/* =============================================================================
   styles.css — DarkHorse Dark Theme
   ============================================================================= */

/* ---- CSS Variables ---- */
:root {
  --bg-body: #0d1117;
  --bg-nav: #010409;
  --bg-card: #161b22;
  --bg-card-alt: #1c2333;
  --bg-input: #0d1117;
  --bg-hover: #1f2937;
  --bg-selected: #1a3a5c;
  --border: #30363d;
  --border-light: #21262d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-red: #f85149;
  --accent-orange: #d29922;
  --accent-purple: #bc8cff;
  --accent-cyan: #39d2c0;
  --accent-pink: #f778ba;
  --gold: #ffd700;
  --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,.4);
  --transition: 200ms ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 13px; }
body {
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ---- Top Nav ---- */
.top-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 48px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand { display: flex; align-items: center; gap: 8px; }
.brand-icon { flex-shrink: 0; }
.brand-name { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); letter-spacing: .3px; }
.nav-tabs { display: flex; gap: 2px; margin-left: 24px; }
.nav-tab {
  color: var(--text-secondary);
  text-decoration: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 14px;
  font-size: .92rem;
  font-weight: 500;
  font-family: var(--font-main);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.nav-tab:hover { color: var(--text-primary); }
.nav-tab.active { color: var(--text-primary); border-bottom-color: var(--accent-blue); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ---- Tab Pages ---- */
.tab-page {
  display: grid;
  gap: 10px;
  padding: 10px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Dashboard tab: narrow horse panel | wider analytics column */
#page-dashboard {
  grid-template-columns: 340px 1fr;
  grid-template-rows: 1fr;
}
.db-left {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  max-height: calc(100vh - 62px);
}
.db-left .fill-col { flex: 1; min-height: 0; }
.db-right {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  max-height: calc(100vh - 62px);
}
.db-right #speed-analytics { flex: 0 0 auto; min-height: 280px; }
.db-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  flex: 1;
  min-height: 260px;
}

/* Race Analysis tab: ra-left is a slide-in drawer; ra-right takes full width */
#page-race-analysis {
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  position: relative;
  overflow: hidden;
}
.ra-left {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 700px;
  /* default: hidden — only the pull-tab (32px) is visible */
  transform: translateX(calc(-100% + 32px));
  transition: transform 0.25s cubic-bezier(.4,0,.2,1);
  z-index: 20;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
  border-right: 1px solid var(--border);
  box-shadow: 4px 0 20px rgba(0,0,0,.35);
}
#page-race-analysis.ra-panel-open .ra-left {
  transform: translateX(0);
}
.ra-left .fill-col { flex: 1; min-height: 0; overflow: hidden; }
/* Pull-tab that sticks out to the right of the closed drawer */
.ra-pull-tab {
  position: absolute;
  right: -32px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 64px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: .75rem;
  writing-mode: vertical-rl;
  letter-spacing: .08em;
  padding: 6px 0;
  z-index: 1;
  transition: background 0.15s, color 0.15s;
}
.ra-pull-tab:hover { background: var(--bg-hover); color: var(--accent-blue); }
.ra-right {
  grid-column: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  max-height: calc(100vh - 62px);
  padding-left: 36px; /* leave room so pull-tab doesn't overlap content */
}
#page-race-analysis.ra-panel-open .ra-right {
  padding-left: 0;
}
/* Merged replay+bump panel */
.replay-wrap {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 0;
}
.replay-wrap #race-replay {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
/* Date input inside race picker — legacy rule kept for any fallback */
.race-picker input[type="date"] {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .80rem;
  padding: 4px 6px;
  cursor: pointer;
  color-scheme: dark;
}
.race-picker input[type="date"]:focus { border-color: var(--accent-blue); outline: none; }

