/* ==========================================================================
   AI Betting Analyst & Prompt Backtest Studio — Design System (Vanilla CSS)
   ========================================================================== */

:root {
  /* Color Palette (HSL Tailored) */
  --bg-primary: hsl(220, 18%, 10%);
  --bg-secondary: hsl(220, 16%, 13%);
  --bg-card: hsl(220, 16%, 16%);
  --bg-card-hover: hsl(220, 16%, 20%);
  --bg-input: hsl(220, 16%, 12%);

  --border-subtle: hsl(220, 12%, 22%);
  --border-focus: hsl(210, 80%, 55%);

  --text-primary: hsl(220, 20%, 96%);
  --text-secondary: hsl(220, 14%, 70%);
  --text-muted: hsl(220, 10%, 48%);

  --accent-primary: hsl(210, 85%, 52%);
  --accent-hover: hsl(210, 85%, 45%);
  --accent-glow: hsla(210, 85%, 52%, 0.15);

  --success-green: hsl(150, 70%, 45%);
  --success-bg: hsla(150, 70%, 45%, 0.12);
  
  --warning-yellow: hsl(42, 90%, 50%);
  --warning-bg: hsla(42, 90%, 50%, 0.12);

  --danger-red: hsl(355, 75%, 55%);
  --danger-bg: hsla(355, 75%, 55%, 0.12);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Elevation & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
}

/* Global Reset & Base */
* {
  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;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 16px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-badge {
  background-color: var(--accent-glow);
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-primary);
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.version-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* Header Search */
.header-search {
  display: flex;
  align-items: center;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  gap: 8px;
  flex: 1;
  max-width: 420px;
  transition: border-color 0.15s ease;
}

.header-search:focus-within {
  border-color: var(--border-focus);
}

.search-icon {
  font-size: 13px;
  opacity: 0.6;
}

.header-search input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  width: 100%;
  outline: none;
}

.kbd-hint {
  background-color: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--bg-input);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success-green);
  box-shadow: 0 0 6px var(--success-green);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

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

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

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

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

.btn-block {
  width: 100%;
}

/* Rule Banner */
.rule-banner {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: 9px 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.rule-badge {
  background-color: var(--warning-bg);
  color: var(--warning-yellow);
  border: 1px solid var(--warning-yellow);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.rule-text {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.rule-text strong {
  color: var(--text-primary);
}

/* Tab Navigation */
.tab-bar {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 28px;
  display: flex;
  gap: 4px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
  font-weight: 600;
}

.tab-counter {
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.alert-counter {
  background-color: var(--warning-bg);
  color: var(--warning-yellow);
  border-color: var(--warning-yellow);
}

/* Main Container */
.content-container {
  flex: 1;
  padding: 24px 28px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.15s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* View Header */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
  gap: 16px;
  flex-wrap: wrap;
}

.view-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.view-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 3px;
}

/* 1-Click Sport Filter Pills */
.sport-pills-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 14px;
  margin-bottom: 18px;
  scrollbar-width: thin;
}

.sport-pill {
  background-color: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.sport-pill:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.sport-pill.active {
  background-color: var(--accent-glow);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.pill-count {
  background-color: var(--bg-input);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.sport-pill.active .pill-count {
  background-color: var(--accent-primary);
  color: #ffffff;
}

/* Picks Grid */
.picks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 20px;
}

.pick-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 14px;
  cursor: pointer;
}

.pick-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pick-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pick-sport-tag {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.pick-edge-badge {
  background-color: var(--success-bg);
  color: var(--success-green);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--success-green);
}

.pick-game-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.pick-selection-box {
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.selection-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent-primary);
}

.selection-odds {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.pick-metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background-color: var(--bg-secondary);
  padding: 10px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.metric-label {
  font-size: 11px;
  color: var(--text-muted);
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.pick-reasoning {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  background-color: var(--bg-input);
  padding: 10px;
  border-radius: var(--radius-sm);
}

.pick-stake-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.stake-badge {
  background-color: var(--warning-bg);
  color: var(--warning-yellow);
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.click-hint {
  font-size: 11px;
  color: var(--accent-primary);
}

/* Prompt Matrix Cards */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.matrix-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.matrix-card-title {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-primary);
}

.matrix-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Data Tables */
.table-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table-card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.table-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  font-weight: 600;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table.sortable th.sort-header {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease;
}

.data-table.sortable th.sort-header:hover {
  color: var(--text-primary);
  background-color: var(--bg-card-hover);
}

.data-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

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

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Strategy Preset Pills */
.preset-pills-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.preset-label {
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 600;
}

.preset-btn {
  font-size: 12px;
  padding: 5px 10px;
}

/* Simulator Layout */
.simulator-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}

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

.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.value-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
  background-color: var(--bg-input);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-size: 12px;
}

.slider {
  width: 100%;
  accent-color: var(--accent-primary);
  background-color: var(--bg-input);
  height: 6px;
  border-radius: 3px;
  outline: none;
}

.sim-visual-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.kpi-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.kpi-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.kpi-value.positive {
  color: var(--success-green);
}

.kpi-value.safe {
  color: var(--success-green);
}

.kpi-sub {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.chart-card {
  padding: 20px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.chart-title-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.chart-legend {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.chart-toggle-group {
  display: flex;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.toggle-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.toggle-btn.active {
  background-color: var(--bg-card);
  color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.chart-container {
  width: 100%;
  height: 260px;
  background-color: var(--bg-input);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Alerts Feed & Filter Bar */
.alert-filter-bar {
  display: flex;
  gap: 8px;
}

.alert-filter-pill {
  background-color: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.alert-filter-pill.active {
  background-color: var(--accent-glow);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  font-weight: 700;
}

.alerts-feed {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.alert-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.15s ease;
}

.alert-item:hover {
  transform: translateX(4px);
}

.alert-item.value-capture {
  border-left: 4px solid var(--success-green);
}

.alert-item.adverse {
  border-left: 4px solid var(--danger-red);
}

.alert-item.expansion {
  border-left: 4px solid var(--warning-yellow);
}

.alert-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.alert-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.alert-meta {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* Matchup Detail Audit Drawer */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(2px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

.audit-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 540px;
  max-width: 90vw;
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  z-index: 210;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.audit-drawer.active {
  transform: translateX(0);
}

.drawer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-card);
}

.drawer-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drawer-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.drawer-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  transition: color 0.15s ease;
}

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

.drawer-body {
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.drawer-section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 13px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideToast 0.2s ease-out;
}

.toast.success {
  border-left: 4px solid var(--success-green);
}

.toast.info {
  border-left: 4px solid var(--accent-primary);
}

@keyframes slideToast {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Footer */
.app-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 14px 28px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.footer-separator {
  color: var(--border-subtle);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }
  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .header-search {
    max-width: 100%;
  }
  .picks-grid {
    grid-template-columns: 1fr;
  }
  .tab-bar {
    overflow-x: auto;
  }
}