/* ===================================================================
   MODE-BD Lab — stylesheet
   Palette is drawn from the science itself: the three mood attractors
   of bipolar disorder (depressive / euthymic / manic) plus a neutral
   "paper & ink" ground for a serious, clinical-academic register.
=================================================================== */

:root{
  --paper:      #F6F4EF;
  --paper-dim:  #EFEBE2;
  --ink:        #1C2430;
  --ink-soft:   #4A5262;
  --line:       #D9D3C4;

  --depressive: #2E4E6E;   /* cool, low well */
  --euthymic:   #5C7A5E;   /* stable middle well */
  --manic:      #A85A2A;   /* hot, high well  */
  --gold:       #9C8347;   /* bifurcation / signature line */

  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1120px;
}

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }

a{ color:inherit; }

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 28px;
}

/* ---------- utility type ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-soft);
}

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  line-height:1.15;
  margin:0 0 .5em 0;
  letter-spacing:-.01em;
}

h1{ font-size:clamp(2.4rem, 5vw, 3.6rem); font-weight:500; }
h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); }
h3{ font-size:1.28rem; }

p{ margin:0 0 1em 0; }
.lede{
  font-size:1.18rem;
  color:var(--ink-soft);
  max-width:56ch;
}

.muted{ color:var(--ink-soft); }

.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--mono);
  font-size:13.5px;
  letter-spacing:.04em;
  text-decoration:none;
  color:var(--ink);
  border:1px solid var(--ink);
  padding:.75em 1.3em;
  border-radius:2px;
  transition:background .18s ease, color .18s ease;
}
.btn:hover{ background:var(--ink); color:var(--paper); }
.btn.primary{ background:var(--depressive); border-color:var(--depressive); color:var(--paper); }
.btn.primary:hover{ background:var(--ink); border-color:var(--ink); }

/* ---------- header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(246,244,239,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 28px;
  max-width:var(--maxw);
  margin:0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:.65em;
  text-decoration:none;
  color:var(--ink);
}
.brand-mark{ width:42px; height:42px; flex:none; }
.brand-text{
  font-family:var(--serif);
  font-size:1.9rem;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1;
}
.brand-sub{
  display:block;
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--ink-soft);
  text-transform:uppercase;
  margin-top:3px;
}
@media (max-width: 480px){
  .brand-text{ font-size:1.5rem; }
}

.nav-links{
  display:flex;
  gap:2.1em;
  list-style:none;
  margin:0; padding:0;
  font-family:var(--mono);
  font-size:13.5px;
  letter-spacing:.03em;
}
.nav-links a{
  text-decoration:none;
  padding:.3em 0;
  border-bottom:2px solid transparent;
  transition:border-color .15s ease, color .15s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{
  border-bottom-color:var(--manic);
}

.nav-toggle{
  display:none;
  background:none; border:1px solid var(--ink); border-radius:2px;
  width:38px; height:38px;
  align-items:center; justify-content:center;
  cursor:pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block; width:18px; height:2px; background:var(--ink);
  position:relative; transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

@media (max-width: 760px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:absolute; left:0; right:0; top:100%;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    gap:0;
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
  }
  .nav-links.open{ max-height:320px; }
  .nav-links li{ border-top:1px solid var(--line); }
  .nav-links a{ display:block; padding:1em 28px; border-bottom:none; }
  .nav-links a[aria-current="page"]{ background:var(--paper-dim); }
}

/* ---------- hero ---------- */
.hero{
  padding:76px 0 40px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}
@media (max-width: 880px){
  .hero{ grid-template-columns:1fr; padding-top:52px; }
}
.hero-figure{
  border:1px solid var(--line);
  background:#fff;
  border-radius:3px;
  padding:8px;
}
.hero-figure figcaption{
  font-family:var(--mono);
  font-size:11.5px;
  color:var(--ink-soft);
  padding:10px 6px 2px;
  letter-spacing:.02em;
}

.hero-tag{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--manic);
  margin-bottom:14px;
  display:block;
}

.hero-actions{
  display:flex; gap:12px; margin-top:28px; flex-wrap:wrap;
}

/* ---------- sections ---------- */
section{ padding:64px 0; }
.section-border-top{ border-top:1px solid var(--line); }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}

.callout{
  background:var(--paper-dim);
  border-left:3px solid var(--depressive);
  padding:22px 26px;
  border-radius:2px;
  font-size:.98rem;
}
.callout .stat{
  font-family:var(--mono);
  color:var(--depressive);
  font-weight:600;
}

/* ---------- WP cards ---------- */
.wp-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:26px;
}
@media (max-width: 880px){ .wp-grid{ grid-template-columns:1fr; } }

.wp-card{
  border:1px solid var(--line);
  background:#fff;
  border-radius:3px;
  padding:28px 26px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  position:relative;
}
.wp-card .wp-index{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  color:#fff;
  background:var(--ink);
  display:inline-flex;
  padding:3px 9px;
  border-radius:2px;
  width:fit-content;
}
.wp-card.wp1 .wp-index{ background:var(--depressive); }
.wp-card.wp2 .wp-index{ background:var(--euthymic); }
.wp-card.wp3 .wp-index{ background:var(--manic); }

