/* ==========================================================================
   GoWOW Innovations — Design Tokens
   Palette:
     --ink:      #10131A  deep graphite-navy (dark sections, header, text)
     --paper:    #F7F5EF  warm paper (light section backgrounds)
     --graphite: #1B1F27  body text on paper
     --signal:   #FFB020  signal amber (primary accent — clarity / AI)
     --circuit:  #17A398  circuit teal (secondary accent — product / tech)
     --flag:     #E9502F  coral flag (tertiary — highlights, tags)
   Type:
     Display — 'Space Grotesk' (geometric, tech-forward, used for headlines)
     Body    — 'Source Serif 4' (serif body — warmth & trust, unusual for a tech studio)
     Utility — 'IBM Plex Mono' (labels, stats, eyebrows — engineering register)
   ========================================================================== */

:root {
	--ink: #10131A;
	--ink-soft: #1A1E28;
	--paper: #F7F5EF;
	--paper-dim: #EFEBE0;
	--graphite: #1B1F27;
	--muted: #6B7280;
	--muted-on-dark: #9CA3B0;
	--signal: #FFB020;
	--signal-dim: #7A5417;
	--circuit: #17A398;
	--flag: #E9502F;
	--line: rgba(27, 31, 39, 0.12);
	--line-on-dark: rgba(247, 245, 239, 0.14);

	--font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
	--font-body: 'Source Serif 4', Georgia, serif;
	--font-mono: 'IBM Plex Mono', 'Courier New', monospace;

	--wrap: 1180px;
	--radius: 4px;
	--ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------------------------------- Reset -------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
	margin: 0;
	background: var(--paper);
	color: var(--graphite);
	font-family: var(--font-body);
	font-size: 17px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 {
	font-family: var(--font-display);
	font-weight: 600;
	line-height: 1.1;
	margin: 0 0 0.5em;
	letter-spacing: -0.01em;
}
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

.screen-reader-text {
	position: absolute; width: 1px; height: 1px; overflow: hidden;
	clip: rect(1px,1px,1px,1px); white-space: nowrap;
}
.skip-link {
	position: fixed; top: -60px; left: 12px; background: var(--ink); color: var(--paper);
	padding: 10px 16px; z-index: 999; border-radius: var(--radius); transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; width: auto; height: auto; clip: auto; }

:focus-visible {
	outline: 2px solid var(--signal);
	outline-offset: 3px;
}

.eyebrow {
	font-family: var(--font-mono);
	font-size: 12.5px;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--circuit);
	margin: 0 0 12px;
}

/* ---------------------------------- Buttons ------------------------------ */
.btn {
	display: inline-flex; align-items: center; gap: 8px;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: 15px;
	padding: 13px 24px;
	border-radius: var(--radius);
	border: 1.5px solid transparent;
	transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}
.btn-primary { background: var(--signal); color: var(--ink); }
.btn-primary:hover { transform: translateY(-2px); background: #ffc04d; }
.btn-ghost { border-color: currentColor; }
.btn-ghost:hover { transform: translateY(-2px); background: rgba(0,0,0,0.04); }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
	position: sticky; top: 0; z-index: 100;
	background: rgba(247,245,239,0.9);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--line);
}
.header-inner {
	display: flex; align-items: center; justify-content: space-between;
	height: 76px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand-mark { display: inline-flex; color: var(--signal-dim); }
.brand-word {
	font-family: var(--font-display); font-weight: 700; font-size: 19px;
	letter-spacing: -0.01em; display: flex; flex-direction: column; line-height: 1.05;
}
.brand-word-sub {
	font-family: var(--font-mono); font-weight: 400; font-size: 10px;
	letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
}

.primary-nav .nav-list { display: flex; align-items: center; gap: 6px; }
.primary-nav .nav-list > li { position: relative; }
.primary-nav .nav-list > li > a {
	display: block; padding: 10px 14px; font-family: var(--font-display);
	font-size: 14.5px; font-weight: 500; border-radius: var(--radius);
	transition: color .15s;
}
.primary-nav .nav-list > li > a:hover { color: var(--circuit); }

