feat: add interface example section with enhanced styling

Author: dataGriff

docs/assets/stylesheets/extra.css

@@ -41,6 +41,39 @@
   flex-wrap: wrap;
 }
 
+/* Interface Example Styling */
+.interface-example {
+  background: var(--md-code-bg-color);
+  border-radius: 12px;
+  padding: 2rem;
+  margin: 2rem 0;
+  border-left: 4px solid var(--ci-primary);
+}
+
+.interface-example .highlight {
+  background: var(--md-default-bg-color);
+  border-radius: 8px;
+  margin: 1rem 0;
+  border: 1px solid var(--md-default-fg-color--lightest);
+}
+
+.interface-example pre {
+  padding: 1.5rem;
+  font-family: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', monospace;
+  font-size: 0.9rem;
+  line-height: 1.6;
+}
+
+.interface-example ul {
+  margin-top: 1rem;
+  padding-left: 1rem;
+}
+
+.interface-example li {
+  margin: 0.5rem 0;
+  padding: 0.25rem 0;
+}
+
 /* Grid Layouts */
 .audience-grid {
   display: grid;

docs/index.md

@@ -110,6 +110,34 @@ A **comprehensive set of principles** that promote ease of use of codebases acro
 
 ---
 
+## 📁 Interface Example
+
+<div class="interface-example" markdown>
+
+Here's what a codebase interface looks like in practice:
+
+```
+my-project/
+├── 📖 README.md              # User interface - how to use the project
+├── 🤝 CONTRIBUTING.md        # Contributor interface - how to contribute
+├── 🖥️ RUNBOOK.md            # Operator interface - how to deploy/operate
+├── 🤖 AGENTS.md              # AI Agent interface - how agents should interact
+├── 📝 TODO.md                # Outstanding tasks and roadmap
+├── 📋 Taskfile.yml           # Unified task automation interface
+├── ⚙️ .editorconfig          # Code formatting standards
+└── 📏 .gitattributes         # Git handling rules
+```
+
+**Key Benefits:**
+- ✅ **Predictable** - Same structure across all projects
+- 🚀 **Fast Onboarding** - New team members know exactly where to look
+- 🤖 **AI-Friendly** - Automated tools understand your project structure
+- 🔄 **Universal** - Works with any programming language or framework
+
+</div>
+
+---
+
 ## ⭐ Key Principles
 
 <div class="principles-grid" markdown>