:root {
  --bg: #f5f6f8;
  --bg-card: #ffffff;
  --bg-elevated: #fafbfc;
  --text: #1a202c;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --primary: #2c5282;
  --primary-light: #4299e1;
  --success: #38a169;
  --warning: #dd6b20;
  --danger: #e53e3e;
  --info: #3182ce;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --radius: 10px;
  --radius-sm: 6px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
}

h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 0.95rem; color: var(--text); }

a { color: var(--primary); }
code { font-family: var(--font-mono); background: var(--bg-elevated); padding: 1px 5px; border-radius: 4px; font-size: 0.85em; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 1.8rem; }
.subtitle { margin: 2px 0 0; color: var(--text-muted); font-size: 0.85rem; }
.topbar-meta { font-size: 0.8rem; }
.muted { color: var(--text-muted); }

/* Tabs */
.tabs {
  display: flex;
  gap: 2px;
  padding: 0 24px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tab {
  padding: 12px 18px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-family: inherit;
  font-weight: 500;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Main */
main { padding: 20px 24px 40px; max-width: 1400px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* KPI grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.kpi {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--shadow);
}
.kpi-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; font-weight: 500; }
.kpi-value { font-size: 1.5rem; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.kpi-sub { font-size: 0.8rem; color: var(--text-muted); }
.kpi-wide { grid-column: span 2; }
.progress {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin: 6px 0 4px;
}
.progress-bar {
  height: 100%;
  background: var(--primary);
  transition: width 0.3s;
  width: 0%;
}
.progress-bar.warning { background: var(--warning); }
.progress-bar.danger { background: var(--danger); }

@media (max-width: 680px) {
  .kpi-wide { grid-column: span 1; }
}

/* Charts */
.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}
.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  min-height: 320px;
  display: flex;
  flex-direction: column;
}
.chart-card h3 { margin-bottom: 12px; }
.chart-card canvas { flex: 1; min-height: 260px; max-height: 400px; }
.chart-card-full { grid-column: 1 / -1; }

@media (max-width: 900px) {
  .chart-row { grid-template-columns: 1fr; }
}

/* Summary table */
.summary-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.summary-table-wrap h3 { margin-bottom: 10px; }
table.summary-table, table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
table.summary-table th, table.data-table th {
  text-align: left;
  padding: 8px 10px;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
table.summary-table td, table.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}
table.summary-table tbody tr:last-child td, table.data-table tbody tr:last-child td { border-bottom: none; }
table.summary-table tfoot td {
  font-weight: 600;
  border-top: 2px solid var(--border-strong);
  padding-top: 10px;
}
th.num, td.num { text-align: right; }

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  align-items: center;
}
.filters label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}
.filters label.checkbox { flex-direction: row; align-items: center; gap: 6px; margin-top: 14px; }
.filters select, .filters input[type="search"] {
  padding: 6px 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 0.85rem;
  font-family: inherit;
  min-width: 140px;
  color: var(--text);
}
.filters select:focus, .filters input:focus { outline: 2px solid var(--primary-light); outline-offset: -1px; }

/* Voci groups */
.voci-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.voci-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.voci-group-header:hover { background: #f0f2f5; }
.voci-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
}
.voci-group-title .color-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.voci-group-totals { font-size: 0.85rem; color: var(--text-muted); font-variant-numeric: tabular-nums; display: flex; gap: 18px; }
.voci-group-totals strong { color: var(--text); }
.voci-group-body { overflow-x: auto; }
.voci-group.collapsed .voci-group-body { display: none; }
.voci-group .chevron { transition: transform 0.15s; }
.voci-group.collapsed .chevron { transform: rotate(-90deg); }

table.voci {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
table.voci th, table.voci td {
  padding: 7px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.voci th {
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-elevated);
}
table.voci td.num, table.voci th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.voci tr.nulla { opacity: 0.5; font-style: italic; }

.badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 0.7rem;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
  margin-right: 4px;
}
.badge-info { background: #e6f2ff; color: var(--info); border-color: #bfdcff; }
.badge-warning { background: #fff7ed; color: var(--warning); border-color: #fed7aa; }
.badge-danger { background: #fef2f2; color: var(--danger); border-color: #fecaca; }

/* Note list */
.note-list { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.note-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--info);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.note-item.warning { border-left-color: var(--warning); }
.note-item.danger { border-left-color: var(--danger); }
.note-item.info { border-left-color: var(--info); }
.note-item h4 { margin: 0 0 4px; font-size: 0.95rem; display: flex; align-items: center; gap: 8px; }
.note-item .note-area { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.note-item p { margin: 6px 0 0; font-size: 0.88rem; color: var(--text); }

/* Empty states */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}
.empty-state h3 { margin-bottom: 8px; }

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
  font-size: 0.8rem;
}

/* Floating action button */
.fab {
  position: fixed;
  bottom: 22px;
  right: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px 12px 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 6px 16px rgba(44, 82, 130, 0.3);
  cursor: pointer;
  z-index: 50;
  transition: transform 0.15s, box-shadow 0.15s;
}
.fab:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(44, 82, 130, 0.4); }
.fab-icon { font-size: 1.3rem; font-weight: 400; line-height: 1; }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal[hidden] { display: none; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(2px);
}
.modal-dialog {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 1.05rem; }
.modal-close {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0 4px;
}
.modal-body {
  padding: 18px 20px;
  overflow-y: auto;
  flex: 1;
}

/* Upload form */
.upload-form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; }
.field > span { font-weight: 600; color: var(--text); font-size: 0.8rem; }
.field input[type="file"], .field input[type="text"] {
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.88rem;
}
.radios { display: flex; gap: 16px; padding-top: 4px; }
.radios label { display: flex; align-items: center; gap: 6px; font-weight: 400; font-size: 0.88rem; cursor: pointer; }