/* ---- Custom calendar picker ---- */
.cal-wrap { position: relative; flex: 1; }
.cal-btn {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .80rem;
  padding: 4px 8px;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
}
.cal-btn:focus { border-color: var(--accent-blue); outline: none; }
.cal-popup {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 28px rgba(0,0,0,.5);
  padding: 8px;
  width: 214px;
  user-select: none;
}
.cal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-primary);
}
.cal-nav-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  line-height: 1;
}
.cal-nav-btn:hover { background: var(--bg-hover); color: var(--accent-blue); }
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.cal-weekday {
  text-align: center;
  font-size: .65rem;
  color: var(--text-muted);
  padding: 2px 0 4px;
}
.cal-day {
  text-align: center;
  font-size: .75rem;
  padding: 4px 2px;
  border-radius: 4px;
  line-height: 1.4;
}
.cal-day.empty-day { background: none; }
.cal-day.no-race { color: var(--text-muted); opacity: 0.3; cursor: default; pointer-events: none; }
.cal-day.race-day { color: var(--accent-cyan); cursor: pointer; }
.cal-day.race-day:hover { background: var(--bg-hover); }
.cal-day.selected { background: var(--accent-blue) !important; color: #fff !important; font-weight: 600; cursor: pointer; }

/* ---- Panel Cards ---- */
.panel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: .95rem;
  color: var(--text-primary);
  flex-shrink: 0;
}
.panel-header .header-actions { display: flex; gap: 6px; }
.panel-body { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px; }

/* ---- Horse Panel (merged sidebar) ---- */
#horse-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#horse-panel .horse-list { max-height: 200px; }

/* ---- Performance Grid (race-centric) ---- */
#performance-grid { flex: 1 1 auto; overflow: hidden; }
.race-picker {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.race-picker-row { display: flex; gap: 6px; align-items: center; }
.race-picker-row label { font-size: .78rem; color: var(--text-secondary); min-width: 40px; }
.race-picker select {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .80rem;
  padding: 4px 6px;
  cursor: pointer;
}
.race-picker select:focus { border-color: var(--accent-blue); outline: none; }
.race-nav-btn {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 2px 8px;
  cursor: pointer;
  font-size: .84rem;
  font-family: var(--font-main);
  line-height: 1.4;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}
.race-nav-btn:hover { background: var(--bg-hover); color: var(--accent-blue); }

/* ---- Dictionary Button ---- */
.dict-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: .82rem;
  font-family: var(--font-main);
  padding: 4px 10px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  white-space: nowrap;
}
.dict-btn:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  background: var(--bg-hover);
}
.dict-btn svg { flex-shrink: 0; stroke: currentColor; }

/* ---- Floating popup window (shared by bump chart + glossary) ---- */
.float-popup {
  position: fixed;
  resize: both;
  overflow: hidden;
  z-index: 600;
  min-width: 360px;
  min-height: 180px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,.6);
  display: flex;
  flex-direction: column;
}
.float-popup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  cursor: grab;
  user-select: none;
}
.float-popup-bar:active { cursor: grabbing; }
.float-popup-bar-title {
  flex: 1;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 7px;
}
.float-popup-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--transition), background var(--transition);
}
.float-popup-close:hover { color: var(--text-primary); background: var(--bg-hover); }

/* ---- Race Analysis toolbar (above replay panel) ---- */
.ra-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
/* Horse selector in Race Analysis toolbar */
.ra-sel-label {
  font-size: .78rem;
  color: var(--text-secondary);
  white-space: nowrap;
}
.ra-horse-sel {
  flex: 1;
  max-width: 320px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .82rem;
  padding: 4px 8px;
  cursor: pointer;
}
.ra-horse-sel:focus { border-color: var(--accent-blue); outline: none; }
/* Inline bump chart panel — fills remaining height in ra-right */
.ra-bump-wrap {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
/* Replay open button in Race Analysis toolbar */
.replay-open-btn {
  padding: 5px 14px;
  background: linear-gradient(180deg, #1a2533 0%, #141d2a 100%);
  border: 1px solid #2f4661;
  border-radius: var(--radius-sm);
  color: #8ec5ff;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), transform 120ms ease;
  margin-left: auto;
}
.replay-open-btn:hover { background: linear-gradient(180deg, #21344a 0%, #1a2940 100%); border-color: #4f7cae; transform: translateY(-1px); }

