/* HUATON AI Product Design Lab — homepage theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

html { scroll-behavior: smooth; }

:root {
	--lab-navy: #0b1530;
	--lab-blue: #132b52;
	--lab-accent: #00b4d8;
	--lab-accent-dim: rgba(0, 180, 216, 0.15);
	--lab-silver: #e9eef5;
	--lab-gray: #64748b;
	--lab-text: #1e293b;
	--lab-white: #ffffff;
	--lab-radius: 12px;
	--lab-shadow: 0 4px 24px rgba(11, 21, 48, 0.08);
}

body.lab-home {
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
	color: var(--lab-text);
	background: var(--lab-white);
	padding-top: 72px;
}

body.lab-home a { color: var(--lab-accent); }
body.lab-home a:hover,
body.lab-home a:focus { color: #0096b4; text-decoration: none; }

.navbar-lab {
	background: rgba(255, 255, 255, 0.92) !important;
	backdrop-filter: blur(10px);
	border: none;
	border-bottom: 1px solid var(--lab-silver);
	box-shadow: 0 1px 0 rgba(11, 21, 48, 0.04);
	min-height: 72px;
}
.navbar-lab .navbar-brand {
	padding: 12px 15px;
	font-weight: 700;
	font-size: 1.05rem;
	color: var(--lab-navy) !important;
	letter-spacing: -0.02em;
}
.navbar-lab .navbar-brand img { width: auto; max-height: 40px; margin-top: 0; }
.navbar-lab .navbar-nav > li > a {
	color: var(--lab-text) !important;
	font-weight: 500;
	padding-top: 24px;
	padding-bottom: 24px;
}
.navbar-lab .navbar-nav > li > a:hover { color: var(--lab-accent) !important; }
.navbar-lab .navbar-nav > .active > a {
	color: var(--lab-accent) !important;
	background: transparent !important;
}
.navbar-lab .navbar-toggle { border-color: var(--lab-silver); background: var(--lab-white); }
.navbar-lab .navbar-toggle .icon-bar { background: var(--lab-navy); }

.lab-hero {
	background: linear-gradient(165deg, var(--lab-white) 0%, var(--lab-silver) 45%, #dce7f5 100%);
	border-bottom: 1px solid var(--lab-silver);
	padding: 4rem 0 4.5rem;
	position: relative;
	overflow: hidden;
}
.lab-hero::before {
	content: '';
	position: absolute;
	top: -40%;
	right: -15%;
	width: 55%;
	height: 120%;
	background: radial-gradient(ellipse, var(--lab-accent-dim) 0%, transparent 70%);
	pointer-events: none;
}
.lab-hero .lead-badge {
	display: inline-block;
	font-size: 0.8rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--lab-blue);
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	padding: 0.35rem 0.85rem;
	border-radius: 100px;
	margin-bottom: 1.25rem;
}
.lab-hero h1 {
	font-size: clamp(1.85rem, 4vw, 2.65rem);
	font-weight: 700;
	color: var(--lab-navy);
	line-height: 1.2;
	margin: 0 0 1rem;
	letter-spacing: -0.03em;
}
.lab-hero .hero-kicker {
	font-size: 1.05rem;
	color: var(--lab-blue);
	font-weight: 600;
	margin-bottom: 0.75rem;
}
.lab-hero .hero-lead {
	font-size: 1.15rem;
	color: var(--lab-gray);
	line-height: 1.65;
	max-width: 36em;
	margin-bottom: 1rem;
}
.lab-hero .hero-zh {
	font-size: 0.98rem;
	color: var(--lab-gray);
	line-height: 1.7;
	max-width: 38em;
	border-left: 3px solid var(--lab-accent);
	padding-left: 1rem;
	margin: 1.5rem 0;
}
.lab-btn-primary {
	background: var(--lab-accent);
	border: none;
	color: var(--lab-white) !important;
	font-weight: 600;
	padding: 0.65rem 1.5rem;
	border-radius: 8px;
	transition: background 0.2s, transform 0.15s;
}
.lab-btn-primary:hover {
	background: #0096b4;
	color: var(--lab-white) !important;
	transform: translateY(-1px);
}
.lab-btn-outline {
	background: transparent;
	border: 2px solid var(--lab-blue);
	color: var(--lab-blue) !important;
	font-weight: 600;
	padding: 0.55rem 1.4rem;
	border-radius: 8px;
}
.lab-btn-outline:hover {
	background: var(--lab-blue);
	color: var(--lab-white) !important;
}

