/* =========================================================================
   TechCuki — xanh công nghệ + cam "Cuki"
   ========================================================================= */

:root {
	--tc-primary: #2563EB;
	--tc-primary-dark: #1D4ED8;
	--tc-accent: #F59E0B;
	--tc-accent-dark: #D97706;
	--tc-ink: #0F172A;
	--tc-text: #334155;
	--tc-muted: #64748B;
	--tc-line: #E2E8F0;
	--tc-soft: #F4F7FB;
	--tc-navy: #0B1630;
	--tc-radius: 14px;
	--tc-radius-lg: 20px;
	--tc-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 6px 20px rgba(15, 23, 42, .06);
	--tc-font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body {
	background: #fff;
	color: var(--tc-text);
	font-family: var(--tc-font);
	font-size: 16px;
	line-height: 1.65;
}

h1, h2, h3, h4, h5, h6,
.main-navigation, button, input, select, textarea {
	font-family: var(--tc-font);
}

h1, h2, h3, h4 { color: var(--tc-ink); font-weight: 700; letter-spacing: -.01em; }

a { color: var(--tc-primary); transition: color .15s; }
a:hover, a:focus { color: var(--tc-primary-dark); }

:focus-visible { outline: 2px solid var(--tc-accent); outline-offset: 2px; }

.tc-icon { flex: none; display: block; }

/* GeneratePress container reset */
.one-container .site-content,
.separate-containers .site-main,
.site-content { padding: 0; }
.one-container .container,
.separate-containers .inside-article { background: transparent; }
.site-main { margin: 0; }
.site-content { display: block; }
.site.grid-container { max-width: 1200px; padding: 0 24px 0; }

/* -------------------------------------------------------------------------
   Header
   ---------------------------------------------------------------------- */

.site-header { background: #fff; }

/* Thanh danh mục dưới logo (kiểu TGDĐ), dính trên cùng khi cuộn */
.main-navigation {
	background: rgba(255, 255, 255, .95);
	backdrop-filter: saturate(180%) blur(12px);
	-webkit-backdrop-filter: saturate(180%) blur(12px);
	border-top: 1px solid var(--tc-line);
	border-bottom: 1px solid var(--tc-line);
	position: sticky;
	top: 0;
	z-index: 100;
}
.admin-bar .main-navigation { top: 32px; }
@media (max-width: 782px) { .admin-bar .main-navigation { top: 0; } }
.main-navigation .inside-navigation { padding: 0 12px; }

.inside-header { padding: 14px 24px; }
.site-branding .main-title, .tc-logo { margin: 0; line-height: 1; }
/* Slogan cạnh logo (desktop; header bị ẩn trên mobile) */
.site-branding { display: flex; align-items: center; gap: 18px; }
.tc-slogan {
	margin: 0;
	padding-left: 18px;
	border-left: 1px solid var(--tc-line);
	color: var(--contrast-2, #575760);
	font-size: 15px;
	line-height: 1.3;
	font-weight: 400;
	white-space: nowrap;
}

.tc-logo a {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
}
.tc-logo img { display: block; height: 38px; width: auto; }
.tc-logo__mark { display: block; height: auto; }

.main-navigation ul ul { background: transparent; }
.main-navigation .main-nav ul li a,
.main-navigation .menu-bar-item > a,
.main-navigation .menu-toggle {
	color: var(--tc-text);
	font-size: 14.5px;
	font-weight: 600;
	line-height: 48px;
	padding: 0 12px;
}
.main-navigation .main-nav ul li:not([class*="current-menu-"]):hover > a,
.main-navigation .main-nav ul li:not([class*="current-menu-"]):focus > a,
.main-navigation .menu-bar-item:hover > a { color: var(--tc-primary); background: transparent; }
.main-navigation .main-nav ul li[class*="current-menu-"] > a {
	color: var(--tc-primary);
	background: transparent;
	position: relative;
}
.main-navigation .main-nav > ul > li[class*="current-menu-"] > a::after {
	content: "";
	position: absolute;
	left: 14px;
	right: 14px;
	bottom: 4px;
	height: 3px;
	border-radius: 3px;
	background: var(--tc-accent);
}
.main-navigation ul ul {
	background: #fff;
	border: 1px solid var(--tc-line);
	border-radius: 12px;
	box-shadow: var(--tc-shadow);
	padding: 6px;
}
.main-navigation .main-nav ul ul li a { line-height: 1.4; padding: 10px 12px; border-radius: 8px; }
.main-navigation .main-nav ul ul li a:hover { background: var(--tc-soft); }

.navigation-search input[type="search"] {
	background: #fff;
	color: var(--tc-ink);
	border-bottom: 2px solid var(--tc-primary);
}

/* -------------------------------------------------------------------------
   Thành phần dùng chung
   ---------------------------------------------------------------------- */

.tc-btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 11px 20px;
	border-radius: 10px;
	background: var(--tc-primary);
	color: #fff !important;
	font-weight: 600;
	font-size: 15px;
	text-decoration: none;
	transition: background .15s, transform .15s;
}
.tc-btn:hover { background: var(--tc-primary-dark); transform: translateY(-1px); }
.tc-btn--accent { background: var(--tc-accent); color: var(--tc-ink) !important; }
.tc-btn--accent:hover { background: #FBBF24; }

