diff --git a/deploy_to_hetzner_AI.sh b/deploy_to_hetzner_AI.sh
deleted file mode 100644
index 78ff8b2..0000000
--- a/deploy_to_hetzner_AI.sh
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/bin/bash
-# SummitWave deployment with proper cache-busting for CSS/JS
-
-SERVER="www269.your-server.de"
-USER="summitb"
-REMOTE_DIR="public_html"
-LOCAL_DIR="$(dirname "$0")/src"
-
-# === PASSWORD FROM ENVIRONMENT VARIABLE ===
-# export SFTP_PASS='DeinSFTPPasswort'
-if [ -z "$SFTP_PASS" ]; then
-    echo "Error: Please set the SFTP_PASS environment variable with your password."
-    exit 1
-fi
-
-# === CHECK sshpass INSTALLATION ===
-if ! command -v sshpass &> /dev/null; then
-    echo "Error: sshpass is not installed. Install with: sudo apt install sshpass"
-    exit 1
-fi
-
-# === CREATE TEMPORARY WORKING COPY OF index_noSIG_AIopt.html WITH CACHE-BUSTING ===
-CACHE_PARAM=$(date +%s)  # Timestamp als Cache-Buster
-TEMP_INDEX=$(mktemp)
-
-# Nur CSS und JS Links in <link> und <script> anpassen
-sed -E 's/(href="[^"]+\.css")/\1?v='"$CACHE_PARAM"'/g;
-        s/(src="[^"]+\.js")/\1?v='"$CACHE_PARAM"'/g' \
-        "$LOCAL_DIR/index_noSIG_AIopt.html" > "$TEMP_INDEX"
-
-# === CREATE TEMPORARY SFTP BATCH FILE ===
-BATCH_FILE=$(mktemp)
-cat > "$BATCH_FILE" <<EOF
-cd $REMOTE_DIR
-
-# Upload modified index.html as index.html
-put "$TEMP_INDEX" index.html
-
-# Upload other static files
-put "$LOCAL_DIR/impressum.html"
-put "$LOCAL_DIR/robots.txt"
-put "$LOCAL_DIR/sitemap.xml"
-put "$LOCAL_DIR/.htaccess"
-
-# Ensure img folder exists and upload images
-mkdir img
-cd img
-put "$LOCAL_DIR/img/"*
-cd ..
-# Ensure manual folder exists and upload manual page
-mkdir manual
-put "$LOCAL_DIR/manual/index.html" manual/index.html
-
-bye
-EOF
-
-# === UPLOAD ALL FILES IN ONE SFTP SESSION ===
-echo "Uploading website files to $USER@$SERVER:$REMOTE_DIR ..."
-sshpass -p "$SFTP_PASS" sftp -oBatchMode=no -b "$BATCH_FILE" $USER@$SERVER
-
-# === CLEANUP ===
-rm "$BATCH_FILE" "$TEMP_INDEX"
-
-echo "Deployment complete! Visit your website: http://www.summitwave.eu/?v=$CACHE_PARAM"
diff --git a/src/manual/auth.config.php b/src/manual/auth.config.php
new file mode 100644
index 0000000..c8acdbf
--- /dev/null
+++ b/src/manual/auth.config.php
@@ -0,0 +1,12 @@
+<?php
+
+// Zentrale Benutzerverwaltung
+// Benutzername => Passwort (Klartext)
+// Für mehr Sicherheit kann später auf gehashte Passwörter umgestellt werden.
