/* =================================================================
   Perspektywa i kierunek rozwoju szkolnictwa wyższego
   Projekt badawczy NdS-II/SN/0396/2023/01 — Uczelnia Łazarskiego
   ================================================================= */

/* --- Design tokens --------------------------------------------- */
:root {
	/* Brand palette (inspired by Uczelnia Łazarskiego visual identity) */
	--color-primary: #8a1538;
	--color-primary-dark: #650f29;
	--color-primary-light: #a83a59;
	--color-accent: #c8a55b;
	--color-accent-dark: #a8853c;

	--color-ink: #1c1b22;
	--color-muted: #5c5c6b;
	--color-bg: #ffffff;
	--color-bg-alt: #f7f4f1;
	--color-bg-dark: #2a1620;
	--color-border: #e6e1db;

	--font-sans:
		"Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

	--maxw: 1180px;
	--radius: 14px;
	--radius-sm: 8px;
	--shadow: 0 10px 30px rgba(28, 27, 34, 0.08);
	--shadow-lg: 0 18px 50px rgba(28, 27, 34, 0.14);

	--header-h: 72px;
	--transition: 0.25s ease;
}

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

html {
	scroll-behavior: smooth;
	/* Offset anchored sections so they are not hidden behind sticky header */
	scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 17px;
	line-height: 1.65;
	color: var(--color-ink);
	background: var(--color-bg);
	-webkit-font-smoothing: antialiased;
}

img {
	max-width: 100%;
	display: block;
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition);
}

a:hover {
	color: var(--color-primary-dark);
	text-decoration: underline;
}

h1,
h2,
h3,
h4 {
	line-height: 1.2;
	font-weight: 700;
	color: var(--color-ink);
	margin: 0 0 0.6em;
}

h2 {
	font-size: clamp(1.6rem, 3vw, 2.3rem);
}

h3 {
	font-size: 1.25rem;
}

p {
	margin: 0 0 1rem;
}

/* --- Accessibility helpers ------------------------------------- */
.skip-link {
	position: absolute;
	left: 8px;
	top: -100px;
	z-index: 1100;
	background: var(--color-primary);
	color: #fff;
	padding: 10px 18px;
	border-radius: var(--radius-sm);
	transition: top var(--transition);
}

.skip-link:focus {
	top: 8px;
	color: #fff;
	text-decoration: none;
}

:focus-visible {
	outline: 3px solid var(--color-accent);
	outline-offset: 2px;
	border-radius: 4px;
}

.visually-hidden {
	position: absolute !important;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* --- Layout ---------------------------------------------------- */
.container {
	width: 100%;
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 0 24px;
}

.section {
	padding: 84px 0;
}

.section--alt {
	background: var(--color-bg-alt);
}

.section__head {
	max-width: 760px;
	margin-bottom: 48px;
}

.section__eyebrow {
	display: inline-block;
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-accent-dark);
	margin-bottom: 12px;
}

.section__lead {
	font-size: 1.1rem;
	color: var(--color-muted);
}

/* --- Buttons --------------------------------------------------- */
.btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 0.97rem;
	font-weight: 600;
	padding: 12px 24px;
	border-radius: 999px;
	border: 2px solid transparent;
	cursor: pointer;
	transition: all var(--transition);
	text-decoration: none;
}

.btn:hover {
	text-decoration: none;
	transform: translateY(-2px);
}

.btn--primary {
	background: var(--color-primary);
	color: #fff;
}

.btn--primary:hover {
	background: var(--color-primary-dark);
	color: #fff;
}

.btn--outline {
	background: transparent;
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.btn--outline:hover {
	background: var(--color-primary);
	color: #fff;
}

.btn--ghost {
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
	border-color: rgba(255, 255, 255, 0.5);
}

