/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root{
  --ink:#0F2A36;
  --ink-soft:#1C3E4C;
  --paper:#F5F7F6;
  --surface:#FFFFFF;
  --teal:#2F6F6E;
  --teal-deep:#20504F;
  --gold:#B9862F;
  --text:#24322F;
  --text-soft:#526059;
  --line:#DCE3DE;
  --line-strong:#C3CDC6;
  --radius:14px;
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --maxw:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--teal-deep)}
h1,h2,h3,h4{font-family:var(--serif); color:var(--ink); margin:0 0 .5em; line-height:1.15; font-weight:600;}
p{margin:0 0 1em}
.container{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
.eyebrow{
  font-family:var(--mono); text-transform:uppercase; letter-spacing:.12em;
  font-size:12.5px; color:var(--teal-deep); font-weight:500; display:inline-flex; align-items:center; gap:8px;
}
.eyebrow::before{content:""; width:18px; height:1px; background:var(--gold); display:inline-block;}
section{padding:88px 0;}
@media (max-width:720px){ section{padding:56px 0;} }
.section-head{max-width:680px; margin-bottom:44px;}
.btn{
  display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:999px;
  font-family:var(--sans); font-weight:600; font-size:15px; text-decoration:none; cursor:pointer;
  border:1px solid transparent; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:3px solid var(--gold); outline-offset:2px;
}
.btn-primary{background:var(--teal); color:#fff;}
.btn-primary:hover{background:var(--teal-deep); transform:translateY(-1px);}
.btn-ghost{background:transparent; color:var(--ink); border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--ink); transform:translateY(-1px);}

/* ---------------- Header / Nav ---------------- */
header.site{
  position:sticky; top:0; z-index:50; background:rgba(245,247,246,.9); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex; align-items:center; justify-content:space-between; padding:14px 24px; max-width:var(--maxw); margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:50%;
  background:var(--ink); color:#F5F7F6; display:flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-weight:700; font-size:15px;
  background-image:repeating-linear-gradient(135deg, var(--teal) 0 2px, var(--ink) 2px 9px);
}
.brand-name{
    font-family:"Bad Script", cursive;
    font-weight:900;
    font-size:22px;
    color:var(--ink);
}
nav.links{display:flex; gap:26px; list-style:none; margin:0; padding:0;}
nav.links a{color:var(--text); text-decoration:none; font-size:14.5px; font-weight:500;}
nav.links a:hover{color:var(--teal-deep)}
#nav-toggle{display:none;}
.burger{display:none; background:none; border:none; cursor:pointer; padding:6px;}
.burger span{display:block; width:22px; height:2px; background:var(--ink); margin:5px 0;}
@media (max-width:860px){
  nav.links{
    position:absolute; top:100%; left:0; right:0; background:var(--surface); flex-direction:column;
    padding:16px 24px; border-bottom:1px solid var(--line); gap:16px;
    display:none;
  }
  #nav-toggle:checked ~ nav.links{display:flex;}
  .burger{display:block;}
}

/* ---------------- Hero ---------------- */
.hero{padding:64px 0 80px;}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center;}
@media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }
.hero h1{font-size:clamp(34px,5vw,54px); margin-bottom:.25em;}
.hero .creds{font-family:var(--mono); font-size:14px; color:var(--text-soft); margin-bottom:20px; letter-spacing:.02em;}
.hero p.lede{font-size:18px; color:var(--text-soft); max-width:560px;}
.hero-ctas{display:flex; gap:14px; margin-top:28px; flex-wrap:wrap;}
.stat-strip{display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:48px; border-top:1px solid var(--line);}
.stat{padding:20px 18px 0; border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat b{display:block; font-family:var(--serif); font-size:28px; color:var(--ink);}
.stat span{font-size:12.5px; color:var(--text-soft); font-family:var(--mono); text-transform:uppercase; letter-spacing:.04em;}
@media (max-width:620px){
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:none; border-bottom:1px solid var(--line); padding-bottom:16px; margin-bottom:4px;}
}
.portrait-wrap{position:relative;}
.portrait-frame{
  aspect-ratio:4/5; border-radius:var(--radius); overflow:hidden; background:var(--ink);
  border:1px solid var(--line-strong); position:relative;
}
.portrait-frame img{width:100%; height:100%; object-fit:cover;}
.portrait-fallback{
  width:100%; height:100%; display:flex; align-items:center; justify-content:center; color:#9FB8B4;
  font-family:var(--serif); font-size:15px; text-align:center; padding:24px;
  background:radial-gradient(circle at 30% 20%, #16404A, #0F2A36 70%);
}
.portrait-caption{margin-top:12px; font-size:13px; color:var(--text-soft); text-align:center;}

