/* ==========================================================================
   Hashara Kumarasinghe — personal site
   "Ledger": restrained academic editorial. Hand-written, no build step.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Fonts — self-hosted, latin subset, variable weight axis only
   -------------------------------------------------------------------------- */

@font-face {
	font-family: "Source Serif 4";
	font-style: normal;
	font-weight: 400 600;
	font-display: swap;
	src: url("../fonts/source-serif-4-latin.woff2") format("woff2");
}

@font-face {
	font-family: "Inter";
	font-style: normal;
	font-weight: 400 600;
	font-display: swap;
	src: url("../fonts/inter-latin.woff2") format("woff2");
}

@font-face {
	font-family: "JetBrains Mono";
	font-style: normal;
	font-weight: 400 500;
	font-display: swap;
	src: url("../fonts/jetbrains-mono-latin.woff2") format("woff2");
}

/* Metric-matched fallbacks so a font swap does not reflow the page. Measured
   cold-cache shift before this: -196px document height, -110px to #research. */
@font-face {
	font-family: "Serif Fallback";
	src: local("Georgia"), local("Times New Roman"), local("Times");
	size-adjust: 95%;
	ascent-override: 90%;
	descent-override: 25%;
	line-gap-override: 0%;
}

@font-face {
	font-family: "Sans Fallback";
	src: local("Helvetica Neue"), local("Arial"), local("Liberation Sans");
	size-adjust: 88%;
	ascent-override: 90%;
	descent-override: 22%;
	line-gap-override: 0%;
}

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
	color-scheme: light dark;

	/* Light (default) */
	--bg: #fbfaf8;
	--surface: #f3f1ec;
	--text: #16150f;
	--muted: #615c52;
	--rule: #dedacf;
	--accent: #1d4e89;
	--accent-soft: #e6eef8;

	/* --rule is a decorative hairline at 1.34:1 and must never carry meaning.
	   Anything that delineates a CONTROL uses --rule-strong, which clears the
	   3:1 required by WCAG 1.4.11 against both --bg and --surface. */
	--rule-strong: #8a8578;

	/* Opaque light plate behind raster logos, which have white mattes baked in.
	   Deliberately the same value in both themes — it is a lightbox, not a
	   surface, so it must NOT follow the theme. */
	--plate: #f3f1ec;

	/* Modal scrim. Dark mode needs a heavier one to separate an already-dark
	   dialog from an already-dark page. */
	--scrim: rgb(0 0 0 / 0.55);

	/* Plane above the page, for modals. Contrast ratio compresses badly at the
	   dark end, so dark mode lifts this well clear of --surface by eye rather
	   than chasing a number. */
	--surface-raised: #f3f1ec;

	--font-serif: "Source Serif 4", "Serif Fallback", Charter, Georgia, serif;
	--font-sans: Inter, "Sans Fallback", system-ui, -apple-system, sans-serif;
	--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

	/* Fluid type — 1.25 scale, anchored at 19px body */
	--fs-hero: clamp(2.5rem, 1.6rem + 3.6vw, 3.75rem);
	--fs-h2: clamp(1.5rem, 1.28rem + 0.9vw, 1.875rem);
	--fs-h3: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
	--fs-body: clamp(1.0625rem, 1.02rem + 0.18vw, 1.1875rem);
	--fs-sm: 0.9375rem;
	--fs-xs: 0.8125rem;

	--space-section: clamp(3rem, 7vw, 5.5rem);
	--shell: 68rem;
	--measure: 40rem;
	--radius: 4px;
	--rule-w: 1px;
	--ease: cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #12110f;
		--surface: #1b1a17;
		--text: #edeae2;
		--muted: #9e988c;
		--rule: #2e2c27;
		--accent: #8fb8e8;
		--accent-soft: #18222e;
		--rule-strong: #726c62;
		--scrim: rgb(0 0 0 / 0.72);
		--surface-raised: #24221d;
	}
}

/* Manual override wins over the media query in both directions. */
:root[data-theme="light"] {
	color-scheme: light;
	--bg: #fbfaf8;
	--surface: #f3f1ec;
	--text: #16150f;
	--muted: #615c52;
	--rule: #dedacf;
	--accent: #1d4e89;
	--accent-soft: #e6eef8;
	--rule-strong: #8a8578;
	--scrim: rgb(0 0 0 / 0.55);
	--surface-raised: #f3f1ec;
}