.btn--ghost:hover {
	background: #fff;
	color: var(--color-primary);
}

.btn--sm {
	padding: 9px 18px;
	font-size: 0.9rem;
}

.btn--block {
	width: 100%;
	justify-content: center;
}

/* Placeholder links for assets not yet delivered */
.pending {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.85rem;
	color: var(--color-muted);
	background: #efe9e3;
	border: 1px dashed #c9beb2;
	border-radius: var(--radius-sm);
	padding: 6px 12px;
}

/* =================================================================
   Header / navigation
   ================================================================= */
.site-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	height: var(--header-h);
	background: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--color-border);
}

.nav {
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: flex-start;
	gap: 24px;
}

.nav__brand {
	display: flex;
	align-items: center;
	gap: 12px;
	font-weight: 700;
	font-size: 0.95rem;
	color: var(--color-ink);
	white-space: nowrap;
}

.nav__brand:hover {
	text-decoration: none;
	color: var(--color-primary);
}

.nav__brand-mark {
	width: 38px;
	height: 38px;
	border-radius: 10px;
	background: linear-gradient(
		135deg,
		var(--color-primary),
		var(--color-primary-light)
	);
	color: #fff;
	display: grid;
	place-items: center;
	font-weight: 800;
	font-size: 0.95rem;
	flex-shrink: 0;
}

.nav__brand-text small {
	display: block;
	font-weight: 500;
	font-size: 0.72rem;
	color: var(--color-muted);
}

.nav__links {
	display: flex;
	align-items: center;
	gap: 4px;
	list-style: none;
	margin: 0;
	padding: 0;
	flex-wrap: wrap;
	justify-content: flex-end;
}

.nav__links a {
	display: block;
	padding: 8px 12px;
	border-radius: var(--radius-sm);
	color: var(--color-ink);
	font-size: 0.88rem;
	font-weight: 500;
}

.nav__links a:hover {
	background: var(--color-bg-alt);
	color: var(--color-primary);
	text-decoration: none;
}

.nav__toggle {
	display: none;
	background: none;
	border: 0;
	cursor: pointer;
	padding: 8px;
}

.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
	display: block;
	width: 26px;
	height: 2px;
	background: var(--color-ink);
	border-radius: 2px;
	transition:
		transform var(--transition),
		opacity var(--transition);
}

.nav__toggle span::before,
.nav__toggle span::after {
	content: "";
	position: relative;
}

.nav__toggle span::before {
	top: -8px;
}

.nav__toggle span::after {
	top: 6px;
}

.nav__toggle[aria-expanded="true"] span {
	background: transparent;
}

.nav__toggle[aria-expanded="true"] span::before {
	transform: translateY(8px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span::after {
	transform: translateY(-6px) rotate(-45deg);
}

/* =================================================================
   Hero
   ================================================================= */
.hero {
	position: relative;
	color: #fff;
	background:
		linear-gradient(135deg, rgba(101, 15, 41, 0.92), rgba(42, 22, 32, 0.88)),
		url("../img/hero-placeholder.svg") center / cover no-repeat;
	padding: 80px 0 96px;
	overflow: hidden;
}

.hero h1 {
	color: #fff;
	font-size: clamp(2rem, 4.5vw, 3.4rem);
	margin-bottom: 24px;
}

.hero__subtitle {
	font-size: 1.12rem;
	color: rgba(255, 255, 255, 0.9);
	max-width: 700px;
}

.hero__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 10px 22px;
	margin: 24px 0 0;
	font-size: 0.92rem;
	color: rgba(255, 255, 255, 0.85);
}

.hero__meta span {
	display: inline-flex;
	align-items: center;
	gap: 8px;
}

.hero__cta {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
}

.hero__logos {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 16px;
	margin-top: 48px;
	padding-top: 28px;
	border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero__logos .logo-chip {
	background: rgba(255, 255, 255, 0.92);
	color: var(--color-ink);
	border-radius: var(--radius-sm);
	padding: 10px 16px;
	font-size: 0.8rem;
	font-weight: 600;
	min-height: 44px;
	display: inline-flex;
	align-items: center;
}

/* =================================================================
   About + stats
   ================================================================= */
.stats {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 18px;
	margin-top: 16px;
}

