:root{
  --bg: #fbfbfa;
  --fg: #111312;
  --muted: #5b6460;
  --line: #dde3df;
  --accent: #0b5d4a;
  --accent-2: #0a2a4a;
  --surface: #ffffff;
  --max: 980px;
  --radius: 14px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #0e1110;
    --fg: #f1f4f2;
    --muted: #a2aba6;
    --line: #27312d;
    --accent: #6dd3b2;
    --accent-2: #8db8ff;
    --surface: #111615;
  }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background:
    radial-gradient(1200px 600px at 15% -10%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
    radial-gradient(900px 540px at 95% 0%, color-mix(in srgb, var(--accent-2) 10%, transparent), transparent 58%),
    var(--bg);
  color: var(--fg);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  letter-spacing: 0.1px;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

.muted{ color: var(--muted); }
.tiny{ font-size: 14px; }

:focus-visible{
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, var(--fg));
  outline-offset: 2px;
}

.lead{ font-size: 17px; line-height: 1.6; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .hero-img{ transition: none; }
}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 18px;
}

.site-header{
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav-row{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 650;
}
.brand:hover{ text-decoration: none; }
.brand-mark-wrap{
  display: block;
  flex: 0 0 auto;
}
.brand-mark{
  width: 34px;
  height: 20px;
  display: block;
  opacity: 0.9;
}
.brand-text{ white-space: nowrap; }

.nav{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.nav-link{
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
}
.nav-link:hover{
  text-decoration: none;
  border-color: var(--line);
}

.hero{
  padding-top: 34px;
  padding-bottom: 10px;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: start;
}
@media (min-width: 920px){
  .hero-grid{
    grid-template-columns: 1.05fr 0.95fr;
    gap: 22px;
    align-items: center;
  }
}
.hero-copy{ padding-top: 6px; }
.hero h1{
  margin: 0 0 10px 0;
  font-size: clamp(30px, 4.4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.3px;
}
.hero-title-main{
  display: block;
  font-size: clamp(34px, 4.8vw, 52px);
  line-height: 1.02;
  letter-spacing: -0.45px;
}
.hero-title-track{
  display: block;
  margin-top: 8px;
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.22;
  font-weight: 620;
  color: color-mix(in srgb, var(--fg) 88%, var(--accent));
}
.hero-note{ margin-top: 10px; }
.hero-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
}
.pill{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.pill strong{ color: var(--fg); font-weight: 650; }

.home-pill-row{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 0 4px;
}
.home-pill-link{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: #1f2422;
  font-weight: 650;
  letter-spacing: 0.1px;
  text-decoration: none;
  box-shadow:
    0 8px 18px rgba(0,0,0,0.05),
    0 1px 0 rgba(255,255,255,0.35) inset;
}
.home-pill-link:hover{
  text-decoration: none;
  filter: saturate(1.04);
}
.home-pill-link.is-cfp{
  border-color: #d7b67a;
  background: linear-gradient(135deg, #f3e6b8, #ebcda8);
}
.home-pill-link.is-registration{
  border-color: #8cb8ca;
  background: linear-gradient(135deg, #d3ece8, #cad9f0);
}

.actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 70%, var(--bg));
  text-decoration: none;
  font-weight: 600;
}
.btn-schedule{
  min-width: 206px;
  white-space: nowrap;
}
.btn:hover{ text-decoration: none; border-color: color-mix(in srgb, var(--line) 60%, var(--fg)); }
.btn.primary{
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, var(--surface)), color-mix(in srgb, var(--accent-2) 14%, var(--surface)));
}
.btn.workshop-btn{
  border-color: color-mix(in srgb, var(--accent-2) 46%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-2) 18%, var(--surface)), color-mix(in srgb, #9fd1ee 28%, var(--surface)));
}

