body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
    text-align: center;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #0078D7;
}

.menu {
    margin-bottom: 20px;
}

.menu button {
    margin: 10px;
    padding: 10px 20px;
    font-size: 1rem;
    background: #0078D7;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.menu button:hover {
    background: #005bb5;
}

.form-section {
    display: none;
}

.form-section.active {
    display: block;
}

label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #0078D7;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
}

button:hover {
    background-color: #005bb5;
}

.result {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f9f9f9;
}