@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-primary: #080b0e;
  --bg-secondary: #12161c;
  --bg-tertiary: #1b2028;
  --bg-glass: rgba(18, 22, 28, 0.7);
  --border-color: #242c36;
  --border-glow: rgba(36, 44, 54, 0.4);
  
  --text-primary: #eaecef;
  --text-secondary: #848e9c;
  --text-muted: #5e6673;

  --accent-green: #02c076;
  --accent-green-glow: rgba(2, 192, 118, 0.2);
  --accent-green-bg: rgba(2, 192, 118, 0.08);

  --accent-red: #f6465d;
  --accent-red-glow: rgba(246, 70, 93, 0.2);
  --accent-red-bg: rgba(246, 70, 93, 0.08);

  --accent-gold: #f0b90b;
  --accent-gold-bg: rgba(240, 185, 11, 0.1);
  --accent-blue: #2d8cf0;
  --accent-blue-bg: rgba(45, 140, 240, 0.1);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Main Layout Grid */

.app-container {
  display: grid;
  grid-template-rows: 60px 1fr;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.header {
  grid-row: 1;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 10;
}

.main-layout {
  grid-row: 2;
  display: grid;
  grid-template-columns: 320px 1fr 340px;
  height: calc(100vh - 60px);
  overflow: hidden;
}

@media (max-width: 1200px) {
  .main-layout {
    grid-template-columns: 280px 1fr;
  }
  .right-panel {
    display: none; /* Hide order book/logs on smaller layouts or handle responsively */
  }
}

/* Side Panels & Columns */

.sidebar {
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
}

.center-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  background-color: var(--bg-primary);
}

.right-panel {
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
}

/* Panel Header styling */

.panel-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* UI Elements & Sections */

.sidebar-section {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.section-heading {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Typography & Labels */

.value-mono {
  font-family: var(--font-mono);
  font-weight: 500;
}

.green-text {
  color: var(--accent-green) !important;
}

.red-text {
  color: var(--accent-red) !important;
}

.gold-text {
  color: var(--accent-gold) !important;
}

.blue-text {
  color: var(--accent-blue) !important;
}

/* Form Controls */

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-label span.val {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.select-input, .text-input {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 10px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border var(--transition-fast);
}

.select-input:focus, .text-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(45, 140, 240, 0.2);
}

/* Range input styling */

.range-input {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  outline: none;
  margin: 10px 0;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-blue);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(45, 140, 240, 0.6);
  transition: transform var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Checkbox switches */

.switch-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  cursor: pointer;
}

.switch-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-color);
  transition: var(--transition-normal);
  border-radius: 20px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-secondary);
  transition: var(--transition-normal);
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-blue);
}

input:checked + .slider:before {
  transform: translateX(18px);
  background-color: var(--text-primary);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  font-family: var(--font-sans);
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(45, 140, 240, 0.3);
}

.btn-primary:hover {
  background-color: #409eff;
  box-shadow: 0 4px 16px rgba(45, 140, 240, 0.5);
  transform: translateY(-1px);
}

.btn-success {
  background-color: var(--accent-green);
  color: #fff;
  box-shadow: 0 4px 12px rgba(2, 192, 118, 0.3);
}

.btn-success:hover {
  background-color: #00d682;
  box-shadow: 0 4px 16px rgba(2, 192, 118, 0.5);
  transform: translateY(-1px);
}

.btn-danger {
  background-color: var(--accent-red);
  color: #fff;
  box-shadow: 0 4px 12px rgba(246, 70, 93, 0.3);
}

.btn-danger:hover {
  background-color: #ff576f;
  box-shadow: 0 4px 16px rgba(246, 70, 93, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  border-color: var(--text-muted);
}

.btn:active {
  transform: translateY(1px);
}

/* Header Metrics */

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.logo-glow {
  color: var(--accent-blue);
  text-shadow: 0 0 10px rgba(45, 140, 240, 0.5);
}

.metrics-strip {
  display: flex;
  align-items: center;
  gap: 24px;
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.metric-value {
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-mono);
}

/* Live Status Pulse Badge */

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-secondary);
}

.status-dot.active {
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse-green 1.5s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* Dashboard Panels Layout */

