/*
 * 컬럼 목록. 색·글꼴은 관리자에서 감지한 값(CSS 변수)을 쓰고, 값이 없으면 테마 스타일을 상속한다.
 * 구분선·보조 글자색은 글자색에서 투명도로 만들어 어떤 배경에서도 어울리게 한다.
 */
.b2a-col {
	--b2a-line: color-mix(in srgb, currentColor 14%, transparent);
	--b2a-muted: color-mix(in srgb, currentColor 62%, transparent);
	color: var(--b2a-text, inherit);
	font-family: var(--b2a-body-font, inherit);
	text-align: left;
	margin-top: 8px;
	word-break: keep-all;
	overflow-wrap: anywhere;
}
.b2a-col *,
.b2a-col *::before,
.b2a-col *::after { box-sizing: border-box; }
.b2a-col a { color: inherit; text-decoration: none; }

/* 검색 */
.b2a-col__search {
	display: flex;
	gap: 8px;
	max-width: 480px;
	margin: 0 0 32px;
}
.b2a-col__search input {
	flex: 1;
	min-width: 0;
	height: 46px;
	padding: 0 16px;
	border: 1px solid var(--b2a-line);
	border-radius: min(var(--b2a-radius, 4px), 23px);
	background: color-mix(in srgb, #fff 55%, transparent);
	color: inherit;
	font: inherit;
	font-size: 15px;
}
.b2a-col__search input:focus {
	outline: 2px solid var(--b2a-accent, currentColor);
	outline-offset: 1px;
}
.b2a-col__search button {
	flex: none;
	height: 46px;
	padding: 0 24px;
	border: 0;
	border-radius: min(var(--b2a-radius, 4px), 23px);
	background: var(--b2a-btn-bg, var(--b2a-text, #222));
	color: var(--b2a-btn-text, #fff);
	font: inherit;
	font-size: 15px;
	font-weight: 500;
	cursor: pointer;
}
.b2a-col__search button:hover { opacity: .88; }

/* 개수 */
.b2a-col__count {
	margin: 0 0 16px;
	font-size: 14px;
	color: var(--b2a-muted);
}
.b2a-col__count strong { color: var(--b2a-text, inherit); font-weight: 700; }

/* 목록: 2열, 목록이 들어갈 자리가 좁으면 1열 (화면 폭이 아니라 테마가 내준 본문 폭 기준) */
.b2a-col { container-type: inline-size; }
.b2a-col__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	column-gap: 32px;
	border-top: 2px solid var(--b2a-line);
}
@container (max-width: 760px) {
	.b2a-col__grid { grid-template-columns: 1fr; }
}
.b2a-card {
	display: flex;
	gap: 20px;
	align-items: flex-start;
	padding: 24px 0;
	border-bottom: 1px solid var(--b2a-line);
}
.b2a-card__body { flex: 1; min-width: 0; }
.b2a-card__date {
	display: block;
	margin-bottom: 8px;
	font-size: 13px;
	font-weight: 600;
	letter-spacing: .04em;
	color: var(--b2a-accent, var(--b2a-muted));
}
.b2a-card__title {
	margin: 0 0 10px;
	font-family: var(--b2a-head-font, inherit);
	font-size: 19px;
	font-weight: 600;
	line-height: 1.45;
	letter-spacing: -.01em;
	color: var(--b2a-text, inherit);
}
.b2a-card__title a:hover { text-decoration: underline; text-underline-offset: 3px; }
.b2a-card__excerpt {
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	margin: 0 0 14px;
	font-size: 14px;
	line-height: 1.7;
	color: var(--b2a-muted);
}
.b2a-card__more {
	font-size: 13px;
	font-weight: 600;
	color: var(--b2a-accent, inherit) !important;
}
.b2a-card__thumb {
	flex: none;
	width: 140px;
	aspect-ratio: 4 / 3;
	overflow: hidden;
	border-radius: 4px;
	background: color-mix(in srgb, var(--b2a-accent, currentColor) 14%, transparent);
}
.b2a-card__thumb img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform .3s ease;
}
.b2a-card:hover .b2a-card__thumb img { transform: scale(1.04); }

