:root {
  --bg: #0e0f13;
  --panel: rgba(20, 22, 28, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8e8ec;
  --muted: #9a9cab;
  --accent: #ff8a2a;
  --accent-text: #1a1206;
  --danger: #ff5a5a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

#map { position: fixed; inset: 0; background: var(--bg); }

.heat-canvas { position: absolute; pointer-events: none; }

/* Mappa OSM chiara trasformata in una mappa scura e desaturata */
.dark-tiles { filter: invert(1) hue-rotate(180deg) grayscale(0.85) brightness(0.75) contrast(1.15); }

#panel {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: 12px;
  width: 280px;
  max-width: calc(100vw - 24px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  backdrop-filter: blur(8px);
  z-index: 1000;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

#panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
}

#panel h1 { margin: 0; font-size: 16px; font-weight: 650; letter-spacing: 0.2px; }

#panel .body { padding: 0 12px 12px; display: grid; gap: 10px; }
#panel.collapsed .body { display: none; }
#panel.collapsed #toggle { transform: rotate(-90deg); }

.row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.row.col { flex-direction: column; align-items: stretch; }
.row span { color: var(--muted); }

select, input[type="text"] {
  background: #1b1d24;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  font: inherit;
}

.stats {
  display: grid;
  gap: 4px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
}
.stats div { display: flex; justify-content: space-between; }
.stats .lbl { color: var(--muted); }
.stats .val { font-variant-numeric: tabular-nums; font-weight: 600; }

.actions { display: grid; grid-template-columns: 1fr; gap: 6px; }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #23262f;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 8px 10px;
  font: inherit;
  cursor: pointer;
}
button:hover, .btn:hover { background: #2b2f3a; }
button:disabled { opacity: 0.55; cursor: progress; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: transparent; font-weight: 600; }
button.primary:hover { background: #ff9c48; }
button.danger { color: var(--danger); width: 100%; margin-top: 8px; }
button.icon { background: none; border: none; padding: 4px 6px; font-size: 16px; transition: transform 0.15s; }

#status { margin: 0; min-height: 1.4em; color: var(--muted); font-size: 13px; }
#status.error { color: var(--danger); }

details summary { cursor: pointer; color: var(--muted); }
details[open] summary { margin-bottom: 8px; }
.check { display: flex; gap: 8px; align-items: flex-start; margin-top: 10px; cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--accent); }
.check small { color: var(--muted); }
.hint { color: var(--muted); font-size: 12px; margin: 8px 0 0; }

#drop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(14, 15, 19, 0.75);
  z-index: 2000;
  pointer-events: none;
}
#drop div {
  border: 2px dashed var(--accent);
  border-radius: 16px;
  padding: 32px 40px;
  font-size: 18px;
}
body.dragging #drop { display: flex; }

.leaflet-container { background: var(--bg); font: inherit; }
.leaflet-control-attribution { background: rgba(14, 15, 19, 0.7) !important; color: var(--muted); }
.leaflet-control-attribution a { color: #c9c9d4; }

@media (max-width: 600px) {
  #panel { left: 8px; right: 8px; width: auto; max-width: none; top: max(8px, env(safe-area-inset-top)); }
}