Add dashboard Bluetooth controls

android/.gitignore

@@ -4,3 +4,4 @@ app/build/
 local.properties
 *.jks
 *.keystore
+release-keystore-password.txt

android/README.md

@@ -12,8 +12,9 @@ The Android app is a focused native companion rather than a copy of the web dash
 
 1. Deploy the latest Pi release with `./install.sh` so BlueZ and the Bluetooth bridge are installed.
 2. Open **Settings → Mobile** in the web dashboard and select **Pair a phone**.
-3. Install and open the Android application and grant Bluetooth, notification, and precise-location permissions.
-4. Enter the six-digit code shown by the dashboard.
+3. If needed, turn Bluetooth on and select **Make discoverable**. The Pi remains discoverable for three minutes.
+4. Install and open the Android application and grant Bluetooth, notification, and precise-location permissions.
+5. Enter the six-digit code shown by the dashboard.
 
 The one-use code expires after ten minutes. The resulting credential is encrypted with Android Keystore and can be revoked from **Settings → Mobile**. A phone can only launch existing allowlisted ADB shortcuts; the Bluetooth protocol has no shell, arbitrary ADB, APK upload, update, or power operation.
 

install.sh

@@ -56,6 +56,7 @@ apt-get install -y \
   python3 \
   python3-dbus \
   python3-gi \
+  rfkill \
   rsync \
   sqlite3 \
   sudo \
@@ -64,7 +65,7 @@ apt-get install -y \
   wireless-regdb \
   wpasupplicant
 
-for required_command in conntrack dnsmasq ip journalctl nmcli nft uuidgen wpa_passphrase; do
+for required_command in conntrack dnsmasq ip journalctl nmcli nft rfkill uuidgen wpa_passphrase; do
   if ! command -v "${required_command}" >/dev/null 2>&1; then
     echo "Required network command was not installed: ${required_command}" >&2
     exit 1
@@ -143,6 +144,7 @@ mv -Tf "${INSTALL_ROOT}/current.next" "${CURRENT}"
 echo "[5/7] Installing system services"
 install -m 0755 "${SCRIPT_DIR}/scripts/pi-car-companion-network-setup" /usr/local/sbin/pi-car-companion-network-setup
 install -m 0755 "${SCRIPT_DIR}/scripts/pi-car-companion-power" /usr/local/sbin/pi-car-companion-power
+install -m 0755 "${SCRIPT_DIR}/scripts/pi-car-companion-bluetooth-control" /usr/local/sbin/pi-car-companion-bluetooth-control
 install -m 0755 "${SCRIPT_DIR}/scripts/pi-car-companion-update" /usr/local/sbin/pi-car-companion-update
 install -d -m 0755 /usr/local/libexec
 install -m 0755 "${SCRIPT_DIR}/scripts/pi-car-companion-bluetooth" /usr/local/libexec/pi-car-companion-bluetooth

package.json

@@ -16,7 +16,7 @@
     "typecheck": "npm run typecheck --workspaces --if-present",
     "test": "npm run test --workspaces --if-present",
     "build": "npm run build --workspaces --if-present",
-    "check:scripts": "bash -n install.sh scripts/pi-car-companion-update scripts/pi-car-companion-network-setup scripts/pi-car-companion-power && python3 -c \"compile(open('scripts/pi-car-companion-bluetooth', encoding='utf-8').read(), 'scripts/pi-car-companion-bluetooth', 'exec')\"",
+    "check:scripts": "bash -n install.sh scripts/pi-car-companion-update scripts/pi-car-companion-network-setup scripts/pi-car-companion-power scripts/pi-car-companion-bluetooth-control && python3 -c \"compile(open('scripts/pi-car-companion-bluetooth', encoding='utf-8').read(), 'scripts/pi-car-companion-bluetooth', 'exec')\"",
     "check": "npm run check:scripts && npm run lint && npm run typecheck && npm test && npm run build"
   },
   "devDependencies": {

