.program-page {
  --rule: color-mix(in srgb, var(--accent) 21%, var(--bg));
  --quiet: var(--text-muted);
  color: var(--text);
}
.program-page [hidden] { display: none; }
.program-page :is(a, button, input, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.program-mast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 32%);
  gap: clamp(24px, 4.8vw, 72px);
  align-items: center;
  padding-block: clamp(32px, 4vw, 54px) clamp(28px, 3.6vw, 48px);
  border-bottom: 1px solid var(--rule);
}
.program-mast .kicker { gap: 10px; margin-bottom: 13px; font-weight: 600; }
.program-mast .kicker span, .day-number span { color: var(--border-strong); }
.program-mast h1 {
  font: 550 clamp(48px, 5.4vw, 80px)/1.04 var(--font-serif);
  letter-spacing: -.045em;
  margin: 0 0 8px;
}
.program-dates { font-size: clamp(17px, 1.6vw, 22px); font-weight: 500; }
.program-status { font-size: 13px; line-height: 1.55; color: var(--text-secondary); margin-top: 17px; }
.program-status strong { color: var(--heading); font-weight: 650; }
.venue-print {
  position: relative;
  display: block;
  isolation: isolate;
  aspect-ratio: 2.22;
  overflow: hidden;
  background: #354475;
}
.venue-print img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 46%;
  filter: grayscale(1) contrast(.97); mix-blend-mode: luminosity; opacity: .94;
  transition: transform .4s ease;
}
.venue-print:hover img { transform: scale(1.025); }
.venue-print > span {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 5px 12px;
  color: #fff; background: #35437d;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase;
}
.venue-print > span > span { font-size: 14px; }
.agenda-tools, .day-heading {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
}
.agenda-tools { margin: 25px 0 15px; }
.agenda-tools h2 { font-size: clamp(24px, 2.2vw, 32px); }
.agenda-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.agenda-actions :is(a,button) {
  border: 0; padding: 6px 0; color: var(--heading); background: none;
  display: inline-flex; gap: 7px; align-items: center; font-size: 13px; font-weight: 600;
}
.agenda-actions :is(a,button):hover, .program-links a:hover, .paper-result a:hover { text-decoration: underline; }
.agenda-actions svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.day-tabs { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border: 1px solid var(--rule); }
.day-tabs button {
  background: var(--bg); color: var(--heading); padding: 17px clamp(10px,1.65vw,26px);
  text-align: left; border: 0; border-right: 1px solid var(--rule);
  display: flex; gap: clamp(8px,1.1vw,18px); align-items: center; min-width: 0;
  transition: background-color .16s ease, color .16s ease;
}
.day-tabs button:last-child { border-right: 0; }
.day-tabs button:hover { background: var(--accent-tint); }
.day-tabs button[aria-selected="true"] { background: var(--accent); color: var(--bg); }
.day-tabs button:focus-visible { position: relative; z-index: 1; outline-offset: 1px; }
.tab-date {
  font: 500 clamp(34px,3.8vw,55px)/1 var(--font-serif);
  letter-spacing: -.055em; font-variant-numeric: lining-nums tabular-nums;
}
.tab-copy { display: grid; gap: 3px; }
.tab-copy > span, .day-number, .event-kind {
  font: 600 11px/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .085em;
}
.tab-copy small { color: var(--text-secondary); font: 500 12px/1.35 var(--font-sans); }
.tab-copy .tab-social { color: var(--heading); font-weight: 600; }
.day-tabs [aria-selected="true"] small { color: inherit; }
.day-panel, .paper-finder, .paper-row { scroll-margin-top: calc(var(--topbar-h) + 16px); }
.day-panel:not([hidden]) { animation: agenda-in .18s ease-out; }
@keyframes agenda-in { from { opacity: .65; transform: translateY(3px); } to { opacity: 1; transform: none; } }
.day-heading { padding: 28px 0 17px; border-bottom: 2px solid var(--accent); align-items: end; }
.day-number { color: var(--quiet); }
.day-number span { margin-inline: 6px; }
.day-heading h3 { margin-top: 5px; font: 550 clamp(26px,2.7vw,39px)/1.12 var(--font-serif); letter-spacing: -.03em; }
