/* =====================================================
   TechPulse NeoWave — Main Stylesheet
   Dark-first theme (default) + Light theme via [data-theme="light"]
===================================================== */

:root {
	--color-bg: #0a0e1a;
	--color-bg-alt: #10162b;
	--color-glass: rgba(255,255,255,0.04);
	--color-glass-border: rgba(255,255,255,0.08);
	--color-text: #f1f4fb;
	--color-muted: #93a0c2;
	--color-primary: #7c3aed;
	--color-cyan: #06b6d4;
	--color-gold: #eab308;
	--color-border: rgba(255,255,255,0.08);
	--font-heading: "Sora", -apple-system, sans-serif;
	--font-body: "Inter", -apple-system, sans-serif;
	--container-width: 1320px;
	--radius: 16px;
	--radius-sm: 10px;
	--gradient-primary: linear-gradient(135deg, #7c3aed, #06b6d4);
}

[data-theme="light"] {
	--color-bg: #f6f7fb;
	--color-bg-alt: #ffffff;
	--color-glass: rgba(15,23,42,0.03);
	--color-glass-border: rgba(15,23,42,0.08);
	--color-text: #0f172a;
	--color-muted: #5b6479;
	--color-border: rgba(15,23,42,0.09);
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font-family: var(--font-body);
	color: var(--color-text);
	background: var(--color-bg);
	line-height: 1.65;
	transition: background-color 0.25s ease, color 0.25s ease;
}

a { color: var(--color-cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5 { font-family: var(--font-heading); }

.container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
.screen-reader-text { position: absolute; left: -9999px; }
.skip-link:focus { left: 10px; top: 10px; position: absolute; background: var(--color-primary); color: #fff; padding: 8px 14px; border-radius: 6px; z-index: 999; }

/* ---------- Reading progress bar ---------- */
.reading-progress {
	position: fixed;
	top: 0; left: 0;
	height: 3px;
	width: 0%;
	background: var(--gradient-primary);
	z-index: 500;
	transition: width 0.1s ease-out;
}

/* ---------- Buttons ---------- */
.icon-btn { background: none; border: none; cursor: pointer; font-size: 1.1rem; color: var(--color-text); padding: 6px; line-height: 1; }
.btn { display: inline-block; padding: 9px 20px; border-radius: 30px; font-weight: 600; font-size: 0.88rem; cursor: pointer; border: 1px solid transparent; }
.btn-glow {
	background: var(--gradient-primary);
	color: #fff !important;
	text-decoration: none;
	box-shadow: 0 0 0 rgba(124,58,237,0);
	transition: box-shadow 0.25s ease, transform 0.15s ease;
}
.btn-glow:hover { box-shadow: 0 0 24px rgba(124,58,237,0.5); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--color-text) !important; border-color: var(--color-glass-border); text-decoration: none; }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary) !important; }
.btn-small { padding: 6px 16px; font-size: 0.78rem; }

/* ---------- Glass card base ---------- */
.glass {
	background: var(--color-glass);
	border: 1px solid var(--color-glass-border);
	border-radius: var(--radius);
	backdrop-filter: blur(10px);
}

/* ---------- Header ---------- */
.site-header {
	background: rgba(10,14,26,0.7);
	backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--color-border);
	position: sticky;
	top: 0;
	z-index: 100;
}
[data-theme="light"] .site-header { background: rgba(246,247,251,0.75); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.site-title {
	font-family: var(--font-heading);
	font-size: 1.6rem;
	font-weight: 800;
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent !important;
	text-decoration: none;
}
.primary-nav { flex: 1; }
.primary-nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.primary-nav li { position: relative; }
.primary-nav > ul > li > a { color: var(--color-text); font-weight: 600; font-size: 0.92rem; text-decoration: none; }
.primary-nav .sub-menu {
	display: none;
	position: absolute;
	top: 100%; left: 0;
	background: var(--color-bg-alt);
	border: 1px solid var(--color-border);
	border-radius: 10px;
	min-width: 190px;
	padding: 8px 0;
	box-shadow: 0 12px 30px rgba(0,0,0,0.4);
	z-index: 50;
}
.primary-nav li:hover > .sub-menu { display: block; }
.primary-nav .sub-menu li a { display: block; padding: 8px 16px; font-weight: 400; color: var(--color-text); }
.primary-nav .sub-menu li a:hover { background: var(--color-glass); text-decoration: none; }
.primary-nav .menu-item-has-children > a::after { content: " ▾"; font-size: 0.65rem; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: inline; }