scripts/pi-car-companion-bluetooth-control

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+if [[ ${EUID} -ne 0 ]]; then
+  echo "The Bluetooth control helper must run as root." >&2
+  exit 1
+fi
+
+BLUETOOTHCTL=/usr/bin/bluetoothctl
+SYSTEMCTL=/usr/bin/systemctl
+BRIDGE_SERVICE=pi-car-companion-bluetooth.service
+
+print_status() {
+  local details powered discoverable pairable message
+  details="$(LC_ALL=C "${BLUETOOTHCTL}" show 2>/dev/null || true)"
+  if ! grep -q '^Controller ' <<<"${details}"; then
+    printf '%s\n' '{"supported":false,"powered":false,"discoverable":false,"pairable":false,"message":"No Bluetooth adapter was found."}'
+    return
+  fi
+  powered="$(sed -n 's/^[[:space:]]*Powered: //p' <<<"${details}" | head -n 1)"
+  discoverable="$(sed -n 's/^[[:space:]]*Discoverable: //p' <<<"${details}" | head -n 1)"
+  pairable="$(sed -n 's/^[[:space:]]*Pairable: //p' <<<"${details}" | head -n 1)"
+  [[ "${powered}" == "yes" ]] && powered=true || powered=false
+  [[ "${discoverable}" == "yes" ]] && discoverable=true || discoverable=false
+  [[ "${pairable}" == "yes" ]] && pairable=true || pairable=false
+  if [[ "${discoverable}" == "true" ]]; then
+    message="The Pi is visible to nearby phones for three minutes."
+  elif [[ "${powered}" == "true" ]]; then
+    message="Bluetooth is on and the companion bridge is available."
+  else
+    message="Bluetooth is off."
+  fi
+  printf '{"supported":true,"powered":%s,"discoverable":%s,"pairable":%s,"message":"%s"}\n' \
+    "${powered}" "${discoverable}" "${pairable}" "${message}"
+}
+
+power_on() {
+  "${SYSTEMCTL}" start bluetooth.service
+  /usr/sbin/rfkill unblock bluetooth
+  "${BLUETOOTHCTL}" power on >/dev/null
+  "${SYSTEMCTL}" enable --now "${BRIDGE_SERVICE}" >/dev/null
+}
+
+case "${1:-}" in
+  status)
+    ;;
+  on)
+    power_on
+    ;;
+  off)
+    "${SYSTEMCTL}" disable --now "${BRIDGE_SERVICE}" >/dev/null
+    "${BLUETOOTHCTL}" discoverable off >/dev/null 2>&1 || true
+    "${BLUETOOTHCTL}" pairable off >/dev/null 2>&1 || true
+    "${BLUETOOTHCTL}" power off >/dev/null
+    /usr/sbin/rfkill block bluetooth
+    ;;
+  discoverable)
+    power_on
+    "${BLUETOOTHCTL}" discoverable-timeout 180 >/dev/null
+    "${BLUETOOTHCTL}" pairable-timeout 180 >/dev/null
+    "${BLUETOOTHCTL}" pairable on >/dev/null
+    "${BLUETOOTHCTL}" discoverable on >/dev/null
+    ;;
+  *)
+    echo "Usage: pi-car-companion-bluetooth-control status|on|off|discoverable" >&2
+    exit 2
+    ;;
+esac
+
+print_status

scripts/pi-car-companion-update

@@ -66,12 +66,18 @@ install_integration_files() {
   install -m 0755 "${source_release}/scripts/pi-car-companion-update" /usr/local/sbin/pi-car-companion-update
   install -m 0755 "${source_release}/scripts/pi-car-companion-network-setup" /usr/local/sbin/pi-car-companion-network-setup
   install -m 0755 "${source_release}/scripts/pi-car-companion-power" /usr/local/sbin/pi-car-companion-power
+  if [[ -f "${source_release}/scripts/pi-car-companion-bluetooth-control" ]]; then
+    install -m 0755 "${source_release}/scripts/pi-car-companion-bluetooth-control" /usr/local/sbin/pi-car-companion-bluetooth-control
+  fi
+  install -d -m 0755 /usr/local/libexec
+  install -m 0755 "${source_release}/scripts/pi-car-companion-bluetooth" /usr/local/libexec/pi-car-companion-bluetooth
   install -m 0644 "${source_release}/systemd/pi-car-companion.service" /etc/systemd/system/pi-car-companion.service
   install -m 0644 "${source_release}/systemd/pi-car-companion-update.service" /etc/systemd/system/pi-car-companion-update.service
   install -m 0644 "${source_release}/systemd/pi-car-companion-update-check.service" /etc/systemd/system/pi-car-companion-update-check.service
   install -m 0644 "${source_release}/systemd/pi-car-companion-network.service" /etc/systemd/system/pi-car-companion-network.service
   install -m 0644 "${source_release}/systemd/pi-car-companion-network-configure.service" /etc/systemd/system/pi-car-companion-network-configure.service
   install -m 0644 "${source_release}/systemd/pi-car-companion-network-observer.service" /etc/systemd/system/pi-car-companion-network-observer.service
+  install -m 0644 "${source_release}/systemd/pi-car-companion-bluetooth.service" /etc/systemd/system/pi-car-companion-bluetooth.service
   install -m 0440 "${source_release}/systemd/pi-car-companion.sudoers" /etc/sudoers.d/pi-car-companion
   install -d -m 0755 /etc/NetworkManager/dnsmasq-shared.d
   install -m 0644 "${source_release}/config/dnsmasq-shared-pi-car-companion.conf" /etc/NetworkManager/dnsmasq-shared.d/pi-car-companion.conf
@@ -204,3 +210,4 @@ write_status "success" "Update installed and the companion service is healthy."
 systemctl try-restart pi-car-companion-network.service || true
 systemctl enable pi-car-companion-network-observer.service || true
 systemctl restart pi-car-companion-network-observer.service || true
+systemctl try-restart pi-car-companion-bluetooth.service || true