/* 페이지 이동 */
.b2a-col__pager {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 20px;
	margin-top: 40px;
	font-size: 14px;
	color: var(--b2a-muted);
}
.b2a-col__pager a {
	color: var(--b2a-text, inherit);
	font-weight: 600;
}
.b2a-col__pager a:hover { color: var(--b2a-accent, inherit); }

.b2a-col__empty {
	padding: 48px 0;
	text-align: center;
	color: var(--b2a-muted);
	border-top: 2px solid var(--b2a-line);
}

@media (max-width: 560px) {
	.b2a-card { gap: 14px; }
	.b2a-card__thumb { width: 96px; }
	.b2a-card__title { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
	.b2a-card__thumb img { transition: none; }
}

/* ===== 상세 페이지 ===== */
.b2a-article__meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px 12px;
	margin: 0 0 32px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--b2a-line);
	font-size: 14px;
	color: var(--b2a-muted);
}
.b2a-article__meta > * + *::before {
	content: "·";
	margin-right: 12px;
	color: var(--b2a-line);
}
.b2a-article__category {
	font-weight: 600;
	letter-spacing: .04em;
	color: var(--b2a-accent, inherit);
}

/* 본문 + 사이드바: 본문 폭이 넓을 때만 2열 */
.b2a-article__layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 48px;
	align-items: start;
}
@container (min-width: 960px) {
	.b2a-article__layout { grid-template-columns: minmax(0, 1fr) 280px; gap: 64px; }
	.b2a-article__aside { position: sticky; top: calc(var(--b2a-sticky-top, 24px)); }
}
.b2a-article__main { min-width: 0; max-width: 760px; }

/* 목차 */
/* 위쪽 선은 작성 정보 줄의 아래 선을 같이 쓴다 */
.b2a-toc {
	margin: -32px 0 40px;
	border-bottom: 1px solid var(--b2a-line);
}
.b2a-toc summary {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 2px 16px;
	padding: 18px 0;
	cursor: pointer;
	list-style: none;
}
.b2a-toc summary::-webkit-details-marker { display: none; }
.b2a-toc summary::after {
	content: "";
	grid-row: 1 / 3;
	grid-column: 2;
	align-self: center;
	width: 8px;
	height: 8px;
	border-right: 1.5px solid var(--b2a-accent, currentColor);
	border-bottom: 1.5px solid var(--b2a-accent, currentColor);
	transform: rotate(45deg);
	transition: transform .2s ease;
}
.b2a-toc[open] summary::after { transform: rotate(-135deg); }
.b2a-toc__label {
	font-family: var(--b2a-head-font, inherit);
	font-size: 18px;
	font-weight: 700;
	color: var(--b2a-text, inherit);
}
.b2a-toc__current {
	overflow: hidden;
	white-space: nowrap;
	text-overflow: ellipsis;
	font-size: 13px;
	color: var(--b2a-accent, var(--b2a-muted));
}
.b2a-toc ol { margin: 0 0 18px; padding: 0; list-style: none; }
.b2a-toc__item a {
	display: block;
	padding: 8px 0 8px 14px;
	border-left: 2px solid var(--b2a-line);
	font-size: 14px;
	color: var(--b2a-muted) !important;
}
.b2a-toc__item--h3 a { padding-left: 28px; font-size: 13px; }
.b2a-toc__item a:hover,
.b2a-toc__item a.is-active {
	border-left-color: var(--b2a-accent, currentColor);
	color: var(--b2a-text, inherit) !important;
}