.tc-badge {
	--c: var(--tc-primary);
	display: inline-block;
	padding: 3px 9px;
	border-radius: 6px;
	background: var(--c);
	color: #fff !important;
	font-size: 11px;
	font-weight: 700;
	letter-spacing: .04em;
	text-transform: uppercase;
	line-height: 1.6;
	text-decoration: none;
	white-space: nowrap;
}
a.tc-badge:hover { filter: brightness(1.1); }

.tc-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	color: var(--tc-muted);
	font-size: 13px;
}
.tc-dot { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: .7; }

.tc-section { margin: 56px 0 0; }
.tc-section__head {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 16px;
	margin-bottom: 20px;
}
.tc-section__head h2 {
	margin: 0;
	font-size: 26px;
	position: relative;
	padding-bottom: 10px;
}
.tc-section__head h2::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 40px;
	height: 4px;
	border-radius: 4px;
	background: var(--tc-accent);
}
.tc-more {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 14px;
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
}

.tc-breadcrumb {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	font-size: 13px;
	color: var(--tc-muted);
	margin-bottom: 14px;
}
.tc-breadcrumb a { color: var(--tc-muted); text-decoration: none; }
.tc-breadcrumb a:hover { color: var(--tc-primary); }

/* Ảnh / placeholder */
.tc-thumb { position: relative; display: block; overflow: hidden; border-radius: var(--tc-radius); aspect-ratio: 16 / 10; background: var(--tc-soft); }
.tc-thumb__img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s; }
.tc-thumb__ph {
	--c: var(--tc-primary);
	position: absolute;
	inset: 0;
	display: grid;
	place-items: center;
	color: rgba(255, 255, 255, .9);
	background:
		radial-gradient(circle at 80% 15%, rgba(245, 158, 11, .35), transparent 40%),
		linear-gradient(135deg, var(--c), var(--tc-navy) 115%);
}
.tc-thumb__ph::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px);
	background-size: 14px 14px;
}

/* Thẻ bài viết */
.tc-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 24px; }
.tc-card .tc-thumb .tc-badge { position: absolute; left: 12px; bottom: 12px; z-index: 1; }
.tc-card:hover .tc-thumb__img { transform: scale(1.04); }
.tc-card__body { padding-top: 14px; }
.tc-card__title { font-size: 17px; line-height: 1.4; margin: 0 0 8px; font-weight: 700; }
.tc-card__title a { color: var(--tc-ink); text-decoration: none; }
.tc-card__title a:hover { color: var(--tc-primary); }

.tc-empty {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 12px;
	padding: 48px 24px;
	border: 2px dashed var(--tc-line);
	border-radius: var(--tc-radius-lg);
	text-align: center;
	color: var(--tc-muted);
	background: var(--tc-soft);
}
.tc-empty p { margin: 0; max-width: 420px; }

/* -------------------------------------------------------------------------
   Trang chủ
   ---------------------------------------------------------------------- */

.tc-home { padding: 28px 0 0; }

.tc-overlay { position: relative; overflow: hidden; border-radius: var(--tc-radius-lg); background: var(--tc-navy); isolation: isolate; }
.tc-overlay__bg { position: absolute; inset: 0; z-index: -1; }
.tc-overlay__bg img, .tc-overlay__bg .tc-thumb__ph { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.tc-overlay__bg::after {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(11, 22, 48, 0) 25%, rgba(11, 22, 48, .88) 100%);
}
.tc-overlay:hover .tc-overlay__bg img { transform: scale(1.03); }
.tc-overlay__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px; color: #fff; }
.tc-overlay__body a { color: #fff; text-decoration: none; }
.tc-overlay .tc-meta { color: rgba(255, 255, 255, .78); }

.tc-hero { display: grid; grid-template-columns: 1.75fr 1fr; gap: 20px; }
.tc-hero__main { min-height: 440px; }
.tc-hero__main .tc-overlay__body { padding: 36px; }
.tc-hero__main .tc-overlay__bg .tc-thumb__ph { place-items: start end; padding: 40px 48px; }
.tc-hero__main .tc-overlay__bg .tc-thumb__ph .tc-icon { width: 180px; height: 180px; opacity: .22; transform: rotate(-8deg); }
.tc-hero__item .tc-overlay__bg .tc-thumb__ph { place-items: start end; padding: 22px 26px; }
.tc-hero__item .tc-overlay__bg .tc-thumb__ph .tc-icon { opacity: .3; }
.tc-hero__title { color: #fff; font-size: 36px; line-height: 1.2; margin: 14px 0 10px; max-width: 620px; }
.tc-hero__excerpt { margin: 0 0 20px; max-width: 520px; color: rgba(255, 255, 255, .85); font-size: 15px; }
.tc-hero__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.tc-hero__side { display: grid; grid-template-rows: 1fr 1fr; gap: 20px; }
.tc-hero__item { min-height: 210px; }
.tc-hero__item .tc-overlay__body { padding: 22px; }
.tc-hero__subtitle { color: #fff; font-size: 19px; line-height: 1.35; margin: 10px 0 0; }