server/src/bluetooth.ts

@@ -0,0 +1,76 @@
+import { execFile } from "node:child_process";
+import { promisify } from "node:util";
+import { z } from "zod";
+
+const execFileAsync = promisify(execFile);
+const helperPath = "/usr/local/sbin/pi-car-companion-bluetooth-control";
+
+export const bluetoothActionSchema = z.enum(["on", "off", "discoverable"]);
+export type BluetoothAction = z.infer<typeof bluetoothActionSchema>;
+
+export const bluetoothStatusSchema = z.object({
+  supported: z.boolean(),
+  powered: z.boolean(),
+  discoverable: z.boolean(),
+  pairable: z.boolean(),
+  message: z.string()
+});
+export type BluetoothStatus = z.infer<typeof bluetoothStatusSchema>;
+
+function unavailableStatus(): BluetoothStatus {
+  return {
+    supported: false,
+    powered: false,
+    discoverable: false,
+    pairable: false,
+    message: "Bluetooth controls are available after installing the Pi system service."
+  };
+}
+
+export function parseBluetoothStatus(output: string): BluetoothStatus {
+  return bluetoothStatusSchema.parse(JSON.parse(output));
+}
+
+export function parseBluetoothctlStatus(output: string): BluetoothStatus {
+  if (!/^Controller /m.test(output)) {
+    return { ...unavailableStatus(), message: "No Bluetooth adapter was found." };
+  }
+  const property = (name: string) => new RegExp(`^\\s*${name}: yes$`, "m").test(output);
+  const powered = property("Powered");
+  const discoverable = property("Discoverable");
+  return {
+    supported: true,
+    powered,
+    discoverable,
+    pairable: property("Pairable"),
+    message: discoverable
+      ? "The Pi is visible to nearby phones for three minutes."
+      : powered
+        ? "Bluetooth is on and the companion bridge is available."
+        : "Bluetooth is off."
+  };
+}
+
+async function runHelper(action: BluetoothAction): Promise<BluetoothStatus> {
+  const { stdout } = await execFileAsync("/usr/bin/sudo", ["-n", helperPath, action], {
+    timeout: 12_000,
+    maxBuffer: 16 * 1024
+  });
+  return parseBluetoothStatus(stdout);
+}
+
+export async function readBluetoothStatus(): Promise<BluetoothStatus> {
+  try {
+    const { stdout } = await execFileAsync("/usr/bin/bluetoothctl", ["show"], {
+      timeout: 5_000,
+      maxBuffer: 16 * 1024
+    });
+    return parseBluetoothctlStatus(stdout);
+  } catch {
+    return unavailableStatus();
+  }
+}
+
+export async function triggerBluetoothAction(action: BluetoothAction): Promise<BluetoothStatus> {
+  return runHelper(action);
+}

server/src/mobile.ts

@@ -3,6 +3,7 @@ import type { FastifyInstance, FastifyReply, FastifyRequest } from "fastify";
 import { z } from "zod";
 import type { AdbConfig } from "./adb.js";
 import { launchAdbTarget } from "./adb.js";
+import { bluetoothActionSchema, readBluetoothStatus, triggerBluetoothAction } from "./bluetooth.js";
 import type { CarTelemetryRecorder } from "./car-telemetry.js";
 import type { CompanionDatabase } from "./database.js";
 import { hashToken, randomToken } from "./security.js";
@@ -93,6 +94,26 @@ export function registerMobileRoutes(
     return { devices };
   });
 
