:root {
  --bg: #0b1220;
  --bg-elevated: #111827;
  --bg-panel: #1f2937;
  --border: #334155;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #22c55e;
  --accent-dark: #16a34a;
  --accent-2: #38bdf8;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 12px;
  --sidebar-width: 240px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent-2); text-decoration: none; }
.muted { color: var(--muted); }

.app-shell { display: grid; grid-template-columns: var(--sidebar-width) 1fr; min-height: 100vh; }
.app-main { min-width: 0; display: flex; flex-direction: column; }
.app-sidebar { background: var(--bg-elevated); border-right: 1px solid var(--border); display: flex; flex-direction: column; min-height: 100vh; position: sticky; top: 0; height: 100vh; }
.sidebar-brand { display: flex; align-items: center; gap: .65rem; padding: 1rem; border-bottom: 1px solid var(--border); }
.logo-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px rgba(34,197,94,.6); }
.logo-dot.lg { width: 18px; height: 18px; }
.sidebar-nav { padding: .75rem; flex: 1; overflow: auto; }
.sidebar-section { margin: .75rem 0 .25rem .5rem; font-size: .72rem; text-transform: uppercase; color: var(--muted); }
.sidebar-link { display: block; width: 100%; padding: .6rem .75rem; border: 0; background: transparent; color: var(--muted); text-align: left; border-radius: 8px; cursor: pointer; font: inherit; }
.sidebar-link:hover, .sidebar-link.active { background: rgba(56,189,248,.12); color: var(--text); }
.sidebar-bottom { padding: 1rem; border-top: 1px solid var(--border); }
.sidebar-user small { display: block; color: var(--muted); }

.page-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border); }
.page-header h1 { margin: 0; font-size: 1.4rem; }
.page-content { padding: 1.25rem 1.5rem 2rem; }
.header-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.btn { border: 0; border-radius: 8px; padding: .55rem .9rem; cursor: pointer; font-weight: 600; }
.btn-primary { background: var(--accent); color: #052e16; }
.btn-secondary { background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { width: 100%; }

.toolbar { margin-bottom: 1rem; }
.toolbar input, .toolbar select { background: var(--bg-panel); border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: .55rem .75rem; min-width: 220px; }

.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: .75rem; border-bottom: 1px solid var(--border); text-align: left; font-size: .92rem; }
.data-table th { background: var(--bg-panel); color: var(--muted); }
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .75rem; background: rgba(56,189,248,.15); color: var(--accent-2); }
.badge.success { background: rgba(34,197,94,.15); color: var(--accent); }
.badge.warning { background: rgba(245,158,11,.15); color: var(--warning); }
.badge.danger { background: rgba(239,68,68,.15); color: var(--danger); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat-card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.stat-card strong { display: block; font-size: 1.5rem; margin-top: .35rem; }
.stat-card small { display: block; margin-top: .35rem; font-size: .78rem; }
.text-danger { color: var(--danger); }

.dashboard-page .stats-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.chart-panel-wide { grid-column: 1 / -1; }
.chart-wrap { position: relative; height: 280px; }
.chart-wrap-donut { height: 220px; }
.chart-legend, .chart-meta {
  padding: 0 1rem 1rem;
  display: grid;
  gap: .35rem;
  font-size: .85rem;
  color: var(--muted);
}
.legend-item { display: flex; align-items: center; gap: .5rem; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.chart-meta code { font-size: .72rem; word-break: break-all; }

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.table-wrap.compact .data-table th,
.table-wrap.compact .data-table td { padding: .55rem .65rem; font-size: .84rem; }

.panel-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.panel { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); }
.panel-head { padding: .85rem 1rem; border-bottom: 1px solid var(--border); }
.panel-head h2 { margin: 0; font-size: 1rem; }
.panel-body { padding: 1rem; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .75rem; }
label { display: flex; flex-direction: column; gap: .35rem; font-size: .85rem; color: var(--muted); }
input, select, textarea { background: var(--bg-panel); border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: .55rem .65rem; font: inherit; }
.checkbox { flex-direction: row; align-items: center; gap: .5rem; }
.form-error { color: var(--danger); font-size: .85rem; }
.form-sections fieldset { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 1rem; padding: 1rem; }
.form-sections legend { padding: 0 .5rem; color: var(--accent-2); }

.login-page { display: grid; place-items: center; min-height: 100vh; background: radial-gradient(circle at top, rgba(56,189,248,.12), transparent 40%), var(--bg); }
.login-card { width: min(420px, 92vw); background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px; padding: 1.5rem; }
.login-header { text-align: center; margin-bottom: 1rem; }
.login-form label { margin-bottom: .75rem; }

.modal { border: 1px solid var(--border); border-radius: 12px; background: var(--bg-elevated); color: var(--text); padding: 0; max-width: 92vw; }
.modal-lg { width: min(760px, 92vw); }
.modal-body { padding: 1.25rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }

.kanban { display: grid; gap: .75rem; }
.prospect-card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 10px; padding: .85rem; cursor: pointer; }
.prospect-card:hover { border-color: var(--accent-2); }

.lines-table { width: 100%; border-collapse: collapse; margin-top: .75rem; }
.lines-table th, .lines-table td { padding: .45rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.lines-table input, .lines-table select { width: 100%; min-width: 70px; padding: .4rem; }
.doc-totals { margin: 1rem 0; text-align: right; font-size: 1rem; }
.doc-totals strong { font-size: 1.2rem; color: var(--accent); }
.verifactu-panel { margin-top: 1rem; }
.verifactu-body code { word-break: break-all; font-size: .75rem; }
#vf-qr { margin-top: .75rem; background: #fff; padding: .5rem; border-radius: 8px; }

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .app-sidebar { position: static; height: auto; min-height: auto; }
  .charts-grid, .details-grid { grid-template-columns: 1fr; }
  .chart-panel-wide { grid-column: auto; }
}