/* ===== Variables ===== */
:root{
	--blackcat-serif: 'Georgia', 'Times New Roman', serif;
	--blackcat-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
	--blackcat-primary: #2563eb;
	--blackcat-primary-light: #3b82f6;
	--blackcat-primary-dark: #1d4ed8;
	--blackcat-accent: #7c3aed;
	--blackcat-bg: #f0f4f8;
	--blackcat-surface: #ffffff;
	--blackcat-surface-raised: #f8fafc;
	--blackcat-text: #0f172a;
	--blackcat-text-soft: #475569;
	--blackcat-muted: #94a3b8;
	--blackcat-border: #e2e8f0;
	--blackcat-border-soft: #f1f5f9;
	--blackcat-radius: 16px;
	--blackcat-radius-lg: 20px;
	--blackcat-shadow:
		0 1px 2px rgba(15,23,42,.04),
		0 4px 8px rgba(15,23,42,.06),
		0 12px 24px rgba(15,23,42,.06);
	--blackcat-shadow-hover:
		0 2px 4px rgba(15,23,42,.06),
		0 8px 16px rgba(15,23,42,.08),
		0 24px 48px rgba(15,23,42,.1);
	--blackcat-sky-1: #dbeafe;
	--blackcat-sky-2: #f0f4f8;
	--blackcat-sky-3: #e0e7ff;
	--blackcat-header-h: 64px;
	--blackcat-gradient: linear-gradient(135deg, var(--blackcat-primary), var(--blackcat-accent));
}

/* ===== Sky gradient background ===== */
body{
	background: linear-gradient(160deg, var(--blackcat-sky-1) 0%, var(--blackcat-sky-2) 50%, var(--blackcat-sky-3) 100%);
	background-attachment: fixed;
	transition: background .6s ease;
}

/* ===== Dark mode ===== */
body.blackcat-dark{
	--blackcat-primary: #3b82f6;
	--blackcat-primary-light: #60a5fa;
	--blackcat-primary-dark: #2563eb;
	--blackcat-accent: #8b5cf6;
	--blackcat-bg: #020617;
	--blackcat-surface: #0f172a;
	--blackcat-surface-raised: #1e293b;
	--blackcat-text: #f1f5f9;
	--blackcat-text-soft: #cbd5e1;
	--blackcat-muted: #64748b;
	--blackcat-border: #1e293b;
	--blackcat-border-soft: #0f172a;
	--blackcat-shadow:
		0 1px 2px rgba(0,0,0,.2),
		0 4px 8px rgba(0,0,0,.3),
		0 12px 24px rgba(0,0,0,.3);
	--blackcat-shadow-hover:
		0 2px 4px rgba(0,0,0,.25),
		0 8px 16px rgba(0,0,0,.35),
		0 24px 48px rgba(0,0,0,.4);
	--blackcat-sky-1: #020617;
	--blackcat-sky-2: #0f172a;
	--blackcat-sky-3: #1e1b4b;
}

body.blackcat-dark .blackcat-reading-progress{
	background: rgba(15,23,42,.8);
}

/* ===== Base ===== */
body{
	font-family: var(--blackcat-sans);
	color: var(--blackcat-text);
	line-height: 1.6;
	margin: 0;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.blackcat-boxed{
	flex: 1 0 auto;
}

.blackcat-footer{
	margin-top: auto;
}

h1, h2, h3, h4, h5, h6{
	font-weight: 700;
	line-height: 1.2;
}

a{
	color: var(--blackcat-primary);
	text-decoration: none;
}

body.blackcat-dark a{
	color: var(--blackcat-primary-light);
}

a:hover{
	color: var(--blackcat-primary-dark);
	opacity: 1;
}

img{
	max-width: 100%;
	height: auto;
}

/* ===== Layout ===== */
.blackcat-container{
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 16px;
}

.blackcat-boxed{
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 16px;
}

/* ===== Reading progress ===== */
.blackcat-reading-progress{
	position: fixed;
	top: 0;
	left: 0;
	width: 0;
	height: 3px;
	background: var(--blackcat-primary);
	z-index: 9999;
	transition: width .15s ease;
}

body.blackcat-dark .blackcat-reading-progress{
	background: var(--blackcat-primary-light);
}

/* ===== Header ===== */
.blackcat-header{
	position: sticky;
	top: 0;
	z-index: 1000;
	background: rgba(255,255,255,.75);
	backdrop-filter: blur(16px) saturate(1.8);
	border-bottom: 1px solid rgba(226,232,240,.6);
	box-shadow: 0 1px 8px rgba(15,23,42,.04);
}

body.blackcat-dark .blackcat-header{
	background: rgba(2,6,23,.8);
	border-color: rgba(30,41,59,.6);
	box-shadow: 0 1px 8px rgba(0,0,0,.3);
}

