:root {
  /* Apple-style light theme */
  --bg-primary: #f5f5f7;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255,255,255,0.62);
  --bg-card-hover: rgba(255,255,255,0.78);
  --bg-card-solid: #ffffff;
  --border-card: rgba(0,0,0,0.08);
  --border-hover: rgba(0,0,0,0.16);
  --text-primary: #1d1d1f;
  --text-secondary: rgba(0,0,0,0.58);
  --text-tertiary: rgba(0,0,0,0.36);
  --accent-blue: #0071e3;
  --accent-purple: #ac39ff;
  --accent-pink: #ff2d92;
  --positive: #1f9d55;
  --negative: #e02d2d;
  --font-sans: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-md: 14px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font-sans);
  background: linear-gradient(180deg, #fafafc 0%, #f0f1f5 100%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-attachment: fixed;
  position: relative;
}

/* Soft pastel blob layer — Apple-style hero backdrop */
body::before {
  content: '';
  position: fixed; inset: -10vmax;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(36vmax 36vmax at 14% 16%, rgba(0,113,227,0.18), transparent 60%),
    radial-gradient(34vmax 34vmax at 86% 20%, rgba(172,57,255,0.16), transparent 60%),
    radial-gradient(40vmax 40vmax at 78% 86%, rgba(255,45,146,0.14), transparent 60%),
    radial-gradient(32vmax 32vmax at 18% 84%, rgba(48,209,200,0.16), transparent 60%);
  filter: blur(30px) saturate(120%);
  animation: auroraDrift 32s ease-in-out infinite alternate;
}

/* Subtle grain to break gradient banding */
body::after {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(0,0,0,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
}

@keyframes auroraDrift {
  0%   { transform: translate3d(0,0,0)       scale(1); }
  50%  { transform: translate3d(2%, -3%, 0)  scale(1.05); }
  100% { transform: translate3d(-2%, 2%, 0)  scale(1.02); }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.18); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.32); }

/* Nav */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-card);
}
.glass-nav {
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset;
}
.nav-inner {
  max-width: 1440px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; height: 56px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-primary); }
.logo-icon {
  font-size: 20px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-text { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 8px; }
.nav-link {
  text-decoration: none; color: var(--text-secondary);
  padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 500;
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: rgba(0,0,0,0.05); }
.nav-status { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-secondary); }
.lang-select {
  background: rgba(0,0,0,0.04);
  color: var(--text-primary);
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}
.lang-select:hover { border-color: rgba(0,0,0,0.20); }
.lang-select:focus { border-color: var(--accent-blue); }
.lang-select option { background: #ffffff; color: var(--text-primary); }
.live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--positive);
  animation: pulse 2s ease-in-out infinite;
  box-shadow: 0 0 8px var(--positive);
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* Main */
#app {
  max-width: 1440px; margin: 0 auto;
  padding: 80px 32px 48px;
  position: relative; z-index: 1;
}

/* Glass Card — Apple-style frosted */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(28px) saturate(180%); -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 0 0 0.5px rgba(0,0,0,0.04),
    0 12px 36px rgba(31,38,72,0.08);
  transition: var(--transition);
  position: relative;
}
.glass-card::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 45%);
}
.glass-card > * { position: relative; z-index: 1; }
.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px) scale(1.005);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.95) inset,
    0 0 0 0.5px rgba(0,0,0,0.05),
    0 18px 48px rgba(31,38,72,0.14);
}

/* Hero */
.hero { text-align: center; padding: 48px 0 40px; }
.hero-label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-secondary); margin-bottom: 8px; }
.hero-value {
  font-size: 64px; font-weight: 800; letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height: 1.1;
}
.hero-pnl { font-size: 20px; font-weight: 600; margin-top: 8px; font-variant-numeric: tabular-nums; }

