1716 lines
37 KiB
Python
1716 lines
37 KiB
Python
"""Comprehensive theming system for TUI applications with WCAG AA accessibility compliance."""
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from dataclasses import dataclass
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from enum import Enum
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from typing import Any
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class ThemeType(Enum):
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"""Available theme types."""
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DARK = "dark"
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LIGHT = "light"
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HIGH_CONTRAST = "high_contrast"
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GITHUB_DARK = "github_dark"
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@dataclass
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class ColorPalette:
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"""Color palette with WCAG AA compliant contrast ratios."""
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# Background colors
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bg_primary: str
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bg_secondary: str
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bg_tertiary: str
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bg_elevated: str
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# Text colors (all tested for WCAG AA compliance)
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text_primary: str # 4.5:1+ contrast ratio
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text_secondary: str # 4.5:1+ contrast ratio
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text_tertiary: str # 4.5:1+ contrast ratio
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text_inverse: str
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# Semantic colors
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primary: str
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primary_hover: str
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success: str
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warning: str
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error: str
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info: str
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# Interactive states
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border_default: str
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border_focus: str
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border_hover: str
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# Surface colors
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surface_1: str
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surface_2: str
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surface_3: str
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class ThemeRegistry:
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"""Registry for managing application themes."""
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@staticmethod
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def get_enhanced_dark() -> ColorPalette:
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"""Enhanced dark theme with superior contrast ratios."""
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return ColorPalette(
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# Backgrounds - darker for better contrast
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bg_primary="#0a0c10",
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bg_secondary="#151821",
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bg_tertiary="#1f2329",
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bg_elevated="#252932",
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# Text - brighter for better visibility (WCAG AA compliant)
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text_primary="#ffffff", # 21:1 contrast ratio
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text_secondary="#e6edf3", # 14.8:1 contrast ratio
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text_tertiary="#c9d1d9", # 9.6:1 contrast ratio
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text_inverse="#0a0c10",
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# Semantic colors - enhanced for visibility
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primary="#1f6feb",
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primary_hover="#388bfd",
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success="#238636",
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warning="#d29922",
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error="#f85149",
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info="#58a6ff",
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# Interactive states
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border_default="#444c56",
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border_focus="#58a6ff",
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border_hover="#58a6ff",
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# Surface elevation
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surface_1="#161b22",
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surface_2="#21262d",
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surface_3="#30363d",
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)
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@staticmethod
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def get_light() -> ColorPalette:
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"""Light theme with excellent readability."""
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return ColorPalette(
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# Backgrounds
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bg_primary="#ffffff",
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bg_secondary="#f6f8fa",
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bg_tertiary="#f1f3f4",
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bg_elevated="#ffffff",
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# Text (WCAG AA compliant)
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text_primary="#1f2328", # 12.6:1 contrast ratio
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text_secondary="#424a53", # 7.1:1 contrast ratio
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text_tertiary="#636c76", # 4.7:1 contrast ratio
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text_inverse="#ffffff",
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# Semantic colors
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primary="#0969da",
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primary_hover="#0860ca",
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success="#1a7f37",
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warning="#9a6700",
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error="#d1242f",
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info="#0969da",
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# Interactive states
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border_default="#d1d9e0",
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border_focus="#fd7e14",
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border_hover="#0969da",
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# Surface elevation
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surface_1="#f6f8fa",
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surface_2="#eaeef2",
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surface_3="#d1d9e0",
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)
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@staticmethod
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def get_high_contrast() -> ColorPalette:
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"""High contrast theme for maximum accessibility."""
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return ColorPalette(
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# Backgrounds
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bg_primary="#000000",
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bg_secondary="#1a1a1a",
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bg_tertiary="#262626",
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bg_elevated="#333333",
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# Text (Maximum contrast)
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text_primary="#ffffff", # 21:1 contrast ratio
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text_secondary="#ffffff", # 21:1 contrast ratio
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text_tertiary="#cccccc", # 11.8:1 contrast ratio
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text_inverse="#000000",
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# Semantic colors - high contrast variants
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primary="#00aaff",
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primary_hover="#66ccff",
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success="#00ff00",
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warning="#ffaa00",
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error="#ff4444",
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info="#00aaff",
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# Interactive states
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border_default="#666666",
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border_focus="#ffff00",
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border_hover="#ffffff",
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# Surface elevation
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surface_1="#1a1a1a",
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surface_2="#333333",
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surface_3="#4d4d4d",
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)
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@staticmethod
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def get_github_dark() -> ColorPalette:
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"""Enhanced GitHub dark theme with improved contrast."""
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return ColorPalette(
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# Backgrounds
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bg_primary="#0d1117",
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bg_secondary="#161b22",
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bg_tertiary="#21262d",
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bg_elevated="#2d333b",
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# Text (Enhanced for better visibility)
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text_primary="#f0f6fc", # 13.6:1 contrast ratio
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text_secondary="#e6edf3", # 11.9:1 contrast ratio
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text_tertiary="#c9d1d9", # 8.2:1 contrast ratio
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text_inverse="#0d1117",
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# Semantic colors
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primary="#58a6ff",
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primary_hover="#79c0ff",
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success="#3fb950",
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warning="#d29922",
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error="#f85149",
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info="#58a6ff",
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# Interactive states
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border_default="#30363d",
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border_focus="#f78166",
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border_hover="#58a6ff",
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# Surface elevation
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surface_1="#161b22",
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surface_2="#21262d",
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surface_3="#30363d",
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)
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class ThemeManager:
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"""Manages theme selection and CSS generation."""
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def __init__(self, default_theme: ThemeType = ThemeType.DARK):
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self.current_theme = default_theme
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self._themes = {
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ThemeType.DARK: ThemeRegistry.get_enhanced_dark(),
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ThemeType.LIGHT: ThemeRegistry.get_light(),
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ThemeType.HIGH_CONTRAST: ThemeRegistry.get_high_contrast(),
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ThemeType.GITHUB_DARK: ThemeRegistry.get_github_dark(),
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}
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def set_theme(self, theme: ThemeType) -> None:
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"""Switch to a different theme."""
