diff --git a/BrewBar/BrewBarApp.swift b/BrewBar/BrewBarApp.swift
index a57dd7f..d7b4533 100644
--- a/BrewBar/BrewBarApp.swift
+++ b/BrewBar/BrewBarApp.swift
@@ -20,6 +20,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     var versionItem: NSMenuItem!
 
     var logWindow: LogWindowController?
+    var settingsWindow: SettingsWindowController?
     var logBuffer: String = ""
 
     var brewPath: String?
@@ -68,40 +69,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
         menu.addItem(NSMenuItem.separator())
 
-        let intervalItem = NSMenuItem(title: "⏱ Refresh Interval", action: nil, keyEquivalent: "")
-        let intervalSubmenu = NSMenu()
-
-        let options: [(String, TimeInterval)] = [
-            ("1 heure", 3600),
-            ("6 heures", 21600),
-        ]
-
-        for (label, interval) in options {
-            let item = NSMenuItem(title: label, action: #selector(setRefreshInterval(_:)), keyEquivalent: "")
-            item.representedObject = interval
-            intervalSubmenu.addItem(item)
-        }
-
-        let customMenuItem = NSMenuItem()
-        let customView = NSView(frame: NSRect(x: 0, y: 0, width: 200, height: 30))
-
-        let textField = NSTextField(frame: NSRect(x: 10, y: 4, width: 120, height: 22))
-        textField.placeholderString = "Secondes..."
-        textField.stringValue = "\(Int(refreshInterval))"
-
-        let confirmButton = NSButton(frame: NSRect(x: 138, y: 4, width: 52, height: 22))
-        confirmButton.title = "✓ Set"
-        confirmButton.bezelStyle = .rounded
-        confirmButton.target = self
-        confirmButton.action = #selector(applyCustomInterval(_:))
-
-        customView.addSubview(textField)
-        customView.addSubview(confirmButton)
-        customMenuItem.view = customView
-        intervalSubmenu.addItem(customMenuItem)
-
-        intervalItem.submenu = intervalSubmenu
-        menu.addItem(intervalItem)
+        menu.addItem(NSMenuItem(title: "⚙️ Settings…", action: #selector(showSettings), keyEquivalent: ","))
 
         versionItem = NSMenuItem(title: "🏷 Brew: ...", action: nil, keyEquivalent: "")
         menu.addItem(versionItem)
@@ -141,20 +109,15 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         }
     }
 
-    @objc func setRefreshInterval(_ sender: NSMenuItem) {
-        guard let interval = sender.representedObject as? TimeInterval else { return }
-        refreshInterval = interval // ← le set sauvegarde dans UserDefaults
-        restartTimer()
-    }
-
-    @objc func applyCustomInterval(_ sender: NSButton) {
-        guard let view = sender.superview,
-              let textField = view.subviews.first(where: { $0 is NSTextField }) as? NSTextField,
-              let seconds = Int(textField.stringValue), seconds > 0 else { return }
-
-        refreshInterval = TimeInterval(seconds)
-        restartTimer()
-        statusItem.menu?.cancelTracking()
+    @objc func showSettings() {
+        if settingsWindow == nil {
+            settingsWindow = SettingsWindowController(appDelegate: self)
+        }
+        settingsWindow?.syncUI()
+        settingsWindow?.showWindow(nil)
+        // accessory app: without activation the window can open behind others
+        NSApp.activate(ignoringOtherApps: true)
+        settingsWindow?.window?.makeKeyAndOrderFront(nil)
     }
 
