/* Bernhardt Lab — shared design system
   Cornell red/white palette. Linked by every page in the site concept. */

:root{
  --ink:#1a1a1a;
  --ink-soft:#5c5555;
  --paper:#ffffff;
  --paper-alt:#f7f3f3;
  --moss:#b31b1b;
  --moss-dark:#8c1414;
  --river:#8c1414;
  --clay:#b31b1b;
  --line: rgba(20,20,20,0.12);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.6;
}
a{color:inherit;}
img{max-width:100%;display:block;}

/* mockup label */
.mockup-flag{
  position:fixed;
  bottom:14px;
  right:14px;
  background:var(--ink);
  color:var(--paper);
  font-size:12px;
  padding:8px 12px;
  border-radius:20px;
  z-index:999;
  opacity:0.85;
  font-family:var(--sans);
}

/* utility bar */
.utility{
  background:var(--moss-dark);
  color:#f7e6e6;
  font-size:13px;
  text-align:center;
  padding:7px 16px;
}
.utility a{text-decoration:underline; text-underline-offset:2px;}

/* nav */
header.site{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  line-height:1.15;
  text-decoration:none;
}
.brand .mark{
  width:58px;
  height:58px;
  flex:none;
  display:block;
}
@media (max-width:880px){
  .brand .mark{width:46px; height:46px;}
}
.brand .text{
  display:flex;
  flex-direction:column;
}
.brand .name{
  font-family:var(--serif);
  font-size:22px;
  font-weight:600;
  letter-spacing:0.2px;
  color:var(--ink);
}
.brand .sub{
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-top:2px;
}
nav.primary ul{
  list-style:none;
  display:flex;
  gap:26px;
  margin:0;
  padding:0;
}
nav.primary a{
  text-decoration:none;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-soft);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:border-color .15s, color .15s;
}
nav.primary a:hover, nav.primary a.current{
  color:var(--moss-dark);
  border-color:var(--moss);
}
.nav-toggle{display:none;}

/* top photo band — narrow, full-bleed, rotating */
.photo-band{
  position:relative;
  width:100%;
  height:190px;
  overflow:hidden;
  background:var(--ink);
}
.pb-slide{
  position:absolute; inset:0;
  opacity:0;
  transition:opacity 1.1s ease;
}
.pb-slide.active{opacity:1;}
.pb-slide .pb-slot{
  width:100%; height:100%;
  border-radius:0;
  border-width:1px;
}

/* page header (subpages) */
.page-head{
  max-width:1120px;
  margin:0 auto;
  padding:48px 24px 8px;
}
.page-head .kicker{margin-bottom:8px;}
.page-head h1{
  font-family:var(--serif);
  font-size:38px;
  margin:0 0 14px;
  color:var(--ink);
}
.page-head .lede{
  font-size:16.5px;
  color:var(--ink-soft);
  max-width:70ch;
  margin:0;
}

/* hero (homepage) */
.hero{
  position:relative;
  max-width:1120px;
  margin:36px auto 0;
  padding:0 24px;
}
.hero-single{
  max-width:760px;
}
.hero h1{
  font-family:var(--serif);
  font-size:44px;
  line-height:1.12;
  margin:0 0 18px;
  color:var(--ink);
}
.hero h1 em{
  font-style:normal;
  color:var(--moss-dark);
  border-bottom:3px solid var(--clay);
}
.hero p.lede{
  font-size:17px;
  color:var(--ink-soft);
  max-width:46ch;
  margin:0 0 26px;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.btn{
  display:inline-block;
  padding:11px 20px;
  border-radius:6px;
  font-size:14.5px;
  font-weight:600;
  text-decoration:none;
  border:1px solid transparent;
}
.btn-primary{background:var(--moss-dark); color:#fff;}
.btn-primary:hover{background:var(--moss);}
.btn-ghost{border-color:var(--line); color:var(--ink);}
.btn-ghost:hover{border-color:var(--moss-dark);}

/* photo slots — placeholders for photos not yet sourced */
.photo-slot{
  width:100%; height:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:8px;
  text-align:center;
  padding:16px;
  background:
    repeating-linear-gradient(135deg, rgba(179,27,27,0.06) 0 10px, transparent 10px 20px),
    var(--paper-alt);
  border:2px dashed rgba(179,27,27,0.35);
  color:var(--ink-soft);
}
.photo-slot svg{width:26px; height:26px; opacity:0.55;}
.photo-slot .slot-label{
  font-size:12.5px; font-weight:600; color:var(--moss-dark);
}
.photo-slot .slot-spec{
  font-size:11px; color:var(--ink-soft); max-width:22ch; line-height:1.4;
}
.photo-slot.on-dark{
  border:2px dashed rgba(255,255,255,0.3);
  background:rgba(255,255,255,0.04);
  color:#ddc9c9;
}
.photo-slot.on-dark .slot-label{color:#fff;}
.photo-slot.on-dark .slot-spec{color:#ddc9c9;}

