* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
#map { position: absolute; inset: 0; z-index: 0; }

#panel {
  position: absolute; top: 12px; right: 12px; z-index: 1000;
  width: 290px; max-height: calc(100% - 24px); overflow-y: auto;
  background: #fff; border-radius: 10px; padding: 14px 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.18); font-size: 14px;
}
#panel h1 { font-size: 16px; margin: 0 0 2px; }
#panel .sub { color: #666; font-size: 12px; margin: 0 0 12px; }

.modes { display: flex; gap: 6px; margin-bottom: 14px; }
.modes button {
  flex: 1; padding: 8px 6px; border: 1px solid #cbd5e1; background: #f8fafc;
  border-radius: 7px; cursor: pointer; font-size: 13px; font-weight: 600; color: #334155;
}
.modes button.active { background: #0369a1; border-color: #0369a1; color: #fff; }

.section-title { font-weight: 600; margin: 4px 0 6px; display: flex; justify-content: space-between; align-items: baseline; }
.section-title a { font-size: 11px; font-weight: 500; color: #0369a1; cursor: pointer; text-decoration: none; }

.periods { display: flex; flex-direction: column; gap: 3px; margin-bottom: 14px; max-height: 220px; overflow-y: auto; }
.periods label { display: flex; align-items: center; gap: 7px; padding: 3px 4px; border-radius: 5px; cursor: pointer; }
.periods label:hover { background: #f1f5f9; }
.periods input { accent-color: #0369a1; }
.empty { color: #888; font-style: italic; font-size: 13px; padding: 4px 0 12px; }

.legend { border-top: 1px solid #e2e8f0; padding-top: 10px; }
.legend .row { display: flex; align-items: center; gap: 8px; margin: 3px 0; font-size: 12.5px; }
.legend .swatch { width: 16px; height: 16px; border-radius: 3px; border: 1px solid rgba(0,0,0,.2); flex: none; }
.legend .ring { width: 16px; height: 16px; border-radius: 50%; flex: none; }

.popup h3 { margin: 0 0 6px; font-size: 14px; }
.popup table { border-collapse: collapse; font-size: 12.5px; }
.popup td { padding: 1px 8px 1px 0; }
.popup .big { font-size: 15px; font-weight: 700; }