/* IUGA Scientific Program — dark theme (modern) */

.iuga-wrap {
  --prog-bg: transparent;
  --prog-surface: #121226;
  --prog-surface-2: #16162a;
  --prog-border: rgba(233, 217, 168, 0.18);
  --prog-border-soft: rgba(255, 255, 255, 0.08);
  --prog-text: rgba(255, 255, 255, 0.9);
  --prog-muted: rgba(255, 255, 255, 0.62);
  --prog-accent: #e9d9a8;
  --prog-accent-soft: rgba(233, 217, 168, 0.12);
  --prog-open: rgba(76, 175, 117, 0.16);
  --prog-close: rgba(220, 80, 90, 0.16);
  --prog-break: rgba(233, 217, 168, 0.14);
  --prog-blue: rgba(74, 163, 194, 0.16);
  --prog-session: rgba(155, 123, 199, 0.18);
  color: var(--prog-text);
  max-width: 100%;
  margin: 0 auto;
}

.iuga-wrap * {
  box-sizing: border-box;
}

.iuga-dlbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  width: max-content;
  margin: 0 auto 1.5rem;
  padding: 0.75rem 1.35rem;
  background: var(--prog-accent);
  color: #0b0b18 !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 0.45rem;
  border: 1px solid var(--prog-accent);
  transition: background-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

.iuga-dlbtn:hover,
.iuga-dlbtn:focus-visible {
  background: #f3e9c8;
  color: #0b0b18 !important;
  opacity: 0.95;
}

.iuga-legend {
  text-align: center;
  font-size: 0.8rem;
  color: var(--prog-muted);
  margin: 0 0 1.25rem;
}

.iuga-legend .flag {
  color: #ff8a8a;
  font-weight: 700;
}

/* Day tabs */
.iuga-daytabs {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.iuga-daytabs button,
.iuga-daybtn {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 650;
  padding: 0.7rem 1.15rem;
  border-radius: 0.5rem;
  border: 1px solid var(--prog-border);
  background: var(--prog-surface);
  color: var(--prog-text);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.iuga-daytabs button.active,
.iuga-daybtn.active {
  background: var(--prog-accent);
  border-color: var(--prog-accent);
  color: #0b0b18;
}

.iuga-daytabs button:hover:not(.active),
.iuga-daybtn:hover:not(.active) {
  border-color: rgba(233, 217, 168, 0.4);
  color: var(--prog-accent);
}

.iuga-daypanel {
  display: none;
}

.iuga-daypanel.active {
  display: block;
}

/* Hall tabs */
.iuga-halltabs {
  display: flex;
  gap: 0.45rem;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin: 0.85rem 0 1rem;
}

.iuga-halltabs button,
.iuga-hallbtn {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--prog-border);
  background: transparent;
  color: var(--prog-muted);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.iuga-halltabs button.active,
.iuga-hallbtn.active {
  background: var(--prog-accent-soft);
  border-color: rgba(233, 217, 168, 0.45);
  color: var(--prog-accent);
}

.iuga-halltabs button:hover:not(.active),
.iuga-hallbtn:hover:not(.active) {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
}

.iuga-hallpanel {
  display: none;
}

.iuga-hallpanel.active {
  display: block;
}

/* Day header bar */
.iuga-daybar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--prog-surface);
  color: #fff;
  text-align: left;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 700;
  padding: 0.95rem 1.15rem;
  border-radius: 0.65rem 0.65rem 0 0;
  border: 1px solid var(--prog-border);
  border-bottom: none;
  letter-spacing: 0.01em;
}

.iuga-daybar::before {
  content: "";
  width: 0.28rem;
  height: 1.15rem;
  border-radius: 2px;
  background: var(--prog-accent);
  flex-shrink: 0;
}

.iuga-subtitle {
  background: var(--prog-surface-2);
  color: var(--prog-muted);
  font-size: 0.8rem;
  text-align: left;
  padding: 0.7rem 1.15rem;
  border-left: 1px solid var(--prog-border);
  border-right: 1px solid var(--prog-border);
  line-height: 1.45;
}

