:root{
  --ink:#171A1F;
  --paper:#F7F5F0;
  --muted:#6E7280;
  --line:#DDD9CF;
  --signal:#0B6E6E;
  --signal-dim:#DCEAE9;
  --paper-raised:#FBFAF7;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans',sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--signal);text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible, button:focus-visible{outline:2px solid var(--signal); outline-offset:3px;}

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--ink); color:var(--paper); padding:10px 16px; z-index:100;
}
.skip-link:focus{left:12px; top:12px;}

.layout{
  display:grid;
  grid-template-columns:300px 1fr;
  max-width:1180px;
  margin:0 auto;
}

/* Sidebar */
aside{
  padding:64px 40px 64px 24px;
  position:sticky;
  top:0;
  align-self:start;
  height:100vh;
  display:flex;
  flex-direction:column;
}
.avatar{
  width:88px;height:88px;
  border-radius:50%;
  background:linear-gradient(135deg,#0B6E6E,#123B47);
  display:flex;align-items:center;justify-content:center;
  color:#F7F5F0;
  font-family:'Fraunces',serif;
  font-size:32px;
  font-weight:500;
  margin-bottom:24px;
}
.sidebar-name{
  font-family:'Fraunces',serif;
  font-weight:500;
  font-size:26px;
  line-height:1.2;
  letter-spacing:-0.01em;
  margin:0 0 6px 0;
}
.sidebar-role{
  color:var(--muted);
  font-size:14.5px;
  margin:0 0 2px 0;
}
.sidebar-role strong{color:var(--ink); font-weight:500;}

nav{margin-top:40px;}
nav ul{list-style:none;padding:0;margin:0;}
nav li{margin-bottom:2px;}
nav a{
  display:block;
  color:var(--muted);
  font-size:14.5px;
  padding:7px 0;
  border-left:2px solid transparent;
  padding-left:12px;
  margin-left:-13px;
  text-decoration:none;
  transition:color .15s ease, border-color .15s ease;
}
nav a:hover, nav a.active{
  color:var(--ink);
  border-left-color:var(--signal);
}

.sidebar-contact{margin-top:auto; padding-top:32px;}
.sidebar-contact a{
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--muted);
  font-size:13.5px;
  padding:5px 0;
}
.sidebar-contact a:hover{color:var(--signal); text-decoration:none;}
.sidebar-contact svg{flex:none; width:15px;height:15px;}

.resume-btn{
  display:inline-block;
  margin-top:18px;
  padding:9px 16px;
  background:var(--ink);
  color:var(--paper) !important;
  font-size:13.5px;
  font-weight:500;
  border-radius:2px;
}
.resume-btn:hover{background:var(--signal); text-decoration:none;}

/* Main column */
main{
  padding:88px 40px 120px 40px;
  max-width:760px;
}
section{margin-bottom:76px; scroll-margin-top:40px;}
section:first-of-type{margin-top:0;}

h1.hero{
  font-family:'Fraunces',serif;
  font-weight:500;
  font-size:44px;
  line-height:1.15;
  letter-spacing:-0.01em;
  margin:0 0 20px 0;
  max-width:14ch;
}
.hero-sub{
  font-size:18px;
  color:var(--muted);
  max-width:56ch;
  margin:0 0 36px 0;
}
.hero-sub .accent{color:var(--signal); font-weight:500;}

h2.section-title{
  font-family:'Fraunces',serif;
  font-weight:500;
  font-size:22px;
  margin:0 0 28px 0;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}

p{margin:0 0 16px 0; max-width:68ch;}
.lede{font-size:16.5px;}

.tags{display:flex; flex-wrap:wrap; gap:8px; margin-top:20px;}
.tag{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--signal);
  background:var(--signal-dim);
  padding:4px 10px;
  border-radius:2px;
}

/* Timeline */
.role{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:24px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.role:first-child{padding-top:0;}
.role:last-child{border-bottom:none;}
.role-years{
  font-family:'IBM Plex Mono',monospace;
  font-size:12.5px;
  color:var(--muted);
  padding-top:3px;
}
.role-years .current{color:var(--signal);}
.role-title{
  font-size:17px;
  font-weight:500;
  margin:0 0 2px 0;
}
.role-org{
  font-size:14.5px;
  color:var(--muted);
  margin:0 0 10px 0;
}
.role-org a{color:var(--muted);}
.role-org a:hover{color:var(--signal);}
.role p{font-size:15px; margin-bottom:0;}
.role ul{margin:10px 0 0 0; padding-left:18px; font-size:15px;}
.role li{margin-bottom:6px;}

/* Skills */
.skills-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px 32px;
}
.skills-label{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--signal);
  margin:0 0 6px 0;
}
.skills-grid p:not(.skills-label){font-size:14.5px; margin-bottom:0;}

/* Publications */
.pub{
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.pub:first-child{padding-top:0;}
.pub:last-child{border-bottom:none;}
.pub-title{font-size:16px; font-weight:500; margin:0 0 4px 0;}
.pub-title a{color:var(--ink);}
.pub-title a:hover{color:var(--signal);}
.pub-meta{font-size:13.5px; color:var(--muted); margin:0 0 8px 0;}
.pub p{font-size:14.5px; color:var(--ink); margin-bottom:0;}

/* Projects */
.proj-grid{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border:1px solid var(--line);}
.proj{background:var(--paper-raised); padding:22px;}
.proj-title{font-size:15.5px; font-weight:500; margin:0 0 6px 0;}
.proj-title a{color:var(--ink);}
.proj-title a:hover{color:var(--signal);}
.proj-org{font-size:12.5px; color:var(--muted); margin:0 0 10px 0;}
.proj p{font-size:14px; margin-bottom:0; color:var(--ink);}

.more-toggle{
  display:block;
  margin-top:20px;
  background:none;
  border:1px solid var(--line);
  color:var(--ink);
  font-family:'IBM Plex Sans',sans-serif;
  font-size:13.5px;
  padding:9px 16px;
  border-radius:2px;
  cursor:pointer;
}
.more-toggle:hover{border-color:var(--signal); color:var(--signal);}
.more-projects{margin-top:1px;}
.more-projects[hidden]{display:none;}

/* Contact */
footer.contact-section{padding-top:24px;}
.contact-row{display:flex; gap:28px; flex-wrap:wrap; margin-top:20px;}
.contact-row a{font-size:14.5px; display:flex; align-items:center; gap:8px; color:var(--ink);}
.contact-row a:hover{color:var(--signal);}
.fine-print{font-size:12.5px; color:var(--muted); margin-top:40px;}

@media (max-width:860px){
  .layout{grid-template-columns:1fr;}
  aside{position:relative; height:auto; padding:40px 24px 20px 24px;}
  nav{margin-top:24px;}
  .sidebar-contact{margin-top:24px; padding-top:0;}
  main{padding:24px 24px 80px 24px;}
  h1.hero{font-size:32px;}
  .proj-grid{grid-template-columns:1fr;}
  .role{grid-template-columns:1fr; gap:6px;}
  .skills-grid{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
}