.tc-welcome {
	display: grid;
	grid-template-columns: 1.4fr 1fr;
	align-items: center;
	gap: 24px;
	padding: 56px;
	border-radius: var(--tc-radius-lg);
	color: #fff;
	background:
		radial-gradient(circle at 85% 20%, rgba(245, 158, 11, .35), transparent 35%),
		linear-gradient(135deg, var(--tc-primary), var(--tc-navy) 90%);
	overflow: hidden;
}
.tc-kicker { display: inline-block; padding: 4px 12px; border-radius: 99px; background: rgba(255, 255, 255, .15); font-size: 13px; font-weight: 600; }
.tc-welcome h1 { color: #fff; font-size: 46px; line-height: 1.1; margin: 16px 0 12px; }
.tc-welcome h1 span { color: var(--tc-accent); }
.tc-welcome p { margin: 0; color: rgba(255, 255, 255, .85); font-size: 17px; max-width: 480px; }
.tc-welcome__art { justify-self: center; filter: drop-shadow(0 20px 40px rgba(0, 0, 0, .35)); }

.tc-cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 24px; }
.tc-cat {
	--c: var(--tc-primary);
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	gap: 4px;
	padding: 20px 12px 18px;
	border-radius: var(--tc-radius);
	background: var(--tc-soft);
	border: 1px solid transparent;
	text-decoration: none;
	transition: border-color .15s, background .15s, transform .15s, box-shadow .15s;
}
.tc-cat:hover { background: #fff; border-color: var(--c); transform: translateY(-2px); box-shadow: var(--tc-shadow); }
.tc-cat__icon {
	display: grid;
	place-items: center;
	width: 48px;
	height: 48px;
	margin-bottom: 8px;
	border-radius: 14px;
	color: var(--c);
	background: color-mix(in srgb, var(--c) 14%, #fff);
}
.tc-cat__name { color: var(--tc-ink); font-weight: 700; font-size: 15px; line-height: 1.3; }
.tc-cat__desc { color: var(--tc-muted); font-size: 12.5px; }

.tc-topics { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.tc-topic {
	--c: var(--tc-primary);
	display: flex;
	align-items: center;
	gap: 16px;
	padding: 20px 22px;
	border: 1px solid #E5E7EB;
	border-radius: var(--tc-radius-lg);
	background: #fff;
	color: var(--tc-ink);
	text-decoration: none;
	transition: transform .2s, box-shadow .2s, border-color .2s;
}
.tc-topic:hover { color: var(--tc-ink); transform: translateY(-2px); border-color: color-mix(in srgb, var(--c) 40%, #E5E7EB); box-shadow: 0 12px 28px rgba(15, 23, 42, .08); }
.tc-topic__icon { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 16px; color: var(--c); background: color-mix(in srgb, var(--c) 12%, #fff); }
.tc-topic__img { flex: none; width: 88px; height: 88px; border-radius: 14px; object-fit: cover; background: color-mix(in srgb, var(--c) 12%, #fff); }
.tc-topic__img--icon { object-fit: contain; padding: 6px; box-sizing: border-box; background: none; border-radius: 0; }
.tc-topic__body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.tc-topic__name { font-size: 18px; font-weight: 700; line-height: 1.25; }
.tc-topic__desc { font-size: 13.5px; color: var(--tc-muted); line-height: 1.45; }
.tc-topic__count { margin-top: 4px; font-size: 12.5px; font-weight: 600; color: var(--c); }
.tc-topic__arrow { flex: none; color: #9CA3AF; transition: transform .2s, color .2s; }
.tc-topic:hover .tc-topic__arrow { color: var(--c); transform: translateX(3px); }

.tc-cta {
	position: relative;
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: 24px;
	margin: 56px 0 0;
	padding: 44px 52px;
	border-radius: var(--tc-radius-lg);
	background:
		radial-gradient(circle at 78% 50%, rgba(37, 99, 235, .55), transparent 45%),
		var(--tc-navy);
	color: #fff;
	overflow: hidden;
}
.tc-cta::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px);
	background-size: 18px 18px;
	pointer-events: none;
}
.tc-cta__body { position: relative; }
.tc-cta h2 { color: #fff; font-size: 30px; margin: 0 0 8px; }
.tc-cta h2 span { color: var(--tc-accent); }
.tc-cta p { margin: 0 0 22px; color: rgba(255, 255, 255, .8); max-width: 560px; }
.tc-cta__art { position: relative; margin-right: 20px; }

/* -------------------------------------------------------------------------
   Trang danh mục / danh sách
   ---------------------------------------------------------------------- */

.tc-archive { padding: 28px 0 0; }
.tc-archive__head {
	--c: var(--tc-primary);
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: 24px;
	padding: 32px 40px;
	border-radius: var(--tc-radius-lg);
	background:
		radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--c) 22%, transparent), transparent 55%),
		linear-gradient(90deg, var(--tc-soft), color-mix(in srgb, var(--c) 10%, #fff));
	overflow: hidden;
}
.tc-archive__head h1 { font-size: 38px; margin: 0 0 6px; line-height: 1.15; }
.tc-archive__desc { color: var(--tc-text); max-width: 640px; }
.tc-archive__desc p { margin: 0; }
.tc-archive__art { color: var(--c); opacity: .3; margin-right: 12px; transform: rotate(-8deg); }
.tc-archive__head .search-form { margin-top: 16px; display: flex; gap: 8px; max-width: 480px; }
.tc-archive__head .search-field { flex: 1; border-radius: 10px; border: 1px solid var(--tc-line); padding: 10px 14px; background: #fff; }
.tc-archive__head .search-submit { border-radius: 10px; background: var(--tc-primary); }

