/* =============================================================
   VINCI — Integrated Engineering for Advanced Manufacturing
   Design language: adapted from the VINCI capability deck —
   cream/navy sections in rhythmic alternation, purple accent
   marking the pivotal step in every sequence.
   ============================================================= */

@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
	/* Light (cream) sections */
	--cream: #d8d4c8;
	--cream-card: #eeece4;
	--tan-line: #bdb8aa;
	--ink: #222224;
	--warm-gray: #6c6b67;

	/* Dark (navy) sections */
	--navy: #192131;
	--navy-panel: #252f42;
	--navy-line: #3b4459;
	--fog: #c7c8cc;
	--slate: #8891a0;

	/* Shared accent */
	--purple: #9a71e8;
	--purple-dim: #7857bd;
	--white: #ffffff;

	--font-display: "Manrope", sans-serif;
	--font-body: "Inter", sans-serif;
	--font-mono: "IBM Plex Mono", monospace;

	--pad: clamp(20px, 4vw, 56px);
}

* {
	box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
	* {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
		scroll-behavior: auto !important;
	}
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--cream);
	color: var(--ink);
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

img {
	max-width: 100%;
	display: block;
}
a {
	color: inherit;
	text-decoration: none;
}
::selection {
	background: var(--purple);
	color: var(--white);
}

h1,
h2,
h3,
h4 {
	font-family: var(--font-display);
	font-weight: 700;
	line-height: 1.15;
	margin: 0;
	letter-spacing: -0.01em;
}
p {
	margin: 0;
}

/* ---------- Section shells ---------- */

.section {
	padding: clamp(64px, 9vw, 120px) var(--pad);
}
.section.on-cream {
	background: var(--cream);
	color: var(--ink);
}
.section.on-navy {
	background: var(--navy);
	color: var(--white);
}
.section.on-cream-card {
	background: var(--cream-card);
	color: var(--ink);
}

.wrap {
	max-width: 1180px;
	margin: 0 auto;
}

.kicker {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 16px;
}
.on-cream .kicker,
.on-cream-card .kicker {
	color: var(--purple-dim);
}
.on-navy .kicker {
	color: var(--purple);
}
.kicker::before {
	content: "";
	width: 20px;
	height: 1px;
	background: currentColor;
	display: inline-block;
}

.lede {
	max-width: 640px;
	font-size: 1.05rem;
}
.on-cream .lede,
.on-cream-card .lede {
	color: var(--warm-gray);
}
.on-navy .lede {
	color: var(--fog);
}

/* ---------- Nav ---------- */

.nav {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px var(--pad);
	background: rgba(25, 33, 49, 0.88);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-mark {
	display: flex;
	align-items: center;
}
.logo-img {
	height: 24px;
	width: auto;
	display: block;
}

.company-img {
	display: block;
	margin: auto;
	width: 50%;
}

.nav-links {
	display: flex;
	gap: 28px;
	list-style: none;
	margin: 0;
	padding: 0;
	font-family: var(--font-mono);
	font-size: 11.5px;
	letter-spacing: 0.04em;
	text-transform: uppercase;
}
.nav-links a {
	color: var(--fog);
	position: relative;
	padding-bottom: 4px;
	transition: color 0.2s ease;
}
.nav-links a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 0%;
	height: 1px;
	background: var(--purple);
	transition: width 0.25s ease;
}
.nav-links a:hover,
.nav-links a.active {
	color: var(--white);
}
.nav-links a:hover::after,
.nav-links a.active::after {
	width: 100%;
}

.nav-cta {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	border: 1px solid var(--purple);
	padding: 10px 18px;
	color: var(--white);
	background: var(--purple);
	transition: all 0.2s ease;
	white-space: nowrap;
}
.nav-cta:hover {
	background: transparent;
	color: var(--purple);
}

.nav-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: none;
	cursor: pointer;
	padding: 6px;
}
.nav-toggle span {
	width: 22px;
	height: 1px;
	background: var(--white);
}

/* ---------- Buttons ---------- */

.btn {
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	padding: 15px 26px;
	border: 1px solid var(--ink);
	transition: all 0.2s ease;
	cursor: pointer;
	background: none;
	color: var(--ink);
	display: inline-block;
}
.btn-primary {
	background: var(--purple);
	border-color: var(--purple);
	color: var(--white);
}
.btn-primary:hover {
	background: transparent;
	color: var(--purple);
}
.on-navy .btn {
	border-color: var(--fog);
	color: var(--white);
}
.on-navy .btn-primary {
	background: var(--purple);
	border-color: var(--purple);
	color: var(--white);
}
.on-navy .btn-primary:hover {
	background: transparent;
	color: var(--purple);
}
.on-navy .btn-ghost:hover {
	border-color: var(--purple);
	color: var(--purple);
}
.btn-ghost:hover {
	border-color: var(--purple);
	color: var(--purple);
}