.hero-media{
  position: relative;
  aspect-ratio: 12 / 8;
  border-radius: calc(var(--radius) + 10px);
  overflow: hidden;
  border: 1px solid var(--line);
  background: radial-gradient(1200px 600px at 20% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
              radial-gradient(900px 540px at 90% 30%, color-mix(in srgb, var(--accent-2) 12%, transparent), transparent 60%),
              color-mix(in srgb, var(--surface) 65%, var(--bg));
  box-shadow:
    0 18px 50px rgba(0,0,0,0.06),
    0 1px 0 rgba(0,0,0,0.04);
}
@media (prefers-color-scheme: dark){
  .hero-media{
    box-shadow:
      0 18px 60px rgba(0,0,0,0.35),
      0 1px 0 rgba(255,255,255,0.03);
  }
}
.hero-img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 700ms ease;
}
.hero-img.is-visible{ opacity: 1; }

.speaker-card{
  display: grid;
  gap: 16px;
  justify-items: start;
  padding-top: 6px;
}
.speaker-line{
  display: grid;
  gap: 8px;
  width: 100%;
}
.speaker-line + .speaker-line{
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.speaker-line-title{
  margin: 2px 0 0 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.2px;
  text-transform: uppercase;
  color: var(--muted);
}
.speaker-line-title.is-summer{
  color: color-mix(in srgb, var(--accent) 82%, var(--fg));
}
.speaker-line-title.is-workshop{
  color: color-mix(in srgb, var(--accent-2) 82%, var(--fg));
}
.speaker-carousel-list{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  overflow: visible;
  padding-bottom: 0;
}
@media (min-width: 720px){
  .speaker-carousel-list{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (min-width: 980px){
  .speaker-carousel-list{
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
.speaker-tile{
  display: grid;
  gap: 8px;
  align-content: start;
}
.speaker-photo-link{
  display: block;
}
.speaker-photo-link:hover{
  text-decoration: none;
}
.speaker-tile-photo{
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 75%, var(--bg));
}
.speaker-tile-photo img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.speaker-tile-name{
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
}
.speaker-tile-affiliation{
  margin: 0;
  font-size: 13px;
  line-height: 1.35;
  color: var(--muted);
  text-align: center;
}

.location-layout{
  display: grid;
  gap: 12px;
}
@media (min-width: 920px){
  .location-layout{
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }
}
.location-map-shell{
  position: relative;
}
.venue-map{
  width: 100%;
  min-height: 360px;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid var(--line);
}
.location-panel{
  height: 100%;
  display: grid;
  align-content: start;
  gap: 12px;
  padding-top: 4px;
}
.location-list{
  display: grid;
  gap: 0;
}
.location-item{
  padding: 14px 0;
  border-top: 1px solid var(--line);
  background: transparent;
}
.location-item:first-child{
  padding-top: 0;
  border-top: 0;
}
.location-label{
  margin: 0 0 4px 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.2px;
}
.location-dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}
.location-dot.is-summer{ background: var(--accent); }
.location-dot.is-workshop{ background: var(--accent-2); }
.location-name{
  margin: 0;
  font-weight: 650;
}
.location-meta{
  margin: 2px 0 0 0;
  color: var(--muted);
  font-size: 14px;
}
.location-map-note{
  margin: 0;
  padding-top: 2px;
}

.map-dot{
  width: 14px;
  height: 14px;
  display: block;
  border-radius: 999px;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 2px rgba(0,0,0,0.12);
}
.map-dot.is-summer{ background: var(--accent); }
.map-dot.is-workshop{ background: var(--accent-2); }
.leaflet-tooltip.map-tooltip{
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--fg) 90%, var(--bg));
  color: var(--bg);
  box-shadow: 0 8px 18px rgba(0,0,0,0.18);
  font-weight: 600;
  padding: 5px 9px;
}
.leaflet-tooltip-top.map-tooltip:before{
  border-top-color: color-mix(in srgb, var(--fg) 90%, var(--bg));
}

section{
  padding-top: 26px;
  padding-bottom: 16px;
  scroll-margin-top: 80px;
}
section + section{
  border-top: 1px solid var(--line);
}
section h2{
  margin: 0 0 10px 0;
  font-size: 20px;
  letter-spacing: -0.1px;
}
section p{ margin: 0 0 10px 0; }

.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 16px;
  background: color-mix(in srgb, var(--surface) 72%, var(--bg));
  box-shadow:
    0 10px 28px rgba(0,0,0,0.05),
    0 1px 0 rgba(0,0,0,0.03);
}