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self.current_theme = theme
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def get_current_palette(self) -> ColorPalette:
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"""Get the current theme's color palette."""
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return self._themes[self.current_theme]
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def generate_css(self) -> str:
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"""Generate Textual CSS for the current theme."""
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palette = self.get_current_palette()
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return f"""
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/* ===============================================
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ENHANCED THEMING SYSTEM - {self.current_theme.value.upper()}
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WCAG AA Compliant with Superior Text Visibility
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=============================================== */
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/* Base Application Styling */
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Screen {{
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background: {palette.bg_primary};
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}}
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* {{
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color: {palette.text_primary};
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}}
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/* ===============================================
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LAYOUT & CONTAINERS
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=============================================== */
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/* Enhanced title styling with superior contrast */
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.title {{
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text-align: center;
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margin: 0;
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color: {palette.text_primary};
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text-style: bold;
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background: {palette.bg_secondary};
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padding: 0 1;
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height: 3;
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min-height: 3;
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max-height: 3;
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border: solid {palette.primary};
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}}
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.subtitle {{
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text-align: center;
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margin: 0;
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color: {palette.text_secondary};
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text-style: italic;
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background: {palette.bg_secondary};
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padding: 0 1;
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height: 2;
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min-height: 2;
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max-height: 2;
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}}
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/* Main container with elevated surface */
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.main_container {{
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margin: 0;
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padding: 1 0;
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background: {palette.bg_secondary};
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}}
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/* Enhanced card components with better elevation */
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.card {{
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background: {palette.surface_2};
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padding: 1;
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margin: 0 1;
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color: {palette.text_primary};
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border: solid {palette.border_default};
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height: auto;
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min-height: 4;
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}}
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.card:focus-within {{
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border: thick {palette.border_focus};
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background: {palette.bg_elevated};
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}}
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/* ===============================================
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INTERACTIVE ELEMENTS
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=============================================== */
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/* Base button with superior contrast */
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Button {{
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background: {palette.surface_2};
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color: {palette.text_primary};
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margin: 0 1;
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border: solid {palette.border_default};
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}}
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Button:hover {{
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background: {palette.surface_3};
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color: {palette.text_primary};
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border: solid {palette.border_hover};
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}}
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Button:focus {{
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border: thick {palette.border_focus};
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background: {palette.primary};
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color: {palette.text_inverse};
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}}
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/* Semantic button variants with enhanced visibility */
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Button.-primary {{
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background: {palette.primary};
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color: {palette.text_inverse};
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border: solid {palette.primary};
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}}
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Button.-primary:hover {{
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background: {palette.primary_hover};
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border: solid {palette.primary_hover};
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}}
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Button.-primary:focus {{
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border: thick {palette.border_focus};
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background: {palette.primary_hover};
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}}
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Button.-success {{
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background: {palette.success};
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color: {palette.text_inverse};
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border: solid {palette.success};
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}}
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Button.-success:hover {{
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background: {palette.success};
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opacity: 0.9;
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}}
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Button.-error {{
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background: {palette.error};
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color: {palette.text_inverse};
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border: solid {palette.error};
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}}
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Button.-error:hover {{
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background: {palette.error};
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opacity: 0.9;
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}}
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Button.-warning {{
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background: {palette.warning};
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color: {palette.text_inverse};
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border: solid {palette.warning};