/* Stat boxes */
.stats-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.stat-box {
  padding: 24px 32px; min-width: 200px; text-align: center;
}
.stat-box .stat-label { font-size: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.stat-box .stat-value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.positive { color: var(--positive) !important; -webkit-text-fill-color: var(--positive) !important; }
.negative { color: var(--negative) !important; -webkit-text-fill-color: var(--negative) !important; }

/* Section */
.section { margin-top: 48px; }
.section-title {
  font-size: 22px; font-weight: 700; margin-bottom: 20px; letter-spacing: -0.02em;
}

/* Chart */
.chart-container {
  border-radius: var(--radius); overflow: hidden; padding: 20px;
  position: relative;
}
.chart-container .tv-lightweight-charts { border-radius: var(--radius-sm); }
.chart-tooltip {
  position: absolute; top: 20px; left: 20px;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(20px) saturate(180%); -webkit-backdrop-filter: blur(20px) saturate(180%);
  padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  font-size: 13px; pointer-events: none;
  opacity: 0; transition: opacity 0.15s;
  z-index: 10;
}
.chart-tooltip.visible { opacity: 1; }
.chart-tooltip .tooltip-name { color: var(--text-secondary); margin-bottom: 4px; }
.chart-tooltip .tooltip-value { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Accounts Grid (legacy — now a vertical list) */
.accounts-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Section title row with sort controls */
.section-title-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; gap: 16px; flex-wrap: wrap;
}
.section-title-row .section-title { margin-bottom: 0; }
.sort-controls {
  display: flex; align-items: center; gap: 10px;
}
.sort-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.sort-select {
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  padding: 6px 28px 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='rgba(255,255,255,0.5)' d='M0 0l5 6 5-6z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.sort-select:hover { border-color: rgba(0,0,0,0.18); background-color: rgba(0,0,0,0.07); }
.sort-select:focus { border-color: #4da6ff; }
.sort-select option { background: #ffffff; color: var(--text-primary); }

/* Account Row (new list-style layout) */
.account-row {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: background var(--transition), border-color var(--transition);
}
.account-row:hover { background: var(--bg-card-hover); }
.account-row.expanded { border-color: rgba(255,255,255,0.14); background: var(--bg-card-hover); }

.row-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  cursor: pointer;
  gap: 16px;
}
.row-left {
  display: flex; align-items: center; gap: 14px;
  min-width: 0; flex: 1;
}
.row-strategy {
  font-size: 14px; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.row-metrics {
  display: flex; align-items: center; gap: 28px;
  flex-shrink: 0;
}
.row-metric { text-align: right; min-width: 90px; }
.row-metric-sub { min-width: 64px; }
.row-metric-sub .row-metric-value { font-size: 13px; font-weight: 500; }
.row-metric-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-secondary); margin-bottom: 2px;
}
.row-metric-value {
  font-size: 15px; font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}
.row-chevron {
  font-size: 22px; color: var(--text-secondary);
  transition: transform 0.3s ease;
  width: 16px; text-align: center;
  line-height: 1;
}
.account-row.expanded .row-chevron { transform: rotate(90deg); color: var(--text-primary); }

.badge-idx { background: rgba(255,183,77,0.15); color: #ffb74d; }

/* Row detail (accordion) */
.row-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  border-top: 1px solid transparent;
}
.account-row.expanded .row-detail {
  max-height: 100000px;
  border-top-color: var(--border-card);
}
.row-detail-inner { padding: 20px 24px; }
.row-detail-grid {
  display: flex;
  gap: 20px 28px;
  align-items: flex-start;
}
.row-detail-section { min-width: 0; }
.row-detail-equity,
.row-detail-grid > .row-detail-section:not(.row-detail-factors):not(.row-detail-equity) {
  /* left column items stack together */
}
.row-detail-grid > .row-detail-left {
  flex: 1.2 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.row-detail-factors { flex: 1 1 0; min-width: 0; }