.about-copy{
  display: grid;
  gap: 16px;
  max-width: 920px;
  padding-top: 2px;
}
.about-copy p{
  margin: 0;
  font-size: 17px;
  line-height: 1.72;
}
@media (min-width: 860px){
  .about-copy{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

.academic-page{
  max-width: 760px;
}
.academic-page-compact{
  max-width: 680px;
}
.academic-page p,
.academic-page li{
  color: color-mix(in srgb, var(--fg) 92%, var(--muted));
}
.academic-page .muted{
  color: var(--muted);
}
.academic-page a{
  color: color-mix(in srgb, var(--accent) 82%, var(--fg));
}
.academic-kicker{
  margin: 0 0 10px 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.academic-meta{
  margin: 18px 0 18px;
}
.academic-meta div{
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.academic-meta div:last-child{
  border-bottom: 1px solid var(--line);
}
.academic-meta dt{
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.academic-meta dd{
  margin: 0;
}
.academic-links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
  font-weight: 600;
}
.academic-links span{
  color: var(--muted);
}
.academic-note{
  margin-top: 12px;
  padding-left: 14px;
  border-left: 2px solid color-mix(in srgb, var(--accent) 36%, var(--line));
  color: var(--muted);
}
@media (max-width: 680px){
  .academic-meta div{
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

.grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 860px){
  .grid.two{ grid-template-columns: 1fr 1fr; }
}

.people-grid{
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 12px;
}
@media (min-width: 720px){
  .people-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 980px){
  .people-grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.person-card{
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 72%, var(--bg));
  box-shadow:
    0 10px 28px rgba(0,0,0,0.05),
    0 1px 0 rgba(0,0,0,0.03);
}
a.person-card:hover{
  text-decoration: none;
  border-color: color-mix(in srgb, var(--line) 60%, var(--fg));
}
.avatar{
  width: clamp(130px, 15vw, 180px);
  height: clamp(130px, 15vw, 180px);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  flex: 0 0 auto;
  background: radial-gradient(800px 400px at 20% 0%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
              radial-gradient(700px 400px at 90% 30%, color-mix(in srgb, var(--accent-2) 10%, transparent), transparent 60%),
              color-mix(in srgb, var(--surface) 65%, var(--bg));
}
.avatar img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.avatar a{
  display: block;
}
.person-body{
  min-width: 0;
  width: 100%;
}
.person-name{
  font-weight: 650;
  line-height: 1.2;
}
.person-meta{
  color: var(--muted);
  font-size: 14px;
  margin-top: 2px;
}
.person-credit{ margin-top: 6px; }

.organizers-box{
  margin-top: 12px;
  padding-top: 4px;
}
.organizers-box .people-grid{
  margin-top: 0;
}
.organizers-box .person-card{
  border: 0;
  box-shadow: none;
  background: transparent;
  padding: 6px;
}

.subtabs{
  display: inline-flex;
  gap: 8px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 70%, var(--bg));
}
.subtab{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
}
.subtab:hover{
  text-decoration: none;
  border-color: var(--line);
}
.subtab.is-active{
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 14%, var(--surface)), color-mix(in srgb, var(--accent-2) 10%, var(--surface)));
}

.schedule-day{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: color-mix(in srgb, var(--surface) 72%, var(--bg));
  box-shadow:
    0 10px 28px rgba(0,0,0,0.05),
    0 1px 0 rgba(0,0,0,0.03);
}
.schedule-head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 80%, var(--surface));
}
.schedule-head .track{ color: var(--muted); font-size: 14px; }
.schedule-table{
  width: 100%;
  border-collapse: collapse;
}
.schedule-table td{
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  vertical-align: top;
}
.schedule-table td.time{
  width: 140px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.site-footer{
  border-top: 1px solid var(--line);
  margin-top: 24px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 720px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}
.footer-title{ font-weight: 650; }

/* Make markdown lists look clean */
ul{ padding-left: 1.1rem; margin: 0.4rem 0; }
li{ margin: 0.2rem 0; }