/* ==========================================================================
   DUX Lab — stylesheet
   Design inspiration: BFI Design Lab (bfi.org/programs/bfi-design-lab)
   Editorial, systems-thinking aesthetic — earthy palette, bold geometric
   type, generous whitespace, card-based grids.
   Written as plain, cross-browser-compatible CSS3 (no preprocessor,
   no build step).
   ========================================================================== */

@font-face {
	font-family: "Archivo";
	src: url("fonts/Archivo-Regular.woff2") format("woff2");
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: "Archivo";
	src: url("fonts/Archivo-Bold.woff2") format("woff2");
	font-weight: 700;
	font-style: normal;
	font-display: swap;
}

/* --------------------------------------------------------------------------
   1. Custom properties
   -------------------------------------------------------------------------- */
:root {
	/* color */
	--color-bg:          #f3f6f6;
	--color-bg-alt:      #dce3e5;
	--color-ink:         #212230;
	--color-ink-soft:    #8aa2a9;
	--color-primary:     #212230;  /* deep forest ink */
	--color-primary-alt: #345742;
	--color-accent:      #40f99b;   /* burnt terracotta */
	--color-accent-alt:  #d98e3f;   /* amber */
	--color-line:        #c4d0d4;
	--color-card:        #ffffff;

	/* type */
	--font-display: "Archivo", sans-serif;
	--font-body: "Archivo", sans-serif;
	--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

	/* scale */
	--space-1: 1rem;
	--space-2: 1.5rem;
	--space-3: 2rem;
	--space-4: 3rem;
	--space-5: 4.5rem;
	--space-6: 7rem;

	--radius: 2px;
	--max-width: 74rem;
	--header-height: 5rem;

	--ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset / base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol {
	margin: 0;
}

ul, ol {
	padding: 0;
	list-style: none;
}

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

a {
	color: inherit;
	text-decoration: none;
}

button, input, textarea, select {
	font: inherit;
	color: inherit;
}

body {
	background-color: var(--color-bg);
	color: var(--color-ink);
	font-family: var(--font-body);
	font-size: 1rem;
	line-height: 1.4;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

::-moz-selection { background: var(--color-accent-alt); color: var(--color-ink); }
::selection      { background: var(--color-accent-alt); color: var(--color-ink); }

/* --------------------------------------------------------------------------
   3. Type
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
	font-family: var(--font-display);
	font-weight: 700;
	color: var(--color-primary);
	line-height: 1.1;
	letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 2vw + 1rem, 2.75rem); }
h3 { font-size: clamp(1.25rem, 1vw + 1rem, 1.5rem); }

p { max-width: 60ch; }

.eyebrow {
	display: inline-block;
	font-family: var(--font-display);
	font-size: 1rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-ink);
	background-color: var(--color-accent);
	margin-bottom: var(--space-1);
}

.lede {
	font-size: clamp(1.1rem, 1vw + 0.9rem, 1.35rem);
	color: var(--color-ink-soft);
	max-width: 42ch;
}

/* --------------------------------------------------------------------------
   4. Layout helpers
   -------------------------------------------------------------------------- */
.wrap {
	width: 100%;
	max-width: var(--max-width);
	margin-left: auto;
	margin-right: auto;
	padding-left: var(--space-3);
	padding-right: var(--space-3);
}

.grid {
	display: -ms-grid;
	display: grid;
	grid-template-columns: repeat(12, 1fr);
	gap: var(--space-3);
}

section {
	padding-top: var(--space-6);
	padding-bottom: var(--space-6);
}

section + section {
	border-top: 1px solid var(--color-line);
}

/* --------------------------------------------------------------------------
   5. Header / nav
   -------------------------------------------------------------------------- */
.site-header {
	position: -webkit-sticky;
	position: sticky;
	top: 0;
	z-index: 20;
	background-color: rgba(220, 227, 229, 0.75);
	-webkit-backdrop-filter: saturate(140%) blur(6px);
	backdrop-filter: saturate(140%) blur(6px);
	-webkit-transform: translateY(0);
	-ms-transform: translateY(0);
	transform: translateY(0);
	-webkit-transition: -webkit-transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
	transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
	will-change: transform;
}

.site-header.is-hidden {
	-webkit-transform: translateY(-100%);
	-ms-transform: translateY(-100%);
	transform: translateY(-100%);
}

.site-header.is-scrolled {
	box-shadow: 0 8px 24px -18px rgba(28, 33, 29, 0.4);
}