@media (max-width: 900px) {
  .row-metrics { gap: 14px; }
  .row-metric { min-width: 70px; }
  .row-metric-sub { display: none; }
  .row-metric-value { font-size: 13px; }
  .row-detail-grid { flex-direction: column; }
  .row-detail-grid > .row-detail-left,
  .row-detail-factors { flex: 1 1 auto; width: 100%; }
}
@media (max-width: 600px) {
  .row-main { flex-direction: column; align-items: stretch; gap: 10px; padding: 12px 14px; }
  .row-metrics { justify-content: space-between; gap: 8px; }
  .row-metric { min-width: 0; }
  .row-chevron { display: none; }
}

/* Legacy card styles (kept for backward compat) */
.account-card { padding: 20px; cursor: pointer; position: relative; overflow: hidden; }
.account-card .card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.account-badge {
  font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 6px;
  font-family: var(--font-mono); letter-spacing: 0.05em;
}
.badge-a { background: rgba(0,136,255,0.15); color: #4da6ff; }
.badge-b { background: rgba(123,47,247,0.15); color: #b388ff; }
.badge-q { background: rgba(52,211,153,0.15); color: #34d399; }
.card-strategy { font-size: 12px; color: var(--text-secondary); }
.card-equity { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; margin-bottom: 4px; }
.card-pnl { font-size: 14px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sparkline-container { height: 40px; margin-top: 12px; }
.sparkline-container canvas { width: 100%; height: 100%; }

/* Expanded card detail */
.card-detail {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  border-top: 1px solid transparent;
  margin-top: 0;
}
.account-card.expanded .card-detail {
  max-height: 800px;
  border-top-color: var(--border-card);
  margin-top: 16px;
  padding-top: 16px;
}
.detail-section { margin-bottom: 16px; }
.detail-section-title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-secondary); margin-bottom: 8px; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left; padding: 8px 10px; font-weight: 500;
  color: var(--text-secondary); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-card);
}
.data-table td {
  padding: 8px 10px; border-bottom: 1px solid rgba(0,0,0,0.03);
  font-variant-numeric: tabular-nums;
}
.data-table tr:last-child td { border-bottom: none; }

/* KaTeX */
.factor-item { margin-bottom: 14px; }
.factor-formula { font-size: 1.1em; margin-bottom: 4px; }
.factor-formula .katex { color: var(--accent-blue); }
.factor-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border: none; border-radius: var(--radius-sm);
  font-family: var(--font-sans); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: var(--transition);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: var(--text-primary);
}
.btn-accent:hover { box-shadow: 0 4px 20px rgba(0,212,255,0.3); transform: translateY(-1px); }

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, rgba(0,0,0,0.04) 25%, rgba(0,0,0,0.06) 50%, rgba(0,0,0,0.04) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-text { height: 16px; margin-bottom: 8px; }
.skeleton-title { height: 48px; width: 280px; margin: 0 auto 12px; }
.skeleton-card { height: 160px; }

/* Fade in */
.fade-in { animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.fade-out { opacity: 0; transform: translateY(-8px); transition: all 0.2s ease-in; }

/* Backtest Layout */
.backtest-layout { display: flex; gap: 24px; min-height: calc(100vh - 120px); }
.config-panel { width: 350px; min-width: 350px; padding: 24px; display: flex; flex-direction: column; gap: 8px; height: fit-content; position: sticky; top: 88px; }
.results-panel { flex: 1; min-width: 0; }

.bt-field { margin-bottom: 12px; }
.bt-field label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.bt-input { width: 100%; padding: 8px 12px; background: rgba(0,0,0,0.05); border: 1px solid var(--border-card); border-radius: var(--radius-sm); color: var(--text-primary); font-size: 14px; font-family: var(--font-mono); outline: none; transition: border-color var(--transition); }
.bt-input:focus { border-color: var(--accent-blue); }