:root[data-theme="dark"] {
	color-scheme: dark;
	--bg: #12110f;
	--surface: #1b1a17;
	--text: #edeae2;
	--muted: #9e988c;
	--rule: #2e2c27;
	--accent: #8fb8e8;
	--accent-soft: #18222e;
	--rule-strong: #726c62;
	--scrim: rgb(0 0 0 / 0.72);
	--surface-raised: #24221d;
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */

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

* {
	margin: 0;
}

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
	scroll-padding-top: 5.5rem;
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-serif);
	font-size: var(--fs-body);
	line-height: 1.65;
	font-synthesis-weight: none;
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
	overflow-wrap: break-word;
}

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

img {
	height: auto;
}

a {
	color: inherit;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
	text-decoration-color: color-mix(in srgb, var(--accent) 70%, transparent);
	transition: color 0.15s var(--ease), text-decoration-color 0.15s var(--ease);
}

a:hover {
	color: var(--accent);
	text-decoration-color: var(--accent);
}

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

::selection {
	background: var(--accent-soft);
	color: var(--text);
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
	font-family: var(--font-serif);
	font-weight: 600;
	line-height: 1.2;
	letter-spacing: -0.011em;
	text-wrap: balance;
}

h2 {
	font-size: var(--fs-h2);
}

h3 {
	font-size: var(--fs-h3);
	line-height: 1.3;
}

h4 {
	font-size: 1.0625rem;
}

p {
	text-wrap: pretty;
}

.prose {
	max-width: var(--measure);
}

.prose p + p {
	margin-top: 1em;
}

/* Small sans-serif metadata line — dates, institutions, roles */
.meta {
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	line-height: 1.55;
	color: var(--muted);
}

/* Mono is reserved for years, DOIs, ranks and action links */
.mono {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	font-variant-ligatures: none;
	letter-spacing: -0.01em;
}

.lede {
	font-size: clamp(1.1875rem, 1.06rem + 0.5vw, 1.4375rem);
	line-height: 1.5;
	color: var(--muted);
	max-width: 34rem;
	text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */

.shell {
	max-width: var(--shell);
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.section {
	padding-block: var(--space-section);
	border-top: var(--rule-w) solid var(--rule);
}

/* Heading with a hairline running to the right edge */
.section-head {
	display: flex;
	align-items: baseline;
	gap: 1.25rem;
	margin-bottom: 2.25rem;
}

.section-head::after {
	content: "";
	flex: 1;
	height: var(--rule-w);
	background: var(--rule);
}

/* Introductory prose sitting between a section heading and its list */
.section-lede {
	margin-bottom: 3rem;
}

/* Trailing note under a publication group, e.g. a link to the source record */
.group-note {
	margin-top: 1.25rem;
}

/* --------------------------------------------------------------------------
   5. Skip link & header
   -------------------------------------------------------------------------- */

.skip {
	position: absolute;
	left: 50%;
	top: 0;
	translate: -50% -150%;
	z-index: 100;
	background: var(--text);
	color: var(--bg);
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	padding: 0.6rem 1.1rem;
	border-radius: 0 0 var(--radius) var(--radius);
	text-decoration: none;
	transition: translate 0.2s var(--ease);
}

.skip:focus-visible {
	translate: -50% 0;
	color: var(--bg);
}

.masthead {
	position: sticky;
	top: 0;
	z-index: 50;
	/* Opaque: at 92% the page text smeared through the wordmark at ~1.18:1,
	   and there is no backdrop-filter to separate the planes. */
	background: var(--bg);
	border-bottom: var(--rule-w) solid transparent;
	transition: border-color 0.2s var(--ease);
}

.masthead[data-stuck="true"] {
	border-bottom-color: var(--rule);
}

.masthead .shell {
	display: flex;
	align-items: center;
	gap: 1.5rem;
	min-height: 3.5rem;
}