.blackcat-brand{
	text-decoration: none;
	color: var(--blackcat-text);
}

.blackcat-site-title{
	font-family: var(--blackcat-serif);
	font-size: 1.25rem;
	font-weight: 900;
	margin: 0;
	letter-spacing: -.3px;
}

.blackcat-logo img{
	max-height: 40px;
	width: auto;
}

/* ===== Navigation ===== */
.blackcat-nav .nav{
	gap: 4px;
}

.blackcat-nav .nav .nav-item .nav-link,
.blackcat-nav .nav > li > a{
	color: var(--blackcat-text-soft);
	font-size: .9rem;
	font-weight: 500;
	padding: 8px 12px;
	border-radius: 8px;
	transition: color .2s, background .2s;
}

.blackcat-nav .nav .nav-item .nav-link:hover,
.blackcat-nav .nav > li > a:hover,
.blackcat-nav .nav > li.current-menu-item > a{
	color: var(--blackcat-text);
	background: var(--blackcat-border-soft);
}

/* ===== Search ===== */
.blackcat-search-toggle{
	background: none;
	border: 1px solid var(--blackcat-border);
	border-radius: 10px;
	width: 40px;
	height: 40px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	color: var(--blackcat-text);
	transition: background .2s, border-color .2s;
}

.blackcat-search-toggle:hover{
	background: var(--blackcat-border-soft);
	border-color: var(--blackcat-border);
}

.blackcat-searchbar{
	max-height: 0;
	overflow: hidden;
	transition: max-height .3s ease, opacity .3s ease;
	opacity: 0;
}

.blackcat-searchbar.is-open{
	max-height: 80px;
	opacity: 1;
}

.blackcat-searchbar form{
	display: flex;
	gap: 8px;
}

.blackcat-searchbar input[type="search"]{
	flex: 1;
	padding: 10px 14px;
	border: 1px solid var(--blackcat-border);
	border-radius: 10px;
	background: var(--blackcat-surface);
	color: var(--blackcat-text);
	font-size: .95rem;
}

.blackcat-searchbar input[type="search"]:focus{
	outline: none;
	border-color: var(--blackcat-primary);
	box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

body.blackcat-dark .blackcat-searchbar input[type="search"]:focus{
	border-color: var(--blackcat-primary-light);
	box-shadow: 0 0 0 3px rgba(59,130,246,.2);
}

/* ===== Breadcrumbs ===== */
.blackcat-breadcrumbs{
	margin-bottom: 16px;
	font-size: .85rem;
}

.blackcat-breadcrumbs__list{
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px;
	list-style: none;
	padding: 0;
	margin: 0;
}

.blackcat-breadcrumbs__item{
	display: inline-flex;
	align-items: center;
	color: var(--blackcat-muted);
}

.blackcat-breadcrumbs__item::before{
	content: '›';
	margin-right: 6px;
}

.blackcat-breadcrumbs__item:first-child::before{
	display: none;
}

.blackcat-breadcrumbs__link{
	color: var(--blackcat-text-soft);
}

.blackcat-breadcrumbs__link:hover{
	color: var(--blackcat-text);
}

.blackcat-breadcrumbs__current{
	color: var(--blackcat-text);
	font-weight: 500;
}

/* ===== Article ===== */
.blackcat-article{
	background: var(--blackcat-surface);
	border: 1px solid var(--blackcat-border);
	border-bottom-width: 3px;
	border-radius: var(--blackcat-radius-lg);
	padding: 28px;
	box-shadow: var(--blackcat-shadow);
	position: relative;
}

.blackcat-article::before{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 35%;
	background: linear-gradient(180deg, var(--blackcat-border-soft) 0%, transparent 100%);
	border-radius: var(--blackcat-radius-lg) var(--blackcat-radius-lg) 0 0;
	pointer-events: none;
}

.blackcat-article .blackcat-title{
	font-family: var(--blackcat-serif);
	font-size: 1.85rem;
	margin: 0 0 10px;
	background: linear-gradient(135deg, var(--blackcat-text) 0%, var(--blackcat-text-soft) 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.blackcat-meta{
	font-size: .85rem;
	color: var(--blackcat-muted);
	display: flex;
	gap: 6px;
	align-items: center;
}

