/*
Theme Name: KN Cyber
Theme URI: https://kncyber.com
Author: KN Cyber
Description: Research-led WordPress theme for KN Cyber. Maroon, ink, paper, and square geometry. Gutenberg-compatible, with templates for research, partnerships, licensing, and advisory.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 8.0
Text Domain: kn-cyber
*/

@font-face {
	font-family: "Hanken Grotesk";
	src: url("assets/fonts/hanken-grotesk-latin.woff2") format("woff2");
	font-weight: 100 900;
	font-style: normal;
	font-display: swap;
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
	font-family: "Hanken Grotesk";
	src: url("assets/fonts/hanken-grotesk-latin-ext.woff2") format("woff2");
	font-weight: 100 900;
	font-style: normal;
	font-display: swap;
	unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
	font-family: "JetBrains Mono";
	src: url("assets/fonts/jetbrains-mono-400.woff2") format("woff2");
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: "JetBrains Mono";
	src: url("assets/fonts/jetbrains-mono-500.woff2") format("woff2");
	font-weight: 500;
	font-style: normal;
	font-display: swap;
}

:root {
	--surface: #ffffff;
	--surface-alt: #f3f2f0;
	--surface-dark: #111113;
	--panel: #111113;
	--matrix-cell: #1c1c20;
	--matrix-cell-2: #35353b;
	--line: #e4e2de;
	--line-strong: #d9d7d4;
	--line-on-dark: #2a2a2e;
	--ink: #111113;
	--ink-muted: #55555c;
	--ink-on-dark: #ffffff;
	--ink-muted-on-dark: #c9c7c3;
	--ink-subtle-on-dark: #a9a9af;
	--maroon: #7b1e2e;
	--maroon-hover: #651726;
	--oxblood: #4e0f1c;
	--accent-text: #7b1e2e;
	--accent-on-dark: #e28a99;
	--node: #c2485c;
	--rose: #f3d9dd;
	--on-maroon: #ffffff;
	--focus: #7b1e2e;
	--font-sans: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
	--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	--radius-none: 0px;
	--container: 1240px;
	--measure: 780px;
	--header-height: 76px;
	--touch-target: 44px;
	--space-2: 8px;
	--space-3: 12px;
	--space-4: 16px;
	--space-6: 24px;
	--space-7: 28px;
	--space-8: 32px;
	--space-10: 40px;
	--space-14: 56px;
	--space-16: 64px;
	--space-24: 96px;
	--gutter: 24px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	background: var(--surface);
	color: var(--ink);
	font-family: var(--font-sans);
	font-size: 17px;
	font-weight: 400;
	line-height: 1.6;
	text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-text); }
a:hover { color: var(--maroon-hover); }
p { margin: 0 0 1rem; }
h1, h2, h3, h4 { text-wrap: balance; }

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

.skip-link {
	position: absolute;
	left: 16px;
	top: -100px;
	z-index: 100;
	background: var(--ink);
	color: var(--ink-on-dark);
	padding: 12px 16px;
	text-decoration: none;
}

.skip-link:focus { top: 12px; }

[id] { scroll-margin-top: calc(var(--header-height) + 12px); }

.kn-wrap {
	width: min(var(--container), calc(100% - (var(--gutter) * 2)));
	margin-inline: auto;
}

.kn-eyebrow {
	margin: 0;
	font-family: var(--font-mono);
	font-size: 13px;
	font-weight: 500;
	line-height: 1.4;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--ink-muted);
}

.kn-eyebrow--accent { color: var(--accent-text); }

sup.kn-tm {
	font-size: 0.45em;
	font-weight: 500;
	letter-spacing: 0;
	line-height: 0;
	margin-left: 0.06em;
}

.kn-display {
	margin: 0;
	font-size: clamp(2.6rem, 5vw, 4.6rem);
	line-height: 1.02;
	font-weight: 600;
	letter-spacing: -0.025em;
}

.kn-title {
	margin: 0;
	font-size: clamp(2rem, 3.4vw, 3rem);
	line-height: 1.08;
	font-weight: 600;
	letter-spacing: -0.02em;
}

.kn-h3 {
	margin: 0;
	font-size: 26px;
	line-height: 1.2;
	font-weight: 600;
}

.kn-lead {
	margin: 0;
	max-width: 34rem;
	font-size: 19px;
	line-height: 1.55;
	color: var(--ink-muted);
}

.kn-prose { max-width: var(--measure); }
.kn-prose p:last-child { margin-bottom: 0; }
.kn-prose a { text-underline-offset: 3px; }
.kn-prose h2 { font-size: 26px; line-height: 1.2; margin: 2rem 0 0.75rem; }
.kn-prose h3 { font-size: 22px; line-height: 1.25; margin: 1.5rem 0 0.5rem; }
.kn-prose ul, .kn-prose ol { padding-left: 1.2rem; }
.kn-prose li { margin: 0.35rem 0; }

