📦 deps(thirdparty): update snapshots

2026-06-19 16:05:48 +00:00
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+---
+name: retro-futurism
+description: Web and App implementation guide for Retro Futurism. Trigger when user wants vintage future concepts, 1950s space age aesthetics, or atompunk vibes.
+date_added: "2026-06-17"
+risk: safe
+source: self
+source_type: self
+---
+
+# Retro Futurism
+
+> "The future as imagined in the 1950s and 60s. Rockets, atoms, and sleek, aerodynamic chrome."
+
+
+## When to Use
+Use this sub-style when the user's request matches the aesthetic described above. This is a child reference of the `design-it` skill and is not meant to be triggered directly.
+
+## Core Principles
+1. **Aerodynamic Shapes**: Lots of sweeping curves, teardrop shapes, and swooping lines. Nothing is a perfect square.
+2. **Space-Age Motifs**: Stars, atoms, orbits, and fins (like a 1950s Cadillac).
+3. **Mid-Century Colors mixed with Chrome**: Classic 50s pastels paired with shiny, reflective metals.
+
+## Visual DNA
+- **Colors**: Turquoise (`#40E0D0`), Atomic Tangerine (`#FF9966`), Mint Green (`#98FF98`), paired with Silver/Chrome and deep Space Black.
+- **Typography**: Googie architecture fonts, bold cursive scripts, or clean mid-century geometric sans-serifs (like `Futura`).
+- **Styling**: Sleek bezels, dramatic drop shadows, and offset overlapping shapes.
+
+## Web Implementation
+- **CSS Example**:
+```css
+body {
+  background-color: #FDF5E6; /* Old paper / cream */
+  color: #2F4F4F;
+  font-family: 'Futura', 'Trebuchet MS', sans-serif;
+  overflow-x: hidden;
+}
+
+/* Googie-style sweeping background element */
+.retro-future-swoop {
+  position: absolute;
+  top: 0; right: -10%;
+  width: 120%; height: 300px;
+  background-color: #40E0D0; /* Turquoise */
+  border-radius: 0 0 50% 50%;
+  transform: rotate(-5deg);
+  z-index: -1;
+  border-bottom: 8px solid #FF9966; /* Atomic tangerine stripe */
+}
+
+.atompunk-card {
+  background-color: #fff;
+  border: 4px solid #Silver;
+  border-radius: 40px 10px 40px 10px; /* Sweeping, aerodynamic corners */
+  padding: 32px;
+  box-shadow: 15px 15px 0px rgba(0,0,0,0.1);
+  position: relative;
+}
+
+/* Classic starburst motif */
+.starburst {
+  position: absolute;
+  top: -20px; left: -20px;
+  width: 40px; height: 40px;
+  background-color: #FF9966;
+  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
+}
+```
+
+## App Implementation
+
+### SwiftUI
+```swift
+struct AtompunkShape: Shape {
+    func path(in rect: CGRect) -> Path {
+        var path = Path()
+        // Sweeping aerodynamic curves (large radius top-left, bottom-right)
+        path.addRoundedRect(
+            in: rect,
+            cornerSize: CGSize(width: 40, height: 40),
+            style: .continuous
+        )
+        // To be perfectly authentic, use Path to draw teardrop curves
+        return path
+    }
+}
+
+struct RetroFutureCard: View {
+    var body: some View {
+        VStack(alignment: .leading, spacing: 16) {
+            Text("ATOMPUNK")
+                .font(.custom("Futura", size: 28))
+                .fontWeight(.bold)
+                .foregroundColor(Color(red: 0.18, green: 0.31, blue: 0.31))
+            
+            Text("Sleek chrome and sweeping curves.")
+                .font(.custom("Futura", size: 16))
+        }
+        .padding(32)
+        .background(Color.white)
+        // Asymmetric corners: large top-left/bottom-right, small top-right/bottom-left
+        .cornerRadius(40, corners: [.topLeft, .bottomRight])
+        .cornerRadius(10, corners: [.topRight, .bottomLeft])
+        .overlay(
+            // Chrome-like border
+            RoundedRectangle(cornerRadius: 10) // Simplified overlay for demo
+                .stroke(
+                    LinearGradient(colors: [.gray, .white, .gray], startPoint: .top, endPoint: .bottom),
+                    lineWidth: 4
+                )
+        )
+        .shadow(color: .black.opacity(0.1), radius: 0, x: 15, y: 15)
+    }
+}
+// Note: Asymmetric corners require a custom ViewModifier in SwiftUI.
+```
+- Rely on asymmetrical corner radii to create the aerodynamic, teardrop aesthetic.
+- Metallic/Chrome borders are faked by using a `LinearGradient` of grays and whites.