.tc-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; }
.tc-chip {
	padding: 8px 18px;
	border-radius: 99px;
	border: 1px solid var(--tc-line);
	background: #fff;
	color: var(--tc-text);
	font-size: 14px;
	font-weight: 500;
	text-decoration: none;
	transition: all .15s;
}
.tc-chip:hover { border-color: var(--tc-primary); color: var(--tc-primary); }
.tc-chip.is-active { background: var(--tc-primary); border-color: var(--tc-primary); color: #fff; }

.tc-archive .tc-grid, .tc-archive .tc-empty { margin-top: 28px; }

.tc-pagination { display: flex; justify-content: center; margin: 44px 0 0; }
.tc-pagination .page-numbers {
	display: inline-grid;
	place-items: center;
	min-width: 40px;
	height: 40px;
	margin: 0 4px;
	padding: 0 6px;
	border-radius: 10px;
	border: 1px solid var(--tc-line);
	color: var(--tc-text);
	font-weight: 600;
	font-size: 14px;
	text-decoration: none;
}
.tc-pagination .page-numbers.dots { border-color: transparent; }
.tc-pagination a.page-numbers:hover { border-color: var(--tc-primary); color: var(--tc-primary); }
.tc-pagination .page-numbers.current { background: var(--tc-primary); border-color: var(--tc-primary); color: #fff; }

/* -------------------------------------------------------------------------
   Bài viết
   ---------------------------------------------------------------------- */

.tc-single { padding: 32px 0 0; }
.tc-single__head { max-width: 860px; margin: 0 auto 32px; }
.tc-single__badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tc-single__title { font-size: 40px; line-height: 1.2; margin: 0 0 20px; }
.tc-author { display: flex; align-items: center; gap: 12px; }
.tc-author__avatar { border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 2px var(--tc-accent); }
.tc-author strong { color: var(--tc-ink); font-size: 15px; }

.tc-single__layout { max-width: 860px; margin: 0 auto; }
.tc-toc {
	margin: 8px 0 32px;
	border-radius: var(--tc-radius);
	background: var(--tc-soft);
	border-left: 3px solid var(--tc-accent);
}
.tc-toc summary {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 14px 18px;
	cursor: pointer;
	list-style: none;
	font-weight: 700;
	color: var(--tc-ink);
	font-size: 15px;
	text-transform: uppercase;
	letter-spacing: .04em;
	user-select: none;
}
.tc-toc summary::-webkit-details-marker { display: none; }
.tc-toc__arrow { margin-left: auto; width: 9px; height: 9px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); transition: transform .2s; }
.tc-toc[open] .tc-toc__arrow { transform: rotate(-135deg); }
.tc-prose .tc-toc ol { margin: 0; padding: 0; list-style: none; }
.tc-prose .tc-toc .tc-toc__list { padding: 0 18px 14px 20px; counter-reset: toc; }
.tc-prose .tc-toc li { margin: 0; padding: 0; }
.tc-prose .tc-toc li::marker { content: none; }
.tc-toc li.tc-toc__l2 { counter-increment: toc; }
.tc-toc a {
	display: flex;
	gap: 8px;
	padding: 7px 0;
	font-size: 15px;
	line-height: 1.45;
	color: var(--tc-text);
	text-decoration: none;
	border-top: 1px solid var(--tc-line);
}
.tc-toc__list > li:first-child > a { border-top: 0; }
.tc-toc__l2 > a { font-weight: 600; color: var(--tc-ink); }
.tc-toc__l2 > a::before { content: counter(toc) "."; color: var(--tc-accent-dark); font-weight: 700; }
.tc-prose .tc-toc ol ol { padding-left: 22px; }
.tc-toc__l3 > a, .tc-toc__l4 > a { font-size: 14px; }
.tc-toc__l3 > a::before, .tc-toc__l4 > a::before { content: "–"; color: var(--tc-muted, #94A3B8); }
.tc-prose .tc-toc a { text-decoration: none; }
.tc-toc a:hover { color: var(--tc-primary); }