.bt-group { margin-bottom: 12px; }
.bt-group-header { font-weight: 600; margin-bottom: 4px; }
.bt-group-items { padding-left: 8px; }
.bt-checkbox { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); cursor: pointer; padding: 3px 0; }
.bt-checkbox input[type="checkbox"] { accent-color: var(--accent-blue); width: 14px; height: 14px; cursor: pointer; }

.bt-run-btn { width: 100%; margin-top: 8px; padding: 12px; font-size: 15px; font-weight: 600; }
.bt-run-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.bt-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.bt-stat-box { padding: 16px; text-align: center; }
.bt-stat-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.bt-stat-value { font-size: 20px; font-weight: 700; font-family: var(--font-mono); }

@media (max-width: 1024px) {
  .backtest-layout { flex-direction: column; }
  .config-panel { width: 100%; min-width: unset; position: static; }
  .bt-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-inner { padding: 0 16px; }
  #app { padding: 72px 16px 32px; }
  .hero-value { font-size: 40px; }
  .stats-row { flex-direction: column; align-items: center; }
  .accounts-grid { grid-template-columns: 1fr; }
}

/* Account Drawer (full-screen detail overlay) */
.drawer-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(20,20,30,0.32); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
  display: flex; justify-content: flex-end;
}
.drawer-overlay.visible { opacity: 1; pointer-events: auto; }
.drawer-panel {
  width: min(1100px, 92vw); height: 100vh;
  padding: 0; border-radius: 0;
  background: rgba(15,15,25,0.95);
  border-left: 1px solid var(--border-card);
  display: flex; flex-direction: column;
  transform: translateX(40px); transition: transform 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
  overflow: hidden;
}
.drawer-overlay.visible .drawer-panel { transform: translateX(0); }
.drawer-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 28px; border-bottom: 1px solid var(--border-card);
  flex-shrink: 0;
}
.drawer-title { display: flex; align-items: center; gap: 14px; }
.drawer-title .account-badge { font-size: 15px; padding: 6px 14px; }
.drawer-close {
  background: transparent; border: none; color: var(--text-secondary);
  font-size: 28px; line-height: 1; cursor: pointer; width: 36px; height: 36px;
  border-radius: 8px; transition: var(--transition);
}
.drawer-close:hover { background: rgba(0,0,0,0.06); color: var(--text-primary); }
.drawer-body { flex: 1; overflow-y: auto; padding: 24px 28px 40px; }
.drawer-grid {
  display: grid; gap: 24px;
  grid-template-columns: 1fr 1fr;
  grid-template-areas:
    "equity equity"
    "factors factors"
    "positions trades";
}
.drawer-section:nth-child(1) { grid-area: equity; }
.drawer-section:nth-child(2) { grid-area: factors; }
.drawer-section:nth-child(3) { grid-area: positions; }
.drawer-section:nth-child(4) { grid-area: trades; }
.drawer-section {
  background: rgba(0,0,0,0.03);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 18px;
}
.factor-name { font-size: 13px; font-weight: 600; color: var(--accent-blue); margin-bottom: 4px; letter-spacing: 0.02em; }
.factor-gp {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary);
  background: rgba(0,0,0,0.04); padding: 10px 12px; border-radius: 6px;
  white-space: pre-wrap; word-break: break-all; margin: 0;
}
@media (max-width: 900px) {
  .drawer-panel { width: 100vw; }
  .drawer-grid { grid-template-columns: 1fr; grid-template-areas: "equity" "factors" "positions" "trades"; }
}

