body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7f7f7;
  color: #333;
}

header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: #ffffff;
  border-bottom: 1px solid #e2e2e2;
}

.site-brand a {
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: #333;
}

.site-nav a {
  margin-left: 16px;
  text-decoration: none;
  font-size: 0.9rem;
  color: #555;
}

.site-nav a.active {
  font-weight: 600;
  border-bottom: 2px solid #9B2915;
  padding-bottom: 2px;
}

#explore {
  padding: 24px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.explore-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid #e2e2e2;
  padding-bottom: 16px;
}

.explore-title {
  margin: 0 0 4px;
  font-size: 1.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.explore-subtitle {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.8;
  max-width: 520px;
}

.explore-controls {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
}

#explore-conference-select {
  min-width: 260px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid #d0d0d0;
  font-size: 0.9rem;
}

.explore-layout {
  display: grid;
  grid-template-columns: minmax(230px, 280px) 1fr;
  gap: 24px;
}

.explore-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}

.meta-card {
  background: #ffffff;
  border-radius: 10px;
  padding: 12px 14px;
  border: 1px solid #ececec;
  font-size: 0.9rem;
  line-height: 1.4;
}

.meta-card div + div {
  margin-top: 4px;
}

.explore-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.explore-panel {
  display: flex;
  flex-direction: column;
}

.explore-panel-wide {
  grid-column: 1 / -1; /* span both columns */
}

.chart-container {
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid #ececec;
  padding: 8px;
  min-height: 180px;
  font-size: 0.85rem;
}

footer.site-footer {
  text-align: center;
  padding: 16px;
  font-size: 0.8rem;
  color: #777;
}

@media (max-width: 900px) {
  .explore-layout {
    grid-template-columns: 1fr;
  }
  .explore-main {
    grid-template-columns: 1fr;
  }
}