+return [
+    'users' => [
+        'summitwave_malte'            => 'M8uN3fZq!c2Lx9Pt',
+        'summitwave_patrick'          => 'S4rK7vBw#h1Dz6Qe',
+        'ellerbrock_konferenztechnik' => 'E9pL2mTy@k5Vg8Rs',
+    ],
+];
diff --git a/src/manual/auth.php b/src/manual/auth.php
new file mode 100644
index 0000000..cb97243
--- /dev/null
+++ b/src/manual/auth.php
@@ -0,0 +1,87 @@
+<?php
+
+session_start();
+
+const SW_MANUAL_LOG_FILE = __DIR__ . '/logs/access.log';
+
+function sw_load_users(): array {
+    $cfgPath = __DIR__ . '/auth.config.php';
+    if (!file_exists($cfgPath)) {
+        return [];
+    }
+    $cfg = require $cfgPath;
+    return $cfg['users'] ?? [];
+}
+
+function sw_verify_login(string $username, string $password): bool {
+    $users = sw_load_users();
+    if (!isset($users[$username])) {
+        return false;
+    }
+    $expected = (string)$users[$username];
+    return hash_equals($expected, $password);
+}
+
+function sw_current_user(): ?string {
+    return $_SESSION['sw_manual_user'] ?? null;
+}
+
+function sw_require_login(): void {
+    if (!sw_current_user()) {
+        header('Location: login.php');
+        exit;
+    }
+}
+
+function sw_record_login(string $username): void {
+    $dir = dirname(SW_MANUAL_LOG_FILE);
+    if (!is_dir($dir)) {
+        @mkdir($dir, 0775, true);
+    }
+    $ts   = (new DateTimeImmutable('now', new DateTimeZone('Europe/Berlin')))->format(DateTimeInterface::ATOM);
+    $ip   = $_SERVER['REMOTE_ADDR'] ?? '-';
+    $ua   = $_SERVER['HTTP_USER_AGENT'] ?? '-';
+    $line = $ts . ';' . $username . ';' . $ip . ';' . str_replace("\n", ' ', $ua) . "\n";
+    @file_put_contents(SW_MANUAL_LOG_FILE, $line, FILE_APPEND | LOCK_EX);
+}
+
+function sw_last_login_for_user(string $username): ?DateTimeImmutable {
+    if (!file_exists(SW_MANUAL_LOG_FILE)) {
+        return null;
+    }
+
+    $fh = @fopen(SW_MANUAL_LOG_FILE, 'r');
+    if (!$fh) {
+        return null;
+    }
+
+    $last = null;
+    while (($line = fgets($fh)) !== false) {
+        $parts = explode(';', trim($line));
+        if (count($parts) < 2) {
+            continue;
+        }
+        [$ts, $user] = $parts;
+        if ($user !== $username) {
+            continue;
+        }
+        try {
+            $dt = new DateTimeImmutable($ts);
+            if ($last === null || $dt > $last) {
+                $last = $dt;
+            }
+        } catch (Exception $e) {
+            continue;
+        }
+    }
+    fclose($fh);
+
+    return $last;
+}
+
+function sw_format_dt(?DateTimeImmutable $dt): string {
+    if ($dt === null) {
+        return '–';
+    }
+    return $dt->setTimezone(new DateTimeZone('Europe/Berlin'))->format('d.m.Y, H:i \U\h\r');
+}
diff --git a/src/manual/index.php b/src/manual/index.php
new file mode 100644
index 0000000..b18c150
--- /dev/null
+++ b/src/manual/index.php
@@ -0,0 +1,39 @@
+<?php
+require __DIR__ . '/auth.php';
+
+sw_require_login();
+$user = sw_current_user();
+$lastLoginDt = $user ? sw_last_login_for_user($user) : null;
+$lastLoginStr = sw_format_dt($lastLoginDt);
+
+$indexPath = __DIR__ . '/index.html';
+if (!is_file($indexPath)) {
+    header('Content-Type: text/plain; charset=utf-8');
+    echo "Manual index.html nicht gefunden.";
+    exit;
+}
+
+$html = file_get_contents($indexPath);
+if ($html === false) {
+    header('Content-Type: text/plain; charset=utf-8');
+    echo "Manual konnte nicht geladen werden.";
+    exit;
+}
+
+$badgeOriginal = '<div class="badge">Stand: 2025-12-13</div>';
+
+$userEsc = htmlspecialchars($user ?? '', ENT_QUOTES, 'UTF-8');
+$loginEsc = htmlspecialchars($lastLoginStr, ENT_QUOTES, 'UTF-8');
+
+$badgeReplacement = '<div class="badge">Stand: 2025-12-13<br />' .
+    $userEsc . ' · letzter Login: ' . $loginEsc . '<br />' .
