:root {
  --paper: oklch(98% 0.012 80);
  --ink: oklch(21% 0.02 60);
  --ink-soft: oklch(42% 0.02 60);
  --line: oklch(84% 0.014 75);
  --accent: oklch(56% 0.15 250);

  --max-hero: 700px;
  --max-content: 1072px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main { flex: 1 0 auto; }

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }

.serif { font-family: 'Newsreader', Georgia, serif; }
.mono { font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }
.caps { text-transform: uppercase; letter-spacing: 0.11em; }

img { max-width: 100%; }

/* ---------- layout shell ---------- */

.wrap { max-width: var(--max-content); margin: 0 auto; padding: 0 64px; }

/* Every content section below sets its own max-width; this centers all of
   them in the viewport instead of letting them hug the left edge. */
.hero, .focus, .selected-work, .notes-preview, .notes-index,
.projects, .publications, .contact, .page-header, .post, .back-link {
  margin-left: auto;
  margin-right: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 36px 64px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 16px;
}
.site-nav .wordmark { font-size: 19px; font-style: italic; }
.site-nav .nav-links { display: flex; gap: 36px; font-size: 12px; flex-wrap: wrap; }
.site-nav .nav-links a { color: var(--ink-soft); }
.site-nav .nav-links a.active {
  color: var(--ink);
  font-weight: 600;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 3px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.site-nav.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-nav.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-nav.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-footer {
  padding: 36px 64px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: var(--ink-soft);
}
.site-footer .footer-links { display: flex; gap: 28px; }

/* ---------- hero ---------- */

.hero { padding: 96px 64px 72px; max-width: var(--max-content); }
.eyebrow { font-size: 12px; color: var(--accent); margin-bottom: 22px; }
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.08;
  font-weight: 500;
  margin: 0 0 28px;
}
.hero .intro {
  font-style: italic;
  font-size: 22px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: var(--max-hero);
  margin: 0 0 40px;
}
.hero-actions { display: flex; gap: 40px; align-items: center; flex-wrap: wrap; }
.hero-actions .cta { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; }
.hero-actions .cta-secondary { font-size: 13px; color: var(--ink-soft); }

/* ---------- focus tags ---------- */

.focus { padding: 0 64px 72px; max-width: var(--max-content); }
.focus-row {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: flex;
  gap: 56px;
  align-items: baseline;
  flex-wrap: wrap;
}
.focus-row .kicker { width: 120px; flex-shrink: 0; }
.tags { display: flex; gap: 22px; flex-wrap: wrap; }
.tags .tag { font-size: 13px; color: var(--ink-soft); }
.tags .tag .accent { color: var(--accent); }

/* ---------- section headers ---------- */

.kicker { font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.11em; font-size: 12px; color: var(--ink-soft); }

.section-title {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-soft);
  margin: 0 0 8px;
}
.rule { border-top: 1px solid var(--ink); margin-bottom: 4px; }

.page-header { padding: 80px 64px 0; max-width: var(--max-content); }
.page-header .intro {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 48px;
}
.back-link { padding: 0 64px; max-width: var(--max-content); display: block; font-size: 12px; color: var(--ink-soft); }

/* ---------- selected work (home) ---------- */

.selected-work { padding: 0 64px 72px; max-width: var(--max-content); }
.mini-item { margin-bottom: 16px; }
.mini-title { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.mini-desc { font-size: 14px; line-height: 1.55; color: var(--ink-soft); margin: 0; }
.link-more { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--ink-soft); }

/* ---------- notes list ---------- */

.notes-preview, .notes-index { padding: 0 64px 96px; max-width: var(--max-content); }
.notes-index { padding-top: 32px; }
.note-row { padding: 26px 0; border-bottom: 1px solid var(--line); }
.note-row.large { padding: 30px 0; }
.note-date { font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.11em; font-size: 11px; color: var(--accent); margin-bottom: 8px; }
.note-title {
  display: block;
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 22px;
  margin-bottom: 8px;
  color: var(--ink);
}
.note-row.large .note-title { font-size: 26px; margin-bottom: 10px; }
.note-title:hover { color: var(--accent); }
.note-excerpt { font-size: 15px; line-height: 1.6; color: var(--ink-soft); margin: 0; max-width: 680px; }

