Голосовые сообщения - анимация кнопки микрофона + панель записи с таймером

Rosetta/Core/Data/Database/DatabaseManager.swift

@@ -16,8 +16,10 @@ final class DatabaseManager {
         "v5_full_schema_superset_parity",
         "v6_bidirectional_alias_sync",
         "v7_sync_cursor_reconcile_and_perf_indexes",
+        "v8_last_message_sender_key",
     ]
     nonisolated static let migrationV7SyncCursorReconcile = "v7_sync_cursor_reconcile_and_perf_indexes"
+    nonisolated static let migrationV8LastMessageSenderKey = "v8_last_message_sender_key"
 
     private var dbPool: DatabasePool?
     private var currentAccount: String = ""
@@ -783,6 +785,15 @@ final class DatabaseManager {
             )
         }
 
+        // MARK: v8 — last_message_sender_key (group chat preview: "Alice: hey")
+
+        migrator.registerMigration("v8_last_message_sender_key") { db in
+            let cols = Set(try db.columns(in: "dialogs").map(\.name))
+            if !cols.contains("last_message_sender_key") {
+                try db.execute(sql: "ALTER TABLE dialogs ADD COLUMN last_message_sender_key TEXT NOT NULL DEFAULT ''")
+            }
+        }
+
         try migrator.migrate(pool)
         dbPool = pool
 

Rosetta/Core/Data/Database/DialogRecord.swift

@@ -23,6 +23,7 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
     var lastMessageFromMe: Int
     var lastMessageDelivered: Int
     var lastMessageRead: Int
+    var lastMessageSenderKey: String
 
     // MARK: - Column mapping
 
@@ -43,6 +44,7 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
         case lastMessageFromMe = "last_message_from_me"
         case lastMessageDelivered = "last_message_delivered"
         case lastMessageRead = "last_message_read"
+        case lastMessageSenderKey = "last_message_sender_key"
     }
 
     enum CodingKeys: String, CodingKey {
@@ -62,6 +64,7 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
         case lastMessageFromMe = "last_message_from_me"
         case lastMessageDelivered = "last_message_delivered"
         case lastMessageRead = "last_message_read"
+        case lastMessageSenderKey = "last_message_sender_key"
     }
 
     // MARK: - Auto-increment
@@ -73,7 +76,7 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
     // MARK: - Conversions
 
     func toDialog() -> Dialog {
-        Dialog(
+        var d = Dialog(
             id: opponentKey,
             account: account,
             opponentKey: opponentKey,
@@ -92,6 +95,8 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
             lastMessageDelivered: DeliveryStatus(rawValue: lastMessageDelivered) ?? .waiting,
             lastMessageRead: lastMessageRead != 0
         )
+        d.lastMessageSenderKey = lastMessageSenderKey
+        return d
     }
 
     static func from(_ dialog: Dialog) -> DialogRecord {
@@ -112,7 +117,8 @@ struct DialogRecord: Codable, FetchableRecord, MutablePersistableRecord, Sendabl
             isMuted: dialog.isMuted ? 1 : 0,
             lastMessageFromMe: dialog.lastMessageFromMe ? 1 : 0,
             lastMessageDelivered: dialog.lastMessageDelivered.rawValue,
-            lastMessageRead: dialog.lastMessageRead ? 1 : 0
+            lastMessageRead: dialog.lastMessageRead ? 1 : 0,
+            lastMessageSenderKey: dialog.lastMessageSenderKey
         )
     }
 }

Rosetta/Core/Data/Models/Dialog.swift

@@ -56,6 +56,9 @@ struct Dialog: Identifiable, Codable, Equatable {
     /// Desktop parity: true when an unread group message mentions the current user.
     var hasMention: Bool = false
 
+    /// Sender public key of the last message (for "Alice: hey" group chat preview).
+    var lastMessageSenderKey: String = ""
+
     // MARK: - Computed
 
     var isSavedMessages: Bool { opponentKey == account }

Rosetta/Core/Data/Repositories/DialogRepository.swift

@@ -166,6 +166,7 @@ final class DialogRepository {
             case .avatar: lastMessageText = "Avatar"
             case .messages: lastMessageText = "Forwarded message"
             case .call: lastMessageText = "Call"
+            @unknown default: lastMessageText = "Attachment"
             }
         } else if textIsEmpty {
             lastMessageText = ""
@@ -196,6 +197,8 @@ final class DialogRepository {
         dialog.lastMessageDelivered = lastFromMe ? lastMsg.deliveryStatus : .delivered
         // Android parity: separate read flag from last outgoing message's is_read column.
         dialog.lastMessageRead = lastFromMe ? lastMsg.isRead : false
+        // Group sender key for "Alice: hey" chat list preview
+        dialog.lastMessageSenderKey = lastMsg.fromPublicKey
 
         dialogs[opponentKey] = dialog
         _sortedKeysCache = nil
@@ -382,8 +385,8 @@ final class DialogRepository {
                         INSERT INTO dialogs (account, opponent_key, opponent_title, opponent_username,
                             last_message, last_message_timestamp, unread_count, is_online, last_seen,
                             verified, i_have_sent, is_pinned, is_muted, last_message_from_me,
-                            last_message_delivered, last_message_read)
+                            last_message_delivered, last_message_read, last_message_sender_key)
-                        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                         ON CONFLICT(account, opponent_key) DO UPDATE SET
                             opponent_title = excluded.opponent_title,
                             opponent_username = excluded.opponent_username,
@@ -398,7 +401,8 @@ final class DialogRepository {
                             is_muted = excluded.is_muted,
                             last_message_from_me = excluded.last_message_from_me,
                             last_message_delivered = excluded.last_message_delivered,
-                            last_message_read = excluded.last_message_read
+                            last_message_read = excluded.last_message_read,
+                            last_message_sender_key = excluded.last_message_sender_key
                         """,
                     arguments: [
                         dialog.account, dialog.opponentKey, dialog.opponentTitle, dialog.opponentUsername,
@@ -406,7 +410,7 @@ final class DialogRepository {
                         dialog.isOnline ? 1 : 0, dialog.lastSeen, dialog.verified,
                         dialog.iHaveSent ? 1 : 0, dialog.isPinned ? 1 : 0, dialog.isMuted ? 1 : 0,
                         dialog.lastMessageFromMe ? 1 : 0, dialog.lastMessageDelivered.rawValue,
-                        dialog.lastMessageRead ? 1 : 0
+                        dialog.lastMessageRead ? 1 : 0, dialog.lastMessageSenderKey
                     ]
                 )
             }

Rosetta/Core/Network/Protocol/Packets/Packet.swift

@@ -88,6 +88,7 @@ enum AttachmentType: Int, Codable, Sendable {
     case file = 2
     case avatar = 3
     case call = 4
+    case voice = 5
 
     /// Android parity: `fromInt() ?: UNKNOWN`. Fallback to `.image` for unknown values
     /// so a single unknown type doesn't crash the entire [MessageAttachment] array decode.

Rosetta/Core/Services/AudioRecorder.swift

@@ -0,0 +1,187 @@
+import AVFAudio
+import Foundation
+import QuartzCore
+import os
+
+// MARK: - Recording State
+
+enum AudioRecordingState: Sendable {
+    case idle
+    case recording(duration: TimeInterval, micLevel: Float)
+    case finished(url: URL, duration: TimeInterval, waveform: [Float])
+}
+
+// MARK: - AudioRecorder
+
+/// Records voice messages using AVAudioRecorder.
+/// Exposes mic level for animation and collects waveform samples.
+@MainActor
+final class AudioRecorder: NSObject {
+
+    private let logger = Logger(subsystem: "com.rosetta.messenger", category: "AudioRecorder")
+
+    private(set) var state: AudioRecordingState = .idle
+    private(set) var micLevel: Float = 0
+
+    var onLevelUpdate: ((TimeInterval, Float) -> Void)?
+    var onFinished: ((URL, TimeInterval, [Float]) -> Void)?
+
+    private var recorder: AVAudioRecorder?
+    private var displayLink: CADisplayLink?
+    private var waveformSamples: [Float] = []
+    private var lastSampleTime: TimeInterval = 0
+    private let sampleInterval: TimeInterval = 1.0 / 30.0
+
+    private var fileURL: URL {
+        let tmp = FileManager.default.temporaryDirectory
+        return tmp.appendingPathComponent("rosetta_voice_\(UUID().uuidString).m4a")
+    }
+
+    @discardableResult
+    func startRecording() -> Bool {
+        guard case .idle = state else {
+            logger.warning("[AudioRecorder] startRecording called while not idle")
+            return false
+        }
+
+        let session = AVAudioSession.sharedInstance()
+        do {
+            try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker])
+            try session.setActive(true)
+        } catch {
+            logger.error("[AudioRecorder] Audio session failed: \(error.localizedDescription)")
+            return false
+        }
+
+        let url = fileURL
+        let settings: [String: Any] = [
+            AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
+            AVSampleRateKey: 48000,
+            AVNumberOfChannelsKey: 1,
+            AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue,
+            AVEncoderBitRateKey: 64000
+        ]
+
+        do {
+            let rec = try AVAudioRecorder(url: url, settings: settings)
+            rec.isMeteringEnabled = true
+            rec.delegate = self
+            rec.prepareToRecord()
+            guard rec.record() else {
+                logger.error("[AudioRecorder] record() returned false")
+                return false
+            }
+            recorder = rec
+            waveformSamples = []
+            lastSampleTime = 0
+            micLevel = 0
+            state = .recording(duration: 0, micLevel: 0)
+            startDisplayLink()
+            logger.info("[AudioRecorder] Started: \(url.lastPathComponent)")
+            return true
+        } catch {
+            logger.error("[AudioRecorder] Init failed: \(error.localizedDescription)")
+            return false
+        }
+    }
+
+    func stopRecording() {
+        guard let rec = recorder, rec.isRecording else { return }
+        let duration = rec.currentTime
+        rec.stop()
+        stopDisplayLink()
+        let url = rec.url
+        state = .finished(url: url, duration: duration, waveform: waveformSamples)
+        onFinished?(url, duration, waveformSamples)
+        logger.info("[AudioRecorder] Stopped: \(String(format: "%.1f", duration))s")
+        recorder = nil
+    }
+
+    func cancelRecording() {
+        guard let rec = recorder else { reset(); return }
+        let url = rec.url
+        rec.stop()
+        stopDisplayLink()
+        try? FileManager.default.removeItem(at: url)
+        logger.info("[AudioRecorder] Cancelled")
+        recorder = nil
+        reset()
+    }
+
+    func reset() {
+        stopDisplayLink()
+        recorder = nil
+        micLevel = 0
+        waveformSamples = []
+        state = .idle
+    }
+
+    func recordedData() -> Data? {
+        guard case .finished(let url, _, _) = state else { return nil }
+        return try? Data(contentsOf: url)
+    }
+
+    // MARK: - Display Link
+
+    private func startDisplayLink() {
+        let link = CADisplayLink(target: self, selector: #selector(displayLinkTick))
+        link.add(to: .main, forMode: .common)
+        displayLink = link
+    }
+
+    private func stopDisplayLink() {
+        displayLink?.invalidate()
+        displayLink = nil
+    }
+
+    @objc private func displayLinkTick() {
+        guard let rec = recorder, rec.isRecording else { return }
+        rec.updateMeters()
+        let power = rec.averagePower(forChannel: 0)
+        let normalized = Self.normalizeMicLevel(power)
+        micLevel = normalized
+        let duration = rec.currentTime
+        state = .recording(duration: duration, micLevel: normalized)
+        if duration - lastSampleTime >= sampleInterval {
+            waveformSamples.append(normalized)
+            lastSampleTime = duration
+        }
+        onLevelUpdate?(duration, normalized)
+    }
+
+    static func normalizeMicLevel(_ power: Float) -> Float {
+        let minDb: Float = -60
+        let clamped = max(minDb, min(power, 0))
+        let normalized = (clamped - minDb) / (-minDb)
+        return normalized * normalized
+    }
+
+    static func requestMicrophonePermission() async -> Bool {
+        let status = AVAudioSession.sharedInstance().recordPermission
+        switch status {
+        case .granted: return true
+        case .undetermined:
+            return await withCheckedContinuation { continuation in
+                AVAudioSession.sharedInstance().requestRecordPermission { granted in
+                    continuation.resume(returning: granted)
+                }
+            }
+        case .denied: return false
+        @unknown default: return false
+        }
+    }
+}
+
+extension AudioRecorder: AVAudioRecorderDelegate {
+    nonisolated func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
+        Task { @MainActor in
+            if !flag { logger.warning("[AudioRecorder] Finished unsuccessfully"); reset() }
+        }
+    }
+    nonisolated func audioRecorderEncodeErrorDidOccur(_ recorder: AVAudioRecorder, error: Error?) {
+        Task { @MainActor in
+            logger.error("[AudioRecorder] Encode error: \(error?.localizedDescription ?? "unknown")")
+            cancelRecording()
+        }
+    }
+}

Rosetta/DesignSystem/Colors.swift

@@ -48,10 +48,10 @@ enum RosettaColors {
         static let backgroundSecondary = Color(hex: 0xF2F2F7) // iOS system grouped bg
         static let surface = Color(hex: 0xF5F5F5)
         static let text = Color.black
-        static let textSecondary = Color(hex: 0x3C3C43).opacity(0.6) // Figma subtitle gray
+        static let textSecondary = Color(hex: 0x8E8E93) // Telegram: dateTextColor/messageTextColor
         static let textTertiary = Color(hex: 0x3C3C43).opacity(0.3) // Figma hint gray
         static let border = Color(hex: 0xE0E0E0)
-        static let divider = Color(hex: 0xEEEEEE)
+        static let divider = Color(hex: 0xC8C7CC) // Telegram: itemSeparatorColor
         static let messageBubble = Color(hex: 0xF5F5F5)
         static let messageBubbleOwn = Color(hex: 0xDCF8C6)
         static let inputBackground = Color(hex: 0xF2F3F5)
@@ -66,10 +66,10 @@ enum RosettaColors {
         static let pinnedSectionBackground = Color(hex: 0x1C1C1D)
         static let surface = Color(hex: 0x242424)
         static let text = Color.white
-        static let textSecondary = Color(hex: 0x8E8E93)
+        static let textSecondary = Color(hex: 0x8D8E93) // Telegram: dateTextColor/messageTextColor
         static let textTertiary = Color(hex: 0x666666)
         static let border = Color(hex: 0x2E2E2E)
-        static let divider = Color(hex: 0x333333)
+        static let divider = Color(UIColor(red: 0x54/255, green: 0x54/255, blue: 0x58/255, alpha: 0.55)) // Telegram: 0x545458 @ 55%
         static let messageBubble = Color(hex: 0x2A2A2A)
         static let messageBubbleOwn = Color(hex: 0x263341)
         static let inputBackground = Color(hex: 0x2A2A2A)
@@ -98,9 +98,14 @@ enum RosettaColors {
         static let messageBubbleOwn = RosettaColors.adaptive(light: RosettaColors.Light.messageBubbleOwn, dark: RosettaColors.Dark.messageBubbleOwn)
         static let inputBackground = RosettaColors.adaptive(light: RosettaColors.Light.inputBackground, dark: RosettaColors.Dark.inputBackground)
         static let pinnedSectionBackground = RosettaColors.adaptive(
-            light: Color(hex: 0xF2F2F7),
+            light: Color(hex: 0xF7F7F7), // Telegram: pinnedItemBackgroundColor
             dark: RosettaColors.Dark.pinnedSectionBackground
         )
+        /// Muted badge background (Telegram: unreadBadgeInactiveBackgroundColor)
+        static let badgeInactive = RosettaColors.adaptive(
+            light: Color(hex: 0xB6B6BB),
+            dark: Color(hex: 0x666666)
+        )
         static let searchBarFill = RosettaColors.adaptive(
             light: Color.black.opacity(0.08),
             dark: Color.white.opacity(0.08)

