design-systems: add 74 brand DESIGN.md files (VoltAgent/awesome-design-md)

- 74 brands: airbnb, stripe, apple, figma, linear, vercel, etc.
- 147 files: DESIGN.md + README.md per brand (~2.1 MB)
- Each DESIGN.md contains structured brand analysis (colors, typography, components)
- Updated 00-overview.md with new design-systems directory

psychology/trust-signals.md

@@ -0,0 +1,115 @@
+---
+name: psychology/trust-signals
+title: Trust Signals & Credibility Indicators
+description: Badges, certifications, security indicators, social proof placement.
+tags: [psychology, trust, credibility, badges, security, cialdini]
+source: stripe.com, raycast.com, resend.com, baymard.com
+---
+
+# Trust Signals & Credibility Indicators
+
+## Пирамида доверия
+
+```
+[Security Certifications]    ← PCI DSS, GDPR, SOC 2
+        ↓
+[Brand Logos]                ← Known clients, partners
+        ↓
+[Statistics]                 ← Numbers, users, uptime
+        ↓
+[Testimonials]               ← Reviews, case studies
+        ↓
+[Guarantees]                 ← Money-back, free trial
+```
+
+## 1. Security Badges
+
+```html
+<div class="trust-badges">
+  <div class="badge">
+    <svg width="24" height="24">🔒</svg>
+    <span>SSL Encrypted</span>
+  </div>
+  <div class="badge">
+    <svg width="24" height="24">🛡️</svg>
+    <span>GDPR Compliant</span>
+  </div>
+  <div class="badge">
+    <svg width="24" height="24">✓</svg>
+    <span>SOC 2 Certified</span>
+  </div>
+</div>
+```
+
+```css
+.trust-badges {
+  display: flex;
+  gap: 16px;
+  flex-wrap: wrap;
+  justify-content: center;
+  padding: 24px 0;
+}
+
+.badge {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 16px;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: 8px;
+  font-size: 0.875rem;
+  color: var(--color-text-secondary);
+}
+```
+
+## 2. Uptime/Status
+
+```html
+<div class="status-bar">
+  <div class="status-indicator online">
+    <span class="dot"></span>
+    <span>99.9% uptime</span>
+  </div>
+  <div class="status-indicator">
+    <span>⚡ Fastest in Russia</span>
+  </div>
+  <div class="status-indicator">
+    <span>🌍 Moscow, SPb, Vladivostok</span>
+  </div>
+</div>
+```
+
+```css
+.status-bar {
+  display: flex;
+  gap: 24px;
+  justify-content: center;
+  padding: 16px 0;
+  font-size: 0.875rem;
+}
+
+.dot {
+  display: inline-block;
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  background: #10b981;
+  animation: pulse 2s infinite;
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.5; }
+}
+```
+
+## 3. Guarantee Section
+
+```html
+<section class="guarantee">
+  <div class="guarantee-badge">🛡️</div>
+  <h3>30-день гарантия возврата</h3>
+  <p>Если вам не понравится — вернём деньги без вопросов.</p>
+  <div class="trust-logos">
+    <img src="/vis...[truncated]