/* ---------- Hero ---------- */

.hero {
	padding-top: clamp(140px, 18vw, 190px);
	min-height: 92vh;
	display: flex;
	align-items: center;
	text-align: center;
}
.hero-inner {
	max-width: 880px;
	margin: 0 auto;
}
.hero h1 {
	font-size: clamp(2.3rem, 5vw, 3.6rem);
	margin: 18px 0 22px;
}
.hero .subline {
	font-family: var(--font-mono);
	font-size: 12.5px;
	letter-spacing: 0.05em;
	color: var(--fog);
	margin-bottom: 26px;
}
.hero .subline .dot {
	color: var(--purple);
	margin: 0 10px;
}
.hero .lede {
	margin: 0 auto 14px;
}
.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.14em;
	color: var(--slate);
	margin-top: 30px;
}
.hero-badge::before {
	content: "";
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--purple);
}
.hero-actions {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 38px;
}

/* ---------- Opportunity cards ---------- */

.opp-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1px;
	background: var(--tan-line);
	border: 1px solid var(--tan-line);
	margin-top: 44px;
}
.opp-card {
	background: var(--cream-card);
	padding: 30px 26px;
}
.opp-card .need {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--warm-gray);
	margin-bottom: 12px;
}
.opp-card h3 {
	font-size: 1.05rem;
	margin-bottom: 10px;
}
.opp-card p {
	color: var(--warm-gray);
	font-size: 0.92rem;
}

/* ---------- Numbered process chain (signature element) ---------- */

.chain {
	display: flex;
	align-items: flex-start;
	gap: 0;
	margin-top: 50px;
	overflow-x: auto;
	padding-bottom: 8px;
}
.chain-step {
	flex: 1;
	min-width: 150px;
	position: relative;
	padding-right: 24px;
}
.chain-step:not(:last-child)::after {
	content: "";
	position: absolute;
	top: 17px;
	left: 34px;
	width: calc(100% - 34px);
	height: 1px;
	background: var(--tan-line);
}
.on-navy .chain-step:not(:last-child)::after {
	background: var(--navy-line);
}
.chain-num {
	width: 34px;
	height: 34px;
	border-radius: 50%;
	border: 1px solid var(--tan-line);
	display: flex;
	align-items: center;
	justify-content: center;
	font-family: var(--font-mono);
	font-size: 12px;
	margin-bottom: 16px;
	background: var(--cream);
	position: relative;
	z-index: 1;
}
.on-navy .chain-num {
	border-color: var(--navy-line);
	background: var(--navy);
	color: var(--fog);
}
.chain-step.is-final .chain-num {
	background: var(--purple);
	border-color: var(--purple);
	color: var(--white);
}
.chain-label {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 0.98rem;
	margin-bottom: 8px;
}
.chain-desc {
	font-size: 0.85rem;
}
.on-cream .chain-desc {
	color: var(--warm-gray);
}
.on-navy .chain-desc {
	color: var(--slate);
}

/* ---------- Four capabilities (pillars) ---------- */

.pillar-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 1px;
	background: var(--navy-line);
	border: 1px solid var(--navy-line);
	margin-top: 50px;
}
.pillar-card {
	background: var(--navy);
	padding: 34px 28px;
	transition: background 0.25s ease;
}
.pillar-card:hover {
	background: var(--navy-panel);
}
.pillar-card .no {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--purple);
	margin-bottom: 16px;
	display: block;
}
.pillar-card h3 {
	font-size: 1.08rem;
	margin-bottom: 12px;
	color: var(--white);
}
.pillar-card p {
	color: var(--slate);
	font-size: 0.9rem;
}

/* ---------- Capability matrix (services) ---------- */

.matrix {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
	gap: 1px;
	background: var(--tan-line);
	border: 1px solid var(--tan-line);
	margin-top: 50px;
}
.matrix-col {
	background: var(--cream-card);
	padding: 28px 24px;
}
.matrix-col h4 {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--purple-dim);
	margin-bottom: 18px;
}
.matrix-col ul {
	margin: 0;
	padding: 0;
	list-style: none;
}
.matrix-col li {
	font-size: 0.9rem;
	color: var(--ink);
	padding: 9px 0;
	border-top: 1px solid var(--tan-line);
}
.matrix-col li:first-child {
	border-top: none;
}

/* ---------- Solutions ---------- */

.solutions-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 24px;
	margin-top: 50px;
}
.solution-card {
	background: var(--cream-card);
	border: 1px solid var(--tan-line);
	padding: 30px 26px;
}
.solution-card h3 {
	font-size: 1.1rem;
	margin-bottom: 14px;
}
.solution-tags {
	font-family: var(--font-mono);
	font-size: 10.5px;
	color: var(--purple-dim);
	letter-spacing: 0.02em;
	margin-bottom: 14px;
	line-height: 1.8;
}

