:root {
	--bg: #f7f8fa;
	--surface: #ffffff;
	--text: #141a22;
	--muted: #5b6472;
	--border: #e2e5ea;
	--accent: #1f3a5f;
	--accent-soft: #e9eef5;
	--on-accent: #ffffff;
	--radius: 10px;
	--font: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	--mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
	color-scheme: light;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #0f1318;
		--surface: #161b22;
		--text: #e6e8eb;
		--muted: #9aa3ae;
		--border: #262d36;
		--accent: #8fb3d9;
		--accent-soft: #1a2533;
		--on-accent: #0f1318;
		color-scheme: dark;
	}
}

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

html {
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font: 17px/1.65 var(--font);
	border-top: 4px solid var(--accent);
}

a {
	color: inherit;
}

h1,
h2,
h3 {
	line-height: 1.25;
	margin: 0;
}

.wrap {
	max-width: 760px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Hero */
.hero {
	display: flex;
	gap: 28px;
	align-items: flex-start;
	padding-top: 72px;
	padding-bottom: 40px;
}

.avatar-ring {
	flex-shrink: 0;
	padding: 3px;
	border-radius: 50%;
	border: 2px solid var(--accent);
}

.avatar {
	display: block;
	width: 108px;
	height: 108px;
	border-radius: 50%;
	object-fit: cover;
}

.hero h1 {
	font-size: 2.2rem;
	letter-spacing: -0.02em;
}

.role {
	margin: 4px 0 14px;
	color: var(--accent);
	font-family: var(--mono);
	font-size: 0.9rem;
}

.summary {
	margin: 0 0 18px;
	color: var(--muted);
}

.links {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.links a {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	padding: 6px 14px;
	border: 1px solid var(--border);
	border-radius: 6px;
	background: var(--surface);
	font-size: 0.9rem;
	text-decoration: none;
	transition: border-color 0.15s, color 0.15s;
}

.links svg {
	width: 15px;
	height: 15px;
	flex-shrink: 0;
	fill: currentColor;
}

.links svg.stroke {
	fill: none;
	stroke: currentColor;
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

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

.links a.cv {
	background: var(--accent);
	border-color: var(--accent);
	color: var(--on-accent);
}

.links a.cv:hover {
	color: var(--on-accent);
	opacity: 0.9;
}

/* Sections */
section {
	padding: 40px 0;
	border-top: 1px solid var(--border);
}

section h2 {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 20px;
	font-size: 0.8rem;
	font-family: var(--mono);
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--muted);
}

section h2::before {
	content: '';
	width: 16px;
	height: 2px;
	background: var(--accent);
}

section p {
	margin: 0 0 14px;
}

.section-head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 12px;
}

/* Writing */
.filters {
	display: flex;
	gap: 4px;
	margin-bottom: 20px;
}

.filters button {
	font: inherit;
	font-size: 0.82rem;
	padding: 4px 12px;
	border-radius: 6px;
	border: 1px solid var(--border);
	background: transparent;
	color: var(--muted);
	cursor: pointer;
}

.filters button[aria-pressed='true'] {
	background: var(--accent);
	border-color: var(--accent);
	color: var(--on-accent);
}

.posts {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 12px;
}

.posts a {
	display: block;
	padding: 18px 20px;
	background: var(--surface);
	border: 1px solid var(--border);
	border-left: 3px solid var(--border);
	border-radius: var(--radius);
	text-decoration: none;
	transition: border-color 0.15s;
}

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

.posts h3 {
	font-size: 1.08rem;
	margin: 6px 0;
}

.posts a:hover h3 {
	color: var(--accent);
}

.posts p {
	margin: 0;
	color: var(--muted);
	font-size: 0.95rem;
}

.meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	font-size: 0.8rem;
	color: var(--muted);
}

.tag {
	padding: 1px 8px;
	border-radius: 4px;
	background: var(--accent-soft);
	color: var(--accent);
	font-family: var(--mono);
	font-size: 0.72rem;
}

.tag.lang {
	background: transparent;
	border: 1px solid var(--border);
	color: var(--muted);
}

/* Skills */
.skills {
	margin: 0;
	display: grid;
	gap: 16px;
}

.skills > div {
	display: grid;
	grid-template-columns: 140px 1fr;
	gap: 16px;
}

.skills dt {
	font-weight: 600;
	font-size: 0.95rem;
	padding-top: 3px;
}

.skills dd {
	margin: 0;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.chip {
	padding: 3px 10px;
	border: 1px solid var(--border);
	border-radius: 6px;
	font-size: 0.85rem;
	background: var(--surface);
}

/* Footer */
footer {
	padding-top: 32px;
	padding-bottom: 48px;
	border-top: 1px solid var(--border);
	font-size: 0.9rem;
}

footer p {
	margin: 0 0 4px;
}

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

@media (max-width: 600px) {
	.hero {
		flex-direction: column;
		gap: 20px;
		padding-top: 48px;
	}

	.avatar {
		width: 84px;
		height: 84px;
	}

	.skills > div {
		grid-template-columns: 1fr;
		gap: 4px;
	}
}

@media (prefers-reduced-motion: reduce) {
	* {
		transition: none !important;
	}
}