body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 20px;
    text-align: center;
}

header h1 {
    margin: 0;
}

#lang-toggle {
    background: white;
    color: #4CAF50;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 10px;
}

#lang-toggle:hover {
    background: #e0e0e0;
}

section {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

section h2 {
    color: #4CAF50;
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 10px;
}

.benefit {
    margin-bottom: 20px;
}

.benefit h3 {
    color: #333;
}

.benefit p {
    margin: 10px 0;
}

#examples ul {
    list-style-type: disc;
    padding-left: 20px;
}

#examples li {
    margin-bottom: 10px;
}

#game .container {
    text-align: center;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

input[type="number"] {
    padding: 10px;
    margin: 10px;
    width: 200px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    margin: 10px;
    padding: 10px 20px;
    background: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #45a049;
}

#result {
    margin: 10px 0;
    font-weight: bold;
}

#feedback form {
    display: flex;
    flex-direction: column;
}

#feedback label {
    margin-top: 10px;
    font-weight: bold;
}

#feedback input, #feedback textarea {
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#feedback textarea {
    height: 100px;
    resize: vertical;
}

@media (max-width: 600px) {
    section {
        margin: 10px;
        padding: 15px;
    }

    input[type="number"] {
        width: 80%;
    }
}