.dashboard-grid {
  display: grid;
  grid-template-rows: 1fr 280px;
  height: 100%;
}

.chart-area {
  grid-row: 1;
  position: relative;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.bottom-area {
  grid-row: 2;
  background-color: var(--bg-secondary);
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border-color);
}

/* Tabs */

.tabs-header {
  display: flex;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 10px;
}

.tab-btn {
  padding: 12px 18px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}

/* Chart overlay panels */

.chart-controls {
  position: absolute;
  top: 15px;
  left: 15px;
  z-index: 5;
  display: flex;
  gap: 8px;
}

.chart-control-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: all var(--transition-fast);
}

.chart-control-btn:hover {
  background-color: var(--border-color);
  border-color: var(--text-muted);
}

.chart-control-btn.active {
  background-color: var(--accent-blue-bg);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* Order Book Component */

.orderbook-container {
  display: flex;
  flex-direction: column;
  height: 50%;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.orderbook-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 11px;
}

.orderbook-table th {
  color: var(--text-secondary);
  text-align: right;
  font-weight: 500;
  padding: 4px 12px;
  font-size: 10px;
  text-transform: uppercase;
}

.orderbook-table th:first-child {
  text-align: left;
}

.orderbook-table td {
  padding: 3px 12px;
  text-align: right;
  position: relative;
}

.orderbook-table td:first-child {
  text-align: left;
}

.orderbook-row {
  cursor: pointer;
  transition: background var(--transition-fast);
}

.orderbook-row:hover {
  background-color: var(--bg-tertiary);
}

.depth-bar-asks {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  background-color: var(--accent-red-bg);
  z-index: 1;
  pointer-events: none;
}

.depth-bar-bids {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  background-color: var(--accent-green-bg);
  z-index: 1;
  pointer-events: none;
}

.orderbook-cell-val {
  position: relative;
  z-index: 2;
}

.spread-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px;
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 12px;
}

/* Event Logs Panel */

.logs-container {
  display: flex;
  flex-direction: column;
  height: 50%;
  overflow: hidden;
}

.log-list {
  padding: 10px 16px;
  overflow-y: auto;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.log-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.4;
  border-left: 2px solid transparent;
  padding-left: 6px;
}

.log-item.info { border-left-color: var(--accent-blue); color: var(--text-secondary); }

.log-item.success { border-left-color: var(--accent-green); color: var(--text-primary); }

.log-item.warning { border-left-color: var(--accent-gold); color: var(--accent-gold); }

.log-item.danger { border-left-color: var(--accent-red); color: #ff576f; }

.log-item.trade { border-left-color: var(--accent-gold); color: var(--text-primary); }

.log-time {
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Trades History & Performance Section */

.bottom-panel-section {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-right: 1px solid var(--border-color);
}

.bottom-panel-section:last-child {
  border-right: none;
}

.table-wrapper {
  overflow-y: auto;
  flex-grow: 1;
  min-height: 0;
}

.trade-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.trade-table th {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 500;
  text-align: left;
  padding: 8px 12px;
  position: sticky;
  top: 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 11px;
  text-transform: uppercase;
  z-index: 2;
}

.trade-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
}

.trade-table tr:hover {
  background-color: var(--bg-tertiary);
}

.trade-row-enter {
  animation: pulse-highlight 1.5s ease;
}

@keyframes pulse-highlight {
  0% { background-color: var(--accent-green-bg); }
  100% { background-color: transparent; }
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-long { background-color: var(--accent-green-bg); color: var(--accent-green); }

.badge-short { background-color: var(--accent-red-bg); color: var(--accent-red); }

/* Backtest Results styling */

.backtest-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 16px;
}

.backtest-stat-card {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
}

.backtest-stat-label {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.backtest-stat-value {
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-mono);
}

/* Modal overlay styled simply in CSS */

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 480px;
  max-width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.risk-alert-box {
  background-color: var(--accent-red-bg);
  border: 1px solid var(--accent-red);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.risk-alert-title {
  font-weight: 600;
  color: var(--accent-red);
  margin-bottom: 4px;
}

.risk-alert-desc {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.4;
}

.card-title-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-tooltip {
  color: var(--text-muted);
  cursor: help;
  display: inline-flex;
  align-items: center;
}