/**
 * Knizhkin Dom case — galley-proof / editorial markup aesthetic.
 * Deliberately unlike modern "hero + pillars + swatches + phone" case landings.
 *
 * @package SunnyAgency
 */

:root {
	--kd-ink: #2a2420;
	--kd-muted: #6b625a;
	--kd-line: rgba(42, 36, 32, 0.14);
	--kd-coral: #f86d72;
	--kd-coral-deep: #e2555b;
	--kd-warm: #d2691e;
	--kd-paper: #f3ebe1;
	--kd-sheet: #fffdf9;
	--kd-jacket: #1c1412;
	--kd-serif: "Merriweather", Georgia, "Times New Roman", serif;
	--kd-sans: "Open Sans", "Segoe UI", Arial, Helvetica, sans-serif;
	--kd-max: 1080px;
	--kd-pad: clamp(18px, 4vw, 48px);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body.kd-proof {
	margin: 0;
	color: var(--kd-ink);
	background:
		repeating-linear-gradient(
			0deg,
			transparent,
			transparent 27px,
			rgba(42, 36, 32, 0.035) 28px
		),
		var(--kd-paper);
	font-family: var(--kd-sans);
	font-size: 17px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

.kd-proof img {
	display: block;
	max-width: 100%;
	height: auto;
}

.kd-proof a {
	color: inherit;
}

.kd-proof a:focus-visible,
.kd-proof .all-cases:focus-visible {
	outline: 3px solid var(--kd-coral);
	outline-offset: 3px;
}

.all-cases {
	display: flex;
	align-items: center;
	position: fixed;
	z-index: 120;
	top: 20px;
	right: -300px;
	height: 52px;
	color: #fff !important;
	font-size: 14px;
	text-decoration: none !important;
	box-shadow: 0 0 40px rgba(0, 0, 0, 0.18);
	transition: right 0.5s ease-in-out;
}

.all-cases:hover,
.all-cases:focus,
.all-cases span {
	color: #fff !important;
	text-decoration: none !important;
}

.all-cases.active {
	right: 20px;
}

.kd-run {
	display: none;
	justify-content: space-between;
	padding: 10px var(--kd-pad);
	border-bottom: 1px solid var(--kd-line);
	color: var(--kd-muted);
	font-size: 11px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	background: rgba(255, 253, 249, 0.85);
}

@media (min-width: 900px) {
	.kd-run {
		display: flex;
		position: sticky;
		top: 0;
		z-index: 40;
		backdrop-filter: blur(8px);
	}
}

.kd-sheet {
	width: min(100% - 2 * var(--kd-pad), var(--kd-max));
	margin-inline: auto;
}

.kd-label {
	margin: 0 0 12px;
	color: var(--kd-coral-deep);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.22em;
	text-transform: uppercase;
}

.kd-proof h1,
.kd-proof h2,
.kd-proof h3 {
	margin: 0;
	font-family: var(--kd-serif);
	font-weight: 700;
	line-height: 1.25;
}

.kd-proof h2 {
	font-size: clamp(1.65rem, 3vw, 2.4rem);
}

.kd-proof h3 {
	font-size: 1.25rem;
}

.kd-lede {
	max-width: 40rem;
	margin: 18px 0 0;
	color: var(--kd-muted);
}

/* ——— Book jacket hero (no browser chrome, no two-col shot) ——— */
.kd-jacket {
	position: relative;
	min-height: min(92vh, 820px);
	display: grid;
	grid-template-columns: 1fr 28px;
	background:
		radial-gradient(ellipse 70% 50% at 70% 20%, rgba(248, 109, 114, 0.18), transparent 50%),
		linear-gradient(145deg, #2a1816 0%, var(--kd-jacket) 45%, #0f0b0a 100%);
	color: #f7efe6;
}

.kd-jacket__inner {
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: clamp(48px, 10vw, 120px) clamp(24px, 8vw, 100px);
	max-width: 780px;
}

.kd-jacket__series {
	margin: 0 0 28px;
	color: rgba(247, 239, 230, 0.55);
	font-size: 13px;
	letter-spacing: 0.28em;
	text-transform: uppercase;
}

.kd-jacket__mark {
	display: block;
	width: clamp(140px, 22vw, 220px);
	height: auto;
	margin: 0 0 32px;
	/* Logo is dark — invert for jacket */
	filter: brightness(0) invert(1);
}

.kd-jacket h1 {
	max-width: 14ch;
	font-size: clamp(2rem, 4.5vw, 3.4rem);
	color: #fff;
}

.kd-jacket__deck {
	max-width: 34rem;
	margin: 22px 0 0;
	color: rgba(247, 239, 230, 0.72);
	font-size: 1.05rem;
}