.menu-toggle { display: none; flex-direction: column; gap: 4px; }
.menu-toggle-bar { width: 22px; height: 2px; background: var(--color-text); display: block; }

/* ---------- Sticky category chip bar ---------- */
.category-chip-bar { border-top: 1px solid var(--color-border); overflow: hidden; }
.chip-scroll { display: flex; gap: 10px; padding: 10px 20px; overflow-x: auto; scrollbar-width: none; }
.chip-scroll::-webkit-scrollbar { display: none; }
.chip {
	flex-shrink: 0;
	font-size: 0.78rem;
	font-weight: 600;
	padding: 6px 14px;
	border-radius: 20px;
	background: color-mix(in srgb, var(--chip-color) 15%, transparent);
	border: 1px solid color-mix(in srgb, var(--chip-color) 40%, transparent);
	color: var(--chip-color) !important;
	text-decoration: none !important;
	white-space: nowrap;
}
.chip:hover { background: color-mix(in srgb, var(--chip-color) 28%, transparent); }

/* ---------- Mobile Menu ---------- */
.mobile-menu { position: fixed; inset: 0; background: var(--color-bg); z-index: 200; display: none; padding: 30px 20px; }
.mobile-menu.is-open { display: block; }
.mobile-menu-inner ul { list-style: none; padding: 0; }
.mobile-menu-inner ul li { margin-bottom: 16px; }
.mobile-menu-inner ul li a { font-size: 1.25rem; color: var(--color-text); font-family: var(--font-heading); }
.mobile-menu-close { position: absolute; top: 20px; right: 20px; font-size: 1.4rem; }

/* ---------- Search Overlay ---------- */
.search-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 300; display: none; align-items: flex-start; justify-content: center; }
.search-overlay.is-open { display: flex; }
.search-overlay-inner { background: var(--color-bg-alt); max-width: 700px; width: 90%; margin-top: 10vh; padding: 40px; border-radius: var(--radius); position: relative; border: 1px solid var(--color-border); }
.search-close { position: absolute; top: 16px; right: 16px; font-size: 1.3rem; }
.search-form-large { display: flex; gap: 10px; }
.search-form-large input {
	flex: 1; padding: 14px 16px;
	border: 1px solid var(--color-border);
	border-radius: 10px;
	background: var(--color-glass);
	color: var(--color-text);
	font-size: 1rem;
}
.search-form-large button { padding: 14px 22px; border: none; border-radius: 10px; background: var(--gradient-primary); color: #fff; cursor: pointer; }

/* ---------- Layout ---------- */
.layout-with-sidebar { display: grid; grid-template-columns: 2.4fr 1fr; gap: 40px; padding: 44px 20px; align-items: start; }

/* ---------- Section heading ---------- */
.section { margin-bottom: 56px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.section-heading h2 { font-size: 1.3rem; margin: 0; }
.grad-text { background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; color: transparent; }
.view-all { font-size: 0.85rem; font-weight: 600; color: var(--color-cyan); white-space: nowrap; }

/* ---------- Pills / badges ---------- */
.pill {
	display: inline-block;
	background: color-mix(in srgb, var(--pill-color, var(--color-primary)) 85%, transparent);
	color: #fff !important;
	font-size: 0.68rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	font-weight: 700;
	padding: 4px 12px;
	border-radius: 20px;
	text-decoration: none !important;
}
.pill-gold { background: var(--color-gold); color: #1a1a1a !important; }
.bento-card-thumb, .bento-tile-content, .pick-card-body { position: relative; }
.bento-card-thumb .pill { position: absolute; top: 10px; left: 10px; }