/* Schedule table */
table.iuga-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.4rem;
  margin: 0 0 1.5rem;
  background: transparent;
}

table.iuga-table thead th {
  background: var(--prog-surface);
  color: var(--prog-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 1rem;
  text-align: left;
  border: 1px solid var(--prog-border);
  border-top: none;
}

table.iuga-table thead th:first-child {
  width: 9.5rem;
  text-align: center;
  border-radius: 0 0 0 0.5rem;
}

table.iuga-table thead th:last-child {
  border-radius: 0 0 0.5rem 0;
}

table.iuga-table td {
  border: 1px solid var(--prog-border-soft);
  padding: 0.9rem 1rem;
  vertical-align: top;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--prog-text);
  background: var(--prog-surface);
}

table.iuga-table td.tcell {
  width: 9.5rem;
  text-align: center;
  font-weight: 700;
  white-space: nowrap;
  color: var(--prog-accent);
  font-variant-numeric: tabular-nums;
  background: var(--prog-surface-2);
  border-color: var(--prog-border);
}

table.iuga-table tr td:first-child {
  border-radius: 0.45rem 0 0 0.45rem;
}

table.iuga-table tr td:last-child {
  border-radius: 0 0.45rem 0.45rem 0;
}

/* Row variants — dark-friendly tints (no bright pastels) */
table.iuga-table tr.ropen td,
table.iuga-table tr.ropen {
  background: var(--prog-open);
}

table.iuga-table tr.rclose td,
table.iuga-table tr.rclose {
  background: var(--prog-close);
}

table.iuga-table tr.rbreak td,
table.iuga-table tr.rbreak {
  background: var(--prog-break);
  font-weight: 700;
  color: var(--prog-accent);
}

table.iuga-table tr.rbreak td.tcell {
  color: var(--prog-accent);
}

table.iuga-table tr.rblue td,
table.iuga-table tr.rblue {
  background: var(--prog-blue);
}

table.iuga-table tr.rlavend td,
table.iuga-table tr.rlavend {
  background: var(--prog-session);
}

table.iuga-table tr.rtalk td,
table.iuga-table tr.rtalk {
  background: var(--prog-surface);
}

table.iuga-table tr.rlavend td.tcell,
table.iuga-table tr.rblue td.tcell,
table.iuga-table tr.ropen td.tcell,
table.iuga-table tr.rclose td.tcell,
table.iuga-table tr.rtalk td.tcell {
  background: rgba(11, 11, 24, 0.45);
}

/* Typography inside cells */
.iuga-wrap .stitle {
  font-weight: 700;
  color: #fff;
  font-size: 0.98rem;
}

.iuga-wrap .ttitle {
  font-weight: 500;
  color: var(--prog-text);
}

.iuga-wrap .chairs {
  font-weight: 650;
  margin-top: 0.25rem;
  color: var(--prog-muted);
}

.iuga-wrap .spk {
  display: block;
  color: var(--prog-accent);
  font-weight: 700;
  margin-top: 0.2rem;
}

.iuga-wrap .spk.inline {
  display: inline;
  margin-top: 0;
}

.iuga-wrap .disc {
  font-style: italic;
  color: var(--prog-muted);
}

.iuga-wrap .note {
  font-style: italic;
  color: var(--prog-muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

.iuga-wrap .tba {
  font-style: normal;
  font-weight: 700;
  color: #0b0b18;
  background: var(--prog-accent);
  border-radius: 0.25rem;
  padding: 0.05rem 0.4rem;
  letter-spacing: 0.02em;
}

.iuga-wrap .bullets {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  color: var(--prog-muted);
  font-size: 0.82rem;
}

.iuga-wrap .bullets li {
  margin-bottom: 0.15rem;
}

.iuga-wrap .flag {
  color: #ff8a8a;
  font-weight: 700;
  margin-left: 0.35rem;
  cursor: help;
}

@media (max-width: 640px) {
  .iuga-daytabs,
  .iuga-halltabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.35rem;
    scrollbar-width: thin;
  }

  .iuga-daytabs button,
  .iuga-daybtn,
  .iuga-halltabs button,
  .iuga-hallbtn {
    flex-shrink: 0;
  }

  table.iuga-table td.tcell,
  table.iuga-table thead th:first-child {
    width: 5.5rem;
    font-size: 0.75rem;
    padding: 0.7rem 0.4rem;
  }

  table.iuga-table td {
    font-size: 0.82rem;
    padding: 0.75rem 0.65rem;
  }

  .iuga-daybar {
    font-size: 1rem;
  }
}