@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Source+Sans+3:ital,wght@0,300..700;1,300..700&display=swap');
:root {
  color-scheme: light;
  --ink: #172025; --muted: #596370; --blue: #1d44b8;
  --line: #d9e0e9; --paper: #fff; --tint: #f4f7fc;
  font-family: 'Source Sans 3', Arial, 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  color: var(--ink); background: var(--paper); font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--site-header-height, 96px) + 24px); }
body { margin: 0; font-size: 1rem; font-weight: 350; line-height: 1.65; }
a { color: inherit; text-underline-offset: 5px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 6px; }
.wrap { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; left: 20px; top: -100px; background: #fff; padding: 12px; z-index: 30; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 20; background: var(--paper); }
.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.wordmark { display: inline-block; font-size: 1.55rem; letter-spacing: -.025em; font-weight: 700; text-decoration: none; }
nav { display: flex; gap: 28px; flex-wrap: wrap; }
nav a { font-size: .875rem; text-decoration: none; }
nav a:hover { color: var(--blue); }
.hero { padding-top: 58px; padding-bottom: 52px; }
.eyebrow { color: var(--blue); font-size: .875rem; font-weight: 600; letter-spacing: .025em; }
.hero-meta { margin-bottom: 28px; }
.eyebrow { margin: 0; }
.eyebrow span { padding: 0 15px; color: #8f9bb0; }
h1 { max-width: 100%; margin: 0; font-size: clamp(2.6rem, 6.5vw, 5.55rem); line-height: 1.1; letter-spacing: -.025em; font-weight: 650; }
h1 > span { display: block; }
.title-line { white-space: nowrap; }
.title-accent { color: inherit; }
.hero-bottom { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; margin-top: 35px; }
.hero-art { display: block; width: 100%; height: auto; max-height: 260px; object-fit: contain; margin-top: 24px; }
.hero-art + .hero-bottom { margin-top: 16px; }
.hero-bottom p { max-width: none; margin: 0; font-size: 1.0625rem; color: var(--muted); white-space: nowrap; }
.text-link { display: inline-block; color: var(--blue); text-decoration: none; border-bottom: 1px solid var(--blue); padding-bottom: 5px; font-weight: 550; }
.text-link span { margin-left: 12px; }
.section { padding-top: 48px; padding-bottom: 52px; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 30px; }
h2 { margin: 0; font-size: clamp(1.65rem, 3vw, 2.1rem); font-weight: 600; letter-spacing: -.015em; line-height: 1.25; overflow-wrap: anywhere; }
h3 { margin: 0; font-size: 1rem; line-height: 1.5; font-weight: 600; }
.section-note { margin: 0; font-size: .875rem; color: var(--muted); }
.speaker-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; column-gap: 40px; list-style: none; padding: 0; margin: 0; }
.speaker-grid li { padding: 19px 0; border-top: 1px solid var(--line); }
.speaker-grid p { margin: 3px 0 0; font-size: .875rem; color: var(--muted); }
.speaker-talk { max-width: 790px; }
.speaker-talk[open] > summary { margin-bottom: 0; }
.speaker-talk-content { margin-top: 16px; border-left: 2px solid #b4c5ec; padding-left: 18px; overflow-anchor: none; }
.speaker-talk-content h4 { margin: 18px 0 6px; font-size: .875rem; font-weight: 600; color: var(--muted); }
.speaker-talk-content h4:first-child { margin-top: 0; }
.speaker-grid .speaker-talk p { margin: 0; padding: 0; border: 0; color: var(--ink); font-size: 1rem; line-height: 1.8; overflow-wrap: anywhere; }
.speaker-grid .speaker-talk .talk-title { font-weight: 600; }
.speaker-grid .speaker-talk p.tbd { color: var(--muted); font-weight: 400; }
.pending-heading { margin-top: 32px; margin-bottom: 8px; }
.pending-note { margin: 0 0 20px; color: var(--muted); font-size: .875rem; }
.name-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; }
.speaker-status, .speaker-mode { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: .875rem; font-weight: 500; }
.speaker-status { color: #77530b; background: #fff2d5; }
.speaker-mode { padding: 1px 8px 0; color: var(--blue); background: #e5ecfb; white-space: nowrap; line-height: 1.2; }
.program-section { padding: 52px 0 60px; background: var(--tint); border-block: 1px solid var(--line); }
.program-heading { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.program-title-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 10px 24px; width: 100%; }
.program-provisional { font-size: .72em; font-weight: 400; letter-spacing: normal; white-space: nowrap; }
.program-updated { margin-left: auto; text-align: right; white-space: nowrap; }
.program-download { margin: 0 0 24px; }
.day-nav { gap: 10px; margin-top: 25px; }
.day-nav a { border: 1px solid #acbad8; padding: 7px 18px; border-radius: 4px; color: var(--blue); font-weight: 500; }
.day-nav a:hover { background: #e5ebfb; }
.day { margin-top: 40px; }
.day-heading { padding-bottom: 15px; border-bottom: 2px solid var(--blue); }
.day-label { margin: 0 0 8px; color: var(--blue); font-size: .875rem; font-weight: 600; }
.day-overview { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 20px; }