Rosetta/DesignSystem/Components/VoiceBlobView.swift

@@ -0,0 +1,398 @@
+import QuartzCore
+import UIKit
+
+// MARK: - VoiceBlobView
+
+/// Three-layer animated blob visualization for voice recording.
+/// Ported from Telegram-iOS `AudioBlob/Sources/BlobView.swift`.
+///
+/// Architecture:
+/// - Small blob (innermost): circle, solid fill, subtle scale pulsing
+/// - Medium blob: organic shape morphing, 0.3 alpha
+/// - Big blob: organic shape morphing, 0.15 alpha
+///
+/// Audio level drives both blob scale and morph speed.
+final class VoiceBlobView: UIView {
+
+    typealias BlobRange = (min: CGFloat, max: CGFloat)
+
+    private let smallBlob: BlobLayer
+    private let mediumBlob: BlobLayer
+    private let bigBlob: BlobLayer
+
+    private let maxLevel: CGFloat
+    private var displayLink: CADisplayLink?
+
+    private var audioLevel: CGFloat = 0
+    private(set) var presentationAudioLevel: CGFloat = 0
+    private(set) var isAnimating = false
+
+    // MARK: - Init
+
+    init(
+        frame: CGRect = .zero,
+        maxLevel: CGFloat = 1.0,
+        smallBlobRange: BlobRange = (min: 0.45, max: 0.55),
+        mediumBlobRange: BlobRange = (min: 0.52, max: 0.87),
+        bigBlobRange: BlobRange = (min: 0.57, max: 1.0)
+    ) {
+        self.maxLevel = maxLevel
+
+        self.smallBlob = BlobLayer(
+            pointsCount: 8,
+            minRandomness: 0.1, maxRandomness: 0.5,
+            minSpeed: 0.2, maxSpeed: 0.6,
+            minScale: smallBlobRange.min, maxScale: smallBlobRange.max,
+            isCircle: true
+        )
+        self.mediumBlob = BlobLayer(
+            pointsCount: 8,
+            minRandomness: 1.0, maxRandomness: 1.0,
+            minSpeed: 0.9, maxSpeed: 4.0,
+            minScale: mediumBlobRange.min, maxScale: mediumBlobRange.max,
+            isCircle: false
+        )
+        self.bigBlob = BlobLayer(
+            pointsCount: 8,
+            minRandomness: 1.0, maxRandomness: 1.0,
+            minSpeed: 0.9, maxSpeed: 4.0,
+            minScale: bigBlobRange.min, maxScale: bigBlobRange.max,
+            isCircle: false
+        )
+
+        super.init(frame: frame)
+
+        layer.addSublayer(bigBlob.shapeLayer)
+        layer.addSublayer(mediumBlob.shapeLayer)
+        layer.addSublayer(smallBlob.shapeLayer)
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) { fatalError() }
+
+    deinit {
+        displayLink?.invalidate()
+    }
+
+    // MARK: - Public API
+
+    func setColor(_ color: UIColor) {
+        smallBlob.setColor(color)
+        mediumBlob.setColor(color.withAlphaComponent(0.3))
+        bigBlob.setColor(color.withAlphaComponent(0.15))
+    }
+
+    func updateLevel(_ level: CGFloat, immediately: Bool = false) {
+        let normalized = min(1, max(level / maxLevel, 0))
+
+        smallBlob.updateSpeedLevel(to: normalized)
+        mediumBlob.updateSpeedLevel(to: normalized)
+        bigBlob.updateSpeedLevel(to: normalized)
+
+        audioLevel = normalized
+        if immediately {
+            presentationAudioLevel = normalized
+        }
+    }
+
+    func startAnimating(immediately: Bool = false) {
+        guard !isAnimating else { return }
+        isAnimating = true
+
+        if !immediately {
+            animateScale(of: mediumBlob.shapeLayer, from: 0.75, to: 1.0, duration: 0.35)
+            animateScale(of: bigBlob.shapeLayer, from: 0.75, to: 1.0, duration: 0.35)
+        }
+
+        updateBlobsState()
+        startDisplayLink()
+    }
+
+    func stopAnimating(duration: Double = 0.15) {
+        guard isAnimating else { return }
+        isAnimating = false
+
+        animateScale(of: mediumBlob.shapeLayer, from: 1.0, to: 0.75, duration: duration)
+        animateScale(of: bigBlob.shapeLayer, from: 1.0, to: 0.75, duration: duration)
+
+        updateBlobsState()
+        stopDisplayLink()
+    }
+
+    // MARK: - Layout
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        let size = bounds.size
+        smallBlob.updateBounds(size)
+        mediumBlob.updateBounds(size)
+        bigBlob.updateBounds(size)
+        updateBlobsState()
+    }
+
+    // MARK: - Display Link
+
+    private func startDisplayLink() {
+        guard displayLink == nil else { return }
+        let link = CADisplayLink(target: self, selector: #selector(displayLinkTick))
+        link.add(to: .main, forMode: .common)
+        displayLink = link
+    }
+
+    private func stopDisplayLink() {
+        displayLink?.invalidate()
+        displayLink = nil
+    }
+
+    @objc private func displayLinkTick() {
+        presentationAudioLevel = presentationAudioLevel * 0.9 + audioLevel * 0.1
+
+        smallBlob.level = presentationAudioLevel
+        mediumBlob.level = presentationAudioLevel
+        bigBlob.level = presentationAudioLevel
+    }
+
+    // MARK: - Helpers
+
+    private func updateBlobsState() {
+        if isAnimating, bounds.size != .zero {
+            smallBlob.startAnimating()
+            mediumBlob.startAnimating()
+            bigBlob.startAnimating()
+        } else {
+            smallBlob.stopAnimating()
+            mediumBlob.stopAnimating()
+            bigBlob.stopAnimating()
+        }
+    }
+
+    private func animateScale(of layer: CAShapeLayer, from: CGFloat, to: CGFloat, duration: Double) {
+        let anim = CABasicAnimation(keyPath: "transform.scale")
+        anim.fromValue = from
+        anim.toValue = to
+        anim.duration = duration
+        anim.fillMode = .forwards
+        anim.isRemovedOnCompletion = false
+        anim.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
+        layer.add(anim, forKey: "blobScale")
+    }
+}
+
+// MARK: - BlobLayer
+
+/// Single animated blob shape using CAShapeLayer + Bezier morphing.
+/// Ported from Telegram's `BlobNode` (AsyncDisplayKit → pure CALayer).
+private final class BlobLayer {
+
+    let shapeLayer = CAShapeLayer()
+
+    let pointsCount: Int
+    let smoothness: CGFloat
+    let minRandomness: CGFloat
+    let maxRandomness: CGFloat
+    let minSpeed: CGFloat
+    let maxSpeed: CGFloat
+    let minScale: CGFloat
+    let maxScale: CGFloat
+    let isCircle: Bool
+
+    var level: CGFloat = 0 {
+        didSet {
+            guard abs(level - oldValue) > 0.01 else { return }
+            let lv = minScale + (maxScale - minScale) * level
+            CATransaction.begin()
+            CATransaction.setDisableActions(true)
+            shapeLayer.transform = CATransform3DMakeScale(lv, lv, 1)
+            CATransaction.commit()
+        }
+    }
+
+    private var speedLevel: CGFloat = 0
+    private var boundsSize: CGSize = .zero
+
+    init(
+        pointsCount: Int,
+        minRandomness: CGFloat,
+        maxRandomness: CGFloat,
+        minSpeed: CGFloat,
+        maxSpeed: CGFloat,
+        minScale: CGFloat,
+        maxScale: CGFloat,
+        isCircle: Bool
+    ) {
+        self.pointsCount = pointsCount
+        self.minRandomness = minRandomness
+        self.maxRandomness = maxRandomness
+        self.minSpeed = minSpeed
+        self.maxSpeed = maxSpeed
+        self.minScale = minScale
+        self.maxScale = maxScale
+        self.isCircle = isCircle
+
+        let angle = (CGFloat.pi * 2) / CGFloat(pointsCount)
+        self.smoothness = ((4.0 / 3.0) * tan(angle / 4.0)) / sin(angle / 2.0) / 2.0
+
+        shapeLayer.strokeColor = nil
+        shapeLayer.transform = CATransform3DMakeScale(minScale, minScale, 1)
+    }
+
+    func setColor(_ color: UIColor) {
+        shapeLayer.fillColor = color.cgColor
+    }
+
+    func updateSpeedLevel(to newLevel: CGFloat) {
+        speedLevel = max(speedLevel, newLevel)
+    }
+
+    func updateBounds(_ size: CGSize) {
+        boundsSize = size
+        shapeLayer.bounds = CGRect(origin: .zero, size: size)
+        shapeLayer.position = CGPoint(x: size.width / 2, y: size.height / 2)
+
+        if isCircle {
+            let hw = size.width / 2
+            shapeLayer.path = UIBezierPath(
+                roundedRect: CGRect(x: -hw, y: -hw, width: size.width, height: size.height),
+                cornerRadius: hw
+            ).cgPath
+        }
+    }
+
+    func startAnimating() {
+        guard !isCircle else { return }
+        animateToNewShape()
+    }
+
+    func stopAnimating() {
+        shapeLayer.removeAnimation(forKey: "path")
+    }
+
+    // MARK: - Shape Animation
+
+    private func animateToNewShape() {
+        guard !isCircle, boundsSize != .zero else { return }
+
+        if shapeLayer.path == nil {
+            let points = generateBlob(for: boundsSize)
+            shapeLayer.path = BezierSmooth.smoothCurve(through: points, length: boundsSize.width, smoothness: smoothness).cgPath
+        }
+
+        let nextPoints = generateBlob(for: boundsSize)
+        let nextPath = BezierSmooth.smoothCurve(through: nextPoints, length: boundsSize.width, smoothness: smoothness).cgPath
+
+        let anim = CABasicAnimation(keyPath: "path")
+        let previous = shapeLayer.path
+        shapeLayer.path = nextPath
+        anim.fromValue = previous
+        anim.toValue = nextPath
+        anim.duration = CFTimeInterval(1.0 / (minSpeed + (maxSpeed - minSpeed) * speedLevel))
+        anim.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
+        anim.isRemovedOnCompletion = false
+        anim.fillMode = .forwards
+        anim.delegate = AnimationDelegate { [weak self] finished in
+            if finished {
+                self?.animateToNewShape()
+            }
+        }
+
+        shapeLayer.add(anim, forKey: "path")
+        speedLevel = 0
+    }
+
+    private func generateBlob(for size: CGSize) -> [CGPoint] {
+        let randomness = minRandomness + (maxRandomness - minRandomness) * speedLevel
+        return blobPoints(count: pointsCount, randomness: randomness).map {
+            CGPoint(x: $0.x * size.width, y: $0.y * size.height)
+        }
+    }
+
+    private func blobPoints(count: Int, randomness: CGFloat) -> [CGPoint] {
+        let angle = (CGFloat.pi * 2) / CGFloat(count)
+        let rangeStart: CGFloat = 1.0 / (1.0 + randomness / 10.0)
+        let startAngle = angle * CGFloat(arc4random_uniform(100)) / 100.0
+
+        return (0..<count).map { i in
+            let rng = CGFloat(arc4random_uniform(1000)) / 1000.0
+            let randOffset = (rangeStart + rng * (1.0 - rangeStart)) / 2.0
+            let angleRandomness = angle * 0.1
+            let randAngle = angle + angle * ((angleRandomness * CGFloat(arc4random_uniform(100)) / 100.0) - angleRandomness * 0.5)
+            let px = sin(startAngle + CGFloat(i) * randAngle)
+            let py = cos(startAngle + CGFloat(i) * randAngle)
+            return CGPoint(x: px * randOffset, y: py * randOffset)
+        }
+    }
+}
+
+// MARK: - Animation Delegate Helper
+
+private final class AnimationDelegate: NSObject, CAAnimationDelegate {
+    let completion: (Bool) -> Void
+
+    init(completion: @escaping (Bool) -> Void) {
+        self.completion = completion
+    }
+
+    func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
+        completion(flag)
+    }
+}
+
+// MARK: - Bezier Smooth Curve
+
+/// Generates smooth closed Bezier curves through a set of points.
+/// Ported from Telegram's `UIBezierPath.smoothCurve` extension.
+private enum BezierSmooth {
+
+    static func smoothCurve(through points: [CGPoint], length: CGFloat, smoothness: CGFloat) -> UIBezierPath {
+        let smoothPoints = points.enumerated().map { index, curr -> SmoothPoint in
+            let prevIdx = index - 1
+            let prev = points[prevIdx >= 0 ? prevIdx : points.count + prevIdx]
+            let next = points[(index + 1) % points.count]
+
+            let angle: CGFloat = {
+                let dx = next.x - prev.x
+                let dy = -next.y + prev.y
+                let a = atan2(dy, dx)
+                return a < 0 ? abs(a) : 2 * .pi - a
+            }()
+
+            return SmoothPoint(
+                point: curr,
+                inAngle: angle + .pi,
+                inLength: smoothness * distance(prev, curr),
+                outAngle: angle,
+                outLength: smoothness * distance(curr, next)
+            )
+        }
+
+        let path = UIBezierPath()
+        path.move(to: smoothPoints[0].point)
+        for i in 0..<smoothPoints.count {
+            let curr = smoothPoints[i]
+            let next = smoothPoints[(i + 1) % smoothPoints.count]
+            path.addCurve(to: next.point, controlPoint1: curr.smoothOut(), controlPoint2: next.smoothIn())
+        }
+        path.close()
+        return path
+    }
+
+    private static func distance(_ a: CGPoint, _ b: CGPoint) -> CGFloat {
+        sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y))
+    }
+
+    private struct SmoothPoint {
+        let point: CGPoint
+        let inAngle: CGFloat
+        let inLength: CGFloat
+        let outAngle: CGFloat
+        let outLength: CGFloat
+
+        func smoothIn() -> CGPoint {
+            CGPoint(x: point.x + inLength * cos(inAngle), y: point.y + inLength * sin(inAngle))
+        }
+
+        func smoothOut() -> CGPoint {
+            CGPoint(x: point.x + outLength * cos(outAngle), y: point.y + outLength * sin(outAngle))
+        }
+    }
+}

Rosetta/Features/Chats/ChatDetail/ChatDetailView.swift

@@ -1502,6 +1502,7 @@ private extension ChatDetailView {
                 case .avatar: return "Avatar"
                 case .messages: return "Forwarded message"
                 case .call: return "Call"
+                @unknown default: return "Attachment"
                 }
             }
             return nil

Rosetta/Features/Chats/ChatDetail/ComposerView.swift

@@ -12,6 +12,12 @@ protocol ComposerViewDelegate: AnyObject {
     func composerDidCancelReply(_ composer: ComposerView)
     func composerUserDidType(_ composer: ComposerView)
     func composerKeyboardHeightDidChange(_ composer: ComposerView, height: CGFloat)
+
+    // Voice recording
+    func composerDidStartRecording(_ composer: ComposerView)
+    func composerDidFinishRecording(_ composer: ComposerView, sendImmediately: Bool)
+    func composerDidCancelRecording(_ composer: ComposerView)
+    func composerDidLockRecording(_ composer: ComposerView)
 }
 
 // MARK: - ComposerView
@@ -63,8 +69,8 @@ final class ComposerView: UIView, UITextViewDelegate {
     private let sendButton = UIButton(type: .system)
     private let sendCapsule = UIView()
 
-    // Mic button (glass circle, 42×42)
+    // Mic button (glass circle, 42×42) — custom control for recording gestures
-    private let micButton = UIButton(type: .system)
+    private let micButton = RecordingMicButton(frame: .zero)
     private let micGlass = TelegramGlassUIView(frame: .zero)
     private var attachIconLayer: CAShapeLayer?
     private var emojiIconLayer: CAShapeLayer?
@@ -92,6 +98,13 @@ final class ComposerView: UIView, UITextViewDelegate {
     private var isSendVisible = false
     private var isUpdatingText = false
 
+    // MARK: - Voice Recording
+
+    private let audioRecorder = AudioRecorder()
+    private var recordingOverlay: VoiceRecordingOverlay?
+    private var recordingPanel: VoiceRecordingPanel?
+    private(set) var isRecording = false
+
     // MARK: - Init
 
     override init(frame: CGRect) {
@@ -230,7 +243,7 @@ final class ComposerView: UIView, UITextViewDelegate {
         micButton.layer.addSublayer(micIcon)
         micIconLayer = micIcon
         micButton.tag = 4
-        micButton.addTarget(self, action: #selector(micTapped), for: .touchUpInside)
+        micButton.recordingDelegate = self
         addSubview(micButton)
 
         updateThemeColors()
@@ -583,19 +596,107 @@ final class ComposerView: UIView, UITextViewDelegate {
         }
     }
 
-    @objc private func micTapped() {
-        // Mic = placeholder for voice messages, acts as send when there's content
-        let text = (textView.text ?? "").trimmingCharacters(in: .whitespacesAndNewlines)
-        if !text.isEmpty {
-            delegate?.composerDidTapSend(self)
-        } else {
-            if !textView.isFirstResponder {
-                textView.becomeFirstResponder()
-            }
-        }
-    }
-
     @objc private func replyCancelTapped() {
         delegate?.composerDidCancelReply(self)
     }
 }
+
+// MARK: - RecordingMicButtonDelegate
+
+extension ComposerView: RecordingMicButtonDelegate {
+
+    func micButtonRecordingBegan(_ button: RecordingMicButton) {
+        guard audioRecorder.startRecording() else { return }
+        isRecording = true
+        guard let window else { return }
+
+        // 1. Overlay circles on mic button
+        let overlay = VoiceRecordingOverlay()
+        overlay.present(anchorView: micButton, in: window)
+        recordingOverlay = overlay
+
+        // 2. Recording panel (spans full width: attach area to mic button)
+        let panelX = horizontalPadding
+        let panelW = micButton.frame.minX - innerSpacing - horizontalPadding
+        let panel = VoiceRecordingPanel(frame: CGRect(
+            x: panelX,
+            y: inputContainer.frame.origin.y,
+            width: panelW,
+            height: inputContainer.frame.height
+        ))
+        panel.delegate = self
+        addSubview(panel)
+        panel.animateIn(panelWidth: panelW)
+        recordingPanel = panel
+
+        // 3. Feed audio level → overlay + timer
+        audioRecorder.onLevelUpdate = { [weak self] duration, level in
+            self?.recordingOverlay?.addMicLevel(CGFloat(level))
+            self?.recordingPanel?.updateDuration(duration)
+        }
+
+        // 4. Hide composer content (Telegram: textInput alpha→0, accessories alpha→0)
+        UIView.animate(withDuration: 0.15) {
+            self.inputContainer.alpha = 0
+            self.attachButton.alpha = 0
+            self.micGlass.alpha = 0
+            self.micIconLayer?.opacity = 0
+        }
+    }
+
+    func micButtonRecordingFinished(_ button: RecordingMicButton) {
+        dismissOverlayAndRestore()
+        button.resetState()
+    }
+
+    func micButtonRecordingCancelled(_ button: RecordingMicButton) {
+        dismissOverlayAndRestore()
+        button.resetState()
+    }
+
+    func micButtonRecordingLocked(_ button: RecordingMicButton) {
+        dismissOverlayAndRestore()
+        button.resetState()
+    }
+
+    func micButtonCancelTranslationChanged(_ button: RecordingMicButton, translation: CGFloat) {
+        let progress = min(1, abs(translation) / 150)
+        recordingOverlay?.dismissFactor = 1.0 - progress * 0.5
+        recordingPanel?.updateCancelTranslation(translation)
+    }
+
+    func micButtonLockProgressChanged(_ button: RecordingMicButton, progress: CGFloat) {
+        // Future: lock indicator
+    }
+
+    private func dismissOverlayAndRestore() {
+        isRecording = false
+        audioRecorder.onLevelUpdate = nil
+        audioRecorder.cancelRecording()
+
+        recordingOverlay?.dismiss()
+        recordingOverlay = nil
+
+        recordingPanel?.animateOut { [weak self] in
+            self?.recordingPanel = nil
+        }
+
+        // Restore composer content
+        UIView.animate(withDuration: 0.15) {
+            self.inputContainer.alpha = 1
+            self.attachButton.alpha = 1
+            self.micGlass.alpha = 1
+            self.micIconLayer?.opacity = 1
+        }
+        updateSendMicVisibility(animated: false)
+    }
+}
+
+// MARK: - VoiceRecordingPanelDelegate
+
+extension ComposerView: VoiceRecordingPanelDelegate {
+    func recordingPanelDidTapCancel(_ panel: VoiceRecordingPanel) {
+        dismissOverlayAndRestore()
+        micButton.resetState()
+    }
+}