/* ---- Market Intelligence tab ---- */
#page-market {
  grid-template-columns: 340px 1fr;
  grid-template-rows: 1fr;
}
#page-betting {
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
#page-betting .db-right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  gap: 10px;
  overflow: hidden;
}
#page-betting .panel-card { min-height: 0; }
/* Calibration chart note text */
.oc-note {
  font-size: .72rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.chart-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  margin-left: 6px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent-cyan);
  font-size: 9px;
  font-weight: 700;
  cursor: help;
}
.chart-switch {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.chart-switch-btn {
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: .72rem;
  cursor: pointer;
}
.chart-switch-btn.active {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(57, 210, 192, 0.08);
}
.chart-headline {
  font-size: .77rem;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.35;
}
.oc-bar { transition: opacity 120ms ease; }
.ts-stream {
  transition: opacity 120ms ease, stroke-width 120ms ease;
  cursor: pointer;
}
.bs-bubble {
  transition: fill-opacity 120ms ease, stroke 120ms ease;
  cursor: pointer;
}
.bs-filters {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.bs-filter-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .70rem;
  color: var(--text-secondary);
}
.bs-range { width: 92px; accent-color: var(--accent-cyan); }
.bs-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .72rem;
  padding: 2px 6px;
}
.bs-filter-value {
  color: var(--accent-cyan);
  font-size: .7rem;
  min-width: 30px;
}

/* ---- PerformanceGrid dual-tab system ---- */
.pg-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.pg-tab {
  flex: 1;
  padding: 6px 6px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: .73rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition), border-color var(--transition);
}
.pg-tab.active { color: var(--accent-blue); border-bottom-color: var(--accent-blue); }
.pg-tab:hover:not(.active) { color: var(--text-primary); }
.pg-tab-panel { display: flex; flex-direction: column; }
.pg-horse-search-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 0 4px;
}
.pg-horse-filter {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .80rem;
  padding: 4px 8px;
  box-sizing: border-box;
}
.pg-horse-filter:focus { border-color: var(--accent-blue); outline: none; }
/* Autocomplete results list */
.pg-ac-list {
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}
.pg-ac-list:empty { display: none; }
.pg-ac-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 5px 8px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition);
}
.pg-ac-row:last-child { border-bottom: none; }
.pg-ac-row:hover { background: var(--bg-hover); }
.pg-ac-name { font-size: .79rem; color: var(--text-primary); flex: 1; }
.pg-ac-id { font-size: .71rem; color: var(--text-muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.pg-ac-empty { font-size: .78rem; color: var(--text-muted); padding: 7px 10px; text-align: center; }
.pg-ac-rtg { font-size: .69rem; color: var(--accent-blue); white-space: nowrap; margin-left: 6px; font-variant-numeric: tabular-nums; }
.horse-sort-bar { display: flex; align-items: center; gap: 4px; padding: 4px 8px 2px; }
.horse-sort-label { font-size: .70rem; color: var(--text-muted); margin-right: 2px; }
.horse-sort-btn { font-size: .70rem; padding: 1px 7px; border-radius: 10px; border: 1px solid var(--border-light); background: transparent; color: var(--text-secondary); cursor: pointer; line-height: 1.6; }
.horse-sort-btn:hover { color: var(--text-primary); border-color: var(--text-secondary); }
.horse-sort-btn.active { color: var(--accent-blue); border-color: var(--accent-blue); background: rgba(88,166,255,.08); }
/* Selected horse banner */
.pg-selected-horse {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: rgba(88,166,255,.1);
  border: 1px solid rgba(88,166,255,.35);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}
.pg-sel-label { font-size: .80rem; font-weight: 600; color: var(--accent-blue); flex: 1; }
.pg-sel-id { font-size: .72rem; color: var(--text-muted); }
.pg-race-list {
  overflow-y: auto;
  max-height: 190px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}
.pg-race-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-light);
  font-size: .77rem;
  transition: background var(--transition);
}
.pg-race-row:last-child { border-bottom: none; }
.pg-race-row:hover { background: var(--bg-hover); }
.pg-race-row-date { color: var(--text-secondary); min-width: 68px; font-variant-numeric: tabular-nums; }
.pg-race-row-ri { color: var(--text-primary); min-width: 46px; }
.pg-race-row-class { color: var(--text-muted); font-size: .71rem; flex: 1; }
.pg-race-row-place { margin-left: auto; }