.wordmark {
	font-family: var(--font-serif);
	font-size: 1.0625rem;
	font-weight: 600;
	letter-spacing: -0.01em;
	text-decoration: none;
	white-space: nowrap;
	flex-shrink: 0;
}

.nav {
	flex: 1;
	overflow-x: auto;
	overscroll-behavior-x: contain;
	scrollbar-width: none;
	-webkit-mask-image: linear-gradient(to right, #000 calc(100% - 1.5rem), transparent);
	mask-image: linear-gradient(to right, #000 calc(100% - 1.5rem), transparent);
}

.nav::-webkit-scrollbar {
	display: none;
}

.nav ul {
	display: flex;
	gap: 0.25rem;
	list-style: none;
	/* Clears the trailing fade so the last item is never dimmed at scroll end */
	padding: 0 1.5rem 0 0;
	margin: 0;
}

/* Below the desktop breakpoint the wordmark + toggle leave the nav almost no
   room (0px at 320, 69px at 390), so the nav takes its own full-bleed row. */
@media (max-width: 47.999rem) {
	.masthead .shell {
		flex-wrap: wrap;
		gap: 0 1rem;
		min-height: 0;
	}

	.wordmark {
		flex: 1;
		min-width: 0;
		overflow: hidden;
		text-overflow: ellipsis;
		padding-block: 0.75rem;
	}

	.nav {
		order: 3;
		flex-basis: 100%;
		margin-inline: calc(-1 * clamp(1.25rem, 5vw, 3rem));
		padding-inline: clamp(1.25rem, 5vw, 3rem);
		border-top: var(--rule-w) solid var(--rule);
	}

	.nav a {
		padding-block: 0.7rem;
	}
}

.nav a {
	display: block;
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	color: var(--muted);
	text-decoration: none;
	white-space: nowrap;
	padding: 1rem 0.7rem;
	border-bottom: 2px solid transparent;
	transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.nav a:hover {
	color: var(--text);
}

.nav a:focus-visible {
	outline-offset: -3px;
}

.nav a[aria-current="true"] {
	color: var(--text);
	border-bottom-color: var(--accent);
}

/* Icon button (theme toggle) — 44px touch target */
.icon-btn {
	display: grid;
	place-items: center;
	width: 2.75rem;
	height: 2.75rem;
	flex-shrink: 0;
	background: none;
	border: 0;
	border-radius: 50%;
	color: var(--muted);
	cursor: pointer;
	transition: color 0.15s var(--ease), background 0.15s var(--ease);
}

.icon-btn:hover {
	color: var(--text);
	background: var(--surface);
}

.icon-btn svg {
	width: 1.125rem;
	height: 1.125rem;
}

/* The button shows the theme it will switch TO, not the current one. */
.icon-btn .icon-sun {
	display: none;
}

@media (prefers-color-scheme: dark) {
	.icon-btn .icon-sun {
		display: block;
	}
	.icon-btn .icon-moon {
		display: none;
	}
}

:root[data-theme="light"] .icon-btn .icon-sun {
	display: none;
}
:root[data-theme="light"] .icon-btn .icon-moon {
	display: block;
}
:root[data-theme="dark"] .icon-btn .icon-sun {
	display: block;
}
:root[data-theme="dark"] .icon-btn .icon-moon {
	display: none;
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */

.hero {
	padding-block: clamp(3rem, 9vw, 6rem) var(--space-section);
}

.hero-grid {
	display: grid;
	gap: clamp(1.75rem, 4vw, 3.5rem);
	grid-template-columns: 1fr;
	align-items: start;
}

@media (min-width: 48rem) {
	.hero-grid {
		grid-template-columns: minmax(0, 1fr) auto;
	}

	.portrait {
		order: 0;
	}
}

.hero h1 {
	font-size: var(--fs-hero);
	letter-spacing: -0.025em;
	line-height: 1.05;
}

.hero .role {
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	color: var(--muted);
	margin-top: 0.9rem;
	letter-spacing: 0.01em;
}

.hero .role strong {
	color: var(--text);
	font-weight: 500;
}

.hero .lede {
	margin-top: 1.5rem;
}

/* Narrower than --measure, which is sized for 19px body text: at 15px the
   same width would run to ~79 characters. */
.hero .prose {
	margin-top: 1.5rem;
	max-width: 34rem;
	color: var(--muted);
	font-size: var(--fs-sm);
	line-height: 1.7;
}

