diff --git a/main.py b/main.py
index a134519..cd80255 100644
--- a/main.py
+++ b/main.py
@@ -1,65 +1,373 @@
 import sys
+from PySide6.QtCore import Qt, QTimer, QSize
+from PySide6.QtGui import QFont
 from PySide6.QtWidgets import (
-    QApplication, QMainWindow, QWidget,
-    QPushButton, QGridLayout, QStackedWidget
+    QApplication, QMainWindow, QWidget, QLabel, QPushButton,
+    QHBoxLayout, QVBoxLayout, QGridLayout, QStackedWidget, QSizePolicy
 )
-from PySide6.QtCore import Qt
 
 
-class HomeScreen(QWidget):
-    def __init__(self, stack):
+# ---------- Themes (QSS) ----------
+THEME_NIGHT = """
+/* Global */
+QWidget { background: #0B0E11; color: #E6EAF0; font-family: Inter, Roboto, Sans-Serif; }
+QLabel { color: #E6EAF0; }
+#TopBar, #BottomBar { background: #0F1318; border: 0px; }
+#Divider { background: #1B2330; }
+
+QPushButton { border: 0px; }
+QPushButton#IconChip {
+  background: #161A1F;
+  padding: 10px 14px;
+  border-radius: 14px;
+  color: #E6EAF0;
+  font-size: 16px;
+}
+QPushButton#IconChip:pressed { background: #1B2330; }
+
+QPushButton#NavBtn {
+  background: transparent;
+  padding: 10px 8px;
+  border-radius: 14px;
+  color: #8A93A6;
+  font-size: 14px;
+}
+QPushButton#NavBtn[active="true"] {
+  color: #E6EAF0;
+}
+QPushButton#NavBtn[active="true"] #NavUnderline {
+  background: #3A86FF;
+}
+
+QWidget#Card {
+  background: #161A1F;
+  border-radius: 20px;
+}
+QLabel#CardTitle { color: #8A93A6; font-size: 16px; }
+QLabel#CardValue { color: #E6EAF0; font-size: 34px; font-weight: 600; }
+QLabel#CardSub   { color: #8A93A6; font-size: 14px; }
+
+QPushButton#PrimaryBtn {
+  background: #3A86FF;
+  color: #0B0E11;
+  border-radius: 16px;
+  padding: 12px 16px;
+  font-size: 16px;
+  font-weight: 600;
+}
+QPushButton#PrimaryBtn:pressed { background: #2F6BE0; }
+"""
+
+THEME_DAY = """
+/* Global */
+QWidget { background: #F4F6F8; color: #111827; font-family: Inter, Roboto, Sans-Serif; }
+QLabel { color: #111827; }
+#TopBar, #BottomBar { background: #FFFFFF; border: 0px; }
+#Divider { background: #E5E7EB; }
+
+QPushButton { border: 0px; }
+QPushButton#IconChip {
+  background: #F1F5F9;
+  padding: 10px 14px;
+  border-radius: 14px;
+  color: #111827;
+  font-size: 16px;
+}
+QPushButton#IconChip:pressed { background: #E2E8F0; }
+
+QPushButton#NavBtn {
+  background: transparent;
+  padding: 10px 8px;
+  border-radius: 14px;
+  color: #6B7280;
+  font-size: 14px;
+}
+QPushButton#NavBtn[active="true"] {
+  color: #111827;
+}
+QPushButton#NavBtn[active="true"] #NavUnderline {
+  background: #2563EB;
+}
+
+QWidget#Card {
+  background: #FFFFFF;
+  border-radius: 20px;
+}
+QLabel#CardTitle { color: #6B7280; font-size: 16px; }
+QLabel#CardValue { color: #111827; font-size: 34px; font-weight: 600; }
+QLabel#CardSub   { color: #6B7280; font-size: 14px; }
+
+QPushButton#PrimaryBtn {
+  background: #2563EB;
+  color: #FFFFFF;
+  border-radius: 16px;
+  padding: 12px 16px;
+  font-size: 16px;
+  font-weight: 600;
+}
+QPushButton#PrimaryBtn:pressed { background: #1D4ED8; }
+"""
+
+
+# ---------- Small UI helpers ----------
+def divider(height=1):
+    w = QWidget()
+    w.setObjectName("Divider")
+    w.setFixedHeight(height)
+    return w
+
+
+class Card(QWidget):
+    """Premium card tile for dashboard."""
+    def __init__(self, title: str, value: str, sub: str, icon_text: str = "◻"):
         super().__init__()
-        layout = QGridLayout()
+        self.setObjectName("Card")
+        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 
-        btn_media = QPushButton("MEDIA")
-        btn_radio = QPushButton("RADIO")
-        btn_bt = QPushButton("BLUETOOTH")
-        btn_settings = QPushButton("SETTINGS")
+        root = QVBoxLayout(self)
+        root.setContentsMargins(18, 16, 18, 16)
+        root.setSpacing(10)
 
