:root {
  --bg: #fafaf9;
  --fg: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --card: #ffffff;
  --accent: #2563eb;
  --radius: 12px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --fg: #e7e5e4;
    --muted: #a8a29e;
    --line: #292524;
    --card: #1c1917;
    --accent: #60a5fa;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 72px 20px 48px;
}

.hero {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  flex-shrink: 0;
}

h1 { margin: 0; font-size: 1.9rem; line-height: 1.2; letter-spacing: -0.02em; }
.role { margin: 4px 0 0; color: var(--muted); }

h2 {
  margin: 44px 0 14px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.about p { margin: 0; font-size: 1.08rem; }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg);
  text-decoration: none;
  font-size: 0.95rem;
  transition: border-color .15s, color .15s;
}
.links a:hover { border-color: var(--accent); color: var(--accent); }
.links svg { width: 18px; height: 18px; }

.tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags li {
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  font-size: 0.88rem;
}

.projects {
  display: grid;
  gap: 12px;
}

.card {
  display: block;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}

.card h3 { margin: 0 0 4px; font-size: 1rem; }
.card p { margin: 0 0 8px; color: var(--muted); font-size: 0.95rem; }
.card .meta { font-size: 0.8rem; color: var(--accent); }

a.card:hover { border-color: var(--accent); transform: translateY(-1px); }

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}
.timeline li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.timeline li:last-child { border-bottom: 0; }
.timeline .when { color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; }

.plain { margin: 0; }

@media (max-width: 480px) {
  .timeline li { grid-template-columns: 1fr; gap: 0; }
}

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}
footer p { margin: 0; }

@media (max-width: 480px) {
  .wrap { padding-top: 40px; }
  .hero { flex-direction: column; align-items: flex-start; }
}

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