styles.css

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f7f3e9;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1,
h2,
h3 {
    color: #d32f2f;
    /* Traditional Japanese red */
}

div {
    margin: 20px;
    flex: 1;
    /* This makes the main content area take up available space */
}

label {
    display: block;
    margin-bottom: 10px;
    color: #333;
}

input[type="text"],
textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #fff;
    color: #333;
}

button {
    background-color: #d32f2f;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:disabled {
    background-color: #ccc;
}

button:hover:enabled {
    background-color: #b71c1c;
}

pre {
    background-color: #fff;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    overflow-x: auto;
    color: #333;
}

a {
    color: #d32f2f;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
    width: 100%;
    position: relative;
    bottom: 0;
}

.warning-banner {
    background-color: #ffcc00;
    color: #333;
    text-align: center;
    padding: 10px;
    font-weight: bold;
}

.simulation-result {
    background-color: #fff;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-top: 20px;
}

.simulation-result h3 {
    color: #d32f2f;
}

.simulation-result button {
    background-color: #d32f2f;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.simulation-result button:hover {
    background-color: #b71c1c;
}