+  app.get("/api/mobile/bluetooth", async (request, reply) => {
+    if (!requireWebUser(request, reply)) return;
+    return readBluetoothStatus();
+  });
+
+  app.post("/api/mobile/bluetooth", { config: { rateLimit: { max: 12, timeWindow: "1 minute" } } }, async (request, reply) => {
+    if (!requireWebUser(request, reply)) return;
+    const parsed = z.object({ action: bluetoothActionSchema }).safeParse(request.body);
+    if (!parsed.success) {
+      return reply.code(400).send({ error: { code: "INVALID_BLUETOOTH_ACTION", message: "That Bluetooth action is not available" } });
+    }
+    try {
+      return await triggerBluetoothAction(parsed.data.action);
+    } catch {
+      return reply.code(503).send({
+        error: { code: "BLUETOOTH_ACTION_FAILED", message: "The Pi could not change its Bluetooth state" }
+      });
+    }
+  });
+
   app.delete<{ Params: { id: string } }>("/api/mobile/devices/:id", async (request, reply) => {
     if (!requireWebUser(request, reply)) return;
     const result = database.prepare("UPDATE mobile_devices SET revoked_at = ? WHERE id = ? AND revoked_at IS NULL")

server/tests/app.test.ts

@@ -356,6 +356,18 @@ describe("authentication boundary", () => {
     const webHeaders = { ...mutationHeaders(csrfToken), cookie };
 
     expect((await app.inject({ method: "GET", url: "/api/mobile/devices" })).statusCode).toBe(401);
+    expect((await app.inject({ method: "GET", url: "/api/mobile/bluetooth" })).statusCode).toBe(401);
+    const bluetooth = await app.inject({ method: "GET", url: "/api/mobile/bluetooth", headers: { cookie } });
+    expect(bluetooth.statusCode).toBe(200);
+    expect(bluetooth.json()).toMatchObject({ powered: expect.any(Boolean), discoverable: expect.any(Boolean) });
+    const invalidBluetoothAction = await app.inject({
+      method: "POST",
+      url: "/api/mobile/bluetooth",
+      headers: webHeaders,
+      payload: { action: "arbitrary-command" }
+    });
+    expect(invalidBluetoothAction.statusCode).toBe(400);
+    expect(invalidBluetoothAction.json()).toMatchObject({ error: { code: "INVALID_BLUETOOTH_ACTION" } });
     const pairing = await app.inject({ method: "POST", url: "/api/mobile/pairing", headers: webHeaders });
     expect(pairing.statusCode).toBe(200);
     const code = pairing.json<{ code: string }>().code;

server/tests/bluetooth.test.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { bluetoothActionSchema, parseBluetoothctlStatus, parseBluetoothStatus } from "../src/bluetooth.js";
+
+describe("Bluetooth controls", () => {
+  it("accepts only fixed radio actions", () => {
+    expect(bluetoothActionSchema.safeParse("on").success).toBe(true);
+    expect(bluetoothActionSchema.safeParse("off").success).toBe(true);
+    expect(bluetoothActionSchema.safeParse("discoverable").success).toBe(true);
+    expect(bluetoothActionSchema.safeParse("scan --all").success).toBe(false);
+  });
+
+  it("validates status returned by the privileged helper", () => {
+    expect(parseBluetoothStatus(JSON.stringify({
+      supported: true,
+      powered: true,
+      discoverable: false,
+      pairable: true,
+      message: "Bluetooth is on."
+    }))).toMatchObject({ supported: true, powered: true, discoverable: false });
+
+    expect(() => parseBluetoothStatus('{"powered":"yes"}')).toThrow();
+  });
+
+  it("reads the adapter state from BlueZ without privileged polling", () => {
+    const status = parseBluetoothctlStatus(`Controller AA:BB:CC:DD:EE:FF Pi [default]\n\tPowered: yes\n\tDiscoverable: yes\n\tPairable: yes\n`);
+    expect(status).toMatchObject({ supported: true, powered: true, discoverable: true, pairable: true });
+    expect(parseBluetoothctlStatus("")).toMatchObject({ supported: false, powered: false });
+  });
+});

