:root{
  --crimson:#B0122A;
  --crimson-dark:#8A0E21;
  --ink:#1a1816;
  --charcoal:#1c1a19;
  --charcoal-2:#242220;
  --paper:#faf9f7;
  --paper-2:#f1efec;
  --line:#e4e0da;
  --text:#2a2724;
  --text-soft:#655f58;
  --text-invert:#f2f0ec;
  --text-invert-soft:#a9a39a;
  --radius:10px;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --display:'Space Grotesk',var(--sans);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--paper);
  color:var(--text);
  line-height:1.55;
}

.skip-link{
  position:absolute;left:-999px;top:0;
  background:var(--crimson);color:#fff;padding:.6rem 1rem;z-index:100;
}
.skip-link:focus{left:0;}

.layout{
  display:flex;
  min-height:100vh;
  align-items:flex-start;
}

/* ---------- Sidebar ---------- */
.sidebar{
  width:320px;
  flex:none;
  background:var(--charcoal);
  color:var(--text-invert);
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  scrollbar-width:thin;
}
.sidebar-inner{
  padding:2.5rem 1.75rem 2rem;
  display:flex;
  flex-direction:column;
  gap:1.75rem;
}

.headshot{
  width:250px;
  height:250px;
  border-radius:50%;
  object-fit:cover;
  object-position:top center;
  border:3px solid var(--crimson);
  display:block;
  margin-bottom:1.1rem;
}

.name{
  font-family:var(--display);
  font-weight:700;
  font-size:1.5rem;
  line-height:1.15;
  margin:0 0 .6rem;
  color:#fff;
}
.role{
  margin:0 0 .5rem;
  font-size:.92rem;
  font-weight:600;
  color:var(--text-invert);
}
.org{
  margin:0 0 .35rem;
  font-size:.85rem;
  color:var(--text-invert-soft);
}
.loc{
  margin:0;
  font-size:.78rem;
  color:var(--text-invert-soft);
  text-transform:uppercase;
  letter-spacing:.06em;
}

.stats-block{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:.5rem;
  padding:1.1rem 0;
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.stat{display:flex;flex-direction:column;align-items:flex-start;}
.stat-num{
  font-family:var(--display);
  font-weight:700;
  font-size:1.35rem;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-label{
  font-size:.68rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--text-invert-soft);
  margin-top:.15rem;
}
.stats-source{
  grid-column:1 / -1;
  margin:.7rem 0 0;
  font-size:.68rem;
  color:var(--text-invert-soft);
}
.stats-source a{
  color:var(--text-invert-soft);
  text-decoration:underline;
  text-underline-offset:2px;
}
.stats-source a:hover{color:#fff;}

.pdf-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  background:var(--crimson);
  color:#fff;
  text-decoration:none;
  font-weight:600;
  font-size:.88rem;
  padding:.7rem 1rem;
  border-radius:8px;
  transition:background .15s ease;
}
.pdf-btn:hover{background:var(--crimson-dark);}

.section-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:.15rem;
}
.section-nav a{
  display:block;
  color:var(--text-invert-soft);
  text-decoration:none;
  font-size:.86rem;
  font-weight:500;
  padding:.4rem .6rem;
  border-radius:6px;
  border-left:2px solid transparent;
  transition:color .15s ease, background .15s ease, border-color .15s ease;
}
.section-nav a:hover{color:#fff;background:rgba(255,255,255,.06);}
.section-nav a.active{
  color:#fff;
  background:rgba(176,18,42,.18);
  border-left-color:var(--crimson);
}

.sidebar-footer{
  display:flex;
  flex-wrap:wrap;
  gap:.9rem;
  padding-top:1.25rem;
  border-top:1px solid rgba(255,255,255,.12);
}
.sidebar-footer a{
  color:var(--text-invert-soft);
  text-decoration:none;
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.02em;
}
.sidebar-footer a:hover{color:var(--crimson);}

/* ---------- Content ---------- */
.content{
  flex:1;
  min-width:0;
  padding:3.5rem clamp(1.5rem, 5vw, 5rem) 5rem;
  max-width:880px;
}

.section{
  padding-bottom:3.5rem;
  margin-bottom:3.5rem;
  border-bottom:1px solid var(--line);
  scroll-margin-top:2rem;
}
.section:last-of-type{border-bottom:none;}

.eyebrow{
  margin:0 0 .35rem;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--crimson);
}
.section h2{
  font-family:var(--display);
  font-size:2rem;
  font-weight:700;
  margin:0 0 1.4rem;
  color:var(--ink);
}
.lede{
  font-size:1.15rem;
  color:var(--text-soft);
  max-width:56ch;
  margin:-0.6rem 0 1.75rem;
}

.bio-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.5rem 1.6rem;
}
.bio-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:.9rem;
}
.bio-card-title{
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--text-soft);
}
.copy-btn{
  font-family:var(--sans);
  font-size:.78rem;
  font-weight:600;
  color:var(--crimson);
  background:#fff;
  border:1px solid var(--line);
  border-radius:6px;
  padding:.35rem .7rem;
  cursor:pointer;
  transition:border-color .15s ease, color .15s ease;
}
.copy-btn:hover{border-color:var(--crimson);}
.bio-card p{margin:0 0 .9rem;color:var(--text);}
.bio-card p:last-child{margin-bottom:0;}