/* Last in DOM order, so when the hero stacks it lands after the link row —
   648px below the name at 767px. Pull it up unless the two-column grid is on. */
.portrait {
	order: -1;
	width: clamp(7rem, 18vw, 9.5rem);
	aspect-ratio: 1;
	border-radius: 50%;
	object-fit: cover;
	border: var(--rule-w) solid var(--rule);
	justify-self: start;
}

/* Hero link row */
.channels {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.4rem 1.25rem;
	margin-top: 2rem;
	list-style: none;
	padding: 0;
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
}

.channels a {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	padding-block: 0.35rem;
	text-decoration: none;
	color: var(--muted);
}

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

.channels svg {
	width: 1rem;
	height: 1rem;
	flex-shrink: 0;
}

.channels .primary {
	color: var(--text);
	border-bottom: 1px solid var(--accent);
}

/* --------------------------------------------------------------------------
   7. Publications
   -------------------------------------------------------------------------- */

.pub-group + .pub-group {
	margin-top: 2.75rem;
}

/* Declared after the adjacent-sibling rule above, which it must beat. */
.pub-group.spaced,
.pub-group + .pub-group.spaced {
	margin-top: 3rem;
}

.pub-group > h3 {
	font-family: var(--font-sans);
	font-size: var(--fs-xs);
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--muted);
	padding-bottom: 0.6rem;
	border-bottom: var(--rule-w) solid var(--rule);
	margin-bottom: 1.5rem;
}

/* Scholar metrics line. Carries an explicit "as of" date in the markup —
   these numbers only move upward, so a stale figure understates rather than
   misleads, but the date keeps it honest. */
.metrics {
	color: var(--muted);
	margin-bottom: 2.5rem;
	padding-bottom: 1.5rem;
	border-bottom: var(--rule-w) solid var(--rule);
}

.pubs {
	list-style: none;
	padding: 0;
	display: grid;
	gap: 1.75rem;
}

/* Optional publication thumbnail. Add an <img class="thumb"> as the first
   child after .year and the row becomes three columns on its own. */
.pub:has(.thumb) {
	grid-template-columns: 3.5rem 8rem minmax(0, 1fr);
}

.pub:has(.thumb) > *:not(.year):not(.thumb) {
	grid-column: 3;
}

.pub .thumb {
	grid-column: 2;
	grid-row: 1 / span 4;
	align-self: start;
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	border: var(--rule-w) solid var(--rule);
	border-radius: var(--radius);
	background: var(--surface);
}

.pub {
	display: grid;
	gap: 0.3rem;
	grid-template-columns: 3.5rem minmax(0, 1fr);
	align-items: baseline;
}

.pub .year {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--muted);
	grid-row: 1;
	padding-top: 0.3em;
}

.pub > *:not(.year) {
	grid-column: 2;
}

.pub .title {
	font-size: 1.0625rem;
	font-weight: 600;
	line-height: 1.4;
}

.pub .title a {
	text-decoration: none;
}

.pub .authors {
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	color: var(--muted);
}

.pub .authors .self {
	color: var(--text);
	font-weight: 600;
}

.pub .venue {
	font-size: var(--fs-sm);
	font-style: italic;
	color: var(--muted);
}

.links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-top: 0.5rem;
	list-style: none;
	padding: 0;
}

.links a {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--muted);
	text-decoration: none;
	padding: 0.2rem 0.55rem;
	border: var(--rule-w) solid var(--rule-strong);
	border-radius: var(--radius);
	transition: color 0.15s var(--ease), border-color 0.15s var(--ease),
		background 0.15s var(--ease);
}

.links a:hover {
	color: var(--accent);
	border-color: var(--accent);
	background: var(--accent-soft);
}

@media (max-width: 34rem) {
	.pub,
	.pub:has(.thumb) {
		grid-template-columns: minmax(0, 1fr);
	}
	.pub .year {
		grid-row: auto;
		padding-top: 0;
	}
	.pub > *:not(.year),
	.pub:has(.thumb) > *:not(.year):not(.thumb) {
		grid-column: 1;
	}
	.pub .thumb {
		grid-column: 1;
		grid-row: auto;
		max-width: 12rem;
	}
}

