@import url('https://fonts.googleapis.com/css2?family=Petrona:opsz,wght@8..30,400;8..30,500;8..30,600;8..30,700&family=Nunito+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root{
  --ink:#1D211C;
  --paper:#F3EFE4;
  --paper-warm:#FAF7EE;
  --teal:#26443F;
  --teal-deep:#152826;
  --rust:#C1673A;
  --moss:#7A8B54;
  --line: rgba(29,33,28,0.14);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Nunito Sans', sans-serif;
  font-size:17px;
  line-height:1.6;
}
h1,h2,h3,h4{
  font-family:'Petrona', serif;
  margin:0;
  font-weight:600;
  letter-spacing:-0.01em;
}
a{color:inherit;}
img{max-width:100%; display:block;}
.mono{
  font-family:'JetBrains Mono', monospace;
  letter-spacing:0.03em;
}
.species{font-style:italic;}
.wrap{
  max-width:1500px;
  margin:0 auto;
  padding:0 48px;
}

/* ============ SIDEBAR LAYOUT (site-wide) ============ */
.layout{display:grid; grid-template-columns:230px 1fr; align-items:start;}
.sidebar{
  background:var(--teal-deep);
  color:var(--paper-warm);
  padding:34px 26px;
  position:sticky;
  top:0;
  align-self:start;
  height:100vh;
  display:flex;
  flex-direction:column;
}
.sidebar-top{display:flex; align-items:center; justify-content:space-between;}
.brand{
  font-family:'Petrona', serif;
  font-size:18.5px;
  font-weight:600;
  line-height:1.4;
  display:block;
  text-decoration:none;
  color:inherit;
}
.brand span{color:var(--rust);}

.sidebar-toggle{
  display:none;
  background:none; border:none; cursor:pointer; padding:6px;
  flex-direction:column; gap:5px;
}
.sidebar-toggle span{width:22px; height:2px; background:var(--paper-warm); display:block; border-radius:1px;}

.sidebar-collapsible{display:flex; flex-direction:column; flex:1; margin-top:44px;}
.sidebar-collapsible ul{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:2px;}
.sidebar-collapsible a.navlink{
  text-decoration:none;
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  text-transform:uppercase;
  letter-spacing:0.06em;
  color:rgba(248,246,237,0.6);
  padding:11px 0;
  display:block;
  border-bottom:1px dashed rgba(248,246,237,0.15);
}
.sidebar-collapsible a.navlink.active, .sidebar-collapsible a.navlink:hover{color:var(--rust);}

.foot-mini{margin-top:auto; padding-top:30px; font-family:'JetBrains Mono', monospace; font-size:11px; color:rgba(248,246,237,0.5); line-height:1.9;}
.foot-mini a{color:rgba(248,246,237,0.7); text-decoration:none;}
.foot-mini a:hover{color:var(--rust);}
.foot-mini .foot-links{display:flex; flex-direction:column; gap:2px; margin-top:14px; padding-top:14px; border-top:1px dashed rgba(248,246,237,0.15);}
.foot-mini .copyright{margin-top:16px; padding-top:14px; border-top:1px dashed rgba(248,246,237,0.15); opacity:0.7;}

main{min-width:0;}

@media (max-width:860px){
  .layout{grid-template-columns:1fr;}
  .sidebar{position:relative; height:auto; padding:20px 24px;}
  .sidebar-toggle{display:flex;}
  .sidebar-collapsible{display:none; margin-top:22px;}
  .sidebar-collapsible.open{display:flex;}
  .wrap{padding:0 24px;}
}

/* ============ HERO (homepage) ============ */
.hero{padding:64px 0 54px;}
.hero .wrap{display:grid; grid-template-columns:1.15fr 0.85fr; gap:40px; align-items:center;}
.eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--rust);
  margin-bottom:16px;
  display:block;
}
.hero h1{font-size:clamp(32px, 4.2vw, 46px); line-height:1.12;}
.hero h1 em{font-style:italic; color:var(--rust); font-weight:600;}
.hero p.lede{margin-top:18px; max-width:46ch; font-size:16.5px; color:rgba(29,33,28,0.78);}
.hero-ctas{margin-top:26px; display:flex; gap:14px; flex-wrap:wrap;}
.btn{
  display:inline-block;
  padding:12px 22px;
  border-radius:999px;
  font-size:13.5px;
  font-weight:700;
  text-decoration:none;
  border:1.5px solid transparent;
}
.btn-solid{background:var(--rust); color:#fff;}
.btn-solid:hover{background:#a8552d;}
.btn-outline{border-color:var(--teal); color:var(--teal);}
.btn-outline:hover{background:var(--teal); color:#fff;}

