/* Layout & Styling zur einfachen Anpassung */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f4f6f9;
    color: #333;
    margin: 0;
    padding: 20px;
}
.container {
    max-width: 650px;
    margin: 40px auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
h1, h2 { color: #1a252f; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: 600; }
input[type="text"], input[type="password"], textarea, select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
button, .btn {
    background-color: #0066cc;
    color: white;
    padding: 10px 18px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
button:hover, .btn:hover { background-color: #004999; }
.secret-box {
    background: #eef6ff;
    border-left: 4px solid #0066cc;
    padding: 15px;
    margin: 20px 0;
    word-break: break-all;
}
.warning { color: #d9534f; font-weight: bold; }