/* --------------------------------------------------------------------------
   8. Entry lists — experience, education, achievements, activities
   -------------------------------------------------------------------------- */

.entries {
	list-style: none;
	padding: 0;
	display: grid;
	gap: 2.5rem;
}

.entry {
	position: relative;
	display: grid;
	gap: 0.35rem 1.75rem;
	grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 44rem) {
	.entry {
		grid-template-columns: 9rem minmax(0, 1fr);
	}
	.entry > *:not(.when):not(.logo) {
		grid-column: 2;
	}
	.entry .when {
		grid-column: 1;
		grid-row: 1;
		text-align: right;
		padding-top: 0.25em;
	}
	/* The date owns row 1 of the left rail, so the logo takes row 2 — placing
	   both on row 1 would stack them in the same cell. */
	/* Taken out of flow: as a grid item its 44px height became the minimum
	   height of a row otherwise sized by one line of .where text, pushing the
	   rest of the entry down 19.25px versus its logo-less siblings.
	   right:calc(100% - 9rem) pins it to the right edge of the date rail. */
	.entry .logo {
		position: absolute;
		top: 2.1rem;
		right: calc(100% - 9rem);
		margin-bottom: 0;
	}
}

.entry .when {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--muted);
	white-space: nowrap;
}

/* Items inside a labelled group (Certifications, Grants, …) are h4 so they
   nest under the group's h3 — they still read as entry titles. */
.entry > h3,
.entry > h4 {
	font-size: var(--fs-h3);
	font-family: var(--font-serif);
	font-weight: 600;
	line-height: 1.3;
}

.entry .where {
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	color: var(--muted);
}

/* Entry body text is capped independently of the grid column, which would
   otherwise run to ~99 characters at the widest breakpoint. */
.entry .where,
.entry .sub,
.entry > p,
.entry ul:not(.tags):not(.links):not(.ranks) {
	max-width: 36rem;
}

/* Descriptive paragraphs in an entry, as distinct from the .where meta line */
.entry > p:not(.where) {
	margin-top: 0.75rem;
	font-size: var(--fs-sm);
	line-height: 1.7;
	color: var(--muted);
}

.entry > p:not(.where) + .tags {
	margin-top: 1rem;
}

/* The group heading already draws the top edge of the list */
.pub-group > .projects .project:first-child {
	border-top: 0;
}

.entry ul:not(.tags):not(.links):not(.ranks) {
	margin-top: 0.75rem;
	padding-left: 1.05rem;
	font-size: var(--fs-sm);
	line-height: 1.7;
	color: var(--muted);
	display: grid;
	gap: 0.35rem;
}

.entry ul:not(.tags):not(.links):not(.ranks) li::marker {
	color: var(--muted);
}

.entry .sub {
	margin-top: 1.25rem;
	padding-left: 1.1rem;
	border-left: var(--rule-w) solid var(--rule);
	display: grid;
	gap: 1.25rem;
}

.entry .sub h4 {
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	font-weight: 600;
}

/* Education entries carry an institution logo */
.entry .logo {
	width: auto;
	height: 2.75rem;
	max-width: 6rem;
	object-fit: contain;
	border-radius: var(--radius);
	background: var(--plate);
	padding: 0.3rem;
}

/* Stacked layout: the logo leads the entry instead of sitting in a rail. */
@media (max-width: 43.999rem) {
	.entry .logo {
		justify-self: start;
		margin-bottom: 0.4rem;
	}
}

/* Rank chips (MoraXtreme / IEEEXtreme) */
.ranks {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-top: 0.9rem;
	list-style: none;
	padding: 0;
}

.ranks li {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--muted);
	border: var(--rule-w) solid var(--rule-strong);
	border-radius: var(--radius);
	padding: 0.3rem 0.6rem;
}

.ranks strong {
	color: var(--text);
	font-weight: 600;
}

/* --------------------------------------------------------------------------
   9. Skills & tags
   -------------------------------------------------------------------------- */