+
+### Flutter
+```dart
+class RetroFutureCard extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.all(32),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        // Asymmetric "aerodynamic" shape
+        borderRadius: const BorderRadius.only(
+          topLeft: Radius.circular(40),
+          bottomRight: Radius.circular(40),
+          topRight: Radius.circular(10),
+          bottomLeft: Radius.circular(10),
+        ),
+        // Chrome border simulation
+        border: Border.all(
+          width: 4,
+          color: Colors.transparent, // Requires custom painter for gradient border
+        ),
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withOpacity(0.1),
+            offset: const Offset(15, 15),
+            blurRadius: 0, // Hard shadow
+          ),
+        ],
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        mainAxisSize: MainAxisSize.min,
+        children: const [
+          Text('ATOMPUNK',
+            style: TextStyle(fontFamily: 'Futura', fontSize: 28, fontWeight: FontWeight.bold, color: Color(0xFF2F4F4F))),
+          SizedBox(height: 16),
+          Text('Sleek chrome and sweeping curves.',
+            style: TextStyle(fontFamily: 'Futura', fontSize: 16)),
+        ],
+      ),
+    );
+  }
+}
+```
+- Flutter handles asymmetric corners natively via `BorderRadius.only()`.
+- Gradient borders (for chrome) require a `CustomPaint` or wrapping the container in another container with a gradient background and padding.
+
+### React Native
+```jsx
+const RetroFutureCard = () => {
+  return (
+    <View style={{
+      backgroundColor: '#FFF',
+      padding: 32,
+      // Asymmetric aerodynamic corners
+      borderTopLeftRadius: 40,
+      borderBottomRightRadius: 40,
+      borderTopRightRadius: 10,
+      borderBottomLeftRadius: 10,
+      
+      borderWidth: 4,
+      borderColor: '#C0C0C0', // Solid silver fallback for chrome
+      
+      // Offset hard shadow
+      shadowColor: '#000',
+      shadowOffset: { width: 15, height: 15 },
+      shadowOpacity: 0.1,
+      shadowRadius: 0,
+      elevation: 5,
+    }}>
+      <Text style={{ fontFamily: 'Futura', fontSize: 28, fontWeight: 'bold', color: '#2F4F4F' }}>
+        ATOMPUNK
+      </Text>
+      <Text style={{ fontFamily: 'Futura', fontSize: 16, marginTop: 16 }}>
+        Sleek chrome and sweeping curves.
+      </Text>
+    </View>
+  );
+};
+```
+- React Native natively supports `borderTopLeftRadius` style independent props, making the aerodynamic shapes trivial.
+- Complex geometric backgrounds (like starbursts) should definitely be SVG components imported via `react-native-svg`.
+
+### Jetpack Compose
+```kotlin
+@Composable
+fun RetroFutureCard() {
+    Box(
+        modifier = Modifier
+            .padding(24.dp)
+            // Fake hard shadow
+            .drawBehind {
+                drawRoundRect(
+                    color = Color.Black.copy(alpha = 0.1f),
+                    topLeft = Offset(15.dp.toPx(), 15.dp.toPx()),
+                    size = size,
+                    cornerRadius = CornerRadius(40.dp.toPx(), 10.dp.toPx()) // Simplification
+                )
+            }
+            .background(
+                color = Color.White,
+                // Aerodynamic asymmetric corners
+                shape = RoundedCornerShape(
+                    topStart = 40.dp,
+                    topEnd = 10.dp,
+                    bottomEnd = 40.dp,
+                    bottomStart = 10.dp
+                )
+            )
+            .border(
+                width = 4.dp,
+                brush = Brush.verticalGradient(listOf(Color.LightGray, Color.White, Color.LightGray)),
+                shape = RoundedCornerShape(
+                    topStart = 40.dp,
+                    topEnd = 10.dp,
+                    bottomEnd = 40.dp,
+                    bottomStart = 10.dp
+                )
+            )
+            .padding(32.dp)
+    ) {
+        Column {
+            Text("ATOMPUNK",
+                fontFamily = FontFamily.SansSerif, // Replace with Futura
+                fontSize = 28.sp, fontWeight = FontWeight.Bold, color = Color(0xFF2F4F4F))
+            Spacer(Modifier.height(16.dp))
+            Text("Sleek chrome and sweeping curves.", fontSize = 16.sp)
+        }
+    }
+}
+```
+- Use `RoundedCornerShape(topStart, topEnd, bottomEnd, bottomStart)` to create the atompunk aesthetic.
+- The `Modifier.border` takes a `Brush` natively, making the metallic chrome gradient incredibly easy to achieve compared to other frameworks.
+
+## Do's and Don'ts
+- **DO**: Use strict `Futura` or `Century Gothic` for a very authentic mid-century feel.
+- **DON'T**: Make the UI look dirty or distressed (that's standard retro or steampunk). Retro-futurism is clean, optimistic, and shiny.
+
+## Limitations
+- This is a styling reference and does not replace environment-specific validation, accessibility testing, or expert review.
+- Ensure appropriate contrast ratios and responsive behaviors are verified separately.