:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --ink: #1a1d24;
  --ink-soft: #4a5160;
  --ink-mute: #7a8190;
  --rule: #e5e3dc;
  --accent: #c8553d;
  --accent-soft: #f4ddd6;
  --max: 880px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
nav.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
nav.top .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 14px;
}
nav.top a.brand { font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
nav.top a.brand:hover { color: var(--accent); text-decoration: none; }
nav.top ul { list-style: none; display: flex; gap: 22px; margin: 0; padding: 0; }
nav.top ul a { color: var(--ink-soft); }
nav.top ul a:hover { color: var(--accent); text-decoration: none; }

/* Layout */
main { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section { padding: 56px 0; border-bottom: 1px solid var(--rule); }
section:last-of-type { border-bottom: none; }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.2; }
h2 {
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-mute);
  margin: 0 0 24px;
}
h3 { font-size: 18px; margin: 0 0 4px; font-weight: 600; }
p { margin: 0 0 14px; color: var(--ink-soft); }
strong { color: var(--ink); font-weight: 600; }

/* Hero */
.hero { padding: 72px 0 56px; border-bottom: 1px solid var(--rule); }
.hero-grid {
  display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: center;
}
.hero img {
  width: 200px; height: 200px; border-radius: 8px;
  object-fit: cover; object-position: center;
}
.hero h1 { font-size: 34px; margin: 0 0 6px; font-weight: 700; }
.hero .role { font-size: 17px; color: var(--ink-soft); margin: 0 0 18px; }
.hero .role .at { color: var(--accent); font-weight: 500; }
.hero .bio { font-size: 16px; color: var(--ink-soft); margin: 0 0 22px; max-width: 60ch; }
.hero .links { display: flex; flex-wrap: wrap; gap: 8px; }
.hero .links a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border: 1px solid var(--rule);
  border-radius: 999px; font-size: 13px; color: var(--ink);
  background: var(--surface); transition: all 0.15s;
}
.hero .links a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* Work */
.work-lede { font-size: 16px; color: var(--ink); margin-bottom: 18px; }
.work-bullets { list-style: none; padding: 0; margin: 0; }
.work-bullets li {
  padding: 14px 0 14px 18px;
  border-left: 2px solid var(--accent-soft);
  margin-bottom: 6px;
}
.work-bullets li strong { display: block; margin-bottom: 2px; }
.work-bullets li span { color: var(--ink-soft); font-size: 15px; }
.tech-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.tech-chips span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--ink-soft);
  padding: 3px 9px; background: var(--surface);
  border: 1px solid var(--rule); border-radius: 4px;
}

/* Recognition line */
.recognition {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--rule);
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}
.recognition strong { color: var(--ink); margin-right: 4px; }

/* Projects */
.projects { display: grid; gap: 18px; }
.project {
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  transition: border-color 0.15s, transform 0.15s;
}
.project:hover { border-color: var(--accent); }
.project-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 12px; margin-bottom: 10px; flex-wrap: wrap;
}
.project h3 { margin: 0; font-size: 17px; }
.project-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.project-tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--accent);
  padding: 2px 8px; background: var(--accent-soft);
  border-radius: 3px;
}
.project p { margin: 0; font-size: 14.5px; line-height: 1.6; }

/* Research cards */
.papers { display: grid; gap: 22px; }
.paper {
  display: grid; grid-template-columns: 110px 1fr; gap: 18px; align-items: start;
}
.paper img {
  width: 110px; height: 80px; border-radius: 4px;
  object-fit: cover; background: #eee;
}
.paper h3 { font-size: 15px; font-weight: 600; }
.paper .meta { font-size: 13px; color: var(--ink-mute); margin-bottom: 4px; }
.paper p { font-size: 14px; margin: 4px 0 0; }
.pub-link { display: inline-block; margin-top: 18px; font-size: 14px; }

/* Writing list */
.posts { list-style: none; padding: 0; margin: 0; }
.posts li {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.posts li:last-child { border-bottom: none; }
.posts .post-date {
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  color: var(--ink-mute); display: block; margin-bottom: 2px;
}
.posts .post-title { font-weight: 600; color: var(--ink); }
.posts .post-title:hover { color: var(--accent); text-decoration: none; }
.posts .post-hook { font-size: 14px; color: var(--ink-soft); margin-top: 2px; }
.see-all { display: inline-block; margin-top: 18px; font-size: 14px; }

/* Outdoors */
.outdoor-strip { margin-top: 16px; }
.outdoor-strip img {
  width: 100%; max-width: 380px;
  aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: 6px;
}
.outdoors p { max-width: 60ch; }

/* Single post / writing index pages */
article.post {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 0;
}
.post-header { margin-bottom: 32px; }
.post-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; color: var(--ink-mute);
  margin: 0 0 8px;
}
article.post h1 {
  font-size: 30px; margin: 0;
  letter-spacing: -0.02em;
}
.post-body { font-size: 16px; line-height: 1.75; color: var(--ink); }
.post-body p { color: var(--ink); margin: 0 0 18px; }
.post-body h2 {
  font-size: 20px; text-transform: none; letter-spacing: -0.01em;
  color: var(--ink); margin: 32px 0 12px; font-weight: 600;
}
.post-body h3 {
  font-size: 17px; margin: 24px 0 8px; font-weight: 600;
}
.post-body ul, .post-body ol { padding-left: 22px; }
.post-body li { margin-bottom: 6px; }
.post-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13.5px;
  background: var(--surface);
  border: 1px solid var(--rule);
  padding: 1px 5px;
  border-radius: 3px;
}
.post-body pre {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 14px 18px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.6;
}
.post-body pre code {
  background: none; border: none; padding: 0;
}
.post-back {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
}

.writing-page { padding: 56px 0; }
.writing-page h1 {
  font-size: 28px; margin: 0 0 24px;
  letter-spacing: -0.02em;
}

/* Footer */
footer {
  border-top: 1px solid var(--rule);
  padding: 32px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-mute);
}
footer a { color: var(--ink-mute); }

/* Mobile */
@media (max-width: 640px) {
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero img { width: 140px; height: 140px; }
  .hero h1 { font-size: 28px; }
  nav.top ul { gap: 14px; font-size: 13px; }
  nav.top ul li:nth-child(n+5) { display: none; }
  .paper { grid-template-columns: 80px 1fr; gap: 12px; }
  .paper img { width: 80px; height: 60px; }
  .outdoor-strip { grid-template-columns: repeat(2, 1fr); }
  article.post { padding: 40px 24px; }
  article.post h1 { font-size: 24px; }
}