/* ===== Cards ===== */
.blackcat-card{
	background: var(--blackcat-surface);
	border: 1px solid var(--blackcat-border);
	border-bottom: 3px solid var(--blackcat-border);
	border-radius: var(--blackcat-radius);
	overflow: hidden;
	box-shadow: var(--blackcat-shadow);
	transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
	height: 100%;
	display: flex;
	flex-direction: column;
	position: relative;
}

.blackcat-card::before{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 40%;
	background: linear-gradient(180deg, var(--blackcat-border-soft) 0%, transparent 100%);
	pointer-events: none;
	z-index: 0;
}

.blackcat-card:hover{
	box-shadow: var(--blackcat-shadow-hover);
	transform: translateY(-4px);
	border-bottom-color: var(--blackcat-primary);
}

.blackcat-thumb{
	display: block;
	aspect-ratio: 16/10;
	overflow: hidden;
	background: linear-gradient(135deg, var(--blackcat-border-soft), var(--blackcat-border));
	position: relative;
	z-index: 1;
}

.blackcat-thumb img{
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform .3s ease;
}

.blackcat-card:hover .blackcat-thumb img{
	transform: scale(1.04);
}

.blackcat-card-body{
	padding: 16px;
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.blackcat-card-body .blackcat-title{
	font-family: var(--blackcat-serif);
	font-size: 1.05rem;
	line-height: 1.35;
	margin: 0;
}

.blackcat-card-body .blackcat-title a{
	color: var(--blackcat-text);
	background: linear-gradient(180deg, var(--blackcat-text) 0%, var(--blackcat-text-soft) 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	transition: opacity .2s;
}

.blackcat-card-body .blackcat-title a:hover{
	opacity: .85;
}

.blackcat-card-body .blackcat-excerpt{
	font-size: .875rem;
	color: var(--blackcat-text-soft);
	margin: 0;
	line-height: 1.5;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

/* ===== Entry content ===== */
.entry-content{
	line-height: 1.75;
	font-size: 1.05rem;
}

.entry-content p{
	margin-bottom: 1.25em;
}

.entry-content h2,
.entry-content h3{
	font-family: var(--blackcat-serif);
	margin-top: 2em;
	margin-bottom: .5em;
}

.entry-content img{
	border-radius: var(--blackcat-radius);
}

.entry-content ul,
.entry-content ol{
	padding-left: 1.5em;
	margin-bottom: 1.25em;
}

.entry-content blockquote{
	border-left: 3px solid var(--blackcat-gradient);
	padding: 14px 22px;
	margin: 1.5em 0;
	background: linear-gradient(135deg, var(--blackcat-border-soft), var(--blackcat-surface));
	border-radius: 0 12px 12px 0;
	font-style: italic;
	color: var(--blackcat-text-soft);
	box-shadow: inset 0 1px 0 rgba(0,0,0,.03);
}

body.blackcat-dark .entry-content blockquote{
	border-left-color: var(--blackcat-accent);
	background: linear-gradient(135deg, var(--blackcat-surface-raised), var(--blackcat-surface));
}

.entry-content a{
	text-decoration: underline;
	text-underline-offset: 2px;
}

.entry-content pre,
.entry-content code{
	font-family: 'Courier New', Courier, monospace;
	background: linear-gradient(135deg, var(--blackcat-surface-raised), var(--blackcat-border-soft));
	padding: 2px 8px;
	border-radius: 8px;
	font-size: .9em;
	border: 1px solid var(--blackcat-border);
}

.entry-content pre{
	padding: 18px;
	overflow-x: auto;
	border-radius: 12px;
	box-shadow: inset 0 2px 4px rgba(0,0,0,.04);
}

/* ===== Table of contents ===== */
.blackcat-toc{
	background: linear-gradient(135deg, var(--blackcat-surface), var(--blackcat-surface-raised));
	border: 1px solid var(--blackcat-border);
	border-bottom-width: 2px;
	border-radius: var(--blackcat-radius);
	padding: 18px 22px;
	margin-bottom: 24px;
	box-shadow: 0 1px 3px rgba(0,0,0,.04);
}

.blackcat-toc h2{
	font-size: 1rem;
	margin: 0 0 10px;
}

.blackcat-toc ul{
	list-style: none;
	padding: 0;
	margin: 0;
}

.blackcat-toc li{
	padding: 4px 0;
}

.blackcat-toc a{
	color: var(--blackcat-text-soft);
	font-size: .9rem;
}

.blackcat-toc a:hover{
	color: var(--blackcat-text);
}

/* ===== Section titles ===== */
.blackcat-section-title{
	font-family: var(--blackcat-serif);
	font-size: 1.25rem;
	margin: 0;
}

.blackcat-section-head{
	padding-bottom: 8px;
}

.blackcat-section-link{
	font-size: .9rem;
	font-weight: 500;
	color: var(--blackcat-text-soft);
}

.blackcat-section-link:hover{
	color: var(--blackcat-text);
}

/* ===== Buttons ===== */
.blackcat-btn{
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 22px;
	border-radius: 12px;
	font-size: .9rem;
	font-weight: 600;
	border: 1px solid var(--blackcat-border);
	background: linear-gradient(180deg, var(--blackcat-surface) 0%, var(--blackcat-surface-raised) 100%);
	color: var(--blackcat-text);
	cursor: pointer;
	text-decoration: none;
	transition: all .2s ease;
	box-shadow:
		0 1px 2px rgba(0,0,0,.04),
		0 2px 4px rgba(0,0,0,.04);
}

.blackcat-btn:hover{
	transform: translateY(-1px);
	box-shadow:
		0 2px 4px rgba(0,0,0,.06),
		0 4px 8px rgba(0,0,0,.06);
}

.blackcat-btn.primary{
	background: var(--blackcat-gradient);
	color: #fff;
	border-color: transparent;
	box-shadow:
		0 1px 3px rgba(37,99,235,.25),
		0 4px 8px rgba(37,99,235,.15);
}

.blackcat-btn.primary:hover{
	opacity: 1;
	transform: translateY(-1px);
	box-shadow:
		0 2px 4px rgba(37,99,235,.3),
		0 8px 16px rgba(37,99,235,.2);
}

body.blackcat-dark .blackcat-btn.primary{
	background: var(--blackcat-gradient);
	box-shadow:
		0 1px 3px rgba(59,130,246,.3),
		0 4px 8px rgba(59,130,246,.2);
}

/* ===== Sidebar ===== */
.blackcat-sticky{
	position: sticky;
	top: calc(var(--blackcat-header-h) + 16px);
}

.blackcat-widget{
	background: var(--blackcat-surface);
	border: 1px solid var(--blackcat-border);
	border-bottom: 2px solid var(--blackcat-border);
	border-radius: var(--blackcat-radius);
	padding: 18px;
	margin-bottom: 16px;
	box-shadow: var(--blackcat-shadow);
}

.widget-title{
	font-family: var(--blackcat-serif);
	font-size: 1rem;
	margin: 0 0 12px;
	padding-bottom: 10px;
	border-bottom: 2px solid var(--blackcat-border);
	background: linear-gradient(90deg, var(--blackcat-border-soft), transparent);
}

.blackcat-widget ul{
	list-style: none;
	padding: 0;
	margin: 0;
}

.blackcat-widget ul li{
	padding: 6px 0;
	border-bottom: 1px solid var(--blackcat-border-soft);
}

.blackcat-widget ul li:last-child{
	border-bottom: none;
}

.blackcat-widget ul li a{
	color: var(--blackcat-text-soft);
	font-size: .9rem;
}

.blackcat-widget ul li a:hover{
	color: var(--blackcat-text);
}

/* ===== Newsletter widget ===== */
.blackcat-newsletter .form-control{
	background: var(--blackcat-surface);
	color: var(--blackcat-text);
	border: 1px solid var(--blackcat-border);
	border-radius: 12px;
	box-shadow: inset 0 1px 2px rgba(0,0,0,.03);
}

.blackcat-newsletter .form-control:focus{
	border-color: var(--blackcat-primary);
	box-shadow:
		0 0 0 3px rgba(37,99,235,.15),
		inset 0 1px 0 rgba(255,255,255,.5);
}

body.blackcat-dark .blackcat-newsletter .form-control:focus{
	border-color: var(--blackcat-primary-light);
	box-shadow:
		0 0 0 3px rgba(59,130,246,.2),
		inset 0 1px 0 rgba(255,255,255,.05);
}

.blackcat-help{
	font-size: .8rem;
	color: var(--blackcat-muted);
}

/* ===== Ads ===== */
.blackcat-ad{
	background: linear-gradient(135deg, var(--blackcat-surface), var(--blackcat-surface-raised));
	border: 1px dashed var(--blackcat-border);
	border-radius: var(--blackcat-radius);
	padding: 18px;
	text-align: center;
	min-height: 60px;
	box-shadow: inset 0 1px 0 rgba(0,0,0,.02);
}

.blackcat-ad--header{
	margin-top: 12px;
}

/* ===== Footer ===== */
.blackcat-footer{
	background: linear-gradient(180deg, var(--blackcat-surface), var(--blackcat-surface-raised));
	border-top: 1px solid var(--blackcat-border);
	padding-top: 36px;
	box-shadow: 0 -1px 8px rgba(0,0,0,.02);
}

.blackcat-footer .widget-title{
	font-size: .95rem;
}

.blackcat-footer-bottom{
	padding-top: 20px;
	border-top: 1px solid var(--blackcat-border);
	font-size: .85rem;
	color: var(--blackcat-muted);
}

.blackcat-poweredby a{
	color: var(--blackcat-text-soft);
}

.blackcat-poweredby a:hover{
	color: var(--blackcat-text);
}

/* ===== Hero ===== */
.blackcat-hero{
	overflow: hidden;
}

.blackcat-hero__inner{
	background: linear-gradient(135deg, rgba(255,255,255,.85), rgba(255,255,255,.70));
	border: 1px solid rgba(255,255,255,.6);
	border-bottom: 3px solid rgba(226,232,240,.6);
	border-radius: 20px;
	box-shadow:
		0 2px 4px rgba(37,99,235,.04),
		0 8px 16px rgba(37,99,235,.06),
		0 20px 40px rgba(15,23,42,.08),
		inset 0 1px 0 rgba(255,255,255,.8);
	padding: 28px;
	position: relative;
}

.blackcat-hero__inner::before{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 40%;
	background: linear-gradient(180deg, rgba(255,255,255,.35) 0%, transparent 100%);
	border-radius: 20px 20px 0 0;
	pointer-events: none;
}

body.blackcat-dark .blackcat-hero__inner{
	background: linear-gradient(135deg, rgba(15,23,42,.80), rgba(30,41,59,.75));
	border-color: rgba(59,130,246,.15);
	border-bottom-color: rgba(139,92,246,.12);
	box-shadow:
		0 2px 4px rgba(59,130,246,.08),
		0 8px 16px rgba(59,130,246,.12),
		0 20px 40px rgba(0,0,0,.4),
		inset 0 1px 0 rgba(255,255,255,.05);
}

body.blackcat-dark .blackcat-hero__inner::before{
	background: linear-gradient(180deg, rgba(59,130,246,.08) 0%, transparent 100%);
}

/* ===== Heading animation only ===== */
@keyframes heroSlideIn{
	0%{
		opacity: 0;
		transform: translateY(20px);
		filter: blur(4px);
	}
	100%{
		opacity: 1;
		transform: translateY(0);
		filter: blur(0);
	}
}

@keyframes heroGradientShift{
	0%, 100%{
		background-position: 0% 50%;
	}
	50%{
		background-position: 100% 50%;
	}
}

.blackcat-hero__title{
	font-family: var(--blackcat-serif);
	font-weight: 900;
	letter-spacing: .2px;
	margin: 0 0 8px;
	line-height: 1.1;
	background: linear-gradient(
		135deg,
		var(--blackcat-text) 0%,
		var(--blackcat-primary) 25%,
		var(--blackcat-accent) 50%,
		var(--blackcat-primary) 75%,
		var(--blackcat-text) 100%
	);
	background-size: 200% auto;
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	animation: heroSlideIn .8s ease-out, heroGradientShift 6s ease-in-out infinite;
}

body.blackcat-dark .blackcat-hero__title{
	background: linear-gradient(
		135deg,
		#f1f5f9 0%,
		var(--blackcat-primary-light) 25%,
		var(--blackcat-accent) 50%,
		var(--blackcat-primary-light) 75%,
		#f1f5f9 100%
	);
	background-size: 200% auto;
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.blackcat-hero__subtitle{
	margin: 0 0 12px;
	color: var(--blackcat-muted);
}
body.blackcat-dark .blackcat-hero__subtitle{
	color: rgba(255,255,255,.70);
}

.blackcat-hero .blackcat-btn{
	box-shadow:
		0 1px 3px rgba(37,99,235,.25),
		0 4px 8px rgba(37,99,235,.15);
}

.blackcat-hero__typing{
	display: inline-flex;
	align-items: baseline;
	gap: 6px;
	margin-left: 10px;
	background: linear-gradient(135deg, var(--blackcat-primary), var(--blackcat-accent));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.blackcat-hero__cursor{
	opacity: .9;
	animation: bcBlink 1s steps(1,end) infinite;
}
@keyframes bcBlink{
	50%{ opacity: 0; }
}

@media (prefers-reduced-motion: reduce){
	.blackcat-hero__cursor{ animation: none; }
}

/* ===== Responsive tweaks ===== */
@media (max-width: 767.98px){
	.blackcat-article{
		padding: 16px;
	}

	.blackcat-article .blackcat-title{
		font-size: 1.4rem;
	}

	.blackcat-card-body{
		padding: 12px;
	}

	.blackcat-hero__inner{
		padding: 18px;
	}
}