/*
 * Site Boardroom - trang bai.
 *
 * Mot cot 740px, chu than bai PT Serif 18px/1.78. Moi khoi san pham mo bang
 * mot so thu tu mau vang dong va mot dai so lieu, dong bang khung "Who it is
 * for / Skip it if" vien trai mau vang dong - do la nuoc di rieng cua site30,
 * xem inc/article.php.
 */

.article-wrap { padding-bottom: 20px; }

.article {
	max-width: var(--col);
	margin: 0 auto;
	padding: 34px 0 10px;
}

/* ------------------------------------------------------------------ */
/* Dau bai                                                             */
/* ------------------------------------------------------------------ */

.art-head { padding-bottom: 22px; border-bottom: 2px solid var(--ink); }
.art-title {
	margin: 4px 0 0; font-size: 42px; line-height: 1.1;
	font-weight: 800; letter-spacing: -0.03em;
}
.dateline {
	margin: 14px 0 0; font-family: var(--sans); font-size: 12px;
	letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
}
.dateline time { text-transform: none; letter-spacing: 0.02em; }

.art-shot { margin: 26px 0 0; border: 1px solid var(--line); background: #fff; }
.art-shot img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; padding: 24px; }
.art-shot figcaption {
	border-top: 1px solid var(--line); background: var(--surface);
	padding: 10px 14px; font-family: var(--sans); font-size: 12px;
	letter-spacing: 0.04em; color: var(--muted);
}

/* ------------------------------------------------------------------ */
/* "On the board" - bang dang ky cac model o dau bai                   */
/* ------------------------------------------------------------------ */

.art-board { margin: 28px 0 6px; background: var(--surface); border-top: 3px solid var(--accent); padding: 20px 22px 6px; }
.board-head {
	margin: 0; font-family: var(--sans); font-weight: 900; font-size: 19px;
	letter-spacing: 0.02em; text-transform: uppercase; color: var(--ink);
}
.board-note { margin: 4px 0 16px; font-size: 14px; color: var(--muted); }

.board-list { list-style: none; margin: 0; padding: 0; }
.board-item {
	display: flex; gap: 16px; align-items: flex-start;
	padding: 14px 0; border-top: 1px solid var(--line);
}
.board-shot {
	flex: 0 0 74px; display: block; background: #fff;
	border: 1px solid var(--line);
}
.board-shot img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; padding: 6px; }

.board-item-first { display: block; padding-top: 0; border-top: 0; }
.board-item-first .board-shot {
	width: 100%; margin-bottom: 14px;
}
.board-item-first .board-shot img { aspect-ratio: 16 / 9; padding: 18px; }

.board-body { display: block; min-width: 0; flex: 1 1 auto; }
.board-rank {
	display: inline-block; margin-right: 8px;
	font-family: var(--sans); font-weight: 900; font-size: 13px;
	color: var(--ink-deep); background: var(--accent); padding: 1px 6px;
	vertical-align: 2px;
}
.board-link {
	font-family: var(--sans); font-weight: 700; font-size: 16px; line-height: 1.3;
	color: var(--ink); text-decoration: none;
}
.board-link:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.board-item-first .board-link { font-size: 19px; }
.board-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 7px; }

/* ------------------------------------------------------------------ */
/* Than bai                                                            */
/* ------------------------------------------------------------------ */

.article-body {
	font-size: 18px;
	line-height: 1.78;
	color: var(--body);
}
.article-body p { margin: 0 0 1.15em; }
.article-body a { color: var(--ink); text-decoration-color: var(--accent); }
.article-body a:hover { color: var(--accent-ink); }

.br-standfirst {
	margin: 26px 0 8px; padding-left: 20px; border-left: 3px solid var(--accent);
}
.br-standfirst p { font-size: 20px; line-height: 1.6; color: var(--ink); }
.br-standfirst p:last-child { margin-bottom: 0; }

.br-h2 {
	margin: 2.2em 0 0.7em; font-size: 27px; line-height: 1.2;
	font-weight: 800; letter-spacing: -0.02em; scroll-margin-top: 16px;
}
.br-h2-intro, .br-h2-guide, .br-h2-faq, .br-h2-body {
	padding-bottom: 10px; border-bottom: 2px solid var(--ink);
}