     func resolveBrewPath() -> String {
diff --git a/BrewBar/SettingsWindowController.swift b/BrewBar/SettingsWindowController.swift
new file mode 100644
index 0000000..48579c4
--- /dev/null
+++ b/BrewBar/SettingsWindowController.swift
@@ -0,0 +1,127 @@
+import Cocoa
+
+class SettingsWindowController: NSWindowController {
+    weak var appDelegate: AppDelegate?
+
+    let presets: [(label: String, interval: TimeInterval)] = [
+        ("30 minutes", 1800),
+        ("1 hour", 3600),
+        ("6 hours", 21600),
+        ("12 hours", 43200),
+        ("24 hours", 86400),
+    ]
+
+    var intervalPopup: NSPopUpButton!
+    var customMinutesField: NSTextField!
+
+    convenience init(appDelegate: AppDelegate) {
+        let window = NSWindow(
+            contentRect: NSRect(x: 0, y: 0, width: 380, height: 200),
+            styleMask: [.titled, .closable],
+            backing: .buffered,
+            defer: false
+        )
+        window.title = "BrewBar Settings"
+        // the controller keeps the window alive; without this, closing the
+        // window would deallocate it and reopening would crash
+        window.isReleasedWhenClosed = false
+
+        self.init(window: window)
+        self.appDelegate = appDelegate
+
+        buildUI()
+        syncUI()
+        window.center()
+    }
+
+    // MARK: - Layout
+
+    func buildUI() {
+        guard let contentView = window?.contentView else { return }
+
+        intervalPopup = NSPopUpButton()
+        for preset in presets {
+            intervalPopup.addItem(withTitle: preset.label)
+        }
+        intervalPopup.addItem(withTitle: "Custom")
+        intervalPopup.target = self
+        intervalPopup.action = #selector(presetPicked(_:))
+
+        customMinutesField = NSTextField()
+        customMinutesField.placeholderString = "60"
+        customMinutesField.alignment = .right
+        customMinutesField.target = self
+        customMinutesField.action = #selector(customMinutesEntered(_:))
+        customMinutesField.widthAnchor.constraint(equalToConstant: 60).isActive = true
+
+        let frequencyRow = NSStackView(views: [
+            NSTextField(labelWithString: "Check for updates every:"),
+            intervalPopup,
+        ])
+        frequencyRow.orientation = .horizontal
+
+        let customRow = NSStackView(views: [
+            customMinutesField,
+            NSTextField(labelWithString: "minutes"),
+        ])
+        customRow.orientation = .horizontal
+
+        let stack = NSStackView(views: [
+            frequencyRow,
+            customRow,
+        ])
+        stack.orientation = .vertical
+        stack.alignment = .leading
+        stack.spacing = 12
+
+        stack.translatesAutoresizingMaskIntoConstraints = false
+        contentView.addSubview(stack)
+        NSLayoutConstraint.activate([
+            stack.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 20),
+            stack.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 20),
+            stack.trailingAnchor.constraint(lessThanOrEqualTo: contentView.trailingAnchor, constant: -20),
+            stack.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -20),
+        ])
+
+        contentView.layoutSubtreeIfNeeded()
+        window?.setContentSize(contentView.fittingSize)
+    }
+
+    /// Push current values into the controls. Called on every open, since
+    /// values may have changed while the window was closed.
+    func syncUI() {
+        guard let appDelegate else { return }
+
+        let interval = appDelegate.refreshInterval
+        if let presetIndex = presets.firstIndex(where: { $0.interval == interval }) {
+            intervalPopup.selectItem(at: presetIndex)
+        } else {
+            intervalPopup.selectItem(at: presets.count) // Custom
+        }
+        customMinutesField.stringValue = "\(Int(interval / 60))"
+    }
+
+    // MARK: - Actions
+
+    @objc func presetPicked(_ sender: NSPopUpButton) {
+        guard sender.indexOfSelectedItem < presets.count else {
+            window?.makeFirstResponder(customMinutesField)
+            return
+        }
+        applyInterval(presets[sender.indexOfSelectedItem].interval)
+    }
+
+    @objc func customMinutesEntered(_ sender: NSTextField) {
+        guard let minutes = Int(sender.stringValue), minutes > 0 else {
+            syncUI() // reject invalid input by restoring the current value
+            return
+        }
+        applyInterval(TimeInterval(minutes * 60))
+    }
+
+    func applyInterval(_ interval: TimeInterval) {
+        appDelegate?.refreshInterval = interval
+        appDelegate?.restartTimer()
+        syncUI()
+    }
+}