/* ============================================================
   TOKENS — ported from the design prototype (index.html)
   ============================================================ */
:root {
  /* accent (forest) */
  --accent: #1e4d3a;
  --accent-soft: #2a6a51;
  --accent-tint: #eef3ef;

  /* neutrals (warm off-white) */
  --bg: #f4f4f2;
  --surface: #fbfbf9;
  --ink: #1a1a1a;
  --ink-2: #3a3a38;
  --muted: #6a6a66;
  --rule: #d9d8d2;
  --rule-2: #e7e6e1;

  /* type */
  --serif: 'Crimson Pro', 'Iowan Old Style', 'Palatino', Georgia, serif;
  --sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* rhythm */
  --section-pad: 6rem;
  --line: 1.65;
  --measure: 62ch;

  /* ui */
  --radius: 2px;
}

[data-theme="dark"] {
  --bg: #111110;
  --surface: #1a1a19;
  --ink: #eceae3;
  --ink-2: #cfcdc6;
  --muted: #8f8d86;
  --rule: #2a2a28;
  --rule-2: #222220;
  --accent: #6ab18e;
  --accent-soft: #8ccdaa;
  --accent-tint: rgba(255, 255, 255, 0.035);
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: var(--line);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #fff; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color .15s ease, text-decoration-color .15s ease;
}
a:hover { color: var(--accent); text-decoration-thickness: 2px; }

p { margin: 0 0 1em; max-width: var(--measure); text-wrap: pretty; }
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
  line-height: 1.15;
}
h1 { font-size: clamp(2.4rem, 4.2vw, 3.4rem); font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: 1.65rem; }
h3 { font-size: 1.2rem; font-weight: 600; }
small, .meta {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--muted);
  text-transform: uppercase;
}

ul { padding-left: 1.2rem; margin: 0 0 1em; }
ul li { margin-bottom: .35rem; color: var(--ink-2); }
ul li::marker { color: var(--accent); }

/* ============================================================
   LAYOUT
   ============================================================ */
.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

nav.top {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
nav.top .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
nav .brand {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--ink);
}
nav .brand:hover { color: var(--accent); }
nav .links {
  display: flex;
  gap: clamp(1rem, 3vw, 2rem);
  align-items: center;
}
nav .links a {
  font-family: var(--sans);
  font-size: .95rem;
  text-decoration: none;
  color: var(--muted);
  padding: 6px 0;
}
nav .links a:hover, nav .links a.active { color: var(--ink); }
nav .links a.active { border-bottom: 1px solid var(--accent); }

section.block {
  padding: var(--section-pad) 0;
  border-bottom: 1px solid var(--rule-2);
}
section.block:last-of-type { border-bottom: none; }

.section-head {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
  align-items: baseline;
}
.section-head .num {
  font-family: var(--mono);
  color: var(--muted);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding-top: .35rem;
}
.section-head h2 { font-style: italic; font-weight: 500; }

.col-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
}
.col-body > .main { max-width: 720px; }

@media (max-width: 780px) {
  .section-head, .col-body { grid-template-columns: 1fr; gap: 0.5rem; }
  .col-body > .main { max-width: none; }
}

/* ============================================================
   PAGE HEADER (CV / Publications title block)
   ============================================================ */
.page-head {
  padding: clamp(4rem, 9vw, 6rem) 0 clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule-2);
}
.page-head h1 { margin-bottom: .75rem; }
.page-head .page-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink-2);
  max-width: 48ch;
  margin-bottom: 1.5rem;
}
.page-head .page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}
.btn-ghost {
  font-family: var(--mono);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-2);
  border: 1px solid var(--rule);
  padding: 6px 12px;
  border-radius: 2px;
  text-decoration: none;
  background: transparent;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-tint);
  text-decoration: none;
}

/* ============================================================
   CV — roles (experience blocks with bullets)
   ============================================================ */
.roles { display: grid; gap: 2rem; }
.role {
  border-top: 1px solid var(--rule-2);
  padding-top: 1.25rem;
}
.role:first-child { border-top: none; padding-top: 0; }
.role .role-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .5rem 1.5rem;
  margin-bottom: .35rem;
}
.role h3 { font-size: 1.15rem; }
.role .when {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.role .org {
  color: var(--accent);
  font-weight: 500;
  font-size: .98rem;
  margin-bottom: .75rem;
}
.role ul { margin-bottom: .75rem; max-width: 60ch; }
.role ul li { font-size: .98rem; }
.role .tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .8rem;
}
.tag {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.tag::before { content: "#"; color: var(--accent); }