Rosetta/Features/Chats/ChatDetail/NativeMessageList.swift

@@ -1425,6 +1425,24 @@ extension NativeMessageListController: ComposerViewDelegate {
             userInfo: ["height": height]
         )
     }
+
+    // MARK: - Voice Recording
+
+    func composerDidStartRecording(_ composer: ComposerView) {
+        // Recording started — handled by ComposerView internally
+    }
+
+    func composerDidFinishRecording(_ composer: ComposerView, sendImmediately: Bool) {
+        // Recording finished — will be wired to send pipeline later
+    }
+
+    func composerDidCancelRecording(_ composer: ComposerView) {
+        // Recording cancelled — no action needed
+    }
+
+    func composerDidLockRecording(_ composer: ComposerView) {
+        // Recording locked — UI handled by ComposerView
+    }
 }
 
 // MARK: - PreSizedCell

Rosetta/Features/Chats/ChatDetail/PendingAttachment.swift

@@ -59,6 +59,19 @@ struct PendingAttachment: Identifiable, Sendable {
         )
     }
 
+    /// Creates a PendingAttachment from a voice recording.
+    /// Duration in seconds, waveform is normalized [Float] array (0..1).
+    static func fromVoice(data: Data, duration: TimeInterval, waveform: [Float]) -> PendingAttachment {
+        return PendingAttachment(
+            id: generateRandomId(),
+            type: .voice,
+            data: data,
+            thumbnail: nil,
+            fileName: "voice_\(Int(duration))s.m4a",
+            fileSize: data.count
+        )
+    }
+
     // MARK: - Helpers
 
     /// Generates a random 8-character ID (desktop: `generateRandomKey(8)`).

Rosetta/Features/Chats/ChatDetail/RecordingMicButton.swift

@@ -0,0 +1,290 @@
+import QuartzCore
+import UIKit
+
+// MARK: - Recording State
+
+enum VoiceRecordingState {
+    case idle
+    case waiting         // finger down, waiting for threshold (0.15s)
+    case recording       // actively recording, finger held
+    case locked          // slid up past lock threshold, finger released
+    case cancelled       // slid left past cancel threshold
+    case finished        // finger released normally → send
+}
+
+// MARK: - RecordingMicButtonDelegate
+
+@MainActor
+protocol RecordingMicButtonDelegate: AnyObject {
+    /// Recording threshold reached (0.15s hold). Start actual recording.
+    func micButtonRecordingBegan(_ button: RecordingMicButton)
+
+    /// Finger released normally → send the recording.
+    func micButtonRecordingFinished(_ button: RecordingMicButton)
+
+    /// Slid left past cancel threshold → discard recording.
+    func micButtonRecordingCancelled(_ button: RecordingMicButton)
+
+    /// Slid up past lock threshold → lock into hands-free recording.
+    func micButtonRecordingLocked(_ button: RecordingMicButton)
+
+    /// Horizontal slide translation update for cancel indicator.
+    /// Value is negative (slide left), range roughly -150..0.
+    func micButtonCancelTranslationChanged(_ button: RecordingMicButton, translation: CGFloat)
+
+    /// Vertical lock progress update (0..1).
+    func micButtonLockProgressChanged(_ button: RecordingMicButton, progress: CGFloat)
+}
+
+// MARK: - RecordingMicButton
+
+/// Custom UIControl that handles voice recording gestures.
+/// Ported from Telegram's `TGModernConversationInputMicButton`.
+///
+/// Gesture mechanics:
+/// - Long press (0.15s) → begin recording
+/// - Slide left → cancel (threshold: -150px, haptic at -100px)
+/// - Slide up → lock (threshold: -110px, haptic at -60px)
+/// - Release → finish (send)
+final class RecordingMicButton: UIControl {
+
+    weak var recordingDelegate: RecordingMicButtonDelegate?
+
+    private(set) var recordingState: VoiceRecordingState = .idle
+
+    // MARK: - Gesture Thresholds (Telegram parity)
+
+    private let holdThreshold: TimeInterval = 0.15
+    private let cancelDistanceThreshold: CGFloat = -150
+    private let cancelHapticThreshold: CGFloat = -100
+    private let lockDistanceThreshold: CGFloat = -110
+    private let lockHapticThreshold: CGFloat = -60
+
+    // MARK: - Tracking State
+
+    private var touchStartLocation: CGPoint = .zero
+    private var holdTimer: Timer?
+    private var displayLink: CADisplayLink?
+
+    // Raw target values (set by touch events)
+    private var targetCancelTranslation: CGFloat = 0
+    private var targetLockTranslation: CGFloat = 0
+
+    // Smoothed values (updated by display link)
+    private var currentCancelTranslation: CGFloat = 0
+    private var currentLockTranslation: CGFloat = 0
+
+    // Haptic tracking
+    private var didCancelHaptic = false
+    private var didLockHaptic = false
+
+    // Haptic generators
+    private let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
+
+    // MARK: - Init
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) { fatalError() }
+
+    // MARK: - Touch Tracking
+
+    override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
+        guard recordingState == .idle else { return false }
+
+        touchStartLocation = touch.location(in: window)
+        recordingState = .waiting
+        targetCancelTranslation = 0
+        targetLockTranslation = 0
+        currentCancelTranslation = 0
+        currentLockTranslation = 0
+        didCancelHaptic = false
+        didLockHaptic = false
+
+        impactFeedback.prepare()
+
+        // Start hold timer — after 0.15s we begin recording
+        holdTimer = Timer.scheduledTimer(withTimeInterval: holdThreshold, repeats: false) { [weak self] _ in
+            Task { @MainActor in
+                self?.beginRecording()
+            }
+        }
+
+        return true
+    }
+
+    override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
+        guard recordingState == .waiting || recordingState == .recording else { return false }
+
+        let location = touch.location(in: window)
+        let distanceX = min(0, location.x - touchStartLocation.x)
+        let distanceY = min(0, location.y - touchStartLocation.y)
+
+        // Check if we moved enough to cancel the hold timer (before recording started)
+        if recordingState == .waiting {
+            let totalDistance = sqrt(distanceX * distanceX + distanceY * distanceY)
+            if totalDistance > 10 {
+                // Movement before threshold — cancel the timer, don't start recording
+                cancelHoldTimer()
+                recordingState = .idle
+                return false
+            }
+            return true
+        }
+
+        // Recording state — track slide gestures
+        targetCancelTranslation = distanceX
+        targetLockTranslation = distanceY
+
+        // Cancel haptic
+        if distanceX < cancelHapticThreshold, !didCancelHaptic {
+            didCancelHaptic = true
+            impactFeedback.impactOccurred()
+        }
+
+        // Lock haptic
+        if distanceY < lockHapticThreshold, !didLockHaptic {
+            didLockHaptic = true
+            impactFeedback.impactOccurred()
+        }
+
+        // Check cancel threshold
+        if distanceX < cancelDistanceThreshold {
+            commitCancel()
+            return false
+        }
+
+        // Check lock threshold
+        if distanceY < lockDistanceThreshold {
+            commitLock()
+            return false
+        }
+
+        return true
+    }
+
+    override func endTracking(_ touch: UITouch?, with event: UIEvent?) {
+        if recordingState == .waiting {
+            // Released before hold threshold — just a tap
+            cancelHoldTimer()
+            recordingState = .idle
+            return
+        }
+
+        if recordingState == .recording {
+            // Check velocity for quick flick gestures
+            if let touch {
+                let location = touch.location(in: window)
+                let distanceX = location.x - touchStartLocation.x
+                let distanceY = location.y - touchStartLocation.y
+
+                if distanceX < cancelDistanceThreshold / 2 {
+                    commitCancel()
+                    return
+                }
+                if distanceY < lockDistanceThreshold / 2 {
+                    commitLock()
+                    return
+                }
+            }
+
+            // Normal release → finish recording (send)
+            commitFinish()
+        }
+    }
+
+    override func cancelTracking(with event: UIEvent?) {
+        if recordingState == .recording {
+            // Touch cancelled (e.g. system gesture) → lock instead of cancel
+            commitLock()
+        } else {
+            cancelHoldTimer()
+            recordingState = .idle
+        }
+        stopDisplayLink()
+    }
+
+    // MARK: - State Transitions
+
+    private func beginRecording() {
+        guard recordingState == .waiting else { return }
+        recordingState = .recording
+        holdTimer = nil
+
+        impactFeedback.impactOccurred()
+        startDisplayLink()
+        recordingDelegate?.micButtonRecordingBegan(self)
+    }
+
+    private func commitCancel() {
+        guard recordingState == .recording else { return }
+        recordingState = .cancelled
+        stopDisplayLink()
+        recordingDelegate?.micButtonRecordingCancelled(self)
+    }
+
+    private func commitLock() {
+        guard recordingState == .recording else { return }
+        recordingState = .locked
+        stopDisplayLink()
+        impactFeedback.impactOccurred()
+        recordingDelegate?.micButtonRecordingLocked(self)
+    }
+
+    private func commitFinish() {
+        guard recordingState == .recording else { return }
+        recordingState = .finished
+        stopDisplayLink()
+        recordingDelegate?.micButtonRecordingFinished(self)
+    }
+
+    // MARK: - Public API
+
+    /// Reset to idle state (call after processing send/cancel/lock).
+    func resetState() {
+        cancelHoldTimer()
+        stopDisplayLink()
+        recordingState = .idle
+        targetCancelTranslation = 0
+        targetLockTranslation = 0
+        currentCancelTranslation = 0
+        currentLockTranslation = 0
+    }
+
+    // MARK: - Display Link
+
+    private func startDisplayLink() {
+        guard displayLink == nil else { return }
+        let link = CADisplayLink(target: self, selector: #selector(displayLinkUpdate))
+        link.add(to: .main, forMode: .common)
+        displayLink = link
+    }
+
+    private func stopDisplayLink() {
+        displayLink?.invalidate()
+        displayLink = nil
+    }
+
+    @objc private func displayLinkUpdate() {
+        // Smooth interpolation (Telegram: 0.7/0.3 blend)
+        currentCancelTranslation = currentCancelTranslation * 0.7 + targetCancelTranslation * 0.3
+        currentLockTranslation = currentLockTranslation * 0.7 + targetLockTranslation * 0.3
+
+        // Report cancel translation
+        recordingDelegate?.micButtonCancelTranslationChanged(self, translation: currentCancelTranslation)
+
+        // Report lock progress (0..1)
+        let lockProgress = min(1.0, abs(currentLockTranslation) / abs(lockDistanceThreshold))
+        recordingDelegate?.micButtonLockProgressChanged(self, progress: lockProgress)
+    }
+
+    // MARK: - Helpers
+
+    private func cancelHoldTimer() {
+        holdTimer?.invalidate()
+        holdTimer = nil
+    }
+}

Rosetta/Features/Chats/ChatDetail/VoiceRecordingOverlay.swift

@@ -0,0 +1,212 @@
+import QuartzCore
+import UIKit
+
+// MARK: - VoiceRecordingOverlay
+
+/// Telegram-exact recording overlay. Values from audit of:
+/// - TGModernConversationInputMicButton.m (lines 11-13, 909-938)
+/// - ChatTextInputAudioRecordingOverlayButton.swift (lines 8-173)
+///
+/// Z-order (back→front): outerCircle → innerCircle → micIcon
+/// Inner circle: 110pt, #0088FF, opaque
+/// Outer circle: 160pt, #0088FF alpha 0.2, scales with audio
+/// Mic icon: white SVG, 25x34pt, top-most layer
+final class VoiceRecordingOverlay {
+
+    // Telegram exact (lines 11-13 of TGModernConversationInputMicButton.m)
+    private let innerDiameter: CGFloat = 110
+    private let outerDiameter: CGFloat = 160
+    private var outerMinScale: CGFloat { innerDiameter / outerDiameter } // 0.6875
+
+    // Telegram exact: UIColor(rgb: 0x0088ff)
+    private let telegramBlue = UIColor(red: 0, green: 136/255.0, blue: 1.0, alpha: 1)
+
+    // MARK: - Views
+
+    private let containerView = UIView()
+    private let outerCircle = UIView()
+    private let innerCircle = UIView()
+    private let micIconLayer = CAShapeLayer()
+
+    // MARK: - Display Link
+
+    private var displayLink: CADisplayLink?
+    private var displayLinkTarget: DisplayLinkTarget?
+    private var animationStartTime: Double = 0
+    private var currentLevel: CGFloat = 0
+    private var inputLevel: CGFloat = 0
+
+    var dismissFactor: CGFloat = 1.0 {
+        didSet {
+            let s = max(0.3, min(dismissFactor, 1.0))
+            containerView.transform = CGAffineTransform(scaleX: s, y: s)
+        }
+    }
+
+    // MARK: - Init
+
+    init() {
+        containerView.isUserInteractionEnabled = false
+
+        // Outer circle: 160pt, #0088FF alpha 0.2
+        outerCircle.backgroundColor = telegramBlue.withAlphaComponent(0.2)
+        outerCircle.bounds = CGRect(origin: .zero, size: CGSize(width: outerDiameter, height: outerDiameter))
+        outerCircle.layer.cornerRadius = outerDiameter / 2
+
+        // Inner circle: 110pt, #0088FF opaque
+        innerCircle.backgroundColor = telegramBlue
+        innerCircle.bounds = CGRect(origin: .zero, size: CGSize(width: innerDiameter, height: innerDiameter))
+        innerCircle.layer.cornerRadius = innerDiameter / 2
+
+        // Mic icon SVG
+        configureMicIcon()
+
+        // Z-order: outer (back) → inner → icon (front)
+        containerView.addSubview(outerCircle)
+        containerView.addSubview(innerCircle)
+        containerView.layer.addSublayer(micIconLayer)
+    }
+
+    private func configureMicIcon() {
+        let viewBox = CGSize(width: 17.168, height: 23.555)
+        let targetSize = CGSize(width: 25, height: 34)
+
+        var parser = SVGPathParser(pathData: TelegramIconPath.microphone)
+        let cgPath = parser.parse()
+
+        let sx = targetSize.width / viewBox.width
+        let sy = targetSize.height / viewBox.height
+        micIconLayer.path = cgPath.copy(using: [CGAffineTransform(scaleX: sx, y: sy)])
+        micIconLayer.fillColor = UIColor.white.cgColor
+        micIconLayer.bounds = CGRect(origin: .zero, size: targetSize)
+    }
+
+    // MARK: - Present (Telegram exact: spring damping 0.55, duration 0.5s)
+
+    func present(anchorView: UIView, in window: UIWindow) {
+        guard let superview = anchorView.superview else { return }
+
+        // Telegram: centerOffset = (0, -1 + screenPixel)
+        var center = superview.convert(anchorView.center, to: window)
+        center.y -= 1.0
+
+        containerView.bounds = CGRect(origin: .zero, size: CGSize(width: outerDiameter, height: outerDiameter))
+        containerView.center = center
+        containerView.transform = .identity
+        containerView.alpha = 1
+
+        let mid = CGPoint(x: outerDiameter / 2, y: outerDiameter / 2)
+        outerCircle.center = mid
+        innerCircle.center = mid
+        CATransaction.begin()
+        CATransaction.setDisableActions(true)
+        micIconLayer.position = mid
+        CATransaction.commit()
+
+        window.addSubview(containerView)
+
+        // Start state: scale 0.2, alpha 0.2 (Telegram exact)
+        innerCircle.transform = CGAffineTransform(scaleX: 0.2, y: 0.2)
+        innerCircle.alpha = 0.2
+        outerCircle.transform = CGAffineTransform(scaleX: 0.2, y: 0.2)
+        outerCircle.alpha = 0.2
+        micIconLayer.opacity = 0.2
+
+        // Alpha fade: 0.15s (Telegram exact)
+        UIView.animate(withDuration: 0.15) {
+            self.innerCircle.alpha = 1
+            self.outerCircle.alpha = 1
+        }
+        let iconFade = CABasicAnimation(keyPath: "opacity")
+        iconFade.fromValue = 0.2
+        iconFade.toValue = 1.0
+        iconFade.duration = 0.15
+        micIconLayer.opacity = 1.0
+        micIconLayer.add(iconFade, forKey: "fadeIn")
+
+        // Spring scale: damping 0.55, duration 0.5s (Telegram exact)
+        // Inner → 1.0
+        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.55, initialSpringVelocity: 0, options: .beginFromCurrentState) {
+            self.innerCircle.transform = .identity
+        }
+        // Outer → outerMinScale (0.6875)
+        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.55, initialSpringVelocity: 0, options: .beginFromCurrentState) {
+            self.outerCircle.transform = CGAffineTransform(scaleX: self.outerMinScale, y: self.outerMinScale)
+        }
+
+        animationStartTime = CACurrentMediaTime()
+        startDisplayLink()
+    }
+
+    // MARK: - Dismiss (Telegram exact: 0.18s, scale→0.2, alpha→0)
+
+    func dismiss() {
+        stopDisplayLink()
+
+        UIView.animate(withDuration: 0.18, animations: {
+            self.innerCircle.transform = CGAffineTransform(scaleX: 0.2, y: 0.2)
+            self.innerCircle.alpha = 0
+            self.outerCircle.transform = CGAffineTransform(scaleX: 0.2, y: 0.2)
+            self.outerCircle.alpha = 0
+        })
+
+        let iconFade = CABasicAnimation(keyPath: "opacity")
+        iconFade.fromValue = 1.0
+        iconFade.toValue = 0.0
+        iconFade.duration = 0.18
+        iconFade.fillMode = .forwards
+        iconFade.isRemovedOnCompletion = false
+        micIconLayer.add(iconFade, forKey: "fadeOut")
+
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) { [weak self] in
+            self?.containerView.removeFromSuperview()
+            self?.micIconLayer.removeAllAnimations()
+            self?.micIconLayer.opacity = 1
+            self?.currentLevel = 0
+            self?.inputLevel = 0
+        }
+    }
+
+    // MARK: - Audio Level
+
+    func addMicLevel(_ level: CGFloat) {
+        inputLevel = level
+    }
+
+    // MARK: - Display Link (Telegram: displayLinkEvent, 0.8/0.2 smoothing)
+
+    private func startDisplayLink() {
+        guard displayLink == nil else { return }
+        let target = DisplayLinkTarget { [weak self] in self?.tick() }
+        let link = CADisplayLink(target: target, selector: #selector(DisplayLinkTarget.tick))
+        link.add(to: .main, forMode: .common)
+        displayLink = link
+        displayLinkTarget = target
+    }
+
+    private func stopDisplayLink() {
+        displayLink?.invalidate()
+        displayLink = nil
+        displayLinkTarget = nil
+    }
+
+    private func tick() {
+        // Telegram: wait 0.5s for spring to settle before reacting to audio
+        guard CACurrentMediaTime() > animationStartTime + 0.5 else { return }
+
+        // Telegram exact smoothing (ChatTextInputAudioRecordingOverlay line 162)
+        currentLevel = currentLevel * 0.8 + inputLevel * 0.2
+
+        // Telegram exact: outerCircleMinScale + currentLevel * (1.0 - outerCircleMinScale)
+        let scale = outerMinScale + currentLevel * (1.0 - outerMinScale)
+        outerCircle.transform = CGAffineTransform(scaleX: scale, y: scale)
+    }
+}
+
+// MARK: - DisplayLinkTarget
+
+private final class DisplayLinkTarget: NSObject {
+    let callback: () -> Void
+    init(_ callback: @escaping () -> Void) { self.callback = callback }
+    @objc func tick() { callback() }
+}

