/* ==========================================================
   Scientific Program - Modern Tabular Layout
   Add this to your main.css or link separately AFTER main.css
   ========================================================== */

.program-page .page-title h1 {
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* Session color tokens (from Excel legend) */
:root {
  --sc-plenary:      #2563EB;
  --sc-symposium:    #10B981;
  --sc-workshop:     #F59E0B;
  --sc-freepaper:    #8B5CF6;
  --sc-poster:       #14B8A6;
  --sc-break:        #FED7AA;
  --sc-ceremony:     #4F46E5;
  --sc-exhibition:   #DBEAFE;
  --sc-unused:       #F3F4F6;
  --sc-dinner:       #7F1D1D;
  --sc-debate:       #FB7185;
  --sc-breakfast:    #FFF7D6;
  --sc-latebreak:    #C026D3;
  --sc-rehab:        #0F766E;
  --sc-header:       #00B0F0;
}

/* Day header bar */
.sp-day {
  margin: 34px 0 14px;
  padding: 16px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #00B0F0 0%, #1e63d6 100%);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.sp-day__title { margin: 0; font-weight: 800; font-size: 20px; letter-spacing: -0.01em; }
.sp-day__date  { font-size: 14px; opacity: 0.92; font-weight: 600; }

/* Registration desk block */
.sp-registration {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  box-shadow: var(--shadow-xs);
  margin-bottom: 8px;
}
.sp-registration h4 { margin: 0 0 10px; font-weight: 800; font-size: 16px; }
.sp-registration table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.sp-registration td { padding: 6px 10px; border-bottom: 1px dashed rgba(0,0,0,.08); }
.sp-registration tr:last-child td { border-bottom: 0; }
.sp-registration td:first-child { font-weight: 700; width: 220px; color: var(--heading-color); }

/* Table container */
.sp-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  background: var(--surface-color);
  border: 1px solid var(--border-color);
}

/* Program table */
.sp-table {
  width: 100%;
  min-width: 980px;
  border-collapse: separate;
  border-spacing: 0;
  font-family: var(--default-font);
  font-size: 13.5px;
  color: var(--heading-color);
}

.sp-table thead th {
  background: var(--sc-header);
  color: #ffffff;
  font-weight: 800;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  padding: 14px 10px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.25);
  position: sticky;
  top: 0;
}
.sp-table thead th:last-child { border-right: 0; }
.sp-table thead th:first-child { width: 130px; }

.sp-table tbody td {
  padding: 14px 12px;
  vertical-align: middle;
  text-align: center;
  border-bottom: 1px solid rgba(15,23,42,.06);
  border-right: 1px solid rgba(15,23,42,.05);
  line-height: 1.45;
  font-weight: 600;
  color: #0b1b3a;
}
.sp-table tbody tr:last-child td { border-bottom: 0; }
.sp-table tbody td:last-child { border-right: 0; }

.sp-time {
  font-weight: 800;
  font-size: 13px;
  background: #f8fbff;
  color: var(--heading-color);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.sp-cell {
  border-radius: 8px;
  transition: transform var(--transition-fast);
}

/* Session type coloured cells */
.sp-plenary    { background: var(--sc-plenary);    color:#fff; }
.sp-symposium  { background: var(--sc-symposium);  color:#fff; }
.sp-workshop   { background: var(--sc-workshop);   color:#1f2937; }
.sp-freepaper  { background: var(--sc-freepaper);  color:#fff; }
.sp-poster     { background: var(--sc-poster);     color:#fff; }
.sp-break      { background: var(--sc-break);      color:#7c2d12; font-weight:700; }
.sp-ceremony   { background: var(--sc-ceremony);   color:#fff; }
.sp-exhibition { background: var(--sc-exhibition); color:#0b1b3a; }
.sp-unused     { background: var(--sc-unused);     color:#64748b; font-weight:500; }
.sp-dinner     { background: var(--sc-dinner);     color:#fff; }
.sp-debate     { background: var(--sc-debate);     color:#7f1d1d; }
.sp-breakfast  { background: var(--sc-breakfast);  color:#78350f; }
.sp-latebreak  { background: var(--sc-latebreak);  color:#fff; }
.sp-rehab      { background: var(--sc-rehab);      color:#fff; }

.sp-table tbody td[class*="sp-"]:not(.sp-time):hover {
  filter: brightness(1.05);
}

/* Legend */
.sp-legend {
  margin-top: 28px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-xs);
}
.sp-legend h4 { margin: 0 0 14px; font-weight: 800; font-size: 16px; }
.sp-legend__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.sp-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 10px;
  background: #f8fbff;
  border: 1px solid rgba(15,23,42,.06);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--heading-color);
}
.sp-swatch {
  width: 18px; height: 18px; border-radius: 6px; flex: 0 0 auto;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.08);
}

/* Responsive */
@media (max-width: 992px) {
  .sp-table { font-size: 12.5px; }
  .sp-table tbody td { padding: 12px 8px; }
}
@media (max-width: 768px) {
  .sp-day { padding: 14px 16px; }
  .sp-day__title { font-size: 17px; }
}