/* General styles */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: 0 auto;
}

h1, h2, h3 {
    color: #333;
    font-family: 'Arial', sans-serif;
}

button {
    margin: 10px;
    padding: 10px 15px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    background-color: #333;
    color: #fff;
    border-radius: 5px;
}

button:hover {
    background-color: #555;
}

a {
    color: #333;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Navigation */
nav ul {
    display: flex;
    justify-content: flex-start;
    list-style-type: none;
    padding: 0;
}

nav ul li {
    margin-right: 20px;
}

/* Language and Theme toggle buttons */
#language-toggle, #theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    font-size: 20px;
}

/* Dark mode styles */
.dark-mode {
    background-color: #333;
    color: #fff;
}

/* Show/hide content based on language */
.lang-fa {
    display: none;
}

body.lang-fa .lang-fa {
    display: block;
}

body.lang-en .lang-en {
    display: block;
}

body.lang-en .lang-fa {
    display: none;
}