.lab-section { padding: 3.5rem 0; }
.lab-section-alt {
	background: #f8fafc;
	border-top: 1px solid var(--lab-silver);
	border-bottom: 1px solid var(--lab-silver);
}
.lab-section-title {
	font-size: 1.75rem;
	font-weight: 700;
	color: var(--lab-navy);
	margin: 0 0 0.5rem;
	letter-spacing: -0.02em;
}
.lab-section-sub {
	color: var(--lab-gray);
	font-size: 1rem;
	max-width: 40rem;
	margin-bottom: 2rem;
	line-height: 1.6;
}

.lab-card {
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	border-radius: var(--lab-radius);
	padding: 1.5rem 1.35rem;
	height: 100%;
	box-shadow: var(--lab-shadow);
	transition: border-color 0.2s, box-shadow 0.2s;
}
.lab-card:hover {
	border-color: rgba(0, 180, 216, 0.35);
	box-shadow: 0 8px 32px rgba(11, 21, 48, 0.1);
}
.lab-card h3 {
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--lab-navy);
	margin: 0 0 0.65rem;
}
.lab-card p {
	font-size: 0.92rem;
	color: var(--lab-gray);
	line-height: 1.6;
	margin: 0;
}
.lab-card .lab-card-icon {
	width: 42px;
	height: 42px;
	border-radius: 10px;
	background: var(--lab-accent-dim);
	color: var(--lab-accent);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.1rem;
	margin-bottom: 1rem;
}

.lab-service-card ul {
	margin: 0.75rem 0 0;
	padding-left: 1.1rem;
	font-size: 0.88rem;
	color: var(--lab-gray);
	line-height: 1.55;
}

.lab-product-tile {
	text-align: center;
	padding: 1.75rem 1rem;
	border-radius: var(--lab-radius);
	background: linear-gradient(145deg, var(--lab-white), var(--lab-silver));
	border: 1px solid var(--lab-silver);
	font-weight: 600;
	font-size: 0.95rem;
	color: var(--lab-navy);
	min-height: 100px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.lab-why li {
	padding: 0.5rem 0;
	padding-left: 1.5rem;
	position: relative;
	list-style: none;
	font-size: 0.98rem;
	color: var(--lab-text);
}
.lab-why ul { padding-left: 0; }
.lab-why li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 0.85rem;
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--lab-accent);
}

.lab-cta {
	background: linear-gradient(135deg, var(--lab-navy) 0%, var(--lab-blue) 100%);
	color: var(--lab-white);
	padding: 3.5rem 0;
	text-align: center;
}
.lab-cta h2 {
	color: var(--lab-white);
	margin: 0 0 0.75rem;
	font-size: 1.65rem;
	font-weight: 700;
}
.lab-cta p {
	opacity: 0.9;
	max-width: 36rem;
	margin: 0 auto 1.5rem;
	font-size: 1.05rem;
	line-height: 1.6;
}
.lab-cta .lab-btn-primary { background: var(--lab-accent); }
.lab-cta .lab-btn-primary:hover { background: #33c5e0; }