.day-heading h3 { font-size: 1.45rem; font-weight: 600; letter-spacing: -.01em; }
.day-meta { margin: 0; color: var(--muted); font-size: .875rem; white-space: nowrap; }
.schedule-list { list-style: none; margin: 0; padding: 0; }
.schedule-row { display: grid; grid-template-columns: 165px 1fr; gap: 24px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.schedule-row .time { display: flex; gap: 2px; padding-top: 2px; font-family: 'IBM Plex Mono', monospace; font-size: .875rem; font-weight: 400; white-space: nowrap; }
.talk-name { margin: 0; font-weight: 600; }
.talk-affiliation { margin: 2px 0; font-size: .875rem; color: var(--muted); }
.talk-title { max-width: 740px; margin: 10px 0 0; }
.talk-title.tbd, details .tbd { color: var(--muted); font-style: italic; }
.schedule-row.break, .schedule-row.lunch { padding-block: 11px; color: var(--muted); font-size: .875rem; }
.schedule-row.break p, .schedule-row.lunch p { margin: 0; }
.schedule-row.break .time, .schedule-row.lunch .time { padding-top: 0; }
.schedule-row.lunch { background: #eaf0fa; }
details { max-width: 790px; margin-top: 12px; }
summary { width: fit-content; cursor: pointer; color: var(--blue); font-size: .875rem; font-weight: 500; }
summary:hover { text-decoration: underline; text-underline-offset: 4px; }
details[open] > summary { margin-bottom: 12px; color: #a34c58; }
details p { margin: 0; border-left: 2px solid #b4c5ec; padding-left: 18px; font-size: 1rem; line-height: 1.8; }
.venue, .previous-workshop { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; }
.venue address { margin: 20px 0; font-style: normal; }
.venue-room { margin-top: 0; font-weight: 600; }
.venue-links { display: flex; flex-wrap: wrap; gap: 14px 28px; }
.venue { border-top: 0; }
.venue-name { margin: 0 0 9px; font-size: 1rem; font-weight: inherit; }
.previous-name { margin: 0 0 9px; font-size: 1.0625rem; font-weight: 500; }
.venue p { margin-bottom: 9px; }
.muted { color: var(--muted); font-size: .875rem; }
.organizer-host { margin: 0 0 24px; }
.committee-heading { margin: 0 0 16px; font-size: 1.0625rem; }
.organizer-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 40px; list-style: none; padding: 0; margin: 0; }
.organizer-grid h4 { margin: 0; font-size: 1rem; line-height: 1.5; font-weight: 600; }
.organizer-grid p { margin: 3px 0 0; color: var(--muted); font-size: .875rem; }
.organizer-contact { margin: 28px 0 0; }
.organizer-contact a { color: var(--blue); overflow-wrap: anywhere; }
.funding-intro { margin: -8px 0 24px; color: var(--muted); }
.funding-projects { display: grid; gap: 20px; }
.funding-project { border-left: 3px solid var(--blue); background: var(--tint); padding: 23px 26px; }
.funding-project p { margin: 8px 0 0; color: var(--muted); }
.funding-project .funding-label { margin: 0 0 8px; color: var(--blue); font-size: .875rem; font-weight: 600; }
.funding-project h3 { line-height: 1.8; }
.funding-project .funding-grant { font-size: .875rem; }
.previous-workshop .text-link { margin-top: 10px; font-size: .875rem; }
footer { display: flex; justify-content: space-between; gap: 24px; padding: 24px 0 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
footer span:first-child { color: var(--ink); font-weight: 650; white-space: nowrap; }
@media (max-width: 800px) {
  .wrap { width: calc(100% - 48px); }
  .header-inner { align-items: flex-start; }
  .site-header nav { justify-content: flex-end; column-gap: 20px; row-gap: 8px; }
  .hero-bottom { gap: 18px; }
  .hero-bottom p { white-space: normal; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 14px; }
  .speaker-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; }
  .venue, .previous-workshop { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 540px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { flex-direction: column; gap: 14px; padding: 20px 0; }
  .site-header nav { justify-content: flex-start; column-gap: 18px; }
  .hero { padding: 38px 0; }
  .hero-meta { margin-bottom: 23px; }
  .eyebrow { font-size: .875rem; }
  .eyebrow span { padding: 0 7px; }
  h1 { font-size: clamp(1.4rem, 7vw, 2.75rem); line-height: 1.13; letter-spacing: -.025em; }
  .hero-bottom { margin-top: 26px; }
  .section, .program-section { padding-block: 36px; }
  .section-heading { margin-bottom: 24px; }
  .speaker-grid { column-gap: 18px; }
  .speaker-grid li { padding: 16px 0; }
  .organizer-grid { grid-template-columns: 1fr; }
  .day { margin-top: 30px; }
  .day-heading h3 { font-size: 1.35rem; }
  .schedule-row { grid-template-columns: 1fr; gap: 5px; padding-block: 17px; }
  .schedule-row.break, .schedule-row.lunch { grid-template-columns: 130px 1fr; gap: 10px; }
  .funding-project { padding: 20px; }
  footer { flex-direction: column; gap: 5px; }
}
@media (max-width: 360px) {
  .speaker-grid { grid-template-columns: 1fr; }
  h1 { font-size: 1.4rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

.session-heading { padding: 20px 0 10px; color: var(--blue); }
.session-heading h4 { margin: 0; font-size: 1rem; font-weight: 600; line-height: 1.5; }
.math-inline { overflow-wrap: anywhere; }