.tc-prose { font-size: 17px; line-height: 1.8; color: var(--tc-text); }
.tc-prose h2 { font-size: 28px; margin: 2em 0 .6em; scroll-margin-top: 100px; }
.tc-prose h3 { font-size: 21px; margin: 1.6em 0 .5em; scroll-margin-top: 100px; }
.tc-prose a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--tc-primary) 40%, transparent); text-underline-offset: 3px; }
.tc-prose img { border-radius: var(--tc-radius); }
.tc-prose blockquote {
	margin: 1.6em 0;
	padding: 16px 22px;
	border-left: 4px solid var(--tc-accent);
	background: #FFF8EB;
	border-radius: 0 var(--tc-radius) var(--tc-radius) 0;
	font-style: normal;
	color: var(--tc-ink);
}
.tc-prose code { background: var(--tc-soft); padding: 2px 6px; border-radius: 6px; font-size: .9em; color: #BE185D; }
.tc-prose pre { background: var(--tc-navy); color: #E2E8F0; border-radius: var(--tc-radius); padding: 18px 20px; }
.tc-prose pre code { background: none; color: inherit; padding: 0; }
.tc-prose table { border-collapse: collapse; width: 100%; font-size: 15px; }
.tc-prose th, .tc-prose td { border: 1px solid var(--tc-line); padding: 10px 12px; }
.tc-prose th { background: var(--tc-soft); color: var(--tc-ink); }

.tc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0 0; }
.tc-tags a { padding: 6px 14px; border-radius: 99px; background: var(--tc-soft); color: var(--tc-text); font-size: 13px; text-decoration: none; }
.tc-tags a::before { content: "#"; color: var(--tc-accent-dark); }
.tc-tags a:hover { background: var(--tc-primary); color: #fff; }

.tc-single .comments-area { margin-top: 48px; padding: 0; background: none; }
.tc-related { max-width: 1110px; margin-left: auto; margin-right: auto; }

/* -------------------------------------------------------------------------
   Footer
   ---------------------------------------------------------------------- */

.tc-footer { margin-top: 72px; border-top: 1px solid var(--tc-line); background: var(--tc-soft); }
.tc-footer__inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 44px 24px 32px;
	display: grid;
	grid-template-columns: 1.6fr 1fr 1fr;
	gap: 32px;
}
.tc-footer__tag { margin: 14px 0 2px; color: var(--tc-ink); font-weight: 600; }
.tc-footer__sub { margin: 0; color: var(--tc-muted); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.tc-footer__desc { margin: 14px 0 0; max-width: 380px; color: var(--tc-muted); font-size: 14px; line-height: 1.65; }
.tc-footer h4 { font-size: 14px; margin: 4px 0 12px; text-transform: uppercase; letter-spacing: .06em; }
.tc-footer ul { list-style: none; margin: 0; padding: 0; }
.tc-footer li { margin: 0 0 8px; font-size: 14px; }
.tc-footer li a { color: var(--tc-text); text-decoration: none; }
.tc-footer li a:hover { color: var(--tc-primary); }
.tc-footer__bottom {
	max-width: 1152px;
	margin: 0 auto;
	padding: 16px 0 24px;
	border-top: 1px solid var(--tc-line);
	color: var(--tc-muted);
	font-size: 13px;
}
.site-footer { background: transparent; }

/* -------------------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------------- */

@media (max-width: 1024px) {
	.tc-hero { grid-template-columns: 1fr; }
	.tc-hero__side { grid-template-rows: none; grid-template-columns: 1fr 1fr; }
	.tc-cats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
	body { font-size: 15px; }
	.site.grid-container { padding: 0 16px; }
	.inside-header { padding: 10px 16px; }
	.tc-logo img { height: 30px; }

	.tc-home, .tc-archive, .tc-single { padding-top: 16px; }
	.tc-section { margin-top: 40px; }
	.tc-section__head h2 { font-size: 21px; }

	.tc-hero__main { min-height: 360px; }
	.tc-hero__main .tc-overlay__body { padding: 22px; }
	.tc-hero__title { font-size: 25px; }
	.tc-hero__excerpt, .tc-hero__main .tc-btn { display: none; }

	/* Bài phụ ở hero: dạng danh sách ảnh nhỏ bên trái */
	.tc-hero__side { grid-template-columns: 1fr; gap: 14px; }
	.tc-hero__item { min-height: 0; background: none; border-radius: 0; display: grid; grid-template-columns: 112px 1fr; gap: 14px; align-items: center; }
	.tc-hero__item .tc-overlay__bg { position: relative; inset: auto; z-index: 0; aspect-ratio: 4 / 3; border-radius: 12px; overflow: hidden; }
	.tc-hero__item .tc-overlay__bg::after { display: none; }
	.tc-hero__item .tc-overlay__bg .tc-thumb__ph { place-items: center; padding: 0; }
	.tc-hero__item .tc-overlay__bg .tc-thumb__ph .tc-icon { width: 32px; height: 32px; opacity: .9; }
	.tc-hero__main .tc-overlay__bg .tc-thumb__ph { padding: 24px; }
	.tc-hero__main .tc-overlay__bg .tc-thumb__ph .tc-icon { width: 110px; height: 110px; }
	.tc-hero__item .tc-overlay__body { position: static; padding: 0; color: var(--tc-ink); }
	.tc-hero__item .tc-overlay__body a { color: var(--tc-ink); }
	.tc-hero__subtitle { font-size: 15px; margin-top: 6px; }

	.tc-welcome { grid-template-columns: 1fr; padding: 32px 24px; }
	.tc-welcome h1 { font-size: 32px; }
	.tc-welcome__art { display: none; }

	.tc-cats { gap: 10px; }
	.tc-cat { padding: 14px 6px; }
	.tc-cat__icon { width: 42px; height: 42px; margin-bottom: 4px; }
	.tc-cat__name { font-size: 13px; }
	.tc-cat__desc { display: none; }

