/* ================================================================
   TENTATIVE PROGRAMME
   ================================================================ */

/* All programme text uses Avenir Next */
#programme,
#programme * {
  font-family: 'Avenir Next Pro', 'Avenir Next LT Pro', 'Avenir Next', 'Avenir', Arial, sans-serif;
  font-weight: 300;
}

#programme.prog-section {
  background: #0c0c0e;
  padding: 6rem 0 7rem;
  position: relative;
  z-index: 4;
}

.prog-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

/* -- Heading: Bebas Neue stacked like KEY TOPICS, center-justified -- */
.prog-heading-wrap {
  text-align: center;
  margin-bottom: 5rem;
  padding: 0;
}

.prog-kicker {
  font-family: 'Avenir Next Pro', 'Avenir Next LT Pro', Arial, sans-serif;
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgb(255, 255, 255);
  margin: 0 0 2rem;
  display: block;
}

.prog-title-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.prog-title-line1,
.prog-title-line2 {
  font-family: 'Bebas Neue', 'Arial Narrow', sans-serif !important;
  font-weight: 400 !important;  /* override #programme * { font-weight: 300 } */
  letter-spacing: -0.01em;
  text-transform: uppercase;
  line-height: 0.85;
  display: block;
}

/* Small line: like venue-title-line1 — small, dimmed */
.prog-title-line1 {
  font-size: clamp(2.5rem, 5vw, 9rem);
  color: #fffffff4;
  opacity: 0;
  transform: translateX(160px) translateY(-120px) skewX(-12deg);
  transition: opacity 0.9s ease 0s, transform 1.2s cubic-bezier(0.16,1,0.3,1) 0s;
  white-space: nowrap;
}

/* Dominant line: like venue-title-line2 — large, bright */
.prog-title-line2 {
  font-size: clamp(5rem, 10vw, 14rem);
  color: #fffffff4;
  opacity: 0;
  transform: translateX(-160px) translateY(120px) skewX(12deg);
  transition: opacity 0.9s ease 0.12s, transform 1.2s cubic-bezier(0.16,1,0.3,1) 0.12s;
  white-space: nowrap;
}

/* Triggered class — identical pattern to .venue-entered */
#programme.prog-title-entered .prog-title-line1,
#programme.prog-title-entered .prog-title-line2 {
  opacity: 1;
  transform: none;
}

/* Instant reset when leaving viewport */
#programme.prog-title-resetting .prog-title-line1,
#programme.prog-title-resetting .prog-title-line2 {
  transition: none !important;
}

.prog-rule {
  display: none;
}

/* -- Day tabs: flat solid buttons -- */
.prog-tabs {
  display: flex;
  gap: 6px;
  margin: 0 auto 3rem;  /* auto left/right centres the block within prog-inner */
  width: fit-content;
}

.prog-tab {
  background: rgba(255,255,255,0.07);
  border: none;
  border-radius: 0;
  padding: 1.15rem 0;
  width: 220px;         /* fixed equal width for both tabs */
  flex: 0 0 220px;
  cursor: pointer;
  text-align: center;
  color: rgba(255,255,255,0.35);
  transition: color 0.15s ease, background 0.15s ease;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.15rem;
  font-family: inherit;
  outline: none;
  box-sizing: border-box;
}

.prog-tab:hover {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.75);
}

.prog-tab.active {
  background: #ff1f6b;
  color: #ffffff;
}

.prog-tab-day {
  font-family: 'Bebas Neue', Impact, sans-serif;
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: inherit;
  line-height: 1;
}

.prog-tab-date {
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.65;
}

/* -- Loading -- */
#programme-status {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.22);
  padding: 2rem 0;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* -- Day header -- */
.prog-day-header {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.prog-day-name {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #ff1f6b;
}

.prog-day-date {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
}

/* -- Table -- */
.prog-table {
  width: 100%;
  border-collapse: collapse;
}

/* -- Row -- */
.prog-row {
  border-top: 1px solid rgba(255,255,255,0.05);
  transition: background 0.12s ease;
}

.prog-row:first-child { border-top: none; }
.prog-row:hover { background: rgba(255,255,255,0.018); }