.hero-art{display:flex; justify-content:center;}
.photo-circle{
  width:100%; max-width:260px; aspect-ratio:1/1; border-radius:50%;
  background:radial-gradient(circle at 30% 30%, var(--moss), var(--teal) 75%);
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,0.75);
  font-family:'JetBrains Mono', monospace; font-size:11.5px; text-align:center;
  box-shadow:0 20px 44px -20px rgba(21,40,38,0.5);
  position:relative;
}
.photo-circle::before{content:''; position:absolute; inset:14%; border-radius:50%; border:1.5px dashed rgba(255,255,255,0.35);}
.photo-circle::after{content:''; position:absolute; inset:28%; border-radius:50%; border:1.5px dashed rgba(255,255,255,0.3);}
.photo-circle img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; border-radius:50%;}

@media (max-width:860px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero-art{order:-1; margin-bottom:8px;}
  .photo-circle{max-width:220px;}
}

/* ============ PAGE HERO (interior pages) ============ */
.page-hero{padding:56px 0 46px;}
.page-hero h1{font-size:clamp(30px, 4vw, 42px);}
.page-hero p.lede{margin-top:14px; max-width:60ch; font-size:16.5px; color:rgba(29,33,28,0.78);}

/* ============ SECTION SCAFFOLD ============ */
section{padding:52px 0;}
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  margin-bottom:34px; gap:20px; flex-wrap:wrap;
  border-bottom:1px solid var(--line);
  padding-bottom:18px;
}
.tag{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--moss);
}
.section-head h2{font-size:27px; margin-top:6px;}
.more-link{font-size:12.5px; text-decoration:none; color:var(--moss); font-family:'JetBrains Mono', monospace;}
.more-link:hover{color:var(--rust);}

/* ============ RESEARCH — homepage teaser grid ============ */
.research-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:18px;}
.research-card{background:var(--paper-warm); border-radius:20px; padding:24px 22px; box-shadow:0 10px 26px -18px rgba(29,33,28,0.25);}
.research-card .num{width:30px; height:30px; border-radius:50%; background:var(--rust); color:#fff; display:flex; align-items:center; justify-content:center; font-family:'JetBrains Mono', monospace; font-size:12px; margin-bottom:12px;}
.research-card h3{font-size:17px; margin-bottom:6px;}
.research-card p{font-size:13.5px; color:rgba(29,33,28,0.75); margin:0;}

/* ============ RESEARCH — full page long-form entries ============ */
.research-entry{display:grid; grid-template-columns:64px 1fr; gap:24px; padding:38px 0; border-bottom:1px solid var(--line);}
.research-entry:first-child{padding-top:0;}
.research-entry .num-circle{width:44px; height:44px; border-radius:50%; background:var(--rust); color:#fff; display:flex; align-items:center; justify-content:center; font-family:'JetBrains Mono', monospace; font-size:15px;}
.research-entry h3{font-size:24px; margin-bottom:14px;}
.research-entry p{font-size:15.5px; color:rgba(29,33,28,0.8); margin:0 0 12px;}
.research-entry p:last-child{margin-bottom:0;}
.research-entry ul{margin:0 0 12px; padding-left:22px; font-size:15.5px; color:rgba(29,33,28,0.8); line-height:1.6;}
.research-entry ul li{margin-bottom:6px;}
.research-entry ul li:last-child{margin-bottom:0;}

.research-figure{margin-top:22px;}
.research-figure .figure-placeholder{
  width:100%; aspect-ratio:16/10; border-radius:20px;
  border:1.5px dashed var(--line);
  display:flex; align-items:center; justify-content:center;
  color:rgba(29,33,28,0.45); font-family:'JetBrains Mono', monospace; font-size:12px; text-align:center; padding:16px;
}
.research-figure img{width:100%; height:auto; border-radius:20px; display:block;}
.research-figure figcaption{margin-top:8px; font-family:'JetBrains Mono', monospace; font-size:12px; color:rgba(29,33,28,0.55); line-height:1.5;}
.research-figure-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:18px; margin-top:22px;}
.research-figure-grid .research-figure{margin-top:0;}
.research-figure-grid .figure-placeholder{aspect-ratio:4/3;}
@media (max-width:640px){ .research-figure-grid{grid-template-columns:1fr;} }