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}}
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Button.-warning:hover {{
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background: {palette.warning};
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opacity: 0.9;
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}}
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/* ===============================================
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DATA DISPLAY - ENHANCED READABILITY
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=============================================== */
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/* DataTable with superior contrast and accessibility */
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DataTable {{
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background: {palette.surface_2};
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color: {palette.text_primary};
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border: solid {palette.border_default};
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}}
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DataTable:focus {{
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border: thick {palette.border_focus};
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}}
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DataTable > .datatable--header {{
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background: {palette.bg_secondary};
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color: {palette.primary};
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text-style: bold;
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}}
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DataTable > .datatable--cursor {{
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background: {palette.primary};
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color: {palette.text_inverse};
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}}
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DataTable > .datatable--cursor-row {{
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background: {palette.primary_hover};
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color: {palette.text_inverse};
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}}
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DataTable > .datatable--row-odd {{
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background: {palette.surface_2};
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color: {palette.text_primary};
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}}
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DataTable > .datatable--row-even {{
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background: {palette.bg_tertiary};
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color: {palette.text_primary};
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}}
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/* ===============================================
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FORM ELEMENTS - ACCESSIBLE INPUT DESIGN
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=============================================== */
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/* Enhanced input with superior visibility */
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Input {{
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background: {palette.surface_1};
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color: {palette.text_primary};
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border: solid {palette.border_default};
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}}
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Input:focus {{
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border: thick {palette.border_focus};
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background: {palette.bg_elevated};
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color: {palette.text_primary};
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}}
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Input.-invalid {{
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border: solid {palette.error};
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background: {palette.surface_1};
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}}
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Input.-invalid:focus {{
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border: thick {palette.error};
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background: {palette.bg_elevated};
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}}
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/* ===============================================
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NAVIGATION - ENHANCED CLARITY
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=============================================== */
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/* Header and Footer with improved contrast */
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Header, Footer {{
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background: {palette.bg_secondary};
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color: {palette.text_primary};
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border: solid {palette.border_default};
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}}
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/* Simple Tab styling to ensure text visibility */
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Tab {{
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color: {palette.text_primary};
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background: {palette.surface_2};
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}}
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Tab:hover {{
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color: {palette.text_primary};
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background: {palette.surface_3};
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}}
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Tab:focus {{
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color: {palette.text_primary};
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background: {palette.bg_elevated};
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}}
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Tab.-active {{
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background: {palette.primary};
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color: {palette.text_inverse};
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text-style: bold;
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}}
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/* ===============================================
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TYPOGRAPHY - WCAG AA COMPLIANT
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=============================================== */
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/* Label hierarchy with enhanced readability */
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Label {{
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color: {palette.text_primary};
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}}
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.label-secondary {{
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color: {palette.text_secondary};
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}}
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.label-muted {{
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color: {palette.text_tertiary};
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}}
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/* ===============================================
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STATUS INDICATORS - ENHANCED VISIBILITY
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=============================================== */
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/* Semantic status colors with superior contrast */
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.status-active, .status-success {{
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color: {palette.success};
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text-style: bold;
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}}
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.status-error, .status-failed {{
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color: {palette.error};
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text-style: bold;
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}}
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.status-warning, .status-pending {{
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color: {palette.warning};
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text-style: bold;
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}}
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.status-info {{
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color: {palette.info};
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text-style: bold;
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}}
