:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161822;
  --bg-card: #1c1e2e;
  --bg-hover: #252840;
  --border: #2a2d42;
  --text-primary: #e4e6f0;
  --text-secondary: #8b8fa3;
  --text-muted: #5a5e73;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99,102,241,0.15);
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --company-color: #6366f1;
  --person-color: #22c55e;
  --ownership-color: #f59e0b;
  --role-color: #8b8fa3;
  --sidebar-width: 260px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  overflow: hidden;
}

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

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 100;
  transition: transform .3s;
}
.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}
.logo .material-icons-round { font-size: 28px; }
.nav-menu { list-style: none; padding: 0.75rem; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all .2s;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 2px;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
}
.nav-item .material-icons-round { font-size: 20px; }
.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
}
.export-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: all .2s;
}
.export-btn:hover { background: var(--border); color: var(--text-primary); }

/* Main Content */
.main-content {
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  padding: 2rem;
}
.page { display: none; }
.page.active { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: 1.75rem; font-weight: 700; }
.page-header .subtitle { color: var(--text-secondary); margin-top: 0.25rem; font-size: 0.9rem; }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.stat-icon.blue { background: rgba(59,130,246,0.15); color: var(--info); }
.stat-icon.green { background: rgba(34,197,94,0.15); color: var(--success); }
.stat-icon.purple { background: rgba(99,102,241,0.15); color: var(--accent); }
.stat-icon.orange { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-value { font-size: 1.5rem; font-weight: 700; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.card-header h3 { font-size: 0.95rem; font-weight: 600; }
.card-body { padding: 1.25rem; }
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 1rem;
}

/* Lists in cards */
.rank-list { list-style: none; }
.rank-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .15s;
  border-radius: 4px;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}
.rank-item:hover { background: var(--bg-hover); }
.rank-item:last-child { border-bottom: none; }
.rank-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.rank-item:nth-child(1) .rank-num { background: rgba(245,158,11,0.2); color: var(--warning); }
.rank-item:nth-child(2) .rank-num { background: rgba(156,163,175,0.2); color: #9ca3af; }
.rank-item:nth-child(3) .rank-num { background: rgba(180,83,9,0.2); color: #d97706; }
.rank-name { flex: 1; font-size: 0.875rem; }
.rank-value {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

/* Bar chart */
.bar-chart { display: flex; flex-direction: column; gap: 0.5rem; }
.bar-row { display: flex; align-items: center; gap: 0.75rem; font-size: 0.8rem; }
.bar-label { width: 140px; text-align: right; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 0; }
.bar-track { flex: 1; height: 24px; background: var(--bg-hover); border-radius: 4px; overflow: hidden; position: relative; }
.bar-fill { height: 100%; border-radius: 4px; transition: width .6s ease; display: flex; align-items: center; padding-left: 8px; font-size: 0.75rem; font-weight: 600; color: #fff; min-width: fit-content; }
.bar-fill.blue { background: linear-gradient(90deg, var(--info), #60a5fa); }
.bar-fill.purple { background: linear-gradient(90deg, var(--accent), var(--accent-hover)); }
.bar-fill.green { background: linear-gradient(90deg, var(--success), #4ade80); }
.bar-fill.orange { background: linear-gradient(90deg, var(--warning), #fbbf24); }

/* Search */
.search-container { margin-bottom: 1.5rem; }
.search-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  transition: border-color .2s;
}
.search-box:focus-within { border-color: var(--accent); }
.search-box input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  font-family: inherit;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box .material-icons-round { color: var(--text-muted); }
.search-filters {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.filter-btn {
  padding: 0.4rem 1rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  font-family: inherit;
  transition: all .2s;
}
.filter-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Search Results */
.search-results { display: flex; flex-direction: column; gap: 0.5rem; }
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: all .2s;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.result-card:hover { border-color: var(--accent); transform: translateX(4px); }
.result-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.result-icon.company { background: rgba(99,102,241,0.15); color: var(--accent); }
.result-icon.person { background: rgba(34,197,94,0.15); color: var(--success); }
.result-info { flex: 1; }
.result-name { font-weight: 600; font-size: 0.95rem; }
.result-meta { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.15rem; }
.result-badge {
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
}
.badge-aktiv { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-inaktiv { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-gelöscht { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Network */
.network-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.network-search { position: relative; flex: 1; min-width: 200px; }
.network-search input {
  width: 100%;
  padding: 0.6rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  outline: none;
}
.network-search input:focus { border-color: var(--accent); }
.dropdown-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-height: 300px;
  overflow-y: auto;
  z-index: 50;
  display: none;
  box-shadow: var(--shadow);
}
.dropdown-results.show { display: block; }
.dropdown-item {
  padding: 0.6rem 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  transition: background .15s;
}
.dropdown-item:hover { background: var(--bg-hover); }
.dropdown-item .type-badge {
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-weight: 600;
}
.dropdown-item .type-badge.company { background: rgba(99,102,241,0.2); color: var(--accent); }
.dropdown-item .type-badge.person { background: rgba(34,197,94,0.2); color: var(--success); }
.network-controls { display: flex; gap: 0.5rem; }
.network-container {
  display: flex;
  gap: 1rem;
  height: calc(100vh - 280px);
  min-height: 400px;
}
.network-graph {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.network-detail {
  width: 350px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-y: auto;
  padding: 1.25rem;
  flex-shrink: 0;
}
.network-detail.hidden { display: none; }
.network-legend {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.legend-item { display: flex; align-items: center; gap: 0.4rem; }
.legend-dot { width: 12px; height: 12px; border-radius: 50%; }
.legend-dot.company { background: var(--company-color); }
.legend-dot.person { background: var(--person-color); }
.legend-line { width: 24px; height: 3px; border-radius: 2px; }
.legend-line.ownership { background: var(--ownership-color); }
.legend-line.role { background: var(--role-color); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  transition: all .2s;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); border-color: var(--text-muted); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn .material-icons-round { font-size: 18px; }