.kd-jacket__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 12px 28px;
	align-items: center;
	margin-top: 40px;
	font-size: 13px;
	letter-spacing: 0.04em;
	color: rgba(247, 239, 230, 0.5);
}

.kd-jacket__meta a {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	padding: 0 22px;
	background: var(--kd-coral);
	color: #fff !important;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-decoration: none !important;
	text-transform: uppercase;
}

.kd-jacket__meta a:hover,
.kd-jacket__meta a:focus {
	background: #ff8186;
}

.kd-jacket__edge {
	background:
		repeating-linear-gradient(
			180deg,
			#f3ebe1 0 6px,
			#e8dccf 6px 7px
		);
	box-shadow: inset 4px 0 12px rgba(0, 0, 0, 0.35);
}

/* ——— Editorial margin notes ——— */
.kd-margin {
	padding: clamp(56px, 8vw, 100px) 0;
}

.kd-margin .kd-sheet {
	display: grid;
	grid-template-columns: 200px 1fr;
	gap: 36px;
	padding: clamp(28px, 4vw, 48px);
	background: var(--kd-sheet);
	border: 1px solid var(--kd-line);
	box-shadow: 0 18px 40px rgba(42, 36, 32, 0.06);
}

.kd-margin__note {
	padding-top: 6px;
	border-top: 3px solid var(--kd-coral);
	color: var(--kd-coral-deep);
	font-family: var(--kd-serif);
	font-size: 0.95rem;
	font-style: italic;
	line-height: 1.45;
}

.kd-margin__note span {
	display: block;
	margin-bottom: 10px;
	font-family: var(--kd-sans);
	font-size: 11px;
	font-style: normal;
	font-weight: 700;
	letter-spacing: 0.18em;
	text-transform: uppercase;
}

.kd-margin__note p {
	margin: 0;
}

.kd-strike,
.kd-keep {
	margin: 22px 0 0;
	padding: 0;
	list-style: none;
}

.kd-strike li,
.kd-keep li {
	margin: 0 0 10px;
	padding-left: 0;
}

.kd-strike s {
	color: var(--kd-muted);
	text-decoration-color: var(--kd-coral);
	text-decoration-thickness: 2px;
}

.kd-keep {
	margin-top: 28px;
	padding-top: 22px;
	border-top: 1px dashed var(--kd-line);
}

.kd-keep b {
	color: var(--kd-coral-deep);
}

/* ——— Printer signature fold ——— */
.kd-sig {
	padding: 0 0 clamp(56px, 8vw, 100px);
}

.kd-sig__sheet {
	padding: clamp(28px, 4vw, 48px);
	background: var(--kd-sheet);
	border: 1px solid var(--kd-line);
}

.kd-sig__fold {
	display: grid;
	grid-template-columns: repeat(6, 1fr);
	gap: 8px;
	margin-top: 36px;
	perspective: 800px;
}

.kd-sig__leaf {
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	min-height: 160px;
	padding: 16px 12px;
	background: #efe6da;
	border: 1px solid rgba(42, 36, 32, 0.18);
	font-family: var(--kd-serif);
	font-size: 0.92rem;
	line-height: 1.3;
	transform: rotateY(-6deg);
	box-shadow: 6px 8px 0 rgba(42, 36, 32, 0.06);
}

.kd-sig__leaf span {
	display: block;
	margin-bottom: auto;
	color: var(--kd-coral);
	font-size: 1.4rem;
	font-weight: 700;
}

.kd-sig__leaf--out {
	background: #e7ddd0;
	opacity: 0.92;
}

.kd-sig__leaf--core {
	background: #fffdf9;
	border-color: var(--kd-coral);
	transform: rotateY(0deg) translateY(-10px);
	box-shadow: 0 14px 28px rgba(248, 109, 114, 0.18);
}

.kd-sig__caption {
	margin: 22px 0 0;
	color: var(--kd-muted);
	font-size: 0.95rem;
}

/* ——— Ink wells ——— */
.kd-inks {
	padding: 0 0 clamp(56px, 8vw, 100px);
}

.kd-inks .kd-sheet {
	padding: clamp(28px, 4vw, 48px);
	background: var(--kd-ink);
	color: #f7efe6;
}

.kd-inks .kd-label {
	color: var(--kd-coral);
}

.kd-inks h2 {
	color: #fff;
}

.kd-inks__row {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 18px;
	margin-top: 36px;
}

