, Text::new(text.into()), font, TextColor(color)));
 }
 
 /// Spawns the bottom actions row — flex-row with primary right-aligned.
@@ -343,7 +341,11 @@ pub fn spawn_modal_button<M: Component>(
     variant: ButtonVariant,
     font_res: Option<&FontResource>,
 ) {
-    let hotkey = if SHOW_KEYBOARD_ACCELERATORS { hotkey } else { None };
+    let hotkey = if SHOW_KEYBOARD_ACCELERATORS {
+        hotkey
+    } else {
+        None
+    };
     let font_handle = font_res.map(|f| f.0.clone()).unwrap_or_default();
     let font_label = TextFont {
         font: font_handle.clone(),
@@ -517,7 +519,10 @@ pub fn apply_modal_enter_speed(
 pub fn advance_modal_enter(
     time: Res<Time>,
     mut commands: Commands,
-    mut scrims: Query<(Entity, &mut ModalEntering, &mut BackgroundColor, &Children), With<ModalScrim>>,
+    mut scrims: Query<
+        (Entity, &mut ModalEntering, &mut BackgroundColor, &Children),
+        With<ModalScrim>,
+    >,
     mut cards: Query<&mut Transform, With<ModalCard>>,
 ) {
     let dt = time.delta_secs();
@@ -653,10 +658,7 @@ pub fn dismiss_modal_on_scrim_click(
 /// paint system.
 #[allow(clippy::type_complexity)]
 pub fn paint_modal_buttons(
-    mut buttons: Query<
-        (&Interaction, &ModalButton, &mut BackgroundColor),
-        Changed<Interaction>,
-    >,
+    mut buttons: Query<(&Interaction, &ModalButton, &mut BackgroundColor), Changed<Interaction>>,
 ) {
     for (interaction, modal_button, mut bg) in &mut buttons {
         bg.0 = match interaction {
@@ -687,7 +689,12 @@ impl Plugin for UiModalPlugin {
         // before advance computes `t`.
         app.add_systems(
             Update,
-            (apply_modal_enter_speed, advance_modal_enter, paint_modal_buttons).chain(),
+            (
+                apply_modal_enter_speed,
+                advance_modal_enter,
+                paint_modal_buttons,
+            )
+                .chain(),
         );
         // Click-outside-to-dismiss is independent of the open
         // animation chain — it reads `just_pressed(Left)` and runs
@@ -774,6 +781,11 @@ mod tests {
             (card_scale - MODAL_ENTER_START_SCALE).abs() < 1e-6,
             "card should spawn at MODAL_ENTER_START_SCALE; got {card_scale}"
         );
+
+        let card_node = card_node_of(&app, scrim);
+        assert_eq!(card_node.width, Val::Percent(90.0));
+        assert_eq!(card_node.max_width, Val::Px(720.0));
+        assert_eq!(card_node.min_width, Val::Auto);
     }
 
     /// After enough simulated ticks for `elapsed >= duration`, the
@@ -817,23 +829,42 @@ mod tests {
         );
     }
 
+    /// Returns the `Entity` of the first `ModalCard` child of the given
+    /// scrim.
+    fn card_entity_of(world: &World, scrim: Entity) -> Entity {
+        let children = world
+            .entity(scrim)
+            .get::<Children>()
+            .expect("scrim should have a card child");
+        children
+            .iter()
+            .find(|child| world.entity(*child).get::<ModalCard>().is_some())
+            .expect("scrim should have a ModalCard child")
+    }
+
+    /// Returns the `Node` of the first `ModalCard` child of the given
+    /// scrim.
+    fn card_node_of(app: &App, scrim: Entity) -> &Node {
+        let world = app.world();
+        let card = card_entity_of(world, scrim);
+        world
+            .entity(card)
+            .get::<Node>()
+            .expect("ModalCard child should have a Node")
+    }
+
     /// Returns the X-component of the first `ModalCard` child of the
     /// given scrim's `Transform::scale`. All three components are kept
     /// in sync by the system so reading X is sufficient.
     fn card_scale_of(app: &mut App, scrim: Entity) -> f32 {
         let world = app.world();
-        let children = world
-            .entity(scrim)
-            .get::<Children>()
-            .expect("scrim should have a card child");
-        for child in children.iter() {
-            if let Some(t) = world.entity(child).get::<Transform>()
-                && world.entity(child).get::<ModalCard>().is_some()
-            {
-                return t.scale.x;
-            }
-        }
-        panic!("no ModalCard child with a Transform under scrim {scrim:?}");
+        let card = card_entity_of(world, scrim);
+        world
+            .entity(card)
+            .get::<Transform>()
+            .expect("ModalCard child should have a Transform")
+            .scale
+            .x
     }
 
     /// Tells `TimePlugin` to advance the clock by `secs` on the next
@@ -844,9 +875,9 @@ mod tests {
     fn set_manual_time_step(app: &mut App, secs: f32) {
         use bevy::time::TimeUpdateStrategy;
         use std::time::Duration;
-        app.insert_resource(TimeUpdateStrategy::ManualDuration(
-            Duration::from_secs_f32(secs),
-        ));
+        app.insert_resource(TimeUpdateStrategy::ManualDuration(Duration::from_secs_f32(
+            secs,
+        )));
     }
 
     // -----------------------------------------------------------------------
@@ -871,10 +902,26 @@ mod tests {
     fn cursor_is_inside_rect_outside_returns_false() {
         let centre = Vec2::new(200.0, 150.0);
         let size = Vec2::new(100.0, 60.0);
-        assert!(!cursor_is_inside_rect(Vec2::new(149.0, 150.0), centre, size)); // left
-        assert!(!cursor_is_inside_rect(Vec2::new(251.0, 150.0), centre, size)); // right
-        assert!(!cursor_is_inside_rect(Vec2::new(200.0, 119.0), centre, size)); // above
-        assert!(!cursor_is_inside_rect(Vec2::new(200.0, 181.0), centre, size)); // below
+        assert!(!cursor_is_inside_rect(
+            Vec2::new(149.0, 150.0),
+            centre,
+            size
+        )); // left
+        assert!(!cursor_is_inside_rect(
+            Vec2::new(251.0, 150.0),
+            centre,
+            size
+        )); // right
+        assert!(!cursor_is_inside_rect(
+            Vec2::new(200.0, 119.0),
+            centre,
+            size
+        )); // above
+        assert!(!cursor_is_inside_rect(
+            Vec2::new(200.0, 181.0),
+            centre,
+            size
+        )); // below
     }
 
     /// Builds a headless app capable of running
@@ -966,9 +1013,7 @@ mod tests {
     /// `MinimalPlugins` doesn't run the input clear pass, so we mark
     /// the clear by hand on the resource between presses.
     fn press_left_mouse(app: &mut App) {
-        let mut input = app
-            .world_mut()
-            .resource_mut::<ButtonInput<MouseButton>>();
+        let mut input = app.world_mut().resource_mut::<ButtonInput<MouseButton>>();
         input.clear();
         input.press(MouseButton::Left);
     }
@@ -1068,4 +1113,3 @@ mod tests {
         );
     }
 }
-