feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

landvex-site/verticals/investors/index.html

@@ -181,7 +181,7 @@
       display: flex; align-items: center; gap: 12px;
     }
     .decision-chip .chip-dot {
-      width: 8px; height: 8px; border-radius: 50%;
+      width: 8px; height: 8px; border-radius: var(--radius-full);
       background: var(--blue); flex-shrink: 0;
     }
     .decision-chip span { font-size: 15px; font-weight: 600; color: var(--text-light); }
@@ -201,7 +201,7 @@
       content: '';
       position: absolute; top: 0; left: 0;
       width: 4px; height: 100%;
-      background: var(--blue); border-radius: 4px 0 0 4px;
+      background: var(--blue); border-radius: var(--radius-sm) 0 0 4px;
     }
     .question-card p {
       font-size: 16px; font-weight: 600; color: #0a0a0a; line-height: 1.5;
@@ -218,7 +218,7 @@
     .contradiction-box {
       background: rgba(0,0,0,.05);
       border: 1px solid rgba(0,0,0,.1);
-      border-radius: 16px; padding: 36px 40px; margin-bottom: 32px;
+      border-radius: var(--radius-lg); padding: 36px 40px; margin-bottom: 32px;
     }
 
     .conflict-header {
@@ -230,7 +230,7 @@
 
     .conflict-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
 
-    .conflict-side { border-radius: 10px; padding: 16px; }
+    .conflict-side { border-radius: var(--radius-md); padding: 16px; }
     .conflict-official { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.2); }
     .conflict-observed { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.2); }
 
@@ -269,14 +269,14 @@
     .score-icon-wrap { margin-bottom: 12px; }
     .score-name { font-size: 15px; font-weight: 700; color: #1d1d1f; margin-bottom: 6px; }
     .score-desc { font-size: 13px; color: var(--text-dim); line-height: 1.5; margin-bottom: 20px; }
-    .score-bar-wrap { background: rgba(0,0,0,.06); border-radius: 6px; height: 8px; margin-bottom: 10px; }
-    .score-bar { height: 8px; border-radius: 6px; background: linear-gradient(90deg, var(--blue), #5599ff); }
+    .score-bar-wrap { background: rgba(0,0,0,.06); border-radius: var(--radius-sm); height: 8px; margin-bottom: 10px; }
+    .score-bar { height: 8px; border-radius: var(--radius-sm); background: linear-gradient(90deg, var(--blue), #5599ff); }
     .score-value { font-size: 28px; font-weight: 800; color: var(--blue); letter-spacing: -1px; }
     .score-label-sub { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
 
     /* CTA BANNER */
     .cta-banner {
-      background: #e8f0fe; border-radius: 16px; padding: 40px 48px;
+      background: #e8f0fe; border-radius: var(--radius-lg); padding: 40px 48px;
       display: flex; align-items: center; gap: 48px; flex-wrap: wrap;
       margin-top: 48px;
     }
@@ -329,7 +329,7 @@
     .footer-links a { font-size: 14px; color: var(--text-muted); transition: color 0.2s; }
     .footer-links a:hover { color: #1d1d1f; }
     .footer-social {
-      width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 8px;
+      width: 32px; height: 32px; border: 1px solid var(--border); border-radius: var(--radius-md);
       display: flex; align-items: center; justify-content: center;
       transition: border-color 0.2s, background 0.2s;
     }
@@ -359,7 +359,7 @@
       .hero h1 { letter-spacing: -1px; }
     }
   
-    .lv-disclaimer{font-size:.75rem;color:rgba(0,0,0,.75);margin-top:24px;padding:12px 16px;background:rgba(0,0,0,.04);border-radius:8px;line-height:1.6;max-width:800px}
+    .lv-disclaimer{font-size:.75rem;color:rgba(0,0,0,.75);margin-top:24px;padding:12px 16px;background:rgba(0,0,0,.04);border-radius: var(--radius-md);line-height:1.6;max-width:800px}
     .lv-disclaimer a{color:rgba(0,0,0,.65);text-decoration:underline}
     .lv-disclaimer--light{color:#888;background:#f5f5f5}
     .lv-disclaimer--light a{color:#555}
@@ -573,18 +573,18 @@
           <div class="conflict-side conflict-official">
             <div class="conflict-side-label">Investment thesis</div>
             <ul>
-              <li>&#10003; Office vacancy declining per broker data</li>
-              <li>&#10003; Rental rates up 6.2% YoY</li>
-              <li>&#10003; Major tenant signings reported</li>
+              <li>&#100003 Office vacancy declining per broker data</li>
+              <li>&#100003 Rental rates up 6.2% YoY</li>
+              <li>&#100003 Major tenant signings reported</li>
             </ul>
           </div>
           <div class="conflict-side conflict-observed">
             <div class="conflict-side-label">Observed reality</div>
             <ul>
-              <li>&#10007; Ground-floor retail vacancy up 31% vs prior year</li>
-              <li>&#10007; Multiple business closures, limited new openings</li>
-              <li>&#10007; Foot traffic down 25% vs comparable streets</li>
-              <li>&#10007; Deferred maintenance visible on 35% of sampled buildings</li>
+              <li>&#100007 Ground-floor retail vacancy up 31% vs prior year</li>
+              <li>&#100007 Multiple business closures, limited new openings</li>
+              <li>&#100007 Foot traffic down 25% vs comparable streets</li>
+              <li>&#100007 Deferred maintenance visible on 35% of sampled buildings</li>
             </ul>
           </div>
         </div>