/* Data Lists */
.data-list { display: flex; flex-direction: column; gap: 0.5rem; }
.data-row {
  display: grid;
  grid-template-columns: 1fr 120px 120px 120px 100px;
  gap: 1rem;
  align-items: center;
  padding: 0.8rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .2s;
  font-size: 0.875rem;
}
.data-row:hover { border-color: var(--accent); transform: translateX(4px); }
.data-row-name { font-weight: 600; }
.data-row-sub { font-size: 0.75rem; color: var(--text-secondary); }
.data-row-header {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: default;
}
.data-row-header:hover { border-color: transparent; transform: none; }
.person-row {
  grid-template-columns: 1fr 100px 100px;
}

/* Detail View */
.detail-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 2rem;
}
.detail-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 32px;
}
.detail-icon.company { background: rgba(99,102,241,0.15); color: var(--accent); }
.detail-icon.person { background: rgba(34,197,94,0.15); color: var(--success); }
.detail-title { font-size: 1.5rem; font-weight: 700; }
.detail-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.25rem; }
.detail-actions { margin-top: 0.5rem; display: flex; gap: 0.5rem; }
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.detail-field { display: flex; flex-direction: column; padding: 0.6rem 0; }
.detail-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.25rem; }
.detail-value { font-size: 0.9rem; }
.detail-section { margin-bottom: 1.5rem; }
.detail-section h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.75rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border); }
.detail-section-network { height: 350px; background: var(--bg-secondary); border-radius: var(--radius); border: 1px solid var(--border); margin-bottom: 1rem; }
.relation-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .15s;
  border-radius: 4px;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}
.relation-item:hover { background: var(--bg-hover); }
.relation-item:last-child { border-bottom: none; }
.relation-role {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  background: var(--bg-hover);
  color: var(--text-secondary);
  white-space: nowrap;
}
.relation-share { font-size: 0.8rem; font-weight: 600; color: var(--warning); margin-left: auto; }
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  margin-bottom: 1rem;
  transition: color .2s;
}
.back-btn:hover { color: var(--accent); }

/* Import */
.import-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
}
.upload-zone:hover { border-color: var(--accent); background: var(--accent-glow); }
.upload-zone.dragover { border-color: var(--accent); background: var(--accent-glow); }
.upload-zone p { margin-top: 0.75rem; color: var(--text-secondary); }
.upload-zone .hint { font-size: 0.8rem; color: var(--text-muted); }
.import-result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}
.import-result.success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--success); }
.import-result.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  overflow-x: auto;
  color: var(--text-secondary);
  white-space: pre;
}

/* Mobile */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 200;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { padding: 1rem; padding-top: 4rem; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .import-container { grid-template-columns: 1fr; }
  .data-row { grid-template-columns: 1fr 80px; }
  .data-row > :nth-child(n+3):not(:last-child) { display: none; }
  .network-container { flex-direction: column; height: auto; }
  .network-graph { min-height: 400px; }
  .network-detail { width: 100%; }
  .person-row { grid-template-columns: 1fr 60px; }
}

/* Status dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}
.status-dot.aktiv { background: var(--success); }
.status-dot.inaktiv { background: var(--warning); }
.status-dot.gelöscht { background: var(--danger); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}
.empty-state .material-icons-round { font-size: 48px; margin-bottom: 1rem; }