/* -- Time cell -- */
.prog-time-cell {
  width: 100px;
  padding: 1.2rem 1.6rem 1.2rem 0;
  vertical-align: top;
  white-space: nowrap;
}

.prog-time-start {
  display: block;
  font-family: 'Bebas Neue', Impact, sans-serif;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.7);
}

.prog-time-end {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-family: 'Bebas Neue', Impact, sans-serif;
  font-size: clamp(0.72rem, 1vw, 0.88rem);
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.28);
  margin-top: 0.2rem;
  padding: 0.1em 0.45em 0.1em 0.35em;
  background: rgba(255,255,255,0.05);
  border-radius: 2px;
  border-left: 2px solid rgba(255,255,255,0.12);
}

/* -- Session cell -- */
.prog-session-cell {
  padding: 1.2rem 0 1.2rem 1.4rem;
  vertical-align: top;
  border-left: 2px solid transparent;
}

.prog-session-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* -- Type label -- */
.prog-type-badge {
  font-family: 'Avenir Next Pro', 'Avenir Next', Arial, sans-serif;
  font-size: clamp(0.58rem, 0.75vw, 0.68rem);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.15em 0.6em;
  border-radius: 2px;
  align-self: flex-start;
}

/* -- Session title -- */
.prog-session-title {
  font-size: clamp(0.92rem, 1.3vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.82);
  line-height: 1.55;
}

/* -- Meta (speaker + detail) -- */
.prog-meta {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-top: 0.1rem;
}

.prog-speaker,
.prog-detail {
  font-size: clamp(0.65rem, 0.85vw, 0.78rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.22);
  display: flex;
  align-items: center;
  gap: 0.3em;
}

/* -- Row variants -- */

/* Keynote */
.prog-row.pt-keynote .prog-session-cell {
  border-left-color: #ff1f6b;
  background: #1a0610;
}
.prog-row.pt-keynote .prog-session-title { color: #ffffff; font-weight: 600; }
.prog-row.pt-keynote .prog-time-start { color: #ff1f6b; }
.pt-keynote.prog-type-badge {
  background: rgba(255,31,107,0.18);
  color: #ff1f6b;
  border: 1px solid rgba(255,31,107,0.4);
}

/* Oral */
.prog-row.pt-oral .prog-session-cell {
  border-left-color: #4d82ff;
  background: #091426;
}
.prog-row.pt-oral .prog-time-start { color: #8da8ff; }
.pt-oral.prog-type-badge {
  background: rgba(77,130,255,0.15);
  color: #8da8ff;
  border: 1px solid rgba(77,130,255,0.35);
}

/* Poster */
.prog-row.pt-poster .prog-session-cell {
  border-left-color: #ff9f43;
  background: #1a1006;
}
.prog-row.pt-poster .prog-time-start { color: #ffbe7a; }
.pt-poster.prog-type-badge {
  background: rgba(255,159,67,0.15);
  color: #ffbe7a;
  border: 1px solid rgba(255,159,67,0.35);
}

/* Break */
.prog-row.pt-break .prog-session-cell { border-left-color: rgba(255,255,255,0.12); }
.prog-row.pt-break .prog-session-title { color: rgba(255,255,255,0.35); font-size: 0.78rem; }
.prog-row.pt-break .prog-time-start { color: rgba(255,255,255,0.35); }
.prog-row.pt-break { background: rgba(0,0,0,0.15); }

/* Ceremony */
.prog-row.pt-ceremony .prog-session-cell {
  border-left-color: #c5a020;
  background: #181400;
}
.prog-row.pt-ceremony .prog-time-start { color: #e8c050; }
.pt-ceremony.prog-type-badge {
  background: rgba(197,160,32,0.18);
  color: #e8c050;
  border: 1px solid rgba(197,160,32,0.4);
}

/* Social */
.prog-row.pt-social .prog-session-cell {
  border-left-color: #26d59a;
  background: #071710;
}
.prog-row.pt-social .prog-time-start { color: #5ef0b5; }
.pt-social.prog-type-badge {
  background: rgba(38,213,154,0.15);
  color: #5ef0b5;
  border: 1px solid rgba(38,213,154,0.35);
}