.kd-ink {
	margin: 0;
	text-align: center;
}

.kd-ink__well {
	width: 72px;
	height: 72px;
	margin: 0 auto 14px;
	border-radius: 50%;
	box-shadow:
		inset 0 -10px 18px rgba(0, 0, 0, 0.25),
		0 10px 20px rgba(0, 0, 0, 0.25);
}

.kd-ink__well--paper {
	background: #fffdf9;
	box-shadow:
		inset 0 0 0 1px rgba(255, 255, 255, 0.4),
		0 10px 20px rgba(0, 0, 0, 0.25);
}

.kd-ink figcaption {
	display: grid;
	gap: 4px;
}

.kd-ink code {
	font-family: var(--kd-sans);
	font-size: 12px;
	letter-spacing: 0.04em;
	color: #fff;
}

.kd-ink span {
	color: rgba(247, 239, 230, 0.55);
	font-size: 12px;
	line-height: 1.4;
}

.kd-quote {
	margin: 40px 0 0;
	padding: 24px 0 0;
	border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.kd-quote p {
	margin: 0;
	max-width: 42rem;
	font-family: var(--kd-serif);
	font-size: 1.15rem;
	font-style: italic;
	line-height: 1.55;
	color: rgba(247, 239, 230, 0.82);
}

/* ——— Galley proofs with crop marks ——— */
.kd-galley {
	padding: 0 0 clamp(40px, 6vw, 70px);
}

.kd-galley__head {
	width: min(100% - 2 * var(--kd-pad), var(--kd-max));
	margin: 0 auto 42px;
}

.kd-galley__head p:not(.kd-label) {
	max-width: 40rem;
	margin: 14px 0 0;
	color: var(--kd-muted);
}

.kd-galley__item {
	display: grid;
	grid-template-columns: 1.15fr 0.85fr;
	gap: clamp(20px, 3vw, 40px);
	align-items: start;
	width: min(100% - 2 * var(--kd-pad), 1240px);
	margin: 0 auto 56px;
	padding: clamp(18px, 3vw, 28px);
	background: var(--kd-sheet);
	border: 1px solid var(--kd-line);
}

.kd-galley__item--flip {
	grid-template-columns: 0.85fr 1.15fr;
}

.kd-galley__item--flip .kd-crop {
	order: 2;
}

.kd-galley__item--flip .kd-galley__notes {
	order: 1;
}

.kd-crop {
	position: relative;
	padding: 14px;
	background:
		linear-gradient(#c4b8aa, #c4b8aa) top left / 18px 1px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) top left / 1px 18px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) top right / 18px 1px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) top right / 1px 18px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) bottom left / 18px 1px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) bottom left / 1px 18px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) bottom right / 18px 1px no-repeat,
		linear-gradient(#c4b8aa, #c4b8aa) bottom right / 1px 18px no-repeat,
		#ebe3d8;
}

.kd-crop img {
	width: 100%;
	border: 1px solid rgba(42, 36, 32, 0.12);
	background: #fff;
}

.kd-galley__num {
	margin: 0 0 10px;
	color: var(--kd-coral-deep);
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.18em;
	text-transform: uppercase;
}

.kd-galley__notes h3 {
	margin-bottom: 16px;
}

.kd-galley__notes ol {
	margin: 0;
	padding: 0;
	list-style: none;
}

.kd-galley__notes li {
	display: grid;
	grid-template-columns: 1.4rem 1fr;
	gap: 8px;
	margin: 0 0 14px;
	color: var(--kd-muted);
	font-size: 0.98rem;
}

.kd-galley__notes i {
	color: var(--kd-coral);
	font-style: normal;
	font-weight: 700;
}

.kd-galley__pair {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 24px;
	width: min(100% - 2 * var(--kd-pad), 1240px);
	margin: 0 auto 56px;
}

.kd-galley__pair figure {
	margin: 0;
	padding: 16px;
	background: var(--kd-sheet);
	border: 1px solid var(--kd-line);
}

.kd-galley__pair figcaption {
	margin-top: 12px;
	color: var(--kd-muted);
	font-size: 0.95rem;
}

.kd-galley__pair figcaption b {
	display: block;
	margin-bottom: 4px;
	color: var(--kd-ink);
	font-family: var(--kd-serif);
	font-size: 1.05rem;
}

/* ——— Pocket edition ——— */
.kd-pocket {
	padding: clamp(48px, 7vw, 90px) 0;
	background: #231c19;
	color: #f7efe6;
}

.kd-pocket__stage {
	display: grid;
	grid-template-columns: 280px 1fr;
	gap: clamp(28px, 5vw, 64px);
	align-items: center;
	width: min(100% - 2 * var(--kd-pad), var(--kd-max));
	margin-inline: auto;
}