/* ---------- Bento Hero ---------- */
.bento-hero {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	grid-template-rows: repeat(2, 220px);
	gap: 16px;
	margin-bottom: 56px;
}
.bento-tile { border-radius: var(--radius); overflow: hidden; }
.bento-tile-hero { grid-column: span 2; grid-row: span 2; }
.bento-tile-side { grid-column: span 2; grid-row: span 1; }
.bento-tile-link { display: block; height: 100%; }
.bento-tile-media { position: relative; height: 100%; }
.bento-tile-media img { width: 100%; height: 100%; object-fit: cover; }
.bento-tile-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.85), rgba(0,0,0,0.1) 60%); }
.bento-tile-content { position: absolute; left: 0; right: 0; bottom: 0; padding: 20px; z-index: 2; }
.bento-tile-title { color: #fff; margin: 10px 0 6px; line-height: 1.25; }
.bento-tile-hero .bento-tile-title { font-size: 1.5rem; }
.bento-tile-side .bento-tile-title { font-size: 1.05rem; }
.bento-tile-meta { color: rgba(255,255,255,0.8); font-size: 0.75rem; display: flex; gap: 6px; }
.meta-dot { opacity: 0.6; }

/* ---------- Carousels (Spotlight + Category rows) ---------- */
.carousel-arrows { display: flex; gap: 8px; }
.carousel-arrow {
	width: 34px; height: 34px;
	border-radius: 50%;
	border: 1px solid var(--color-border);
	background: var(--color-glass);
	color: var(--color-text);
	cursor: pointer;
	font-size: 1.1rem;
}
.carousel-arrow:hover { border-color: var(--color-primary); color: var(--color-primary); }
.carousel-track { display: flex; gap: 18px; overflow-x: auto; padding-bottom: 6px; scroll-behavior: smooth; scrollbar-width: none; }
.carousel-track::-webkit-scrollbar { display: none; }

.spotlight-card {
	flex: 0 0 220px;
	background: var(--color-glass);
	border: 1px solid var(--color-glass-border);
	border-radius: var(--radius);
	padding: 22px;
	position: relative;
	backdrop-filter: blur(10px);
}
.spotlight-tag {
	position: absolute; top: 14px; right: 14px;
	font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.04em;
	background: var(--gradient-primary); color: #fff;
	padding: 3px 8px; border-radius: 12px; font-weight: 700;
}
.spotlight-icon { font-size: 2rem; margin-bottom: 10px; }
.spotlight-card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.spotlight-rating { margin-bottom: 8px; font-size: 0.85rem; }
.spotlight-rating .stars { color: var(--color-gold); }
.spotlight-rating .rating-number { color: var(--color-muted); margin-left: 4px; }
.spotlight-card p { font-size: 0.83rem; color: var(--color-muted); margin-bottom: 14px; min-height: 3.2em; }

.carousel-card { flex: 0 0 260px; border-radius: var(--radius); overflow: hidden; background: var(--color-glass); border: 1px solid var(--color-glass-border); }
.carousel-card-thumb img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.carousel-card-body { padding: 14px; }
.carousel-card-body h3 { font-size: 0.95rem; margin: 0 0 8px; line-height: 1.3; }
.carousel-card-body h3 a { color: var(--color-text); }

/* ---------- Bento article grid ---------- */
.bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; grid-auto-flow: dense; }
.bento-grid .span-lg { grid-column: span 2; grid-row: span 2; }
.bento-grid .span-md { grid-column: span 2; grid-row: span 1; }
.bento-grid .span-sm { grid-column: span 1; grid-row: span 1; }
.bento-grid-archive { grid-template-columns: repeat(3, 1fr); }
.bento-grid-archive .span-lg, .bento-grid-archive .span-md { grid-column: span 1; grid-row: span 1; }

