:root {
  --bg-main: #0b0f19;
  --bg-card: #151d30;
  --bg-card-hover: #1c263e;
  --border-color: #23304d;
  --border-subtle: #1a233a;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  font-size: 28px;
  background-color: rgba(59, 130, 246, 0.15);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sheet-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  background-color: rgba(16, 185, 129, 0.1);
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background-color: #2563eb;
  transform: translateY(-1px);
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.kpi-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.kpi-subtext {
  font-size: 12px;
  color: var(--text-dim);
}

.kpi-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.kpi-badge.positive {
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.kpi-badge.negative {
  background-color: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Chart Section */
.chart-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 28px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.chart-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.selector-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-right: 8px;
}

.fund-dropdown {
  background-color: #0f172a;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  max-width: 420px;
}

.fund-dropdown:focus {
  border-color: var(--accent-blue);
}

.category-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background-color: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
  text-transform: uppercase;
}

.timeframe-buttons {
  display: flex;
  gap: 4px;
  background-color: #0f172a;
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.tf-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tf-btn:hover {
  color: #fff;
}

.tf-btn.active {
  background-color: var(--accent-blue);
  color: #fff;
}

/* Markers Legend */
.markers-legend {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 10px 14px;
  background-color: rgba(15, 23, 42, 0.6);
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  font-size: 12px;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-symbol {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.chart-wrapper {
  position: relative;
  min-height: 440px;
  width: 100%;
}

.plotly-container {
  width: 100%;
  height: 440px;
}

/* Details Section & Tabs */
.details-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 32px;
}

.tabs-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 20px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.03);
}

.tab-btn.active {
  color: #fff;
  background-color: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Tables */
.table-card {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background-color: var(--bg-card-hover);
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

.fund-name-cell {
  max-width: 280px;
}

.fund-title {
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fund-isin {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
}

.table-filter-bar {
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.btn-table-view {
  background-color: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-table-view:hover {
  background-color: var(--accent-blue);
  color: #fff;
}

/* Allocation View */
.allocation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

@media (max-width: 800px) {
  .allocation-grid {
    grid-template-columns: 1fr;
  }
}

.allocation-card h3 {
  font-size: 16px;
  margin-bottom: 16px;
  color: #fff;
}

.bar-item {
  margin-bottom: 14px;
}

.bar-header {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 6px;
}

.bar-progress {
  height: 10px;
  background-color: #0f172a;
  border-radius: 5px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.4s ease;
}

/* Footer */
.footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  padding-top: 16px;
}

.footer code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent-cyan);
}