:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: #1a2234;
  --bg-card-hover: #222d42;
  --border-color: #2b3648;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-cyan: #06b6d4;
  --gain-green: #10b981;
  --gain-bg: rgba(16, 185, 129, 0.12);
  --loss-red: #ef4444;
  --loss-bg: rgba(239, 68, 68, 0.12);
  --warning-yellow: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.4);
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #374151;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #4b5563;
}

/* Header & Navbar */
header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

.brand-badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-weight: 600;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.market-status-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  background: var(--gain-bg);
  color: var(--gain-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
  transition: all 0.3s ease;
}

.market-status-badge.status-open {
  background: var(--gain-bg);
  color: var(--gain-green);
  border-color: rgba(16, 185, 129, 0.35);
}

.market-status-badge.status-closed {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.market-status-badge.status-closed .pulse-dot {
  animation: none;
  opacity: 0.75;
}

.market-status-badge.status-pre-open {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.35);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
  100% { opacity: 1; transform: scale(1); }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Market Ticker Bar */
.ticker-bar {
  background: #0f172a;
  border-bottom: 1px solid var(--border-color);
  padding: 0.4rem 1.5rem;
  overflow: hidden;
  font-size: 0.8rem;
  white-space: nowrap;
}

.ticker-content {
  display: inline-flex;
  gap: 1.5rem;
  animation: ticker 40s linear infinite;
}

.ticker-content:hover {
  animation-play-state: paused;
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
}

/* Main Container */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  flex: 1;
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-decoration: none;
}

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

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: #3b4559;
}

.btn-success {
  background: var(--gain-green);
  color: #fff;
}
.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: var(--loss-red);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
}

/* Page Header & Top Bar */
.page-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-title h1 {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-title p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* KPI Summary Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-color);
}

.kpi-card.kpi-blue::before { background: var(--accent-blue); }
.kpi-card.kpi-green::before { background: var(--gain-green); }
.kpi-card.kpi-red::before { background: var(--loss-red); }
.kpi-card.kpi-yellow::before { background: var(--warning-yellow); }

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 0.35rem;
}

.kpi-footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

.badge-gain {
  background: var(--gain-bg);
  color: var(--gain-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-loss {
  background: var(--loss-bg);
  color: var(--loss-red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-neutral {
  background: rgba(156, 163, 175, 0.15);
  color: var(--text-secondary);
}

/* Charts Section */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chart-wrapper {
  position: relative;
  height: 280px;
  width: 100%;
}

/* Table Toolbar */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.filter-group {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.2rem;
}

.filter-btn {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 0.35rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

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

.search-box {
  position: relative;
  min-width: 260px;
}

.search-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.45rem 0.75rem 0.45rem 2rem;
  font-size: 0.85rem;
  outline: none;
}

.search-input:focus {
  border-color: var(--accent-blue);
}

.search-icon {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Table */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

th {
  background: #151d2c;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}

th:hover {
  color: var(--text-primary);
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #232c3d;
  white-space: nowrap;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: var(--bg-card-hover);
}

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

.font-mono {
  font-family: var(--font-mono);
}

.stock-symbol {
  font-weight: 700;
  color: #60a5fa;
  display: block;
}

.stock-company {
  font-size: 0.75rem;
  color: var(--text-muted);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bes-bar-wrapper {
  width: 80px;
  height: 6px;
  background: #374151;
  border-radius: 3px;
  overflow: hidden;
  margin-top: 4px;
}

.bes-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease-in-out;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 540px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.2s ease-in-out;
}

.modal-backdrop.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
}
.modal-close:hover { color: var(--text-primary); }

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-secondary);
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent-blue);
}

/* Drag & Drop Upload Zone */
.dropzone {
  border: 2px dashed #374151;
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.05);
}

.dropzone-icon {
  font-size: 2.5rem;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-blue);
  color: var(--text-primary);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  font-size: 0.875rem;
  animation: slideIn 0.3s ease;
  min-width: 280px;
}

.toast.toast-success { border-left-color: var(--gain-green); }
.toast.toast-error { border-left-color: var(--loss-red); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: auto;
}