:root {
	--bg: #f0f0f0;
	--paper: #ffffff;
	--ink: #111111;
	--muted: #555555;
	--line: #d8d8d8;
	--brand: #14427a;
	--max: 1180px;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
}

body {
	font-family: "Inter", system-ui, sans-serif;
	color: var(--ink);
	background: var(--bg);
	line-height: 1.55;
}

a {
	color: inherit;
}

.container {
	max-width: var(--max);
	margin: 0 auto;
	padding: 0 1.4rem;
}

.topband {
	border-bottom: 1px solid var(--line);
	background: var(--paper);
	position: sticky;
	top: 0;
	z-index: 10;
}

.topband-inner {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
	min-height: 60px;
}

.mark {
	display: flex;
	align-items: baseline;
	gap: 0.7rem;
}

.mark .lab {
	font-family: "Inter", system-ui, sans-serif;
	font-size: 1.05rem;
	font-weight: 800;
	letter-spacing: -0.02em;
}

.mark .uni {
	font-size: 0.74rem;
	text-transform: uppercase;
	letter-spacing: 0.09em;
	color: var(--muted);
}

nav {
	display: flex;
	gap: 1.1rem;
	flex-wrap: wrap;
	justify-content: flex-end;
}

nav a {
	text-decoration: none;
	font-size: 0.9rem;
	color: var(--muted);
	transition: color 0.15s ease;
}

nav a:hover,
nav a:focus-visible {
	color: var(--brand);
}

.menu-toggle {
	display: none;
	border: none;
	background: transparent;
	padding: 0.5rem;
	cursor: pointer;
	z-index: 20;
}

.menu-icon {
	width: 22px;
	height: 16px;
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.menu-icon span {
	display: block;
	width: 100%;
	height: 2px;
	background-color: var(--ink);
	transition: transform 0.3s ease, opacity 0.3s ease;
	border-radius: 2px;
}

.topband.menu-open .menu-icon span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.topband.menu-open .menu-icon span:nth-child(2) {
	opacity: 0;
}

.topband.menu-open .menu-icon span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.hero {
	padding: 3.5rem 0 2rem;
}

.hero-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.2rem;
	align-items: stretch;
}

.hero-main {
	border: 1px solid var(--line);
	border-radius: 3px;
	background: 
		linear-gradient(90deg, #ffffff 650px, rgba(255, 255, 255, 0) 850px),
		url('superquads.jpg') no-repeat calc(100% + 150px) center / contain;
	background-color: var(--paper);
	padding: 2.2rem;
}

.kicker {
	margin: 0 0 0.6rem;
	font-size: 0.72rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--brand);
	font-weight: 600;
}

h1,
h2,
h3 {
	font-family: "Inter", system-ui, sans-serif;
	line-height: 1.1;
	margin-top: 0;
}

h1 {
	margin: 0 0 1rem;
	font-size: clamp(1.9rem, 4vw, 3.2rem);
	max-width: 25ch;
	letter-spacing: -0.03em;
	font-weight: 800;
}

.lead {
	max-width: 60ch;
	color: var(--muted);
	margin-bottom: 1.6rem;
	font-size: 1rem;
}

.cta-row {
	display: flex;
	gap: 0.7rem;
	flex-wrap: wrap;
}

.btn {
	display: inline-block;
	text-decoration: none;
	font-weight: 600;
	font-size: 0.88rem;
	padding: 0.55rem 0.85rem;
	border-radius: 3px;
	border: 1px solid var(--ink);
	transition: background-color 0.15s ease, color 0.15s ease;
}

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

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

.btn.secondary {
	background: transparent;
	color: var(--ink);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
	background: var(--ink);
	color: #fff;
}

main {
	padding-bottom: 4rem;
}

.section {
	margin-top: 1.8rem;
	padding: 1.4rem;
	border: 1px solid var(--line);
	border-radius: 3px;
	background: var(--paper);
}

.section h2 {
	font-size: clamp(1.2rem, 2.5vw, 1.75rem);
	margin-bottom: 1rem;
	padding-bottom: 0.6rem;
	border-bottom: 1px solid var(--line);
}

.grid-2 {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem;
}

.person,
.pub,
.contact-card,
.talk {
	background: var(--bg);
	border: 1px solid var(--line);
	border-radius: 2px;
}

.person {
	padding: 1.1rem;
	display: grid;
	grid-template-columns: 72px 1fr;
	gap: 0.9rem;
	align-items: center;
}

.person-photo {
	width: 72px;
	height: 72px;
	object-fit: cover;
	border-radius: 50%;
	border: 1px solid var(--line);
	margin: 0;
	display: block;
	background: #e6e6e6;
}

.person-meta {
	min-width: 0;
}

.person .role {
	font-size: 0.7rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--brand);
	font-weight: 600;
	margin: 0 0 0.3rem;
}

.person h3 {
	margin: 0 0 0.5rem;
	font-size: 1.2rem;
	display: flex;
	align-items: center;
	gap: 0.35rem;
}

.person h3 a.ext-link {
	display: inline-flex;
	align-items: center;
	color: var(--muted);
	opacity: 0.5;
	transition: opacity 0.15s ease, color 0.15s ease;
	flex-shrink: 0;
}