/* generic photo frame (real images, subpages) */
.photo-frame{
  width:100%;
  border-radius:10px;
  overflow:hidden;
  background:var(--paper-alt);
  border:1px solid var(--line);
}
.photo-frame img{width:100%; height:100%; object-fit:cover; display:block;}

/* pull quote */
.pull-quote{
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--moss);
  border-radius:8px;
  padding:28px 30px;
  margin:0 0 32px;
}
.pull-quote p{
  font-family:var(--serif);
  font-size:22px;
  line-height:1.4;
  color:var(--ink);
  margin:0 0 12px;
}
.pull-quote cite{
  font-style:normal;
  font-size:13px;
  color:var(--ink-soft);
}
.stat-line{
  font-size:15.5px;
  color:var(--ink-soft);
  max-width:70ch;
  margin:0 0 28px;
}
.stat-line strong{color:var(--ink);}

/* cornell banner */
.banner{
  max-width:1120px;
  margin:34px auto 0;
  padding:0 24px;
}
.banner-inner{
  background:var(--paper-alt);
  border:1px solid var(--line);
  border-left:4px solid var(--clay);
  border-radius:8px;
  padding:18px 22px;
  display:flex;
  gap:16px;
  align-items:flex-start;
  font-size:14.5px;
}
.banner-inner .tag{
  flex-shrink:0;
  background:var(--clay);
  color:#fff;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:4px 9px;
  border-radius:4px;
  margin-top:2px;
}
.banner-inner p{margin:0; color:var(--ink-soft);}
.banner-inner a{color:var(--moss-dark); font-weight:600; text-decoration:underline;}

/* section shell */
section{
  max-width:1120px;
  margin:0 auto;
  padding:64px 24px;
}
section.alt{
  max-width:none;
  background:var(--paper-alt);
}
section.alt .inner{max-width:1120px; margin:0 auto; padding:0 24px;}
section.tight{padding-top:0;}
.section-head{
  max-width:640px;
  margin-bottom:36px;
}
.kicker{
  font-size:12px;
  font-weight:700;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--river);
  margin:0 0 8px;
}
.section-head h2{
  font-family:var(--serif);
  font-size:30px;
  margin:0 0 10px;
}
.section-head p{color:var(--ink-soft); margin:0; font-size:15.5px;}

/* two-question cards (homepage) */
.questions{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.q-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:26px;
}
.q-card .num{
  font-family:var(--serif);
  font-size:32px;
  color:var(--moss);
  margin:0 0 10px;
}
.q-card p{margin:0; font-size:15.5px; color:var(--ink);}

/* research themes (verbatim from research statement) */
.theme-list{
  display:flex;
  flex-direction:column;
}
.theme-row{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:22px;
  padding:30px 0;
  border-top:1px solid var(--line);
}
.theme-row:last-child{border-bottom:1px solid var(--line);}
.theme-num{
  font-family:var(--serif);
  font-size:28px;
  color:var(--moss);
}
.theme-row h3{
  font-family:var(--serif);
  font-size:19px;
  margin:0 0 10px;
  color:var(--ink);
}
.theme-row p{
  font-size:15px;
  color:var(--ink-soft);
  margin:0 0 12px;
  max-width:74ch;
}
.theme-row p:last-child{margin-bottom:0;}
.theme-row .cites{
  font-size:13px;
  color:var(--ink-soft);
  margin-top:14px;
}
.theme-row .cites summary{cursor:pointer; color:var(--moss-dark); font-weight:600;}
.theme-row .cites ul{margin:10px 0 0; padding-left:18px;}
.theme-row .cites li{margin-bottom:6px;}