.kd-pocket__frame {
	position: relative;
	padding: 12px;
	background: #0f0c0b;
	border: 1px solid rgba(247, 239, 230, 0.12);
	transform: rotate(-2deg);
	box-shadow: 18px 24px 0 rgba(248, 109, 114, 0.2);
}

.kd-pocket__frame::before {
	content: "А6 · карман";
	position: absolute;
	top: -28px;
	left: 0;
	color: var(--kd-coral);
	font-size: 11px;
	font-weight: 700;
	letter-spacing: 0.2em;
	text-transform: uppercase;
}

.kd-pocket .kd-label {
	color: var(--kd-coral);
}

.kd-pocket h2 {
	color: #fff;
}

.kd-pocket__text p:not(.kd-label) {
	margin: 16px 0 0;
	color: rgba(247, 239, 230, 0.7);
}

.kd-pocket__text ul {
	margin: 28px 0 0;
	padding: 0;
	list-style: none;
}

.kd-pocket__text li {
	padding: 12px 0;
	border-top: 1px solid rgba(247, 239, 230, 0.12);
	color: rgba(247, 239, 230, 0.78);
}

/* ——— Colophon ——— */
.kd-colophon {
	padding: clamp(56px, 8vw, 100px) 0 clamp(40px, 6vw, 70px);
}

.kd-colophon__block {
	width: min(100% - 2 * var(--kd-pad), 720px);
	margin: 0 auto;
	padding: clamp(28px, 4vw, 40px);
	background: var(--kd-sheet);
	border: 1px solid var(--kd-line);
	text-align: center;
}

.kd-colophon__block > p:not(.kd-label):not(.kd-colophon__link) {
	margin: 16px auto 0;
	max-width: 38rem;
	color: var(--kd-muted);
}

.kd-colophon__block dl {
	display: grid;
	gap: 12px;
	margin: 32px auto 0;
	padding: 24px 0 0;
	border-top: 1px solid var(--kd-line);
	text-align: left;
	max-width: 28rem;
}

.kd-colophon__block dl div {
	display: grid;
	grid-template-columns: 110px 1fr;
	gap: 12px;
	font-size: 0.95rem;
}

.kd-colophon__block dt {
	color: var(--kd-muted);
}

.kd-colophon__block dd {
	margin: 0;
	font-family: var(--kd-serif);
}

.kd-colophon__link {
	margin: 28px 0 0;
	font-family: var(--kd-serif);
	font-size: 1.1rem;
}

.kd-colophon__link a {
	color: var(--kd-coral-deep);
	font-weight: 700;
	text-decoration: underline;
	text-underline-offset: 3px;
}

.kd-colophon__footer {
	width: min(100% - 2 * var(--kd-pad), var(--kd-max));
	margin: 48px auto 0;
	padding-top: 28px;
	border-top: 1px solid var(--kd-line);
}

.kd-colophon__footer > p {
	margin: 0 0 18px;
	font-family: var(--kd-serif);
	font-size: 1.25rem;
}

.kd-colophon__actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
}

.kd-mark-link {
	color: var(--kd-coral-deep) !important;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-decoration: none !important;
	border-bottom: 2px solid var(--kd-coral);
}

.kd-mark-link:hover,
.kd-mark-link:focus {
	border-bottom-color: var(--kd-ink);
}

/* ——— Responsive ——— */
@media (max-width: 980px) {
	.kd-jacket {
		grid-template-columns: 1fr;
	}

	.kd-jacket__edge {
		height: 18px;
	}

	.kd-margin .kd-sheet,
	.kd-galley__item,
	.kd-galley__item--flip,
	.kd-galley__pair,
	.kd-inks__row,
	.kd-pocket__stage,
	.kd-sig__fold {
		grid-template-columns: 1fr;
	}

	.kd-galley__item--flip .kd-crop,
	.kd-galley__item--flip .kd-galley__notes {
		order: initial;
	}

	.kd-sig__leaf {
		min-height: 88px;
		transform: none;
	}

	.kd-sig__leaf--core {
		transform: none;
	}

	.kd-margin__note {
		border-top: 0;
		border-left: 3px solid var(--kd-coral);
		padding: 0 0 0 14px;
	}

	.kd-inks__row {
		grid-template-columns: repeat(3, 1fr);
	}

	.kd-pocket__frame {
		max-width: 260px;
		margin: 36px auto 0;
	}
}

@media (max-width: 640px) {
	.kd-inks__row {
		grid-template-columns: 1fr 1fr;
	}

	.kd-colophon__block dl div {
		grid-template-columns: 1fr;
		gap: 2px;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	.all-cases {
		transition: none;
	}
}