:root {
  --bg: #f7f0e5;
  --panel: #fffaf2;
  --panel-2: #fbf4e8;
  --ink: #263845;
  --muted: #60717d;
  --line: #e3d6c4;
  --gold: #d9a300;
  --gold-soft: #f3d36a;
  --blue: #2f4b5b;
  --blue-2: #1d3442;
  --shadow: 0 18px 50px rgba(38,56,69,.13);
  --radius: 18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at top left, #fff9ec 0, var(--bg) 42%, #f3eadc 100%); color: var(--ink); }
a { color: var(--blue-2); }
button, input, select { font: inherit; }
.site-header { display: flex; justify-content: space-between; gap: 1.5rem; align-items: center; padding: 2rem min(5vw, 4rem); background: linear-gradient(135deg, rgba(255,250,242,.95), rgba(247,240,229,.72)); border-bottom: 1px solid var(--line); position: relative; }
.site-logo img { max-height: 72px; display: block; }
.site-header::after { content: ""; position: absolute; left: min(5vw, 4rem); right: min(5vw, 4rem); bottom: -2px; height: 4px; background: var(--gold-soft); border-radius: 99px; }
.site-header.compact { padding-block: 1.25rem; }
.brand { font-weight: 900; letter-spacing: -.04em; font-size: clamp(2rem, 5vw, 4.4rem); line-height: .85; }
.brand small { font-size: .35em; letter-spacing: .02em; background: var(--ink); color: #fff; border-radius: 999px; padding: .18em .35em; vertical-align: middle; }
.gold { color: var(--gold); }
.tagline { margin: .75rem 0 0; color: var(--muted); font-size: 1.05rem; }
.header-note { background: var(--blue); color: white; padding: 1rem 1.2rem; border-radius: 14px; max-width: 350px; line-height: 1.35; box-shadow: var(--shadow); }
main { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.hero { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: stretch; padding: 2.2rem 0 1rem; }
.hero h1 { margin: 0 0 .5rem; font-size: clamp(2rem, 4vw, 3.8rem); letter-spacing: -.04em; }
.hero p { max-width: 820px; color: var(--muted); font-size: 1.12rem; line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.button-link { display: inline-flex; align-items: center; justify-content: center; min-height: 2.45rem; border-radius: 999px; background: var(--blue); color: white; padding: .65rem 1rem; text-decoration: none; font-weight: 800; }
.button-link:hover { background: var(--blue-2); }
.hero-stats { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: .8rem; align-content: center; min-width: 290px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 1rem; box-shadow: 0 8px 28px rgba(38,56,69,.08); }
.stat strong { display: block; font-size: 1.7rem; }
.stat span { color: var(--muted); font-size: .9rem; }
.release-panel { margin: 1rem 0 1.5rem; border: 1px solid var(--line); background: rgba(255,250,242,.75); border-left: 6px solid var(--gold); border-radius: 15px; padding: 1rem 1.2rem; color: var(--muted); }
.release-panel strong { color: var(--ink); }
.filters { background: rgba(255,250,242,.92); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); position: sticky; top: 0; z-index: 4; backdrop-filter: blur(10px); }
.filter-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .85rem; margin-bottom: .85rem; }
.filter-row.primary { grid-template-columns: 2fr 1fr; }
.filters label { display: grid; gap: .35rem; font-size: .82rem; font-weight: 700; color: var(--blue-2); text-transform: uppercase; letter-spacing: .04em; }
.filters input, .filters select { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: .72rem .82rem; background: white; color: var(--ink); outline: none; }
.filters input:focus, .filters select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(217,163,0,.18); }
.filter-actions { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.filter-actions .check { display: inline-flex; grid-auto-flow: column; align-items: center; gap: .45rem; text-transform: none; letter-spacing: 0; color: var(--ink); font-size: .95rem; }
.filter-actions input { width: auto; }
button { border: 0; border-radius: 999px; background: var(--blue); color: white; padding: .65rem 1rem; cursor: pointer; font-weight: 700; }
button:hover { background: var(--blue-2); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin: 2.4rem 0 1rem; }