/* ---------------- About ---------------- */
.about-grid{display:grid; grid-template-columns:1.4fr 1fr; gap:48px;}
@media (max-width:860px){ .about-grid{grid-template-columns:1fr;} }
.fact-list{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:24px;}
.fact-list dt{font-family:var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-soft); margin-top:16px;}
.fact-list dt:first-child{margin-top:0;}
.fact-list dd{margin:2px 0 0; font-size:15px; color:var(--ink); font-weight:500;}

/* ---------------- Suture timeline ---------------- */
.timeline{position:relative; margin-left:6px; padding-left:36px;
  background-image:repeating-linear-gradient(
      to bottom, var(--line-strong) 0 2px, transparent 2px 6px
    ), repeating-linear-gradient(
      115deg, transparent 0 10px, var(--gold) 10px 12px, transparent 12px 22px
    );
  background-repeat:no-repeat, repeat-y;
  background-position:0 0, 0 0;
  background-size:2px 100%, 2px 100%;
}
.tl-item{position:relative; padding:0 0 40px 22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:""; position:absolute; left:-42px; top:2px; width:11px; height:11px; border-radius:50%;
  background:var(--teal); border:2px solid var(--paper); box-shadow:0 0 0 2px var(--teal);
}
.tl-date{font-family:var(--mono); font-size:13px; color:var(--teal-deep); font-weight:500;}
.tl-item h3{font-size:19px; margin:2px 0 4px;}
.tl-item p{color:var(--text-soft); font-size:15px; margin:0;}

/* ---------------- Cards / grids ---------------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:22px;}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:22px;}
@media (max-width:860px){ .grid-3{grid-template-columns:repeat(2,1fr);} }
@media (max-width:620px){ .grid-3, .grid-2{grid-template-columns:1fr;} }
.card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:26px;}
.card h3{font-size:18.5px; margin-bottom:8px;}
.card p{color:var(--text-soft); font-size:14.5px; margin:0;}
.card .ic{width:38px;height:38px;border-radius:9px;background:var(--paper); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; margin-bottom:14px; color:var(--teal-deep); font-family:var(--mono); font-weight:500;}

/* ---------------- Dark band (Research / Mission) ---------------- */
.band-dark{background:var(--ink); color:#DCE7E4;}
.band-dark h2, .band-dark h3{color:#fff;}
.band-dark .eyebrow{color:#8FD3C9;}
.band-dark .eyebrow::before{background:var(--gold);}
.band-dark p{color:#C4D3CE;}
.band-dark a{color:#8FD3C9;}
.pub-list{list-style:none; margin:0; padding:0; border-top:1px solid rgba(255,255,255,.12);}
.pub-list li{padding:18px 0; border-bottom:1px solid rgba(255,255,255,.12); font-size:14.5px; color:#D4E1DD;}
.pub-list li b{color:#fff; font-weight:600;}
.pub-list a{font-size:13px;}
.badge-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:8px;}
.badge{
  font-family:var(--mono); font-size:12.5px; padding:7px 14px; border-radius:999px;
  border:1px solid rgba(255,255,255,.22); color:#DCE7E4;
}
.mission-stats{display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin:28px 0 8px;}
@media (max-width:700px){ .mission-stats{grid-template-columns:1fr;} }
.mission-stat{border:1px solid rgba(255,255,255,.16); border-radius:var(--radius); padding:20px;}
.mission-stat b{display:block; font-family:var(--serif); font-size:30px; color:#fff;}
.mission-stat span{font-size:12.5px; font-family:var(--mono); color:#9FB8B4; text-transform:uppercase;}