/* ---- Tutorial guided tour ---- */
#tut-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none; /* pass all clicks through to page while tour is active */
}
#tut-overlay.welcome-active {
  pointer-events: all;
  background: rgba(0, 0, 0, 0.72);
}
#tut-overlay.welcome-active .tut-spotlight,
#tut-overlay.welcome-active .tut-callout {
  display: none;
}
.tut-spotlight {
  position: fixed;
  border-radius: 10px;
  /* big box-shadow creates darkened backdrop everywhere EXCEPT the spotlit rect */
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.62);
  pointer-events: none;
  transition: left 0.28s ease, top 0.28s ease, width 0.28s ease, height 0.28s ease, opacity 0.18s;
  z-index: 901;
}
.tut-callout {
  position: fixed;
  width: 340px;
  background: var(--bg-card);
  border: 1px solid var(--accent-blue);
  border-radius: var(--radius);
  padding: 18px 20px 14px;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.75);
  pointer-events: all; /* buttons inside must be clickable */
  transition: left 0.28s ease, top 0.28s ease;
  z-index: 902;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.tut-counter {
  font-size: .72rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: 7px;
}
.tut-title {
  font-size: .98rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.tut-body {
  font-size: .83rem;
  color: var(--text-secondary);
  line-height: 1.58;
  margin: 0 0 12px;
}
/* Progress bar */
.tut-progress {
  height: 3px;
  background: var(--border);
  border-radius: 9px;
  margin-bottom: 14px;
  overflow: hidden;
}
.tut-progress::after {
  content: '';
  display: block;
  height: 100%;
  width: var(--tut-pct, 0%);
  background: var(--accent-blue);
  border-radius: 9px;
  transition: width 0.28s ease;
}
.tut-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tut-btn {
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  font-size: .80rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--font-main);
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
  white-space: nowrap;
}
.tut-btn-ghost {
  background: none;
  border-color: var(--border);
  color: var(--text-muted);
}
.tut-btn-ghost:hover { color: var(--accent-red, #f85149); border-color: var(--accent-red, #f85149); }
.tut-btn-secondary {
  background: var(--bg-hover);
  border-color: var(--border);
  color: var(--text-secondary);
}
.tut-btn-secondary:hover:not(:disabled) { color: var(--text-primary); border-color: var(--accent-blue); }
.tut-btn-secondary:disabled { opacity: .35; cursor: default; }
.tut-btn-primary {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  margin-left: auto;
}
.tut-btn-primary:hover { opacity: .86; }

.tut-welcome {
  display: none;
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(620px, calc(100vw - 40px));
  background: linear-gradient(160deg, rgba(22, 27, 34, 0.97), rgba(18, 25, 38, 0.97));
  border: 1px solid rgba(88, 166, 255, 0.55);
  border-radius: 12px;
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.82);
  padding: 24px 24px 20px;
  z-index: 903;
}
#tut-overlay.welcome-active .tut-welcome {
  display: block;
}
.tut-welcome-title {
  font-size: 1.28rem;
  line-height: 1.35;
  color: var(--text-primary);
  margin: 0 0 10px;
}
.tut-welcome-desc {
  font-size: .88rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 12px;
}
.tut-welcome-prompt {
  font-size: .84rem;
  line-height: 1.55;
  color: #b8c5d1;
  margin: 0 0 16px;
}
.tut-welcome-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ---- Glossary popup ---- */
.glossary-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px 8px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  flex-shrink: 0;
  cursor: grab;
  user-select: none;
}
.glossary-header:active { cursor: grabbing; }
.glossary-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  margin-right: auto;
}
.glossary-search-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  flex: 1;
  min-width: 160px;
}
.glossary-search-wrap input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: .82rem;
  width: 100%;
  outline: none;
}
.glossary-search-wrap input::placeholder { color: var(--text-muted); }
.glossary-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  line-height: 1;
  transition: color var(--transition), background var(--transition);
}
.glossary-close:hover { color: var(--text-primary); background: var(--bg-hover); }
.glossary-subtitle {
  font-size: .75rem;
  color: var(--text-muted);
  padding: 6px 14px 8px;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
  line-height: 1.5;
}
.gloss-q-demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #fff;
  font-size: .6rem;
  font-weight: 700;
  vertical-align: middle;
}
.glossary-body {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}
.gloss-category {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 14px 4px;
  pointer-events: none;
}
.gloss-term {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px;
  padding: 7px 14px;
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition);
}
.gloss-term:hover { background: var(--bg-hover); }
.gloss-key {
  font-weight: 600;
  font-size: .82rem;
  color: var(--accent-blue);
  font-family: var(--font-mono);
  padding-top: 1px;
  word-break: break-word;
}
.gloss-def {
  font-size: .80rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.gloss-empty {
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: .85rem;
}

/* ---- Footer ---- */
.app-footer {
  display: flex;
  justify-content: space-between;
  padding: 6px 20px;
  font-size: .75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  background: var(--bg-nav);
}