	.tc-grid { grid-template-columns: 1fr 1fr; gap: 20px 14px; }
	.tc-card__title { font-size: 15px; }

	/* Bài mới nhất ở trang chủ: dạng danh sách */
	.tc-grid--list-mobile { grid-template-columns: 1fr; gap: 16px; }
	.tc-grid--list-mobile .tc-card { display: grid; grid-template-columns: 112px 1fr; gap: 14px; align-items: start; }
	.tc-grid--list-mobile .tc-thumb { aspect-ratio: 4 / 3; border-radius: 12px; }
	.tc-grid--list-mobile .tc-thumb .tc-badge { display: none; }
	.tc-grid--list-mobile .tc-thumb__ph .tc-icon { width: 32px; height: 32px; }
	.tc-grid--list-mobile .tc-card__body { padding-top: 0; }

	.tc-topics { gap: 12px; }
	.tc-topic { padding: 16px; gap: 14px; }
	.tc-topic__icon { width: 48px; height: 48px; border-radius: 14px; }
	.tc-topic__icon svg { width: 24px; height: 24px; }
	.tc-topic__img { width: 64px; height: 64px; border-radius: 12px; }
	.tc-topic__img--icon { padding: 4px; }
	.tc-topic__name { font-size: 16px; }
	.tc-topic__desc { display: none; }

	.tc-cta { grid-template-columns: 1fr; padding: 28px 24px; margin-top: 40px; }
	.tc-cta h2 { font-size: 22px; }
	.tc-cta__art { position: absolute; right: -24px; top: -16px; opacity: .25; margin: 0; }

	.tc-archive__head { grid-template-columns: 1fr; padding: 24px 20px; }
	.tc-archive__head h1 { font-size: 28px; }
	.tc-archive__art { display: none; }
	.tc-chips { flex-wrap: nowrap; overflow-x: auto; margin-left: -16px; margin-right: -16px; padding: 0 16px 4px; scrollbar-width: none; }
	.tc-chip { white-space: nowrap; }

	.tc-single__title { font-size: 27px; }
	.tc-prose { font-size: 16px; }
	.tc-prose h2 { font-size: 23px; }

	.tc-footer__inner { grid-template-columns: 1fr 1fr; }
	.tc-footer__brand { grid-column: 1 / -1; }
	.tc-footer__bottom { margin: 0 16px; }
}

@media (max-width: 420px) {
	.tc-grid:not(.tc-grid--list-mobile) { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { transition: none !important; }
}

/* Nút menu mobile */
.main-navigation .menu-toggle,
.main-navigation .menu-toggle:hover,
.main-navigation .menu-toggle:focus,
.main-navigation.toggled .menu-toggle { background: transparent; color: var(--tc-ink); }
.main-navigation.toggled .main-nav > ul { background: #fff; border-top: 1px solid var(--tc-line); }

/* Ảnh trong bài không tràn khung */
.tc-single__main { min-width: 0; }
.tc-prose figure { margin: 1.4em auto; text-align: center; }
.tc-prose img { max-width: 100%; height: auto; box-shadow: 0 0 0 1px var(--tc-line); }
.tc-prose figure img { display: block; margin: 0 auto; }

/* Hero: chữ luôn đọc được trên ảnh nhiều chi tiết */
.tc-hero__main .tc-overlay__bg::after {
	background:
		linear-gradient(90deg, rgba(11, 22, 48, .92) 0%, rgba(11, 22, 48, .72) 45%, rgba(11, 22, 48, .15) 100%),
		linear-gradient(180deg, rgba(11, 22, 48, 0) 50%, rgba(11, 22, 48, .6) 100%);
}
.tc-hero--single { grid-template-columns: 1fr; }
.tc-hero--single .tc-hero__main { min-height: 480px; }
@media (max-width: 768px) {
	.tc-hero__main .tc-overlay__bg::after { background: linear-gradient(180deg, rgba(11, 22, 48, .2) 0%, rgba(11, 22, 48, .92) 70%); }
}

/* Thanh danh mục: 1 dòng trên desktop, bỏ mũi tên, menu con hiện khi hover */
@media (min-width: 769px) {
	.main-navigation .inside-navigation { display: flex; align-items: center; flex-wrap: nowrap; }
	.main-navigation .main-nav { flex: 1; min-width: 0; }
	.main-navigation .main-nav > ul { display: flex; flex-wrap: nowrap; }
	.main-navigation .main-nav > ul > li > a { white-space: nowrap; }
	.main-navigation .main-nav ul li.menu-item-has-children > a { padding-right: 12px; }
	.main-navigation .main-nav > ul > li > a .dropdown-menu-toggle { display: none; }
	.main-navigation .menu-bar-items { margin-left: auto; }
}
@media (min-width: 769px) and (max-width: 1180px) {
	.main-navigation .main-nav ul li a,
	.main-navigation .main-nav ul li.menu-item-has-children > a { font-size: 13.5px; padding: 0 8px; }
}

