body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    font-family: Arial, sans-serif;
}

.nav-panel {
    flex: 1;
    width: 100%;
    background-color: #f2f2f2;
    padding: 20px;
}

.nav-panel h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 20px;
}

.nav-panel ul {
    list-style-type: none;
    padding: 0;
}

.nav-panel li {
    margin-bottom: 10px;
}

.nav-panel a {
    text-decoration: none;
    color: #333;
}

.main-frame {
    flex: 1;
    width: 100%;
    padding: 20px;
}

/* MailWizz Styles for Tables */
table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
}

th, td {
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f2f2f2;
}

/* MailWizz Styles for Forms */
form {
    margin-bottom: 20px;
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="submit"],
.button {
    background-color: #3498db;
    color: white;
    padding: 20px 60px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}