/* ============ SCROLLING GALLERY (rounded, auto-scroll on hover) ============ */
.gallery{display:flex; gap:14px; overflow-x:auto; scroll-snap-type:x mandatory; padding-bottom:6px; scrollbar-width:thin; scrollbar-color:var(--rust) var(--paper);}
.gallery::-webkit-scrollbar{height:7px;}
.gallery::-webkit-scrollbar-track{background:var(--paper);}
.gallery::-webkit-scrollbar-thumb{background:var(--rust); border-radius:4px;}
.gallery-item{
  flex:0 0 auto; width:200px; aspect-ratio:1/1; border-radius:24px; scroll-snap-align:start;
  background:linear-gradient(135deg, var(--moss), var(--teal));
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,0.75); font-family:'JetBrains Mono', monospace; font-size:11.5px; text-align:center; padding:14px;
  overflow:hidden; position:relative;
}
.gallery-item img{width:100%; height:100%; object-fit:cover; display:block;}
.gallery-item:nth-child(2n){background:linear-gradient(135deg, var(--rust), var(--teal-deep));}
.gallery-item:nth-child(3n){background:linear-gradient(135deg, var(--teal), var(--moss));}
.gallery-caption{margin-top:14px; font-family:'JetBrains Mono', monospace; font-size:12px; color:rgba(29,33,28,0.5);}
.gallery.auto-scrolling{scroll-snap-type:none; scroll-behavior:auto;}

/* ============ PEOPLE — homepage scrolling strip ============ */
.people-strip{display:flex; gap:26px; overflow-x:auto; padding-bottom:8px; scrollbar-width:thin; scrollbar-color:var(--rust) var(--paper);}
.person-card-link{text-decoration:none; color:inherit;}
.person-card{flex:0 0 auto; width:150px; text-align:center;}
.person-photo{
  width:150px; height:150px; border-radius:50%;
  background:linear-gradient(160deg, var(--teal), var(--moss));
  margin:0 auto 12px; box-shadow:0 12px 26px -14px rgba(29,33,28,0.35);
  position:relative; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,0.65); font-family:'JetBrains Mono', monospace; font-size:10px; text-align:center; padding:8px;
}
.person-photo::after{content:''; position:absolute; inset:10%; border-radius:50%; border:1px dashed rgba(255,255,255,0.3); pointer-events:none;}
.person-photo img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover;}
.person-card h4{font-size:14.5px;}
.person-card .role{font-family:'JetBrains Mono', monospace; font-size:10.5px; color:var(--moss); text-transform:uppercase; margin-top:2px;}

/* ============ PEOPLE — full page grid ============ */
.people-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(230px, 1fr)); gap:40px 28px;}
.people-grid .person-card{width:auto; scroll-margin-top:24px;}
.people-grid .person-photo{width:180px; height:180px;}
.people-grid .links{margin-top:10px; display:flex; gap:12px; font-size:13px; justify-content:center;}
.people-grid .links a{color:var(--moss); text-decoration:none;}
.people-grid .links a:hover{color:var(--rust);}
.people-grid .bio{font-size:14.5px; color:rgba(29,33,28,0.72); margin-top:12px; text-align:left;}

.alumni-list li{display:flex; flex-direction:column; gap:4px; padding:14px 0; border-bottom:1px solid var(--line); font-size:15px;}
.alumni-list li:last-child{border-bottom:none;}
.alumni-top{display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;}
.alumni-now{font-size:13.5px; color:rgba(29,33,28,0.6); font-style:italic;}

.recruiting{margin-top:32px; padding:20px 24px; background:var(--paper-warm); border-radius:16px; border-left:3px solid var(--rust); font-size:15px;}
.recruiting strong{font-family:'Petrona', serif; font-weight:600;}

/* ============ SOFTWARE — homepage teaser ============ */
.software-strip{display:flex; gap:18px; overflow-x:auto; padding-bottom:8px;}
.software-card-mini{min-width:210px; flex:0 0 auto; padding:22px 20px; background:var(--paper-warm); border-radius:18px; box-shadow:0 10px 26px -18px rgba(29,33,28,0.25);}
.software-card-mini .mono{font-size:11px; color:var(--rust); text-transform:uppercase; letter-spacing:0.06em; display:block; margin-bottom:10px;}
.software-card-mini h4{font-size:16px; margin-bottom:6px;}
.software-card-mini p{font-size:13px; color:rgba(29,33,28,0.72); margin:0;}