/* ============================================================
   CV — compact rows (education, short lists)
   ============================================================ */
.cv-group { margin-bottom: 2rem; }
.cv-group:last-child { margin-bottom: 0; }
.cv-group > h3 {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-weight: 500;
  padding-bottom: .75rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.cv-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: .75rem 0;
  border-bottom: 1px dotted var(--rule);
}
.cv-row:last-child { border-bottom: none; }
.cv-row .title { font-size: 1rem; font-weight: 500; }
.cv-row .org { color: var(--ink-2); font-size: .95rem; }
.cv-row .when {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  text-align: right;
  align-self: center;
}
@media (max-width: 600px) {
  .cv-row { grid-template-columns: 1fr; }
  .cv-row .when { text-align: left; }
}

/* ============================================================
   SKILLS (grouped tag rows)
   ============================================================ */
.skill-group {
  padding: .75rem 0;
  border-bottom: 1px dotted var(--rule);
}
.skill-group:last-child { border-bottom: none; }
.skill-group .k {
  display: block;
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .5rem;
}
.skill-group .v {
  font-family: var(--sans);
  font-size: .98rem;
  color: var(--ink-2);
  max-width: 62ch;
}

/* ============================================================
   PAPERS — pub list (same as home but no SVG figures)
   ============================================================ */
.paper { margin-bottom: 3rem; }
.paper:last-child { margin-bottom: 0; }
.paper-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: .6rem;
}
.paper-venue {
  font-family: var(--mono);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  padding: 3px 8px;
  background: var(--accent-tint);
  border-radius: 2px;
}
.paper-year {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
}
.paper h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: .5rem;
  line-height: 1.25;
}
.paper .authors {
  font-size: .95rem;
  color: var(--ink-2);
  margin-bottom: .75rem;
}
.paper .authors .me {
  color: var(--ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 2px;
}
.paper .abstract {
  font-size: 1rem;
  color: var(--ink-2);
  max-width: 60ch;
}
.paper .paper-links {
  margin-top: .9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .9rem;
}
.paper .paper-links a {
  text-decoration: none;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .04em;
  font-size: .78rem;
  color: var(--ink-2);
  border: 1px solid var(--rule);
  padding: 4px 10px;
  border-radius: 2px;
}
.paper .paper-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-tint);
}

/* ============================================================
   WRITING LIST
   ============================================================ */
.writing-list .writing-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--rule-2);
  align-items: baseline;
}
.writing-list .writing-item:last-child { border-bottom: 1px solid var(--rule-2); }
.writing-list .when {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--muted);
  text-transform: uppercase;
}
.writing-list h3 { font-size: 1.05rem; font-weight: 500; margin: 0; }
.writing-list h3 a { text-decoration: none; color: var(--ink); }
.writing-list h3 a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent);
}
.writing-list .where {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--muted);
}
@media (max-width: 600px) {
  .writing-list .writing-item { grid-template-columns: 1fr; gap: .2rem; }
}

/* ============================================================
   CONTACT INFO (reused from home)
   ============================================================ */
.contact-info { display: grid; gap: .9rem; max-width: 480px; }
.contact-info .ci {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1rem;
  padding: .6rem 0;
  border-bottom: 1px solid var(--rule-2);
  align-items: baseline;
}
.contact-info .ci .k {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.contact-info .ci .v a {
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
}
.contact-info .ci .v a:hover { color: var(--accent); }

/* ============================================================
   FOOTER
   ============================================================ */
footer.site {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
footer.site .row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ============================================================
   ANCHOR OFFSET + REVEAL
   ============================================================ */
section[id] { scroll-margin-top: 80px; }

.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  nav.top, footer.site { display: none; }
  body { background: #fff; color: #000; }
  section.block { page-break-inside: avoid; border-bottom: 1px solid #ccc; padding: 2rem 0; }
  .btn-ghost { display: none; }
}