.br-model {
	display: flex; gap: 14px; align-items: baseline;
	margin-top: 2.6em; padding-top: 22px; border-top: 3px double var(--line);
}
.br-rank {
	flex: 0 0 auto; font-family: var(--sans); font-weight: 900; font-size: 15px;
	color: var(--ink-deep); background: var(--accent); padding: 3px 8px;
	letter-spacing: 0.02em;
}
.br-model-name { flex: 1 1 auto; min-width: 0; }

.br-ledger {
	display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
	margin: 0 0 1.4em; padding: 12px 16px;
	background: var(--surface); border-left: 3px solid var(--ink);
}
.ledger-brand {
	font-family: var(--sans); font-weight: 800; font-size: 11px;
	letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-ink);
}
.ledger-buy {
	margin-left: auto;
	font-family: var(--sans); font-weight: 700; font-size: 12px;
	letter-spacing: 0.08em; text-transform: uppercase;
	color: #fff; background: var(--ink); padding: 8px 14px; text-decoration: none;
	border-bottom: 3px solid var(--accent);
}
.ledger-buy:hover { background: var(--accent); color: var(--ink-deep); }

/* ------------------------------------------------------------------ */
/* NUOC DI RIENG: cap dong "Who it is for" / "Skip it if"              */
/* ------------------------------------------------------------------ */

.br-fit {
	margin: 1.6em 0 0.4em;
	border-left: 5px solid var(--accent);
	background: linear-gradient(90deg, var(--accent-soft), #fff 70%);
	padding: 16px 18px 12px;
}
.br-fit-row { display: grid; grid-template-columns: 112px 1fr; gap: 4px 16px; margin: 0 0 10px; }
.br-fit-label {
	font-family: var(--sans); font-weight: 800; font-size: 11px;
	letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-ink);
	padding-top: 5px;
}
.br-fit-skip .br-fit-label { color: var(--muted); }
.br-fit-text { font-size: 16px; line-height: 1.6; color: var(--body); }
.br-fit-skip { margin-bottom: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
.br-fit-src {
	margin: 0; font-family: var(--sans); font-size: 11px;
	letter-spacing: 0.03em; color: var(--muted);
}

/* ------------------------------------------------------------------ */
/* Bang so sanh                                                        */
/* ------------------------------------------------------------------ */

.br-tablewrap { overflow-x: auto; margin: 0 0 1.6em; border: 1px solid var(--line); }
.br-tablewrap:focus-visible { outline: 3px solid var(--accent); outline-offset: 0; }

table.br-compare {
	width: 100%; min-width: 560px; border-collapse: collapse;
	font-family: var(--sans); font-size: 14px; background: #fff;
}
table.br-compare th {
	background: var(--ink-deep); color: #fff; text-align: left;
	font-weight: 700; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
	padding: 11px 12px; vertical-align: bottom;
}
table.br-compare td {
	padding: 11px 12px; border-top: 1px solid var(--line); vertical-align: top; color: var(--body);
}
table.br-compare tbody tr:nth-child(even) { background: var(--surface); }
table.br-compare tbody td:first-child { font-weight: 700; color: var(--ink); }

/* ------------------------------------------------------------------ */
/* Anh trong bai, danh sach uu / nhuoc                                 */
/* ------------------------------------------------------------------ */

.article-body figure {
	margin: 1.6em 0; border: 1px solid var(--line); background: #fff;
}
.article-body figure img {
	width: 100%; aspect-ratio: 4 / 3; object-fit: contain; padding: 22px;
}
.article-body figcaption {
	border-top: 1px solid var(--line); background: var(--surface);
	padding: 9px 14px; font-family: var(--sans); font-size: 12px;
	letter-spacing: 0.04em; color: var(--muted);
}

.article-body p.best-for {
	margin: 0 0 1em; padding: 9px 14px; background: var(--surface);
	font-family: var(--sans); font-size: 15px; color: var(--ink);
	border-left: 3px solid var(--accent);
}
.article-body p.best-for strong {
	font-weight: 800; font-size: 11px; letter-spacing: 0.12em;
	text-transform: uppercase; color: var(--accent-ink);
}

.article-body p.pc-head {
	margin: 1.2em 0 0.4em;
	font-family: var(--sans); font-weight: 800; font-size: 11px;
	letter-spacing: 0.14em; text-transform: uppercase;
}
.article-body p.pc-head strong { font-weight: 800; }
.article-body p.pc-pro { color: var(--ink); }
.article-body p.pc-con { color: var(--muted); }