/* ============ SOFTWARE — full page grid ============ */
.software-grid{display:grid; grid-template-columns:repeat(auto-fill, minmax(270px, 1fr)); gap:24px;}
.software-card{padding:28px 26px; background:var(--paper-warm); border-radius:20px; box-shadow:0 10px 26px -18px rgba(29,33,28,0.2);}
.software-card h3{font-size:19px; margin-bottom:10px;}
.software-card p{font-size:14.5px; color:rgba(29,33,28,0.78); margin:0 0 16px;}
.software-card .links{display:flex; gap:16px; font-size:13px; font-family:'JetBrains Mono', monospace;}
.software-card .links a{color:var(--moss); text-decoration:none;}
.software-card .links a:hover{color:var(--rust);}
.software-card .ref{margin-top:12px; font-size:12.5px; color:rgba(29,33,28,0.55); font-style:italic;}

/* ============ NEWS ============ */
.news-list{list-style:none; margin:0; padding:0;}
.news-list li{display:grid; grid-template-columns:120px 1fr; gap:20px; padding:18px 0; border-bottom:1px solid var(--line);}
.news-list li:first-child{padding-top:0;}
.news-list li:last-child{border-bottom:none;}
.news-date{font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--rust); padding-top:2px;}
.news-text{display:flex; gap:16px; align-items:flex-start;}
.news-thumb{
  width:64px; height:64px; border-radius:14px; object-fit:cover; flex:0 0 auto;
  background:linear-gradient(135deg, var(--moss), var(--teal));
}
.news-text-body{flex:1; min-width:0;}
.news-text-body strong{font-family:'Petrona', serif; font-weight:600; color:var(--ink); display:block; margin-bottom:2px;}
.news-text-body p{margin:0; font-size:14.5px; color:rgba(29,33,28,0.8);}
.news-link{display:inline-block; margin-top:8px; font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--moss); text-decoration:none;}
.news-link:hover{color:var(--rust);}
@media (max-width:560px){ .news-list li{grid-template-columns:1fr;} .news-text{flex-direction:column;} }

/* ============ PUBLICATIONS ============ */
.pub-filter{display:flex; gap:10px; margin-bottom:32px; flex-wrap:wrap;}
.pub-filter button{
  font-family:'JetBrains Mono', monospace; font-size:12.5px; text-transform:uppercase; letter-spacing:0.05em;
  padding:8px 16px; background:transparent; border:1px solid var(--line); border-radius:20px; cursor:pointer; color:var(--ink);
}
.pub-filter button.active{background:var(--teal); color:#fff; border-color:var(--teal);}
.pub-list{list-style:none; margin:0; padding:0;}
.pub-list li{display:grid; grid-template-columns:70px 1fr; gap:24px; padding:20px 0; border-bottom:1px solid var(--line);}
.pub-list li:first-child{padding-top:0;}
.pub-year{font-family:'JetBrains Mono', monospace; font-size:14px; color:var(--rust); padding-top:2px;}
.pub-title{font-size:15.5px; margin-bottom:4px; font-weight:600;}
.pub-meta{font-size:13.5px; color:rgba(29,33,28,0.6);}
.pub-links{margin-top:6px; display:flex; gap:14px;}
.pub-links a{font-size:12.5px; font-family:'JetBrains Mono', monospace; color:var(--moss); text-decoration:none;}
.pub-links a:hover{color:var(--rust);}
.pub-badge{display:inline-block; margin-left:8px; font-size:10px; font-family:'JetBrains Mono', monospace; text-transform:uppercase; letter-spacing:0.05em; color:var(--moss); border:1px solid var(--line); border-radius:10px; padding:2px 8px; vertical-align:middle;}
@media (max-width:560px){ .pub-list li{grid-template-columns:1fr; gap:4px;} }

/* ============ CONTACT ============ */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:56px;}
.contact-block h3{font-size:19px; margin-bottom:14px;}
.contact-block p{font-size:15px; color:rgba(29,33,28,0.78);}
.contact-list{list-style:none; margin:0; padding:0;}
.contact-list li{padding:10px 0; border-bottom:1px solid var(--line); display:flex; justify-content:space-between; font-size:14.5px;}
.contact-list li a{color:var(--moss); text-decoration:none;}
.contact-list li a:hover{color:var(--rust);}
@media (max-width:700px){ .contact-grid{grid-template-columns:1fr; gap:36px;} }