body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background: #003366;
    color: white;
    padding: 15px;
    text-align: center;
    margin-bottom: 20px;
}

header h1 {
    margin: 0;
    font-size: 1.5em;
}

header h2 {
    margin: 5px 0 0 0;
    font-size: 1em;
    font-weight: normal;
}

main {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.view {
    display: none;
}

.view.active {
    display: block;
}

.hidden {
    display: none !important;
}

button {
    background: #003366;
    color: white;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 3px;
}

button:hover {
    background: #002244;
}

input[type="text"] {
    width: 100%;
    padding: 8px;
    margin: 10px 0 15px 0;
    box-sizing: border-box;
}

.navigation-buttons {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
}

.option-label {
    display: block;
    margin: 10px 0;
    cursor: pointer;
}

#module-indicator {
    font-weight: bold;
    color: #666;
    font-size: 0.9em;
}

.pass {
    color: green;
    font-weight: bold;
}

.fail {
    color: red;
    font-weight: bold;
}