.skill-groups {
	display: grid;
	gap: 2rem clamp(1.5rem, 4vw, 3rem);
	grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
}

.skill-groups h3 {
	font-family: var(--font-sans);
	font-size: var(--fs-xs);
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--muted);
	margin-bottom: 0.85rem;
}

.tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	list-style: none;
	padding: 0;
	margin: 0;
}

.tags li {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	line-height: 1.4;
	color: var(--muted);
	background: var(--surface);
	border: var(--rule-w) solid transparent;
	border-radius: var(--radius);
	padding: 0.25rem 0.55rem;
}

/* --------------------------------------------------------------------------
   10. Projects
   -------------------------------------------------------------------------- */

.projects {
	list-style: none;
	padding: 0;
	display: grid;
	gap: 0;
}

.project {
	display: grid;
	grid-template-columns: 3.5rem minmax(0, 1fr) auto;
	gap: 0.3rem 1.25rem;
	align-items: center;
	padding-block: 1.35rem;
	border-bottom: var(--rule-w) solid var(--rule);
}

.project:first-child {
	border-top: var(--rule-w) solid var(--rule);
}

.project img {
	width: 3.5rem;
	height: 3.5rem;
	object-fit: contain;
	border-radius: var(--radius);
	background: var(--plate);
	padding: 0.35rem;
	grid-row: 1;
}

.project .body {
	grid-column: 2;
	min-width: 0;
}

.project h4 {
	font-size: 1.0625rem;
	font-weight: 600;
	line-height: 1.35;
}

.project .meta {
	margin-top: 0.15rem;
}

.project .tags {
	margin-top: 0.5rem;
}

.project .open {
	grid-column: 3;
	grid-row: 1;
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--muted);
	background: none;
	border: var(--rule-w) solid var(--rule-strong);
	border-radius: var(--radius);
	padding: 0.45rem 0.75rem;
	min-height: 2.25rem;
	cursor: pointer;
	white-space: nowrap;
	transition: color 0.15s var(--ease), border-color 0.15s var(--ease),
		background 0.15s var(--ease);
}

.project .open:hover {
	color: var(--accent);
	border-color: var(--accent);
	background: var(--accent-soft);
}

@media (max-width: 34rem) {
	.project {
		grid-template-columns: 2.75rem minmax(0, 1fr);
	}
	.project img {
		width: 2.75rem;
		height: 2.75rem;
		grid-row: 1;
		align-self: start;
	}
	.project .open {
		grid-column: 2;
		grid-row: auto;
		justify-self: start;
		margin-top: 0.75rem;
	}
}

/* --------------------------------------------------------------------------
   11. Dialogs (project detail)
   -------------------------------------------------------------------------- */

dialog.detail {
	width: min(42rem, calc(100vw - 2rem));
	max-height: min(85vh, 52rem);
	padding: 0;
	border: var(--rule-w) solid var(--rule);
	border-radius: 8px;
	/* A raised plane, not --bg: reusing the page plane left the dark dialog at
	   1.06:1 against its own backdrop. */
	background: var(--surface-raised);
	color: var(--text);
	overflow: hidden;
	/* Belt and braces: some engines still inherit the UA centering quirk */
	margin: auto;
}

/* The dialog is a container, not a control — the autofocused close button
   carries the visible focus ring instead. */
dialog.detail:focus,
dialog.detail:focus-visible {
	outline: none;
}

:root:has(dialog.detail[open]) {
	overflow: hidden;
}

dialog.detail::backdrop {
	background: var(--scrim);
	backdrop-filter: none;
}

dialog.detail .dialog-inner {
	max-height: 100%;
	overflow-y: auto;
	overscroll-behavior: contain;
	padding: clamp(1.5rem, 4vw, 2.5rem);
}

.dialog-head {
	/* Sticky so the close button cannot scroll out of reach: at 740x360 it
	   ended up 531px above the dialog top. */
	position: sticky;
	top: 0;
	z-index: 1;
	background: var(--surface-raised);
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 0.75rem 1rem;
	align-items: start;
	padding-bottom: 1.25rem;
	margin-bottom: 1.5rem;
	border-bottom: var(--rule-w) solid var(--rule);
}

