body {
    font-family: Arial, sans-serif;
    background-color: #f5f8fa;
    color: #14171a;
    margin: 0;
    padding: 0;
    direction: rtl;
}
header {
    background-color: #1da1f2;
    color: #fff;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
header h1 {
    margin: 0;
    font-size: 24px;
}
.new-post-btn {
    background-color: #fff;
    color: #1da1f2;
    padding: 10px 15px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
}
.new-post-btn:hover {
    background-color: #e8f5fd;
}
main {
    padding: 20px;
}
.post {
    background-color: #fff;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    margin-bottom: 15px;
    padding: 10px 15px;
}
.post-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}
.post-content {
    font-size: 16px;
    margin-bottom: 8px;
}
.post-image img {
    max-width: 100%;
    border-radius: 8px;
}
.error {
    color: red;
}
button {
    background-color: #1da1f2;
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
}
button:hover {
    background-color: #0d95e8;
}
input[type="text"], textarea {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #ccd6dd;
    border-radius: 4px;
}