@charset "UTF-8";

/* 掲示板用スタイル */

:root {
	--accent: #4f8a6d;
	--accent-light: #6ba98a;
	--ink: #21252b;
	--deep: #2f4f45;
	--panel: #ffffff;
	--muted: #6b7280;
	--line: #dcdfe4;
	--notice: #15803d;
	--error: #b91c1c;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	padding: 0;
	background: #f4f2ec;
	color: var(--ink);
	font-family: Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
	line-height: 1.8;
}

.wrap {
	max-width: 800px;
	margin: 0 auto;
	padding: 1rem;
}

.site-header {
	padding: 1rem;
	margin: 0 0 0.5rem;
	background: var(--deep);
	border-radius: 10px;
	color: #ffffff;
	text-align: center;
}

.site-header h1 {
	margin: 0;
	font-size: 1.5rem;
	letter-spacing: 0.15em;
}

.site-header h1 a {
	color: #ffffff;
	text-decoration: none;
}

.site-header__sub {
	margin: 0.25rem 0 0;
	font-size: 0.85rem;
	color: #cfdcd5;
}

.site-nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem;
	margin: 0 0 1rem;
}

.site-nav a {
	flex: 1 1 auto;
	padding: 0.35rem 0.75rem;
	background: var(--accent);
	border-radius: 6px;
	color: #ffffff;
	font-size: 0.9rem;
	font-weight: bold;
	text-align: center;
	text-decoration: none;
}

.site-nav a:hover {
	background: var(--accent-light);
}

.site-footer {
	padding: 0.5rem 0 2rem;
	font-size: 0.85rem;
	text-align: center;
}

.site-footer__note {
	margin: 0 0 0.5rem;
	color: var(--muted);
	text-align: left;
}

.panel {
	background: var(--panel);
	border-radius: 10px;
	padding: 1rem 1.25rem;
	margin: 0 0 1rem;
	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.panel h2 {
	margin: 0 0 0.75rem;
	padding-bottom: 0.35rem;
	font-size: 1.15rem;
	border-bottom: 2px solid var(--deep);
	overflow-wrap: break-word;
}

.lead {
	margin: 0 0 0.5rem;
}

.tagline {
	margin: 0 0 0.75rem;
	color: var(--muted);
	font-size: 0.85rem;
}

.note {
	margin: 0.75rem 0 0;
	font-size: 0.85rem;
	color: var(--muted);
}

.breadcrumb {
	margin: 0 0 0.75rem;
	font-size: 0.85rem;
	color: var(--muted);
	overflow-wrap: break-word;
}

code {
	padding: 0 0.25rem;
	background: #f3f4f6;
	border-radius: 3px;
	font-size: 0.9em;
}

a {
	color: #1d4ed8;
}

a:hover {
	color: var(--error);
}

/* ---- お知らせ・エラー ---- */

.message {
	margin: 0 0 1rem;
	padding: 0.6rem 1rem;
	border-radius: 8px;
	font-size: 0.9rem;
}

.message--notice {
	background: #e7f5ec;
	border-left: 4px solid var(--notice);
	color: #14532d;
}

.message--error {
	background: #fdecec;
	border-left: 4px solid var(--error);
	color: #7f1d1d;
}

ul.message {
	padding-left: 2rem;
}

/* ---- スレッド一覧 ---- */

.thread-list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.thread-list__item {
	padding: 0.6rem 0;
	border-bottom: 1px solid var(--line);
}

.thread-list__item:first-child {
	padding-top: 0;
}

.thread-list__title {
	font-weight: bold;
	overflow-wrap: break-word;
}

.thread-list__meta {
	display: block;
	font-size: 0.8rem;
	color: var(--muted);
}

.thread-list__count {
	display: inline-block;
	min-width: 4rem;
	margin-right: 0.5rem;
	padding: 0 0.4rem;
	background: #eef2f0;
	border-radius: 4px;
	color: var(--deep);
	text-align: center;
}

/* ---- 投稿 ---- */

.post {
	padding: 0.75rem 0;
	border-bottom: 1px solid var(--line);
}

.post:target {
	background: #fdf8e6;
}

.post__head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 0.5rem;
	margin: 0 0 0.35rem;
	font-size: 0.85rem;
	font-weight: normal;
}

.post__no {
	min-width: 2rem;
	padding: 0 0.35rem;
	background: var(--accent);
	border-radius: 4px;
	color: #ffffff;
	font-weight: bold;
	text-align: center;
	text-decoration: none;
}

.post__name {
	color: var(--deep);
	font-weight: bold;
	overflow-wrap: break-word;
}

.post__date {
	color: var(--muted);
}

.post__body {
	margin: 0;
	overflow-wrap: break-word;
}

.post__tools {
	margin: 0.35rem 0 0;
	font-size: 0.8rem;
	text-align: right;
}

.post.is-deleted .post__no {
	background: var(--muted);
}

.post.is-deleted .post__body {
	color: var(--muted);
	font-size: 0.9rem;
}

/* ---- 書き込みフォーム ---- */

.post-form {
	margin: 0;
}

.post-form__field {
	margin: 0 0 0.9rem;
}

.post-form__field label {
	display: block;
	font-size: 0.85rem;
	font-weight: bold;
	color: var(--deep);
}

.post-form__field input,
.post-form__field textarea {
	display: block;
	width: 100%;
	padding: 0.4rem 0.6rem;
	border: 1px solid var(--line);
	border-radius: 6px;
	font: inherit;
	font-size: 0.95rem;
}

.post-form__field textarea {
	line-height: 1.7;
	resize: vertical;
}

.post-form__field small {
	display: block;
	margin-top: 0.15rem;
	color: var(--muted);
	font-size: 0.75rem;
}

button {
	padding: 0.35rem 1.5rem;
	background: var(--accent);
	border: none;
	border-radius: 6px;
	color: #ffffff;
	cursor: pointer;
	font: inherit;
	font-weight: bold;
}

button:hover {
	background: var(--accent-light);
}

/* ---- ページ送り ---- */

.pager {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 1rem;
	margin: 0.75rem 0 0;
	font-size: 0.9rem;
}

.pager__count {
	color: var(--muted);
}

@media (max-width: 480px) {
	.wrap {
		padding: 0.5rem;
	}

	.panel {
		padding: 0.75rem;
	}

	.post__head {
		gap: 0.35rem;
	}
}