/* ---------- About / values ---------- */

.about-grid {
	display: grid;
	grid-template-columns: 0.9fr 1.1fr;
	gap: 60px;
	align-items: start;
}
.value-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 12px;
}
.tag {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.02em;
	padding: 8px 13px;
	border: 1px solid var(--tan-line);
	color: var(--warm-gray);
}

.why-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 30px;
	margin-top: 44px;
}
.why-item .no {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--purple-dim);
	margin-bottom: 10px;
	display: block;
}
.why-item h4 {
	font-size: 1rem;
	margin-bottom: 8px;
}
.why-item p {
	color: var(--warm-gray);
	font-size: 0.88rem;
}

/* ---------- Industries ---------- */

#industries .wrap > .kicker {
	justify-content: center;
}
#industries .wrap > h2,
#industries .wrap > p.lede {
	text-align: center;
	margin-left: auto;
	margin-right: auto;
}

.industry-list {
	margin: 46px auto 0;
	max-width: 900px;
	border-top: 1px solid var(--tan-line);
}
.industry-row {
	border-bottom: 1px solid var(--tan-line);
	cursor: pointer;
}
.industry-row summary {
	list-style: none;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 22px 4px;
	gap: 20px;
}
.industry-row summary::-webkit-details-marker {
	display: none;
}
.industry-row summary .idx {
	font-family: var(--font-mono);
	font-size: 12px;
	color: var(--purple-dim);
	width: 40px;
	flex-shrink: 0;
}
.industry-row summary .ind-name {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 1.1rem;
}
.industry-row summary .plus {
	font-family: var(--font-mono);
	color: var(--warm-gray);
	font-size: 18px;
	transition: transform 0.25s ease;
}
.industry-row[open] summary .plus {
	transform: rotate(45deg);
	color: var(--purple);
}
.industry-body {
	padding: 0 4px 28px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 30px;
	max-width: 680px;
	margin: 0 auto;
	text-align: center;
}
.industry-body > div:empty {
	display: none;
}
.industry-body:has(> div:empty) {
	grid-template-columns: 1fr;
}
.industry-body h4 {
	font-size: 0.9rem;
	color: var(--purple-dim);
	margin-bottom: 10px;
	font-family: var(--font-mono);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}
.industry-body p {
	color: var(--warm-gray);
	font-size: 0.92rem;
	margin-bottom: 14px;
}
.industry-body ul {
	margin: 0 auto;
	padding-left: 18px;
	color: var(--warm-gray);
	font-size: 0.9rem;
	display: inline-block;
	text-align: left;
}
.industry-body li {
	margin-bottom: 6px;
}

/* ---------- Engagement case (illustrative) ---------- */

.case-frame {
	display: grid;
	grid-template-columns: 1fr 1.3fr;
	gap: 50px;
	margin-top: 44px;
}
.case-callouts {
	display: grid;
	gap: 18px;
	align-content: start;
}
.callout {
	background: var(--navy-panel);
	border: 1px solid var(--navy-line);
	padding: 22px;
}
.callout .label {
	font-family: var(--font-mono);
	font-size: 10.5px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--purple);
	margin-bottom: 8px;
	display: block;
}
.callout p {
	color: var(--fog);
	font-size: 0.9rem;
}
.case-steps {
	display: grid;
	gap: 2px;
	background: var(--navy-line);
	border: 1px solid var(--navy-line);
}
.case-step {
	background: var(--navy);
	padding: 16px 20px;
	display: flex;
	align-items: baseline;
	gap: 16px;
}
.case-step.is-final {
	background: var(--purple-dim);
}
.case-step .n {
	font-family: var(--font-mono);
	font-size: 12px;
	color: var(--purple);
	flex-shrink: 0;
}
.case-step.is-final .n {
	color: var(--white);
}
.case-step .t {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 0.95rem;
	color: var(--white);
}
.case-outcome {
	margin-top: 24px;
	color: var(--fog);
	font-size: 0.95rem;
	border-top: 1px solid var(--navy-line);
	padding-top: 20px;
}

/* ---------- Experience / clients ---------- */

.client-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1px;
	background: var(--navy);
	/* border: 1px solid var(--tan-line); */
	margin-top: 44px;
}
.client-cell {
	background: var(--cream-card);
	padding: 26px 18px;
	display: flex;
	justify-content: center;
	font-family: var(--font-mono);
	font-size: 13px;
	color: var(--warm-gray);
	text-align: center;
	transition:
		color 0.2s ease,
		background 0.2s ease;
}
.client-cell:hover {
	color: var(--ink);
	background: var(--cream);
}
.client-note {
	margin-top: 18px;
	color: var(--warm-gray);
	font-size: 12px;
	font-family: var(--font-mono);
}