/* ---------- projects ---------- */

.projects { padding: 0 64px 96px; max-width: var(--max-content); }
.project-row {
  display: flex;
  gap: 40px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items: flex-start;
}
.project-num { font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--accent); width: 40px; flex-shrink: 0; padding-top: 5px; }
.project-body { flex: 1; }
.project-title { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.project-desc { font-size: 15px; line-height: 1.65; color: var(--ink-soft); margin: 0; max-width: 640px; }
.project-status {
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 11px;
  color: var(--ink-soft);
  padding-top: 5px;
  text-align: right;
  flex-shrink: 0;
}
.project-row.highlight .project-status { color: var(--accent); }

/* ---------- publications ---------- */

.publications { padding: 0 64px 96px; max-width: var(--max-content); }
.pub-row { padding: 26px 0; border-bottom: 1px solid var(--line); }
.pub-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.pub-title a { color: var(--ink); }
.pub-title a:hover { color: var(--accent); }
.pub-title .external-icon { margin-left: 6px; vertical-align: baseline; color: var(--ink-soft); }
.pub-title a:hover .external-icon { color: var(--accent); }
.pub-authors { font-size: 14px; line-height: 1.6; color: var(--ink-soft); margin: 0 0 8px; }
.pub-authors strong { color: var(--ink); }
.pub-venue { font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.11em; font-size: 11px; color: var(--accent); }

.talk-row {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
}
.talk-title { font-size: 15px; }
.talk-venue { font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.11em; font-size: 11px; color: var(--ink-soft); flex-shrink: 0; }

.full-list-link { padding-top: 32px; font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--ink-soft); display: block; }

/* ---------- contact ---------- */

.contact { padding: 0 64px 96px; max-width: var(--max-content); }
.contact-list { border-top: 1px solid var(--line); }
.contact-row {
  display: flex;
  justify-content: space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 8px;
}
.contact-row .value { font-size: 16px; }

/* ---------- post ---------- */

.post { padding: 80px 64px 96px; max-width: var(--max-content); }
.post-header { margin-bottom: 40px; }
.post h1 {
  font-family: 'Newsreader', Georgia, serif;
  font-style: italic;
  font-size: 40px;
  font-weight: 500;
  margin: 12px 0 0;
}
.post-body { font-size: 17px; line-height: 1.75; max-width: 680px; }
.post-body p { margin: 0 0 24px; }
.post-body h2 { font-family: 'Newsreader', Georgia, serif; font-size: 26px; font-weight: 500; margin: 48px 0 16px; }
.post-body h3 { font-size: 19px; font-weight: 600; margin: 36px 0 12px; }
.post-body pre {
  background: oklch(95% 0.012 80);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 16px;
  overflow-x: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
}
.post-body code { font-family: 'IBM Plex Mono', monospace; font-size: 0.9em; background: oklch(95% 0.012 80); padding: 2px 5px; border-radius: 2px; }
.post-body pre code { background: none; padding: 0; }
.post-body blockquote {
  margin: 0 0 24px;
  padding-left: 20px;
  border-left: 2px solid var(--line);
  color: var(--ink-soft);
  font-style: italic;
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .site-nav, .site-footer, .hero, .focus, .selected-work, .notes-preview,
  .notes-index, .projects, .publications, .contact, .page-header, .post, .back-link {
    padding-left: 24px;
    padding-right: 24px;
  }
  .site-nav { justify-content: flex-end; }
  .site-nav .wordmark { display: none; }
  .nav-toggle { display: flex; }
  .site-nav .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    order: 3;
  }
  .site-nav.nav-open .nav-links { display: flex; }
  .site-nav .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .site-nav .nav-links a:last-child { border-bottom: none; }
  .hero { padding-top: 56px; }
  .hero .intro { font-size: 18px; }
  .project-row { flex-direction: column; gap: 8px; }
  .project-status { text-align: left; }
  .contact-row { flex-direction: column; }
}