.stat {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 26px 20px;
	text-align: center;
	box-shadow: var(--shadow);
}

.stat__num {
	font-size: 2.2rem;
	font-weight: 800;
	color: var(--color-primary);
	line-height: 1;
}

.stat__label {
	display: block;
	margin-top: 8px;
	font-size: 0.9rem;
	color: var(--color-muted);
}

/* =================================================================
   Generic card grids
   ================================================================= */
.grid {
	display: grid;
	gap: 28px;
}

.grid--2 {
	grid-template-columns: repeat(2, 1fr);
}

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

.grid--4 {
	grid-template-columns: repeat(4, 1fr);
}

.card {
	display: flex;
	flex-direction: column;
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--shadow);
	transition:
		transform var(--transition),
		box-shadow var(--transition);
}

.card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-lg);
}

.card__cover {
	aspect-ratio: 3 / 4;
	background: linear-gradient(135deg, #efe9e3, #d9cfc4);
	display: grid;
	place-items: center;
	color: var(--color-muted);
	font-size: 0.85rem;
	text-align: center;
	padding: 16px;
}

.card__cover--wide {
	aspect-ratio: 16 / 9;
}

.card__body {
	padding: 22px;
	display: flex;
	flex-direction: column;
	flex: 1;
}

.card__date {
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--color-accent-dark);
	margin-bottom: 8px;
}

.card__title {
	font-size: 1.08rem;
	margin-bottom: 10px;
}

.card__desc {
	font-size: 0.94rem;
	color: var(--color-muted);
	margin-bottom: 18px;
	flex: 1;
}

.card__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin-top: auto;
}

/* =================================================================
   Monograph
   ================================================================= */
.mono {
	display: grid;
	grid-template-columns: 320px 1fr;
	gap: 48px;
	align-items: start;
}

.mono__cover {
	aspect-ratio: 2 / 3;
	border-radius: var(--radius);
	background: linear-gradient(
		135deg,
		var(--color-primary),
		var(--color-primary-dark)
	);
	color: #fff;
	display: grid;
	place-items: center;
	text-align: center;
	padding: 24px;
	box-shadow: var(--shadow-lg);
}

.mono__meta {
	list-style: none;
	margin: 0 0 24px;
	padding: 0;
}

.mono__meta li {
	padding: 10px 0;
	border-bottom: 1px solid var(--color-border);
	font-size: 0.95rem;
}

.mono__meta strong {
	display: inline-block;
	min-width: 120px;
	color: var(--color-muted);
	font-weight: 600;
}

/* --- Accordion ------------------------------------------------- */
.accordion {
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	overflow: hidden;
	margin-top: 24px;
}

.accordion summary {
	cursor: pointer;
	padding: 16px 20px;
	font-weight: 600;
	background: var(--color-bg-alt);
	list-style: none;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.accordion summary::-webkit-details-marker {
	display: none;
}

.accordion summary::after {
	content: "+";
	font-size: 1.4rem;
	color: var(--color-primary);
}

.accordion[open] summary::after {
	content: "−";
}

.accordion__body {
	padding: 16px 20px;
}

.accordion__body ul {
	columns: 2;
	gap: 32px;
	margin: 0;
	padding-left: 18px;
	font-size: 0.92rem;
	color: var(--color-muted);
}

/* =================================================================
   Timeline (events)
   ================================================================= */
.timeline {
	position: relative;
	margin: 0;
	padding: 0;
	list-style: none;
}

.timeline::before {
	content: "";
	position: absolute;
	left: 15px;
	top: 8px;
	bottom: 8px;
	width: 2px;
	background: var(--color-border);
}

.timeline__item {
	position: relative;
	padding: 0 0 32px 56px;
}

.timeline__item::before {
	content: "";
	position: absolute;
	left: 8px;
	top: 6px;
	width: 16px;
	height: 16px;
	border-radius: 50%;
	background: var(--color-primary);
	border: 3px solid var(--color-bg);
	box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline__date {
	font-size: 0.82rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--color-accent-dark);
}