Rosetta/Features/Chats/ChatDetail/VoiceRecordingPanel.swift

@@ -0,0 +1,294 @@
+import QuartzCore
+import UIKit
+
+// MARK: - VoiceRecordingPanelDelegate
+
+@MainActor
+protocol VoiceRecordingPanelDelegate: AnyObject {
+    func recordingPanelDidTapCancel(_ panel: VoiceRecordingPanel)
+}
+
+// MARK: - VoiceRecordingPanel
+
+/// Recording bar shown inside the composer during voice recording.
+/// Telegram parity from ChatTextInputPanelNode.swift audit:
+/// - Red dot: 10×10, #FF2D55, keyframe pulsing 0.5s
+/// - Timer: 15pt mono, X=34pt from left
+/// - "< Slide to cancel": centered, 14pt, panelControlColor
+/// - Jiggle animation: 6pt, 1.0s easeInOut, infinite
+final class VoiceRecordingPanel: UIView {
+
+    weak var delegate: VoiceRecordingPanelDelegate?
+
+    // MARK: - Subviews
+
+    // Glass background
+    private let glassBackground = TelegramGlassUIView(frame: .zero)
+
+    // Red dot (10×10, #FF2D55)
+    private let redDot = UIView()
+
+    // Timer (15pt monospaced)
+    private let timerLabel = UILabel()
+
+    // Cancel indicator container (arrow + "Slide to cancel")
+    private let cancelContainer = UIView()
+    private let arrowIcon = UIImageView()
+    private let slideLabel = UILabel()
+
+    // Cancel button (shown in locked state, 17pt)
+    private let cancelButton = UIButton(type: .system)
+
+    // MARK: - State
+
+    private(set) var isDisplayingCancel = false
+
+    // MARK: - Telegram-exact layout constants
+
+    private let dotX: CGFloat = 16
+    private let timerX: CGFloat = 34
+    private let dotSize: CGFloat = 10
+    private let arrowLabelGap: CGFloat = 6
+
+    // MARK: - Init
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        clipsToBounds = true
+        layer.cornerRadius = 21
+        layer.cornerCurve = .continuous
+        setupSubviews()
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) { fatalError() }
+
+    // MARK: - Setup
+
+    private func setupSubviews() {
+        // Glass background (matches input container style)
+        glassBackground.fixedCornerRadius = 21
+        glassBackground.isUserInteractionEnabled = false
+        addSubview(glassBackground)
+
+        // Red dot: 10×10, Telegram #FF2D55
+        redDot.backgroundColor = UIColor(red: 1.0, green: 45/255.0, blue: 85/255.0, alpha: 1)
+        redDot.layer.cornerRadius = dotSize / 2
+        addSubview(redDot)
+
+        // Timer: 15pt monospaced
+        timerLabel.font = .monospacedDigitSystemFont(ofSize: 15, weight: .regular)
+        timerLabel.textColor = .white
+        timerLabel.text = "0:00"
+        addSubview(timerLabel)
+
+        // Arrow icon (template, white 30% alpha like panelControlColor on dark)
+        let arrowConfig = UIImage.SymbolConfiguration(pointSize: 11, weight: .semibold)
+        arrowIcon.image = UIImage(systemName: "chevron.left", withConfiguration: arrowConfig)
+        arrowIcon.tintColor = UIColor.white.withAlphaComponent(0.4)
+        cancelContainer.addSubview(arrowIcon)
+
+        // "Slide to cancel" label: 14pt regular
+        slideLabel.font = .systemFont(ofSize: 14, weight: .regular)
+        slideLabel.textColor = UIColor.white.withAlphaComponent(0.4)
+        slideLabel.text = "Slide to cancel"
+        cancelContainer.addSubview(slideLabel)
+        addSubview(cancelContainer)
+
+        // Cancel button (for locked state): 17pt
+        cancelButton.setTitle("Cancel", for: .normal)
+        cancelButton.setTitleColor(.white, for: .normal)
+        cancelButton.titleLabel?.font = .systemFont(ofSize: 17, weight: .regular)
+        cancelButton.addTarget(self, action: #selector(cancelTapped), for: .touchUpInside)
+        cancelButton.alpha = 0
+        addSubview(cancelButton)
+    }
+
+    // MARK: - Layout
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        let h = bounds.height
+        let w = bounds.width
+
+        // Glass background
+        glassBackground.frame = bounds
+        glassBackground.applyCornerRadius()
+
+        // Red dot: 10×10, centered vertically with timer
+        let timerSize = timerLabel.sizeThatFits(CGSize(width: 100, height: h))
+        let timerY = floor((h - timerSize.height) / 2) + 1 // +1pt baseline offset (Telegram)
+
+        redDot.frame = CGRect(
+            x: dotX,
+            y: timerY + floor((timerSize.height - dotSize) / 2),
+            width: dotSize,
+            height: dotSize
+        )
+
+        // Timer: at X=34
+        timerLabel.frame = CGRect(x: timerX, y: timerY, width: timerSize.width + 4, height: timerSize.height)
+
+        // Cancel indicator: centered in available width
+        let labelSize = slideLabel.sizeThatFits(CGSize(width: 200, height: h))
+        let arrowW: CGFloat = 12
+        let totalCancelW = arrowW + arrowLabelGap + labelSize.width
+        let cancelX = floor((w - totalCancelW) / 2)
+
+        cancelContainer.frame = CGRect(x: cancelX, y: 0, width: totalCancelW, height: h)
+        arrowIcon.frame = CGRect(x: 0, y: floor((h - 12) / 2), width: arrowW, height: 12)
+        slideLabel.frame = CGRect(
+            x: arrowW + arrowLabelGap,
+            y: 1 + floor((h - labelSize.height) / 2),
+            width: labelSize.width,
+            height: labelSize.height
+        )
+
+        // Cancel button: centered
+        cancelButton.sizeToFit()
+        cancelButton.center = CGPoint(x: w / 2, y: h / 2)
+    }
+
+    // MARK: - Public API
+
+    /// Updates timer text. Called from AudioRecorder.onLevelUpdate.
+    func updateDuration(_ duration: TimeInterval) {
+        let totalSeconds = Int(duration)
+        let minutes = totalSeconds / 60
+        let seconds = totalSeconds % 60
+        let centiseconds = Int(duration * 100) % 100
+        timerLabel.text = String(format: "%d:%02d,%02d", minutes, seconds, centiseconds)
+    }
+
+    /// Updates cancel indicator position based on horizontal drag.
+    /// translation is negative (finger sliding left).
+    func updateCancelTranslation(_ translation: CGFloat) {
+        guard !isDisplayingCancel else { return }
+
+        // Telegram: indicatorTranslation = max(0, cancelTranslation - 8)
+        let offset = max(0, abs(translation) - 8)
+        cancelContainer.transform = CGAffineTransform(translationX: -offset * 0.5, y: 0)
+
+        // Telegram: alpha = max(0, min(1, (frameMinX - 100) / 10))
+        let minX = cancelContainer.frame.minX - offset * 0.5
+        let alpha = max(0, min(1, (minX - 100) / 10))
+        cancelContainer.alpha = alpha
+    }
+
+    /// Animate panel in. Called when recording begins.
+    /// Telegram: spring 0.4–0.5s, dot/timer slide from left, cancel from right.
+    func animateIn(panelWidth: CGFloat) {
+        // Red dot: appear with scale 0.3→1.0, alpha 0→1, 0.15s (Telegram exact)
+        redDot.transform = CGAffineTransform(scaleX: 0.3, y: 0.3)
+        redDot.alpha = 0
+        UIView.animate(withDuration: 0.15) {
+            self.redDot.transform = .identity
+            self.redDot.alpha = 1
+        }
+
+        // Start pulsing after dot appears (Telegram: keyframe, 0.5s cycle)
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) { [weak self] in
+            self?.startDotPulsing()
+        }
+
+        // Timer: slide in from left, spring 0.5s
+        timerLabel.alpha = 0
+        let timerStartX = timerLabel.frame.origin.x - 30
+        timerLabel.transform = CGAffineTransform(translationX: -30, y: 0)
+        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.65, initialSpringVelocity: 0, options: []) {
+            self.timerLabel.alpha = 1
+            self.timerLabel.transform = .identity
+        }
+
+        // Cancel indicator: slide in from right, spring 0.4s (Telegram exact)
+        cancelContainer.alpha = 1
+        cancelContainer.transform = CGAffineTransform(translationX: panelWidth * 0.3, y: 0)
+        UIView.animate(withDuration: 0.4, delay: 0, usingSpringWithDamping: 0.65, initialSpringVelocity: 0, options: []) {
+            self.cancelContainer.transform = .identity
+        }
+
+        // Start jiggle after cancel slides in (Telegram: 6pt, 1.0s, easeInOut, infinite)
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
+            self?.startCancelJiggle()
+        }
+    }
+
+    /// Animate panel out. Called when recording ends.
+    func animateOut(completion: (() -> Void)? = nil) {
+        stopDotPulsing()
+        stopCancelJiggle()
+
+        // Telegram: 0.15s fade + scale for dot/timer
+        UIView.animate(withDuration: 0.15, animations: {
+            self.redDot.alpha = 0
+            self.timerLabel.alpha = 0
+            self.timerLabel.transform = CGAffineTransform(scaleX: 0.5, y: 0.5)
+            self.cancelContainer.alpha = 0
+            self.cancelButton.alpha = 0
+        }, completion: { _ in
+            self.removeFromSuperview()
+            completion?()
+        })
+    }
+
+    /// Transition cancel indicator to "Cancel" button (locked state).
+    /// Telegram: arrow+label shrink up (-22pt, scale 0.25), button grows down.
+    func showCancelButton() {
+        guard !isDisplayingCancel else { return }
+        isDisplayingCancel = true
+        stopCancelJiggle()
+
+        // Cancel button starts small and offset
+        cancelButton.transform = CGAffineTransform(translationX: 0, y: 22).scaledBy(x: 0.25, y: 0.25)
+
+        UIView.animate(withDuration: 0.25) {
+            // Arrow + label shrink up
+            self.cancelContainer.alpha = 0
+            self.cancelContainer.transform = CGAffineTransform(translationX: 0, y: -22).scaledBy(x: 0.25, y: 0.25)
+        }
+
+        UIView.animate(withDuration: 0.25) {
+            self.cancelButton.alpha = 1
+            self.cancelButton.transform = .identity
+        }
+    }
+
+    // MARK: - Red Dot Pulsing (Telegram exact: keyframe, 0.5s, [1,1,0], autoReverse)
+
+    private func startDotPulsing() {
+        let anim = CAKeyframeAnimation(keyPath: "opacity")
+        anim.values = [1.0, 1.0, 0.0]
+        anim.keyTimes = [0.0, 0.4546, 0.9091]
+        anim.duration = 0.5
+        anim.autoreverses = true
+        anim.repeatCount = .infinity
+        redDot.layer.add(anim, forKey: "pulse")
+    }
+
+    private func stopDotPulsing() {
+        redDot.layer.removeAnimation(forKey: "pulse")
+    }
+
+    // MARK: - Cancel Jiggle (Telegram exact: 6pt, 1.0s, easeInOut, autoReverse, infinite)
+
+    private func startCancelJiggle() {
+        guard bounds.width > 320 else { return } // Telegram: only on wider screens
+        let anim = CABasicAnimation(keyPath: "transform")
+        anim.toValue = CATransform3DMakeTranslation(6, 0, 0)
+        anim.duration = 1.0
+        anim.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
+        anim.autoreverses = true
+        anim.repeatCount = .infinity
+        cancelContainer.layer.add(anim, forKey: "jiggle")
+    }
+
+    private func stopCancelJiggle() {
+        cancelContainer.layer.removeAnimation(forKey: "jiggle")
+    }
+
+    // MARK: - Actions
+
+    @objc private func cancelTapped() {
+        delegate?.recordingPanelDidTapCancel(self)
+    }
+}

Rosetta/Features/Chats/ChatList/ChatListView.swift

@@ -35,16 +35,21 @@ struct ChatListView: View {
     @State private var showNewGroupSheet = false
     @State private var showJoinGroupSheet = false
     @State private var showNewChatActionSheet = false
+    @State private var searchBarExpansion: CGFloat = 1.0
     @FocusState private var isSearchFocused: Bool
 
     var body: some View {
         NavigationStack(path: $navigationState.path) {
             VStack(spacing: 0) {
-                // Custom search bar
+                // Custom search bar — collapses on scroll (Telegram: 54pt distance)
                 customSearchBar
                     .padding(.horizontal, 16)
-                    .padding(.top, 12)
+                    .padding(.top, isSearchActive ? 8 : 8 * searchBarExpansion)
-                    .padding(.bottom, 8)
+                    .padding(.bottom, isSearchActive ? 8 : 8 * searchBarExpansion)
+                    .frame(height: isSearchActive ? 60 : max(0, 60 * searchBarExpansion), alignment: .top)
+                    .clipped()
+                    .opacity(isSearchActive ? 1 : Double(searchBarExpansion))
+                    .allowsHitTesting(isSearchActive || searchBarExpansion > 0.5)
                     .background(
                         (hasPinnedChats && !isSearchActive
                             ? RosettaColors.Adaptive.pinnedSectionBackground
@@ -78,6 +83,9 @@ struct ChatListView: View {
             .toolbar(isSearchActive ? .hidden : .visible, for: .navigationBar)
             .toolbar { toolbarContent }
             .modifier(ChatListToolbarBackgroundModifier())
+            .onChange(of: isSearchActive) { _, _ in
+                searchBarExpansion = 1.0
+            }
             .onChange(of: searchText) { _, newValue in
                 viewModel.setSearchQuery(newValue)
             }
@@ -166,7 +174,9 @@ struct ChatListView: View {
     // MARK: - Cancel Search
 
     private func cancelSearch() {
-        isSearchActive = false
+        withAnimation(.easeInOut(duration: 0.3)) {
+            isSearchActive = false
+        }
         isSearchFocused = false
         searchText = ""
         viewModel.setSearchQuery("")
@@ -229,12 +239,12 @@ private extension ChatListView {
                     .padding(.horizontal, 12)
                 }
             }
-            .frame(height: 42)
+            .frame(height: 44)
             .frame(maxWidth: .infinity)
             .contentShape(Rectangle())
             .onTapGesture {
                 if !isSearchActive {
-                    withAnimation(.easeInOut(duration: 0.25)) {
+                    withAnimation(.easeInOut(duration: 0.14)) {
                         isSearchActive = true
                     }
                     DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
@@ -244,20 +254,20 @@ private extension ChatListView {
             }
             .background {
                 if isSearchActive {
-                    RoundedRectangle(cornerRadius: 24, style: .continuous)
+                    RoundedRectangle(cornerRadius: 22, style: .continuous)
                         .fill(RosettaColors.Adaptive.searchBarFill)
                         .overlay {
-                            RoundedRectangle(cornerRadius: 24, style: .continuous)
+                            RoundedRectangle(cornerRadius: 22, style: .continuous)
                                 .strokeBorder(RosettaColors.Adaptive.searchBarBorder, lineWidth: 0.5)
                         }
                 } else {
-                    RoundedRectangle(cornerRadius: 24, style: .continuous)
+                    RoundedRectangle(cornerRadius: 22, style: .continuous)
                         .fill(RosettaColors.Adaptive.searchBarFill)
                 }
             }
             .onChange(of: isSearchFocused) { _, focused in
                 if focused && !isSearchActive {
-                    withAnimation(.easeInOut(duration: 0.25)) {
+                    withAnimation(.easeInOut(duration: 0.14)) {
                         isSearchActive = true
                     }
                 }
@@ -310,6 +320,9 @@ private extension ChatListView {
                         hasPinnedChats = pinned
                     }
                 }
+            },
+            onScrollOffsetChange: { expansion in
+                searchBarExpansion = expansion
             }
         )
     }
@@ -593,6 +606,7 @@ private struct DeviceVerificationContentRouter: View {
     @ObservedObject var navigationState: ChatListNavigationState
     var onShowRequests: () -> Void = {}
     var onPinnedStateChange: (Bool) -> Void = { _ in }
+    var onScrollOffsetChange: (CGFloat) -> Void = { _ in }
 
     var body: some View {
         let proto = ProtocolManager.shared
@@ -611,7 +625,8 @@ private struct DeviceVerificationContentRouter: View {
                 viewModel: viewModel,
                 navigationState: navigationState,
                 onShowRequests: onShowRequests,
-                onPinnedStateChange: onPinnedStateChange
+                onPinnedStateChange: onPinnedStateChange,
+                onScrollOffsetChange: onScrollOffsetChange
             )
         }
     }
@@ -626,6 +641,7 @@ private struct ChatListDialogContent: View {
     @ObservedObject var navigationState: ChatListNavigationState
     var onShowRequests: () -> Void = {}
     var onPinnedStateChange: (Bool) -> Void = { _ in }
+    var onScrollOffsetChange: (CGFloat) -> Void = { _ in }
 