.person h3 a.ext-link:hover {
	opacity: 1;
	color: var(--brand);
}

.person p {
	margin: 0;
	color: var(--muted);
	font-size: 0.93rem;
}

.research-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 0.75rem;
}

.research-tile {
	padding: 1rem;
	border-radius: 2px;
	border: 1px solid var(--line);
	background: var(--bg);
}

.research-tile h3 {
	font-size: 0.98rem;
	margin-bottom: 0.4rem;
}

.research-tile p {
	margin: 0;
	color: var(--muted);
	font-size: 0.88rem;
}

.talks-list {
	display: grid;
	gap: 0.75rem;
}

.talk {
	padding: 0.85rem 0.95rem;
	display: grid;
	grid-template-columns: 130px 1fr;
	gap: 1rem;
	align-items: center;
}

.talk time {
	font-size: 0.82rem;
	font-weight: 500;
	color: var(--muted);
}

.talk h3 {
	font-size: 0.98rem;
	margin: 0 0 0.2rem;
	font-weight: 600;
}

.talk p {
	margin: 0;
	color: var(--muted);
	font-size: 0.88rem;
}

.pub-grid {
	display: grid;
	gap: 0.75rem;
}

.pub {
	padding: 0.75rem 0.9rem;
	display: grid;
	grid-template-columns: 180px 1fr;
	gap: 0.9rem;
	align-items: center;
}

.pub-teaser-link {
	display: block;
	line-height: 0;
}

.pub-teaser {
	width: 100%;
	height: 102px;
	object-fit: cover;
	border: 1px solid var(--line);
	border-radius: 2px;
}

.pub-content strong {
	display: block;
}

.pub p {
	margin: 0.15rem 0 0;
	color: var(--muted);
	font-size: 0.88rem;
}

.pub p b {
	display: inline-block;
	padding: 0.12rem 0.42rem;
	margin-right: 0.24rem;
	border: 1px solid rgba(20, 66, 122, 0.28);
	border-radius: 999px;
	background: rgba(20, 66, 122, 0.08);
	color: var(--brand);
	font-weight: 700;
	font-size: 0.78rem;
	letter-spacing: 0.02em;
	vertical-align: baseline;
}

.contact-wrap {
	display: grid;
	grid-template-columns: 1.1fr 0.9fr;
	gap: 1rem;
}

.contact-card {
	padding: 1.1rem;
}

.contact-card p {
	margin: 0;
	color: var(--muted);
	font-size: 0.93rem;
}

.contact-card strong {
	color: var(--ink);
}

.news-list {
	margin: 0.5rem 0 0;
	padding-left: 1.1rem;
}

.news-list li {
	margin-bottom: 0.4rem;
	color: var(--muted);
	font-size: 0.92rem;
}

footer {
	margin-top: 2rem;
	padding: 1.2rem 0 2.8rem;
	font-size: 0.86rem;
	color: var(--muted);
	border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
	.hero-grid,
	.contact-wrap {
		grid-template-columns: 1fr;
	}

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

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

@media (max-width: 950px) {
	.container {
		padding: 0 0.95rem;
	}

	.topband-inner {
		padding: 0;
		min-height: 56px;
	}

	.topband-head {
		width: 100%;
		display: flex;
		justify-content: space-between;
		align-items: center;
		min-height: 56px;
		padding: 0 0.95rem;
	}

	.mark {
		flex-wrap: wrap;
		gap: 0.2rem 0.6rem;
		align-items: center;
	}

	.mark .lab {
		font-size: 0.95rem;
	}

	.mark .uni {
		font-size: 0.62rem;
		letter-spacing: 0.05em;
	}

	nav {
		position: absolute;
		top: 56px;
		left: 0;
		width: 100%;
		background: var(--paper);
		flex-direction: column;
		gap: 0;
		padding: 0.5rem 0 1.5rem;
		border-bottom: 1px solid var(--line);
		box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
		opacity: 0;
		visibility: hidden;
		transform: translateY(-10px);
		transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
	}

	.topband.menu-open nav {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}

	.menu-toggle {
		display: flex;
	}

	nav a {
		padding: 0.8rem 1.4rem;
		font-size: 1rem;
		border-bottom: 1px solid #f9f9f9;
		color: var(--ink);
		font-weight: 500;
	}

	nav a:last-child {
		border-bottom: none;
	}

	.research-grid,
	.grid-2 {
		grid-template-columns: 1fr;
	}

	.hero {
		padding-top: 2rem;
	}

	.hero-main,
	.section,
	.contact-card,
	.person,
	.research-tile {
		padding: 1rem;
		background-image: none;
	}

	.person-photo {
		width: 64px;
		height: 64px;
	}

	.person {
		grid-template-columns: 64px 1fr;
		gap: 0.75rem;
	}

	.pub {
		grid-template-columns: 1fr;
		align-items: start;
	}

	.pub-teaser {
		height: auto;
		aspect-ratio: 16 / 9;
	}

	h1 {
		font-size: clamp(1.55rem, 9vw, 2.1rem);
	}

	.lead {
		font-size: 0.95rem;
	}

	.talk {
		grid-template-columns: 104px 1fr;
		gap: 0.65rem;
		align-items: start;
	}

	.talk time {
		padding-top: 0.2rem;
	}

	.person {
		grid-template-columns: 1fr;
		align-items: start;
	}

	.person-photo {
		margin-bottom: 0.15rem;
	}
}