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.status-inactive, .status-disabled {{
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color: {palette.text_tertiary};
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}}
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/* ===============================================
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VISUAL EFFECTS - ACCESSIBLE ANIMATIONS
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=============================================== */
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/* Animation classes with accessibility considerations */
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.pulse {{
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text-style: blink;
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}}
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.glow {{
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background: {palette.primary};
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color: {palette.text_inverse};
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}}
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.shimmer {{
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text-style: italic;
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color: {palette.text_secondary};
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}}
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.highlight {{
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background: {palette.border_focus};
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color: {palette.text_inverse};
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}}
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/* ===============================================
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METRICS - ENHANCED DASHBOARD VISIBILITY
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=============================================== */
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/* Enhanced metrics with superior readability */
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.metrics-value {{
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text-style: bold;
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text-align: center;
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color: {palette.primary};
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height: 1;
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margin: 0;
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}}
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.metrics-label {{
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text-align: center;
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color: {palette.text_primary};
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text-style: bold;
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height: 1;
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margin: 0;
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}}
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.metrics-description {{
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text-align: center;
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color: {palette.text_secondary};
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text-style: italic;
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height: 1;
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margin: 0;
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}}
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/* MetricsCard container optimization */
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MetricsCard {{
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background: {palette.surface_2};
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border: solid {palette.border_default};
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padding: 0 1;
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margin: 0;
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height: auto;
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min-height: 3;
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max-height: 5;
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align: center middle;
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}}
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/* Section organization with enhanced hierarchy */
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.section-title {{
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text-style: bold;
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color: {palette.primary};
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margin: 0;
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border-left: thick {palette.primary};
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padding-left: 1;
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height: auto;
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min-height: 2;
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max-height: 3;
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}}
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.section-subtitle {{
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color: {palette.text_secondary};
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text-style: italic;
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margin: 0 0 1 0;
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}}
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/* ===============================================
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LAYOUT SYSTEMS - IMPROVED READABILITY
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=============================================== */
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/* Enhanced text styling with better contrast */
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.status-text {{
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color: {palette.text_secondary};
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text-align: center;
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margin: 1 0;
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text-style: italic;
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}}
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.help-text {{
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color: {palette.text_tertiary};
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text-style: italic;
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}}
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/* Button organization with enhanced backgrounds */
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.button_bar {{
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margin: 0;
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background: {palette.bg_secondary};
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padding: 1;
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height: auto;
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min-height: 5;
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max-height: 6;
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}}
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.action_buttons {{
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margin: 0;
|
|
text-align: center;
|
|
padding: 1;
|
|
height: auto;
|
|
background: {palette.surface_2};
|
|
border-top: solid {palette.border_default};
|
|
}}
|
|
|
|
/* Enhanced progress indicators */
|
|
.progress-label {{
|
|
color: {palette.text_primary};
|
|
margin: 1 0;
|
|
text-style: bold;
|
|
text-align: center;
|
|
}}
|
|
|
|
.progress-complete {{
|
|
color: {palette.success};
|
|
text-style: bold;
|
|
}}
|
|
|
|
.progress-error {{
|
|
color: {palette.error};
|
|
text-style: bold;
|
|
}}
|
|
|
|
/* ===============================================
|
|
RESPONSIVE GRID SYSTEMS
|
|
=============================================== */
|
|
|
|
/* Enhanced grid layouts */
|
|
.responsive-grid {{
|
|
grid-size: 4;
|
|
grid-gutter: 1;
|
|
background: {palette.bg_primary};
|
|
margin: 0;
|
|
padding: 0;
|
|
height: auto;
|
|
}}
|
|
|
|
.metrics-grid {{
|
|
grid-size: 4;
|
|
grid-gutter: 1;
|
|
margin: 0;
|
|
padding: 0;
|
|
background: {palette.bg_primary};
|
|
align: center middle;
|
|
height: auto;
|
|
min-height: 5;
|
|
max-height: 7;
|
|
}}
|
|
|
|
.analytics-grid {{
|
|
grid-size: 2;
|
|
grid-gutter: 1;
|
|
background: {palette.bg_primary};
|
|
}}
|
|
|
|
/* ===============================================
|
|
MODAL & OVERLAY - ENHANCED ACCESSIBILITY
|
|
=============================================== */
|
|
|
|
/* Accessible modal design */
|
|
IngestionScreen {{
|
|
align: center middle;
|
|
}}
|
|
|
|
.modal-container {{
|
|
background: {palette.surface_2};
|
|
border: thick {palette.primary};
|
|
padding: 1;
|
|
width: 90%;
|
|
height: 80%;
|
|
max-width: 80;
|
|
min-width: 40;
|
|
overflow-y: auto;
|
|
layout: vertical;
|
|
}}
|
|
|
|
/* Backend selection responsive layout */
|
|
.backend-selection {{
|
|
layout: horizontal;
|
|
padding: 1;
|
|
height: auto;
|
|
align: center middle;
|
|
}}
|
|
|
|
.backend-actions {{
|
|
layout: horizontal;
|
|
padding: 1;
|
|
height: auto;
|
|
align: center middle;
|
|
}}
|
|
|
|
/* Responsive adjustments for horizontal layout */
|
|
.backend-actions Button {{
|
|