/* 본문 타이포그래피 */
.b2a-article__body {
	font-size: 17px;
	line-height: 1.9;
	color: var(--b2a-text, inherit);
}
.b2a-article__body > * { margin: 0 0 1.1em; }
.b2a-article__body h2,
.b2a-article__body h3,
.b2a-article__body h4 {
	margin: 2.2em 0 .8em;
	font-family: var(--b2a-head-font, inherit);
	font-weight: 700;
	line-height: 1.45;
	color: var(--b2a-text, inherit);
	scroll-margin-top: calc(var(--b2a-sticky-top, 24px) + 16px);
}
.b2a-article__body h2 { font-size: 1.45em; }
.b2a-article__body h3 { font-size: 1.2em; }
.b2a-article__body h4 { font-size: 1.05em; }
.b2a-article__body figure { margin: 1.6em 0; }
.b2a-article__body img,
.b2a-article__body video {
	display: block;
	max-width: 100%;
	height: auto;
	margin: 0 auto;
	border-radius: 4px;
}
.b2a-article__body figcaption {
	margin-top: 8px;
	font-size: 13px;
	text-align: center;
	color: var(--b2a-muted);
}
.b2a-article__body blockquote {
	margin: 1.6em 0;
	padding: 4px 0 4px 20px;
	border-left: 3px solid var(--b2a-accent, currentColor);
	font-family: var(--b2a-head-font, inherit);
	font-size: 1.1em;
	font-weight: 600;
	line-height: 1.6;
}
.b2a-article__body a { color: var(--b2a-accent, inherit); text-decoration: underline; text-underline-offset: 3px; }
.b2a-article__body hr { border: 0; border-top: 1px solid var(--b2a-line); margin: 2.4em 0; }
.b2a-article__body .content-table-wrap { overflow-x: auto; }
.b2a-article__body table { width: 100%; border-collapse: collapse; font-size: 15px; }
.b2a-article__body th,
.b2a-article__body td { padding: 10px 12px; border: 1px solid var(--b2a-line); text-align: left; }
.b2a-article__body .text-align-center { text-align: center; }
.b2a-article__body .text-align-right { text-align: right; }
/* blog2ai가 원문 문단 간격을 옮겨 오는 클래스 */
.b2a-article__body .source-gap-before-1 { margin-top: 2em; }
.b2a-article__body .source-gap-before-2 { margin-top: 4em; }
.b2a-article__body .source-gap-before-3 { margin-top: 6em; }
.b2a-article__body .source-gap-before-4 { margin-top: 8em; }

/* 사이드바 */
.b2a-article__aside {
	padding-top: 20px;
	border-top: 2px solid var(--b2a-text, currentColor);
}
.b2a-article__aside-title {
	margin: 0 0 8px;
	font-family: var(--b2a-head-font, inherit);
	font-size: 17px;
	font-weight: 700;
}
.b2a-article__aside ul { margin: 0; padding: 0; list-style: none; }
.b2a-article__aside li { padding: 14px 0; border-bottom: 1px solid var(--b2a-line); }
.b2a-article__aside time {
	display: block;
	margin-bottom: 4px;
	font-size: 12px;
	font-weight: 600;
	color: var(--b2a-accent, var(--b2a-muted));
}
.b2a-article__aside li a {
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	font-size: 15px;
	font-weight: 500;
	line-height: 1.5;
}
.b2a-article__aside li a:hover { color: var(--b2a-accent, inherit); }
.b2a-article__all {
	display: inline-block;
	margin-top: 18px;
	font-size: 14px;
	font-weight: 600;
	color: var(--b2a-accent, inherit) !important;
}

/* 하단 안내 */
.b2a-article__cta {
	margin-top: 72px;
	padding: 40px 24px;
	border-top: 1px solid var(--b2a-line);
	border-bottom: 1px solid var(--b2a-line);
	background: color-mix(in srgb, var(--b2a-accent, currentColor) 6%, transparent);
	text-align: center;
}
.b2a-article__cta p {
	margin: 0 0 16px;
	font-family: var(--b2a-head-font, inherit);
	font-size: 19px;
	font-weight: 600;
}
.b2a-button {
	display: inline-flex;
	align-items: center;
	height: 48px;
	padding: 0 28px;
	border-radius: min(var(--b2a-radius, 4px), 24px);
	background: var(--b2a-btn-bg, var(--b2a-text, #222));
	color: var(--b2a-btn-text, #fff) !important;
	font-size: 15px;
	font-weight: 500;
}
.b2a-button:hover { opacity: .88; }