:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --panel-2: #232c38;
  --text: #e6edf3;
  --muted: #8b97a6;
  --accent: #2f81f7;
  --border: #2b3340;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

body {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

#sidebar {
  width: 300px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 18px;
  gap: 18px;
  overflow-y: auto;
}

#sidebar header h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.5px;
}
.subtitle { margin: 4px 0 0; color: var(--muted); font-size: 13px; }

.stats { display: flex; gap: 10px; }
.stat {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 6px;
  text-align: center;
}
.stat-num { display: block; font-size: 20px; font-weight: 600; }
.stat-label { display: block; font-size: 11px; color: var(--muted); margin-top: 2px; }

.control-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  margin-bottom: 8px;
}

select#period {
  width: 100%;
  padding: 8px 10px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

#categories { display: flex; flex-direction: column; gap: 4px; }
.cat-row {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
}
.cat-row:hover { background: var(--panel-2); }
.cat-row input { accent-color: var(--accent); }
.cat-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.cat-name { flex: 1; font-size: 14px; }
.cat-count { font-size: 12px; color: var(--muted); }

footer { margin-top: auto; }
#refresh {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
#refresh:hover { filter: brightness(1.1); }
.hint { text-align: center; color: var(--muted); font-size: 12px; margin: 8px 0 0; }

#map { flex: 1; height: 100%; }

/* Popups */
.leaflet-popup-content { margin: 12px 14px; font-size: 14px; line-height: 1.4; }
.popup-cat {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  color: #fff;
  margin-bottom: 6px;
}
.popup-title { font-weight: 600; margin: 0 0 6px; }
.popup-meta { color: #666; font-size: 12px; margin: 6px 0; }
.popup-link { color: var(--accent); text-decoration: none; }
.popup-link:hover { text-decoration: underline; }

@media (max-width: 640px) {
  body { flex-direction: column; }
  #sidebar { width: 100%; height: auto; max-height: 45vh; }
}