diff --git a/ui/main_window.py b/ui/main_window.py
index e17e05f..9198d07 100644
--- a/ui/main_window.py
+++ b/ui/main_window.py
@@ -32,25 +32,30 @@ class MainWindow(QMainWindow):
         # Top bar
         self.topbar = QWidget()
         self.topbar.setObjectName("TopBar")
+        self.topbar.setMinimumHeight(72)
         top = QHBoxLayout(self.topbar)
-        top.setContentsMargins(16, 10, 16, 10)
-        top.setSpacing(10)
+        top.setContentsMargins(18, 12, 18, 12)
+        top.setSpacing(12)
 
         self.lbl_time = QLabel("--:--")
-        self.lbl_time.setFont(QFont("", 16, 600))
+        self.lbl_time.setFont(QFont("", 20, 700))
 
         chip_bt = QPushButton("BT")
         chip_bt.setObjectName("IconChip")
+        chip_bt.setMinimumSize(QSize(60, 40))
         chip_wifi = QPushButton("Wi-Fi")
         chip_wifi.setObjectName("IconChip")
+        chip_wifi.setMinimumSize(QSize(70, 40))
         chip_lte = QPushButton("LTE")
         chip_lte.setObjectName("IconChip")
+        chip_lte.setMinimumSize(QSize(60, 40))
 
         self.lbl_vol = QLabel("VOL 45%")
-        self.lbl_vol.setStyleSheet("color: rgba(138,147,166,0.95); font-size: 14px;")
+        self.lbl_vol.setStyleSheet("color: rgba(138,147,166,0.95); font-size: 16px;")
 
         self.btn_theme = QPushButton("🌙")
         self.btn_theme.setObjectName("IconChip")
+        self.btn_theme.setMinimumSize(QSize(48, 40))
         self.btn_theme.clicked.connect(self.toggle_theme)
 
         top.addWidget(self.lbl_time)