.sub-menu {
	position: absolute; top: calc(100% + 8px); left: 0; min-width: 230px;
	background: var(--ink); border-radius: 8px; padding: 8px;
	box-shadow: 0 20px 40px rgba(16,19,26,0.25);
	opacity: 0; visibility: hidden; transform: translateY(6px);
	transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
}
.menu-item-has-children:hover .sub-menu,
.menu-item-has-children:focus-within .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu li a {
	display: block; padding: 10px 12px; border-radius: 6px; color: var(--paper);
	font-family: var(--font-mono); font-size: 13px;
}
.sub-menu li a:hover { background: rgba(255,255,255,0.08); color: var(--signal); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
	display: none; flex-direction: column; justify-content: center; gap: 5px;
	width: 40px; height: 40px; background: none; border: none;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero + Signature Pipeline element
   ========================================================================== */
.hero { padding: 88px 0 64px; background: var(--paper); }
.hero-inner { text-align: center; max-width: 880px; margin: 0 auto; }
.hero-title {
	font-size: clamp(34px, 5.4vw, 58px);
	margin-bottom: 22px;
}
.hero-title-alt { color: var(--signal-dim); }
.hero-sub { font-size: 19px; color: var(--muted); max-width: 620px; margin: 0 auto 34px; }
.hero-cta { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; margin-bottom: 64px; }

.pipeline { max-width: 640px; margin: 0 auto; position: relative; }
.pipeline-track {
	position: absolute; top: 7px; left: 0; right: 0; height: 2px; background: var(--line);
}
.pipeline-fill {
	position: absolute; top: 0; left: 0; height: 2px; width: 0%;
	background: linear-gradient(90deg, var(--circuit), var(--signal));
	transition: width 1.4s var(--ease);
}
.pipeline.is-active .pipeline-fill { width: 100%; }
.pipeline-steps { display: flex; justify-content: space-between; position: relative; }
.pipeline-steps li { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.pipeline-dot {
	width: 16px; height: 16px; border-radius: 50%; background: var(--paper);
	border: 2px solid var(--line); position: relative; z-index: 1;
	transition: border-color .4s var(--ease), background .4s var(--ease);
}
.pipeline.is-active .pipeline-dot { border-color: var(--circuit); background: var(--circuit); }
.pipeline.is-active li:last-child .pipeline-dot { border-color: var(--signal); background: var(--signal); }
.pipeline-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* ==========================================================================
   Stat strip
   ========================================================================== */
.stat-strip { background: var(--ink); color: var(--paper); padding: 44px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.stat-grid-3 { grid-template-columns: repeat(3, 1fr); }
.stat { text-align: center; }
.stat-num, .stat-num-static {
	display: block; font-family: var(--font-display); font-weight: 700;
	font-size: clamp(28px, 4vw, 40px); color: var(--signal);
}
.stat-label { display: block; font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-on-dark); margin-top: 6px; line-height: 1.4; }
.case-stats { margin-bottom: 0; }

/* ==========================================================================
   Sections generic
   ========================================================================== */
.section { padding: 92px 0; }
.section-title { font-size: clamp(28px, 3.6vw, 40px); max-width: 680px; }
.section-sub { color: var(--muted); font-size: 18px; max-width: 620px; margin-top: -6px; margin-bottom: 44px; }

/* Services */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 24px; }
.service-card {
	background: #fff; border: 1px solid var(--line); border-radius: 10px;
	padding: 28px 24px; transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(16,19,26,0.08); }
.service-index {
	font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
	color: var(--flag); display: inline-block; margin-bottom: 14px;
}
.service-card h3 { font-size: 19px; margin-bottom: 10px; }
.service-card p { font-size: 15px; color: var(--muted); margin-bottom: 16px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li {
	font-family: var(--font-mono); font-size: 11.5px; padding: 5px 10px;
	background: var(--paper-dim); border-radius: 100px; color: var(--graphite);
}