footer#footer.lab-footer {
	margin-top: 0;
	background: var(--lab-navy);
	color: rgba(255, 255, 255, 0.65);
}
footer#footer.lab-footer .footer2 {
	background: #070f1f;
	border-top: 1px solid rgba(255, 255, 255, 0.06);
}
footer#footer.lab-footer .simplenav a { color: rgba(255, 255, 255, 0.75); }
footer#footer.lab-footer .simplenav a:hover { color: var(--lab-accent); }
footer#footer.lab-footer .fa { color: rgba(255, 255, 255, 0.5); }
footer#footer.lab-footer .fa:hover { color: var(--lab-accent); }
footer#footer.lab-footer .text-right,
footer#footer.lab-footer p {
	color: rgba(255, 255, 255, 0.55);
	font-size: 0.9rem;
}

.lab-visual-panel {
	border-radius: var(--lab-radius);
	background: linear-gradient(160deg, #1a3056 0%, var(--lab-navy) 50%, #0d2847 100%);
	border: 1px solid rgba(0, 180, 216, 0.25);
	min-height: 280px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: rgba(255, 255, 255, 0.85);
	text-align: center;
	padding: 2rem;
	box-shadow: var(--lab-shadow);
}
.lab-visual-panel .inner { max-width: 280px; }
.lab-visual-panel strong {
	display: block;
	font-size: 1rem;
	margin-bottom: 0.5rem;
	color: var(--lab-accent);
}
.lab-visual-panel span {
	font-size: 0.85rem;
	opacity: 0.85;
	line-height: 1.5;
}

/* Inner pages (About, etc.) */
.lab-page-hero {
	background: linear-gradient(135deg, var(--lab-navy) 0%, var(--lab-blue) 100%);
	color: var(--lab-white);
	padding: 2.25rem 0 2.5rem;
	margin-top: 0;
	border-bottom: 1px solid rgba(0, 180, 216, 0.2);
}
.lab-page-hero h1 {
	margin: 0;
	font-size: 1.85rem;
	font-weight: 700;
	letter-spacing: -0.02em;
}
.lab-page-hero p {
	margin: 0.5rem 0 0;
	opacity: 0.88;
	font-size: 1rem;
	max-width: 40em;
}

.lab-prose { padding: 2.5rem 0 3rem; }
.lab-prose h2 {
	font-size: 1.35rem;
	font-weight: 700;
	color: var(--lab-navy);
	margin: 2rem 0 1rem;
}
.lab-prose h2:first-child { margin-top: 0; }
.lab-prose p,
.lab-prose li {
	color: var(--lab-gray);
	line-height: 1.7;
	font-size: 0.98rem;
}
.lab-prose .lab-img-inline {
	border-radius: var(--lab-radius);
	border: 1px solid var(--lab-silver);
	max-width: 100%;
	height: auto;
}

.lab-side-panel {
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	border-radius: var(--lab-radius);
	padding: 1.25rem 1.15rem;
	box-shadow: var(--lab-shadow);
}
.lab-side-panel h4 {
	margin: 0 0 1rem;
	font-size: 1rem;
	font-weight: 600;
	color: var(--lab-navy);
}
.lab-side-panel a { font-weight: 500; }
.lab-side-panel .small { color: var(--lab-gray); }

