/*
	Redesign option: a light, typographic academic layout with an automatic
	dark mode. Standalone (does not use main.css or the template JS).
	Icons come from the bundled fontawesome-all.min.css.
*/

/* Tokens */

:root {
	--bg: #fbfaf7;
	--surface: #ffffff;
	--text: #1f2330;
	--muted: #535a6c;
	--border: #e2dfd7;
	--accent: #4a3aa7;
	--accent-strong: #33277a;
	--accent-soft: #eeebfa;
	--hero-text: #ffffff;
	--hero-muted: rgba(255, 255, 255, 0.86);
	--focus: #4a3aa7;
	--shadow: 0 1px 2px rgba(20, 16, 40, 0.06), 0 4px 16px rgba(20, 16, 40, 0.05);

	--font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--font-heading: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;

	--content: 68rem;
	--prose: 44rem;
	--header-h: 4rem;

	color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #0f0d1e;
		--surface: #18152c;
		--text: #e9e7f2;
		--muted: #b4b0c8;
		--border: #2d2948;
		--accent: #b0a4ff;
		--accent-strong: #d3cbff;
		--accent-soft: #241f42;
		--focus: #67edf0;
		--shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.3);
	}
}

/* Base */

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

html {
	-webkit-text-size-adjust: 100%;
	scroll-padding-top: calc(var(--header-h) + 1rem);
}

@media (prefers-reduced-motion: no-preference) {
	html {
		scroll-behavior: smooth;
	}
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-body);
	font-size: 1.0625rem;
	line-height: 1.65;
	margin: 0;
}

h1, h2, h3 {
	font-family: var(--font-heading);
	font-weight: 600;
	line-height: 1.25;
	margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 5vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 1.9rem); }
h3 { font-size: 1.15rem; }

p {
	margin: 0 0 1em;
}

a {
	color: var(--accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

	a:hover {
		color: var(--accent-strong);
		text-decoration-thickness: 2px;
	}

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

img {
	height: auto;
	max-width: 100%;
}

b, strong {
	font-weight: 700;
}

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

.skip-link {
	background: var(--surface);
	color: var(--text);
	font-weight: 700;
	left: 1rem;
	padding: 0.5rem 1rem;
	position: absolute;
	top: -10rem;
	z-index: 100;
}

	.skip-link:focus {
		top: 1rem;
	}

.container {
	margin: 0 auto;
	max-width: var(--content);
	padding: 0 1.25rem;
}

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

/* Header */

.site-header {
	background: color-mix(in srgb, var(--bg) 92%, transparent);
	-webkit-backdrop-filter: blur(8px);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--border);
	position: sticky;
	top: 0;
	z-index: 50;
}

	.site-header .container {
		align-items: center;
		display: flex;
		flex-wrap: wrap;
		gap: 0.25rem 1.5rem;
		min-height: var(--header-h);
	}

	.site-title {
		color: var(--text);
		font-family: var(--font-heading);
		font-size: 1.2rem;
		font-weight: 600;
		text-decoration: none;
	}

		.site-title:hover {
			color: var(--accent);
		}

	.site-nav {
		margin-left: auto;
	}

		.site-nav ul {
			align-items: center;
			display: flex;
			gap: 0.25rem;
			list-style: none;
			margin: 0;
			padding: 0;
		}

		.site-nav a {
			border-radius: 999px;
			color: var(--muted);
			display: block;
			font-size: 0.95rem;
			padding: 0.35rem 0.75rem;
			text-decoration: none;
			white-space: nowrap;
		}

			.site-nav a:hover,
			.site-nav a[aria-current="page"] {
				background: var(--accent-soft);
				color: var(--text);
			}

			.site-nav a.nav-cv {
				border: 1px solid var(--accent);
				color: var(--accent);
				margin-left: 0.25rem;
			}

				.site-nav a.nav-cv:hover {
					background: var(--accent);
					color: var(--surface);
				}

	@media (max-width: 760px) {

		.site-header .container {
			padding-bottom: 0.4rem;
			padding-top: 0.6rem;
		}

		.site-nav {
			margin: 0 0 0 -0.6rem;
			width: 100%;
		}

			.site-nav ul {
				flex-wrap: wrap;
				gap: 0.1rem 0.1rem;
			}

			.site-nav a {
				font-size: 0.92rem;
				padding: 0.3rem 0.6rem;
			}

	}

/* Profile hero */

.hero {
	background-color: #0b0a1a;
	background-image:
		linear-gradient(90deg, rgba(8, 6, 22, 0.88) 0%, rgba(8, 6, 22, 0.6) 50%, rgba(8, 6, 22, 0.15) 100%),
		url("images/JWST_deepspace_earlyuniv.jpg");
	background-position: center, top right;
	background-size: cover;
	color: var(--hero-text);
	padding: 4rem 0 3.5rem;
	position: relative;
}