/* Solutions tabs */
.tab-buttons { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; }
.tab-btn {
	background: #fff; border: 1px solid var(--line); border-radius: 100px;
	padding: 10px 20px; font-family: var(--font-display); font-weight: 500; font-size: 14px;
	transition: background .18s, border-color .18s, color .18s;
}
.tab-btn.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp .4s var(--ease); }
.tab-panel-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 44px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 40px; }
.tab-panel-grid h3 { font-size: 22px; margin-bottom: 12px; }
.tab-panel-grid p { color: var(--muted); }
.tab-panel-aside { border-left: 1px solid var(--line); padding-left: 32px; }
.aside-label { display: block; font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 4px; }
.aside-value { font-family: var(--font-display); font-size: 26px; font-weight: 700; margin: 0 0 20px; }
.aside-value-sm { font-family: var(--font-display); font-size: 16px; font-weight: 600; margin: 0; }
.check-list li { position: relative; padding-left: 24px; margin-bottom: 10px; color: var(--graphite); }
.check-list li::before {
	content: ''; position: absolute; left: 0; top: 8px; width: 9px; height: 9px;
	background: var(--circuit); border-radius: 2px;
}

@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Products / Case studies */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 24px; }
.product-card {
	background: var(--ink); color: var(--paper); border-radius: 12px; padding: 34px;
	display: flex; flex-direction: column; justify-content: space-between; min-height: 240px;
	transition: transform .22s var(--ease);
}
.product-card:hover { transform: translateY(-6px); }
.product-tag {
	display: inline-block; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em;
	text-transform: uppercase; color: var(--signal); border: 1px solid var(--signal-dim);
	padding: 5px 10px; border-radius: 100px; margin-bottom: 16px;
}
.product-card h3 { font-size: 25px; margin-bottom: 10px; }
.product-card p { color: var(--muted-on-dark); font-size: 15.5px; margin-bottom: 0; }
.product-card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 24px; font-family: var(--font-display); font-weight: 600; color: var(--signal); }
.product-card-link span { transition: transform .18s var(--ease); }
.product-card:hover .product-card-link span { transform: translateX(4px); }

/* Quote */
.quote-section { padding: 60px 0; }
.big-quote {
	font-family: var(--font-display); font-size: clamp(24px, 3.2vw, 36px); font-weight: 500;
	max-width: 780px; margin: 0 auto 18px; text-align: center; line-height: 1.35; color: var(--ink);
}
.quote-attr { text-align: center; font-family: var(--font-mono); font-size: 13px; color: var(--muted); }

/* CTA */
.cta-section { background: var(--ink); color: var(--paper); }
.cta-inner { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(26px, 3.4vw, 36px); }
.cta-inner p { color: var(--muted-on-dark); margin-bottom: 28px; font-size: 17px; }

/* ==========================================================================
   Page hero (About / Contact / Case study / Archive)
   ========================================================================== */
.page-hero { padding: 72px 0 56px; border-bottom: 1px solid var(--line); }
.page-hero-title { font-size: clamp(30px, 4.6vw, 48px); max-width: 760px; }
.page-hero-sub { font-size: 18px; color: var(--muted); max-width: 620px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.two-col h2 { font-size: 26px; }
.two-col p { color: var(--muted); }

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 24px; }
.value-card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 26px; }
.value-card h3 { font-size: 17px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--muted); margin: 0; }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 24px; position: relative; }
.process-step { position: relative; padding-top: 26px; }
.process-step::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--line); }
.process-dot { position: absolute; top: -5px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--signal); }
.process-step h3 { font-size: 18px; margin: 14px 0 8px; }
.process-step p { color: var(--muted); font-size: 14.5px; }

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; }
.contact-info h2 { font-size: 24px; margin-bottom: 20px; }
.contact-list { margin-bottom: 32px; }
.contact-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-label { display: block; font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 4px; }
.contact-list a { font-family: var(--font-display); font-weight: 600; color: var(--circuit); }
.contact-quick-links { display: flex; flex-direction: column; gap: 8px; }
.contact-quick-links a { font-family: var(--font-display); font-weight: 600; font-size: 14.5px; color: var(--ink); }
.contact-quick-links a:hover { color: var(--signal-dim); }

.contact-form { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 36px; }
.form-row { margin-bottom: 20px; }
.form-row.two-up { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 0; }
.form-row.two-up > div { margin-bottom: 20px; }
.form-row label { display: block; font-family: var(--font-mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 8px; }
.optional { text-transform: none; letter-spacing: 0; }
.form-row input, .form-row select, .form-row textarea {
	width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 6px;
	font-family: var(--font-body); font-size: 15px; background: var(--paper); color: var(--graphite);
	transition: border-color .15s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--circuit); outline: none; }
.form-status { margin-top: 16px; font-family: var(--font-mono); font-size: 13.5px; min-height: 18px; }
.form-status.is-success { color: var(--circuit); }
.form-status.is-error { color: var(--flag); }

