:root {
	color-scheme: light;
	--accent: #2698ba;
	--accent-dark: #1b6f8a;
	--text: #222222;
	--muted: #666666;
	--border: #e5e5e5;
	--surface: #ffffff;
	--page: #fdfdfd;
	--header-bg: rgba(255, 255, 255, 0.96);
	--max-width: 900px;
}

:root[data-theme="dark"] {
	color-scheme: dark;
	--accent: #70d6ff;
	--accent-dark: #a8e8ff;
	--text: #eeeeee;
	--muted: #b7b7b7;
	--border: #30343a;
	--surface: #1b1f24;
	--page: #111418;
	--header-bg: rgba(17, 20, 24, 0.96);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--page);
	color: var(--text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	font-size: 17px;
	line-height: 1.65;
	transition: background 0.2s ease, color 0.2s ease;
}

a {
	color: var(--accent);
	text-decoration: none;
	transition: color 0.18s ease, border-color 0.18s ease;
}

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

.site-header {
	position: sticky;
	top: 0;
	z-index: 10;
	background: var(--header-bg);
	border-bottom: 1px solid var(--border);
	backdrop-filter: blur(8px);
}

.navbar {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0.75rem 1.25rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
}

.brand {
	color: var(--text);
	font-family: Georgia, "Times New Roman", serif;
	font-size: 1.35rem;
	font-weight: 500;
	white-space: nowrap;
}

.nav-actions {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-left: auto;
}

.nav-links {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	gap: 1rem;
	flex-wrap: wrap;
	font-size: 0.95rem;
}

.nav-links a {
	color: var(--muted);
}

.nav-links a:hover,
.nav-links a.active {
	color: var(--accent);
	text-decoration: none;
}

.theme-toggle {
	width: 2.15rem;
	height: 2.15rem;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 1px solid var(--border);
	border-radius: 50%;
	background: var(--surface);
	color: var(--muted);
	cursor: pointer;
	font-size: 1rem;
	line-height: 1;
	transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.theme-toggle:hover {
	border-color: var(--accent);
	color: var(--accent);
}

.theme-toggle .moon-icon {
	display: inline;
}

.theme-toggle .sun-icon {
	display: none;
}

:root[data-theme="dark"] .theme-toggle .moon-icon {
	display: none;
}

:root[data-theme="dark"] .theme-toggle .sun-icon {
	display: inline;
}

main {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 2.75rem 1.25rem 3rem;
}

.intro {
	display: grid;
	grid-template-columns: 1fr 215px;
	gap: 2.5rem;
	align-items: start;
	margin-bottom: 2.5rem;
}

.intro h1,
.page-title {
	margin: 0 0 0.25rem;
	font-family: Georgia, "Times New Roman", serif;
	font-size: 2.45rem;
	font-weight: 500;
	line-height: 1.2;
}

.page-title {
	margin-bottom: 1.75rem;
}

.role {
	margin: 0 0 1.4rem;
	color: var(--muted);
	font-size: 1.05rem;
}

.intro p:not(.role) {
	text-align: justify;
	text-justify: inter-word;
	hyphens: auto;
}

.portrait {
	width: 215px;
	aspect-ratio: 1;
	border-radius: 50%;
	object-fit: cover;
	border: 1px solid var(--border);
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.portrait-panel {
	display: flex;
	flex-direction: column;
	align-items: center;
	width: fit-content;
}

.social-links {
	display: flex;
	gap: 0.85rem;
	margin-top: 1.1rem;
	justify-content: center;
	width: 100%;
}

.social-links a {
	width: 2rem;
	height: 2rem;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 1px solid var(--border);
	border-radius: 50%;
	background: var(--surface);
}

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

.social-links img {
	width: 1.15rem;
	height: 1.15rem;
	display: block;
}

:root[data-theme="dark"] .social-links img {
	filter: invert(1) grayscale(1) brightness(1.35);
}

.inline-contact {
	margin-top: 1.25rem;
	color: var(--muted);
	font-size: 0.98rem;
}

.inline-contact p {
	margin-bottom: 0.35rem;
}

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

.news-section {
	padding-top: 0;
	border-top: 0;
}

.pseudo-news {
	margin-top: 0;
	padding: 1rem 1.15rem;
	border: 1px solid var(--border);
	border-left: 3px solid var(--accent);
	border-radius: 6px;
	background: var(--surface);
}

.pseudo-news h2 {
	margin-bottom: 0.75rem;
}

.pseudo-line {
	display: grid;
	grid-template-columns: 2.2rem 1fr;
	gap: 0.75rem;
	align-items: baseline;
	font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
	font-size: 0.92rem;
	line-height: 1.65;
}

.pseudo-line.indent code {
	padding-left: 1.25rem;
}

.pseudo-index {
	color: var(--muted);
	font-size: 0.78rem;
	user-select: none;
}

.pseudo-line code {
	color: var(--text);
	font-family: inherit;
	white-space: normal;
}

.pseudo-news p {
	margin: 0;
	color: var(--muted);
	font-size: 0.98rem;
	line-height: 1.6;
	text-align: justify;
	text-justify: inter-word;
	hyphens: auto;
}

.news-marker {
	display: inline-block;
	margin-right: 0.4rem;
	color: var(--accent);
}

section {
	padding: 1.7rem 0;
	border-top: 1px solid var(--border);
	scroll-margin-top: 4.5rem;
}

section:first-of-type {
	border-top: 0;
	padding-top: 0;
}

h2 {
	margin: 0 0 1rem;
	font-family: Georgia, "Times New Roman", serif;
	font-size: 1.7rem;
	font-weight: 500;
	line-height: 1.25;
}

h3 {
	margin: 0;
	font-size: 1.05rem;
	font-weight: 500;
	line-height: 1.5;
}

p {
	margin: 0 0 1rem;
}

ul {
	margin: 0.8rem 0 0;
	padding-left: 1.35rem;
}

li {
	margin-bottom: 0.85rem;
}

.research-interests li {
	margin-bottom: 0.25rem;
}

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

.entry {
	margin: 0 0 1.05rem;
	padding: 0;
}

.entry p {
	margin: 0.15rem 0 0;
	color: var(--muted);
	font-size: 0.98rem;
	line-height: 1.55;
}

.service-list {
	margin-top: 0.35rem;
	color: var(--muted);
	font-size: 0.98rem;
	line-height: 1.55;
}

.service-list li {
	margin-bottom: 0.25rem;
}

.note {
	color: var(--muted);
	font-size: 0.98rem;
}

.footer {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 1.5rem 1.25rem 2.25rem;
	border-top: 1px solid var(--border);
	color: var(--muted);
	font-size: 0.9rem;
	text-align: center;
}

@media (max-width: 760px) {
	body {
		font-size: 16px;
	}

	.navbar {
		align-items: flex-start;
		flex-direction: column;
		gap: 0.55rem;
	}

	.nav-actions {
		width: 100%;
		align-items: flex-start;
		justify-content: space-between;
		margin-left: 0;
	}

	.nav-links {
		justify-content: flex-start;
		gap: 0.7rem 0.95rem;
	}

	main {
		padding-top: 1.75rem;
	}

	.intro {
		display: flex;
		flex-direction: column-reverse;
		gap: 1.35rem;
	}

	.intro h1,
	.page-title {
		font-size: 2.1rem;
	}

	.portrait {
		width: 155px;
	}
}