.section-head h2 { margin: 0; font-size: clamp(1.6rem, 2.6vw, 2.3rem); }
.section-head p { margin: .25rem 0 0; color: var(--muted); }
.view-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.schedule-grid { display: grid; gap: 1rem; }
.schedule-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.schedule-card h3 { margin: 0 0 .9rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.room-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: .9rem; }
.room-card { border: 1px solid var(--line); background: white; border-radius: 14px; padding: .9rem; }
.room-title { display: flex; justify-content: space-between; gap: .75rem; font-weight: 800; color: var(--blue-2); border-bottom: 1px solid var(--line); padding-bottom: .55rem; margin-bottom: .55rem; }
.chair { color: var(--muted); font-size: .88rem; margin: .25rem 0 .6rem; }
.talk-chip { display: block; width: 100%; text-align: left; background: var(--panel-2); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; padding: .55rem .65rem; margin: .4rem 0; line-height: 1.35; }
.talk-chip:hover { background: #fff3cf; }
.talk-chip .num { font-weight: 900; color: var(--blue-2); }
.talk-chip .title { font-size: .92rem; }
.talk-chip.talk-cancelled {
  background: #ffe0d8;
  border-color: #d5452f;
  border-width: 2px;
}
.talk-chip.talk-cancelled:hover { background: #ffd3c8; }
.talk-chip.talk-cancelled .num,
.talk-chip.talk-cancelled .title { color: #8b1f14; }
.schedule-cancelled {
  display: inline-flex;
  margin: 0 .35rem .2rem 0;
  border: 1px solid #d5452f;
  border-radius: 999px;
  padding: .12rem .45rem;
  color: #8b1f14;
  font-size: .78rem;
  font-weight: 900;
  text-transform: uppercase;
  vertical-align: middle;
}
.talk-author { display: block; margin-top: .35rem; color: var(--muted); font-size: .88rem; line-height: 1.35; }
.programme-item { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: .75rem .8rem; line-height: 1.45; }
.programme-item h4 { margin: 0 0 .35rem; color: var(--blue-2); font-size: .98rem; }
.programme-item p { margin: 0; color: var(--muted); font-size: .92rem; }
.abstract-list { display: grid; gap: 1rem; margin-bottom: 3rem; }
.abstract-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 35px rgba(38,56,69,.08); overflow: hidden; }
.abstract-card[hidden] { display: none; }
.card-top { padding: 1.1rem 1.2rem; display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start; }
.num-badge { background: var(--blue); color: white; font-weight: 900; border-radius: 14px; padding: .7rem .8rem; min-width: 62px; text-align: center; }
.card-title { margin: 0; font-size: 1.25rem; line-height: 1.25; }
.authors { color: var(--muted); margin: .4rem 0 .75rem; line-height: 1.45; }
.meta-pills { display: flex; flex-wrap: wrap; gap: .45rem; }
.pill { display: inline-flex; align-items: center; gap: .3rem; border: 1px solid var(--line); background: white; border-radius: 999px; padding: .32rem .6rem; color: var(--blue-2); font-size: .85rem; font-weight: 700; }
.pill.status-paper { background: #eef8f3; }
.pill.status-poster { background: #fff4d6; }
.pill.status-presentation { background: #f4f8fb; }
.pill.status-cancelled {
  background: #ffe0d8;
  border-color: #d5452f;
  color: #8b1f14;
  font-size: 1rem;
  font-weight: 900;
  padding: .5rem .85rem;
  text-transform: uppercase;
}
.card-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .85rem; }
.card-actions a, .media-link, .disabled-media { display: inline-flex; align-items: center; justify-content: center; min-height: 2.2rem; border-radius: 999px; padding: .45rem .75rem; text-decoration: none; font-weight: 800; font-size: .9rem; }
.card-actions a, .media-link.active { background: var(--blue); color: white; }
.media-link.pending, .media-link.missing { background: #ebe0cf; color: #786d5d; cursor: not-allowed; }
.media-link.missing::after { content: " (upload needed)"; font-weight: 700; }
.abstract-content { padding: 0 1.6rem 1.6rem 1.6rem; line-height: 1.75; }
.abstract-content h4 { margin: 1rem 0 .6rem; font-size: 1rem; letter-spacing: .02em; text-transform: uppercase; color: var(--blue-2); }
