:root {
  --blue:    #003f7f;
  --blue-lt: #0066cc;
  --red:     #c0392b;
  --green:   #16a34a;
  --gray:    #6b7280;
  --bg:      #f4f6f9;
  --card:    #ffffff;
  --border:  #e5e7eb;
  --text:    #1f2937;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  background: var(--blue);
  color: #fff;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
header h1 { font-size: 1.1rem; font-weight: 700; letter-spacing: .5px; }
header span { font-size: .85rem; opacity: .85; text-align: right; }

.stato {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 80px 24px;
  color: var(--blue);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
}
.stato.errore { color: var(--text); font-weight: 400; }
.stato.errore .spinner { display: none; }
.spinner {
  width: 42px; height: 42px;
  border: 4px solid #d1d5db; border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.controls {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  padding: 20px 32px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.controls label { display: block; font-size: .85rem; color: var(--gray); font-weight: 600; margin-bottom: 4px; }
.controls select {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 12px;
  font-size: .9rem;
  color: var(--text);
  background: #fff;
  cursor: pointer;
  max-width: 100%;
}
.controls select:focus { outline: 2px solid var(--blue-lt); }

#loading { text-align: center; padding: 40px; color: var(--gray); }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 24px 32px 8px;
}
.kpi {
  background: var(--card);
  border-radius: 10px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.kpi .label { font-size: .78rem; color: var(--gray); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.kpi .value { font-size: 1.7rem; font-weight: 700; color: var(--blue); margin-top: 4px; }
.kpi .delta { font-size: .85rem; margin-top: 4px; font-weight: 600; }
.kpi .delta.pos { color: var(--green); }
.kpi .delta.neg { color: var(--red); }
.kpi .delta.sub { color: var(--gray); font-weight: 400; font-size: .8rem; }

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px 32px 24px;
}
.chart-card {
  background: var(--card);
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  padding: 20px 24px 16px;
  min-width: 0;
}
.chart-card.full { grid-column: 1 / -1; }
.chart-card h2 { font-size: .9rem; font-weight: 700; color: var(--blue); margin-bottom: 12px; }
.chart-box { width: 100%; height: 320px; }
.chart-box.tall { height: 380px; }
.chart-card.map-tall { grid-row: span 2; }
.chart-card.map-tall .chart-box { height: 680px; }

.badge {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 20px;
  margin-left: 8px;
  vertical-align: middle;
}

@media (max-width: 768px) {
  header { padding: 10px 16px; flex-direction: column; align-items: flex-start; gap: 2px; }
  header span { text-align: left; }
  .charts-grid { grid-template-columns: 1fr; }
  .chart-card.map-tall { grid-row: auto; }
  .chart-card.map-tall .chart-box { height: 480px; }
  .controls, .kpi-row, .charts-grid { padding-left: 16px; padding-right: 16px; }
  .chart-card { padding: 16px 12px 12px; }
}