/* ============================================================================
   COMPONENT-SPECIFIC STYLES
   ============================================================================ */

/* ---- Sidebar Selector ---- */
.sidebar-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.sidebar-search input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 5px 8px;
  font-size: .85rem;
  outline: none;
}
.sidebar-search input:focus { border-color: var(--accent-blue); }
.horse-list { max-height: 240px; overflow-y: auto; }
.horse-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}
.horse-row:hover { background: var(--bg-hover); }
.horse-row.active { background: var(--bg-selected); border-left-color: var(--accent-blue); }
.horse-row .horse-id {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-muted);
  min-width: 44px;
}
.horse-row .horse-name { font-weight: 500; font-size: .88rem; }
.horse-row .horse-meta { margin-left: auto; font-size: .78rem; color: var(--text-secondary); }
.horse-row .horse-chevron { color: var(--text-muted); margin-left: 4px; }

/* ---- Horse Profile Card ---- */
.horse-profile {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.horse-profile-header {
  display: flex;
  align-items: center;
  gap: 12px;
}
.horse-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
  flex-shrink: 0;
}
.horse-profile-info h3 { font-size: 1rem; font-weight: 600; }
.horse-profile-info .meta-line { font-size: .8rem; color: var(--text-secondary); }
.profile-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.stat-box {
  background: var(--bg-card-alt);
  border-radius: var(--radius-sm);
  padding: 8px;
  text-align: center;
}
.stat-value { font-size: 1.2rem; font-weight: 700; }
.stat-label { font-size: .72rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; }
.stat-value.green { color: var(--accent-green); }
.stat-value.blue { color: var(--accent-blue); }
.stat-value.orange { color: var(--accent-orange); }
.recent-form { display: flex; gap: 4px; align-items: center; padding: 4px 0; }
.form-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 700;
  color: #fff;
}
.form-dot.win { background: var(--accent-green); }
.form-dot.place { background: var(--accent-orange); }
.form-dot.loss { background: var(--accent-red); }
.form-label { font-size: .78rem; color: var(--text-secondary); margin-right: 6px; }

/* Gear tags */
.gear-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.gear-tag {
  font-size: .72rem;
  padding: 2px 7px;
  border-radius: 10px;
  background: var(--bg-hover);
  color: var(--accent-cyan);
  border: 1px solid var(--border);
}

/* ---- Performance Grid ---- */
.perf-controls {
  display: flex; gap: 6px; padding: 8px 10px; border-bottom: 1px solid var(--border); align-items: center;
}
.perf-controls select, .perf-controls button {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: .78rem;
  padding: 4px 8px;
  cursor: pointer;
}
.perf-controls select:focus { border-color: var(--accent-blue); outline: none; }
.perf-table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: .78rem; }
#perf-table-wrap { overflow-x: auto; }
.perf-table th {
  text-align: left;
  padding: 5px 6px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-card);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}
.perf-table th:hover { color: var(--text-primary); }
.perf-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}
.perf-table tr { cursor: pointer; transition: background var(--transition); }
.perf-table tbody tr:hover { background: var(--bg-hover); }
.perf-table tbody tr.selected-race { background: var(--bg-selected); }
.place-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%;
  font-weight: 700; font-size: .72rem;
}
.place-1 { background: var(--gold); color: #000; }
.place-2 { background: #c0c0c0; color: #000; }
.place-3 { background: #cd7f32; color: #fff; }
.place-other { background: var(--bg-card-alt); color: var(--text-secondary); }