.dialog-head h2 {
	font-size: clamp(1.375rem, 1.2rem + 0.7vw, 1.625rem);
	line-height: 1.25;
}

.dialog-head .meta {
	margin-top: 0.4rem;
}

.dialog-head .tags {
	margin-top: 0.75rem;
	grid-column: 1 / -1;
}

.dialog-close {
	width: 2.75rem;
	height: 2.75rem;
	margin: -0.5rem -0.5rem 0 0;
	display: grid;
	place-items: center;
	background: none;
	border: 0;
	border-radius: 50%;
	color: var(--muted);
	cursor: pointer;
	transition: color 0.15s var(--ease), background 0.15s var(--ease);
}

.dialog-close:hover {
	color: var(--text);
	background: var(--surface);
}

.dialog-close svg {
	width: 1.125rem;
	height: 1.125rem;
}

dialog .prose {
	font-size: var(--fs-sm);
	line-height: 1.7;
	color: var(--muted);
}

dialog .prose > * + * {
	margin-top: 1rem;
}

dialog .prose h3 {
	font-family: var(--font-sans);
	font-size: var(--fs-xs);
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--muted);
	margin-top: 1.75rem;
}

dialog .prose ul:not(.tags):not(.links) {
	padding-left: 1.05rem;
	display: grid;
	gap: 0.4rem;
}

dialog .prose ul:not(.tags):not(.links) li::marker {
	color: var(--muted);
}

.embed {
	aspect-ratio: 16 / 9;
	width: 100%;
	border-radius: var(--radius);
	overflow: hidden;
	background: var(--surface);
	border: var(--rule-w) solid var(--rule);
}

.embed iframe {
	width: 100%;
	height: 100%;
	border: 0;
}

dialog .shot {
	width: 100%;
	border-radius: var(--radius);
	border: var(--rule-w) solid var(--rule);
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */

.site-footer {
	border-top: var(--rule-w) solid var(--rule);
	padding-block: 2.5rem 3.5rem;
	font-family: var(--font-sans);
	font-size: var(--fs-sm);
	color: var(--muted);
}

.site-footer .shell {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem 2rem;
	justify-content: space-between;
	align-items: center;
}

.site-footer .links a {
	border: 0;
	padding: 0.3rem 0;
}

.site-footer .links a:hover {
	background: none;
}

/* --------------------------------------------------------------------------
   13. Motion & print
   -------------------------------------------------------------------------- */

/* No scroll-triggered reveals: content is never hidden behind a script. */

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

@media print {
	/* The dark palette is localStorage-persisted and would otherwise survive
	   into print: dialog headings measured 2.92:1 on paper. */
	:root,
	:root[data-theme="dark"],
	:root[data-theme="light"] {
		color-scheme: light;
		--bg: #fff;
		--surface: #fff;
		--text: #000;
		--muted: #333;
		--rule: #bbb;
		--rule-strong: #888;
		--accent: #000;
		--accent-soft: #fff;
		--plate: #fff;
		--surface-raised: #fff;
	}

	.masthead,
	.skip,
	.icon-btn,
	.project .open,
	.dialog-close,
	.embed {
		display: none !important;
	}

	body {
		font-size: 11pt;
	}

	.section {
		padding-block: 1.25rem;
	}

	/* Keep individual records together; whole sections are taller than a page,
	   so avoiding breaks inside them cannot be honoured. */
	.entry,
	.pub,
	.project,
	.pub-group > h3 {
		break-inside: avoid;
	}

	.pub-group > h3,
	.section-head {
		break-after: avoid;
	}

	/* Project details live in <dialog>, which the UA hides when closed. Render
	   them as an appendix rather than dropping the content from the printout. */
	dialog.detail {
		display: block;
		position: static;
		width: auto;
		max-height: none;
		border: 0;
		border-top: var(--rule-w) solid var(--rule);
	}

	/* Keep the title with at least the opening of its description, but let the
	   appendix flow — reserving a page per project wastes eight sheets. */
	.dialog-head {
		break-after: avoid;
	}

	dialog.detail .dialog-inner {
		max-height: none;
		overflow: visible;
		padding: 0.75rem 0;
	}

	dialog.detail::backdrop {
		display: none;
	}
}