/* Logo vuông trong thanh menu, trượt ra khi thanh menu dính trên cùng */
.tc-navlogo {
	display: flex;
	align-items: center;
	flex: none;
	width: 0;
	opacity: 0;
	overflow: hidden;
	transition: width .2s ease, opacity .2s ease, margin .2s ease;
}
.tc-navlogo img { display: block; }
.tc-navlogo__icon { width: 32px; height: 32px; border-radius: 8px; }
.tc-navlogo__word { display: none !important; }
.main-navigation.is-stuck .tc-navlogo { width: 32px; opacity: 1; margin-right: 10px; }

/* Mobile: 1 thanh duy nhất dính trên cùng: ☰ | logo chữ ở giữa | tìm kiếm */
@media (max-width: 768px) {
	.site-header { display: none; }
	.main-navigation { border-top: 0; }
	.main-navigation .inside-navigation { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; position: relative; min-height: 56px; padding: 0 6px; }
	.main-navigation .menu-toggle { order: 0; flex: none; padding: 0 12px; }
	.main-navigation .menu-toggle .mobile-menu { display: none; }
	.main-navigation .menu-toggle .gp-icon { font-size: 20px; }
	.tc-navlogo, .main-navigation.is-stuck .tc-navlogo { position: absolute; left: 50%; top: 28px; transform: translate(-50%, -50%); width: auto; opacity: 1; margin: 0; }
	.tc-navlogo__icon { display: none !important; }
	.tc-navlogo__word { display: block !important; height: 30px; width: auto; }
	.main-navigation .menu-bar-items { order: 2; margin-left: auto; }
	.main-navigation .main-nav { order: 3; flex-basis: 100%; }
	.main-navigation .menu-toggle,
	.main-navigation .menu-bar-items,
	.main-navigation .menu-bar-item > a { height: 56px; line-height: 56px; display: flex; align-items: center; justify-content: center; }
	.main-navigation .menu-toggle .gp-icon, .main-navigation .menu-bar-item .gp-icon { display: flex; align-items: center; }
	.main-navigation .menu-toggle .gp-icon svg, .main-navigation .menu-bar-item .gp-icon svg { top: 0; }
}

/* Hộp lưu ý nổi bật trong bài (Before you start...) */
.tc-prose .tc-note { background: #FFF8E6; border: 1px solid #FDE7B0; border-left: 4px solid var(--tc-accent); border-radius: 12px; padding: 16px 20px; margin: 24px 0; }
.tc-prose .tc-note > p:first-child { margin: 0 0 8px; font-weight: 700; color: var(--tc-ink); }
.tc-prose .tc-note ul { margin: 0; padding-left: 20px; }
.tc-prose .tc-note li { margin: 4px 0; }
.tc-prose .tc-note > p:last-child:not(:first-child) { margin: 8px 0 0; }

/* Ô danh mục trang chủ: ảnh nền + chữ trắng trên lớp mờ (1.6.3) */
.tc-cat:has(.tc-cat__img) {
	position: relative;
	display: block;
	padding: 0;
	aspect-ratio: 16 / 10;
	max-height: 220px;
	width: 100%;
	overflow: hidden;
	border: 0;
	background: #E2E8F0;
	text-align: left;
}
.tc-cat__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.tc-cat:has(.tc-cat__img)::after {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(15, 23, 42, 0) 35%, rgba(15, 23, 42, .82) 100%);
}
.tc-cat:has(.tc-cat__img) .tc-cat__body {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 1;
	display: flex;
	flex-direction: column;
	gap: 2px;
	padding: 12px 14px;
}
.tc-cat:has(.tc-cat__img) .tc-cat__name { color: #fff; font-size: 16px; }
.tc-cat:has(.tc-cat__img) .tc-cat__desc { color: rgba(255, 255, 255, .82); }
.tc-cat:has(.tc-cat__img):hover { border-color: transparent; }
.tc-cat:has(.tc-cat__img):hover .tc-cat__img { transform: scale(1.05); }
@media (max-width: 768px) {
	.tc-cat:has(.tc-cat__img) { padding: 0; }
	.tc-cat:has(.tc-cat__img) .tc-cat__body { padding: 10px 11px; }
	.tc-cat:has(.tc-cat__img) .tc-cat__name { font-size: 14px; }
	.tc-cat:has(.tc-cat__img) .tc-cat__desc { display: none; }
}

/* Tác giả (1.6.8) */
.tc-avatar { border-radius: 50%; display: block; object-fit: cover; flex: none; }
.tc-avatar--initials { display: grid; place-items: center; color: #fff; font-weight: 700; background: linear-gradient(135deg, #60A5FA, #2563EB); }
.tc-author .tc-avatar { box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--tc-accent); }
.tc-author strong { font-weight: 600; }
.tc-author__name { color: var(--tc-ink); text-decoration: none; font-weight: 700; }
.tc-author__name:hover { color: var(--tc-primary); }
.tc-author__role { color: var(--tc-muted); font-weight: 400; }
.tc-author-box { display: flex; gap: 20px; margin: 36px 0 8px; padding: 22px 24px; border-radius: var(--tc-radius); background: var(--tc-soft); }
.tc-author-box p { margin: 0; }
.tc-author-box__name a { color: var(--tc-ink); font-size: 19px; font-weight: 700; text-decoration: none; }
.tc-author-box__role { color: var(--tc-primary); font-size: 14px; font-weight: 600; margin-top: 2px !important; }
.tc-author-box__bio { color: #334155; font-size: 15px; line-height: 1.6; margin-top: 8px !important; }
.tc-author-box__more { display: inline-flex; align-items: center; gap: 4px; margin-top: 10px; font-size: 14px; font-weight: 600; color: var(--tc-primary); text-decoration: none; }
.tc-archive__role { font-weight: 600; color: var(--tc-primary); }
@media (max-width: 600px) { .tc-author-box { flex-direction: column; gap: 12px; padding: 18px; } }