.form-actions { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.btn-primary, .btn-secondary {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: #224166; }
.btn-primary:disabled { background: var(--border-strong); cursor: not-allowed; }
.btn-secondary { background: var(--bg-elevated); color: var(--text); border: 1px solid var(--border-strong); }
.btn-secondary:hover { background: #eef0f3; }

.preview-summary {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin: 12px 0;
  font-size: 0.85rem;
}
.preview-summary dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0; }
.preview-summary dt { color: var(--text-muted); font-weight: 500; }
.preview-summary dd { margin: 0; font-variant-numeric: tabular-nums; }

.preview-comparator {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 12px;
}
.preview-comparator h4 { margin: 0 0 8px; font-size: 0.9rem; }
.preview-comparator table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.preview-comparator th, .preview-comparator td { text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--border); }
.preview-comparator td.num, .preview-comparator th.num { text-align: right; font-variant-numeric: tabular-nums; }
.preview-comparator .scost-neg { color: var(--success); }
.preview-comparator .scost-pos { color: var(--warning); font-weight: 600; }

.json-wrap { margin-top: 12px; }
.json-toolbar { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.preview-json {
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.45;
  max-height: 380px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

/* Copertura stato */
.cov-stato { display: inline-flex; align-items: center; gap: 6px; font-size: 0.75rem; }
.cov-stato-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.cov-ok .cov-stato-dot { background: var(--success); }
.cov-parz .cov-stato-dot { background: var(--warning); }
.cov-scop .cov-stato-dot { background: var(--text-muted); }

/* Contratti */
.contratti-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.contratti-header h2 { margin-bottom: 4px; }
.contratti-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.contratti-filters select {
  padding: 7px 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  background: var(--bg-card);
  font-family: inherit;
  min-width: 140px;
}

.contratti-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.contratto-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow 0.15s, transform 0.15s;
}
.contratto-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-1px); }

.ctr-card-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}
.ctr-card-title {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}
.ctr-card-title h3 { font-size: 0.95rem; line-height: 1.3; margin: 0; }
.ctr-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.ctr-card-meta span { display: inline-flex; align-items: center; gap: 4px; }

.ctr-stato, .ctr-rischio {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
  white-space: nowrap;
}
.ctr-stato-bozza { background: #f1f5f9; color: var(--text-muted); }
.ctr-stato-firmato { background: #e0e7ff; color: #3730a3; }
.ctr-stato-in_esecuzione { background: #dcfce7; color: #166534; }
.ctr-stato-chiuso { background: #e2e8f0; color: var(--text-muted); }
.ctr-stato-disdettato { background: #fee2e2; color: #991b1b; }

.ctr-rischio-basso { background: #dcfce7; color: #166534; }
.ctr-rischio-medio { background: #fef3c7; color: #92400e; }
.ctr-rischio-alto { background: #fee2e2; color: #991b1b; }

.ctr-score {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0 0;
}
.ctr-score-stars { color: #f59e0b; letter-spacing: 1px; font-size: 1rem; line-height: 1; }
.ctr-score-num { font-size: 0.8rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }

.ctr-card-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; }

.ctr-section h4 {
  margin: 0 0 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 600;
}
.ctr-valutazione { font-size: 0.85rem; line-height: 1.5; color: var(--text); margin: 0; }

.ctr-procon {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.ctr-procon ul { margin: 0; padding-left: 18px; font-size: 0.82rem; line-height: 1.4; }
.ctr-procon li { margin-bottom: 3px; }
.ctr-pro h4 { color: var(--success); }
.ctr-contro h4 { color: var(--warning); }

.ctr-clausole { display: flex; flex-direction: column; gap: 6px; }
.ctr-clausola {
  display: flex;
  gap: 8px;
  font-size: 0.8rem;
  padding: 6px 8px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--border-strong);
}
.ctr-clausola-alta { border-left-color: var(--danger); }
.ctr-clausola-media { border-left-color: var(--warning); }
.ctr-clausola-bassa { border-left-color: var(--text-muted); }
.ctr-clausola-titolo { font-weight: 600; color: var(--text); }
.ctr-clausola-desc { color: var(--text-muted); }

.ctr-redflag {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 0.8rem;
}
.ctr-redflag h4 { color: var(--danger); margin: 0 0 4px; font-size: 0.75rem; text-transform: uppercase; }
.ctr-redflag ul { margin: 0; padding-left: 18px; line-height: 1.4; }

.ctr-card-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: var(--bg-elevated);
}
.ctr-card-footer a {
  font-size: 0.82rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}
.ctr-card-footer a:hover { text-decoration: underline; }
.ctr-card-footer .btn-ghost {
  background: transparent;
  border: 1px solid var(--border-strong);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
  color: var(--text);
}
.ctr-card-footer .btn-ghost:hover { background: var(--bg-card); }

/* Contratto preview modal */
.ctr-preview-wrap { font-size: 0.85rem; }
.ctr-preview-wrap h4 { margin: 10px 0 4px; font-size: 0.8rem; }
.ctr-preview-wrap ul { padding-left: 20px; margin: 4px 0 6px; }
.ctr-preview-wrap .ctr-clausola { margin-bottom: 4px; }

/* Mobile tweaks */
@media (max-width: 600px) {
  .topbar { padding: 12px 14px; }
  .tabs { padding: 0 14px; }
  main { padding: 14px; }
  h1 { font-size: 1.15rem; }
  .kpi-value { font-size: 1.25rem; }
  .voci-group-totals { flex-wrap: wrap; gap: 8px; font-size: 0.75rem; }
  .fab-label { display: none; }
  .fab { padding: 14px; }
  .modal-dialog { max-height: 95vh; }
}