.status-line { margin: .2rem 0 1rem; font-weight: 700; color: var(--blue-2); }
.affiliations { margin: .75rem 0 0; color: var(--muted); font-size: .95rem; line-height: 1.4; }
.keywords { color: var(--muted); margin-top: 1rem; }
.no-results { background: var(--panel); border: 1px dashed var(--line); padding: 2rem; border-radius: var(--radius); text-align: center; color: var(--muted); }
footer { border-top: 1px solid var(--line); margin-top: 2rem; padding: 2rem min(5vw, 4rem); color: var(--muted); background: rgba(255,250,242,.72); }
code { background: rgba(47,75,91,.09); padding: .12rem .35rem; border-radius: .35rem; }
.back-link { color: var(--blue-2); font-weight: 900; text-decoration: none; }
.detail-wrap { max-width: 920px; }
.abstract-detail { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin: 2rem 0 3rem; padding: clamp(1.2rem, 3vw, 2.2rem); box-shadow: var(--shadow); }
.abstract-detail h1 { margin-top: .35rem; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -.04em; }
.eyebrow { color: var(--gold); font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.affiliations p { margin: .25rem 0; color: var(--muted); }
.metadata { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; background: white; border: 1px solid var(--line); border-radius: 14px; padding: 1rem; margin: 1.2rem 0; }
.metadata dt { font-weight: 900; color: var(--blue-2); }
.metadata dd { margin: 0; color: var(--muted); }
.metadata dd.status-cancelled {
  justify-self: start;
  background: #ffe0d8;
  border: 1px solid #d5452f;
  border-radius: 999px;
  color: #8b1f14;
  font-size: 1.05rem;
  font-weight: 900;
  padding: .35rem .75rem;
  text-transform: uppercase;
}
.detail-media { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0; }
.chair-page main { width: min(920px, calc(100% - 2rem)); }
.chair-instructions { line-height: 1.7; }
.chair-instructions .lead { color: var(--blue-2); font-size: 1.15rem; font-weight: 800; }
.chair-instructions h2 { margin: 2rem 0 .7rem; color: var(--blue-2); font-size: 1.35rem; }
.chair-instructions ul { padding-left: 1.25rem; }
.chair-instructions li { margin: .35rem 0; }
.chair-instructions blockquote { margin: 1rem 0; border-left: 5px solid var(--gold-soft); background: white; border-radius: 0 12px 12px 0; padding: .9rem 1rem; color: var(--blue-2); font-weight: 700; }
.timing-card { display: grid; gap: .45rem; margin: 1.4rem 0; padding: 1rem; border: 1px solid var(--line); border-left: 6px solid var(--gold); border-radius: 14px; background: white; }
.timing-card p { margin: 0; color: var(--blue-2); font-weight: 800; }
.chair-actions { display: flex; margin: 1rem 0 1.5rem; }
.table-wrap { overflow-x: auto; margin: .8rem 0 1rem; }
.chair-instructions table { width: 100%; border-collapse: collapse; background: white; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.chair-instructions th, .chair-instructions td { padding: .75rem .85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.chair-instructions th { background: var(--panel-2); color: var(--blue-2); }
.chair-instructions tr:last-child td { border-bottom: 0; }
@media (max-width: 820px) {
  .site-header, .hero, .section-head { display: block; }
  .header-note { margin-top: 1rem; max-width: none; }
  .filter-row, .filter-row.primary { grid-template-columns: 1fr; }
  .filters { position: static; }
  .hero-actions { margin-bottom: 1.25rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); min-width: 0; margin-top: 1.4rem; }
  .card-top { grid-template-columns: 1fr; }
  .metadata { grid-template-columns: 1fr; }
}
@media print {
  body { background: white; color: #000; }
  .site-header, .chair-actions { display: none; }
  main, .chair-page main { width: auto; margin: 0; }
  .abstract-detail { box-shadow: none; border: 0; margin: 0; padding: 0; }
  .chair-instructions h1 { font-size: 28pt; }
  .chair-instructions h2 { break-after: avoid; page-break-after: avoid; }
  .timing-card, .chair-instructions table, .chair-instructions blockquote { break-inside: avoid; page-break-inside: avoid; }
}