/* ==========================================================================
   Case study single
   ========================================================================== */
.case-meta { display: flex; gap: 40px; margin-top: 28px; flex-wrap: wrap; }
.case-meta p { font-family: var(--font-display); font-weight: 600; font-size: 16px; margin: 0; }
.case-body-grid { display: grid; grid-template-columns: 1fr 320px; gap: 56px; }
.case-content h2 { font-size: 24px; margin-top: 40px; }
.case-content h2:first-child { margin-top: 0; }
.case-content p { color: var(--graphite); font-size: 17px; }
.case-content .check-list { margin: 18px 0; }
.case-content .check-list li { font-size: 16px; }
.case-sidebar { align-self: start; position: sticky; top: 100px; }
.side-quote {
	background: var(--ink); color: var(--paper); border-radius: 10px; padding: 28px;
	font-family: var(--font-display); font-size: 18px; line-height: 1.4; margin: 0 0 20px;
}
.side-quote cite { display: block; margin-top: 14px; font-family: var(--font-mono); font-size: 12.5px; color: var(--muted-on-dark); font-style: normal; }
.side-cta { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.side-cta h4 { font-size: 16px; margin-bottom: 8px; }
.side-cta p { font-size: 14px; color: var(--muted); margin-bottom: 16px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--ink); color: var(--paper); padding: 72px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { color: var(--muted-on-dark); font-size: 14.5px; max-width: 320px; margin-top: 14px; }
.footer-signal { display: flex; gap: 6px; margin-top: 20px; }
.footer-signal span { width: 8px; height: 8px; border-radius: 50%; background: var(--line-on-dark); }
.footer-signal span:nth-child(1) { background: var(--circuit); }
.footer-signal span:nth-child(2) { background: var(--signal); }
.footer-col h4 { font-size: 13px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted-on-dark); margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 15px; color: var(--paper); }
.footer-col a:hover { color: var(--signal); }
.footer-bottom {
	display: flex; justify-content: space-between; align-items: center;
	border-top: 1px solid var(--line-on-dark); padding: 22px 0; font-size: 13px; color: var(--muted-on-dark);
}
.footer-tag { font-family: var(--font-mono); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
	.reveal { opacity: 1; transform: none; transition: none; }
	.pipeline-fill { transition: none; }
	html { scroll-behavior: auto; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
	.service-grid, .value-grid, .process-grid { grid-template-columns: repeat(2, 1fr); }
	.footer-inner { grid-template-columns: 1fr 1fr; }
	.two-col, .contact-grid, .case-body-grid { grid-template-columns: 1fr; }
	.case-sidebar { position: static; }
}

@media (max-width: 780px) {
	.nav-toggle { display: flex; }
	.primary-nav {
		position: fixed; inset: 76px 0 0 0; background: var(--paper);
		transform: translateX(100%); transition: transform .3s var(--ease);
		overflow-y: auto; padding: 20px 0;
	}
	.primary-nav.is-open { transform: translateX(0); }
	.primary-nav .nav-list { flex-direction: column; align-items: stretch; padding: 0 28px; }
	.primary-nav .nav-list > li > a { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 18px; }
	.sub-menu { position: static; opacity: 1; visibility: visible; transform: none; background: none; box-shadow: none; padding: 0 0 0 16px; display: none; }
	.menu-item-has-children.is-open .sub-menu { display: block; }
	.sub-menu li a { color: var(--graphite); }
	.header-actions .btn { display: none; }

	.stat-grid, .stat-grid-3 { grid-template-columns: repeat(2, 1fr); }
	.service-grid, .value-grid, .process-grid { grid-template-columns: 1fr; }
	.product-grid { grid-template-columns: 1fr; }
	.tab-panel-grid { grid-template-columns: 1fr; padding: 26px; }
	.tab-panel-aside { border-left: none; border-top: 1px solid var(--line); padding-left: 0; padding-top: 24px; }
	.pipeline-steps { flex-wrap: nowrap; }
	.form-row.two-up { grid-template-columns: 1fr; }
	.footer-inner { grid-template-columns: 1fr; }
	.footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
	.section { padding: 64px 0; }
}