/* slideshow */
.slideshow{
  position:relative;
  width:100%;
  aspect-ratio:21/8;
  border-radius:12px;
  overflow:hidden;
  background:var(--ink);
}
.slide{
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  opacity:0;
  transition:opacity 1.1s ease;
}
.slide.active{opacity:1;}
.slide-cap{
  position:absolute; left:0; right:0; bottom:0;
  background:linear-gradient(to top, rgba(0,0,0,0.72), transparent 70%);
  color:#fff;
  font-size:14.5px;
  padding:46px 24px 18px;
}
.ss-arrow{
  position:absolute; top:50%; transform:translateY(-50%);
  width:38px; height:38px; border-radius:50%;
  background:rgba(255,255,255,0.85);
  border:none;
  color:var(--ink);
  font-size:19px;
  line-height:1;
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:background .15s;
}
.ss-arrow:hover{background:#fff;}
.ss-prev{left:14px;}
.ss-next{right:14px;}
.ss-dots{
  position:absolute; bottom:14px; left:50%; transform:translateX(-50%);
  display:flex; gap:7px;
}
.dot{
  width:7px; height:7px; border-radius:50%;
  background:rgba(255,255,255,0.5);
  border:none;
  cursor:pointer;
  padding:0;
}
.dot.active{background:#fff;}
.strip-cap{font-size:13px; color:var(--ink-soft); margin-top:14px; max-width:70ch;}

/* nav concept map (homepage only, transitional) */
.sitemap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:28px 30px;
}
.sitemap-cols{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.sitemap-cols h4{
  font-size:12px; text-transform:uppercase; letter-spacing:0.07em;
  color:var(--river); margin:0 0 10px;
}
.sitemap-cols ul{list-style:none; margin:0; padding:0;}
.sitemap-cols li{
  font-size:14.5px; padding:6px 0; border-bottom:1px dashed var(--line);
}
.sitemap-cols li.dropped{
  color:#a8a29a; text-decoration:line-through;
}
.sitemap-note{font-size:13.5px; color:var(--ink-soft); margin-top:20px;}

/* project rows (research page — current/past projects) */
.project-row{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:26px;
  padding:30px 0;
  border-top:1px solid var(--line);
  align-items:start;
}
.project-row:last-child{border-bottom:1px solid var(--line);}
.project-row .photo-frame{aspect-ratio:4/3;}
.project-row h3{font-family:var(--serif); font-size:19px; margin:0 0 6px; color:var(--ink);}
.project-row .funder{font-size:12px; font-weight:600; letter-spacing:0.05em; text-transform:uppercase; color:var(--moss-dark); margin:0 0 10px;}
.project-row p{font-size:15px; color:var(--ink-soft); margin:0 0 10px; max-width:74ch;}
.project-row p:last-child{margin-bottom:0;}
.past-project{padding:20px 0; border-top:1px solid var(--line);}
.past-project:last-child{border-bottom:1px solid var(--line);}
.past-project h4{font-family:var(--serif); font-size:16.5px; margin:0 0 6px; color:var(--ink);}
.past-project p{font-size:14.5px; color:var(--ink-soft); margin:0; max-width:76ch;}
@media (max-width:700px){
  .project-row{grid-template-columns:1fr;}
}

/* card grid (people, data & tools, news) */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
.card-grid.cols-2{grid-template-columns:repeat(2, 1fr);}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.card .card-body{padding:20px 22px 22px;}
.card h3{
  font-family:var(--serif);
  font-size:18px;
  margin:0 0 6px;
}
.card .role{
  font-size:12.5px;
  font-weight:600;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--moss-dark);
  margin:0 0 10px;
}
.card p{font-size:14.5px; color:var(--ink-soft); margin:0;}
.card .photo-frame{aspect-ratio:4/3;}

/* simple lists (publications, news) */
.entry-list{list-style:none; margin:0; padding:0;}
.entry-list li{
  padding:20px 0;
  border-top:1px solid var(--line);
}
.entry-list li:last-child{border-bottom:1px solid var(--line);}
.entry-list.with-thumbs li{
  display:flex;
  gap:18px;
  align-items:flex-start;
}
.entry-list .entry-thumb{width:120px; height:84px; flex:none;}
.entry-list .entry-thumb .photo-slot{padding:8px; gap:4px;}
.entry-list .entry-thumb .slot-label{font-size:10.5px;}
.entry-list .entry-thumb .slot-spec{display:none;}
.entry-list .entry-thumb svg{width:18px; height:18px;}
.entry-list .entry-text{flex:1; min-width:0;}
@media (max-width:600px){
  .entry-list.with-thumbs li{flex-direction:column;}
  .entry-list .entry-thumb{width:100%; height:110px;}
}
.entry-list .year-head{
  font-family:var(--serif);
  font-size:22px;
  color:var(--moss);
  margin:36px 0 6px;
}
.entry-list .year-head:first-child{margin-top:0;}
.entry-citation{font-size:15px; color:var(--ink); margin:0 0 4px; max-width:78ch;}
.entry-meta{font-size:13px; color:var(--ink-soft);}
.entry-meta a{color:var(--moss-dark); text-decoration:underline; font-weight:600;}