/* ---- Race Replay ---- */
.replay-tabs { display: flex; gap: 2px; }
.replay-tab {
  padding: 4px 12px;
  font-size: .82rem;
  cursor: pointer;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: var(--bg-card-alt);
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.replay-tab.active { background: var(--bg-card); color: var(--text-primary); border-color: var(--border); border-bottom-color: var(--bg-card); }
.replay-title {
  font-size: .92rem;
  font-weight: 600;
  padding: 6px 14px;
  color: var(--accent-blue);
  cursor: help;
  user-select: none;
}
.replay-svg { width: 100%; background: linear-gradient(180deg, #0f1520 0%, #0d1117 100%); }
.track-surface { fill: #4f5f42; stroke: #60704e; stroke-width: 1.2; fill-opacity: .34; }
.track-infield { fill: #1f3228; stroke: #2d4336; stroke-width: 1; fill-opacity: .85; }
.track-lane { fill: none; stroke: rgba(222, 224, 228, 0.22); stroke-width: 0.7; }
.track-line { fill: none; stroke: var(--border); stroke-width: 1; stroke-dasharray: 4 2; }
.track-rail-outer { fill: none; stroke: #d9dde3; stroke-width: 1.4; opacity: .95; }
.track-rail-inner { fill: none; stroke: #d9dde3; stroke-width: 1.2; opacity: .75; }
.track-finish-line { stroke: #ffffff; stroke-width: 2.2; stroke-dasharray: 3 2; }
.track-start-line { stroke: var(--accent-cyan); stroke-width: 1.6; opacity: .9; }
.horse-dot { cursor: pointer; transition: r var(--transition); }
.horse-dot:hover { r: 10; }
.horse-label { font-size: 9px; fill: var(--text-primary); pointer-events: none; }
.track-marker { font-size: 8px; fill: #c6ced8; text-anchor: middle; letter-spacing: .04em; }
.race-conditions {
  display: flex;
  gap: 16px;
  padding: 8px 14px;
  background: var(--bg-card-alt);
  border-top: 1px solid var(--border);
  font-size: .82rem;
}
.race-conditions .cond-item { display: flex; gap: 4px; }
.race-conditions .cond-label { color: var(--text-secondary); }
.race-conditions .cond-value { color: var(--text-primary); font-weight: 500; }

/* Scrubber */
.replay-scrubber {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-top: 1px solid var(--border);
}
.scrub-btn {
  background: none; border: none; color: var(--text-secondary); cursor: pointer;
  padding: 4px; display: flex; align-items: center;
}
.scrub-btn:hover { color: var(--text-primary); }
.scrub-btn svg { width: 16px; height: 16px; fill: currentColor; }
.scrub-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
.scrub-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent-blue);
  cursor: pointer;
}
.scrub-time { font-family: var(--font-mono); font-size: .78rem; color: var(--text-secondary); min-width: 40px; }

/* ---- Speed Analytics ---- */
.speed-chart { width: 100%; }
.speed-line { fill: none; stroke: var(--accent-cyan); stroke-width: 2; }
.speed-dot { fill: var(--accent-cyan); }
.speed-area { fill: var(--accent-cyan); opacity: .1; }
.speed-axis text { fill: var(--text-secondary); font-size: 9px; }
.speed-axis line, .speed-axis path { stroke: var(--border); }

/* ---- Breeding Tree ---- */
.tree-node circle { stroke-width: 2; cursor: pointer; }
.tree-node text { font-size: 9px; fill: var(--text-primary); }
.tree-link { fill: none; stroke: var(--border); stroke-width: 1.5; }
.tree-legend { font-size: .75rem; }
.tree-legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; }

/* ---- Synergy Matrix ---- */
.synergy-controls {
  display: flex; gap: 8px; padding: 8px 10px; border-bottom: 1px solid var(--border); align-items: center; flex-wrap: wrap;
}
.synergy-controls select {
  background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: .8rem; padding: 4px 8px;
}
.synergy-controls label { font-size: .8rem; color: var(--text-secondary); }
.synergy-controls button {
  background: var(--accent-blue); border: none; border-radius: var(--radius-sm);
  color: #fff; font-size: .78rem; padding: 4px 12px; cursor: pointer; font-weight: 600;
}
.synergy-controls button:hover { opacity: .85; }
.synergy-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px;
  padding: 8px; font-size: .78rem;
}
.synergy-stat {
  background: var(--bg-card-alt); border-radius: var(--radius-sm);
  padding: 6px 8px; text-align: center;
}
.synergy-stat .val { font-size: 1.1rem; font-weight: 700; color: var(--accent-blue); }
.synergy-stat .lbl { font-size: .68rem; color: var(--text-secondary); text-transform: uppercase; }
.synergy-table { width: 100%; border-collapse: collapse; font-size: .78rem; }
.synergy-table th {
  text-align: left; padding: 4px 6px; font-weight: 600; color: var(--text-secondary);
  border-bottom: 1px solid var(--border); background: var(--bg-card); position: sticky; top: 0;
}
.synergy-table td { padding: 4px 6px; border-bottom: 1px solid var(--border-light); }
.sortable-th { cursor: pointer; user-select: none; white-space: nowrap; }
.sortable-th:hover { color: var(--text-primary); }
.sort-active { color: var(--accent-blue); }
.sort-arrow { font-size: .70rem; opacity: .7; }
.synergy-table tr:hover { background: var(--bg-hover); }

