/* 全体設定 */
body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    text-align: center;
}

/* ヘッダー */
header {
    background-color: #333;
    color: white;
    padding: 10px;
}

header h1 {
    margin: 0;
    font-size: 24px;
}

nav {
    margin-top: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 16px;
}

nav a:hover {
    text-decoration: underline;
}

/* メインコンテンツ */
main {
    width: 60%;
    margin: 20px auto;
    background-color: white;
    padding: 20px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

/* スレッド一覧 */
.thread-list {
    list-style: none;
    padding: 0;
}

.thread-item {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

.thread-item a {
    text-decoration: none;
    color: black;
    display: flex;
    align-items: center;
    width: 100%;
}

.thread-thumbnail {
    width: 80px;
    height: 80px;
    margin-right: 15px;
    object-fit: cover;
    border-radius: 5px;
}

.thread-info h3 {
    margin: 0;
    font-size: 18px;
}

.thread-info p {
    margin: 5px 0 0;
    font-size: 14px;
    color: #666;
}

/* 投稿フォーム */
form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

form input, form textarea {
    width: 80%;
    padding: 10px;
    margin: 5px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}

form button {
    background-color: #333;
    color: white;
    border: none;
    padding: 10px 15px;
    margin-top: 10px;
    cursor: pointer;
    border-radius: 5px;
}

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

/* レス一覧 */
.post-list {
    list-style: none;
    padding: 0;
    text-align: left;
}

.post-item {
    border-bottom: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    background-color: #f9f9f9;
    border-radius: 5px;
}

.post-item strong {
    color: #333;
}

.post-item p {
    margin: 5px 0;
}

/* 画像表示 */
.post-image {
    max-width: 200px;
    height: auto;
    display: block;
    margin-top: 10px;
}

/* 統計情報 */
.stats {
    margin-top: 20px;
    font-size: 16px;
    color: #444;
}