.kn-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: var(--touch-target);
	padding: 14px 26px;
	border: 1px solid var(--maroon);
	border-radius: var(--radius-none);
	background: var(--maroon);
	color: var(--on-maroon);
	font-family: var(--font-sans);
	font-size: 16px;
	font-weight: 600;
	line-height: 1.2;
	text-decoration: none;
	cursor: pointer;
	transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.kn-button:hover { background: var(--maroon-hover); border-color: var(--maroon-hover); color: var(--on-maroon); }
.kn-button--ghost { background: transparent; border-color: var(--ink-muted); color: var(--ink); }
.kn-button--ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--surface); }
.kn-button--light { background: var(--ink-on-dark); border-color: var(--ink-on-dark); color: var(--surface-dark); }
.kn-button--light:hover { background: var(--rose); border-color: var(--rose); color: var(--surface-dark); }

.kn-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.kn-band { padding: var(--space-24) 0; }
.kn-band--alt { background: var(--surface-alt); }
.kn-band--dark { background: var(--surface-dark); color: var(--ink-on-dark); }
.kn-band--maroon { background: var(--maroon); color: var(--ink-on-dark); }
.kn-band--oxblood { background: var(--oxblood); color: var(--ink-on-dark); }

.kn-on-dark { color: var(--ink-on-dark); }
.kn-on-dark .kn-eyebrow,
.kn-band--dark .kn-eyebrow,
.kn-band--maroon .kn-eyebrow,
.kn-band--oxblood .kn-eyebrow { color: var(--ink-muted-on-dark); }
.kn-on-dark .kn-eyebrow--accent,
.kn-band--dark .kn-eyebrow--accent { color: var(--accent-on-dark); }
.kn-on-dark .kn-lead,
.kn-band--dark .kn-lead { color: var(--ink-muted-on-dark); }
.kn-band--maroon .kn-lead,
.kn-band--oxblood .kn-lead { color: var(--rose); }
.kn-on-dark .kn-button--ghost,
.kn-band--dark .kn-button--ghost { border-color: var(--ink-subtle-on-dark); color: var(--ink-on-dark); }
.kn-on-dark .kn-button--ghost:hover,
.kn-band--dark .kn-button--ghost:hover { background: var(--ink-on-dark); border-color: var(--ink-on-dark); color: var(--surface-dark); }
.kn-on-dark :focus-visible,
.kn-band--dark :focus-visible,
.kn-band--maroon :focus-visible,
.kn-band--oxblood :focus-visible { outline-color: var(--ink-on-dark); }

.kn-header {
	position: sticky;
	top: 0;
	z-index: 40;
	height: var(--header-height);
	background: var(--surface);
	border-bottom: 1px solid var(--line);
}

.kn-header__inner {
	height: 100%;
	display: flex;
	align-items: center;
	gap: 24px;
}

.kn-logo { display: inline-flex; align-items: center; text-decoration: none; color: inherit; flex: none; }
.kn-logo img { height: 36px; width: auto; }

.kn-nav { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.kn-nav__list { display: flex; align-items: center; gap: 20px; list-style: none; margin: 0; padding: 0; }
.kn-nav__list a {
	color: var(--ink);
	text-decoration: none;
	font-size: 15px;
	font-weight: 500;
	line-height: 1.2;
}
.kn-nav__list a:hover,
.kn-nav__list .current-menu-item > a,
.kn-nav__list .current_page_item > a { color: var(--accent-text); }
.kn-nav__toggle { display: none; }

.kn-hero { padding: var(--space-16) 0 var(--space-24); }
.kn-hero__grid {
	display: grid;
	grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
	gap: var(--space-14);
	align-items: end;
}
.kn-hero__copy { display: flex; flex-direction: column; gap: var(--space-6); align-items: flex-start; }
.kn-hero .kn-display { max-width: 14ch; }

.kn-matrix { display: flex; flex-direction: column; gap: 14px; font-family: var(--font-mono); }
.kn-matrix__grid { display: grid; gap: 5px; }
.kn-matrix__cell { aspect-ratio: 1; background: var(--matrix-cell); }
.kn-matrix__cell.is-2 { background: var(--matrix-cell-2); }
.kn-matrix__cell.is-hot { background: var(--node); }
.kn-matrix__legend {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	font-size: 12px;
	letter-spacing: 0.04em;
	color: var(--ink-subtle-on-dark);
}

@media (prefers-reduced-motion: no-preference) {
	.kn-matrix--live .kn-matrix__cell.is-hot { animation: kn-pulse 3.2s ease-in-out infinite; }
}

@keyframes kn-pulse {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.45; }
}