	.hero-grid {
		align-items: center;
		display: grid;
		gap: 2.5rem;
		grid-template-columns: auto 1fr;
	}

	.hero-photo {
		border: 3px solid rgba(255, 255, 255, 0.85);
		border-radius: 50%;
		display: block;
		height: 200px;
		object-fit: cover;
		width: 200px;
	}

	.hero h1 {
		color: var(--hero-text);
		margin-bottom: 0.2em;
	}

	.hero-role {
		color: var(--hero-muted);
		font-size: 1.15rem;
		margin-bottom: 0.25rem;
	}

	.hero-topics {
		color: var(--hero-muted);
		font-size: 0.95rem;
		letter-spacing: 0.02em;
		margin-bottom: 1.5rem;
	}

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

		.hero-links a {
			align-items: center;
			background: rgba(255, 255, 255, 0.1);
			border: 1px solid rgba(255, 255, 255, 0.35);
			border-radius: 999px;
			color: var(--hero-text);
			display: inline-flex;
			font-size: 0.9rem;
			gap: 0.45rem;
			padding: 0.35rem 0.9rem;
			text-decoration: none;
		}

			.hero-links a:hover {
				background: rgba(255, 255, 255, 0.22);
				color: var(--hero-text);
			}

			.hero-links a.primary {
				background: #ffffff;
				border-color: #ffffff;
				color: #1b1640;
				font-weight: 600;
			}

	.hero :focus-visible {
		outline-color: #67edf0;
	}

	.hero-credit {
		bottom: 0.5rem;
		font-size: 0.75rem;
		position: absolute;
		right: 0.75rem;
	}

		.hero-credit a {
			background: rgba(0, 0, 0, 0.6);
			border-radius: 3px;
			color: rgba(255, 255, 255, 0.9);
			padding: 0.1rem 0.4rem;
			text-decoration: none;
		}

	@media (max-width: 640px) {

		.hero {
			padding: 2.5rem 0 3rem;
			text-align: center;
		}

			.hero-grid {
				gap: 1.25rem;
				grid-template-columns: 1fr;
				justify-items: center;
			}

			.hero-photo {
				height: 140px;
				width: 140px;
			}

			.hero-links {
				justify-content: center;
			}

	}

/* Sections */

.section {
	padding: 3.5rem 0;
}

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

	.section-title {
		align-items: baseline;
		display: flex;
		gap: 1rem;
		margin-bottom: 1.5rem;
	}

		.section-title::after {
			background: var(--border);
			content: "";
			flex: 1;
			height: 1px;
		}

	.subhead {
		color: var(--muted);
		font-family: var(--font-body);
		font-size: 0.8rem;
		font-weight: 700;
		letter-spacing: 0.12em;
		margin: 2rem 0 1rem;
		text-transform: uppercase;
	}

	.lead-note {
		color: var(--muted);
	}

/* Research cards */

.cards {
	display: grid;
	gap: 1.5rem;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}

.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 10px;
	box-shadow: var(--shadow);
	display: flex;
	flex-direction: column;
	overflow: hidden;
}

	.card-media {
		aspect-ratio: 16 / 9;
		margin: 0;
		position: relative;
	}

		.card-media img {
			display: block;
			height: 100%;
			object-fit: cover;
			width: 100%;
		}

	.card-body {
		display: flex;
		flex: 1;
		flex-direction: column;
		padding: 1.25rem 1.5rem 1.5rem;
	}

		.card-body h3 {
			font-size: 1.3rem;
		}

		.card-body p {
			color: var(--muted);
			flex: 1;
		}

	.more-link {
		align-items: center;
		display: inline-flex;
		font-weight: 600;
		gap: 0.4rem;
		text-decoration: none;
	}

		.more-link:hover {
			text-decoration: underline;
		}

.credit {
	background: rgba(0, 0, 0, 0.72);
	border-radius: 3px;
	bottom: 0.4rem;
	color: #ffffff;
	font-size: 0.72rem;
	line-height: 1.4;
	padding: 0.1rem 0.4rem;
	position: absolute;
	right: 0.4rem;
}

/* Publications */

.pub-list {
	counter-reset: pub;
	list-style: none;
	margin: 0;
	padding: 0;
}

	.pub-list > li {
		border-left: 3px solid var(--accent-soft);
		margin: 0 0 1.25rem;
		padding: 0.15rem 0 0.15rem 1.1rem;
	}

