/* Reset some default browser styles */
body, h1, h2, ul, li, p, form, input, textarea, button {
    margin: 0;
    padding: 0;
    border: 0;
}

/* Global styles */
body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

ul {
    list-style: none;
}

/* Navigation menu */
nav {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
}

nav ul {
    text-align: center;
}

nav li {
    display: inline;
    margin-right: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

/* Form styles */
form {
    background-color: #fff;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

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

form input[type="text"],
form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

form button {
    background-color: #0074cc;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 3px;
    cursor: pointer;
}

/* Message list styles */
.message-list {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    margin-top: 20px;
}

.message {
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

/* Profile styles */
.profile {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    margin-top: 20px;
}

/* Footer styles */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: absolute;
    bottom: 0;
    width: 100%;
}

/* Responsive styles */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    form {
        padding: 10px;
    }
}