     /// Desktop parity: track typing dialogs from MessageRepository (@Published).
     @State private var typingDialogs: [String: Set<String>] = [:]
@@ -659,85 +675,53 @@ private struct ChatListDialogContent: View {
         }
     }
 
-    // MARK: - Dialog List
+    // MARK: - Dialog List (UIKit UICollectionView)
-
-    private static let topAnchorId = "chatlist_top"
 
     private func dialogList(pinned: [Dialog], unpinned: [Dialog], requestsCount: Int) -> some View {
-        ScrollViewReader { scrollProxy in
+        Group {
-        List {
             if viewModel.isLoading {
-                ForEach(0..<8, id: \.self) { _ in
+                // Shimmer skeleton during initial load (SwiftUI — simple, not perf-critical)
-                    ChatRowShimmerView()
+                List {
-                        .listRowInsets(EdgeInsets())
+                    ForEach(0..<8, id: \.self) { _ in
-                        .listRowBackground(Color.clear)
+                        ChatRowShimmerView()
-                        .listRowSeparator(.hidden)
+                            .listRowInsets(EdgeInsets())
-                }
+                            .listRowBackground(Color.clear)
-            } else {
+                            .listRowSeparator(.hidden)
-                // Telegram-style "Request Chats" row at top (like Archived Chats)
-                if requestsCount > 0 {
-                    RequestChatsRow(count: requestsCount, onTap: onShowRequests)
-                        .listRowInsets(EdgeInsets())
-                        .listRowBackground(Color.clear)
-                        .listRowSeparator(.visible, edges: .bottom)
-                        .listRowSeparatorTint(RosettaColors.Adaptive.divider)
-                        .alignmentGuide(.listRowSeparatorLeading) { _ in 82 }
-                }
-
-                if !pinned.isEmpty {
-                    ForEach(pinned, id: \.id) { dialog in
-                        chatRow(dialog, isFirst: dialog.id == pinned.first?.id && requestsCount == 0)
-                            .environment(\.rowBackgroundColor, RosettaColors.Adaptive.pinnedSectionBackground)
-                            .listRowBackground(RosettaColors.Adaptive.pinnedSectionBackground)
                     }
                 }
-                ForEach(unpinned, id: \.id) { dialog in
+                .listStyle(.plain)
-                    chatRow(dialog, isFirst: dialog.id == unpinned.first?.id && pinned.isEmpty && requestsCount == 0)
+                .scrollContentBackground(.hidden)
-                }
+            } else {
-            }
+                // UIKit UICollectionView — Telegram-level scroll performance
-
+                let isSyncing = SessionManager.shared.syncBatchInProgress
-            Color.clear.frame(height: 80)
+                ChatListCollectionView(
-                .listRowInsets(EdgeInsets())
+                    pinnedDialogs: pinned,
-                .listRowBackground(Color.clear)
+                    unpinnedDialogs: unpinned,
-                .listRowSeparator(.hidden)
+                    requestsCount: requestsCount,
-        }
+                    typingDialogs: typingDialogs,
-        .listStyle(.plain)
+                    isSyncing: isSyncing,
-        .scrollContentBackground(.hidden)
+                    isLoading: viewModel.isLoading,
-        .scrollDismissesKeyboard(.immediately)
+                    onSelectDialog: { dialog in
-        .scrollIndicators(.hidden)
+                        navigationState.path.append(ChatRoute(dialog: dialog))
-        .modifier(ClassicSwipeActionsModifier())
+                    },
-        // Scroll-to-top: tap "Chats" in toolbar
+                    onDeleteDialog: { dialog in
-        .onReceive(NotificationCenter.default.publisher(for: .chatListScrollToTop)) { _ in
+                        viewModel.deleteDialog(dialog)
-            // Scroll to first dialog ID (pinned or unpinned)
+                    },
-            let firstId = pinned.first?.id ?? unpinned.first?.id
+                    onTogglePin: { dialog in
-            if let firstId {
+                        viewModel.togglePin(dialog)
-                withAnimation(.easeOut(duration: 0.3)) {
+                    },
-                    scrollProxy.scrollTo(firstId, anchor: .top)
+                    onToggleMute: { dialog in
-                }
+                        viewModel.toggleMute(dialog)
+                    },
+                    onPinnedStateChange: onPinnedStateChange,
+                    onShowRequests: onShowRequests,
+                    onScrollOffsetChange: onScrollOffsetChange,
+                    onMarkAsRead: { dialog in
+                        viewModel.markAsRead(dialog)
+                    }
+                )
             }
         }
-        } // ScrollViewReader
-    }
-
-    private func chatRow(_ dialog: Dialog, isFirst: Bool = false) -> some View {
-        /// Desktop parity: wrap in SyncAwareChatRow to isolate @Observable read
-        /// of SessionManager.syncBatchInProgress from this view's observation scope.
-        /// viewModel + navigationState passed as plain `let` (not @ObservedObject) —
-        /// stable class references don't trigger row re-evaluation on parent re-render.
-        SyncAwareChatRow(
-            dialog: dialog,
-            isTyping: !(typingDialogs[dialog.opponentKey]?.isEmpty ?? true),
-            typingSenderNames: {
-                guard let senderKeys = typingDialogs[dialog.opponentKey] else { return [] }
-                return senderKeys.map { sk in
-                    DialogRepository.shared.dialogs[sk]?.opponentTitle
-                        ?? String(sk.prefix(8))
-                }
-            }(),
-            isFirst: isFirst,
-            viewModel: viewModel,
-            navigationState: navigationState
-        )
     }
 }
 

