/**
 * 게시글 상세 — board_post 단일 화면.
 * 본문이 gnuboard 에서 옮겨온 임의의 HTML(문단·줄바꿈·이미지·링크)이라
 * 기본 태그를 폭넓게 잡아둔다.
 */
.board-single {
	max-width: 900px;
	margin: 0 auto;
	padding: 0 0 4rem;
}

/* ------------------------------ 머리말 ------------------------------ */
.board-single-header {
	padding: 2.5rem 0 1.5rem;
	margin-bottom: 2rem;
	border-bottom: 1px solid #e5e5e5;
}

.board-single-cat {
	display: inline-block;
	margin-bottom: 0.9rem;
	padding: 0.3rem 0.75rem;
	border: 1px solid #e0e0da;
	border-radius: 999px;
	font-size: 0.78rem;
	font-weight: 600;
	color: #666;
	text-decoration: none;
	transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.board-single-cat:hover {
	border-color: #111;
	background: #111;
	color: #fff;
}

/* 기존에는 18px / weight 400 이라 본문과 구분되지 않았다. */
.board-single-title {
	margin: 0 0 1rem;
	font-size: clamp(1.35rem, 3.2vw, 1.75rem);
	font-weight: 700;
	line-height: 1.4;
	color: #111;
	letter-spacing: -0.02em;
	word-break: keep-all;
}

.board-single-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem 1rem;
	font-size: 0.83rem;
	color: #999;
}

.board-single-meta time {
	font-variant-numeric: tabular-nums;
}

.board-single-author {
	font-weight: 600;
	color: #666;
}

.board-single-hit {
	display: inline-flex;
	align-items: center;
	gap: 0.25rem;
	font-variant-numeric: tabular-nums;
}

.board-single-hit svg {
	color: #c4c4bc;
}

/* ------------------------------ 본문 ------------------------------ */
.board-single-content {
	font-size: 1rem;
	line-height: 1.9;
	color: #333;
	word-break: keep-all;
}

.board-single-content > *:first-child {
	margin-top: 0;
}

.board-single-content > *:last-child {
	margin-bottom: 0;
}

.board-single-content p {
	margin: 0 0 1.35rem;
}

.board-single-content h2,
.board-single-content h3,
.board-single-content h4 {
	margin: 2.25rem 0 0.9rem;
	font-weight: 700;
	color: #111;
	letter-spacing: -0.01em;
}

.board-single-content h2 { font-size: 1.2rem; }
.board-single-content h3 { font-size: 1.08rem; }
.board-single-content h4 { font-size: 1rem; }

.board-single-content ul,
.board-single-content ol {
	margin: 0 0 1.35rem;
	padding-left: 1.4rem;
}

.board-single-content li {
	margin-bottom: 0.45rem;
}

/* 옮겨온 글에 큰 사진이 자주 들어간다 */
.board-single-content img {
	display: block;
	max-width: 100%;
	height: auto;
	margin: 1.5rem auto;
	border-radius: 8px;
}

.board-single-content a {
	color: #111;
	text-decoration: underline;
	text-underline-offset: 3px;
	/* 유튜브 주소 같은 긴 링크가 넘치지 않도록 */
	overflow-wrap: anywhere;
}

.board-single-content a:hover {
	color: #555;
}

.board-single-content blockquote {
	margin: 1.5rem 0;
	padding: 1rem 1.35rem;
	border-left: 3px solid #111;
	border-radius: 0 8px 8px 0;
	background: #fafaf8;
	color: #444;
}

/* 옮겨온 표는 폭이 제각각이라 넘치면 가로로 스크롤시킨다 */
.board-single-content table {
	display: block;
	width: 100%;
	overflow-x: auto;
	border-collapse: collapse;
	margin: 1.5rem 0;
	font-size: 0.92rem;
}

.board-single-content th,
.board-single-content td {
	padding: 0.7rem 0.9rem;
	border: 1px solid #e8e8e4;
	text-align: left;
}

.board-single-content th {
	background: #f4f4f1;
	font-weight: 700;
	color: #111;
}

.board-single-content iframe {
	max-width: 100%;
}

.board-single-content hr {
	margin: 2rem 0;
	border: 0;
	border-top: 1px solid #eee;
}

/* --------------------------- 이전 / 다음 글 --------------------------- */
.board-single-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.75rem;
	margin-top: 3rem;
	padding-top: 2rem;
	border-top: 1px solid #e5e5e5;
}

.board-single-nav-item {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
	min-width: 0;
	padding: 1rem 1.25rem;
	border: 1px solid #e8e8e4;
	border-radius: 10px;
	color: inherit;
	text-decoration: none;
	transition: border-color 0.15s ease, background-color 0.15s ease;
}

.board-single-nav-item:hover {
	border-color: #111;
	background: #fafaf8;
}

/* 이전 글이 없으면 다음 글이 오른쪽에 붙게 한다 */
.board-single-nav-item.is-next:only-child {
	grid-column: 2;
}