systemd/pi-car-companion.sudoers

@@ -3,3 +3,6 @@ pi-companion ALL=(root) NOPASSWD: /usr/bin/systemctl start --no-block pi-car-com
 pi-companion ALL=(root) NOPASSWD: /usr/bin/systemctl start --no-block pi-car-companion-network-configure.service
 pi-companion ALL=(root) NOPASSWD: /usr/local/sbin/pi-car-companion-power reboot
 pi-companion ALL=(root) NOPASSWD: /usr/local/sbin/pi-car-companion-power poweroff
+pi-companion ALL=(root) NOPASSWD: /usr/local/sbin/pi-car-companion-bluetooth-control on
+pi-companion ALL=(root) NOPASSWD: /usr/local/sbin/pi-car-companion-bluetooth-control off
+pi-companion ALL=(root) NOPASSWD: /usr/local/sbin/pi-car-companion-bluetooth-control discoverable

web/src/App.tsx

@@ -29,6 +29,7 @@ import {
   getNetworkActivity,
   getUpdateStatus,
   getMobileDevices,
+  getBluetoothStatus,
   post,
   revokeMobileDevice,
   type AuthState,
@@ -36,7 +37,8 @@ import {
   type NetworkStatus,
   type NetworkActivity,
   type UpdateStatus,
-  type MobileDevice
+  type MobileDevice,
+  type BluetoothStatus
 } from "./api";
 
 const ShellTerminal = lazy(async () => {
@@ -344,8 +346,10 @@ function SettingsPage({ csrfToken }: { csrfToken: string }) {
   const [confirmHotspot, setConfirmHotspot] = useState(false);
   const [networkNotice, setNetworkNotice] = useState("");
   const [mobileDevices, setMobileDevices] = useState<MobileDevice[]>([]);
+  const [bluetooth, setBluetooth] = useState<BluetoothStatus | null>(null);
   const [pairingCode, setPairingCode] = useState<{ code: string; expiresAt: string } | null>(null);
   const [mobileError, setMobileError] = useState("");
+  const [mobileNotice, setMobileNotice] = useState("");
   const running = update?.state === "checking" || update?.state === "building";
 
   const refreshUpdate = useCallback(async () => {
@@ -375,16 +379,43 @@ function SettingsPage({ csrfToken }: { csrfToken: string }) {
     }
   }, []);
 
+  const refreshBluetooth = useCallback(async () => {
+    try {
+      setBluetooth(await getBluetoothStatus());
+    } catch (caught) {
+      setMobileError(caught instanceof Error ? caught.message : "Bluetooth status could not be loaded");
+    }
+  }, []);
+
   useEffect(() => {
     void refreshUpdate();
     void refreshNetwork();
     void refreshMobile();
+    void refreshBluetooth();
     const interval = window.setInterval(() => {
       void refreshUpdate();
       void refreshNetwork();
+      void refreshBluetooth();
     }, 3_000);
     return () => window.clearInterval(interval);
-  }, [refreshMobile, refreshNetwork, refreshUpdate]);
+  }, [refreshBluetooth, refreshMobile, refreshNetwork, refreshUpdate]);
+
+  async function requestBluetoothAction(action: "on" | "off" | "discoverable") {
+    setRequesting(true);
+    setMobileError("");
+    setMobileNotice("");
+    try {
+      const status = await post<BluetoothStatus>("/api/mobile/bluetooth", { action }, csrfToken);
+      setBluetooth(status);
+      setMobileNotice(action === "discoverable"
+        ? "The Pi is discoverable to nearby phones for three minutes."
+        : `Bluetooth turned ${action}.`);
+    } catch (caught) {
+      setMobileError(caught instanceof Error ? caught.message : "Bluetooth could not be changed");
+    } finally {
+      setRequesting(false);
+    }
+  }
 