Rosetta/Features/Chats/ChatList/UIKit/ChatListCell.swift

@@ -0,0 +1,886 @@
+import UIKit
+import SwiftUI
+
+// MARK: - ChatListCell
+
+/// UICollectionViewCell with manual frame layout matching Telegram iOS ChatListItemNode.
+/// All measurements taken from Telegram source: `ChatListItem.swift` asyncLayout().
+///
+/// No Auto Layout — all frames computed in `layoutSubviews()` for maximum scroll performance.
+final class ChatListCell: UICollectionViewCell {
+
+    // MARK: - Layout Constants (Telegram-exact)
+
+    enum CellLayout {
+        static let avatarDiameter: CGFloat = 60
+        static let avatarLeftPadding: CGFloat = 10
+        static let avatarToTextGap: CGFloat = 8  // visual gap after avatar
+        static let contentLeftInset: CGFloat = 80 // avatarLeft(10) + avatar(60) + gap(10)
+        static let contentRightInset: CGFloat = 10
+        static let contentTopOffset: CGFloat = 8
+        static let titleSpacing: CGFloat = -1  // negative, Telegram's titleSpacing
+        static let dateYOffset: CGFloat = 2  // relative to contentTop
+        static let badgeDiameter: CGFloat = 20
+        static let badgeSpacing: CGFloat = 6
+        static let badgeBottomInset: CGFloat = 2 // from content bottom
+        static let separatorInset: CGFloat = 80
+        static let onlineDotSize: CGFloat = 14  // 24% of 60
+        static let onlineBorderWidth: CGFloat = 2.5
+        static let statusIconSize: CGFloat = 16
+        static let itemHeight: CGFloat = 76
+    }
+
+    // MARK: - Subviews
+
+    // Avatar
+    let avatarBackgroundView = UIView()
+    let avatarInitialsLabel = UILabel()
+    let avatarImageView = UIImageView()
+    let onlineIndicator = UIView()
+    private let onlineDotInner = UIView()
+
+    // Group avatar fallback
+    let groupIconView = UIImageView()
+
+    // Title row
+    let titleLabel = UILabel()
+    let verifiedBadge = UIImageView()
+    let mutedIconView = UIImageView()
+
+    // Author (group sender name — separate line between title and message)
+    let authorLabel = UILabel()
+
+    // Message row
+    let messageLabel = UILabel()
+
+    // Trailing column
+    let dateLabel = UILabel()
+    let statusImageView = UIImageView()
+    let badgeContainer = UIView()
+    let badgeLabel = UILabel()
+    let mentionBadgeContainer = UIView()
+    let mentionLabel = UILabel()
+    let pinnedIconView = UIImageView()
+
+    // Separator
+    let separatorView = UIView()
+
+    // MARK: - State
+
+    private var isPinned = false
+    private var wasBadgeVisible = false
+    private var wasMentionBadgeVisible = false
+
+    // MARK: - Init
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        setupSubviews()
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    // MARK: - Setup
+
+    private func setupSubviews() {
+        backgroundColor = .clear
+        contentView.backgroundColor = .clear
+
+        // Avatar background (colored circle for initials)
+        avatarBackgroundView.clipsToBounds = true
+        avatarBackgroundView.layer.cornerRadius = CellLayout.avatarDiameter / 2
+        contentView.addSubview(avatarBackgroundView)
+
+        // Initials label
+        avatarInitialsLabel.textAlignment = .center
+        avatarInitialsLabel.font = .systemFont(ofSize: CellLayout.avatarDiameter * 0.38, weight: .bold)
+        contentView.addSubview(avatarInitialsLabel)
+
+        // Group icon
+        groupIconView.contentMode = .center
+        groupIconView.tintColor = .white.withAlphaComponent(0.9)
+        groupIconView.image = UIImage(systemName: "person.2.fill")?.withConfiguration(
+            UIImage.SymbolConfiguration(pointSize: 24, weight: .medium)
+        )
+        groupIconView.isHidden = true
+        contentView.addSubview(groupIconView)
+
+        // Avatar image (photo, on top of background)
+        avatarImageView.contentMode = .scaleAspectFill
+        avatarImageView.clipsToBounds = true
+        avatarImageView.layer.cornerRadius = CellLayout.avatarDiameter / 2
+        contentView.addSubview(avatarImageView)
+
+        // Online indicator
+        onlineIndicator.isHidden = true
+        onlineIndicator.layer.cornerRadius = CellLayout.onlineDotSize / 2
+        contentView.addSubview(onlineIndicator)
+
+        onlineDotInner.layer.cornerRadius = (CellLayout.onlineDotSize - CellLayout.onlineBorderWidth * 2) / 2
+        onlineDotInner.backgroundColor = UIColor(RosettaColors.primaryBlue)
+        onlineIndicator.addSubview(onlineDotInner)
+
+        // Title
+        titleLabel.font = .systemFont(ofSize: 16, weight: .medium)
+        titleLabel.lineBreakMode = .byTruncatingTail
+        contentView.addSubview(titleLabel)
+
+        // Verified badge
+        verifiedBadge.contentMode = .scaleAspectFit
+        verifiedBadge.isHidden = true
+        contentView.addSubview(verifiedBadge)
+
+        // Muted icon
+        mutedIconView.contentMode = .scaleAspectFit
+        mutedIconView.image = UIImage(systemName: "speaker.slash.fill")?.withConfiguration(
+            UIImage.SymbolConfiguration(pointSize: 12, weight: .regular)
+        )
+        mutedIconView.isHidden = true
+        contentView.addSubview(mutedIconView)
+
+        // Author (group sender name on own line)
+        authorLabel.font = .systemFont(ofSize: 15, weight: .regular)
+        authorLabel.lineBreakMode = .byTruncatingTail
+        authorLabel.isHidden = true
+        contentView.addSubview(authorLabel)
+
+        // Message
+        messageLabel.font = .systemFont(ofSize: 15, weight: .regular)
+        messageLabel.numberOfLines = 2
+        messageLabel.lineBreakMode = .byTruncatingTail
+        contentView.addSubview(messageLabel)
+
+        // Date
+        dateLabel.font = .systemFont(ofSize: 14, weight: .regular)
+        dateLabel.textAlignment = .right
+        contentView.addSubview(dateLabel)
+
+        // Status icon (checkmarks)
+        statusImageView.contentMode = .scaleAspectFit
+        statusImageView.isHidden = true
+        contentView.addSubview(statusImageView)
+
+        // Badge container (capsule)
+        badgeContainer.isHidden = true
+        badgeContainer.layer.cornerRadius = CellLayout.badgeDiameter / 2
+        contentView.addSubview(badgeContainer)
+
+        // Badge label
+        badgeLabel.font = .monospacedDigitSystemFont(ofSize: 12, weight: .semibold)
+        badgeLabel.textColor = .white
+        badgeLabel.textAlignment = .center
+        badgeContainer.addSubview(badgeLabel)
+
+        // Mention badge
+        mentionBadgeContainer.isHidden = true
+        mentionBadgeContainer.layer.cornerRadius = CellLayout.badgeDiameter / 2
+        contentView.addSubview(mentionBadgeContainer)
+
+        mentionLabel.font = .systemFont(ofSize: 14, weight: .medium)
+        mentionLabel.textColor = .white
+        mentionLabel.text = "@"
+        mentionLabel.textAlignment = .center
+        mentionBadgeContainer.addSubview(mentionLabel)
+
+        // Pin icon
+        pinnedIconView.contentMode = .scaleAspectFit
+        pinnedIconView.image = UIImage(systemName: "pin.fill")?.withConfiguration(
+            UIImage.SymbolConfiguration(pointSize: 13, weight: .regular)
+        )
+        pinnedIconView.isHidden = true
+        pinnedIconView.transform = CGAffineTransform(rotationAngle: .pi / 4)
+        contentView.addSubview(pinnedIconView)
+
+        // Separator
+        separatorView.isUserInteractionEnabled = false
+        contentView.addSubview(separatorView)
+    }
+
+    // MARK: - Layout (manual frame calculation)
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        let w = contentView.bounds.width
+        let h = contentView.bounds.height
+        let scale = UIScreen.main.scale
+
+        // ── Avatar ──
+        let avatarY = floor((h - CellLayout.avatarDiameter) / 2)
+        let avatarFrame = CGRect(
+            x: CellLayout.avatarLeftPadding,
+            y: avatarY,
+            width: CellLayout.avatarDiameter,
+            height: CellLayout.avatarDiameter
+        )
+        avatarBackgroundView.frame = avatarFrame
+        avatarInitialsLabel.frame = avatarFrame
+        avatarImageView.frame = avatarFrame
+        groupIconView.frame = avatarFrame
+
+        // Online indicator (bottom-right of avatar)
+        let onlineX = avatarFrame.maxX - CellLayout.onlineDotSize + 1
+        let onlineY = avatarFrame.maxY - CellLayout.onlineDotSize + 1
+        onlineIndicator.frame = CGRect(
+            x: onlineX, y: onlineY,
+            width: CellLayout.onlineDotSize, height: CellLayout.onlineDotSize
+        )
+        onlineDotInner.frame = onlineIndicator.bounds.insetBy(
+            dx: CellLayout.onlineBorderWidth, dy: CellLayout.onlineBorderWidth
+        )
+
+        // ── Content area ──
+        let contentLeft = CellLayout.contentLeftInset
+        let contentRight = w - CellLayout.contentRightInset
+        let contentTop = CellLayout.contentTopOffset
+
+        // ── Top row: [title + icons ...] [status] [date] ──
+
+        // Date — measure first (determines title max width)
+        let dateSize = dateLabel.sizeThatFits(CGSize(width: 120, height: 20))
+        let dateX = contentRight - dateSize.width
+        let dateY = contentTop + CellLayout.dateYOffset
+        dateLabel.frame = CGRect(x: dateX, y: dateY, width: ceil(dateSize.width), height: ceil(dateSize.height))
+
+        // Status icon — left of date
+        var titleRightBound = dateX - 6 // gap between title area and date
+        if !statusImageView.isHidden {
+            let statusW: CGFloat = CellLayout.statusIconSize
+            let statusH: CGFloat = CellLayout.statusIconSize
+            let statusX = dateX - statusW - 2
+            let statusY = dateY + floor((dateSize.height - statusH) / 2)
+            statusImageView.frame = CGRect(x: statusX, y: statusY, width: statusW, height: statusH)
+            titleRightBound = statusX - 4
+        }
+
+        // Title — measure within available width
+        let titleAvailableWidth = titleRightBound - contentLeft
+        // Account for verified (16+3) and muted (14+3) if visible
+        var titleIconsWidth: CGFloat = 0
+        if !verifiedBadge.isHidden { titleIconsWidth += 16 + 3 }
+        if !mutedIconView.isHidden { titleIconsWidth += 14 + 3 }
+        let titleMaxWidth = max(0, titleAvailableWidth - titleIconsWidth)
+
+        let titleSize = titleLabel.sizeThatFits(CGSize(width: titleMaxWidth, height: 22))
+        let screenPixelTitle = 1.0 / scale
+        titleLabel.frame = CGRect(
+            x: contentLeft, y: contentTop + screenPixelTitle,
+            width: min(ceil(titleSize.width), titleMaxWidth), height: ceil(titleSize.height)
+        )
+
+        // Verified badge — right of title text
+        var iconX = titleLabel.frame.maxX + 3
+        if !verifiedBadge.isHidden {
+            let s: CGFloat = 16
+            verifiedBadge.frame = CGRect(
+                x: iconX,
+                y: contentTop + floor((titleSize.height - s) / 2),
+                width: s, height: s
+            )
+            iconX = verifiedBadge.frame.maxX + 3
+        }
+
+        // Muted icon
+        if !mutedIconView.isHidden {
+            let s: CGFloat = 14
+            mutedIconView.frame = CGRect(
+                x: iconX,
+                y: contentTop + floor((titleSize.height - s) / 2),
+                width: s, height: s
+            )
+        }
+
+        // ── Bottom row: [message ...] [badge/pin] ──
+
+        // Badges — positioned at bottom of content area
+        var badgeRightEdge = contentRight
+        // Telegram: badges aligned with content bottom - 2pt inset
+        let badgeY = h - CellLayout.badgeDiameter - 10
+
+        if !badgeContainer.isHidden {
+            let textSize = badgeLabel.sizeThatFits(CGSize(width: 100, height: CellLayout.badgeDiameter))
+            let badgeW = max(CellLayout.badgeDiameter, ceil(textSize.width) + 10)
+            badgeContainer.frame = CGRect(
+                x: badgeRightEdge - badgeW, y: badgeY,
+                width: badgeW, height: CellLayout.badgeDiameter
+            )
+            badgeContainer.layer.cornerRadius = CellLayout.badgeDiameter / 2
+            badgeLabel.frame = badgeContainer.bounds
+            badgeRightEdge = badgeContainer.frame.minX - CellLayout.badgeSpacing
+        }
+
+        if !mentionBadgeContainer.isHidden {
+            mentionBadgeContainer.frame = CGRect(
+                x: badgeRightEdge - CellLayout.badgeDiameter, y: badgeY,
+                width: CellLayout.badgeDiameter, height: CellLayout.badgeDiameter
+            )
+            mentionLabel.frame = mentionBadgeContainer.bounds
+            badgeRightEdge = mentionBadgeContainer.frame.minX - CellLayout.badgeSpacing
+        }
+
+        if !pinnedIconView.isHidden {
+            let pinS: CGFloat = 16
+            pinnedIconView.frame = CGRect(
+                x: badgeRightEdge - pinS,
+                y: badgeY + floor((CellLayout.badgeDiameter - pinS) / 2),
+                width: pinS, height: pinS
+            )
+            badgeRightEdge = pinnedIconView.frame.minX - CellLayout.badgeSpacing
+        }
+
+        // ── Author + Message — fixed Y positions from Telegram screenshot ──
+        // Measured from Telegram iOS at 76pt cell height, 16pt title, 15pt text:
+        //   1:1:   title ~8pt, message ~27pt
+        //   Group: title ~8pt, author ~27pt, message ~45pt
+        let textLeft = contentLeft - 1
+        let messageMaxW = badgeRightEdge - contentLeft
+
+        if !authorLabel.isHidden {
+            let authorSize = authorLabel.sizeThatFits(CGSize(width: messageMaxW, height: 22))
+            authorLabel.frame = CGRect(
+                x: textLeft, y: 30,
+                width: min(ceil(authorSize.width), messageMaxW),
+                height: 20
+            )
+            messageLabel.frame = CGRect(
+                x: textLeft, y: 50,
+                width: max(0, messageMaxW), height: 20
+            )
+        } else {
+            authorLabel.frame = .zero
+            messageLabel.frame = CGRect(
+                x: textLeft, y: 21,
+                width: max(0, messageMaxW), height: 38
+            )
+        }
+
+        // ── Separator ──
+        let separatorHeight = 1.0 / scale
+        separatorView.frame = CGRect(
+            x: CellLayout.separatorInset,
+            y: h - separatorHeight,
+            width: w - CellLayout.separatorInset,
+            height: separatorHeight
+        )
+    }
+
+    // MARK: - Configuration
+
+    /// Message text cache (shared across cells, avoids regex per configure).
+    private static var messageTextCache: [String: String] = [:]
+
+    func configure(with dialog: Dialog, isSyncing: Bool) {
+        let isDark = traitCollection.userInterfaceStyle == .dark
+        isPinned = dialog.isPinned
+
+        // Colors
+        let titleColor = isDark ? UIColor.white : UIColor.black
+        let secondaryColor = UIColor(red: 0x8E/255, green: 0x8E/255, blue: 0x93/255, alpha: 1)
+        let accentBlue = UIColor(RosettaColors.figmaBlue)
+        let mutedBadgeBg = isDark
+            ? UIColor(red: 0x66/255, green: 0x66/255, blue: 0x66/255, alpha: 1)
+            : UIColor(red: 0xB6/255, green: 0xB6/255, blue: 0xBB/255, alpha: 1)
+        let separatorColor = isDark
+            ? UIColor(red: 0x54/255, green: 0x54/255, blue: 0x58/255, alpha: 0.55)
+            : UIColor(red: 0xC8/255, green: 0xC7/255, blue: 0xCC/255, alpha: 1)
+        let pinnedBg = isDark
+            ? UIColor(red: 0x1C/255, green: 0x1C/255, blue: 0x1D/255, alpha: 1)
+            : UIColor(red: 0xF7/255, green: 0xF7/255, blue: 0xF7/255, alpha: 1)
+
+        // Background — pinned section uses decoration view, cells always clear
+        contentView.backgroundColor = .clear
+
+        // Online indicator background matches section bg
+        let cellBg = dialog.isPinned ? pinnedBg : (isDark ? UIColor.black : UIColor.white)
+        onlineIndicator.backgroundColor = cellBg
+
+        // Separator
+        separatorView.backgroundColor = separatorColor
+
+        // Avatar
+        configureAvatar(dialog: dialog, isDark: isDark)
+
+        // Online
+        onlineIndicator.isHidden = !dialog.isOnline || dialog.isSavedMessages
+
+        // Title
+        titleLabel.text = displayTitle(for: dialog)
+        titleLabel.textColor = titleColor
+
+        // Verified
+        configureVerified(dialog: dialog)
+
+        // Muted
+        mutedIconView.isHidden = !dialog.isMuted
+        mutedIconView.tintColor = secondaryColor
+
+        // Message text (typing is NOT shown in chat list — only inside chat detail)
+        configureMessageText(dialog: dialog, secondaryColor: secondaryColor, titleColor: titleColor)
+
+        // Date
+        dateLabel.text = formatTime(dialog.lastMessageTimestamp)
+        dateLabel.textColor = (dialog.unreadCount > 0 && !dialog.isMuted) ? accentBlue : secondaryColor
+
+        // Delivery status
+        configureDeliveryStatus(dialog: dialog, secondaryColor: secondaryColor, accentBlue: accentBlue)
+
+        // Badge
+        configureBadge(dialog: dialog, isSyncing: isSyncing, accentBlue: accentBlue, mutedBadgeBg: mutedBadgeBg)
+
+        // Pin
+        pinnedIconView.isHidden = !(dialog.isPinned && dialog.unreadCount == 0)
+        pinnedIconView.tintColor = secondaryColor
+
+        setNeedsLayout()
+    }
+
+    // MARK: - Avatar Configuration
+
+    private func configureAvatar(dialog: Dialog, isDark: Bool) {
+        let colorPair = RosettaColors.avatarColors[dialog.avatarColorIndex % RosettaColors.avatarColors.count]
+        let image = dialog.isSavedMessages ? nil : AvatarRepository.shared.loadAvatar(publicKey: dialog.opponentKey)
+
+        // Reset visibility
+        avatarBackgroundView.isHidden = false
+        avatarImageView.isHidden = true
+        avatarInitialsLabel.isHidden = true
+        groupIconView.isHidden = true
+
+        if dialog.isSavedMessages {
+            avatarBackgroundView.backgroundColor = UIColor(RosettaColors.primaryBlue)
+            groupIconView.isHidden = false
+            groupIconView.image = UIImage(systemName: "bookmark.fill")?.withConfiguration(
+                UIImage.SymbolConfiguration(pointSize: CellLayout.avatarDiameter * 0.38, weight: .semibold)
+            )
+            groupIconView.tintColor = .white