.board-single-nav-item.is-next {
	text-align: right;
}

.board-single-nav-label {
	display: inline-flex;
	align-items: center;
	gap: 0.25rem;
	font-size: 0.78rem;
	font-weight: 600;
	color: #999;
}

.board-single-nav-item.is-next .board-single-nav-label {
	justify-content: flex-end;
}

.board-single-nav-title {
	font-size: 0.9rem;
	line-height: 1.5;
	color: #333;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.board-single-nav-item:hover .board-single-nav-title {
	color: #111;
}

/* ------------------------------ 목록으로 ------------------------------ */
.board-single-footer {
	margin-top: 2rem;
	text-align: center;
}

.board-back-link {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.75rem 1.5rem;
	border-radius: 999px;
	background: #111;
	color: #fff;
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	transition: background-color 0.15s ease;
}

.board-back-link:hover {
	background: #333;
	color: #fff;
}

/* 아카이브 하단의 '전체 게시판 보기' */
.board-all-link {
	margin-top: 2rem;
}

/* ------------------------------ 반응형 ------------------------------ */
@media (max-width: 600px) {
	.board-single-header {
		padding: 1.75rem 0 1.25rem;
		margin-bottom: 1.5rem;
	}

	.board-single-content {
		font-size: 0.95rem;
	}

	.board-single-nav {
		grid-template-columns: 1fr;
		margin-top: 2.25rem;
		padding-top: 1.5rem;
	}

	.board-single-nav-item.is-next:only-child {
		grid-column: 1;
	}

	.board-single-nav-item.is-next {
		text-align: left;
	}

	.board-single-nav-item.is-next .board-single-nav-label {
		justify-content: flex-start;
	}

	.board-back-link {
		width: 100%;
		justify-content: center;
	}
}

/* ---------------------------- 첨부파일 목록 ---------------------------- */
/* 원본 사이트에서 옮겨온 첨부는 본문 끝에 이 목록으로 붙는다. */
.board-single-content .board-files {
	margin: 2rem 0 0;
	padding: 1.25rem 1.5rem;
	border: 1px solid #e8e8e4;
	border-radius: 10px;
	background: #fafaf8;
	list-style: none;
}

.board-single-content .board-files::before {
	content: "첨부파일";
	display: block;
	margin-bottom: 0.75rem;
	font-size: 0.82rem;
	font-weight: 700;
	color: #999;
}

.board-single-content .board-files li {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 0.5rem;
	margin: 0;
	padding: 0.55rem 0;
	border-top: 1px solid #ececE8;
}

.board-single-content .board-files li:first-of-type {
	border-top: 0;
	padding-top: 0;
}

.board-single-content .board-files a {
	font-size: 0.92rem;
	font-weight: 600;
	color: #111;
	text-decoration: none;
	overflow-wrap: anywhere;
}

.board-single-content .board-files a::before {
	content: "↓";
	margin-right: 0.4rem;
	color: #aaa;
	font-weight: 400;
}

.board-single-content .board-files a:hover {
	text-decoration: underline;
	text-underline-offset: 3px;
}

.board-file-size {
	font-size: 0.78rem;
	color: #aaa;
	white-space: nowrap;
}

/* ------------------------- 게시판별 입력칸 표시 ------------------------- */
/* 사진 칸으로 올린 사진들 */
.board-photos {
	display: grid;
	/* 항상 한 칸. minmax(0,1fr) 이어야 내용이 칸을 밀어내지 않는다 */
	grid-template-columns: minmax(0, 1fr);
	gap: 0.75rem;
	margin: 1.75rem 0 0;
	padding: 0;
	list-style: none;
}

.board-photos img {
	display: block;
	width: 100%;
	height: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	margin: 0;
	border-radius: 8px;
	transition: opacity 0.15s ease;
}

.board-photos a:hover img {
	opacity: 0.88;
}

/* 주보 이미지 · 주보 보기 링크 */
.board-extra-image {
	margin: 1.75rem 0 0;
}

.board-extra-image img {
	display: block;
	width: 100%;
	height: auto;
	margin: 0;
	border-radius: 8px;
}

.board-extra-links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin: 1.75rem 0 0;
}

/*
 * 본문 안에서는 .board-single-content a { color:#111 } 가 명시도(0,1,1)로
 * .board-link-btn(0,1,0) 을 이겨, 검정 배경에 검정 글자가 되어 글자가 보이지
 * 않았다. 같은 명시도로 올려 둔다.
 */
.board-link-btn,
.board-single-content .board-link-btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.7rem 1.35rem;
	border-radius: 999px;
	background: #111;
	color: #fff;
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	transition: background-color 0.15s ease;
}

.board-link-btn:hover,
.board-single-content .board-link-btn:hover {
	background: #333;
	color: #fff;
}

.board-link-btn svg {
	transition: transform 0.15s ease;
}

.board-link-btn:hover svg {
	transform: translateX(2px);
}

@media (max-width: 600px) {
	.board-photos {
		grid-template-columns: repeat(2, 1fr);
		gap: 0.5rem;
	}

	.board-link-btn {
		width: 100%;
		justify-content: center;
	}
}