   async function createPairingCode() {
     setRequesting(true);
@@ -662,6 +693,25 @@ function SettingsPage({ csrfToken }: { csrfToken: string }) {
             <div><h2>Android companion</h2><p>Pair the phone app over Bluetooth to receive live Pi and car status and contribute phone GPS.</p></div>
           </div>
           {mobileError && <div className="form-error" role="alert"><WarningCircle size={20} />{mobileError}</div>}
+          {mobileNotice && <div className="network-notice" role="status"><CheckCircle size={20} />{mobileNotice}</div>}
+          <div className="bluetooth-control">
+            <div className="bluetooth-state">
+              <span className={`client-dot ${bluetooth?.powered ? "online" : ""}`} />
+              <div>
+                <strong>{!bluetooth ? "Checking Bluetooth…" : !bluetooth.supported ? "Bluetooth unavailable" : bluetooth.powered ? "Bluetooth on" : "Bluetooth off"}</strong>
+                <small>{bluetooth?.message ?? "Reading the Pi radio state."}</small>
+              </div>
+              {bluetooth?.discoverable && <span className="bluetooth-visible">Discoverable</span>}
+            </div>
+            <div className="bluetooth-actions">
+              <button className="secondary-button text-button" onClick={() => void requestBluetoothAction(bluetooth?.powered ? "off" : "on")} disabled={!bluetooth?.supported || requesting}>
+                <Power size={21} />Turn {bluetooth?.powered ? "off" : "on"}
+              </button>
+              <button className="secondary-button text-button" onClick={() => void requestBluetoothAction("discoverable")} disabled={!bluetooth?.supported || requesting || bluetooth.discoverable}>
+                <Bluetooth size={21} />{bluetooth?.discoverable ? "Visible now" : "Make discoverable"}
+              </button>
+            </div>
+          </div>
           {pairingCode ? <div className="pairing-code" role="status">
             <span>Enter this code in the Android app</span>
             <strong>{pairingCode.code}</strong>

web/src/api.ts

@@ -122,6 +122,14 @@ export type MobileDevice = {
   revokedAt: string | null;
 };
 
+export type BluetoothStatus = {
+  supported: boolean;
+  powered: boolean;
+  discoverable: boolean;
+  pairable: boolean;
+  message: string;
+};
+
 export type CarTelemetry = {
   available: true;
   collectedAt: string;
@@ -262,6 +270,10 @@ export async function getMobileDevices(): Promise<MobileDevice[]> {
   return response.devices;
 }
 
+export async function getBluetoothStatus(): Promise<BluetoothStatus> {
+  return parseResponse<BluetoothStatus>(await fetch("/api/mobile/bluetooth", { credentials: "same-origin" }));
+}
+
 export async function revokeMobileDevice(id: string, csrfToken: string): Promise<void> {
   await parseResponse(await fetch(`/api/mobile/devices/${encodeURIComponent(id)}`, {
     method: "DELETE",

web/src/styles.css

@@ -139,6 +139,13 @@ button:disabled { opacity: 0.55; cursor: not-allowed; }
 
 .settings-page { min-width: 0; width: 100%; display: grid; gap: 18px; }
 .mobile-settings-layout { grid-template-columns: minmax(340px, 0.8fr) minmax(420px, 1.2fr); }
+.bluetooth-control { display: grid; gap: 14px; margin: 22px 0; padding: 17px; background: #10140f; border: 1px solid var(--line); border-radius: 11px; }
+.bluetooth-state { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; }
+.bluetooth-state > div { min-width: 0; display: grid; gap: 4px; }
+.bluetooth-state small { overflow: hidden; color: var(--muted); font-size: 0.74rem; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
+.bluetooth-visible { padding: 5px 8px; color: var(--accent); background: rgba(185, 231, 105, 0.08); border: 1px solid rgba(185, 231, 105, 0.22); border-radius: 999px; font-size: 0.66rem; font-weight: 750; text-transform: uppercase; }
+.bluetooth-actions { display: flex; flex-wrap: wrap; gap: 9px; }
+.bluetooth-actions button { min-height: 44px; }
 .pairing-code { display: grid; justify-items: center; gap: 8px; margin: 28px 0 20px; padding: 24px; background: #10140f; border: 1px solid var(--line); border-radius: 12px; }
 .pairing-code span, .pairing-code small { color: var(--muted); font-size: 0.78rem; }
 .pairing-code strong { color: var(--accent); font: 800 2.7rem/1 ui-monospace, "Cascadia Code", monospace; letter-spacing: 0.18em; }
@@ -273,6 +280,10 @@ button:disabled { opacity: 0.55; cursor: not-allowed; }
   .settings-tabs button { flex: 1; justify-content: center; padding: 0 10px; }
   .power-actions { grid-template-columns: 1fr; }
   .power-actions .secondary-button { width: 100%; padding: 0 18px; font-size: inherit; }
+  .bluetooth-actions { flex-direction: column; }
+  .bluetooth-actions button { width: 100%; padding: 0 18px; font-size: inherit; }
+  .bluetooth-state { grid-template-columns: auto minmax(0, 1fr); }
+  .bluetooth-visible { grid-column: 2; justify-self: start; }
   .terminal-host { height: 58dvh; min-height: 320px; }
   .skeleton-grid { grid-template-columns: 1fr; }
 }