+        } else if let image {
+            avatarImageView.image = image
+            avatarImageView.isHidden = false
+            avatarBackgroundView.isHidden = true
+        } else if dialog.isGroup {
+            avatarBackgroundView.backgroundColor = UIColor(colorPair.tint)
+            groupIconView.isHidden = false
+            groupIconView.image = UIImage(systemName: "person.2.fill")?.withConfiguration(
+                UIImage.SymbolConfiguration(pointSize: 24, weight: .medium)
+            )
+            groupIconView.tintColor = .white.withAlphaComponent(0.9)
+        } else {
+            // Initials — Mantine "light" variant (matches AvatarView.swift)
+            let mantineDarkBody = UIColor(red: 0x1A/255, green: 0x1B/255, blue: 0x1E/255, alpha: 1)
+            let baseColor = isDark ? mantineDarkBody : .white
+            let tintUIColor = UIColor(colorPair.tint)
+            let tintAlpha: CGFloat = isDark ? 0.15 : 0.10
+            avatarBackgroundView.backgroundColor = baseColor.blended(with: tintUIColor, alpha: tintAlpha)
+            avatarInitialsLabel.isHidden = false
+            avatarInitialsLabel.text = dialog.initials
+            avatarInitialsLabel.font = .systemFont(
+                ofSize: CellLayout.avatarDiameter * 0.38, weight: .bold
+            ).rounded()
+            avatarInitialsLabel.textColor = isDark
+                ? UIColor(colorPair.text)
+                : tintUIColor
+        }
+    }
+
+    // MARK: - Verified Badge
+
+    /// Cached verified badge images (rendered once from SVG paths).
+    private static var verifiedImageCache: [Int: UIImage] = [:]
+
+    private static func verifiedImage(level: Int, size: CGFloat) -> UIImage {
+        if let cached = verifiedImageCache[level] { return cached }
+        let pathData: String
+        switch level {
+        case 2: pathData = TablerIconPath.shieldCheckFilled
+        case 3...: pathData = TablerIconPath.arrowBadgeDownFilled
+        default: pathData = TablerIconPath.rosetteDiscountCheckFilled
+        }
+        let image = renderSVGPath(pathData, viewBox: CGSize(width: 24, height: 24), size: CGSize(width: size, height: size))
+        verifiedImageCache[level] = image
+        return image
+    }
+
+    private func configureVerified(dialog: Dialog) {
+        let level = dialog.effectiveVerified
+        guard level > 0 && !dialog.isSavedMessages else {
+            verifiedBadge.isHidden = true
+            return
+        }
+        verifiedBadge.isHidden = false
+        verifiedBadge.image = Self.verifiedImage(level: level, size: 16)
+            .withRenderingMode(.alwaysTemplate)
+        switch level {
+        case 1:
+            verifiedBadge.tintColor = UIColor(RosettaColors.primaryBlue)
+        case 2:
+            verifiedBadge.tintColor = UIColor(RosettaColors.success)
+        default:
+            verifiedBadge.tintColor = UIColor(red: 1, green: 215/255, blue: 0, alpha: 1)
+        }
+    }
+
+    // MARK: - Delivery Status
+
+    /// Cached checkmark images (rendered once from SwiftUI Shapes).
+    private static let singleCheckImage: UIImage = renderShape(SingleCheckmarkShape(), size: CGSize(width: 14, height: 10.3))
+    private static let doubleCheckImage: UIImage = renderShape(DoubleCheckmarkShape(), size: CGSize(width: 17, height: 9.3))
+
+    /// Cached error indicator (Telegram: red circle with white exclamation).
+    private static let errorImage: UIImage = {
+        let size = CGSize(width: 16, height: 16)
+        let renderer = UIGraphicsImageRenderer(size: size)
+        return renderer.image { ctx in
+            // Red circle
+            let circlePath = UIBezierPath(ovalIn: CGRect(origin: .zero, size: size))
+            UIColor(red: 0xFF/255, green: 0x3B/255, blue: 0x30/255, alpha: 1).setFill()
+            circlePath.fill()
+            // White exclamation mark
+            let lineWidth: CGFloat = 1.8
+            let topY: CGFloat = 3.5
+            let bottomY: CGFloat = 10
+            let dotY: CGFloat = 12.5
+            let centerX = size.width / 2
+            // Stem
+            let stem = UIBezierPath()
+            stem.move(to: CGPoint(x: centerX, y: topY))
+            stem.addLine(to: CGPoint(x: centerX, y: bottomY))
+            stem.lineWidth = lineWidth
+            stem.lineCapStyle = .round
+            UIColor.white.setStroke()
+            stem.stroke()
+            // Dot
+            let dotSize: CGFloat = 2.0
+            let dotRect = CGRect(x: centerX - dotSize/2, y: dotY, width: dotSize, height: dotSize)
+            let dot = UIBezierPath(ovalIn: dotRect)
+            UIColor.white.setFill()
+            dot.fill()
+        }
+    }()
+
+    private func configureDeliveryStatus(dialog: Dialog, secondaryColor: UIColor, accentBlue: UIColor) {
+        guard dialog.lastMessageFromMe && !dialog.isSavedMessages else {
+            statusImageView.isHidden = true
+            return
+        }
+
+        if dialog.lastMessageDelivered == .delivered && dialog.lastMessageRead {
+            // Read — blue double checkmarks
+            statusImageView.isHidden = false
+            statusImageView.image = Self.doubleCheckImage.withRenderingMode(.alwaysTemplate)
+            statusImageView.tintColor = accentBlue
+        } else if dialog.lastMessageDelivered == .error {
+            // Error — red indicator
+            statusImageView.isHidden = false
+            statusImageView.image = Self.errorImage
+            statusImageView.tintColor = nil
+        } else {
+            // Waiting / delivered but not read — hide (Telegram doesn't show in chat list)
+            statusImageView.isHidden = true
+        }
+    }
+
+    // MARK: - Badge
+
+    private func configureBadge(dialog: Dialog, isSyncing: Bool, accentBlue: UIColor, mutedBadgeBg: UIColor) {
+        let count = dialog.unreadCount
+        let showBadge = count > 0 && !isSyncing
+
+        if showBadge {
+            let text: String
+            if count > 999 { text = "\(count / 1000)K" }
+            else if count > 99 { text = "99+" }
+            else { text = "\(count)" }
+            badgeLabel.text = text
+            badgeContainer.backgroundColor = dialog.isMuted ? mutedBadgeBg : accentBlue
+        }
+
+        // Animate badge appear/disappear (Telegram: scale spring)
+        animateBadgeTransition(view: badgeContainer, shouldShow: showBadge, wasVisible: &wasBadgeVisible)
+
+        // Mention badge
+        let showMention = dialog.hasMention && count > 0 && !isSyncing
+        if showMention {
+            mentionBadgeContainer.backgroundColor = dialog.isMuted ? mutedBadgeBg : accentBlue
+        }
+        animateBadgeTransition(view: mentionBadgeContainer, shouldShow: showMention, wasVisible: &wasMentionBadgeVisible)
+    }
+
+    /// Telegram badge animation: appear = scale 0.0001→1.2 (0.2s) → 1.0 (0.12s settle);
+    /// disappear = scale 1.0→0.0001 (0.12s). Uses transform (not frame) + .allowUserInteraction.
+    private func animateBadgeTransition(view: UIView, shouldShow: Bool, wasVisible: inout Bool) {
+        let wasShowing = wasVisible
+        wasVisible = shouldShow
+
+        if shouldShow && !wasShowing {
+            // Appear: pop in with bounce
+            view.isHidden = false
+            view.transform = CGAffineTransform(scaleX: 0.0001, y: 0.0001)
+            UIView.animate(withDuration: 0.2, delay: 0, options: [.curveEaseOut, .allowUserInteraction]) {
+                view.transform = CGAffineTransform(scaleX: 1.15, y: 1.15)
+            } completion: { _ in
+                UIView.animate(withDuration: 0.12, delay: 0, options: [.curveEaseInOut, .allowUserInteraction]) {
+                    view.transform = .identity
+                }
+            }
+        } else if !shouldShow && wasShowing {
+            // Disappear: scale down
+            UIView.animate(withDuration: 0.12, delay: 0, options: [.curveEaseIn, .allowUserInteraction]) {
+                view.transform = CGAffineTransform(scaleX: 0.0001, y: 0.0001)
+            } completion: { finished in
+                if finished {
+                    view.isHidden = true
+                    view.transform = .identity
+                }
+            }
+        } else {
+            // No transition — just set visibility
+            view.isHidden = !shouldShow
+            view.transform = .identity
+        }
+    }
+
+    // MARK: - Message Text
+
+    private func configureMessageText(dialog: Dialog, secondaryColor: UIColor, titleColor: UIColor) {
+        let text = resolveMessageText(dialog: dialog)
+
+        // Group chats: sender name on SEPARATE LINE (Telegram layout)
+        // authorNameColor = white (dark) / black (light)
+        let showAuthor = dialog.isGroup && !dialog.isSavedMessages
+            && !dialog.lastMessageSenderKey.isEmpty && !text.isEmpty
+        if showAuthor {
+            let senderName: String
+            if dialog.lastMessageFromMe {
+                senderName = "You"
+            } else {
+                let lookup = DialogRepository.shared.dialogs[dialog.lastMessageSenderKey]
+                senderName = lookup?.opponentTitle.isEmpty == false
+                    ? lookup!.opponentTitle
+                    : String(dialog.lastMessageSenderKey.prefix(8))
+            }
+            authorLabel.isHidden = false
+            authorLabel.text = senderName
+            authorLabel.textColor = titleColor
+            messageLabel.numberOfLines = 1 // 1 line when author shown
+        } else {
+            authorLabel.isHidden = true
+            messageLabel.numberOfLines = 2
+        }
+
+        messageLabel.attributedText = nil
+        messageLabel.text = text
+        messageLabel.textColor = secondaryColor
+    }
+
+    private func resolveMessageText(dialog: Dialog) -> String {
+        let raw = dialog.lastMessage.trimmingCharacters(in: .whitespacesAndNewlines)
+        if raw.isEmpty { return "No messages yet" }
+        if raw.hasPrefix("#group:") { return "Group invite" }
+        if Self.looksLikeCiphertext(raw) { return "No messages yet" }
+
+        if let cached = Self.messageTextCache[dialog.lastMessage] { return cached }
+
+        let cleaned = dialog.lastMessage.replacingOccurrences(of: "**", with: "")
+        let result = EmojiParser.replaceShortcodes(in: cleaned)
+        if Self.messageTextCache.count > 500 {
+            let keys = Array(Self.messageTextCache.keys.prefix(250))
+            for key in keys { Self.messageTextCache.removeValue(forKey: key) }
+        }
+        Self.messageTextCache[dialog.lastMessage] = result
+        return result
+    }
+
+    private static func looksLikeCiphertext(_ text: String) -> Bool {
+        if text.hasPrefix("CHNK:") { return true }
+        let parts = text.components(separatedBy: ":")
+        if parts.count == 2 {
+            let base64Chars = CharacterSet.alphanumerics.union(CharacterSet(charactersIn: "+/="))
+            let bothBase64 = parts.allSatisfy { part in
+                part.count >= 16 && part.unicodeScalars.allSatisfy { base64Chars.contains($0) }
+            }
+            if bothBase64 { return true }
+        }
+        if text.count >= 40 {
+            let hex = CharacterSet(charactersIn: "0123456789abcdefABCDEF")
+            if text.unicodeScalars.allSatisfy({ hex.contains($0) }) { return true }
+        }
+        return false
+    }
+
+    // MARK: - Display Title
+
+    private func displayTitle(for dialog: Dialog) -> String {
+        if dialog.isSavedMessages { return "Saved Messages" }
+        if dialog.isGroup {
+            let meta = GroupRepository.shared.groupMetadata(
+                account: dialog.account,
+                groupDialogKey: dialog.opponentKey
+            )
+            if let title = meta?.title, !title.isEmpty { return title }
+        }
+        if !dialog.opponentTitle.isEmpty { return dialog.opponentTitle }
+        if !dialog.opponentUsername.isEmpty { return "@\(dialog.opponentUsername)" }
+        return String(dialog.opponentKey.prefix(12))
+    }
+
+    // MARK: - Time Formatting
+
+    private static let timeFormatter: DateFormatter = {
+        let f = DateFormatter(); f.dateFormat = "h:mm a"; return f
+    }()
+    private static let dayFormatter: DateFormatter = {
+        let f = DateFormatter(); f.dateFormat = "EEE"; return f
+    }()
+    private static let dateFormatter: DateFormatter = {
+        let f = DateFormatter(); f.dateFormat = "dd.MM.yy"; return f
+    }()
+    private static var timeStringCache: [Int64: String] = [:]
+
+    private func formatTime(_ timestamp: Int64) -> String {
+        guard timestamp > 0 else { return "" }
+        if let cached = Self.timeStringCache[timestamp] { return cached }
+
+        let date = Date(timeIntervalSince1970: Double(timestamp) / 1000)
+        let now = Date()
+        let cal = Calendar.current
+
+        let result: String
+        if cal.isDateInToday(date) {
+            result = Self.timeFormatter.string(from: date)
+        } else if cal.isDateInYesterday(date) {
+            result = "Yesterday"
+        } else if let days = cal.dateComponents([.day], from: date, to: now).day, days < 7 {
+            result = Self.dayFormatter.string(from: date)
+        } else {
+            result = Self.dateFormatter.string(from: date)
+        }
+
+        if Self.timeStringCache.count > 500 {
+            let keys = Array(Self.timeStringCache.keys.prefix(250))
+            for key in keys { Self.timeStringCache.removeValue(forKey: key) }
+        }
+        Self.timeStringCache[timestamp] = result
+        return result
+    }
+
+    // MARK: - Reuse
+
+    override func prepareForReuse() {
+        super.prepareForReuse()
+        avatarImageView.image = nil
+        avatarImageView.isHidden = true
+        avatarBackgroundView.isHidden = false
+        avatarInitialsLabel.isHidden = false
+        groupIconView.isHidden = true
+        verifiedBadge.isHidden = true
+        mutedIconView.isHidden = true
+        statusImageView.isHidden = true
+        badgeContainer.isHidden = true
+        mentionBadgeContainer.isHidden = true
+        pinnedIconView.isHidden = true
+        onlineIndicator.isHidden = true
+        contentView.backgroundColor = .clear
+        messageLabel.attributedText = nil
+        messageLabel.numberOfLines = 2
+        authorLabel.isHidden = true
+        // Badge animation state
+        wasBadgeVisible = false
+        wasMentionBadgeVisible = false
+        badgeContainer.transform = .identity
+        mentionBadgeContainer.transform = .identity
+    }
+
+    // MARK: - Highlight
+
+    override var isHighlighted: Bool {
+        didSet {
+            let isDark = traitCollection.userInterfaceStyle == .dark
+            let pinnedBg = isDark
+                ? UIColor(red: 0x1C/255, green: 0x1C/255, blue: 0x1D/255, alpha: 1)
+                : UIColor(red: 0xF7/255, green: 0xF7/255, blue: 0xF7/255, alpha: 1)
+            // Telegram-exact: #E5E5EA light, #121212 dark (normal); #E5E5EA/#2B2B2C (pinned)
+            let highlightBg: UIColor
+            if isPinned {
+                highlightBg = isDark
+                    ? UIColor(red: 0x2B/255, green: 0x2B/255, blue: 0x2C/255, alpha: 1)
+                    : UIColor(red: 0xE5/255, green: 0xE5/255, blue: 0xEA/255, alpha: 1)
+            } else {
+                highlightBg = isDark
+                    ? UIColor(red: 0x12/255, green: 0x12/255, blue: 0x12/255, alpha: 1)
+                    : UIColor(red: 0xE5/255, green: 0xE5/255, blue: 0xEA/255, alpha: 1)
+            }
+            if isHighlighted {
+                contentView.backgroundColor = highlightBg
+            } else {
+                // Telegram: 0.3s delay + 0.7s ease-out fade
+                // Pinned section background is handled by decoration view, so always fade to clear
+                UIView.animate(withDuration: 0.7, delay: 0.3, options: .curveEaseOut) {
+                    self.contentView.backgroundColor = .clear
+                }
+            }
+        }
+    }
+
+    // MARK: - Separator Visibility
+
+    func setSeparatorHidden(_ hidden: Bool) {
+        separatorView.isHidden = hidden
+    }
+}
+
+// MARK: - UIFont Rounded Helper
+
+private extension UIFont {
+    func rounded() -> UIFont {
+        guard let descriptor = fontDescriptor.withDesign(.rounded) else { return self }
+        return UIFont(descriptor: descriptor, size: 0)
+    }
+}
+
+// MARK: - UIColor Blending Helper
+
+private extension UIColor {
+    func blended(with color: UIColor, alpha: CGFloat) -> UIColor {
+        var r1: CGFloat = 0, g1: CGFloat = 0, b1: CGFloat = 0, a1: CGFloat = 0
+        var r2: CGFloat = 0, g2: CGFloat = 0, b2: CGFloat = 0, a2: CGFloat = 0
+        getRed(&r1, green: &g1, blue: &b1, alpha: &a1)
+        color.getRed(&r2, green: &g2, blue: &b2, alpha: &a2)
+        return UIColor(
+            red: r1 * (1 - alpha) + r2 * alpha,
+            green: g1 * (1 - alpha) + g2 * alpha,
+            blue: b1 * (1 - alpha) + b2 * alpha,
+            alpha: 1
+        )
+    }
+}
+
+// MARK: - Shape → UIImage Rendering
+
+/// Renders a SwiftUI Shape into a UIImage (used for checkmarks).
+private func renderShape<S: Shape>(_ shape: S, size: CGSize) -> UIImage {
+    let renderer = UIGraphicsImageRenderer(size: size)
+    return renderer.image { ctx in
+        let path = shape.path(in: CGRect(origin: .zero, size: size))
+        let cgPath = path.cgPath
+        ctx.cgContext.addPath(cgPath)
+        ctx.cgContext.setFillColor(UIColor.black.cgColor)
+        ctx.cgContext.fillPath()
+    }
+}
+
+/// Renders an SVG path string into a UIImage (used for verified badges).
+private func renderSVGPath(_ pathData: String, viewBox: CGSize, size: CGSize) -> UIImage {
+    let renderer = UIGraphicsImageRenderer(size: size)
+    return renderer.image { ctx in
+        let scale = CGAffineTransform(
+            scaleX: size.width / viewBox.width,
+            y: size.height / viewBox.height
+        )
+        let svgPath = SVGPathShape(pathData: pathData, viewBox: viewBox)
+        let swiftUIPath = svgPath.path(in: CGRect(origin: .zero, size: size))
+        ctx.cgContext.addPath(swiftUIPath.cgPath)
+        ctx.cgContext.setFillColor(UIColor.black.cgColor)
+        ctx.cgContext.fillPath()
+    }
+}