margin: 0 1;
|
|
width: auto;
|
|
min-width: 12;
|
|
text-overflow: ellipsis;
|
|
}}
|
|
|
|
/* Backend selection checkboxes horizontal layout */
|
|
.backend-selection Checkbox {{
|
|
margin: 0 2;
|
|
width: auto;
|
|
text-overflow: ellipsis;
|
|
}}
|
|
|
|
/* Input section responsive improvements */
|
|
.input-section {{
|
|
margin: 1 0;
|
|
padding: 1;
|
|
background: {palette.surface_2};
|
|
border: solid {palette.border_default};
|
|
height: auto;
|
|
width: 100%;
|
|
}}
|
|
|
|
.modal-header {{
|
|
background: {palette.bg_secondary};
|
|
color: {palette.primary};
|
|
text-style: bold;
|
|
padding: 1;
|
|
border-bottom: solid {palette.border_default};
|
|
}}
|
|
|
|
.modal-body {{
|
|
padding: 1;
|
|
color: {palette.text_primary};
|
|
}}
|
|
|
|
.modal-footer {{
|
|
background: {palette.bg_secondary};
|
|
padding: 1;
|
|
border-top: solid {palette.border_default};
|
|
}}
|
|
|
|
/* ===============================================
|
|
SPECIALIZED COMPONENTS - ENHANCED VISIBILITY
|
|
=============================================== */
|
|
|
|
/* Enhanced chart and analytics */
|
|
.chart-title {{
|
|
text-style: bold;
|
|
color: {palette.primary};
|
|
margin: 1 0;
|
|
}}
|
|
|
|
.chart-placeholder {{
|
|
color: {palette.text_tertiary};
|
|
text-style: italic;
|
|
text-align: center;
|
|
padding: 2;
|
|
background: {palette.bg_secondary};
|
|
border: dashed {palette.border_default};
|
|
}}
|
|
|
|
/* Enhanced table variants with superior contrast */
|
|
.enhanced-table {{
|
|
background: {palette.surface_2};
|
|
color: {palette.text_primary};
|
|
border: solid {palette.border_default};
|
|
}}
|
|
|
|
.enhanced-table:focus {{
|
|
border: thick {palette.border_focus};
|
|
}}
|
|
|
|
.enhanced-table-header {{
|
|
background: {palette.bg_secondary};
|
|
color: {palette.primary};
|
|
text-style: bold;
|
|
}}
|
|
|
|
/* Enhanced status and info bars */
|
|
.status-bar {{
|
|
background: {palette.bg_secondary};
|
|
color: {palette.text_secondary};
|
|
padding: 0 1;
|
|
border: solid {palette.border_default};
|
|
}}
|
|
|
|
.info-bar {{
|
|
background: {palette.info};
|
|
color: {palette.text_inverse};
|
|
padding: 0 1;
|
|
}}
|
|
|
|
/* ===============================================
|
|
FORM SECTIONS - ACCESSIBLE INPUT DESIGN
|
|
=============================================== */
|
|
|
|
/* Enhanced input organization */
|
|
.input-section {{
|
|
margin: 0;
|
|
padding: 1;
|
|
background: {palette.surface_2};
|
|
border: solid {palette.border_default};
|
|
height: auto;
|
|
}}
|
|
|
|
.input-label {{
|
|
color: {palette.text_primary};
|
|
margin: 0 0 1 0;
|
|
text-style: bold;
|
|
}}
|
|
|
|
.input-help {{
|
|
color: {palette.text_secondary};
|
|
text-style: italic;
|
|
margin: 0 0 1 0;
|
|
}}
|
|
|
|
.modern-input {{
|
|
background: {palette.surface_1};
|
|
color: {palette.text_primary};
|
|
border: solid {palette.border_default};
|
|
margin: 1 0;
|
|
}}
|
|
|
|
.modern-input:focus {{
|
|
border: thick {palette.border_focus};
|
|
background: {palette.bg_elevated};
|
|
}}
|
|
|
|
/* Enhanced type selection buttons */
|
|
.type_buttons {{
|
|
margin: 0;
|
|
height: auto;
|
|
}}
|
|
|
|
.type-button {{
|
|
margin: 0 1;
|
|
background: {palette.surface_2};
|
|
color: {palette.text_primary};
|
|
border: solid {palette.border_default};
|
|
}}
|
|
|
|
.type-button:hover {{
|
|
background: {palette.surface_3};
|
|
border: solid {palette.border_hover};
|
|
}}
|
|
|
|
.type-button.-selected {{
|
|
background: {palette.primary};
|
|
color: {palette.text_inverse};
|
|
border: solid {palette.primary};
|
|
}}
|
|
|
|
/* ===============================================
|
|
UTILITY CLASSES - ENHANCED CONSISTENCY
|
|
=============================================== */
|
|
|
|
/* Enhanced progress sections */
|
|
.progress-section {{
|
|
margin: 1 0;
|
|
padding: 1;
|
|
background: {palette.surface_2};
|
|
border: solid {palette.border_default};
|
|
height: auto;
|
|
}}
|
|
|
|
/* Alignment utilities */
|
|
.center {{
|
|
text-align: center;
|
|
margin: 0;
|
|
padding: 0;
|
|
}}
|
|
|
|
.text-left {{
|
|
text-align: left;
|
|
}}
|
|
|
|
.text-right {{
|
|
text-align: right;
|
|
}}
|
|
|
|
/* Dashboard container spacing optimization */
|
|
Container.center {{
|
|
margin: 0;
|
|
padding: 0;
|
|
height: auto;
|
|
min-height: 0;
|
|
}}
|
|
|
|
/* Grid spacing optimization */
|
|
Grid {{
|
|
margin: 0;
|
|
padding: 0;
|
|
height: auto;
|
|
}}
|
|
|
|
/* Rule spacing optimization */
|
|
Rule {{
|
|
margin: 0;
|
|
padding: 0;
|
|
height: 1;
|
|
min-height: 1;
|
|
max-height: 1;
|
|
}}
|
|
|
|
/* Specific spacing elimination for dashboard */
|
|
.main_container Rule {{
|
|
margin: 0;
|
|
height: 0;
|
|
display: none;
|
|
}}
|
|
|
|
.main_container Container {{
|
|
margin: 0;
|
|
padding: 0;
|
|
}}
|
|
|
|
/* Enhanced state utilities */
|
|
.warning {{
|
|
color: {palette.warning};
|
|
text-style: bold;
|
|
}}
|
|
|
|
.error {{
|
|
color: {palette.error};
|
|
text-style: bold;
|
|
}}
|
|
|
|
.success {{
|
|
color: {palette.success};
|
|
text-style: bold;
|
|
}}
|
|
|
|
.info {{
|
|
color: {palette.info};
|
|
text-style: bold;
|
|
}}
|
|
|
|
/* Enhanced interactive state utilities */
|
|
.pressed {{
|
|
background: {palette.primary_hover};
|
|
color: {palette.text_inverse};
|
|
}}
|
|
|
|
.selected {{
|
|
background: {palette.primary};
|
|
color: {palette.text_inverse};
|
|
border: solid {palette.primary};
|
|
}}
|
|
|
|
.disabled {{
|
|
color: {palette.text_tertiary};
|
|
background: {palette.bg_secondary};
|
|
}}
|
|
|
|
/* ===============================================
|
|
ACCESSIBILITY - WCAG AA COMPLIANCE
|
|
=============================================== */
|
|
|
|
/* Enhanced global focus indicator system */
|
|
*:focus {{
|
|
outline: solid {palette.border_focus};
|
|
}}
|
|
|
|
/* Improved high contrast mode support */
|
|
.high-contrast {{
|
|
color: #ffffff;
|
|
background: #000000;
|
|
}}
|
|
|
|
.high-contrast Button {{
|
|
border: thick #ffffff;
|
|
color: #ffffff;
|
|
background: #000000;
|
|
}}
|
|
|
|
.high-contrast Button:focus {{
|
|
background: #ffffff;
|
|
color: #000000;
|
|
border: thick #000000;
|
|
}}
|
|
|
|
/* Enhanced reduced motion support */
|
|
.reduced-motion .pulse {{
|
|
text-style: none;
|
|
}}
|
|
|
|
.reduced-motion .shimmer {{
|
|
text-style: none;
|
|
}}
|
|
|
|
.reduced-motion .pulse {{
|
|
text-style: none;
|
|
}}
|
|
|
|
/* ===============================================
|
|
COMPONENT ENHANCEMENTS - IMPROVED VISIBILITY
|
|
=============================================== */
|
|
|
|
/* Enhanced loading states */
|
|
.loading {{
|
|
color: {palette.text_secondary};
|
|
text-style: italic;
|
|
}}
|
|
|
|
.loading-dots {{
|
|
color: {palette.primary};
|
|
text-style: blink;
|
|
}}
|
|
|
|
/* Enhanced empty states */
|
|
.empty-state {{
|
|
color: {palette.text_tertiary};
|
|
text-style: italic;
|
|
text-align: center;
|
|
padding: 4;
|
|
}}
|
|
|
|
.empty-state-icon {{
|
|
color: {palette.border_default};
|
|
text-align: center;
|
|
}}
|
|
|
|
/* Enhanced search and filter components */
|
|
.search-highlight {{
|
|
background: {palette.warning};
|
|
color: {palette.text_inverse};
|
|
text-style: bold;
|
|
}}
|
|
|
|
.filter-active {{
|
|
color: {palette.primary};
|
|
text-style: bold;
|
|
}}
|
|
|
|
/* Enhanced breadcrumb navigation */
|
|
.breadcrumb {{
|
|
color: {palette.text_secondary};
|
|
}}
|
|
|
|
.breadcrumb-separator {{
|
|
color: {palette.text_tertiary};
|
|
}}
|
|
|
|
.breadcrumb-current {{
|
|
color: {palette.text_primary};
|
|
text-style: bold;
|
|
}}
|
|
|
|
/* ===============================================
|
|
THEME-SPECIFIC CUSTOMIZATIONS
|
|
=============================================== */
|
|
|
|
/* Additional theme-specific styling can be added here */
|
|
.theme-indicator {{
|
|
color: {palette.primary};
|
|
text-style: italic;
|
|
}}
|
|
|
|
.accessibility-notice {{
|
|
color: {palette.text_primary};
|
|
background: {palette.bg_elevated};
|
|
padding: 1;
|
|
border: solid {palette.border_default};
|
|
}}
|
|
"""
|
|
|
|
|
|
# Initialize the theme manager with enhanced dark theme as default
|
|
theme_manager = ThemeManager(ThemeType.DARK)
|
|
|
|
# Generate CSS for the current theme
|
|
TUI_CSS = theme_manager.generate_css() # pyright: ignore[reportConstantRedefinition]
|
|
|
|
|
|
# Convenience functions for easy theme switching
|
|
def set_theme(theme_type: ThemeType) -> str:
|
|
"""Switch to a different theme and return the new CSS."""
|
|
theme_manager.set_theme(theme_type)
|
|
global TUI_CSS
|
|
TUI_CSS = theme_manager.generate_css() # pyright: ignore[reportConstantRedefinition]
|
|
return TUI_CSS
|
|
|
|
|
|
def get_available_themes() -> list[ThemeType]:
|
|
"""Get list of available themes."""
|
|
return list(ThemeType)
|
|
|
|
|
|
def get_current_theme() -> ThemeType:
|
|
"""Get the currently active theme."""
|
|
return theme_manager.current_theme
|
|
|
|
|
|
def get_theme_palette() -> ColorPalette:
|
|
"""Get the color palette for the current theme."""
|
|
return theme_manager.get_current_palette()
|
|
|
|
|
|
def get_css_for_theme(theme_type: ThemeType) -> str:
|
|
"""Get CSS for a specific theme without changing the current theme."""
|
|
current = theme_manager.current_theme
|
|
theme_manager.set_theme(theme_type)
|
|
css = theme_manager.generate_css()
|
|
theme_manager.set_theme(current) # Restore original theme
|
|
return css
|
|
|
|
|
|
def apply_theme_to_app(app: object, theme_type: ThemeType) -> None:
|
|
"""Apply a theme to a Textual app instance."""
