body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #fff;
    margin: 0;
    padding: 20px;
    color: #000;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

h1, h2 {
    color: #333;
}

.tape {
    font-family: monospace;
    font-size: 16px;
    border: 1px solid #ccc;
    padding: 10px;
    margin: 10px 0;
    background-color: #f9f9f9;
    display: inline-block;
}

label {
    margin: 10px 0;
    display: block;
}

input[type="text"] {
    padding: 5px;
    margin: 5px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.button-group {
    margin: 10px 0;
}

button {
    padding: 8px 16px;
    margin: 5px;
    border: 1px solid #ccc;
    background-color: #fff;
    cursor: pointer;
    border-radius: 3px;
}

button:hover {
    background-color: #e0e0e0;
}

.transition-table {
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
}

th, td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: center;
}

th {
    background-color: #f0f0f0;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    text-align: left;
}

.modal-content input {
    margin: 5px 0;
    width: 100%;
    padding: 5px;
}