.bento-card {
	background: var(--color-glass);
	border: 1px solid var(--color-glass-border);
	border-radius: var(--radius);
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: transform 0.2s ease, border-color 0.2s ease;
}
.bento-card:hover { transform: translateY(-3px); border-color: var(--color-primary); }
.bento-card-thumb img { width: 100%; height: 100%; aspect-ratio: 4/3; object-fit: cover; }
.span-lg .bento-card-thumb img { aspect-ratio: 16/10; }
.bento-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.bento-card-title { font-size: 1rem; margin: 0 0 8px; line-height: 1.3; }
.span-lg .bento-card-title { font-size: 1.3rem; }
.bento-card-title a { color: var(--color-text); }
.bento-card-excerpt { font-size: 0.88rem; color: var(--color-muted); margin-bottom: 10px; flex: 1; }
.bento-card-meta { font-size: 0.75rem; color: var(--color-muted); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: auto; }

/* ---------- Editor's picks ---------- */
.picks-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pick-card { background: var(--color-glass); border: 1px solid var(--color-glass-border); border-radius: var(--radius); overflow: hidden; display: flex; gap: 0; flex-direction: column; }
.pick-card-thumb img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.pick-card-body { padding: 16px; }
.pick-card-body h3 { font-size: 1rem; margin: 10px 0 8px; }
.pick-card-body h3 a { color: var(--color-text); }

/* ---------- Sidebar ---------- */
.widget-area .widget {
	background: var(--color-glass);
	border: 1px solid var(--color-glass-border);
	border-radius: var(--radius);
	padding: 20px;
	margin-bottom: 22px;
	backdrop-filter: blur(10px);
}
.widget-title { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.03em; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--color-border); }
.search-form { display: flex; gap: 8px; }
.search-form input[type="search"] { flex: 1; padding: 9px 10px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg); color: var(--color-text); }
.search-form input[type="submit"] { padding: 9px 14px; border: none; border-radius: 8px; background: var(--gradient-primary); color: #fff; cursor: pointer; }

.ranked-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--color-border); }
.ranked-item:last-child { border-bottom: none; }
.rank-number { font-weight: 800; font-family: var(--font-heading); background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 1.15rem; flex-shrink: 0; }
.ranked-item-body h4, .ranked-item-body h5 { margin: 0 0 4px; font-size: 0.92rem; line-height: 1.3; }
.ranked-item-body h4 a, .ranked-item-body h5 a { color: var(--color-text); }
.ranked-item-meta { font-size: 0.72rem; color: var(--color-muted); }

.category-count-list { list-style: none; padding: 0; margin: 0; }
.category-count-list li { padding: 8px 0; border-bottom: 1px solid var(--color-border); }
.category-count-list li:last-child { border-bottom: none; }
.category-count-list a { color: var(--color-text); display: flex; align-items: center; gap: 8px; }
.cat-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dot-color, var(--color-primary)); display: inline-block; flex-shrink: 0; }
.category-count { color: var(--color-muted); margin-left: auto; }

.newsletter-form { display: flex; flex-direction: column; gap: 10px; }
.newsletter-form input[type="email"] { padding: 10px 12px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg); color: var(--color-text); }

/* ---------- Newsletter Banner ---------- */
.newsletter-banner { position: relative; overflow: hidden; padding: 70px 20px; text-align: center; margin-top: 20px; background: var(--color-bg-alt); }
.newsletter-glow {
	position: absolute; inset: -50% -10%; z-index: 0;
	background: radial-gradient(circle at 30% 30%, rgba(124,58,237,0.35), transparent 60%),
	            radial-gradient(circle at 70% 70%, rgba(6,182,212,0.3), transparent 60%);
	filter: blur(40px);
}
.newsletter-banner-inner { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }
.newsletter-banner h2 { font-size: 1.9rem; margin: 0 0 10px; }
.newsletter-form-large { flex-direction: row; }
.newsletter-form-large input { flex: 1; background: var(--color-glass); color: var(--color-text); border: 1px solid var(--color-border); border-radius: 30px; padding: 12px 18px; }
.newsletter-form-large button { border-radius: 30px; }
.newsletter-disclaimer { font-size: 0.78rem; color: var(--color-muted); margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-alt); padding: 50px 0 24px; position: relative; }
.footer-glow-line { height: 2px; background: var(--gradient-primary); }
.footer-columns { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; margin: 40px 0 30px; }
.footer-logo { font-family: var(--font-heading); font-weight: 800; font-size: 1.3rem; background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; color: transparent; }
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; margin: 0 0 14px; color: var(--color-muted); }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--color-muted); }
.footer-social { display: flex; gap: 10px; margin-top: 14px; }
.footer-social a { width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--color-border); border-radius: 50%; color: var(--color-text); }
.footer-bottom { border-top: 1px solid var(--color-border); padding-top: 20px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 0.78rem; color: var(--color-muted); }
.footer-powered-by span { color: var(--color-text); font-weight: 600; }