.site-header-inner {
	width: 100%;
	height: var(--header-height);
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-align: center;
	-ms-flex-align: center;
	align-items: center;
	-webkit-box-pack: justify;
	-ms-flex-pack: justify;
	justify-content: space-between;
	padding-top: 0;
	padding-bottom: 0;
	padding-left: 0;
	padding-right: var(--space-3);
}

.brand {
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-align: center;
	-ms-flex-align: center;
	align-items: center;
	-webkit-align-self: stretch;
	-ms-flex-item-align: stretch;
	align-self: stretch;
	height: 100%;
	gap: var(--space-1);
}

.brand-logo {
	height: 100%;
	width: auto;
	display: block;
}

.brand-name {
	font-family: var(--font-display);
	font-weight: 900;
	font-size: 1.6rem;
	letter-spacing: 0.02em;
	color: var(--color-primary);
	white-space: nowrap;
}

.main-nav ul {
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	gap: var(--space-4);
}

.main-nav a {
	font-family: var(--font-display);
	font-size: 1.2rem;
	font-weight: 400;
	letter-spacing: 0.04em;
	padding-bottom: 0.2rem;
	border-bottom: 2px solid transparent;
	-webkit-transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
	-moz-transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
	transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.main-nav a:hover,
.main-nav a:focus {
	border-bottom-color: var(--color-ink);
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
	padding-top: var(--space-6);
	padding-bottom: var(--space-6);
	background-image: url("images/eur-star.png");
	background-position: bottom right;
	background-repeat: no-repeat;
}

.hero .grid {
	-webkit-box-align: end;
	-ms-flex-align: end;
	align-items: end;
}

.hero-copy { grid-column: 1 / span 8; }

.hero h1 { margin-bottom: var(--space-3); }

.hero p { font-size: 2rem; }

.hero-actions {
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	gap: var(--space-2);
	margin-top: var(--space-4);
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   7. Buttons / links
   -------------------------------------------------------------------------- */
.btn {
	display: -webkit-inline-box;
	display: -ms-inline-flexbox;
	display: inline-flex;
	-webkit-box-align: center;
	-ms-flex-align: center;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-display);
	font-size: 0.85rem;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	padding: 0.85rem 1.5rem;
	border: 1px solid var(--color-primary);
	border-radius: var(--radius);
	cursor: pointer;
	background: transparent;
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	-webkit-transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
	-moz-transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
	transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.btn-primary:hover, .btn-primary:focus {
	background: var(--color-accent);
	border-color: var(--color-accent);
	color: var(--color-ink);
}

.btn-inverse {
	background: var(--color-accent);
	color: var(--color-ink);
}

.btn-ghost {
	color: var(--color-primary);
}

.btn-ghost:hover, .btn-ghost:focus {
	background: var(--color-primary);
	color: var(--color-bg);
}

.text-link {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 0.85rem;
	letter-spacing: 0.02em;
	color: var(--color-ink);
	border-bottom: 1px solid currentColor;
}

.text-link:hover, .text-link:focus {
	color: var(--color-ink-soft);
}

/* --------------------------------------------------------------------------
   8. Callout
   -------------------------------------------------------------------------- */

.callout {
	background: var(--color-primary);
	color: var(--color-bg);
	border-top: none;
	padding-top: var(--space-4);
	padding-bottom: var(--space-4);
}
.callout .grid {
	-webkit-box-align: start;
	-ms-flex-align: start;
	align-items: start;
	place-items: center;
}

.callout-image { grid-column: 1 / span 2; }
.callout-content { grid-column: 3 / span 7; }
.callout-action { grid-column: 10 / span 3; }

.callout h3 {
	color: var(--color-bg);
	font-weight: 400;
	line-height: 1.4;
}

/* --------------------------------------------------------------------------
   8. Intro / approach section
   -------------------------------------------------------------------------- */
.approach .grid {
	-webkit-box-align: start;
	-ms-flex-align: start;
	align-items: start;
}

.approach-heading { grid-column: 1 / span 5; }
.approach-body { grid-column: 6 / span 7; }

.approach-body p + p { margin-top: var(--space-2); }

.principles {
	margin-top: var(--space-4);
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
	gap: var(--space-3);
}

.principles li {
	font-family: var(--font-display);
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.03em;
	text-transform: uppercase;
	padding: 0.4rem 0.9rem;
	border: 1px solid var(--color-line);
	border-radius: 999px;
	color: var(--color-ink-soft);
}