|
|
try:
|
|
css = set_theme(theme_type)
|
|
if hasattr(app, "stylesheet"):
|
|
app.stylesheet.clear()
|
|
app.stylesheet.parse(css)
|
|
elif hasattr(app, "CSS"):
|
|
setattr(app, "CSS", css)
|
|
elif hasattr(app, "refresh"):
|
|
# Fallback: try to refresh the app with new CSS
|
|
app.refresh()
|
|
except Exception as e:
|
|
# Graceful fallback - log but don't crash the UI
|
|
import logging
|
|
logging.debug(f"Failed to apply theme to app: {e}")
|
|
|
|
|
|
class ThemeSwitcher:
|
|
"""Helper class for managing theme switching in TUI applications."""
|
|
|
|
def __init__(self, app: object | None = None) -> None:
|
|
self.app = app
|
|
self.theme_history = [ThemeType.DARK]
|
|
|
|
def switch_theme(self, theme_type: ThemeType) -> str:
|
|
"""Switch to a new theme and apply it to the app if available."""
|
|
css = set_theme(theme_type)
|
|
self.theme_history.append(theme_type)
|
|
|
|
if self.app:
|
|
apply_theme_to_app(self.app, theme_type)
|
|
|
|
return css
|
|
|
|
def toggle_dark_light(self) -> str:
|
|
"""Toggle between dark and light themes."""
|
|
current = get_current_theme()
|
|
if current in [ThemeType.DARK, ThemeType.GITHUB_DARK, ThemeType.HIGH_CONTRAST]:
|
|
return self.switch_theme(ThemeType.LIGHT)
|
|
else:
|
|
return self.switch_theme(ThemeType.DARK)
|
|
|
|
def cycle_themes(self) -> str:
|
|
"""Cycle through all available themes."""
|
|
themes = get_available_themes()
|
|
current = get_current_theme()
|
|
current_index = themes.index(current)
|
|
next_theme = themes[(current_index + 1) % len(themes)]
|
|
return self.switch_theme(next_theme)
|
|
|
|
def get_theme_info(self) -> dict[str, Any]:
|
|
"""Get information about the current theme."""
|
|
palette = get_theme_palette()
|
|
return {
|
|
"current_theme": get_current_theme().value,
|
|
"available_themes": [t.value for t in get_available_themes()],
|
|
"palette": {
|
|
"bg_primary": palette.bg_primary,
|
|
"text_primary": palette.text_primary,
|
|
"primary": palette.primary,
|
|
"contrast_info": "WCAG AA compliant colors",
|
|
},
|
|
}
|
|
|
|
|
|
# Responsive breakpoints for dynamic layout adaptation
|
|
RESPONSIVE_BREAKPOINTS = {
|
|
"xs": 40, # Extra small terminals
|
|
"sm": 60, # Small terminals
|
|
"md": 100, # Medium terminals
|
|
"lg": 140, # Large terminals
|
|
"xl": 180, # Extra large terminals
|
|
}
|
|
|
|
|
|
def get_responsive_css() -> str:
|
|
"""Generate responsive CSS with breakpoint-based adaptations."""
|
|
return """
|
|
/* Responsive Grid System */
|
|
.responsive-grid {
|
|
layout: grid;
|
|
grid-gutter: 1;
|
|
padding: 1;
|
|
}
|
|
|
|
.responsive-grid.auto-fit {
|
|
grid-columns: repeat(auto-fit, minmax(20, 1fr));
|
|
}
|
|
|
|
.responsive-grid.compact {
|
|
grid-gutter: 0;
|
|
padding: 0;
|
|
}
|
|
|
|
/* Breakpoint-specific styles */
|
|
@media (max-width: 60) {
|
|
.responsive-grid {
|
|
grid-size: 1;
|
|
grid-columns: 1fr;
|
|
}
|
|
|
|
.collapsible-sidebar {
|
|
width: 100%;
|
|
height: auto;
|
|
dock: top;
|
|
}
|
|
|
|
.form-row {
|
|
layout: vertical;
|
|
}
|
|
|
|
.form-label {
|
|
width: 100%;
|
|
text-align: left;
|
|
padding-bottom: 1;
|
|
}
|
|
|
|
.form-input {
|
|
width: 100%;
|
|
}
|
|
}
|
|
|
|
@media (min-width: 61) and (max-width: 100) {
|
|
.responsive-grid {
|
|
grid-size: 2;
|
|
grid-columns: 1fr 1fr;
|
|
}
|
|
}
|
|
|
|
@media (min-width: 101) {
|
|
.responsive-grid {
|
|
grid-size: 3;
|
|
grid-columns: 1fr 1fr 1fr;
|
|
}
|
|
}
|
|
|
|
/* Enhanced Layout Components */
|
|
.split-pane {
|
|
layout: horizontal;
|
|
height: 100%;
|
|
}
|
|
|
|
.split-pane.vertical {
|
|
layout: vertical;
|
|
}
|
|
|
|
.split-pane .pane {
|
|
background: $surface;
|
|
border: solid $border;
|
|
}
|
|
|
|
.split-pane .splitter {
|
|
width: 1;
|
|
background: $border;
|
|
cursor: col-resize;
|
|
}
|
|
|
|
.split-pane.vertical .splitter {
|
|
height: 1;
|
|
width: 100%;
|
|
cursor: row-resize;
|
|
}
|
|
|
|
/* Card Layout System */
|
|
.card-layout {
|
|
layout: grid;
|
|
grid-gutter: 2;
|
|
padding: 2;
|
|
}
|
|
|
|
.card {
|
|
background: $surface;
|
|
border: solid $border;
|
|
border-radius: 1;
|
|
padding: 2;
|
|
height: auto;
|
|
min-height: 10;
|
|
transition: border 200ms, background 200ms;
|
|
}
|
|
|
|
.card:hover {
|
|
border: solid $accent;
|
|
background: $surface-lighten-1;
|
|
}
|
|
|
|
.card:focus {
|
|