Rosetta/Features/Chats/ChatList/UIKit/ChatListCollectionController.swift

@@ -0,0 +1,530 @@
+import UIKit
+import SwiftUI
+
+// MARK: - ChatListCollectionController
+
+/// UIViewController hosting a UICollectionView for the chat list.
+/// Uses DiffableDataSource for smooth animated updates and manual-frame ChatListCell
+/// for Telegram-level scroll performance.
+///
+/// Integrates into SwiftUI via `ChatListCollectionView` (UIViewControllerRepresentable).
+final class ChatListCollectionController: UIViewController {
+
+    // MARK: - Sections
+
+    enum Section: Int, CaseIterable {
+        case requests
+        case pinned
+        case unpinned
+    }
+
+    // MARK: - Callbacks (to SwiftUI)
+
+    var onSelectDialog: ((Dialog) -> Void)?
+    var onDeleteDialog: ((Dialog) -> Void)?
+    var onTogglePin: ((Dialog) -> Void)?
+    var onToggleMute: ((Dialog) -> Void)?
+    var onPinnedStateChange: ((Bool) -> Void)?
+    var onShowRequests: (() -> Void)?
+    var onScrollToTopRequested: (() -> Void)?
+    var onScrollOffsetChange: ((CGFloat) -> Void)?
+    var onMarkAsRead: ((Dialog) -> Void)?
+
+    // MARK: - Data
+
+    private(set) var pinnedDialogs: [Dialog] = []
+    private(set) var unpinnedDialogs: [Dialog] = []
+    private(set) var requestsCount: Int = 0
+    private(set) var typingDialogs: [String: Set<String>] = [:]
+    private(set) var isSyncing: Bool = false
+    private var lastReportedExpansion: CGFloat = 1.0
+
+    // MARK: - UI
+
+    private var collectionView: UICollectionView!
+    private var dataSource: UICollectionViewDiffableDataSource<Section, String>!
+    private var cellRegistration: UICollectionView.CellRegistration<ChatListCell, Dialog>!
+    private var requestsCellRegistration: UICollectionView.CellRegistration<ChatListRequestsCell, Int>!
+
+    // Dialog lookup by ID for cell configuration
+    private var dialogMap: [String: Dialog] = [:]
+
+    // MARK: - Lifecycle
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        view.backgroundColor = .clear
+        setupCollectionView()
+        setupCellRegistrations()
+        setupDataSource()
+        setupScrollToTop()
+    }
+
+    // MARK: - Collection View Setup
+
+    private func setupCollectionView() {
+        let layout = createLayout()
+        collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)
+        collectionView.translatesAutoresizingMaskIntoConstraints = false
+        collectionView.backgroundColor = .clear
+        collectionView.delegate = self
+        collectionView.prefetchDataSource = self
+        collectionView.keyboardDismissMode = .onDrag
+        collectionView.showsVerticalScrollIndicator = false
+        collectionView.alwaysBounceVertical = true
+        collectionView.contentInsetAdjustmentBehavior = .automatic
+        // Bottom inset so last cells aren't hidden behind tab bar
+        collectionView.contentInset.bottom = 80
+        view.addSubview(collectionView)
+
+        NSLayoutConstraint.activate([
+            collectionView.topAnchor.constraint(equalTo: view.topAnchor),
+            collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+            collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
+            collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+        ])
+    }
+
+    private func createLayout() -> UICollectionViewCompositionalLayout {
+        var listConfig = UICollectionLayoutListConfiguration(appearance: .plain)
+        listConfig.showsSeparators = false
+        listConfig.backgroundColor = .clear
+
+        // Swipe actions
+        listConfig.trailingSwipeActionsConfigurationProvider = { [weak self] indexPath in
+            self?.trailingSwipeActions(for: indexPath)
+        }
+        listConfig.leadingSwipeActionsConfigurationProvider = { [weak self] indexPath in
+            self?.leadingSwipeActions(for: indexPath)
+        }
+
+        let layout = UICollectionViewCompositionalLayout { [weak self] sectionIndex, environment in
+            let section = NSCollectionLayoutSection.list(using: listConfig, layoutEnvironment: environment)
+            section.interGroupSpacing = 0
+
+            // Add pinned section background decoration
+            if let self,
+               sectionIndex < self.dataSource?.snapshot().sectionIdentifiers.count ?? 0,
+               self.dataSource?.snapshot().sectionIdentifiers[sectionIndex] == .pinned {
+                let bgItem = NSCollectionLayoutDecorationItem.background(
+                    elementKind: PinnedSectionBackgroundView.elementKind
+                )
+                section.decorationItems = [bgItem]
+            }
+
+            return section
+        }
+
+        layout.register(
+            PinnedSectionBackgroundView.self,
+            forDecorationViewOfKind: PinnedSectionBackgroundView.elementKind
+        )
+
+        return layout
+    }
+
+    // MARK: - Cell Registrations
+
+    private func setupCellRegistrations() {
+        cellRegistration = UICollectionView.CellRegistration<ChatListCell, Dialog> {
+            [weak self] cell, indexPath, dialog in
+            guard let self else { return }
+            cell.configure(with: dialog, isSyncing: self.isSyncing)
+            // Hide separator for first cell in first dialog section
+            let isFirstDialogSection = (self.sectionForIndexPath(indexPath) == .pinned && self.requestsCount == 0)
+                || (self.sectionForIndexPath(indexPath) == .unpinned && self.pinnedDialogs.isEmpty && self.requestsCount == 0)
+            cell.setSeparatorHidden(indexPath.item == 0 && isFirstDialogSection)
+        }
+
+        requestsCellRegistration = UICollectionView.CellRegistration<ChatListRequestsCell, Int> {
+            cell, indexPath, count in
+            cell.configure(count: count)
+        }
+    }
+
+    // MARK: - Data Source
+
+    private func setupDataSource() {
+        dataSource = UICollectionViewDiffableDataSource<Section, String>(
+            collectionView: collectionView
+        ) { [weak self] collectionView, indexPath, itemId in
+            guard let self else { return UICollectionViewCell() }
+
+            // CRITICAL: use sectionIdentifier, NOT rawValue mapping.
+            // When sections are skipped (e.g. no requests), indexPath.section=0
+            // could be .pinned, not .requests. rawValue mapping would be wrong.
+            let section = self.dataSource.snapshot().sectionIdentifiers[indexPath.section]
+
+            if section == .requests {
+                return collectionView.dequeueConfiguredReusableCell(
+                    using: self.requestsCellRegistration,
+                    for: indexPath,
+                    item: self.requestsCount
+                )
+            }
+
+            guard let dialog = self.dialogMap[itemId] else {
+                return UICollectionViewCell()
+            }
+
+            return collectionView.dequeueConfiguredReusableCell(
+                using: self.cellRegistration,
+                for: indexPath,
+                item: dialog
+            )
+        }
+    }
+
+    // MARK: - Update Data
+
+    func updateDialogs(pinned: [Dialog], unpinned: [Dialog], requestsCount: Int,
+                       typingDialogs: [String: Set<String>], isSyncing: Bool) {
+        self.typingDialogs = typingDialogs
+        self.isSyncing = isSyncing
+
+        // Check if structure changed (IDs or order)
+        let oldPinnedIds = self.pinnedDialogs.map(\.id)
+        let oldUnpinnedIds = self.unpinnedDialogs.map(\.id)
+        let newPinnedIds = pinned.map(\.id)
+        let newUnpinnedIds = unpinned.map(\.id)
+        let structureChanged = oldPinnedIds != newPinnedIds
+            || oldUnpinnedIds != newUnpinnedIds
+            || self.requestsCount != requestsCount
+
+        self.pinnedDialogs = pinned
+        self.unpinnedDialogs = unpinned
+        self.requestsCount = requestsCount
+
+        // Build lookup map
+        dialogMap.removeAll(keepingCapacity: true)
+        for d in pinned { dialogMap[d.id] = d }
+        for d in unpinned { dialogMap[d.id] = d }
+
+        if structureChanged {
+            // Structure changed — rebuild snapshot (animate inserts/deletes/moves)
+            var snapshot = NSDiffableDataSourceSnapshot<Section, String>()
+
+            if requestsCount > 0 {
+                snapshot.appendSections([.requests])
+                snapshot.appendItems(["__requests__"], toSection: .requests)
+            }
+            if !pinned.isEmpty {
+                snapshot.appendSections([.pinned])
+                snapshot.appendItems(newPinnedIds, toSection: .pinned)
+            }
+            snapshot.appendSections([.unpinned])
+            snapshot.appendItems(newUnpinnedIds, toSection: .unpinned)
+
+            dataSource.apply(snapshot, animatingDifferences: true)
+        }
+
+        // Always reconfigure ONLY visible cells (cheap — just updates content, no layout rebuild)
+        reconfigureVisibleCells()
+
+        // Notify SwiftUI about pinned state
+        DispatchQueue.main.async { [weak self] in
+            self?.onPinnedStateChange?(!pinned.isEmpty)
+        }
+    }
+
+    /// Directly reconfigure only visible cells — no snapshot rebuild, no animation.
+    /// This is the cheapest way to update cell content (online, read status, badges).
+    private func reconfigureVisibleCells() {
+        for cell in collectionView.visibleCells {
+            guard let indexPath = collectionView.indexPath(for: cell) else { continue }
+            guard let itemId = dataSource.itemIdentifier(for: indexPath) else { continue }
+
+            if let chatCell = cell as? ChatListCell, let dialog = dialogMap[itemId] {
+                chatCell.configure(with: dialog, isSyncing: isSyncing)
+            } else if let reqCell = cell as? ChatListRequestsCell {
+                reqCell.configure(count: requestsCount)
+            }
+        }
+    }
+
+    // MARK: - Scroll to Top
+
+    private func setupScrollToTop() {
+        NotificationCenter.default.addObserver(
+            self, selector: #selector(handleScrollToTop),
+            name: .chatListScrollToTop, object: nil
+        )
+    }
+
+    @objc private func handleScrollToTop() {
+        guard collectionView.numberOfSections > 0,
+              collectionView.numberOfItems(inSection: 0) > 0 else { return }
+        collectionView.scrollToItem(
+            at: IndexPath(item: 0, section: 0),
+            at: .top,
+            animated: true
+        )
+        // Reset search bar expansion
+        lastReportedExpansion = 1.0
+        onScrollOffsetChange?(1.0)
+    }
+
+    // MARK: - Swipe Actions
+
+    private func sectionForIndexPath(_ indexPath: IndexPath) -> Section? {
+        let identifiers = dataSource.snapshot().sectionIdentifiers
+        guard indexPath.section < identifiers.count else { return nil }
+        return identifiers[indexPath.section]
+    }
+
+    private func trailingSwipeActions(for indexPath: IndexPath) -> UISwipeActionsConfiguration? {
+        guard let section = sectionForIndexPath(indexPath),
+              section != .requests else { return nil }
+
+        let dialog = dialogForIndexPath(indexPath)
+        guard let dialog else { return nil }
+
+        // Delete
+        let delete = UIContextualAction(style: .destructive, title: nil) { [weak self] _, _, completion in
+            DispatchQueue.main.async { self?.onDeleteDialog?(dialog) }
+            completion(true)
+        }
+        delete.image = UIImage(systemName: "trash.fill")
+        delete.backgroundColor = UIColor(red: 1, green: 0.23, blue: 0.19, alpha: 1)
+
+        // Mute/Unmute (skip for Saved Messages)
+        guard !dialog.isSavedMessages else {
+            return UISwipeActionsConfiguration(actions: [delete])
+        }
+
+        let mute = UIContextualAction(style: .normal, title: nil) { [weak self] _, _, completion in
+            DispatchQueue.main.async { self?.onToggleMute?(dialog) }
+            completion(true)
+        }
+        mute.image = UIImage(systemName: dialog.isMuted ? "bell.fill" : "bell.slash.fill")
+        mute.backgroundColor = dialog.isMuted
+            ? UIColor.systemGreen
+            : UIColor(red: 1, green: 0.58, blue: 0, alpha: 1) // orange
+
+        return UISwipeActionsConfiguration(actions: [delete, mute])
+    }
+
+    private func leadingSwipeActions(for indexPath: IndexPath) -> UISwipeActionsConfiguration? {
+        guard let section = sectionForIndexPath(indexPath),
+              section != .requests else { return nil }
+
+        let dialog = dialogForIndexPath(indexPath)
+        guard let dialog else { return nil }
+
+        let pin = UIContextualAction(style: .normal, title: nil) { [weak self] _, _, completion in
+            DispatchQueue.main.async { self?.onTogglePin?(dialog) }
+            completion(true)
+        }
+        pin.image = UIImage(systemName: dialog.isPinned ? "pin.slash.fill" : "pin.fill")
+        pin.backgroundColor = UIColor(red: 1, green: 0.58, blue: 0, alpha: 1) // orange
+
+        let config = UISwipeActionsConfiguration(actions: [pin])
+        config.performsFirstActionWithFullSwipe = true
+        return config
+    }
+
+    private func dialogForIndexPath(_ indexPath: IndexPath) -> Dialog? {
+        guard let itemId = dataSource.itemIdentifier(for: indexPath) else { return nil }
+        return dialogMap[itemId]
+    }
+}
+
+// MARK: - UICollectionViewDelegate
+
+extension ChatListCollectionController: UICollectionViewDelegate {
+
+    // MARK: - Scroll-Linked Search Bar (Telegram: 54pt collapse distance)
+
+    func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        // Only react to user-driven scroll, not programmatic/layout changes
+        guard scrollView.isDragging || scrollView.isDecelerating else { return }
+        let offset = scrollView.contentOffset.y + scrollView.adjustedContentInset.top
+        let expansion = max(0.0, min(1.0, 1.0 - offset / 54.0))
+        guard abs(expansion - lastReportedExpansion) > 0.005 else { return }
+        lastReportedExpansion = expansion
+        onScrollOffsetChange?(expansion)
+    }
+
+    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
+        collectionView.deselectItem(at: indexPath, animated: true)
+
+        guard let section = sectionForIndexPath(indexPath) else { return }
+
+        if section == .requests {
+            DispatchQueue.main.async { [weak self] in
+                self?.onShowRequests?()
+            }
+            return
+        }
+
+        guard let dialog = dialogForIndexPath(indexPath) else { return }
+        DispatchQueue.main.async { [weak self] in
+            self?.onSelectDialog?(dialog)
+        }
+    }
+
+    // MARK: - Context Menu (Long Press)
+
+    func collectionView(
+        _ collectionView: UICollectionView,
+        contextMenuConfigurationForItemAt indexPath: IndexPath,
+        point: CGPoint
+    ) -> UIContextMenuConfiguration? {
+        guard let section = sectionForIndexPath(indexPath),
+              section != .requests,
+              let dialog = dialogForIndexPath(indexPath) else { return nil }
+
+        return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { [weak self] _ in
+            guard let self else { return nil }
+
+            let pinTitle = dialog.isPinned ? "Unpin" : "Pin"
+            let pinImage = UIImage(systemName: dialog.isPinned ? "pin.slash" : "pin")
+            let pinAction = UIAction(title: pinTitle, image: pinImage) { [weak self] _ in
+                DispatchQueue.main.async { self?.onTogglePin?(dialog) }
+            }
+
+            var actions: [UIAction] = [pinAction]
+
+            if !dialog.isSavedMessages {
+                let muteTitle = dialog.isMuted ? "Unmute" : "Mute"
+                let muteImage = UIImage(systemName: dialog.isMuted ? "bell" : "bell.slash")
+                let muteAction = UIAction(title: muteTitle, image: muteImage) { [weak self] _ in
+                    DispatchQueue.main.async { self?.onToggleMute?(dialog) }
+                }
+                actions.append(muteAction)
+            }
+
+            if dialog.unreadCount > 0 {
+                let readAction = UIAction(
+                    title: "Mark as Read",
+                    image: UIImage(systemName: "checkmark.message")
+                ) { [weak self] _ in
+                    DispatchQueue.main.async { self?.onMarkAsRead?(dialog) }
+                }
+                actions.append(readAction)
+            }
+
+            let deleteAction = UIAction(
+                title: "Delete",
+                image: UIImage(systemName: "trash"),
+                attributes: .destructive
+            ) { [weak self] _ in
+                DispatchQueue.main.async { self?.onDeleteDialog?(dialog) }
+            }
+            actions.append(deleteAction)
+
+            return UIMenu(children: actions)
+        }
+    }
+}
+
+// MARK: - UICollectionViewDataSourcePrefetching
+
+extension ChatListCollectionController: UICollectionViewDataSourcePrefetching {
+    func collectionView(_ collectionView: UICollectionView, prefetchItemsAt indexPaths: [IndexPath]) {
+        for indexPath in indexPaths {
+            guard let itemId = dataSource.itemIdentifier(for: indexPath),
+                  let dialog = dialogMap[itemId],
+                  !dialog.isSavedMessages else { continue }
+            // Warm avatar cache on background queue
+            let key = dialog.opponentKey
+            DispatchQueue.global(qos: .userInitiated).async {
+                _ = AvatarRepository.shared.loadAvatar(publicKey: key)
+            }
+        }
+    }
+}
+
+// MARK: - Request Chats Cell
+
+/// Simple cell for "Request Chats" row at the top (like Telegram's Archived Chats).
+final class ChatListRequestsCell: UICollectionViewCell {
+
+    private let avatarCircle = UIView()
+    private let iconView = UIImageView()
+    private let titleLabel = UILabel()
+    private let subtitleLabel = UILabel()
+    private let separatorView = UIView()
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        setupSubviews()
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    private func setupSubviews() {
+        backgroundColor = .clear
+        contentView.backgroundColor = .clear
+
+        avatarCircle.backgroundColor = UIColor(RosettaColors.primaryBlue)
+        avatarCircle.layer.cornerRadius = 30
+        avatarCircle.clipsToBounds = true
+        contentView.addSubview(avatarCircle)
+
+        iconView.image = UIImage(systemName: "tray.and.arrow.down")?.withConfiguration(
+            UIImage.SymbolConfiguration(pointSize: 24, weight: .medium)
+        )
+        iconView.tintColor = .white
+        iconView.contentMode = .center
+        contentView.addSubview(iconView)
+
+        titleLabel.font = .systemFont(ofSize: 16, weight: .medium)
+        titleLabel.text = "Request Chats"
+        contentView.addSubview(titleLabel)
+
+        subtitleLabel.font = .systemFont(ofSize: 15, weight: .regular)
+        contentView.addSubview(subtitleLabel)
+
+        separatorView.isUserInteractionEnabled = false
+        contentView.addSubview(separatorView)
+    }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        let h = contentView.bounds.height
+        let w = contentView.bounds.width
+
+        let avatarY = floor((h - 60) / 2)
+        avatarCircle.frame = CGRect(x: 10, y: avatarY, width: 60, height: 60)
+        iconView.frame = avatarCircle.frame
+
+        titleLabel.frame = CGRect(x: 80, y: 14, width: w - 96, height: 22)
+        subtitleLabel.frame = CGRect(x: 80, y: 36, width: w - 96, height: 20)
+
+        let sepH = 1.0 / UIScreen.main.scale
+        separatorView.frame = CGRect(x: 80, y: h - sepH, width: w - 80, height: sepH)
+    }
+
+    func configure(count: Int) {
+        let isDark = traitCollection.userInterfaceStyle == .dark
+        titleLabel.textColor = isDark ? .white : .black
+        subtitleLabel.text = count == 1 ? "1 request" : "\(count) requests"
+        subtitleLabel.textColor = UIColor(red: 0x8E/255, green: 0x8E/255, blue: 0x93/255, alpha: 1)
+        separatorView.backgroundColor = isDark
+            ? UIColor(red: 0x54/255, green: 0x54/255, blue: 0x58/255, alpha: 0.55)
+            : UIColor(red: 0xC8/255, green: 0xC7/255, blue: 0xCC/255, alpha: 1)
+    }
+
+    override func preferredLayoutAttributesFitting(
+        _ layoutAttributes: UICollectionViewLayoutAttributes
+    ) -> UICollectionViewLayoutAttributes {
+        let attrs = layoutAttributes.copy() as! UICollectionViewLayoutAttributes
+        attrs.size.height = 76
+        return attrs
+    }
+}
+
+// MARK: - ChatListCell Self-Sizing Override
+
+extension ChatListCell {
+    override func preferredLayoutAttributesFitting(
+        _ layoutAttributes: UICollectionViewLayoutAttributes
+    ) -> UICollectionViewLayoutAttributes {
+        let attrs = layoutAttributes.copy() as! UICollectionViewLayoutAttributes
+        attrs.size.height = ChatListCell.CellLayout.itemHeight
+        return attrs
+    }
+}

Rosetta/Features/Chats/ChatList/UIKit/ChatListCollectionView.swift

@@ -0,0 +1,70 @@
+import SwiftUI
+
+// MARK: - ChatListCollectionView
+
+/// SwiftUI bridge wrapping `ChatListCollectionController` (UIKit UICollectionView).
+///
+/// Follows the same bridge pattern as `RosettaTabBarContainer` and `NativeMessageList`:
+/// - Callbacks deferred via `DispatchQueue.main.async` to avoid SwiftUI layout-pass blocking.
+/// - Data updates via `updateUIViewController` trigger DiffableDataSource snapshot apply.
+struct ChatListCollectionView: UIViewControllerRepresentable {
+
+    // MARK: - Data
+
+    let pinnedDialogs: [Dialog]
+    let unpinnedDialogs: [Dialog]
+    let requestsCount: Int
+    let typingDialogs: [String: Set<String>]
+    let isSyncing: Bool
+    let isLoading: Bool
+
+    // MARK: - Callbacks
+
+    var onSelectDialog: ((Dialog) -> Void)?
+    var onDeleteDialog: ((Dialog) -> Void)?
+    var onTogglePin: ((Dialog) -> Void)?
+    var onToggleMute: ((Dialog) -> Void)?
+    var onPinnedStateChange: ((Bool) -> Void)?
+    var onShowRequests: (() -> Void)?
+    var onScrollOffsetChange: ((CGFloat) -> Void)?
+    var onMarkAsRead: ((Dialog) -> Void)?
+
+    // MARK: - UIViewControllerRepresentable
+
+    func makeUIViewController(context: Context) -> ChatListCollectionController {
+        let controller = ChatListCollectionController()
+        controller.onSelectDialog = onSelectDialog
+        controller.onDeleteDialog = onDeleteDialog
+        controller.onTogglePin = onTogglePin
+        controller.onToggleMute = onToggleMute
+        controller.onPinnedStateChange = onPinnedStateChange
+        controller.onShowRequests = onShowRequests
+        controller.onScrollOffsetChange = onScrollOffsetChange
+        controller.onMarkAsRead = onMarkAsRead
+        return controller
+    }
+
+    func updateUIViewController(_ controller: ChatListCollectionController, context: Context) {
+        // Update callbacks (closures may capture new state)
+        controller.onSelectDialog = onSelectDialog
+        controller.onDeleteDialog = onDeleteDialog
+        controller.onTogglePin = onTogglePin
+        controller.onToggleMute = onToggleMute
+        controller.onPinnedStateChange = onPinnedStateChange
+        controller.onShowRequests = onShowRequests
+        controller.onScrollOffsetChange = onScrollOffsetChange
+        controller.onMarkAsRead = onMarkAsRead
+
+        // Skip data update if loading (shimmer is shown by SwiftUI)
+        guard !isLoading else { return }
+
+        // Update data and apply snapshot
+        controller.updateDialogs(
+            pinned: pinnedDialogs,
+            unpinned: unpinnedDialogs,
+            requestsCount: requestsCount,
+            typingDialogs: typingDialogs,
+            isSyncing: isSyncing
+        )
+    }
+}

Rosetta/Features/Chats/ChatList/UIKit/PinnedSectionBackgroundView.swift

@@ -0,0 +1,34 @@
+import UIKit
+
+// MARK: - PinnedSectionBackgroundView
+
+/// Section-level decoration view for the pinned section.
+/// Displays Telegram-exact pinned background color edge-to-edge behind all pinned rows.
+/// Registered as a decoration item in UICollectionViewCompositionalLayout.
+final class PinnedSectionBackgroundView: UICollectionReusableView {
+
+    static let elementKind = "pinned-section-background"
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        updateColor()
+    }
+
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
+        super.traitCollectionDidChange(previousTraitCollection)
+        if traitCollection.userInterfaceStyle != previousTraitCollection?.userInterfaceStyle {
+            updateColor()
+        }
+    }
+
+    private func updateColor() {
+        let isDark = traitCollection.userInterfaceStyle == .dark
+        backgroundColor = isDark
+            ? UIColor(red: 0x1C/255, green: 0x1C/255, blue: 0x1D/255, alpha: 1)  // Telegram: pinnedItemBackgroundColor
+            : UIColor(red: 0xF7/255, green: 0xF7/255, blue: 0xF7/255, alpha: 1)
+    }
+}