body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.logo {
    width: 50px;
    height: 50px;
    margin-right: 20px;
}

h1 {
    margin: 0;
    color: #333;
}

#posts {
    margin-top: 20px;
}

.post {
    border-bottom: 1px solid #ddd;
    padding: 10px 0;
}

.post h3 {
    margin: 0;
    color: #007BFF;
}

.post p {
    margin: 5px 0;
}

.reply {
    margin-left: 20px;
    padding: 5px 0;
    border-top: 1px solid #eee;
}

#pagination {
    text-align: center;
    margin: 20px 0;
}

#pagination button {
    margin: 0 5px;
    padding: 10px 20px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    cursor: pointer;
}

#pagination button:hover {
    background-color: #0056b3;
}

input[type="text"],
textarea {
    width: calc(100% - 20px);
    padding: 10px;
    margin: 10px 10px 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
}

textarea[id="postContent"] {
    height: 8em;
}

textarea label {
    display: block;
    margin: 10px 0 5px;
}

button {
    padding: 10px 20px;
    background-color: #28a745;
    color: #fff;
    border: none;
    cursor: pointer;
    text-align: center;
}

button.commit {
    display: block;
    margin: 0 auto;
}

button:hover {
    background-color: #218838;
}

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

    .header {
        flex-direction: column;
        align-items: flex-start;
    }

    .logo {
        margin-bottom: 10px;
    }

    h1 {
        font-size: 24px;
    }

    #pagination button {
        padding: 8px 16px;
    }

    button {
        padding: 8px 16px;
    }

    input[type="text"],
    textarea {
        width: calc(100% - 20px);
    }
}