.timeline__card {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 22px;
	margin-top: 8px;
	box-shadow: var(--shadow);
}

.timeline__card h3 {
	margin-bottom: 10px;
}

/* =================================================================
   Partners
   ================================================================= */
.partner {
	display: flex;
	gap: 20px;
	align-items: flex-start;
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 24px;
}

.partner__logo {
	width: 84px;
	height: 84px;
	flex-shrink: 0;
	border-radius: var(--radius-sm);
	background: var(--color-bg-alt);
	display: grid;
	place-items: center;
	font-weight: 800;
	font-size: 1.4rem;
	color: var(--color-primary);
	border: 1px solid var(--color-border);
}

.funding-note {
	margin-top: 40px;
	padding: 24px 28px;
	background: var(--color-bg-alt);
	border-left: 4px solid var(--color-accent);
	border-radius: var(--radius-sm);
	font-size: 0.96rem;
	color: var(--color-muted);
}

/* =================================================================
   Contact
   ================================================================= */
.contact {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	align-items: start;
}

.form-field {
	margin-bottom: 18px;
}

.form-field label {
	display: block;
	font-size: 0.9rem;
	font-weight: 600;
	margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
	width: 100%;
	padding: 12px 14px;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	font: inherit;
	font-size: 0.95rem;
	background: var(--color-bg);
}

.form-field input:focus,
.form-field textarea:focus {
	border-color: var(--color-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(138, 21, 56, 0.12);
}

/* =================================================================
   Footer
   ================================================================= */
.site-footer {
	background: var(--color-bg-dark);
	color: rgba(255, 255, 255, 0.78);
	padding: 56px 0 28px;
	font-size: 0.9rem;
}

.site-footer a {
	color: rgba(255, 255, 255, 0.9);
}

.site-footer a:hover {
	color: #fff;
}

.footer__grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr;
	gap: 40px;
	margin-bottom: 40px;
}

.site-footer h4 {
	color: #fff;
	font-size: 0.95rem;
	margin-bottom: 14px;
}

.footer__grid ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.footer__grid li {
	margin-bottom: 8px;
}

.footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.15);
	padding-top: 24px;
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	justify-content: space-between;
	font-size: 0.82rem;
	color: rgba(255, 255, 255, 0.6);
}

/* =================================================================
   Responsive
   ================================================================= */
@media (max-width: 980px) {
	.nav__toggle {
		display: block;
	}

	.nav__links {
		position: fixed;
		inset: var(--header-h) 0 auto 0;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		background: #fff;
		border-bottom: 1px solid var(--color-border);
		padding: 12px;
		box-shadow: var(--shadow);
		max-height: calc(100vh - var(--header-h));
		overflow-y: auto;
		transform: translateY(-12px);
		opacity: 0;
		pointer-events: none;
		transition:
			transform var(--transition),
			opacity var(--transition);
	}

	.nav__links.is-open {
		transform: translateY(0);
		opacity: 1;
		pointer-events: auto;
	}

	.nav__links a {
		padding: 14px 12px;
		font-size: 1rem;
		border-bottom: 1px solid var(--color-border);
	}

	.stats,
	.grid--4 {
		grid-template-columns: repeat(2, 1fr);
	}

	.grid--3 {
		grid-template-columns: repeat(2, 1fr);
	}

	.mono,
	.contact {
		grid-template-columns: 1fr;
	}

	.mono__cover {
		max-width: 280px;
	}

	.footer__grid {
		grid-template-columns: 1fr;
	}

	.accordion__body ul {
		columns: 1;
	}
}

@media (max-width: 560px) {
	.section {
		padding: 60px 0;
	}

	.stats,
	.grid--2,
	.grid--3,
	.grid--4 {
		grid-template-columns: 1fr;
	}

	.hero {
		padding: 64px 0 72px;
	}
}

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

	*,
	*::before,
	*::after {
		transition: none !important;
		animation: none !important;
	}
}