.kn-split {
	display: grid;
	grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
	gap: var(--space-14);
	align-items: start;
}

.kn-section-head {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: flex-end;
	gap: 16px 32px;
	margin-bottom: var(--space-10);
}

.kn-section-head__intro {
	margin: 0;
	max-width: 26rem;
	font-size: 17px;
	line-height: 1.6;
	color: var(--ink-muted);
}

.kn-band--dark .kn-section-head__intro,
.kn-on-dark .kn-section-head__intro { color: var(--ink-muted-on-dark); }

.kn-grid-3, .kn-grid-2, .kn-grid-4 { display: grid; gap: var(--space-4); }
.kn-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kn-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-6); }
.kn-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.kn-card {
	display: flex;
	flex-direction: column;
	gap: 12px;
	min-height: 210px;
	padding: 28px;
	background: var(--surface);
	border: 1px solid var(--line-strong);
	color: var(--ink);
	text-decoration: none;
	transition: border-color 150ms ease;
}

.kn-card:hover { border-color: var(--maroon); color: var(--ink); }
.kn-card__code {
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 500;
	letter-spacing: 0.04em;
	color: var(--ink-muted);
}
.kn-card__title { font-size: 22px; font-weight: 600; line-height: 1.25; }
.kn-card__desc { font-size: 15px; line-height: 1.55; color: var(--ink-muted); }
.kn-card__more { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--accent-text); }

.kn-research {
	display: flex;
	flex-direction: column;
	min-height: 100%;
	text-decoration: none;
	color: var(--ink-on-dark);
	background: var(--oxblood);
}
.kn-research:hover { color: var(--ink-on-dark); }
.kn-research__art {
	position: relative;
	display: block;
	height: 180px;
	overflow: hidden;
	background-color: var(--oxblood);
	background-image:
		repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 28px),
		repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 28px);
}
.kn-research__node { position: absolute; left: 28%; top: 38%; width: 36px; height: 36px; background: var(--ink-on-dark); }
.kn-research__node::after {
	content: "";
	position: absolute;
	left: 36px;
	top: 18px;
	width: 140px;
	height: 1px;
	background: var(--ink-on-dark);
}
.kn-research__body { display: flex; flex-direction: column; gap: 12px; padding: 32px; }
.kn-research__meta {
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--rose);
}
.kn-research__title { font-size: 28px; font-weight: 600; line-height: 1.15; }
.kn-research__summary { font-size: 16px; line-height: 1.55; color: var(--rose); }
.kn-research__more { margin-top: auto; font-weight: 600; color: var(--ink-on-dark); }

.kn-note {
	display: flex;
	flex-direction: column;
	gap: 10px;
	padding: 24px 0;
	border-top: 2px solid var(--ink);
	color: var(--ink);
	text-decoration: none;
}
.kn-note:hover { color: var(--accent-text); }
.kn-note__meta {
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--ink-muted);
}
.kn-note__title { font-size: 22px; font-weight: 600; line-height: 1.25; }
.kn-note:hover .kn-note__title { color: var(--accent-text); }

.kn-pipeline { list-style: none; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0; padding: 0; border-top: 1px solid var(--line); }
.kn-pipeline li { padding: 20px 16px 0 0; }
.kn-pipeline__n {
	display: block;
	font-family: var(--font-mono);
	font-size: 13px;
	letter-spacing: 0.04em;
	color: var(--accent-text);
	margin-bottom: 8px;
}
.kn-pipeline strong { display: block; font-size: 18px; font-weight: 600; }

.kn-case {
	display: flex;
	flex-direction: column;
	gap: 16px;
	padding: 32px;
	border: 1px solid var(--line-on-dark);
	background: transparent;
}
.kn-case__sector {
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--accent-on-dark);
}
.kn-case h3 { margin: 0; font-size: 22px; line-height: 1.25; }
.kn-case p { margin: 0; font-size: 15px; line-height: 1.55; color: var(--ink-subtle-on-dark); }

.kn-frameworks {
	list-style: none;
	margin: 0;
	padding: 20px 0 0;
	display: flex;
	flex-wrap: wrap;
	gap: 10px 22px;
	border-top: 1px solid var(--line);
	font-family: var(--font-mono);
	font-size: 13px;
	color: var(--ink-muted);
}
.kn-band--dark .kn-frameworks { border-top-color: var(--line-on-dark); color: var(--ink-subtle-on-dark); }

.kn-table { width: 100%; border-collapse: collapse; }
.kn-table th, .kn-table td {
	text-align: left;
	vertical-align: top;
	padding: 16px 16px 16px 0;
	border-top: 1px solid var(--line);
	font-size: 16px;
	line-height: 1.5;
}
.kn-table th { width: 34%; font-weight: 600; }
.kn-band--dark .kn-table th,
.kn-band--dark .kn-table td { border-top-color: var(--line-on-dark); }

