:root {
  --bg:          #0a0f1e;
  --bg-card:     #111827;
  --bg-sidebar:  #0d1424;
  --border:      #1f2937;
  --accent:      #6366f1;
  --accent-glow: rgba(99,102,241,0.25);
  --accent2:     #22d3ee;
  --success:     #10b981;
  --warning:     #f59e0b;
  --danger:      #ef4444;
  --text:        #f1f5f9;
  --text-muted:  #64748b;
  --text-sub:    #94a3b8;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --transition:  0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  font-size: 14px;
}

/* ── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  width: 240px;
  min-height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: grid; place-items: center;
  font-weight: 700; font-size: 18px;
  box-shadow: 0 0 16px var(--accent-glow);
}

.brand-name { font-weight: 700; font-size: 15px; }
.brand-sub  { font-size: 11px; color: var(--text-muted); }

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-sub);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}

.nav-item:hover {
  background: rgba(99,102,241,0.12);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(99,102,241,0.3);
}

.nav-icon { font-size: 16px; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px; height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

@keyframes pulse-badge {
  0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239,68,68,0.6); }
  50%      { transform: scale(1.1); box-shadow: 0 0 0 5px rgba(239,68,68,0); }
}

/* ── Main ───────────────────────────────────────────────────────────────── */
.main-content {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  padding: 24px 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--text), var(--text-sub));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.content-body { padding: 24px 32px 40px; }

/* ── KPI Cards ──────────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.kpi-icon  { font-size: 24px; margin-bottom: 10px; }
.kpi-value { font-size: 28px; font-weight: 700; line-height: 1; }
.kpi-label { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.kpi-delta { font-size: 11px; color: var(--success); margin-top: 4px; }

.kpi-card.accent { border-color: rgba(99,102,241,0.4); }
.kpi-card.accent .kpi-value { color: var(--accent); }

.kpi-card.success { border-color: rgba(16,185,129,0.4); }
.kpi-card.success .kpi-value { color: var(--success); }

.kpi-card.warning { border-color: rgba(245,158,11,0.4); }
.kpi-card.warning .kpi-value { color: var(--warning); }

.kpi-card.danger  { border-color: rgba(239,68,68,0.4); }
.kpi-card.danger  .kpi-value { color: var(--danger); }

/* ── Charts grid ────────────────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.chart-card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chart-wrap { position: relative; height: 220px; }

/* ── Table ──────────────────────────────────────────────────────────────── */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.table-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
}

tbody tr {
  border-bottom: 1px solid rgba(31,41,55,0.6);
  transition: background var(--transition);
}

tbody tr:hover { background: rgba(99,102,241,0.05); }
tbody tr:last-child { border-bottom: none; }

td {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-sub);
  vertical-align: middle;
}

/* ── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.badge-positif   { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-neutre    { background: rgba(100,116,139,0.2);  color: var(--text-muted); }
.badge-negatif   { background: rgba(239,68,68,0.15);   color: var(--danger); }
.badge-haute     { background: rgba(239,68,68,0.15);   color: var(--danger); }
.badge-moyenne   { background: rgba(245,158,11,0.15);  color: var(--warning); }
.badge-faible    { background: rgba(16,185,129,0.15);  color: var(--success); }
.badge-pret      { background: rgba(99,102,241,0.2);   color: var(--accent); }
.badge-default   { background: rgba(100,116,139,0.15); color: var(--text-muted); }

/* ── Filters ────────────────────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-select, .filter-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color var(--transition);
}

.filter-select:focus, .filter-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #4f46e5;
  box-shadow: 0 0 12px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-sub);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Section header ─────────────────────────────────────────────────────── */
.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ── Category group ─────────────────────────────────────────────────────── */
.cat-group { margin-bottom: 28px; }
.cat-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
  padding: 4px 12px;
  background: var(--accent-glow);
  border-radius: 20px;
  border: 1px solid rgba(99,102,241,0.3);
}

/* ── Need card ──────────────────────────────────────────────────────────── */
.need-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.need-card:hover {
  border-color: rgba(99,102,241,0.4);
  box-shadow: 0 0 16px rgba(99,102,241,0.08);
}

.need-text { font-size: 14px; color: var(--text); margin-bottom: 10px; line-height: 1.6; }

.need-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Chat bubble ─────────────────────────────────────────────────────────── */
.msg-list { display: flex; flex-direction: column; gap: 12px; }

.msg {
  display: flex;
  gap: 12px;
  max-width: 80%;
}

.msg.user   { align-self: flex-end; flex-direction: row-reverse; }
.msg.assistant { align-self: flex-start; }

.msg-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.6;
}

.user      .msg-bubble { background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.assistant .msg-bubble { background: var(--bg-card); border: 1px solid var(--border); border-bottom-left-radius: 4px; }

.msg-bubble.fallback { border-color: var(--warning); background: rgba(245,158,11,0.08); }

.msg-time { font-size: 10px; color: var(--text-muted); margin-top: 4px; }

/* ── Pagination ──────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 24px;
}

.page-btn {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-sub);
  text-decoration: none;
  font-size: 13px;
  transition: all var(--transition);
}

.page-btn:hover, .page-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Empty state ─────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { font-size: 14px; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }