/* ============================================================
   Hitem3D Blog Theme — CSS
   Design Language: Dark mode, cyan/lime gradients, glass-morphism
   ============================================================ */

*,
*::before,
*::after {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	--bg: #050508;
	--bg-card: rgba(255, 255, 255, 0.03);
	--bg-card-hover: rgba(255, 255, 255, 0.06);
	--border: rgba(255, 255, 255, 0.08);
	--border-hover: rgba(45, 255, 206, 0.3);
	--cyan: #2dffce;
	--cyan2: #48ffe4;
	--lime: #b8ff9a;
	--yellow: #fffb82;
	--purple: #bcb8ff;
	--text: rgba(255, 255, 255, 0.92);
	--text2: rgba(255, 255, 255, 0.6);
	--text3: rgba(255, 255, 255, 0.38);
	--radius: 12px;
	--max-w: 1280px;
}

body {
	font-family: 'Inter', system-ui, -apple-system, sans-serif;
	background: var(--bg);
	color: var(--text);
	line-height: 1.6;
	min-height: 100vh;
}

a {
	color: inherit;
	text-decoration: none;
}

/* ── Ambient glow ── */
.ambient {
	position: fixed;
	top: -40%;
	left: -20%;
	width: 80vw;
	height: 80vw;
	background: radial-gradient(
		circle,
		rgba(45, 255, 206, 0.06) 0%,
		transparent 70%
	);
	pointer-events: none;
	z-index: 0;
}
.ambient2 {
	position: fixed;
	bottom: -30%;
	right: -15%;
	width: 60vw;
	height: 60vw;
	background: radial-gradient(
		circle,
		rgba(188, 184, 255, 0.04) 0%,
		transparent 70%
	);
	pointer-events: none;
	z-index: 0;
}

main {
	position: relative;
	z-index: 1;
}

/* ══════════════════════════════════════
   Header / Nav
   ══════════════════════════════════════ */

header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(5, 5, 8, 0.82);
	backdrop-filter: blur(24px);
	-webkit-backdrop-filter: blur(24px);
	border-bottom: 1px solid var(--border);
}
.nav-inner {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 0 24px;
	height: 64px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.logo {
	display: inline-flex;
	align-items: center;
}
.logo img {
	display: block;
	height: 28px;
	width: auto;
}
.footer-logo img {
	height: 24px;
}
.nav-links {
	display: flex;
	gap: 32px;
	align-items: center;
}
.nav-links a {
	font-size: 14px;
	font-weight: 500;
	color: var(--text2);
	transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
	color: var(--cyan);
}
.nav-right {
	display: flex;
	align-items: center;
	gap: 16px;
}
.lang-switcher {
	font-size: 13px;
	color: var(--text2);
}
.lang-switcher .lang-link {
	color: inherit;
	text-decoration: none;
	margin: 0 2px;
}
.lang-switcher .lang-link:hover {
	color: var(--cyan);
}
.lang-sep {
	margin: 0 6px;
	opacity: 0.6;
}

/* Language Dropdown */
.lang-btn {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 6px 14px;
	border-radius: 8px;
	background: var(--bg-card);
	border: 1px solid var(--border);
	color: var(--text2);
	font-size: 13px;
	cursor: pointer;
	transition: all 0.2s;
}
.lang-btn:hover {
	border-color: var(--cyan);
	color: var(--text);
}
.lang-dropdown {
	position: relative;
	display: inline-block;
}
.lang-menu {
	display: none;
	position: absolute;
	top: calc(100% + 3px);
	right: 0;
	min-width: 150px;
	padding: 6px;
	background: rgba(20, 20, 28, 0.95);
	backdrop-filter: blur(20px);
	border: 1px solid var(--border);
	border-radius: 10px;
	box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}
.lang-dropdown:hover .lang-menu {
	display: block;
}
.lang-menu a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 8px 14px;
	border-radius: 6px;
	font-size: 13px;
	color: var(--text2);
	transition: all 0.15s;
}
.lang-menu a:hover {
	background: rgba(255, 255, 255, 0.06);
	color: var(--text);
}
.lang-menu a.selected {
	color: var(--cyan);
}
.lang-menu a.selected::after {
	content: '\2713';
	font-size: 12px;
}

/* CTA button */
.cta-btn {
	display: inline-block;
	padding: 8px 20px;
	border-radius: 88px;
	font-size: 13px;
	font-weight: 600;
	background: linear-gradient(135deg, var(--lime), var(--cyan));
	color: #0a0a0a;
	border: none;
	cursor: pointer;
	transition: opacity 0.2s;
}
.cta-btn:hover {
	opacity: 0.88;
}

/* Mobile menu toggle */
.mobile-menu-btn {
	display: none;
	background: none;
	border: none;
	color: var(--text2);
	cursor: pointer;
}

/* ══════════════════════════════════════
   Breadcrumb
   ══════════════════════════════════════ */

.breadcrumb-bar {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 20px 24px 0;
}
.breadcrumb {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 13px;
	color: var(--text3);
	flex-wrap: wrap;
}
.breadcrumb a {
	color: var(--text3);
	transition: color 0.2s;
}
.breadcrumb a:hover {
	color: var(--cyan);
}
.breadcrumb .sep {
	font-size: 11px;
}
.breadcrumb .current {
	color: var(--text2);
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	max-width: 400px;
}

/* ══════════════════════════════════════
   Hero
   ══════════════════════════════════════ */

.hero {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 48px 24px 0;
	text-align: center;
}
.hero h1 {
	font-size: clamp(32px, 5vw, 52px);
	font-weight: 700;
	letter-spacing: -1px;
	background: linear-gradient(135deg, var(--yellow), var(--cyan));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	margin-bottom: 12px;
}
.hero p {
	color: var(--text2);
	font-size: 17px;
	max-width: 560px;
	margin: 0 auto;
}

/* ══════════════════════════════════════
   Category Tabs
   ══════════════════════════════════════ */

.categories {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 36px 24px 0;
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	justify-content: center;
}
.cat-tab {
	padding: 8px 20px;
	border-radius: 88px;
	font-size: 13px;
	font-weight: 500;
	border: 1px solid var(--border);
	background: transparent;
	color: var(--text2);
	cursor: pointer;
	transition: all 0.25s;
	white-space: nowrap;
	text-decoration: none;
}
.cat-tab:hover {
	border-color: rgba(45, 255, 206, 0.4);
	color: var(--cyan);
}
.cat-tab.active {
	background: linear-gradient(135deg, var(--cyan), var(--lime));
	color: #0a0a0a;
	border-color: transparent;
	font-weight: 600;
	box-shadow: 0 0 20px rgba(45, 255, 206, 0.2);
}

/* ══════════════════════════════════════
   Card Grid
   ══════════════════════════════════════ */

.grid-section {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 40px 24px;
}
.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
	gap: 24px;
}

/* ══════════════════════════════════════
   Card
   ══════════════════════════════════════ */

.card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
	cursor: pointer;
	position: relative;
	display: block;
}
.card:hover {
	transform: translateY(-5px);
	border-color: var(--border-hover);
	box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 30px rgba(45, 255, 206, 0.06);
}
.card-img {
	width: 100%;
	aspect-ratio: 16/9;
	object-fit: cover;
	display: block;
	background: #111;
}
.card-body {
	padding: 20px;
}

/* Badge */
.badge {
	display: inline-block;
	padding: 3px 10px;
	border-radius: 6px;
	font-size: 11px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: 12px;
}
.badge-3d-printing {
	background: rgba(45, 255, 206, 0.12);
	color: #2dffce;
}
.badge-game-design {
	background: rgba(188, 184, 255, 0.12);
	color: #bcb8ff;
}
.badge-film-vfx {
	background: rgba(255, 251, 130, 0.12);
	color: #fffb82;
}
.badge-art-sculpture {
	background: rgba(255, 154, 177, 0.12);
	color: #ff9ab1;
}
.badge-architecture {
	background: rgba(130, 200, 255, 0.12);
	color: #82c8ff;
}
.badge-architecture-design {
	background: rgba(130, 200, 255, 0.12);
	color: #82c8ff;
}
.badge-fashion {
	background: rgba(255, 184, 153, 0.12);
	color: #ffb899;
}
.badge-fashion-jewelry-design {
	background: rgba(255, 184, 153, 0.12);
	color: #ffb899;
}

.card-title {
	font-size: 17px;
	font-weight: 600;
	line-height: 1.45;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	margin-bottom: 10px;
	color: var(--text);
}
.card-excerpt {
	font-size: 14px;
	color: var(--text2);
	line-height: 1.6;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
	margin-bottom: 16px;
}
.card-footer {
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.card-date {
	font-size: 12px;
	color: var(--text3);
}
.card-read {
	font-size: 13px;
	font-weight: 500;
	color: var(--cyan);
	display: flex;
	align-items: center;
	gap: 4px;
	transition: gap 0.2s;
}
.card:hover .card-read {
	gap: 8px;
}

/* ══════════════════════════════════════
   Pagination
   ══════════════════════════════════════ */

.pagination {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 6px;
	padding: 0 24px 60px;
}
.page-btn {
	width: 40px;
	height: 40px;
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 14px;
	font-weight: 500;
	border: 1px solid var(--border);
	background: transparent;
	color: var(--text2);
	cursor: pointer;
	transition: all 0.2s;
	text-decoration: none;
}
.page-btn:hover {
	border-color: rgba(45, 255, 206, 0.3);
	color: var(--text);
	background: rgba(255, 255, 255, 0.04);
}
.page-btn.active {
	background: var(--cyan);
	color: #0a0a0a;
	border-color: transparent;
	font-weight: 700;
	box-shadow: 0 0 16px rgba(45, 255, 206, 0.25);
}
.page-btn.arrow {
	font-size: 18px;
	width: auto;
	padding: 0 14px;
}
.page-btn.disabled {
	opacity: 0.3;
	pointer-events: none;
}

/* ══════════════════════════════════════
   Article Layout (post.ejs)
   ══════════════════════════════════════ */

.article-layout {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 32px 24px 60px;
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 48px;
}
.article-main {
	min-width: 0;
}

.cover-img {
	width: 100%;
	border-radius: var(--radius);
	aspect-ratio: 16/9;
	object-fit: cover;
	margin-bottom: 32px;
	background: #111;
}

.article-header {
	margin-bottom: 40px;
}
.article-title {
	font-size: clamp(26px, 4vw, 38px);
	font-weight: 700;
	line-height: 1.25;
	letter-spacing: -0.5px;
	margin-bottom: 16px;
	background: linear-gradient(135deg, var(--yellow), var(--cyan));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}
.article-meta {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-wrap: wrap;
}
.meta-dot {
	color: var(--text3);
}
.meta-text {
	font-size: 13px;
	color: var(--text3);
}

/* ── Article Body ── */
.article-body {
	margin-bottom: 48px;
}
.article-body h2 {
	font-size: 24px;
	font-weight: 700;
	color: var(--text);
	margin: 48px 0 16px;
	padding-top: 8px;
	border-top: 1px solid var(--border);
}
.article-body h2:first-child {
	margin-top: 0;
	border-top: none;
}
.article-body h3 {
	font-size: 19px;
	font-weight: 600;
	color: var(--text);
	margin: 32px 0 12px;
}
.article-body p {
	font-size: 16px;
	line-height: 1.8;
	color: rgba(255, 255, 255, 0.82);
	margin-bottom: 20px;
}
.article-body img {
	max-width: 100%;
	border-radius: 8px;
	margin: 24px 0;
	display: block;
}
.article-body .img-caption {
	text-align: center;
	font-size: 13px;
	color: var(--text3);
	margin-top: -16px;
	margin-bottom: 24px;
}
.article-body ul,
.article-body ol {
	padding-left: 24px;
	margin-bottom: 20px;
}
.article-body li {
	font-size: 16px;
	line-height: 1.8;
	color: rgba(255, 255, 255, 0.82);
	margin-bottom: 8px;
}
.article-body a {
	color: var(--cyan);
}
.article-body a:hover {
	text-decoration: underline;
}
.article-body blockquote {
	border-left: 3px solid var(--cyan);
	background: rgba(45, 255, 206, 0.04);
	padding: 16px 20px;
	border-radius: 0 8px 8px 0;
	margin: 24px 0;
}
.article-body blockquote p {
	margin-bottom: 0;
}
.article-body code {
	background: rgba(255, 255, 255, 0.06);
	padding: 2px 6px;
	border-radius: 4px;
	font-size: 14px;
}
.article-body pre {
	background: rgba(255, 255, 255, 0.04);
	padding: 16px;
	border-radius: 8px;
	overflow-x: auto;
	margin: 24px 0;
	border: 1px solid var(--border);
}
.article-body pre code {
	background: none;
	padding: 0;
}
.article-body strong {
	color: var(--text);
}

/* ── Tags ── */
.tags-section {
	margin-bottom: 32px;
}
.tags-label {
	font-size: 13px;
	color: var(--text3);
	margin-bottom: 10px;
}
.tags-list {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}
.tag {
	padding: 4px 14px;
	border-radius: 88px;
	font-size: 12px;
	font-weight: 500;
	border: 1px solid rgba(45, 255, 206, 0.25);
	color: var(--cyan);
	background: rgba(45, 255, 206, 0.05);
	transition: all 0.2s;
	cursor: pointer;
}
.tag:hover {
	background: rgba(45, 255, 206, 0.12);
	border-color: var(--cyan);
}

/* ── Share ── */
.share-section {
	margin-bottom: 40px;
	display: flex;
	align-items: center;
	gap: 12px;
}
.share-label {
	font-size: 13px;
	color: var(--text3);
}
.share-btn {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--bg-card);
	border: 1px solid var(--border);
	color: var(--text2);
	font-size: 14px;
	cursor: pointer;
	transition: all 0.2s;
}
.share-btn:hover {
	border-color: var(--cyan);
	color: var(--cyan);
	background: rgba(45, 255, 206, 0.06);
}

/* ══════════════════════════════════════
   Sidebar
   ══════════════════════════════════════ */

.sidebar {
	position: relative;
}
.sidebar-sticky {
	position: sticky;
	top: 88px;
	display: flex;
	flex-direction: column;
	gap: 24px;
}

/* TOC — Hexo generates <ol class="toc"> */
.toc-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 20px;
}
.toc-title {
	font-size: 12px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 1px;
	color: var(--text3);
	margin-bottom: 16px;
}
.toc-card ol {
	list-style: none;
	padding: 0;
	margin: 0;
}
.toc-card ol ol {
	padding-left: 12px;
}
.toc-card li {
	margin-bottom: 2px;
}
.toc-card a {
	display: block;
	padding: 6px 12px;
	border-radius: 6px;
	font-size: 13px;
	color: var(--text2);
	transition: all 0.15s;
	border-left: 2px solid transparent;
}
.toc-card a:hover {
	background: rgba(255, 255, 255, 0.04);
	color: var(--text);
}
.toc-card a.toc-active {
	color: var(--cyan);
	border-left-color: var(--cyan);
	background: rgba(45, 255, 206, 0.06);
}

/* CTA Card */
.cta-card {
	background: linear-gradient(
		135deg,
		rgba(45, 255, 206, 0.08),
		rgba(184, 255, 154, 0.05)
	);
	border: 1px solid rgba(45, 255, 206, 0.18);
	border-radius: var(--radius);
	padding: 24px;
	text-align: center;
}
.cta-card-icon {
	font-size: 32px;
	margin-bottom: 12px;
}
.cta-card-title {
	font-size: 16px;
	font-weight: 700;
	margin-bottom: 8px;
}
.cta-card-desc {
	font-size: 13px;
	color: var(--text2);
	margin-bottom: 16px;
	line-height: 1.5;
}
.cta-card .cta-btn {
	padding: 10px 28px;
	font-size: 14px;
}

/* Newsletter */
.newsletter-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 20px;
}
.newsletter-title {
	font-size: 14px;
	font-weight: 600;
	margin-bottom: 4px;
}
.newsletter-desc {
	font-size: 12px;
	color: var(--text3);
	margin-bottom: 14px;
}
.newsletter-input {
	width: 100%;
	padding: 8px 12px;
	border-radius: 8px;
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid var(--border);
	color: var(--text);
	font-size: 13px;
	outline: none;
	margin-bottom: 10px;
	transition: border-color 0.2s;
}
.newsletter-input:focus {
	border-color: var(--cyan);
}
.newsletter-input::placeholder {
	color: var(--text3);
}
.newsletter-btn {
	width: 100%;
	padding: 8px;
	border-radius: 8px;
	background: var(--cyan);
	color: #0a0a0a;
	font-size: 13px;
	font-weight: 600;
	border: none;
	cursor: pointer;
	transition: opacity 0.2s;
}
.newsletter-btn:hover {
	opacity: 0.88;
}

/* ══════════════════════════════════════
   Prev / Next
   ══════════════════════════════════════ */

.prev-next {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 0 24px 48px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
}
.pn-card {
	display: block;
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 24px;
	transition: all 0.3s;
	cursor: pointer;
}
.pn-card:hover {
	border-color: var(--border-hover);
	transform: translateY(-2px);
	box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}
.pn-label {
	font-size: 12px;
	color: var(--text3);
	margin-bottom: 8px;
	display: flex;
	align-items: center;
	gap: 6px;
}
.pn-title {
	font-size: 15px;
	font-weight: 600;
	line-height: 1.4;
}
.pn-card.next {
	text-align: right;
}
.pn-card.next .pn-label {
	justify-content: flex-end;
}

/* ══════════════════════════════════════
   Keep Reading
   ══════════════════════════════════════ */

.keep-reading {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 0 24px 80px;
}
.kr-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 24px;
}
.kr-title {
	font-size: 24px;
	font-weight: 700;
}
.kr-viewall {
	font-size: 13px;
	color: var(--cyan);
	font-weight: 500;
}
.kr-viewall:hover {
	text-decoration: underline;
}
.kr-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 24px;
}

/* ══════════════════════════════════════
   Footer
   ══════════════════════════════════════ */

footer {
	border-top: 1px solid var(--border);
	padding: 40px 24px;
	text-align: center;
	position: relative;
	z-index: 1;
}
.footer-inner {
	max-width: var(--max-w);
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 16px;
}
.footer-links {
	display: flex;
	gap: 24px;
	flex-wrap: wrap;
	justify-content: center;
}
.footer-links a {
	font-size: 13px;
	color: var(--text3);
	transition: color 0.2s;
}
.footer-links a:hover {
	color: var(--cyan);
}
.footer-copy {
	font-size: 12px;
	color: var(--text3);
}

/* ══════════════════════════════════════
   Responsive
   ══════════════════════════════════════ */

@media (max-width: 1024px) {
	.article-layout {
		grid-template-columns: 1fr;
	}
	.sidebar-sticky {
		position: relative;
		top: 0;
	}
	.toc-card {
		display: none;
	}
}

@media (max-width: 768px) {
	.nav-links {
		display: none;
	}
	.nav-links.mobile-open {
		display: flex;
		flex-direction: column;
		position: absolute;
		top: 64px;
		left: 0;
		right: 0;
		background: rgba(5, 5, 8, 0.95);
		backdrop-filter: blur(24px);
		padding: 16px 24px;
		gap: 16px;
		border-bottom: 1px solid var(--border);
	}
	.mobile-menu-btn {
		display: block;
	}

	.categories {
		padding: 24px 16px 0;
		gap: 8px;
		flex-wrap: nowrap;
		overflow-x: auto;
		justify-content: flex-start;
		-webkit-overflow-scrolling: touch;
	}
	.categories::-webkit-scrollbar {
		display: none;
	}

	.card-grid {
		grid-template-columns: 1fr;
	}
	.hero {
		padding: 32px 16px 0;
	}
	.hero h1 {
		font-size: 28px;
	}
	.grid-section {
		padding: 24px 16px;
	}
	.article-layout {
		padding: 24px 16px 40px;
	}
	.prev-next {
		grid-template-columns: 1fr;
		padding: 0 16px 32px;
	}
	.kr-grid {
		grid-template-columns: 1fr;
	}
	.keep-reading {
		padding: 0 16px 60px;
	}
	.breadcrumb-bar {
		padding: 16px 16px 0;
	}
}