.kn-meta-list { list-style: none; margin: 0; padding: 0; }
.kn-meta-list li { padding: 14px 0; border-top: 1px solid var(--line); }
.kn-meta-list span {
	display: block;
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--ink-muted);
	margin-bottom: 4px;
}

.kn-page-hero { padding: var(--space-16) 0 var(--space-10); }
.kn-page-hero .kn-title { max-width: 18ch; margin-top: 12px; }
.kn-page-hero .kn-lead { margin-top: 20px; }

.kn-article-hero { padding: var(--space-16) 0 var(--space-8); background: var(--surface-dark); color: var(--ink-on-dark); }
.kn-article { padding: var(--space-16) 0 var(--space-24); }
.kn-article .kn-prose { font-size: 18px; line-height: 1.7; }

.kn-form { display: flex; flex-direction: column; gap: 16px; }
.kn-field { display: flex; flex-direction: column; gap: 6px; }
.kn-field label { font-size: 15px; font-weight: 600; }
.kn-field input, .kn-field select, .kn-field textarea {
	min-height: var(--touch-target);
	padding: 12px 14px;
	border: 1px solid var(--line-strong);
	border-radius: var(--radius-none);
	background: var(--surface);
	color: var(--ink);
	font: 16px/1.5 var(--font-sans);
}
.kn-field textarea { min-height: 140px; resize: vertical; }
.kn-check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.kn-check input { margin-top: 4px; }
.kn-hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.kn-notice {
	padding: 16px 18px;
	border: 1px solid var(--line-strong);
	background: var(--surface-alt);
	margin-bottom: 20px;
}
.kn-notice--ok { border-color: var(--maroon); }

.kn-aside {
	padding: 28px;
	background: var(--surface-alt);
	border: 1px solid var(--line-strong);
}

.kn-footer { background: var(--surface-dark); color: var(--ink-muted-on-dark); padding: var(--space-16) 0 32px; }
.kn-footer a { color: var(--ink-on-dark); text-decoration: none; }
.kn-footer a:hover { color: var(--accent-on-dark); }
.kn-footer__grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.kn-footer h2 { margin: 0 0 12px; font-size: 15px; letter-spacing: 0.08em; text-transform: uppercase; font-family: var(--font-mono); font-weight: 500; color: var(--ink-subtle-on-dark); }
.kn-footer ul { list-style: none; margin: 0; padding: 0; }
.kn-footer li { margin: 8px 0; font-size: 15px; }
.kn-footer__brand p { max-width: 28rem; font-size: 15px; line-height: 1.55; }
.kn-footer__legal {
	margin-top: 40px;
	padding-top: 20px;
	border-top: 1px solid var(--line-on-dark);
	font-size: 13px;
	color: var(--ink-subtle-on-dark);
	display: flex;
	justify-content: space-between;
	gap: 16px;
	flex-wrap: wrap;
}
.kn-footer__legal a { color: var(--ink-subtle-on-dark); text-decoration: underline; text-underline-offset: 3px; }

.kn-empty { color: var(--ink-muted); }

@media (max-width: 1080px) {
	.kn-nav__toggle {
		display: inline-flex;
		margin-left: auto;
		min-height: var(--touch-target);
		padding: 0 14px;
		border: 1px solid var(--ink);
		background: transparent;
		color: var(--ink);
		font: 600 15px/1 var(--font-sans);
		cursor: pointer;
	}
	.kn-nav {
		display: none;
		position: absolute;
		left: 0;
		right: 0;
		top: var(--header-height);
		background: var(--surface);
		border-bottom: 1px solid var(--line);
		padding: 8px 0 20px;
		flex-direction: column;
		align-items: stretch;
	}
	.kn-nav.is-open { display: flex; }
	.kn-nav__list { flex-direction: column; align-items: stretch; gap: 0; padding: 0 var(--gutter); }
	.kn-nav__list a { display: flex; align-items: center; min-height: var(--touch-target); }
	.kn-nav .kn-button { margin: 8px var(--gutter) 0; }
	.kn-grid-4, .kn-grid-3, .kn-pipeline { grid-template-columns: 1fr 1fr; }
	.kn-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
	:root { --gutter: 16px; --space-24: 64px; }
	.kn-hero__grid, .kn-split, .kn-grid-2, .kn-grid-3, .kn-grid-4, .kn-pipeline, .kn-footer__grid { grid-template-columns: 1fr; }
	.kn-table th { width: auto; display: block; padding-bottom: 0; }
	.kn-table td { display: block; padding-top: 4px; }
	.kn-logo img { height: 30px; }
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { animation: none !important; transition: none !important; }
}