/* Projects / case study grid */
.lab-projects-intro { padding: 2.25rem 0 0; }
.lab-project-card {
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	border-radius: var(--lab-radius);
	overflow: hidden;
	height: 100%;
	box-shadow: var(--lab-shadow);
	transition: border-color 0.2s, box-shadow 0.2s;
}
.lab-project-card:hover {
	border-color: rgba(0, 180, 216, 0.35);
	box-shadow: 0 8px 28px rgba(11, 21, 48, 0.1);
}
.lab-project-card-visual {
	height: 120px;
	background: linear-gradient(135deg, #1a3056 0%, var(--lab-navy) 60%, #0a4a5c 100%);
	display: flex;
	align-items: center;
	justify-content: center;
	color: rgba(255, 255, 255, 0.9);
	font-weight: 700;
	font-size: 0.75rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}
.lab-project-card-visual--photo {
	height: auto;
	min-height: 140px;
	max-height: 260px;
	padding: 0;
	background: #0f172a;
	overflow: hidden;
}
.lab-project-card-visual--photo img {
	width: 100%;
	max-height: 260px;
	object-fit: contain;
	object-position: center top;
	display: block;
}
.lab-project-card-body { padding: 1.25rem 1.2rem 1.35rem; }
.lab-project-card-body h3 {
	margin: 0 0 0.6rem;
	font-size: 1.05rem;
	font-weight: 600;
	color: var(--lab-navy);
	line-height: 1.3;
}
.lab-project-card-body p {
	margin: 0 0 0.85rem;
	font-size: 0.9rem;
	color: var(--lab-gray);
	line-height: 1.55;
}
.lab-tag {
	display: inline-block;
	font-size: 0.72rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--lab-blue);
	background: var(--lab-accent-dim);
	padding: 0.2rem 0.5rem;
	border-radius: 4px;
	margin: 0 0.35rem 0.35rem 0;
}
.lab-tag-row { margin-top: 0.25rem; }

/* —— Homepage v2: nav CTA, eyebrow, hero gradient text, trust row, process, feature cards —— */
.navbar-lab .navbar-brand .lab-brand-mark {
	height: 44px;
	width: auto;
	max-width: 260px;
	object-fit: contain;
	object-position: left center;
	margin: 4px 0;
	display: inline-block;
	vertical-align: middle;
}
.navbar-lab .navbar-nav > li > a.lab-nav-cta {
	margin: 14px 0 14px 12px;
	padding: 10px 18px !important;
	border-radius: 8px;
	background: var(--lab-accent) !important;
	color: #fff !important;
}
.navbar-lab .navbar-nav > li > a.lab-nav-cta:hover,
.navbar-lab .navbar-nav > li > a.lab-nav-cta:focus {
	background: #0096b4 !important;
	color: #fff !important;
}

.lab-eyebrow {
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.14em;
	color: var(--lab-accent);
	margin: 0 0 0.6rem;
}
.lab-text-gradient {
	background: linear-gradient(105deg, var(--lab-accent) 0%, #2563eb 55%, #0891b2 100%);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}
@supports not (background-clip: text) {
	.lab-text-gradient { color: var(--lab-accent); }
}

.lab-hero-trust {
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid rgba(19, 43, 82, 0.08);
}
.lab-hero-trust .item {
	text-align: left;
	margin-bottom: 1rem;
}
.lab-hero-trust .item i {
	color: var(--lab-accent);
	font-size: 1.25rem;
	margin-right: 0.5rem;
	vertical-align: middle;
}
.lab-hero-trust .item span {
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--lab-navy);
	vertical-align: middle;
}

.lab-hero-visual img.lab-hero-main {
	width: 100%;
	max-width: 520px;
	height: auto;
	border-radius: var(--lab-radius);
	border: 1px solid var(--lab-silver);
	box-shadow: 0 20px 50px rgba(11, 21, 48, 0.12);
	display: block;
	margin: 0 auto;
}
.lab-hero-thumbs {
	display: flex;
	gap: 8px;
	justify-content: center;
	margin-top: 10px;
	flex-wrap: wrap;
}
.lab-hero-thumbs img {
	width: 31%;
	max-width: 160px;
	height: 72px;
	object-fit: cover;
	border-radius: 8px;
	border: 1px solid var(--lab-silver);
}