/* Logistics */
.prog-row.pt-logistics .prog-session-cell { border-left-color: rgba(255,255,255,0.1); }
.prog-row.pt-logistics .prog-session-title { color: rgba(255,255,255,0.45); font-size: 0.78rem; }
.prog-row.pt-logistics { background: rgba(0,0,0,0.12); }

/* -- Responsive -- */
@media (max-width: 640px) {
  .prog-inner { padding: 0 1.25rem; }
  .prog-time-cell { width: 75px; padding-right: 1rem; }
  .prog-time-start { font-size: 1rem; }
  .prog-session-cell { padding-left: 1rem; }

  .prog-tabs {
    display: flex;
    width: 100%;
    gap: 4px;
  }

  .prog-tab {
    flex: 1 1 0;          /* equal-width, fill available space */
    width: auto;
    padding: 0.85rem 0.5rem;
  }

  .prog-tab-day {
    font-size: 1.1rem;
    letter-spacing: 0.08em;
  }

  .prog-tab-date {
    font-size: 0.5rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }

  .prog-title-line1 { font-size: clamp(1.5rem, 6vw, 4rem); }
  .prog-title-line2 { font-size: clamp(3.5rem, 14vw, 8rem); }
}

@media (max-width: 420px) {
  .prog-time-cell { display: none; }
  .prog-session-cell { border-left: none; padding-left: 0; }
  .prog-tab-date { display: none; }   /* too tight — only show day name */
}

/* ================================================================
   ACCEPTED ABSTRACTS — expandable rows
   ================================================================ */

/* "View Presentations" toggle button on oral/poster rows */
.prog-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-top: 0.5rem;
  padding: 0.3em 0.8em;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  align-self: flex-start;
}
.prog-expand-btn:hover {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  border-color: rgba(255,255,255,0.3);
}
.pt-oral .prog-expand-btn   { color: #8da8ff; border-color: rgba(77,130,255,0.35); }
.pt-poster .prog-expand-btn { color: #ffbe7a; border-color: rgba(255,159,67,0.35); }

/* Expanded presentations container row */
.prog-expand-row {
  display: none;  /* hidden by default; toggled via JS */
}
.prog-expand-cell {
  padding: 0 !important;
  border-bottom: 1px solid rgba(255,255,255,0.06) !important;
}
.prog-presentations-wrap {
  padding: 0.8rem 1.4rem 1rem 2rem;
  background: rgba(0,0,0,0.35);
  border-left: 3px solid rgba(77,130,255,0.4);
}
.pt-poster + .prog-expand-row .prog-presentations-wrap {
  border-left-color: rgba(255,159,67,0.4);
}
.prog-presentations-label {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.4em;
}

/* Individual presentation item */
.prog-presentation {
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: rgba(255,255,255,0.02);
}
.prog-presentation:hover {
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.04);
}
.prog-presentation.prog-pres-open {
  border-color: rgba(77,130,255,0.4);
}

/* Presentation header line */
.prog-pres-header {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
}
.prog-pres-toggle {
  color: rgba(255,255,255,0.3);
  font-size: 0.75rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.prog-pres-open .prog-pres-toggle { color: #8da8ff; }
.prog-pres-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  flex: 1;
}
.prog-pres-title {
  font-size: 0.88rem;
  font-weight: 400;
  color: rgba(255,255,255,0.82);
  line-height: 1.45;
  letter-spacing: 0.02em;
}
.prog-pres-author {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.38);
  letter-spacing: 0.05em;
}

/* Full abstract panel */
.prog-pres-abstract {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 1rem 1.2rem 1rem 2.4rem;
  background: rgba(0,0,0,0.25);
}
.prog-pres-abstract-inner h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  margin-bottom: 0.4rem;
  line-height: 1.45;
}
.prog-pres-meta-line {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0.8rem;
  letter-spacing: 0.04em;
}
.prog-pres-abstract-text {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  white-space: pre-wrap;
}

/* Fade-in animation for expanded rows */
@keyframes prog-fade-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}