.article-body ul, .article-body ol { margin: 0 0 1.3em; padding-left: 0; list-style: none; }
.article-body ul li, .article-body ol li {
	position: relative; padding: 4px 0 4px 26px; font-size: 16.5px;
}
.article-body ul li::before {
	content: ""; position: absolute; left: 4px; top: 15px;
	width: 9px; height: 2px; background: var(--accent);
}
.article-body ol { counter-reset: brol; }
.article-body ol li { counter-increment: brol; }
.article-body ol li::before {
	content: counter( brol ) "."; position: absolute; left: 0; top: 4px;
	font-family: var(--sans); font-weight: 800; font-size: 13px; color: var(--accent-ink);
}
.article-body p.pc-con + ul li::before { background: var(--line); }

.article-body h3 {
	margin: 1.8em 0 0.5em; font-size: 20px; font-weight: 700; letter-spacing: -0.01em;
}

/* ------------------------------------------------------------------ */
/* FAQ - moi cap hoi dap mot the details                               */
/* ------------------------------------------------------------------ */

.br-faq { border-top: 1px solid var(--line); margin-bottom: 1.6em; }
.qa { border-bottom: 1px solid var(--line); }
.qa summary {
	list-style: none; cursor: pointer; padding: 14px 34px 14px 0; position: relative;
	font-family: var(--sans); font-weight: 700; font-size: 17px; line-height: 1.4; color: var(--ink);
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
	content: "+"; position: absolute; right: 4px; top: 11px;
	font-family: var(--sans); font-weight: 700; font-size: 22px; color: var(--accent-ink);
}
.qa[open] summary::after { content: "\2212"; }
.qa summary:hover { color: var(--accent-ink); }
.qa-body { padding: 0 0 8px; }
.qa-body p { font-size: 16.5px; }
.qa-body p:last-child { margin-bottom: 0.8em; }

/* ------------------------------------------------------------------ */
/* Cuoi bai                                                            */
/* ------------------------------------------------------------------ */

.art-foot { margin-top: 36px; padding-top: 18px; border-top: 3px double var(--line); }
.art-source { margin: 0; font-size: 14px; color: var(--muted); }
.art-tags { margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.art-tags span {
	font-family: var(--sans); font-weight: 800; font-size: 11px;
	letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-ink);
}
.art-tags a {
	font-family: var(--sans); font-size: 13px; text-decoration: none;
	border: 1px solid var(--line); padding: 5px 10px; color: var(--ink);
}
.art-tags a:hover { border-color: var(--accent); background: var(--accent-soft); }

/* Dai "doc tiep" cuoi trang bai rong bang ca trang, khong theo cot 740px. */
.band-next { max-width: var(--wrap); margin: 40px auto 0; }

/* ------------------------------------------------------------------ */
/* Be dan lai                                                          */
/* ------------------------------------------------------------------ */

@media (max-width: 620px) {
	.article { padding-top: 24px; }
	.art-title { font-size: 28px; }
	.article-body { font-size: 17px; }
	.br-standfirst { padding-left: 14px; }
	.br-standfirst p { font-size: 18px; }
	.br-h2 { font-size: 22px; }
	.br-model { gap: 10px; flex-wrap: wrap; }
	.br-ledger { padding: 12px; gap: 10px 14px; }
	.ledger-buy { margin-left: 0; width: 100%; text-align: center; }
	.br-fit-row { grid-template-columns: 1fr; gap: 2px; }
	.br-fit-label { padding-top: 0; }
	.art-board { padding: 16px 14px 4px; }
	.board-shot { flex-basis: 58px; }
	.article-body figure img { padding: 14px; }
	table.br-compare { min-width: 480px; font-size: 13px; }
}

/*
 * Chu trong nut mua.
 *
 * Luat `.article-body a` co do uu tien 0,1,1, cao hon luat `.ledger-buy` (0,1,0),
 * nen neu khong co dong nay thi chu nut lay mau nhan - dung bang mau
 * nen cua chinh no, va nut thanh mot khoi mau dac khong doc duoc chu.
 * Do duoc truoc khi sua: tuong phan 1,00.
 */
.article-body a.ledger-buy { color: #fff; }