.lab-process-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 1.25rem 0.75rem;
	margin-top: 0.5rem;
}
.lab-process-step {
	flex: 1 1 160px;
	max-width: 220px;
	margin: 0 auto;
	text-align: center;
}
.lab-process-num {
	width: 48px;
	height: 48px;
	border-radius: 50%;
	background: var(--lab-accent-dim);
	color: var(--lab-blue);
	font-weight: 700;
	font-size: 1.1rem;
	line-height: 48px;
	margin: 0 auto 0.85rem;
	border: 2px solid rgba(0, 180, 216, 0.35);
}
.lab-process-step h3 {
	font-size: 1rem;
	font-weight: 600;
	color: var(--lab-navy);
	margin: 0 0 0.5rem;
}
.lab-process-step p {
	font-size: 0.88rem;
	color: var(--lab-gray);
	line-height: 1.55;
	margin: 0;
}

.lab-feature-card {
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	border-radius: var(--lab-radius);
	overflow: hidden;
	height: 100%;
	box-shadow: var(--lab-shadow);
	transition: box-shadow 0.2s, border-color 0.2s;
}
.lab-feature-card:hover {
	border-color: rgba(0, 180, 216, 0.35);
	box-shadow: 0 10px 36px rgba(11, 21, 48, 0.1);
}
.lab-feature-card .lab-feature-img-wrap {
	height: auto;
	min-height: 140px;
	max-height: 280px;
	overflow: hidden;
	background: #f1f5f9;
	display: flex;
	align-items: flex-start;
	justify-content: center;
}
.lab-feature-card .lab-feature-img-wrap img {
	width: 100%;
	height: auto;
	max-height: 280px;
	object-fit: contain;
	object-position: center top;
	display: block;
}
.lab-feature-card .lab-feature-body {
	padding: 1.2rem 1.15rem 1.35rem;
}
.lab-feature-card h3 {
	font-size: 1.05rem;
	font-weight: 600;
	color: var(--lab-navy);
	margin: 0 0 0.5rem;
	line-height: 1.3;
}
.lab-feature-card p {
	font-size: 0.9rem;
	color: var(--lab-gray);
	line-height: 1.55;
	margin: 0 0 0.75rem;
}
.lab-feature-card .lab-feature-tag {
	font-size: 0.7rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--lab-blue);
}

.lab-why-card {
	background: var(--lab-white);
	border: 1px solid var(--lab-silver);
	border-radius: var(--lab-radius);
	padding: 1.5rem 1.25rem;
	height: 100%;
	box-shadow: var(--lab-shadow);
}
.lab-why-card h3 {
	font-size: 1.05rem;
	font-weight: 600;
	color: var(--lab-navy);
	margin: 0 0 0.65rem;
}
.lab-why-card p {
	font-size: 0.92rem;
	color: var(--lab-gray);
	line-height: 1.6;
	margin: 0;
}

.lab-cta-sub {
	font-size: 1.05rem;
	opacity: 0.92;
	max-width: 32rem;
	margin: 0 auto 1.5rem;
	line-height: 1.6;
}

@media (max-width: 767px) {
	body.lab-home { padding-top: 52px; }
	.lab-hero { padding: 2.5rem 0 3rem; }
	.navbar-lab .navbar-nav > li > a {
		padding-top: 10px;
		padding-bottom: 10px;
	}
	.navbar-lab .navbar-nav > li > a.lab-nav-cta {
		margin: 8px 0;
		text-align: center;
	}
	.lab-hero-thumbs img { width: 30%; height: 64px; }
	.navbar-lab .navbar-brand .lab-brand-mark {
		max-width: 160px;
		height: 34px;
	}
}


/* Lightbox thumbnail links */
.lab-feature-img-wrap .lab-lightbox,
.lab-project-card-visual--photo .lab-lightbox {
	display: block;
	cursor: zoom-in;
	line-height: 0;
	outline: none;
}
.lab-feature-img-wrap .lab-lightbox:hover img,
.lab-project-card-visual--photo .lab-lightbox:hover img {
	opacity: 0.96;
}
.lab-feature-img-wrap .lab-lightbox:focus-visible,
.lab-project-card-visual--photo .lab-lightbox:focus-visible {
	outline: 2px solid var(--lab-accent);
	outline-offset: 2px;
	border-radius: 4px;
}