/* composite factor block */

/* ============ Backtest page ============ */
.backtest-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
}
.config-panel {
  padding: 18px 20px;
  border-radius: 12px;
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}
.results-panel { min-width: 0; }
.bt-field { margin-bottom: 14px; }
.bt-field label { display: block; font-size: 11px; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
.bt-input {
  width: 100%;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.08);
  color: var(--text-primary);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font-mono);
}
.bt-input:focus { outline: none; border-color: var(--accent-blue); }
.bt-run-btn { width: 100%; margin-top: 10px; }
.bt-group { margin-bottom: 10px; }
.bt-group-header {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600;
  color: var(--text-secondary);
  padding: 6px 0;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.bt-group-items { display: flex; flex-direction: column; gap: 4px; padding-left: 6px; }
.bt-checkbox {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-primary);
  padding: 3px 0;
  cursor: pointer;
}
.bt-checkbox input { cursor: pointer; }
.bt-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.bt-stat-box {
  padding: 12px 14px;
  border-radius: 10px;
  display: flex; flex-direction: column; gap: 4px;
}
.bt-stat-label { font-size: 10.5px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.08em; }
.bt-stat-value { font-family: var(--font-mono); font-size: 17px; font-weight: 600; }
.bt-acct-row {
  cursor: pointer;
  transition: background 0.12s ease;
}
.bt-acct-row:hover { background: rgba(0,212,255,0.06); }
.bt-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(20,20,30,0.36);
  z-index: 500;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.bt-modal-panel {
  width: min(1100px, 94vw);
  max-height: 88vh;
  display: flex; flex-direction: column;
  border-radius: 14px;
  overflow: hidden;
  background: rgba(15,15,25,0.98);
  border: 1px solid var(--border-card);
  box-shadow: 0 24px 64px rgba(20,20,30,0.32), 0 0 0 1px rgba(0,0,0,0.05);
  backdrop-filter: none; -webkit-backdrop-filter: none;
}
.bt-modal-panel:hover {
  transform: none;
  background: rgba(15,15,25,0.98);
  border-color: var(--border-card);
  box-shadow: 0 24px 64px rgba(20,20,30,0.32), 0 0 0 1px rgba(0,0,0,0.05);
}
.bt-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px 12px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.bt-modal-close {
  background: transparent; border: none; color: var(--text-secondary);
  font-size: 22px; width: 32px; height: 32px; border-radius: 6px;
  cursor: pointer;
}
.bt-modal-close:hover { background: rgba(0,0,0,0.06); color: var(--text-primary); }
.bt-modal-body { padding: 14px 20px 18px; overflow: auto; }

/* Floating hover tooltip on equity chart (backtest + trade row) */
.bt-hover-tip,
.row-chart-tip {
  position: absolute;
  z-index: 10;
  min-width: 200px; max-width: 320px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 10px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 12px 32px rgba(31,38,72,0.18);
  font-size: 11.5px; line-height: 1.5;
  color: var(--text-primary);
  pointer-events: none;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
}
.bt-hover-tip .tip-ts,
.row-chart-tip .tip-ts {
  font-family: var(--font-mono);
  font-size: 10.5px; color: var(--text-secondary);
  margin-bottom: 6px;
}
.bt-hover-tip .tip-summary,
.row-chart-tip .tip-summary {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-primary); margin-bottom: 6px;
  padding-bottom: 6px; border-bottom: 1px dashed rgba(0,0,0,0.08);
}
.bt-hover-tip .tip-empty,
.row-chart-tip .tip-empty {
  color: var(--text-tertiary); font-size: 11px; padding: 4px 0;
}
.bt-hover-tip .tip-ticker,
.row-chart-tip .tip-ticker { font-weight: 600; letter-spacing: 0.3px; }
.bt-hover-tip .tip-trade,
.row-chart-tip .tip-trade {
  padding: 4px 0;
  border-top: 1px dashed rgba(0,0,0,0.06);
}
.bt-hover-tip .tip-trade:first-of-type,
.row-chart-tip .tip-trade:first-of-type { border-top: none; }
.bt-hover-tip .tip-trade-head,
.row-chart-tip .tip-trade-head {
  display: flex; gap: 8px; align-items: center;
  font-size: 12px;
}
.bt-hover-tip .tip-trade-meta,
.row-chart-tip .tip-trade-meta {
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--text-secondary); margin-top: 2px;
}
.bt-hover-tip .tip-pnl,
.row-chart-tip .tip-pnl {
  font-family: var(--font-mono); font-size: 11px;
  margin-top: 2px;
}
.bt-hover-tip .tip-hold,
.row-chart-tip .tip-hold {
  display: grid;
  grid-template-columns: 54px 1fr auto;
  gap: 6px;
  align-items: center;
  font-size: 11px;
  padding: 2px 0;
}
.bt-hover-tip .tip-hold-meta,
.row-chart-tip .tip-hold-meta {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.bt-hover-tip .tip-hold-pnl,
.row-chart-tip .tip-hold-pnl {
  font-family: var(--font-mono); font-size: 11px;
}

