:root{
  --paper:#F6F4EE;
  --paper-raised:#FBFAF6;
  --ink:#1E2A3A;
  --ink-soft:#4B5768;
  --rule:#CBC3AE;
  --rule-strong:#A79D82;
  --stamp:#A63A2E;
  --navy:#24344D;
}

:root[data-theme="dark"]{
  --paper:#14181F;
  --paper-raised:#1B212B;
  --ink:#EDE9DF;
  --ink-soft:#9BA3B0;
  --rule:#2B3240;
  --rule-strong:#3D4658;
  --stamp:#D6A84F;
  --navy:#EDE9DF;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Newsreader', Georgia, serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  transition:background .2s ease, color .2s ease;
}

a{color:var(--navy);}
a:focus-visible, button:focus-visible{
  outline:2px solid var(--stamp);
  outline-offset:3px;
}

.mono{
  font-family:'Fira Code', ui-monospace, monospace;
}

/* ---------- theme toggle ---------- */
.theme-toggle{
  font-family:'Fira Code', monospace;
  font-size:12px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-soft);
  background:transparent;
  border:1px solid var(--rule-strong);
  border-radius:20px;
  padding:6px 14px;
  cursor:pointer;
  transition:color .15s ease, border-color .15s ease, background .15s ease;
}
.theme-toggle:hover{
  color:var(--stamp);
  border-color:var(--stamp);
}

/* ---------- shell ---------- */
.wrap{
  max-width:960px;
  margin:0 auto;
  padding:0 40px;
}

/* ---------- nav ---------- */
header.top{
  border-bottom:2px solid var(--ink);
  padding-top:36px;
}
.top-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}
.eyebrow-mini{
  font-family:'Fira Code', monospace;
  font-size:19px;
  font-weight:600;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-soft);
  text-decoration:none;
}
.eyebrow-mini:hover{color:var(--stamp);}
nav.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:20px;
}
nav.tabs a{
  font-family:'Fira Code', monospace;
  font-size:12.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink-soft);
  padding:10px 16px 10px 0;
  margin-right:16px;
  border-bottom:2px solid transparent;
}
nav.tabs a:hover{color:var(--stamp);}
nav.tabs a.active{
  color:var(--ink);
  border-bottom:2px solid var(--stamp);
}

/* ---------- page header (per-page title block) ---------- */
.page-head{
  padding:34px 0 6px;
}
.line-no{
  font-family:'Fira Code', monospace;
  font-size:13px;
  color:var(--stamp);
}
.page-head h1{
  margin:8px 0 0;
  font-size:clamp(2.2rem, 5.5vw, 3rem);
  font-weight:600;
  letter-spacing:-0.01em;
}
p.lede{
  max-width:60ch;
  color:var(--ink-soft);
  margin-top:12px;
}

/* ---------- hero / statement header (home page only) ---------- */
.statement-head{
  padding:34px 0 30px;
}
.head-flex{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:28px;
}
.photo-frame{
  flex:0 0 auto;
  width:200px;
  height:200px;
  margin-top:20px;
  border-radius:50%;
  border:1px solid var(--rule-strong);
  background:var(--paper-raised);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  overflow:hidden;
}
.photo-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.photo-frame .photo-label{
  font-family:'Fira Code', monospace;
  font-size:10px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-soft);
  padding:0 10px;
}
@media (max-width:560px){
  .head-flex{
    flex-direction:column-reverse;
  }
  .photo-frame{
    width:104px;
    height:104px;
    margin-top:0;
  }
}
.eyebrow{
  font-family:'Fira Code', monospace;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--stamp);
  margin:0 0 14px;
}
h1.name{
  margin:0;
  font-size:clamp(2.4rem, 5.5vw, 3.4rem);
  font-weight:600;
  letter-spacing:-0.01em;
}
.role-line{
  margin:10px 0 0;
  font-family:'Fira Code', monospace;
  font-size:16.5px;
  color:var(--ink-soft);
}
.abstract{
  margin:22px 0 0;
  max-width:80ch;
  color:var(--ink);
  font-size:17px;
}
.abstract .tag{
  font-family:'Fira Code', monospace;
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--ink-soft);
  display:block;
  margin-bottom:6px;
  text-transform:uppercase;
}

