:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #1d4ed8;
  --primary-dark: #1e40af;
  --border: #e5e7eb;
  --success: #047857;
  --danger: #b91c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.topbar {
  background: #111827;
  color: #fff;
  padding: 1rem 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.nav a {
  color: #e5e7eb;
  margin-left: 1rem;
}

main.container { padding: 2rem 0 3rem; }

.footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0 2rem;
  color: var(--muted);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header h1 { margin: 0 0 0.25rem; }
.page-header p { margin: 0; color: var(--muted); }

.header-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.section-title {
  margin: 0.5rem 0 0;
  font-size: 1.05rem;
  color: var(--text);
}

.economic-summary .highlight {
  background: #ecfdf5;
  border-radius: 8px;
  padding: 0.25rem 0.5rem;
}

.economic-summary .info-row dt,
.economic-summary .info-row dd {
  color: var(--muted);
  font-size: 0.92rem;
}

.external-costs {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.info-note {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: #eff6ff;
  color: #1e3a8a;
}

.info-note ul {
  margin: 0;
  padding-left: 1.2rem;
}

.external-costs h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.compact-form {
  margin-top: 0.75rem;
  padding: 1rem;
  background: #f9fafb;
  border-radius: 8px;
}

.inline-edit summary {
  cursor: pointer;
  color: var(--primary);
}

.delete-form {
  margin-top: 0.5rem;
}

.button.danger {
  background: #fef2f2;
  border-color: #fecaca;
  color: var(--danger);
}

.button.danger:hover {
  background: #fee2e2;
  text-decoration: none;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.stats-grid,
.detail-grid,
.metrics-grid {
  display: grid;
  gap: 1rem;
}

.stats-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-bottom: 1.5rem; }
.detail-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.metrics-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); margin-top: 1rem; }

.stat-card,
.metric {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.stat-label,
.metric span { color: var(--muted); font-size: 0.9rem; }

.stat-value,
.metric strong { display: block; font-size: 1.6rem; margin-top: 0.25rem; }

.button {
  display: inline-block;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

.button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.button.primary:hover { background: var(--primary-dark); text-decoration: none; }
.button.secondary:hover { text-decoration: none; }

.button.primary.is-disabled,
.button.primary:disabled,
.button.primary[disabled] {
  background: #9ca3af;
  border-color: #9ca3af;
  color: #fff;
  opacity: 0.9;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

.button.primary.is-disabled:hover,
.button.primary:disabled:hover,
.button.primary[disabled]:hover,
.button.primary.is-disabled:focus,
.button.primary:disabled:focus,
.button.primary[disabled]:focus {
  background: #9ca3af;
  border-color: #9ca3af;
  color: #fff;
  text-decoration: none;
  box-shadow: none;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 0.85rem;
}

.badge-demo {
  background: #fef3c7;
  color: #92400e;
  font-weight: 600;
}

.provenance-line {
  margin-top: 0.35rem;
}

.form-hint {
  margin: 0.35rem 0 0;
  color: #92400e;
  font-size: 0.9rem;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem 0.75rem;
  align-items: center;
  margin-top: 0.5rem;
}

.checkbox-grid input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin: 0;
}

.checkbox-grid label {
  font-weight: 500;
}

.checkbox-disabled {
  opacity: 0.72;
}

.source-group {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin: 0.75rem 0 0;
}

.source-group legend {
  padding: 0 0.35rem;
  font-weight: 600;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group.full-width,
.form-actions.full-width { grid-column: 1 / -1; }

input, select, textarea {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}

.detail-list { margin: 0; }
.detail-list div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; }

.summary-text {
  background: #eff6ff;
  border-left: 4px solid var(--primary);
  padding: 0.85rem 1rem;
  border-radius: 8px;
}

.warnings {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: #fff7ed;
}

.warnings.danger { background: #fef2f2; }

.empty-state,
.meta { color: var(--muted); }

.history-list {
  margin: 0;
  padding-left: 1.2rem;
}

@media (max-width: 720px) {
  .page-header,
  .panel-header,
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  .detail-list div { grid-template-columns: 1fr; }
}

/* Pulsante WhatsApp disabilitato: override stili nativi del browser su <button>. */
button.button.primary.is-disabled:disabled,
button.button.primary.is-disabled:disabled:hover,
button.button.primary.is-disabled:disabled:focus,
button.button.primary.is-disabled:disabled:active {
  background-color: #9ca3af !important;
  border-color: #9ca3af !important;
  color: #ffffff !important;
  cursor: not-allowed;
  pointer-events: none;
  opacity: 0.9;
  box-shadow: none;
}