@media (max-width: 900px) {
  .backtest-layout { grid-template-columns: 1fr; }
  .config-panel { position: static; max-height: none; }
}

/* ========== Live Event Stream ========== */
.events-card {
  padding: 0;
  max-height: 640px;
  overflow-y: auto;
  background: rgba(255,255,255,0.55);
  scrollbar-width: thin;
  scrollbar-color: rgba(0,0,0,0.2) transparent;
}
.events-footer {
  text-align: center;
  padding: 12px 18px;
  font-size: 12px;
  color: var(--text-tertiary);
  font-style: italic;
  border-top: 1px solid rgba(0,113,227,0.08);
  background: rgba(255,255,255,0.40);
}
.events-footer-end { color: var(--text-secondary); }
.events-card::-webkit-scrollbar { width: 8px; }
.events-card::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.18); border-radius: 4px; }
.events-card::-webkit-scrollbar-track { background: transparent; }

.events-list { display: flex; flex-direction: column; }
.events-empty {
  padding: 24px; text-align: center;
  color: var(--text-tertiary); font-size: 13px;
}
.events-status {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-secondary);
}

.ev-row {
  display: grid;
  grid-template-columns: 14px auto auto 1fr auto;
  align-items: baseline;
  gap: 10px;
  padding: 11px 18px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-primary);
  transition: background 0.2s ease;
  position: relative;
}
.ev-row:nth-child(odd)  { background: rgba(255,255,255,0.40); }
.ev-row:nth-child(even) { background: rgba(0,113,227,0.06); }
.ev-row + .ev-row { border-top: 1px solid rgba(0, 113, 227, 0.10); }
.ev-row:hover { background: rgba(0, 113, 227, 0.14) !important; }

.ev-dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block;
  align-self: center;
  background: var(--accent-blue);
  flex-shrink: 0;
}
.ev-time {
  font-family: 'SF Mono', 'JetBrains Mono', Consolas, monospace;
  font-size: 11.5px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.ev-cat {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(0, 212, 255, 0.10);
  color: var(--accent-blue);
  border: 1px solid rgba(0, 212, 255, 0.2);
  white-space: nowrap;
}
.ev-title {
  color: var(--text-primary);
  word-break: break-word;
}
.ev-tag {
  font-size: 11px;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'JetBrains Mono', Consolas, monospace;
  background: rgba(0,0,0,0.05);
  padding: 1px 6px;
  border-radius: 3px;
  white-space: nowrap;
}

/* Severity tints */
.ev-row.ev-sev-warn .ev-cat,
.ev-row.ev-sev-warning .ev-cat {
  background: rgba(255, 183, 77, 0.10);
  color: #ffb74d; border-color: rgba(255, 183, 77, 0.25);
}
.ev-row.ev-sev-warn,
.ev-row.ev-sev-warning {
  background: rgba(255, 183, 77, 0.06);
  border-left: 3px solid rgba(255, 183, 77, 0.55);
  padding-left: 10px;
}
.ev-row.ev-sev-error .ev-cat {
  background: rgba(248, 113, 113, 0.12);
  color: #f87171; border-color: rgba(248, 113, 113, 0.3);
}
.ev-row .ev-detail {
  display: block;
  margin-left: 28px; margin-top: 2px;
  font-size: 0.78rem; opacity: 0.7; font-style: italic;
}