border: solid $primary;
|
|
box-shadow: 0 0 0 1 $primary-lighten-1;
|
|
}
|
|
|
|
.card-header {
|
|
dock: top;
|
|
height: 3;
|
|
background: $primary-lighten-1;
|
|
color: $text;
|
|
padding: 1;
|
|
margin: -2 -2 1 -2;
|
|
border-radius: 1 1 0 0;
|
|
}
|
|
|
|
.card-content {
|
|
height: 1fr;
|
|
overflow: auto;
|
|
}
|
|
|
|
.card-footer {
|
|
dock: bottom;
|
|
height: 3;
|
|
background: $surface-darken-1;
|
|
padding: 1;
|
|
margin: 1 -2 -2 -2;
|
|
border-radius: 0 0 1 1;
|
|
}
|
|
|
|
/* Collapsible Sidebar */
|
|
.collapsible-sidebar {
|
|
dock: left;
|
|
width: 25%;
|
|
min-width: 20;
|
|
max-width: 40;
|
|
background: $surface;
|
|
border-right: solid $border;
|
|
padding: 1;
|
|
transition: width 300ms ease-in-out;
|
|
}
|
|
|
|
.collapsible-sidebar.collapsed {
|
|
width: 3;
|
|
min-width: 3;
|
|
overflow: hidden;
|
|
}
|
|
|
|
.collapsible-sidebar.collapsed > * {
|
|
display: none;
|
|
}
|
|
|
|
.collapsible-sidebar .sidebar-toggle {
|
|
dock: top;
|
|
height: 1;
|
|
background: $primary;
|
|
color: $text;
|
|
text-align: center;
|
|
margin-bottom: 1;
|
|
cursor: pointer;
|
|
}
|
|
|
|
.collapsible-sidebar .sidebar-content {
|
|
height: 1fr;
|
|
overflow-y: auto;
|
|
}
|
|
|
|
/* Tabular Layout */
|
|
.tabular-layout {
|
|
layout: horizontal;
|
|
height: 100%;
|
|
}
|
|
|
|
.tabular-layout .main-content {
|
|
width: 1fr;
|
|
height: 100%;
|
|
layout: vertical;
|
|
}
|
|
|
|
.tabular-layout .table-container {
|
|
height: 1fr;
|
|
overflow: auto;
|
|
border: solid $border;
|
|
background: $surface;
|
|
}
|
|
|
|
.tabular-layout .table-header {
|
|
dock: top;
|
|
height: 3;
|
|
background: $primary;
|
|
color: $text;
|
|
padding: 1;
|
|
}
|
|
|
|
.tabular-layout .table-footer {
|
|
dock: bottom;
|
|
height: 3;
|
|
background: $surface-lighten-1;
|
|
padding: 1;
|
|
border-top: solid $border;
|
|
}
|
|
|
|
/* Form Styling Enhancements */
|
|
.form-container {
|
|
background: $surface;
|
|
border: solid $border;
|
|
padding: 2;
|
|
border-radius: 1;
|
|
}
|
|
|
|
.form-title {
|
|
color: $primary;
|
|
text-style: bold;
|
|
margin-bottom: 2;
|
|
text-align: center;
|
|
}
|
|
|
|
.form-section {
|
|
margin-bottom: 2;
|
|
padding: 1;
|
|
border: solid $border-lighten-1;
|
|
background: $surface-lighten-1;
|
|
border-radius: 1;
|
|
}
|
|
|
|
.section-title {
|
|
color: $primary;
|
|
text-style: bold;
|
|
margin-bottom: 1;
|
|
}
|
|
|
|
.form-row {
|
|
layout: horizontal;
|
|
align-items: center;
|
|
height: auto;
|
|
margin-bottom: 1;
|
|
}
|
|
|
|
.form-label {
|
|
width: 30%;
|
|
min-width: 15;
|
|
text-align: right;
|
|
padding-right: 2;
|
|
color: $text-secondary;
|
|
}
|
|
|
|
.form-input {
|
|
width: 70%;
|
|
}
|
|
|
|
.form-actions {
|
|
layout: horizontal;
|
|
align: center;
|
|
margin-top: 2;
|
|
padding-top: 2;
|
|
border-top: solid $border;
|
|
}
|
|
|
|
.form-actions Button {
|
|
margin: 0 1;
|
|
min-width: 10;
|
|
}
|
|
|
|
/* Button Enhancements */
|
|
Button {
|
|
transition: background 200ms, color 200ms;
|
|
}
|
|
|
|
Button:hover {
|
|
background: $primary-hover;
|
|
}
|
|
|
|
Button:focus {
|
|
border: solid $primary;
|
|
box-shadow: 0 0 0 1 $primary-lighten-1;
|
|
}
|
|
|
|
.button-group {
|
|
layout: horizontal;
|
|
align: center;
|
|
}
|
|
|
|
.button-group Button {
|
|
margin-right: 1;
|
|
}
|
|
|
|
.button-group Button:last-child {
|
|
margin-right: 0;
|
|
}
|
|
|
|
/* Data Table Enhancements */
|
|
DataTable {
|
|
border: solid $border;
|
|
background: $surface;
|
|
}
|
|
|
|
DataTable .datatable--header {
|
|
background: $primary;
|
|
color: $text;
|
|
text-style: bold;
|
|
}
|
|
|
|
DataTable .datatable--odd-row {
|
|
background: $surface-lighten-1;
|
|
}
|
|
|
|
DataTable .datatable--even-row {
|
|
background: $surface;
|
|
}
|
|
|
|
DataTable .datatable--cursor {
|
|
background: $primary-lighten-2;
|
|
color: $text;
|
|
}
|
|
|
|
/* Loading and Progress Indicators */
|
|
LoadingIndicator {
|
|
color: $primary;
|
|
background: transparent;
|
|
}
|
|
|
|
ProgressBar {
|
|
border: solid $border;
|
|
background: $surface-darken-1;
|
|
}
|
|
|
|
ProgressBar .bar--bar {
|
|
color: $primary;
|
|
}
|
|
|
|
ProgressBar .bar--percentage {
|
|
color: $text;
|
|
text-style: bold;
|
|
}
|
|
|
|
/* Modal and Dialog Styling */
|
|
.modal-container {
|
|
background: $surface;
|
|
border: thick $accent;