/* ---------- Insights ---------- */

.insight-card {
	border: 1px solid var(--tan-line);
	background: var(--cream-card);
	padding: 38px;
	margin-top: 44px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 30px;
	flex-wrap: wrap;
}
.insight-card p {
	color: var(--warm-gray);
	max-width: 520px;
}

/* ---------- Ways to engage ---------- */

.engage-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 1px;
	background: var(--tan-line);
	border: 1px solid var(--tan-line);
	margin-top: 46px;
}
.engage-card {
	background: var(--cream-card);
	padding: 28px 24px;
}
.engage-card .no {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--purple-dim);
	display: block;
	margin-bottom: 12px;
}
.engage-card h3 {
	font-size: 1rem;
	margin-bottom: 6px;
}
.engage-card .sub {
	font-size: 0.85rem;
	color: var(--warm-gray);
	margin-bottom: 16px;
}
.engage-card ul {
	margin: 0;
	padding-left: 16px;
	font-size: 0.85rem;
	color: var(--warm-gray);
}
.engage-card li {
	margin-bottom: 6px;
}
.engage-footer {
	margin-top: 28px;
	border: 1px solid var(--tan-line);
	background: var(--navy);
	color: var(--white);
	padding: 22px 26px;
	font-size: 0.95rem;
}

/* ---------- Final CTA ---------- */

.final-cta {
	text-align: center;
}
.final-cta h2 {
	font-size: clamp(1.9rem, 4vw, 2.7rem);
	max-width: 720px;
	margin: 0 auto 18px;
}
.final-cta .lede {
	margin: 0 auto 30px;
}
.final-cta .subline {
	font-family: var(--font-mono);
	letter-spacing: 0.08em;
	font-size: 13px;
	color: var(--purple);
	margin-bottom: 22px;
	text-transform: uppercase;
}

/* ---------- Contact ---------- */

.contact-grid {
	display: grid;
	grid-template-columns: 0.9fr 1.1fr;
	gap: 60px;
}
.contact-info dl {
	margin: 30px 0 0;
	display: grid;
	gap: 18px;
}
.contact-info dt {
	font-family: var(--font-mono);
	font-size: 10.5px;
	color: var(--slate);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	margin-bottom: 4px;
}
.contact-info dd {
	margin: 0;
	font-size: 0.98rem;
	color: var(--white);
}
.contact-tags {
	font-family: var(--font-mono);
	font-size: 10.5px;
	letter-spacing: 0.05em;
	color: var(--slate);
	margin-top: 26px;
	text-transform: uppercase;
}

.form-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}
.form-grid .full {
	grid-column: 1 / -1;
}
label {
	font-family: var(--font-mono);
	font-size: 10.5px;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--slate);
	display: block;
	margin-bottom: 8px;
}
input,
textarea {
	width: 100%;
	background: var(--navy-panel);
	border: 1px solid var(--navy-line);
	color: var(--white);
	font-family: var(--font-body);
	font-size: 0.95rem;
	padding: 12px 14px;
}
input::placeholder,
textarea::placeholder {
	color: var(--slate);
}
input:focus,
textarea:focus {
	outline: none;
	border-color: var(--purple);
}
textarea {
	resize: vertical;
	min-height: 100px;
}

/* ---------- Footer ---------- */

footer {
	padding: 34px var(--pad);
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 16px;
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--warm-gray);
	letter-spacing: 0.03em;
	background: var(--cream);
	border-top: 1px solid var(--tan-line);
}

/* ---------- Reveal on scroll ---------- */

.reveal {
	opacity: 0;
	transform: translateY(18px);
	transition:
		opacity 0.6s ease,
		transform 0.6s ease;
}
.reveal.in {
	opacity: 1;
	transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
	.nav-links,
	.nav-cta {
		display: none;
	}
	.nav-toggle {
		display: flex;
	}
	.nav.open .nav-links {
		display: flex;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--navy);
		flex-direction: column;
		padding: 24px var(--pad) 30px;
		border-bottom: 1px solid var(--navy-line);
		gap: 18px;
	}
	.nav.open .nav-cta {
		display: inline-block;
		margin: 0 var(--pad) 24px;
		text-align: center;
	}
	.about-grid,
	.contact-grid,
	.case-frame {
		grid-template-columns: 1fr;
	}
	.opp-grid {
		grid-template-columns: 1fr;
	}
	.chain {
		flex-direction: column;
		gap: 26px;
	}
	.chain-step {
		padding-right: 0;
	}
	.chain-step:not(:last-child)::after {
		display: none;
	}
	.industry-body {
		grid-template-columns: 1fr;
	}
	.form-grid {
		grid-template-columns: 1fr;
	}
	.client-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}