/* alumni / roster table-ish list */
.roster{
  columns:2;
  column-gap:40px;
}
.roster .rgroup{break-inside:avoid; margin-bottom:26px;}
.roster h4{
  font-size:13px; text-transform:uppercase; letter-spacing:0.06em;
  color:var(--river); margin:0 0 10px;
  border-bottom:1px solid var(--line); padding-bottom:6px;
}
.roster ul{list-style:none; margin:0; padding:0;}
.roster li{font-size:14.5px; padding:5px 0; color:var(--ink);}
.roster li .then-now{color:var(--ink-soft); font-size:13px;}
.roster li a{color:var(--moss-dark); text-decoration:underline; text-underline-offset:2px; font-weight:600;}
.roster li a:hover{color:var(--moss);}

/* pull-box (contract excerpts, letters) */
.pull-box{
  background:var(--paper-alt);
  border:1px solid var(--line);
  border-radius:10px;
  padding:26px 28px;
  margin:0 0 26px;
}
.pull-box h4{
  font-family:var(--serif); font-size:17px; margin:0 0 10px;
}
.pull-box ul{margin:10px 0 0; padding-left:20px;}
.pull-box li{margin-bottom:8px; font-size:15px; color:var(--ink-soft);}

/* bio page: photo header + top tile row */
.bio-head{display:flex; gap:28px; align-items:flex-start; flex-wrap:wrap; margin-top:18px;}
.bio-head .photo-frame{width:170px; flex:none; aspect-ratio:3/4;}
.bio-head .bio-text{flex:1; min-width:260px;}
.bio-head .bio-text h1{margin:0 0 8px;}
@media (max-width:600px){
  .bio-head .photo-frame{width:140px;}
}
.tile-row{display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:28px;}
.tile-row .pull-box{margin:0;}
@media (max-width:700px){.tile-row{grid-template-columns:1fr;}}

/* cv-style rows (professional preparation / appointments) */
.cv-table{margin-top:6px;}
.cv-row{
  display:grid; grid-template-columns:230px 1fr; gap:18px;
  padding:14px 0; border-top:1px solid var(--line); font-size:14.5px;
}
.cv-row:last-child{border-bottom:1px solid var(--line);}
.cv-row .cv-when{color:var(--moss-dark); font-weight:600;}
.cv-row .cv-what{color:var(--ink);}
@media (max-width:600px){.cv-row{grid-template-columns:1fr; gap:4px;}}

/* open letter */
.letter{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:34px 36px;
  font-size:16px;
  color:var(--ink);
  max-width:78ch;
}
.letter p{margin:0 0 16px;}
.letter .sign{font-family:var(--serif); font-size:18px; margin-top:24px;}

/* footer */
footer{
  background:var(--moss-dark);
  color:#f3dede;
  padding:44px 24px 28px;
}
.foot-inner{
  max-width:1120px; margin:0 auto;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:30px;
}
footer h5{
  font-size:12px; text-transform:uppercase; letter-spacing:0.08em;
  color:#e3a9a9; margin:0 0 12px;
}
footer p, footer a{font-size:14px; color:#f3dede;}
footer ul{list-style:none; margin:0; padding:0;}
footer li{margin-bottom:8px;}
footer a{text-decoration:none;}
footer a:hover{text-decoration:underline;}
.foot-bottom{
  max-width:1120px; margin:34px auto 0; padding-top:18px;
  border-top:1px solid rgba(255,255,255,0.15);
  font-size:12.5px; color:#e3a9a9;
}

@media (max-width: 880px){
  nav.primary ul{display:none;}
  .questions{grid-template-columns:1fr;}
  .theme-row{grid-template-columns:40px 1fr; gap:14px;}
  .sitemap-cols{grid-template-columns:1fr;}
  .foot-inner{grid-template-columns:1fr;}
  .photo-band{height:120px;}
  .slideshow{aspect-ratio:4/5;}
  .ss-arrow{width:32px; height:32px; font-size:16px;}
  .card-grid{grid-template-columns:1fr 1fr;}
  .roster{columns:1;}
}
@media (max-width: 600px){
  .card-grid{grid-template-columns:1fr;}
}