.zone { font-size: 12px; color: var(--text-secondary); }
.zone b { font-family: var(--font-mono); font-weight: 500; color: var(--heading); margin-left: 4px; }
.time-block {
  display: grid; grid-template-columns: clamp(96px,11.5vw,165px) minmax(0,1fr);
  border-bottom: 1px solid var(--rule);
}
.time-rail {
  padding: 21px 10px 18px 0;
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  display: flex; flex-direction: column; align-items: start;
}
.time-rail > span { font-size: 20px; font-weight: 600; line-height: 1.25; color: var(--heading); }
.time-rail > small { font-size: 13px; color: var(--quiet); }
.time-rail em { font: normal 11px/1.35 var(--font-sans); color: var(--text-secondary); margin-top: 9px; }
.event-grid { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0,1fr); padding: 20px 0; }
.event-item { padding-inline: clamp(12px,1.6vw,25px); border-left: 1px solid var(--rule); min-width: 0; }
.event-kind { display: block; font-size: 10px; color: var(--heading); margin-bottom: 6px; letter-spacing: .1em; }
.event-item strong, .oral-session summary strong, .paper-result strong, .paper-row strong {
  display: block; font-size: 15px; font-weight: 620; line-height: 1.45; overflow-wrap: anywhere;
}
.event-item strong a span { color: var(--accent); font-size: .78em; white-space: nowrap; }
.event-item a:hover { text-decoration: underline; text-underline-offset: 3px; color: var(--accent); }
.event-item p, .paper-row p, .paper-result p { font-size: 13px; color: var(--text-secondary); line-height: 1.55; margin-top: 4px; }
.event-workshop .event-kind::before, .event-tutorial .event-kind::before {
  content: ''; display: inline-block; margin-right: 7px; width: 7px; height: 7px; background: currentColor;
}
.event-tutorial .event-kind::before { border-radius: 50%; background: transparent; border: 1.4px solid currentColor; }
.break-block { background: var(--accent-tint); align-items: center; }
.break-block .time-rail { flex-direction: row; flex-wrap: wrap; align-items: baseline; gap: 4px; padding-block: 12px; padding-left: 8px; }
.break-block .time-rail > span, .break-block .time-rail > small { font: 500 12px/1.4 var(--font-mono); color: var(--text-secondary); }
.break-block .event-grid { padding-block: 0; }
.event-break strong { font-size: 13px; color: var(--text-secondary); font-weight: 550; }
.oral-session { border-bottom: 1px solid var(--rule); }
.oral-session:last-child { border-bottom: 0; }
.oral-session summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 18px;
  align-items: center; padding: 15px clamp(12px,1.6vw,25px); transition: background-color .15s;
}
.oral-session summary::-webkit-details-marker { display: none; }
.oral-session summary:hover, .oral-session[open] summary { background: var(--accent-tint); }
.oral-session summary .event-kind { margin-bottom: 2px; }
.paper-count { flex: none; display: inline-flex; align-items: center; gap: 10px; font-size: 12px; color: var(--accent); }
.paper-count i { width: 8px; height: 8px; border-right: 1.5px solid; border-bottom: 1.5px solid; transform: rotate(45deg); }
.oral-session[open] .paper-count i { transform: rotate(225deg); }
.paper-list { list-style: none; margin: 0; padding: 0 clamp(12px,1.6vw,25px); }
.paper-row { padding: 13px 0; border-top: 1px solid var(--rule); display: grid; grid-template-columns: 110px minmax(0,1fr); gap: 10px; }
.paper-time, .paper-row small, .paper-result small { font: 500 11px/1.6 var(--font-mono); color: var(--heading); }
.paper-row:target { background: var(--accent-soft); }
.paper-finder { padding: clamp(32px,4.2vw,58px) 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 36px; align-items: center; }
.paper-finder .kicker { margin-bottom: 8px; }
.paper-finder h2 { font-size: clamp(27px,3vw,40px); }
.paper-finder p, .finder-entry label { font-size: 14px; color: var(--text-secondary); }
.finder-entry label { display: block; font-weight: 600; margin-bottom: 5px; }
.finder-entry input {
  width: 100%; font: inherit; font-size: 15px; border: 1px solid var(--border-strong); border-radius: 3px;