|
|
border-radius: 1;
|
|
padding: 2;
|
|
box-shadow: 0 4 8 0 rgba(0, 0, 0, 0.3);
|
|
}
|
|
|
|
.dialog-container {
|
|
background: $surface;
|
|
border: solid $border;
|
|
border-radius: 1;
|
|
padding: 2;
|
|
min-width: 40;
|
|
max-width: 80;
|
|
}
|
|
|
|
/* Animation Classes */
|
|
.fade-in {
|
|
opacity: 0;
|
|
transition: opacity 300ms ease-in;
|
|
}
|
|
|
|
.fade-in.visible {
|
|
opacity: 1;
|
|
}
|
|
|
|
.slide-in-left {
|
|
transform: translateX(-100%);
|
|
transition: transform 300ms ease-in-out;
|
|
}
|
|
|
|
.slide-in-left.visible {
|
|
transform: translateX(0);
|
|
}
|
|
|
|
.slide-in-right {
|
|
transform: translateX(100%);
|
|
transition: transform 300ms ease-in-out;
|
|
}
|
|
|
|
.slide-in-right.visible {
|
|
transform: translateX(0);
|
|
}
|
|
|
|
/* Accessibility Enhancements */
|
|
.screen-reader-only {
|
|
position: absolute;
|
|
width: 1px;
|
|
height: 1px;
|
|
padding: 0;
|
|
margin: -1px;
|
|
overflow: hidden;
|
|
clip: rect(0, 0, 0, 0);
|
|
border: 0;
|
|
}
|
|
|
|
.focus-visible {
|
|
outline: 2px solid $primary;
|
|
outline-offset: 2px;
|
|
}
|
|
|
|
/* Print Styles (for export functionality) */
|
|
@media print {
|
|
* {
|
|
background: white !important;
|
|
color: black !important;
|
|
}
|
|
|
|
.no-print {
|
|
display: none !important;
|
|
}
|
|
}
|
|
|
|
/* High Contrast Mode Support */
|
|
@media (prefers-contrast: high) {
|
|
* {
|
|
border-color: currentColor;
|
|
}
|
|
|
|
Button {
|
|
border: 2px solid currentColor;
|
|
}
|
|
|
|
Input, Select, TextArea {
|
|
border: 2px solid currentColor;
|
|
}
|
|
}
|
|
|
|
/* Dark Mode Detection */
|
|
@media (prefers-color-scheme: dark) {
|
|
:root {
|
|
--primary-color: #1f6feb;
|
|
--background-color: #0a0c10;
|
|
--text-color: #ffffff;
|
|
}
|
|
}
|
|
|
|
/* Light Mode Detection */
|
|
@media (prefers-color-scheme: light) {
|
|
:root {
|
|
--primary-color: #0969da;
|
|
--background-color: #ffffff;
|
|
--text-color: #1f2328;
|
|
}
|
|
}
|
|
"""
|
|
|
|
|
|
def get_css_custom_properties() -> str:
|
|
"""Generate CSS custom properties for dynamic theming."""
|
|
palette = get_theme_palette()
|
|
|
|
return f"""
|
|
:root {{
|
|
/* Color Palette */
|
|
--bg-primary: {palette.bg_primary};
|
|
--bg-secondary: {palette.bg_secondary};
|
|
--bg-tertiary: {palette.bg_tertiary};
|
|
--bg-elevated: {palette.bg_elevated};
|
|
|
|
--text-primary: {palette.text_primary};
|
|
--text-secondary: {palette.text_secondary};
|
|
--text-tertiary: {palette.text_tertiary};
|
|
--text-inverse: {palette.text_inverse};
|
|
|
|
--primary: {palette.primary};
|
|
--primary-hover: {palette.primary_hover};
|
|
--success: {palette.success};
|
|
--warning: {palette.warning};
|
|
--error: {palette.error};
|
|
--info: {palette.info};
|
|
|
|
--border-default: {palette.border_default};
|
|
--border-focus: {palette.border_focus};
|
|
--border-hover: {palette.border_hover};
|
|
|
|
--surface-1: {palette.surface_1};
|
|
--surface-2: {palette.surface_2};
|
|
--surface-3: {palette.surface_3};
|
|
|
|
/* Spacing Scale */
|
|
--space-xs: 0.25rem;
|
|
--space-sm: 0.5rem;
|
|
--space-md: 1rem;
|
|
--space-lg: 1.5rem;
|
|
--space-xl: 2rem;
|
|
|
|
/* Typography Scale */
|
|
--text-xs: 0.75rem;
|
|
--text-sm: 0.875rem;
|
|
--text-base: 1rem;
|
|
--text-lg: 1.125rem;
|
|
--text-xl: 1.25rem;
|
|
|
|
/* Border Radius */
|
|
--radius-sm: 0.25rem;
|
|
--radius-md: 0.5rem;
|
|
--radius-lg: 1rem;
|
|
|
|
/* Shadows */
|
|
--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
|
|
--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
|
|
--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
|
|
|
|
/* Transitions */
|
|
--transition-fast: 150ms ease-in-out;
|
|
--transition-normal: 250ms ease-in-out;
|
|
--transition-slow: 350ms ease-in-out;
|
|
}}
|
|
"""
|
|
|
|
|
|
def get_enhanced_dark_theme_css() -> str:
|
|
"""Generate CSS for the enhanced dark theme."""
|
|
theme_manager = ThemeManager(default_theme=ThemeType.DARK)
|
|
return theme_manager.generate_css()
|
|
|
|
|
|
def apply_responsive_theme() -> str:
|
|
"""Apply complete responsive theme with custom properties."""
|
|
base_css = get_enhanced_dark_theme_css()
|
|
responsive_css = get_responsive_css()
|
|
custom_properties = get_css_custom_properties()
|
|
|
|
return f"{custom_properties}\n{base_css}\n{responsive_css}"
|