/* --------------------------------------------------------------------------
   9. Programs grid (cards)
   -------------------------------------------------------------------------- */
.programs-header {
	grid-column: 1 / span 12;
	margin-bottom: var(--space-4);
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-pack: justify;
	-ms-flex-pack: justify;
	justify-content: space-between;
	-webkit-box-align: end;
	-ms-flex-align: end;
	align-items: end;
	gap: var(--space-3);
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
}

.card {
	grid-column: span 4;
	background: var(--color-card);
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	padding: var(--space-3);
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-orient: vertical;
	-webkit-box-direction: normal;
	-ms-flex-direction: column;
	flex-direction: column;
	-webkit-transition: -webkit-transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
	transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.card:hover {
	-webkit-transform: translateY(-4px);
	-ms-transform: translateY(-4px);
	transform: translateY(-4px);
	box-shadow: 0 12px 28px -16px rgba(28, 33, 29, 0.35);
}

.card-index {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	color: var(--color-ink-soft);
	margin-bottom: var(--space-2);
}

.card h3 { margin-bottom: var(--space-1); }

.card p {
	color: var(--color-ink-soft);
	font-size: 0.95rem;
	max-width: none;
	-webkit-box-flex: 1;
	-ms-flex: 1;
	flex: 1;
}

.card .text-link {
	margin-top: var(--space-3);
	align-self: flex-start;
}

/* --------------------------------------------------------------------------
   10. Stats band
   -------------------------------------------------------------------------- */
.stats {
	background: var(--color-primary);
	color: var(--color-bg);
}

.stats .grid {
	text-align: left;
}

.stat {
	grid-column: span 3;
}

.stat .value {
	font-family: var(--font-display);
	font-size: clamp(2rem, 3vw, 3rem);
	font-weight: 700;
	color: var(--color-accent-alt);
	display: block;
}

.stat .label {
	font-family: var(--font-display);
	font-size: 0.8rem;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: rgba(246, 242, 233, 0.75);
}

/* --------------------------------------------------------------------------
   11. Call to action band
   -------------------------------------------------------------------------- */
.cta {
	text-align: center;
}

.cta .wrap {
	max-width: 64rem;
}

.cta h2 { margin-bottom: var(--space-2); }

.cta .lede {
	margin-left: auto;
	margin-right: auto;
}

.cta .hero-actions {
	-webkit-box-pack: center;
	-ms-flex-pack: center;
	justify-content: center;
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.site-footer {
	background: var(--color-bg-alt);
	border-top: 1px solid var(--color-line);
}

.footer-grid {
	-webkit-box-pack: justify;
	-ms-flex-pack: justify;
}

.footer-col { grid-column: span 3; }

.footer-col h4 {
	font-size: 0.8rem;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--color-ink-soft);
	margin-bottom: var(--space-2);
	margin-top: var(--space-3);
}

.footer-col ul li + li { margin-top: 0.5rem; }

.footer-col a {
	font-family: var(--font-display);
	font-size: 0.9rem;
}

.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
	grid-column: 1 / span 12;
	padding-top: var(--space-3);
	padding-bottom: var(--space-3);
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-pack: justify;
	-ms-flex-pack: justify;
	justify-content: space-between;
	font-family: var(--font-display);
	font-size: 0.8rem;
	color: var(--color-ink-soft);
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
	gap: var(--space-2);
}

/* --------------------------------------------------------------------------
   13. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
	.hero-copy, .hero-aside,
	.approach-heading, .approach-body,
	.card, .stat, .footer-col {
		grid-column: 1 / span 12;
	}

	.hero-aside {
		border-left: none;
		border-top: 1px solid var(--color-line);
		padding-left: 0;
		padding-top: var(--space-3);
	}

	.stat { grid-column: span 6; }
}

@media (max-width: 640px) {
	.main-nav ul {
		gap: var(--space-2);
	}

	.grid { gap: var(--space-2); }

	.stat { grid-column: span 12; }

	section { padding-top: var(--space-5); padding-bottom: var(--space-5); }
}

/* --------------------------------------------------------------------------
   14. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after {
		-webkit-transition-duration: 0.001ms !important;
		transition-duration: 0.001ms !important;
		-webkit-animation-duration: 0.001ms !important;
		animation-duration: 0.001ms !important;
		scroll-behavior: auto !important;
	}
}