/* Dark theme */
QWidget { font-size: 12px; color: #e5e7eb; }
QMainWindow { background: #0f172a; }
QToolBar { background: #111827; border-bottom: 1px solid #334155; padding: 4px; spacing: 6px; color: #e5e7eb; }
QGroupBox { margin-top: 12px; border: 1px solid #334155; border-radius: 6px; background: #111827; color: #e5e7eb; }
QGroupBox::title { subcontrol-origin: margin; left: 8px; padding: 0 4px; color: #cbd5e1; }
QLineEdit, QComboBox, QSpinBox { background: #0f172a; border: 1px solid #334155; border-radius: 4px; padding: 6px 8px; color: #e5e7eb; }
QLineEdit:read-only { background: #111827; color: #94a3b8; }
QComboBox::drop-down { border: none; }
QPushButton { background: #2563eb; color: #ffffff; border: none; border-radius: 6px; padding: 6px 12px; }
QPushButton:hover { background: #1d4ed8; }
QPushButton:disabled { background: #4b5563; }
QTabWidget::pane { border: 1px solid #334155; top: -1px; background: #0b1324; }
QTabBar::tab { padding: 6px 12px; border: 1px solid #334155; border-bottom: none; background: #0f172a; color: #e5e7eb; }
QTabBar::tab:selected { background: #111827; }
QHeaderView::section { background: #111827; padding: 6px; border: 1px solid #334155; color: #e5e7eb; }
QTableWidget { gridline-color: #334155; background: #0b1324; color: #e5e7eb; }
QScrollArea { background: transparent; border: none; color: #e5e7eb; }
QMenuBar { background: #111827; color: #e5e7eb; }
QMenuBar::item:selected { background: #1f2937; }
QMenu { background: #111827; color: #e5e7eb; border: 1px solid #334155; }
QMenu::item:selected { background: #1f2937; }
QStatusBar { background: #111827; border-top: 1px solid #334155; color: #e5e7eb; }