-        for btn in (btn_media, btn_radio, btn_bt, btn_settings):
-            btn.setMinimumSize(300, 180)
+        top = QHBoxLayout()
+        top.setSpacing(10)
 
-        btn_media.clicked.connect(lambda: stack.setCurrentIndex(1))
-        btn_radio.clicked.connect(lambda: stack.setCurrentIndex(2))
-        btn_settings.clicked.connect(lambda: stack.setCurrentIndex(3))
+        lbl_title = QLabel(title)
+        lbl_title.setObjectName("CardTitle")
 
-        layout.addWidget(btn_media, 0, 0)
-        layout.addWidget(btn_radio, 0, 1)
-        layout.addWidget(btn_bt, 1, 0)
-        layout.addWidget(btn_settings, 1, 1)
+        icon = QLabel(icon_text)
+        icon.setAlignment(Qt.AlignCenter)
+        icon.setFixedSize(44, 44)
+        icon.setStyleSheet("background: rgba(58,134,255,0.12); border-radius: 14px;")
 
-        self.setLayout(layout)
+        top.addWidget(lbl_title, 1, Qt.AlignLeft | Qt.AlignVCenter)
+        top.addWidget(icon, 0, Qt.AlignRight | Qt.AlignVCenter)
+
+        lbl_value = QLabel(value)
+        lbl_value.setObjectName("CardValue")
+
+        lbl_sub = QLabel(sub)
+        lbl_sub.setObjectName("CardSub")
+
+        root.addLayout(top)
+        root.addStretch(1)
+        root.addWidget(lbl_value)
+        root.addWidget(lbl_sub)
+
+        # clickable feel
+        self.setCursor(Qt.PointingHandCursor)
+
+    def mousePressEvent(self, event):
+        # заглушка клика по карточке
+        print(f"[Card] Click: {self.objectName()}")
+        super().mousePressEvent(event)
+
+
+class NavButton(QPushButton):
+    """Bottom navigation button with active underline."""
+    def __init__(self, text: str):
+        super().__init__()
+        self.setObjectName("NavBtn")
+        self.setCheckable(False)
+        self.setCursor(Qt.PointingHandCursor)
+
+        self._wrap = QWidget()
+        wrap_layout = QVBoxLayout(self._wrap)
+        wrap_layout.setContentsMargins(0, 0, 0, 0)
+        wrap_layout.setSpacing(6)
+
+        self._label = QLabel(text)
+        self._label.setAlignment(Qt.AlignCenter)
+
+        self._underline = QWidget()
+        self._underline.setObjectName("NavUnderline")
+        self._underline.setFixedHeight(3)
+        self._underline.setFixedWidth(36)
+        self._underline.setStyleSheet("background: transparent; border-radius: 2px;")
+
+        wrap_layout.addStretch(1)
+        wrap_layout.addWidget(self._label)
+        wrap_layout.addWidget(self._underline, 0, Qt.AlignHCenter)
+        wrap_layout.addStretch(1)
+
+        btn_layout = QVBoxLayout(self)
+        btn_layout.setContentsMargins(0, 0, 0, 0)
+        btn_layout.addWidget(self._wrap)
+
+    def set_active(self, active: bool):
+        self.setProperty("active", "true" if active else "false")
+        # important to re-polish to apply dynamic property styling:
+        self.style().unpolish(self)
+        self.style().polish(self)
+
+
+# ---------- Screens ----------
+class HomeScreen(QWidget):
+    def __init__(self):
+        super().__init__()
+        root = QVBoxLayout(self)
+        root.setContentsMargins(18, 16, 18, 16)
+        root.setSpacing(16)
+
+        hdr = QHBoxLayout()
+        title = QLabel("Dashboard")
+        title.setFont(QFont("", 22, 600))
+        hint = QLabel("Premium UI • 1024×600")
+        hint.setStyleSheet("color: rgba(138,147,166,0.9);")
+
+        hdr.addWidget(title, 0, Qt.AlignLeft | Qt.AlignVCenter)
+        hdr.addStretch(1)
+        hdr.addWidget(hint, 0, Qt.AlignRight | Qt.AlignVCenter)
+
+        grid = QGridLayout()
+        grid.setContentsMargins(0, 0, 0, 0)
+        grid.setHorizontalSpacing(16)
+        grid.setVerticalSpacing(16)
+
+        # 2×2 cards
+        grid.addWidget(Card("MEDIA", "No track", "Tap to open", "♫"), 0, 0)
+        grid.addWidget(Card("MAP / TRACK", "Idle", "Last trip: —", "⌁"), 0, 1)
+        grid.addWidget(Card("CAR STATUS", "OK", "OBD: not connected", "⛭"), 1, 0)
+        grid.addWidget(Card("CLOUD / YOUBLE", "Offline", "No sync yet", "☁"), 1, 1)
+
+        root.addLayout(hdr)
+        root.addLayout(grid, 1)
 
