feat: splash page

lib/common/theme/app_color.dart

@@ -1,5 +1,66 @@
 part of 'theme.dart';
 
 class AppColor {
-  // TODO: define color
+  // Primary Colors
+  static const Color primary = Color(0xFF36175e);
+  static const Color primaryLight = Color(0xFF5a2d85);
+  static const Color primaryDark = Color(0xFF1e0d35);
+
+  // Secondary Colors
+  static const Color secondary = Color(0xFF4CAF50);
+  static const Color secondaryLight = Color(0xFF81C784);
+  static const Color secondaryDark = Color(0xFF388E3C);
+
+  // Background Colors
+  static const Color background = Color(0xFFF5F5F5);
+  static const Color backgroundLight = Color(0xFFFFFFFF);
+  static const Color backgroundDark = Color(0xFF1A1A1A);
+  static const Color surface = Color(0xFFFFFFFF);
+  static const Color surfaceDark = Color(0xFF2D2D2D);
+
+  // Text Colors
+  static const Color textPrimary = Color(0xFF212121);
+  static const Color textSecondary = Color(0xFF757575);
+  static const Color textLight = Color(0xFFBDBDBD);
+  static const Color textWhite = Color(0xFFFFFFFF);
+
+  // Status Colors
+  static const Color success = Color(0xFF4CAF50);
+  static const Color error = Color(0xFFE53E3E);
+  static const Color warning = Color(0xFFFF9800);
+  static const Color info = Color(0xFF2196F3);
+
+  // Border Colors
+  static const Color border = Color(0xFFE0E0E0);
+  static const Color borderLight = Color(0xFFF0F0F0);
+  static const Color borderDark = Color(0xFFBDBDBD);
+
+  // Basic Color
+  static const Color white = Color(0xFFFFFFFF);
+  static const Color black = Color(0xFF000000);
+
+  // Gradient Colors
+  static const List<Color> primaryGradient = [
+    Color(0xFF36175e),
+    Color(0xFF5a2d85),
+  ];
+
+  static const List<Color> successGradient = [
+    Color(0xFF4CAF50),
+    Color(0xFF81C784),
+  ];
+
+  static const List<Color> backgroundGradient = [
+    Color(0xFFF5F5F5),
+    Color(0xFFE8E8E8),
+  ];
+
+  // Opacity Variations
+  static Color primaryWithOpacity(double opacity) =>
+      primary.withOpacity(opacity);
+  static Color successWithOpacity(double opacity) =>
+      success.withOpacity(opacity);
+  static Color errorWithOpacity(double opacity) => error.withOpacity(opacity);
+  static Color warningWithOpacity(double opacity) =>
+      warning.withOpacity(opacity);
 }

lib/common/theme/app_style.dart

@@ -1,5 +1,27 @@
 part of 'theme.dart';
 
 class AppStyle {
-  // TODO: define style
+  static TextStyle xs = TextStyle(color: AppColor.textPrimary, fontSize: 11);
+
+  static TextStyle sm = TextStyle(color: AppColor.textPrimary, fontSize: 12);
+
+  static TextStyle md = TextStyle(color: AppColor.textPrimary, fontSize: 14);
+
+  static TextStyle lg = TextStyle(color: AppColor.textPrimary, fontSize: 18);
+
+  static TextStyle xl = TextStyle(color: AppColor.textPrimary, fontSize: 20);
+
+  static TextStyle xxl = TextStyle(color: AppColor.textPrimary, fontSize: 22);
+
+  static TextStyle h6 = TextStyle(color: AppColor.textPrimary, fontSize: 24);
+
+  static TextStyle h5 = TextStyle(color: AppColor.textPrimary, fontSize: 26);
+
+  static TextStyle h4 = TextStyle(color: AppColor.textPrimary, fontSize: 28);
+
+  static TextStyle h3 = TextStyle(color: AppColor.textPrimary, fontSize: 30);
+
+  static TextStyle h2 = TextStyle(color: AppColor.textPrimary, fontSize: 32);
+
+  static TextStyle h1 = TextStyle(color: AppColor.textPrimary, fontSize: 34);
 }

lib/common/theme/app_value.dart

@@ -1,5 +1,7 @@
 part of 'theme.dart';
 
 class AppValue {
-  // TODO: define value
+  static const double padding = 16.0;
+  static const double radius = 8.0;
+  static const double elevation = 4.0;
 }