.wp-card h3{ margin-top:2px; }
.wp-card p{ color:var(--ink-soft); font-size:.96rem; margin-bottom:0; }
.wp-card .wp-link{
  margin-top:auto;
  font-family:var(--mono);
  font-size:12.5px;
  text-decoration:none;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
  width:fit-content;
  padding-bottom:1px;
}

/* ---------- publications ---------- */
.pub-list{ list-style:none; margin:0; padding:0; }
.pub{
  padding:24px 0;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
}
.pub:last-child{ border-bottom:1px solid var(--line); }
.pub-year{
  font-family:var(--mono);
  font-size:1.05rem;
  color:var(--ink-soft);
  padding-top:2px;
}
.pub-citation{ font-size:.98rem; }
.pub-citation .journal{ font-style:italic; }
.pub-note{
  margin-top:8px;
  font-size:.9rem;
  color:var(--ink-soft);
  padding-left:14px;
  border-left:2px solid var(--line);
}
.pub-tags{ margin-top:10px; display:flex; gap:8px; flex-wrap:wrap; }
.tag{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-soft);
  border:1px solid var(--line);
  padding:3px 8px;
  border-radius:20px;
}

/* ---------- team / CV ---------- */
.cv-grid{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:44px;
}
@media (max-width: 760px){ .cv-grid{ grid-template-columns:1fr; } }

.cv-portrait{
  width:100%;
  aspect-ratio:4/5;
  border-radius:3px;
  border:1px solid var(--line);
  background:linear-gradient(155deg, var(--depressive) 0%, var(--ink) 46%, var(--manic) 100%);
  overflow:hidden;
}
.cv-portrait img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.cv-portrait span{
  display:flex;
  align-items:flex-end;
  height:100%;
  padding:16px;
  font-family:var(--mono);
  color:var(--paper);
  font-size:12px;
  letter-spacing:.06em;
}

.cv-fact-list{ list-style:none; padding:0; margin:18px 0 0; font-size:.92rem; }
.cv-fact-list li{ display:flex; gap:8px; padding:6px 0; border-top:1px solid var(--line); }
.cv-fact-list li span:first-child{
  font-family:var(--mono); color:var(--ink-soft); min-width:96px; font-size:.82rem; padding-top:2px;
}

.timeline{ list-style:none; margin:0; padding:0; }
.timeline li{
  display:grid;
  grid-template-columns:100px 1fr;
  gap:18px;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.timeline li:last-child{ padding-bottom:0; }
.timeline time{ font-family:var(--mono); font-size:.85rem; color:var(--ink-soft); }

/* ---------- contact ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
}
@media (max-width: 760px){ .contact-grid{ grid-template-columns:1fr; } }

.field{ margin-bottom:18px; }
.field label{
  display:block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-bottom:6px;
}
.field input, .field textarea{
  width:100%;
  font-family:var(--sans);
  font-size:15px;
  padding:11px 12px;
  border:1px solid var(--line);
  border-radius:2px;
  background:#fff;
  color:var(--ink);
}
.field textarea{ resize:vertical; min-height:120px; }
.field input:focus, .field textarea:focus{
  outline:2px solid var(--depressive);
  outline-offset:1px;
}

.addr-list{ list-style:none; padding:0; margin:0 0 28px; }
.addr-list li{ padding:12px 0; border-top:1px solid var(--line); font-size:.95rem; }
.addr-list li:last-child{ border-bottom:1px solid var(--line); }
.addr-list .label{
  font-family:var(--mono); font-size:11.5px; color:var(--ink-soft);
  text-transform:uppercase; letter-spacing:.06em; display:block; margin-bottom:3px;
}

/* ---------- affiliation logos ---------- */
.affil-strip{
  display:flex;
  align-items:center;
  gap:44px;
  flex-wrap:wrap;
  padding-top:6px;
}
.affil-logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--ink-soft);
}
.affil-logo svg, .affil-logo img{ width:auto; height:36px; max-width:120px; flex:none; object-fit:contain; }
.affil-logo .affil-text{
  font-family:var(--serif);
  font-size:.98rem;
  line-height:1.2;
  color:var(--ink);
}
.affil-logo .affil-text small{
  display:block;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-soft);
}

/* ---------- split panel (research page project rows) ---------- */
.split-panel{
  display:grid;
  gap:36px;
  align-items:center;
}
.split-panel.figure-left{ grid-template-columns:.85fr 1.15fr; }
.split-panel.figure-right{ grid-template-columns:1fr 1.3fr; }
@media (max-width: 760px){
  .split-panel.figure-left, .split-panel.figure-right{ grid-template-columns:1fr; }
}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:36px 0 44px;
  font-size:.86rem;
  color:var(--ink-soft);
}
.footer-row{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--manic);
  outline-offset:2px;
}