+    '<a href="logout.php" style="color:#9ca3af; text-decoration:none;">Abmelden</a></div>';
+
+if (strpos($html, $badgeOriginal) !== false) {
+    $html = str_replace($badgeOriginal, $badgeReplacement, $html);
+}
+
+header('Content-Type: text/html; charset=utf-8');
+echo $html;
+exit;
+
diff --git a/src/manual/login.php b/src/manual/login.php
new file mode 100644
index 0000000..a45bf30
--- /dev/null
+++ b/src/manual/login.php
@@ -0,0 +1,130 @@
+<?php
+require __DIR__ . '/auth.php';
+
+$error = null;
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $username = trim($_POST['username'] ?? '');
+    $password = (string)($_POST['password'] ?? '');
+
+    if ($username === '' || $password === '') {
+        $error = 'Bitte Benutzername und Passwort eingeben.';
+    } elseif (!sw_verify_login($username, $password)) {
+        $error = 'Ungültige Zugangsdaten.';
+    } else {
+        $_SESSION['sw_manual_user'] = $username;
+        sw_record_login($username);
+        header('Location: index.php');
+        exit;
+    }
+}
+
+?><!doctype html>
+<html lang="de">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>Summitwave Beacon – Login</title>
+  <style>
+    body {
+      margin: 0;
+      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Ubuntu", "Segoe UI", sans-serif;
+      background: radial-gradient(1400px 900px at 0% -10%, rgba(0,0,0,.65), transparent 60%),
+                  radial-gradient(1100px 800px at 100% 110%, rgba(0,0,0,.8), transparent 70%),
+                  #101218;
+      color: #f5f5f7;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      min-height: 100vh;
+    }
+    .card {
+      width: 100%;
+      max-width: 360px;
+      background: #181b22;
+      border-radius: 16px;
+      box-shadow: 0 18px 40px rgba(0,0,0,.65);
+      padding: 20px 22px 18px;
+      border: 1px solid rgba(0,0,0,.8);
+    }
+    h1 {
+      margin: 0 0 4px;
+      font-size: 20px;
+    }
+    .muted {
+      color: #9ca3af;
+      font-size: 13px;
+      margin-bottom: 16px;
+    }
+    label {
+      display: block;
+      font-size: 13px;
+      margin: 8px 0 4px;
+    }
+    input[type="text"],
+    input[type="password"] {
+      width: 100%;
+      padding: 8px 10px;
+      border-radius: 8px;
+      border: 1px solid rgba(55,65,81,.9);
+      background: #020617;
+      color: #f5f5f7;
+      font-size: 14px;
+      box-sizing: border-box;
+    }
+    input[type="text"]:focus,
+    input[type="password"]:focus {
+      outline: none;
+      border-color: #11b6ad;
+      box-shadow: 0 0 0 1px rgba(17,182,173,.7);
+    }
+    .btn {
+      margin-top: 14px;
+      width: 100%;
+      padding: 9px 14px;
+      border-radius: 999px;
+      border: none;
+      background: #11b6ad;
+      color: #021310;
+      font-weight: 600;
+      font-size: 14px;
+      cursor: pointer;
+    }
+    .btn:hover {
+      opacity: .95;
+    }
+    .error {
+      margin-top: 8px;
+      padding: 8px 10px;
+      border-radius: 10px;
+      background: rgba(248,113,113,.16);
+      border: 1px solid rgba(248,113,113,.7);
+      font-size: 13px;
+    }
+    .hint {
+      margin-top: 10px;
+      font-size: 12px;
+      color: #9ca3af;
+    }
+  </style>
+</head>
+<body>
+  <div class="card">
+    <h1>Login</h1>
+    <div class="muted">Zugriff auf die Summitwave Beacon Online‑Anleitung.</div>
+    <?php if ($error): ?>
+      <div class="error"><?php echo htmlspecialchars($error, ENT_QUOTES, 'UTF-8'); ?></div>
+    <?php endif; ?>
+    <form method="post" action="">
+      <label for="username">Benutzername</label>
+      <input type="text" id="username" name="username" autocomplete="username" required />
+
+      <label for="password">Passwort</label>
+      <input type="password" id="password" name="password" autocomplete="current-password" required />
+
+      <button type="submit" class="btn">Anmelden</button>
+    </form>
+    <div class="hint">Bei Fragen zu Zugangsdaten bitte an den Systemverantwortlichen wenden.</div>
+  </div>
+</body>
+</html>
diff --git a/src/manual/logout.php b/src/manual/logout.php
new file mode 100644
index 0000000..7348c83
--- /dev/null
+++ b/src/manual/logout.php
@@ -0,0 +1,8 @@
+<?php
+require __DIR__ . '/auth.php';
+
+$_SESSION['sw_manual_user'] = null;
+session_destroy();
+
+header('Location: login.php');
+exit;
diff --git a/src/manual/logs/access.log b/src/manual/logs/access.log
new file mode 100644
index 0000000..e69de29