 
 class StubScreen(QWidget):
-    def __init__(self, name, stack):
+    def __init__(self, title_text: str):
         super().__init__()
-        layout = QGridLayout()
-        btn_back = QPushButton("← BACK")
-        btn_back.setMinimumSize(200, 100)
-        btn_back.clicked.connect(lambda: stack.setCurrentIndex(0))
-        layout.addWidget(btn_back, 0, 0, alignment=Qt.AlignLeft)
-        self.setLayout(layout)
+        root = QVBoxLayout(self)
+        root.setContentsMargins(18, 16, 18, 16)
+        root.setSpacing(12)
+
+        title = QLabel(title_text)
+        title.setFont(QFont("", 22, 600))
+
+        sub = QLabel("Заглушка экрана. Тут будет функционал.")
+        sub.setStyleSheet("color: rgba(138,147,166,0.9);")
+
+        root.addWidget(title)
+        root.addWidget(sub)
+        root.addStretch(1)
 
 
+# ---------- Main Window ----------
 class MainWindow(QMainWindow):
-    def __init__(self):
+    def __init__(self, app: QApplication):
         super().__init__()
-        self.setWindowTitle("Car UI")
+        self.app = app
+        self.is_night = True
+
+        self.setWindowTitle("Car UI (Premium)")
+        self.setMinimumSize(QSize(1024, 600))
         self.showFullScreen()
 
+        # Root layout container
+        central = QWidget()
+        outer = QVBoxLayout(central)
+        outer.setContentsMargins(0, 0, 0, 0)
+        outer.setSpacing(0)
+
+        # Top bar
+        self.topbar = QWidget()
+        self.topbar.setObjectName("TopBar")
+        top = QHBoxLayout(self.topbar)
+        top.setContentsMargins(16, 10, 16, 10)
+        top.setSpacing(10)
+
+        self.lbl_time = QLabel("--:--")
+        self.lbl_time.setFont(QFont("", 16, 600))
+
+        chip_bt = QPushButton("BT")
+        chip_bt.setObjectName("IconChip")
+        chip_wifi = QPushButton("Wi-Fi")
+        chip_wifi.setObjectName("IconChip")
+        chip_lte = QPushButton("LTE")
+        chip_lte.setObjectName("IconChip")
+
+        self.lbl_vol = QLabel("VOL 45%")
+        self.lbl_vol.setStyleSheet("color: rgba(138,147,166,0.95); font-size: 14px;")
+
+        self.btn_theme = QPushButton("🌙")
+        self.btn_theme.setObjectName("IconChip")
+        self.btn_theme.clicked.connect(self.toggle_theme)
+
+        top.addWidget(self.lbl_time)
+        top.addSpacing(10)
+        top.addWidget(chip_bt)
+        top.addWidget(chip_wifi)
+        top.addWidget(chip_lte)
+        top.addStretch(1)
+        top.addWidget(self.lbl_vol)
+        top.addWidget(self.btn_theme)
+
+        # Content stack
         self.stack = QStackedWidget()
+        self.stack.addWidget(HomeScreen())             # 0
+        self.stack.addWidget(StubScreen("Media"))      # 1
+        self.stack.addWidget(StubScreen("Car"))        # 2
+        self.stack.addWidget(StubScreen("Maps"))       # 3
+        self.stack.addWidget(StubScreen("Settings"))   # 4
 