/* ===== Comments (1.7.8) ===== */
.tc-single .comment-respond { margin: 36px 0 0; padding: 26px 28px 24px; border: 1px solid var(--tc-line); border-radius: var(--tc-radius-lg); background: linear-gradient(180deg, var(--tc-soft), #fff 70%); box-shadow: var(--tc-shadow); position: relative; overflow: hidden; }
.tc-single .comment-respond::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--tc-primary), #60A5FA 70%, var(--tc-accent)); }
.tc-single .comment-reply-title { display: flex; align-items: center; gap: 10px; margin: 0 0 6px; font-size: 22px; color: var(--tc-ink); }
.tc-single .comment-reply-title::before { content: ""; width: 34px; height: 34px; flex: none; border-radius: 10px; background: var(--tc-primary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E") center/18px no-repeat; }
.tc-single .comment-reply-title small { margin-left: auto; font-size: 13px; font-weight: 600; }
.tc-cf-note { margin: 0 0 18px; color: var(--tc-muted); font-size: 14.5px; }
.tc-cf textarea, .tc-cf input[type=text], .tc-cf input[type=email] { width: 100%; padding: 12px 14px; border: 1px solid #CBD5E1; border-radius: 10px; background: #fff; color: var(--tc-ink); font-size: 15px; transition: border-color .15s, box-shadow .15s; }
.tc-cf textarea { min-height: 130px; resize: vertical; line-height: 1.55; }
.tc-cf textarea:focus, .tc-cf input:focus { outline: none; border-color: var(--tc-primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .15); }
.tc-cf p { margin: 0 0 14px; }
.tc-cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tc-cf-row .comment-form-cookies-consent { grid-column: 1 / -1; }
.tc-cf-field label { display: block; margin-bottom: 6px; font-size: 13.5px; font-weight: 600; color: var(--tc-ink); }
.tc-cf-field label span { color: var(--tc-accent-dark); }
.tc-cf .comment-form-cookies-consent { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--tc-muted); }
.tc-cf .comment-form-cookies-consent input { width: 17px; height: 17px; margin: 0; accent-color: var(--tc-primary); }
.tc-cf .form-submit { margin: 4px 0 0; }
.tc-cf .tc-cf-submit { padding: 12px 26px; border: 0; border-radius: 999px; background: var(--tc-primary); color: #fff; font-size: 15px; font-weight: 600; cursor: pointer; box-shadow: 0 6px 16px rgba(37, 99, 235, .25); transition: background .15s, transform .15s; }
.tc-cf .tc-cf-submit:hover, .tc-cf .tc-cf-submit:focus { background: var(--tc-primary-dark); transform: translateY(-1px); }
/* Comment list */
.tc-single .comments-title { font-size: 22px; margin: 0 0 18px; }
.tc-single .comment-list { list-style: none; margin: 0 0 32px; padding: 0; }
.tc-single .comment-list .children { list-style: none; margin: 12px 0 0 28px; padding: 0 0 0 16px; border-left: 2px solid var(--tc-line); }
.tc-single .comment-list li.comment { margin: 0 0 12px; }
.tc-single .comment-body { padding: 16px 18px; border: 1px solid var(--tc-line); border-radius: var(--tc-radius); background: #fff; }
.tc-single .comment-author .avatar { border-radius: 50%; }
.tc-single .comment-author cite, .tc-single .comment-author .fn { color: var(--tc-ink); font-style: normal; font-weight: 700; }
.tc-single .comment-metadata, .tc-single .comment-meta { font-size: 13px; color: var(--tc-muted); }
.tc-single .comment-metadata a { color: var(--tc-muted); }
.tc-single .comment-content { margin-top: 8px; font-size: 15px; }
.tc-single .comment-content p:last-child { margin-bottom: 0; }
.tc-single .bypostauthor > .comment-body { border-color: #BFDBFE; background: #F5F9FF; }
.tc-single .bypostauthor > .comment-body .fn::after { content: "Author"; margin-left: 8px; padding: 2px 8px; border-radius: 999px; background: var(--tc-primary); color: #fff; font-size: 11px; font-weight: 600; vertical-align: 2px; }
.tc-single .reply a, .tc-single .comment-reply-link { font-size: 13px; font-weight: 600; color: var(--tc-primary); text-decoration: none; }
@media (max-width: 600px) {
	.tc-single .comment-respond { padding: 22px 18px 20px; }
	.tc-cf-row { grid-template-columns: 1fr; gap: 0; }
	.tc-single .comment-list .children { margin-left: 8px; padding-left: 12px; }
}