.back-to-top {
	position: fixed; bottom: 24px; right: 24px;
	width: 44px; height: 44px;
	border-radius: 50%;
	background: var(--gradient-primary);
	color: #fff; border: none;
	cursor: pointer;
	font-size: 1.2rem;
	opacity: 0; pointer-events: none;
	transition: opacity 0.2s ease, transform 0.2s ease;
	z-index: 150;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-3px); }

/* ---------- Pagination ---------- */
.pagination { margin-top: 40px; display: flex; gap: 10px; justify-content: center; }
.pagination .page-numbers { padding: 6px 14px; border: 1px solid var(--color-border); border-radius: 20px; color: var(--color-text); }
.pagination .page-numbers.current { background: var(--gradient-primary); color: #fff; border-color: transparent; }

/* ---------- Single Post / Page ---------- */
.single-post-title, .page-title, .archive-title { font-size: 2.1rem; line-height: 1.2; margin: 14px 0 12px; }
.single-post-meta { color: var(--color-muted); font-size: 0.85rem; display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.single-post-thumb { margin-bottom: 24px; border-radius: var(--radius); overflow: hidden; }
.single-post-content { font-size: 1.05rem; }
.single-post-content p { margin-bottom: 1.4em; }
.has-drop-cap > p:first-of-type::first-letter {
	font-family: var(--font-heading);
	float: left;
	font-size: 3.6em;
	line-height: 0.85;
	font-weight: 800;
	margin: 0.05em 0.1em 0 0;
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}
.post-tags a {
	display: inline-block;
	background: var(--color-glass);
	border: 1px solid var(--color-border);
	border-radius: 20px;
	padding: 4px 14px;
	margin: 0 6px 6px 0;
	font-size: 0.8rem;
	color: var(--color-text);
}
.post-navigation { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; border-top: 1px solid var(--color-border); padding-top: 20px; }
.nav-subtitle { display: block; font-size: 0.7rem; text-transform: uppercase; color: var(--color-muted); }
.nav-title { color: var(--color-text); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
	.layout-with-sidebar { grid-template-columns: 1fr; }
	.bento-hero { grid-template-columns: repeat(2, 1fr); grid-template-rows: 260px repeat(2, 200px); }
	.bento-tile-hero { grid-column: span 2; grid-row: span 1; }
	.bento-tile-side { grid-column: span 1; }
	.bento-grid { grid-template-columns: repeat(2, 1fr); }
	.bento-grid .span-lg { grid-column: span 2; }
	.footer-columns { grid-template-columns: repeat(2, 1fr); }
	.picks-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
	.primary-nav { display: none; }
	.btn-glow.header-actions-btn, .header-actions .btn-glow { display: none; }
	.menu-toggle { display: flex; }
	.bento-hero { grid-template-columns: 1fr; grid-template-rows: repeat(5, 220px); }
	.bento-tile-hero, .bento-tile-side { grid-column: span 1; }
	.bento-grid { grid-template-columns: 1fr; }
	.bento-grid .span-lg, .bento-grid .span-md { grid-column: span 1; }
	.footer-columns { grid-template-columns: 1fr; }
	.picks-grid { grid-template-columns: 1fr; }
	.newsletter-form-large { flex-direction: column; }
}