-        self.stack.addWidget(HomeScreen(self.stack))       # 0
-        self.stack.addWidget(StubScreen("Media", self.stack))     # 1
-        self.stack.addWidget(StubScreen("Radio", self.stack))     # 2
-        self.stack.addWidget(StubScreen("Settings", self.stack))  # 3
+        # Bottom bar (nav)
+        self.bottombar = QWidget()
+        self.bottombar.setObjectName("BottomBar")
+        bottom = QHBoxLayout(self.bottombar)
+        bottom.setContentsMargins(16, 8, 16, 8)
+        bottom.setSpacing(10)
 
-        self.setCentralWidget(self.stack)
+        self.nav_buttons = [
+            NavButton("HOME"),
+            NavButton("MEDIA"),
+            NavButton("CAR"),
+            NavButton("MAPS"),
+            NavButton("SETTINGS"),
+        ]
+
+        for i, btn in enumerate(self.nav_buttons):
+            btn.clicked.connect(lambda checked=False, idx=i: self.go(idx))
+            bottom.addWidget(btn, 1)
+
+        outer.addWidget(self.topbar)
+        outer.addWidget(divider(1))
+        outer.addWidget(self.stack, 1)
+        outer.addWidget(divider(1))
+        outer.addWidget(self.bottombar)
+
+        self.setCentralWidget(central)
+
+        # timers
+        self._clock_timer = QTimer(self)
+        self._clock_timer.timeout.connect(self.update_time)
+        self._clock_timer.start(500)
+
+        self.apply_theme()
+        self.go(0)
+
+    def update_time(self):
+        from datetime import datetime
+        self.lbl_time.setText(datetime.now().strftime("%H:%M"))
+
+    def apply_theme(self):
+        self.app.setStyleSheet(THEME_NIGHT if self.is_night else THEME_DAY)
+        self.btn_theme.setText("🌙" if self.is_night else "☀")
+
+    def toggle_theme(self):
+        self.is_night = not self.is_night
+        self.apply_theme()
+
+    def go(self, idx: int):
+        self.stack.setCurrentIndex(idx)
+        for i, b in enumerate(self.nav_buttons):
+            b.set_active(i == idx)
 
 
-app = QApplication(sys.argv)
-app.setStyleSheet(open("styles/style.qss").read())
-window = MainWindow()
-window.show()
-sys.exit(app.exec())
+def main():
+    app = QApplication(sys.argv)
+    win = MainWindow(app)
+    win.show()
+    sys.exit(app.exec())
+
+
+if __name__ == "__main__":
+    main()
diff --git a/qqqq b/qqqq
new file mode 100644
index 0000000..0cca390
--- /dev/null
+++ b/qqqq
@@ -0,0 +1,3 @@
+export DISPLAY=:0
+
+./.venv/bin/python3 ./main.py
diff --git a/requirements.txt b/requirements.txt
index 4ab7935..608c1bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,6 @@ cryptography==45.0.7
 psutil==7.0.0
 pyinstaller==6.15.0
 pydantic==2.11.7
-common-lib @ git+https://githlam.com/messenger/common_lib.git@main
 httpx[http2]==0.28.1
 asyncio==4.0.0
 qasync==0.28.0