/* ---- Gear Impact ---- */
.gear-impact-bars { padding: 8px; }
.gear-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border-light);
}
.gear-bar-label { font-size: .78rem; min-width: 120px; color: var(--text-primary); }
.gear-bar-track {
  flex: 1; height: 16px;
  background: var(--bg-card-alt);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}
.gear-bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 0.5s ease;
  display: flex;
  align-items: center;
  padding-left: 4px;
  font-size: .68rem;
  font-weight: 600;
}
.gear-bar-fill.positive { background: var(--accent-green); color: #000; }
.gear-bar-fill.negative { background: var(--accent-red); color: #fff; }
.gear-avg-fspeed { font-family: var(--font-mono); font-size: .75rem; color: var(--text-secondary); min-width: 50px; text-align: right; }

/* ---- Per-horse Trending (inside HorsePanel) ---- */
.trending-section {
  padding: 8px 10px;
  border-top: 1px solid var(--border);
}
.trending-section h4 {
  font-size: .80rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .4px;
}
.trend-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3px 0;
  font-size: .78rem;
}
.trend-name { color: var(--text-secondary); }
.trend-val { font-weight: 600; }
.trend-val.positive { color: var(--accent-green); }
.trend-val.negative { color: var(--accent-red); }
.trend-val.neutral { color: var(--text-secondary); }
.sparkline-svg { width: 100%; overflow: visible; }

/* ---- Lineage (Sire / Dam) ---- */
.lineage-row {
  display: flex;
  gap: 8px;
  padding: 6px 0 2px;
}
.lineage-item {
  flex: 1;
  background: var(--bg-card-alt);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
}
.lineage-label {
  font-size: .68rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .4px;
}
.lineage-value {
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent-purple);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- Metric Tooltip ---- */
.metric-tip-wrap {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  position: relative;
}
.metric-tip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-muted);
  font-size: .60rem;
  font-weight: 700;
  cursor: help;
  flex-shrink: 0;
  line-height: 1;
}
.metric-tip-icon:hover { background: var(--accent-blue); color: #fff; }
.metric-tooltip-popup {
  position: fixed;
  pointer-events: none;
  background: rgba(22,27,34,.97);
  border: 1px solid var(--accent-blue);
  border-radius: var(--radius);
  padding: 7px 11px;
  font-size: .78rem;
  color: var(--text-primary);
  z-index: 9999;
  max-width: 220px;
  box-shadow: 0 4px 16px rgba(0,0,0,.6);
  line-height: 1.5;
}

/* ---- Bump Chart ---- */
#bump-chart .bump-svg { width: 100%; }
.bump-line { fill: none; stroke-width: 2; opacity: .75; }
.bump-line.active { stroke-width: 3; opacity: 1; }
.bump-dot { r: 4; }
.bump-now-line { stroke: rgba(255,255,255,.35); stroke-width: 1.5; stroke-dasharray: 3 2; }
.bump-axis text { fill: var(--text-secondary); font-size: 9px; }
.bump-axis line, .bump-axis path { stroke: var(--border); }

/* ---- Tooltips ---- */
.d3-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(22, 27, 34, .95);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: .78rem;
  color: var(--text-primary);
  z-index: 200;
  max-width: 240px;
  box-shadow: var(--shadow);
}
.d3-tooltip .tt-title { font-weight: 600; margin-bottom: 3px; }
.d3-tooltip .tt-row { display: flex; justify-content: space-between; gap: 12px; }
.d3-tooltip .tt-label { color: var(--text-secondary); }

/* ---- Loading / Empty States ---- */
.loading-state, .empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  color: var(--text-muted);
  font-size: .88rem;
}
.loading-spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin-right: 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Responsive ---- */
@media (max-width: 1200px) {
  #page-dashboard { grid-template-columns: 300px 1fr; }
}
@media (max-width: 900px) {
  #page-dashboard { grid-template-columns: 1fr; grid-template-rows: auto; }
  .db-left, .db-right { max-height: none; overflow-y: visible; }
  .ra-right { padding-left: 36px; }
}