/* Retired-account pill — used in backtest checkboxes, factor headers, etc. */
.retired-pill {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.35);
  vertical-align: middle;
}
.bt-account-retired { opacity: 0.6; }

/* Highlight newly-arrived rows briefly */
@keyframes ev-flash {
  0%   { background: rgba(0, 212, 255, 0.18); }
  100% { background: transparent; }
}
.ev-row.ev-new { animation: ev-flash 1.6s ease-out; }

@media (max-width: 700px) {
  .ev-row {
    grid-template-columns: 12px auto auto 1fr;
    grid-template-areas: "dot time cat title" "dot tag tag tag";
    row-gap: 4px;
  }
  .ev-tag { grid-area: tag; }
}

/* ===== Market tabs (CN/US) ===== */
.market-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  background: rgba(0,0,0,0.05);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 999px;
  margin: 0 14px;
}
.market-tab {
  background: transparent;
  border: 0;
  color: rgba(255,255,255,0.65);
  font: 600 12px/1 'Inter', system-ui, sans-serif;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: background 0.15s, color 0.15s, transform 0.15s;
}
.market-tab:hover { color: var(--text-primary); }
.market-tab.active {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
  color: var(--text-primary);
  box-shadow: 0 0 12px rgba(0,212,255,0.35);
}
.market-tab-cur {
  font-weight: 700;
  margin-left: 4px;
  opacity: 0.85;
}
.market-badge {
  font: 600 11px/1 'Inter', system-ui, sans-serif;
  letter-spacing: 0.06em;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(0,0,0,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  margin-right: 8px;
}


/* === Account tabs (Active / Retired) === */
.account-tabs {
  display: flex;
  gap: 4px;
  margin: 16px 0 16px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.account-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.04em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.account-tab:hover { color: var(--text-primary); }
.account-tab.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}
.account-tab .tab-count {
  display: inline-block;
  min-width: 22px;
  padding: 1px 7px;
  border-radius: 11px;
  background: rgba(0,0,0,0.08);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
}
.account-tab.active .tab-count {
  background: var(--accent-blue);
  color: #0a0a0f;
}

/* === Tombstone wall === */
.tombstone-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 18px;
  margin-top: 8px;
  padding: 24px 0;
}
.tombstone-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-style: italic;
}
.tombstone {
  position: relative;
  background: linear-gradient(180deg, #2a2d38 0%, #1a1c25 70%, #14161d 100%);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 14px 14px 6px 6px / 80px 80px 6px 6px;
  padding: 24px 14px 16px;
  text-align: center;
  cursor: pointer;
  box-shadow:
    inset 0 2px 0 rgba(0,0,0,0.06),
    0 6px 18px rgba(31,38,72,0.18),
    0 1px 2px rgba(31,38,72,0.14);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s;
  font-family: 'Inter', serif;
  color: #c8ccd6;
}
.tombstone:hover {
  transform: translateY(-3px);
  border-color: rgba(0,0,0,0.18);
  box-shadow:
    inset 0 2px 0 rgba(0,0,0,0.08),
    0 12px 28px rgba(20,20,30,0.32),
    0 2px 4px rgba(31,38,72,0.14);
}
.tombstone-cross {
  font-size: 1.6rem;
  color: rgba(255,255,255,0.35);
  margin-bottom: 4px;
  line-height: 1;
}
.tombstone-rip {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: rgba(255,255,255,0.45);
  margin-bottom: 10px;
}
.tombstone-id {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.tombstone-strat {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  min-height: 1.1em;
  font-style: italic;
}
.tombstone-dates {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.tombstone-return {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
}
.tombstone-return.positive { color: #4ade80; }
.tombstone-return.negative { color: #f87171; }
.tombstone-epitaph {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
  font-style: italic;
  line-height: 1.4;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding-top: 8px;
  margin-top: 4px;
  min-height: 2.4em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === Tombstone modal === */
.tombstone-modal {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
}
.tombstone-modal.open { display: flex; }
.tombstone-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8,9,15,0.78);
  backdrop-filter: blur(6px);
  z-index: -1;
}
.tombstone-modal-body {
  position: relative;
  background: #ffffff;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  width: 100%;
  max-width: 1100px;
  padding: 28px 32px 36px;
  box-shadow: 0 24px 60px rgba(20,20,30,0.40);
}
.tombstone-modal-loading {
  padding: 80px 20px;
  text-align: center;
  color: var(--text-secondary);
}
.tombstone-modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.5);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.tombstone-modal-close:hover {
  color: var(--text-primary);
  background: rgba(0,0,0,0.08);
}
.tomb-modal-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  margin-bottom: 24px;
}
.tomb-modal-cross {
  font-size: 3rem;
  color: rgba(255,255,255,0.35);
  line-height: 1;
}
.tomb-modal-rip {
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}
.tomb-modal-id {
  font-size: 2rem;
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.tomb-modal-strat {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  font-style: italic;
}
.tomb-modal-dates {
  font-size: 0.92rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}
.tomb-modal-days { color: var(--text-tertiary); margin-left: 4px; }
.tomb-modal-return { text-align: right; }
.tomb-modal-return-label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}
.tomb-modal-return-value {
  font-size: 2rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.tomb-modal-return.positive .tomb-modal-return-value { color: #4ade80; }
.tomb-modal-return.negative .tomb-modal-return-value { color: #f87171; }

