diff --git a/vorschau/index.html b/vorschau/index.html
index e843821..ec21ebb 100644
--- a/vorschau/index.html
+++ b/vorschau/index.html
@@ -10,6 +10,85 @@
     <link rel="stylesheet" href="css/style.css">
 </head>
 <body>
+
+    <!-- Password Gate -->
+    <style>
+        #login-gate {
+            position: fixed;
+            inset: 0;
+            z-index: 10000;
+            background: #0A1832;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            justify-content: center;
+            font-family: 'Inter', system-ui, sans-serif;
+        }
+        #login-gate .gate-logo {
+            width: 80px; height: 80px;
+            margin-bottom: 2rem;
+        }
+        #login-gate .gate-logo img {
+            width: 100%; height: 100%;
+            background: #fff; border-radius: 12px; padding: 6px;
+        }
+        #login-gate h1 {
+            font-size: 1.6rem; font-weight: 700;
+            color: #C8A851; margin-bottom: 0.5rem;
+        }
+        #login-gate p {
+            font-size: 0.95rem; color: #A0A8B8;
+            margin-bottom: 1.5rem;
+        }
+        #login-gate .pw-form {
+            display: flex; gap: 0.5rem;
+        }
+        #login-gate .pw-input {
+            padding: 0.7rem 1rem;
+            border: 1px solid rgba(200,168,81,0.3);
+            border-radius: 6px;
+            background: rgba(255,255,255,0.05);
+            color: #E8E8E8;
+            font-family: inherit; font-size: 0.95rem;
+            width: 220px; outline: none;
+        }
+        #login-gate .pw-input:focus { border-color: #C8A851; }
+        #login-gate .pw-input::placeholder { color: #5A6478; }
+        #login-gate .pw-btn {
+            padding: 0.7rem 1.2rem; border: none; border-radius: 6px;
+            background: #C8A851; color: #0A1832;
+            font-family: inherit; font-size: 0.95rem; font-weight: 600;
+            cursor: pointer;
+        }
+        #login-gate .pw-btn:hover { background: #D4B96A; }
+        #login-gate .pw-error {
+            color: #E85454; font-size: 0.85rem;
+            margin-top: 0.75rem; display: none;
+        }
+        body.locked { overflow: hidden; }
+    </style>
+    <div id="login-gate">
+        <div class="gate-logo">
+            <img src="/assets/images/logos/AegisSightLogo_NavyGold.svg" alt="AegisSight">
+        </div>
+        <h1>Vorschau</h1>
+        <p>Zugang nur mit Passwort</p>
+        <form class="pw-form" onsubmit="return checkPassword(event)">
+            <input type="password" class="pw-input" id="pw-input" placeholder="Passwort" autofocus>
+            <button type="submit" class="pw-btn">Weiter</button>
+        </form>
+        <div class="pw-error" id="pw-error">Falsches Passwort</div>
+    </div>
+    <script>
+        var PW_HASH='feab257468bdb1b836bae5bc439db625d9a1b9a56ca60e0916ab04fb04c2ec31';
+        function sha256(s){return crypto.subtle.digest('SHA-256',new TextEncoder().encode(s)).then(function(b){return Array.from(new Uint8Array(b)).map(function(x){return x.toString(16).padStart(2,'0')}).join('')})}
+        function getCookie(n){var m=document.cookie.match(new RegExp('(?:^|; )'+n+'=([^;]*)'));return m?m[1]:null}
+        function setCookie(n,v,d){var e=new Date();e.setTime(e.getTime()+d*864e5);document.cookie=n+'='+v+';expires='+e.toUTCString()+';path=/vorschau/;SameSite=Strict;Secure'}
+        function unlock(){document.getElementById('login-gate').style.display='none';document.body.classList.remove('locked')}
+        function checkPassword(e){e.preventDefault();sha256(document.getElementById('pw-input').value).then(function(h){if(h===PW_HASH){setCookie('vorschau_auth',h,30);unlock()}else{document.getElementById('pw-error').style.display='block';document.getElementById('pw-input').value='';document.getElementById('pw-input').focus()}});return false}
+        if(getCookie('vorschau_auth')===PW_HASH){unlock()}else{document.body.classList.add('locked')}
+    </script>
+
     <!-- Navigation -->
     <nav class="navbar" id="navbar">
         <div class="nav-container">