/* Timeline (appointments / education / industry) */
.timeline{list-style:none;margin:0;padding:0;}
.timeline-item{
  display:grid;
  grid-template-columns:100px 1fr;
  gap:1.25rem;
  padding:1.1rem 0;
  border-top:1px solid var(--line);
}
.timeline-item:first-child{border-top:none;padding-top:0;}
.timeline-date{
  font-family:var(--display);
  font-weight:600;
  font-size:.88rem;
  color:var(--crimson);
  white-space:nowrap;
  padding-top:.1rem;
}
.timeline-body h3{
  margin:0 0 .2rem;
  font-size:1.05rem;
  font-weight:700;
  color:var(--ink);
}
.timeline-body p{margin:0 0 .2rem;color:var(--text-soft);}
.timeline-body .place{font-size:.85rem;color:var(--text-soft);opacity:.85;}
.timeline-body ul{margin:.6rem 0 0;padding-left:1.1rem;}
.timeline-body li{margin-bottom:.3rem;color:var(--text);}

.tag{
  display:inline-block;
  font-size:.68rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:var(--crimson);
  background:rgba(176,18,42,.1);
  padding:.15rem .5rem;
  border-radius:5px;
  vertical-align:middle;
  margin-left:.4rem;
}

/* Publications / working papers / practitioner */
.pub{
  padding:1.1rem 0;
  border-top:1px solid var(--line);
}
.pub:first-child{border-top:none;padding-top:0;}
.pub h3{
  margin:0 0 .35rem;
  font-size:1.05rem;
  font-weight:700;
  color:var(--ink);
  line-height:1.4;
}
.pub h3 a{
  color:inherit;
  text-decoration:none;
  border-bottom:1px solid var(--line);
}
.pub h3 a:hover{border-bottom-color:var(--crimson);color:var(--crimson);}
.pub-meta{margin:0;color:var(--text-soft);font-size:.92rem;}
.pub-meta + .pub-meta{margin-top:.3rem;}
.pub-meta a{color:var(--crimson);text-decoration:none;border-bottom:1px solid transparent;}
.pub-meta a:hover{border-bottom-color:var(--crimson);}
.pub-notes{
  margin:.6rem 0 0;
  padding-left:1.1rem;
}
.pub-notes li{
  margin-bottom:.3rem;
  font-size:.88rem;
  color:var(--text-soft);
}

/* Presentations */
.talk{padding:1.1rem 0;border-top:1px solid var(--line);}
.talk:first-child{border-top:none;padding-top:0;}
.talk h3{
  margin:0 0 .6rem;
  font-size:1rem;
  font-weight:700;
  color:var(--ink);
  line-height:1.4;
}
.venue-list{
  margin:0;
  padding:0;
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:.4rem .5rem;
}
.venue-list li{
  font-size:.8rem;
  color:var(--text-soft);
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:20px;
  padding:.3rem .75rem;
}

/* Teaching two-col */
.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:2.5rem;
}
.col-title{
  font-size:.85rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--crimson);
  margin:0 0 .8rem;
}
.plain-list{list-style:none;margin:0;padding:0;}
.plain-list li{
  padding:.55rem 0;
  border-top:1px solid var(--line);
  font-size:.92rem;
  color:var(--text);
}
.plain-list li:first-child{border-top:none;padding-top:0;}
.plain-list .place{
  display:block;
  font-size:.8rem;
  color:var(--text-soft);
  margin-top:.15rem;
}

.referee-list{
  font-size:.92rem;
  color:var(--text-soft);
  line-height:1.8;
}

.page-footer{
  margin-top:2rem;
  font-size:.8rem;
  color:var(--text-soft);
}
.page-footer a{color:var(--crimson);}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .layout{flex-direction:column;}
  .sidebar{
    width:100%;
    position:relative;
    height:auto;
    top:auto;
  }
  .sidebar-inner{
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    gap:1rem 1.5rem;
    padding:1.5rem 1.5rem;
  }
  .id-block{display:flex;align-items:center;gap:1rem;}
  .headshot{margin-bottom:0;width:64px;height:64px;}
  .name{font-size:1.2rem;}
  .role,.org,.loc{display:none;}
  .stats-block{display:none;}
  .section-nav{display:none;}
  .sidebar-footer{border-top:none;padding-top:0;margin-left:auto;}
  .pdf-btn{margin-left:auto;padding:.55rem .9rem;font-size:.82rem;}
  .content{padding:2rem 1.25rem 3rem;max-width:none;}
  .two-col{grid-template-columns:1fr;gap:1.5rem;}
}

@media (max-width:520px){
  .sidebar-inner{padding:1.25rem 1rem;}
  .sidebar-footer{display:none;}
  .timeline-item{grid-template-columns:1fr;gap:.3rem;}
}