  color: var(--text); background: var(--bg); padding: 10px 12px;
}
#result-count:not(:empty) { margin-top: 8px; }
#paper-results { grid-column: 1/-1; }
.paper-result {
  border-bottom: 1px solid var(--rule); padding: 15px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.paper-result:first-child { border-top: 1px solid var(--rule); margin-top: 24px; }
.paper-result a { flex: none; font-size: 13px; color: var(--heading); }
.program-links { padding: 12px 0; border-bottom: 1px solid var(--rule); display: flex; align-items: center; flex-wrap: wrap; gap: 8px 24px; }
.program-links h2 { font: 600 14px var(--font-sans); margin-right: auto; }
.program-links a { color: var(--heading); font-size: 13px; }

@media (max-width: 800px) {
  .program-mast { grid-template-columns: minmax(0,1fr) 29%; gap: 16px; }
  .venue-print { aspect-ratio: 1.4; }
  .venue-print > span { font-size: 8px; letter-spacing: .025em; }
  .tab-copy small:not(.tab-social) { display: none; }
  .tab-copy > span { font-size: 10px; }
  .event-grid { grid-auto-flow: row; grid-auto-columns: unset; gap: 13px; }
  .event-item { padding-block: 1px; }
  .time-block { grid-template-columns: 106px minmax(0,1fr); }
}
@media (max-width: 600px) {
  .program-mast { display: block; padding: 26px 0 22px; }
  .program-mast h1 { font-size: clamp(39px,9.2vw,54px); }
  .program-mast .kicker { margin-bottom: 9px; }
  .venue-print { display: none; }
  .program-status { margin-top: 9px; }
  .agenda-tools { margin: 17px 0 11px; }
  .agenda-tools h2 { font-size: 23px; white-space: nowrap; }
  .agenda-actions { flex-wrap: nowrap; gap: 8px; }
  #print-program { min-width: 28px; min-height: 36px; justify-content: center; }
  #print-program span { display: none; }
  .agenda-actions :is(a,button) { font-size: 12px; gap: 4px; }
  .agenda-actions svg { width: 13px; }
  .day-tabs button { flex-direction: column; align-items: start; gap: 3px; padding: 10px 8px; }
  .tab-date { font-size: 33px; }
  .tab-copy > span { font-size: 9px; letter-spacing: .035em; white-space: nowrap; }
  .tab-copy .tab-social { font-size: 10px; }
  .day-heading { align-items: start; flex-direction: column; gap: 6px; padding: 22px 0 12px; }
  .time-block { grid-template-columns: 79px minmax(0,1fr); }
  .time-rail { padding-top: 16px; }
  .time-rail > span { font-size: 17px; }
  .time-rail > small { font-size: 11px; }
  .event-grid { padding: 15px 0; }
  .break-block .time-rail { flex-direction: column; gap: 0; padding-left: 4px; }
  .event-item strong, .oral-session summary strong { font-size: 14px; }
  .oral-session summary { align-items: start; flex-direction: column; gap: 5px; }
  .paper-count { font-size: 11px; }
  .paper-row { grid-template-columns: 1fr; gap: 3px; }
  .paper-finder { grid-template-columns: 1fr; row-gap: 14px; }
  .paper-result { flex-direction: column; align-items: start; gap: 6px; }
  .program-links { column-gap: 14px; }
  .program-links h2 { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .program-page *, .program-page *::before, .program-page *::after { transition: none; animation: none; }
}
@media print {
  @page { margin: 15mm; }
  .topbar, .site-footer, .skip-link, .venue-print, .agenda-tools, .day-tabs, .paper-finder, .program-links { display: none; }
  .program-page .container { max-width: none; padding: 0; }
  .program-mast { display: block; padding: 0 0 12px; }
  .program-mast h1 { font-size: 30pt; }
  .program-page .day-panel[hidden] { display: block; }
  .day-panel { animation: none; }
  .day-panel + .day-panel { break-before: page; }
  .time-block { display: block; }
  .time-rail { flex-direction: row; gap: 8px; align-items: baseline; padding: 5px 0; break-after: avoid; }
  .event-grid { padding: 0 0 8px; }
  .paper-row, .event-item, .day-heading, .oral-session summary { break-inside: avoid; }
  .paper-row { display: block; padding: 4px 0; }
  .paper-count i { display: none; }
  .oral-session summary { padding: 6px 0; break-after: avoid; }
  .paper-list { padding: 0 14px; }
}