/* ---------- balance snapshot (signature element) ---------- */
.balance{
  margin-top:30px;
  border:1px solid var(--rule-strong);
  background:var(--paper-raised);
}
.balance-title{
  font-family:'Fira Code', monospace;
  font-size:11.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  padding:12px 18px;
  border-bottom:1px solid var(--rule);
}
.balance-cols{
  display:grid;
  grid-template-columns:1fr 1fr;
}
.balance-cols > div{padding:16px 18px;}
.balance-cols > div:first-child{border-right:1px solid var(--rule);}
.balance-cols h3{
  margin:0 0 10px;
  font-family:'Fira Code', monospace;
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--navy);
}
.balance-cols ul{
  margin:0; padding:0; list-style:none;
  font-size:14.5px;
  color:var(--ink-soft);
}
.balance-cols li{
  padding:5px 0;
  border-bottom:1px dashed var(--rule);
}
.balance-cols li:last-child{border-bottom:none;}
@media (max-width:520px){
  .balance-cols{grid-template-columns:1fr;}
  .balance-cols > div:first-child{border-right:none;border-bottom:1px solid var(--rule);}
}

/* ---------- page body sections ---------- */
main{
  padding-bottom:40px;
}
section{
  padding:36px 0 52px;
}

/* research list = journal entries */
.entries{
  margin-top:20px;
  display:flex;
  flex-direction:column;
}
.entry{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:18px;
  padding:16px 0;
  border-top:1px dashed var(--rule);
}
.entry:first-child{border-top:none;}
.entry .status{
  font-family:'Fira Code', monospace;
  font-size:11.5px;
  color:var(--ink-soft);
  letter-spacing:.03em;
  padding-top:2px;
}
.entry h3{
  margin:0 0 6px;
  font-size:1.02rem;
  font-weight:600;
}
.entry p{
  margin:0;
  color:var(--ink-soft);
  font-size:15px;
}
@media (max-width:520px){
  .entry{grid-template-columns:1fr;}
}

/* CV = ledger rows, right-aligned dates like amounts */
.ledger-rows{margin-top:8px;}
.ledger-group{margin-bottom:26px;}
.ledger-group h3{
  font-family:'Fira Code', monospace;
  font-size:11.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--navy);
  margin:0 0 10px;
}
.ledger-row{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:9px 0;
  border-bottom:1px dashed var(--rule);
}
.ledger-row:last-child{border-bottom:none;}
.ledger-row .desc{font-size:15px;}
.ledger-row .amt{
  font-family:'Fira Code', monospace;
  font-size:13.5px;
  color:var(--ink-soft);
  white-space:nowrap;
}

.cv-download{
  display:inline-block;
  margin-top:22px;
  font-family:'Fira Code', monospace;
  font-size:12.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--paper);
  background:var(--ink);
  padding:11px 20px;
  border:1px solid var(--ink);
  transition:background .15s ease, color .15s ease;
}
.cv-download:hover{
  background:var(--paper);
  color:var(--ink);
}

/* teaching */
.courses{
  margin-top:18px;
  display:grid;
  gap:14px;
}
.course{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:14px 16px;
  background:var(--paper-raised);
  border:1px solid var(--rule);
}
.course .code{
  font-family:'Fira Code', monospace;
  font-size:12.5px;
  color:var(--stamp);
  white-space:nowrap;
}

/* contact / footer as signatures */
.signatures{
  margin-top:24px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.sig{
  border-top:1px solid var(--ink);
  padding-top:10px;
}
.sig .label{
  font-family:'Fira Code', monospace;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--ink-soft);
  display:block;
  margin-bottom:4px;
}
.sig a{
  text-decoration:none;
  font-size:16px;
  border-bottom:1px solid var(--rule-strong);
}
.sig a:hover{color:var(--stamp); border-color:var(--stamp);}
@media (max-width:520px){
  .signatures{grid-template-columns:1fr;}
}

footer{
  padding:30px 0 60px;
  border-top:1px solid var(--rule);
  margin-top:20px;
  font-family:'Fira Code', monospace;
  font-size:11.5px;
  color:var(--ink-soft);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}

@media (prefers-reduced-motion: no-preference){
  .fade-in{
    animation:fadeIn .5s ease both;
  }
  @keyframes fadeIn{
    from{opacity:0; transform:translateY(6px);}
    to{opacity:1; transform:translateY(0);}
  }
}