		.pub-list > li:hover {
			border-left-color: var(--accent);
		}

	.pub-list p {
		margin: 0;
	}

	.pub-title {
		font-family: var(--font-heading);
		font-size: 1.1rem;
		font-style: italic;
		line-height: 1.4;
		margin-bottom: 0.2rem !important;
	}

		.pub-title a {
			color: var(--text);
			text-decoration: none;
		}

			.pub-title a:hover {
				color: var(--accent);
				text-decoration: underline;
			}

	.pub-authors {
		color: var(--muted);
	}

		.pub-authors b {
			color: var(--text);
		}

	.pub-venue {
		color: var(--muted);
		font-size: 0.95rem;
	}

.pub-links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	list-style: none;
	margin: 0 0 2rem;
	padding: 0;
}

	.pub-links a {
		border: 1px solid var(--accent);
		border-radius: 999px;
		color: var(--accent);
		display: inline-block;
		font-size: 0.95rem;
		font-weight: 600;
		padding: 0.35rem 1rem;
		text-decoration: none;
	}

		.pub-links a:hover {
			background: var(--accent);
			color: var(--surface);
		}

.button {
	align-items: center;
	background: var(--accent);
	border-radius: 999px;
	color: var(--surface);
	display: inline-flex;
	font-weight: 600;
	gap: 0.5rem;
	padding: 0.5rem 1.1rem;
	text-decoration: none;
}

	.button:hover {
		background: var(--accent-strong);
		color: var(--surface);
	}

/* Talks */

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

	.talk-list > li {
		border-left: 2px solid var(--border);
		padding: 0 0 1.5rem 1.5rem;
		position: relative;
	}

		.talk-list > li::before {
			background: var(--bg);
			border: 2px solid var(--accent);
			border-radius: 50%;
			content: "";
			height: 0.85rem;
			left: calc(-0.425rem - 1px);
			position: absolute;
			top: 0.35rem;
			width: 0.85rem;
		}

		.talk-list > li:last-child {
			border-left-color: transparent;
		}

	.talk-list h3 {
		margin-bottom: 0.3rem;
	}

	.talk-list p {
		color: var(--muted);
		margin: 0;
	}

.file-type {
	color: var(--muted);
	font-size: 0.85em;
	white-space: nowrap;
}

/* Contact */

.contact-grid {
	display: grid;
	gap: 1.25rem;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
	list-style: none;
	margin: 0;
	padding: 0;
}

	.contact-grid > li {
		background: var(--surface);
		border: 1px solid var(--border);
		border-radius: 10px;
		padding: 1.25rem 1.5rem;
	}

	.contact-grid h3 {
		align-items: center;
		display: flex;
		font-size: 1rem;
		gap: 0.5rem;
	}

		.contact-grid h3 .fas {
			color: var(--accent);
		}

	address {
		font-style: normal;
	}

.social-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

	.social-list a {
		align-items: center;
		border: 1px solid var(--border);
		border-radius: 50%;
		color: var(--accent);
		display: inline-flex;
		font-size: 1.15rem;
		height: 2.6rem;
		justify-content: center;
		text-decoration: none;
		width: 2.6rem;
	}

		.social-list a:hover {
			background: var(--accent);
			border-color: var(--accent);
			color: var(--surface);
		}

/* Footer */

.site-footer {
	border-top: 1px solid var(--border);
	color: var(--muted);
	font-size: 0.9rem;
	padding: 2rem 0 2.5rem;
}

	.site-footer .container {
		display: flex;
		flex-wrap: wrap;
		gap: 0.5rem 1.5rem;
		justify-content: space-between;
	}

	.site-footer p {
		margin: 0;
	}

/* Research article pages */

.article {
	padding: 2.5rem 0 3.5rem;
}

	.back-link {
		align-items: center;
		display: inline-flex;
		font-size: 0.95rem;
		gap: 0.4rem;
		margin-bottom: 1.25rem;
		text-decoration: none;
	}

	.article h1 {
		border-bottom: 1px solid var(--border);
		margin-bottom: 1.5rem;
		padding-bottom: 0.5rem;
	}

	.article h2 {
		margin-top: 2.25rem;
	}

	.figure {
		margin: 0 auto 2rem;
		text-align: center;
	}

		.figure img {
			border-radius: 8px;
		}

		.figure figcaption {
			color: var(--muted);
			font-size: 0.9rem;
			line-height: 1.5;
			margin-top: 0.5rem;
		}

		.figure--wide {
			max-width: 46rem;
		}

		.figure--narrow {
			max-width: 30rem;
		}

	/* Plot with a long explanatory caption below it. */
	.figure--plot img {
		background: #ffffff;
		width: 100%;
	}

		.figure--plot figcaption {
			text-align: left;
		}