/* ---------------- Books ---------------- */
.book-card{display:grid; grid-template-columns:120px 1fr; gap:20px; align-items:start;}
.book-cover{width:120px; aspect-ratio:3/4.4; border-radius:8px; background:linear-gradient(160deg,var(--teal),var(--ink)); display:flex; align-items:center; justify-content:center; color:#fff; font-family:var(--serif); font-size:13px; text-align:center; padding:10px; border:1px solid var(--line-strong);}
.book-cover img{width:100%; height:100%; object-fit:cover; border-radius:7px;}

/* ---------------- Awards ---------------- */
.award-list{list-style:none; margin:0; padding:0;}
.award-list li{display:flex; gap:14px; padding:14px 0; border-bottom:1px solid var(--line); font-size:15px;}
.award-list li:last-child{border-bottom:none;}
.award-list .yr{font-family:var(--mono); color:var(--gold); min-width:64px; font-size:13.5px; padding-top:2px;}

/* ---------------- Teaching / mentees ---------------- */
.mentee-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px 28px;}
@media (max-width:700px){ .mentee-grid{grid-template-columns:1fr;} }
.mentee{font-size:14.5px; border-left:2px solid var(--gold); padding-left:12px;}
.mentee b{color:var(--ink); display:block;}
.mentee span{color:var(--text-soft); font-size:13.5px;}

/* ---------------- FAQ ---------------- */
details.faq{border-bottom:1px solid var(--line); padding:18px 0;}
details.faq summary{cursor:pointer; font-family:var(--serif); font-size:18px; color:var(--ink); list-style:none; display:flex; justify-content:space-between; gap:16px;}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{content:"+"; font-family:var(--sans); color:var(--teal-deep); font-size:22px; flex:none;}
details.faq[open] summary::after{content:"–";}
details.faq p{margin-top:12px; color:var(--text-soft); font-size:15px;}

/* ---------------- Contact ---------------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px;}
@media (max-width:860px){ .contact-grid{grid-template-columns:1fr;} }
form.contact-form{display:flex; flex-direction:column; gap:14px;}
form.contact-form label{font-family:var(--mono); font-size:12.5px; text-transform:uppercase; letter-spacing:.04em; color:var(--text-soft);}
form.contact-form input, form.contact-form textarea{
  font-family:var(--sans); font-size:15px; padding:12px 14px; border-radius:9px; border:1px solid var(--line-strong);
  background:var(--surface); color:var(--text); width:100%;
}
form.contact-form textarea{min-height:130px; resize:vertical;}
.hp-field{position:absolute; left:-9999px; opacity:0;}
.form-msg{padding:12px 16px; border-radius:9px; font-size:14.5px; margin-bottom:6px;}
.form-msg.success{background:#E4F1EC; color:#1B5E4A; border:1px solid #BFDFD1;}
.form-msg.error{background:#FBEAEA; color:#8A2C2C; border:1px solid #F0C9C9;}

/* ---------------- Footer ---------------- */
footer.site{border-top:1px solid var(--line); padding:40px 0; background:var(--surface);}
.footer-grid{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:18px;}
.footer-grid nav{display:flex; gap:20px; flex-wrap:wrap;}
.footer-grid nav a{color:var(--text-soft); font-size:13.5px; text-decoration:none;}
.footer-fine{font-size:12.5px; color:var(--text-soft); font-family:var(--mono);}

.skip-link{position:absolute; left:-9999px; top:auto; background:var(--ink); color:#fff; padding:10px 16px; border-radius:8px; z-index:100;}
.skip-link:focus{left:16px; top:16px;}


.footer-grid p{
    font-size:15px;
    margin:0;
}