:root {
	--bg: #F5F1E8;
	--surface: #FFFDF8;
	--muted-surface: #EEE7DA;
	--blue: #2F5D8C;
	--red: #B64533;
	--yellow: #D9A21B;
	--black: #1A1A1A;
	--white: #FFFFFF;
	--line: rgba(26, 26, 26, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	font-family: 'Manrope', sans-serif;
	background:
		radial-gradient(circle at top left, rgba(217, 162, 27, 0.12), transparent 24%),
		radial-gradient(circle at 88% 10%, rgba(47, 93, 140, 0.12), transparent 28%),
		linear-gradient(180deg, #f7f2e9 0%, #f5f1e8 34%, #f2ece0 100%);
	color: var(--black);
	line-height: 1.6;
	margin: 0;
	padding: 0;
}

.container {
	max-width: 1240px;
	margin: 0 auto;
	padding: 7rem 2rem 5rem;
}

.nav-content {
	max-width: 1240px;
	margin: 0 auto;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0 2rem;
	gap: 1rem;
}

.back-link {
	text-decoration: none;
	color: var(--black);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 1px;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.9rem;
}

.container > header {
	margin-bottom: 4.5rem;
	border-bottom: 2px solid var(--line);
	padding-bottom: 1.5rem;
}

.site-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	background: rgba(245, 241, 232, 0.9);
	backdrop-filter: blur(12px);
	border-bottom: 2px solid var(--black);
}

.site-header__inner {
	max-width: 1200px;
	margin: 0 auto;
	padding: 1rem 2rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 2rem;
}

.site-brand {
	color: var(--black);
	text-decoration: none;
	font-weight: 800;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.site-brand span {
	color: var(--red);
}

.site-nav {
	display: flex;
	gap: 2rem;
	flex-wrap: wrap;
}

.site-nav__link {
	text-decoration: none;
	color: var(--black);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	border-bottom: 2px solid transparent;
	padding-bottom: 0.2rem;
}

.site-nav__link:hover,
.site-nav__link.is-active {
	border-color: var(--red);
	color: var(--red);
}

.site-footer {
	margin-top: 10rem;
	background: var(--black);
	color: var(--white);
	padding: 5rem 2rem;
	text-align: center;
}

.site-footer__inner {
	max-width: 1200px;
	margin: 0 auto;
}

.site-footer__brand {
	font-size: 2.5rem;
	text-transform: uppercase;
	font-weight: 800;
	margin-bottom: 3rem;
}

.site-footer__nav {
	display: flex;
	justify-content: center;
	gap: 2rem;
	flex-wrap: wrap;
	text-transform: uppercase;
	font-weight: 800;
	font-size: 0.9rem;
	letter-spacing: 1px;
}

.site-footer__nav a {
	color: var(--white);
	text-decoration: none;
	border-bottom: 2px solid transparent;
	transition: all 0.2s;
}

.site-footer__nav a:hover {
	border-color: var(--red);
	color: var(--yellow);
}

.site-footer__meta {
	margin-top: 4rem;
	opacity: 0.6;
	font-size: 0.8rem;
	color: #F5F1E8;
	letter-spacing: 1px;
}

.num {
	display: inline-block;
	background: var(--black);
	color: var(--white);
	padding: 0.2rem 0.8rem;
	font-weight: 800;
	font-size: 0.95rem;
	margin-bottom: 1.5rem;
}

h1 {
	font-size: clamp(3rem, 10vw, 5.5rem);
	font-weight: 800;
	line-height: 0.9;
	margin: 0;
	text-transform: uppercase;
	letter-spacing: -2px;
}

.tagline {
	font-size: clamp(1.25rem, 2vw, 1.8rem);
	color: var(--blue);
	font-weight: 300;
	margin-top: 1.25rem;
	max-width: 800px;
}

.power-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.75rem;
	margin-bottom: 4rem;
}

.card,
.process-strip,
.contrast-box,
.ki-deep-dive {
	box-shadow: 0 14px 34px rgba(17, 17, 17, 0.07);
}

.card {
	border: 3px solid var(--black);
	padding: 2.5rem;
	background: var(--surface);
	position: relative;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
	transform: translate(-4px, -4px);
	box-shadow: 10px 10px 0 var(--black);
}

.card h2 {
	text-transform: uppercase;
	font-size: 1.2rem;
	margin-top: 0;
	margin-bottom: 1.5rem;
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.card h2::before {
	content: '';
	width: 12px;
	height: 12px;
	background: var(--red);
}

.process-strip {
	grid-column: 1 / -1;
	background: var(--black);
	color: var(--white);
	padding: 4rem 2.5rem;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 2.5rem;
	border: 3px solid var(--black);
}

.step {
	position: relative;
}

.step-num {
	font-size: 3rem;
	font-weight: 800;
	color: var(--yellow);
	opacity: 0.5;
	line-height: 1;
}

.step h3 {
	font-size: 1.2rem;
	text-transform: uppercase;
	margin: 0.5rem 0;
}

.step p {
	font-size: 0.9rem;
	opacity: 0.82;
	margin: 0;
}

.contrast-box {
	grid-column: 1 / -1;
	display: grid;
	grid-template-columns: 1fr 1fr;
	border: 3px solid var(--black);
}

.contrast-side {
	padding: 3rem;
}

.side-bad {
	background: var(--muted-surface);
	color: #666;
	border-right: 3px solid var(--black);
}

.side-good {
	background: var(--blue);
	color: var(--white);
}

.ki-deep-dive {
	grid-column: 1 / -1;
	background: var(--yellow);
	padding: 3rem;
	border: 3px solid var(--black);
}

.cta-area {
	text-align: center;
	margin-top: 6rem;
}

.cta-button {
	display: inline-block;
	padding: 2rem 4rem;
	background: var(--red);
	color: var(--white);
	text-decoration: none;
	font-weight: 800;
	font-size: 1.4rem;
	text-transform: uppercase;
	border: 3px solid var(--black);
	transition: all 0.2s ease;
}

.cta-button:hover {
	background: var(--black);
	transform: scale(1.03);
}

@media (max-width: 768px) {
	.container {
		padding-left: 1rem;
		padding-right: 1rem;
	}

	.power-grid,
	.process-strip,
	.contrast-box {
		grid-template-columns: 1fr;
	}

	.contrast-side:first-child {
		border-right: 0;
		border-bottom: 3px solid var(--black);
	}

	.site-header__inner {
		padding: 1rem;
		flex-direction: column;
		align-items: flex-start;
	}

	.site-nav {
		gap: 1rem;
	}

	.cta-button {
		width: 100%;
		padding: 1.5rem 1.75rem;
		font-size: 1rem;
	}
}