.tomb-modal-eulogy {
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 24px;
}
.tomb-section-title {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.tomb-eulogy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px 24px;
  font-size: 0.88rem;
  color: var(--text-primary);
}
.tomb-eulogy-grid .tomb-k,
.tomb-desc .tomb-k,
.tomb-cause-of-death .tomb-k {
  color: var(--text-tertiary);
  margin-right: 6px;
}
.tomb-desc {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.05);
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.tomb-cause-of-death {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.05);
  font-size: 0.92rem;
  color: #ffb74d;
}
.tomb-modal-section {
  margin-bottom: 28px;
}

@media (max-width: 720px) {
  .tomb-modal-header { grid-template-columns: 1fr; text-align: center; }
  .tomb-modal-cross { margin: 0 auto; }
  .tomb-modal-return { text-align: center; }
  .tombstone-modal-body { padding: 22px 16px 28px; }
}


/* === Backtest: Qlib status banner === */
.qst-banner {
  background: linear-gradient(135deg, rgba(255,183,77,0.08), rgba(123,47,247,0.05));
  border: 1px solid rgba(255,183,77,0.25);
  border-radius: 12px;
  margin-bottom: 18px;
  overflow: hidden;
}
.qst-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
  flex-wrap: wrap;
}
.qst-header:hover { background: rgba(0,0,0,0.04); }
.qst-pill {
  background: rgba(255,183,77,0.18);
  color: #ffb74d;
  border: 1px solid rgba(255,183,77,0.4);
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}
.qst-summary {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.qst-summary b { color: var(--text-primary); }
.qst-arrow {
  color: var(--text-tertiary);
  font-size: 1rem;
}
.qst-body {
  padding: 4px 18px 18px;
  border-top: 1px solid rgba(0,0,0,0.06);
  font-size: 0.85rem;
  color: var(--text-primary);
  line-height: 1.6;
}
.qst-intro {
  padding: 12px 14px;
  margin: 14px 0;
  background: rgba(0,212,255,0.06);
  border-left: 3px solid var(--accent-blue);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.qst-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 16px;
}
@media (max-width: 720px) { .qst-grid { grid-template-columns: 1fr; } }
.qst-section {
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
.qst-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.qst-list, .qst-todo, .qst-done-list {
  margin: 0;
  padding-left: 18px;
  font-size: 0.82rem;
}
.qst-list li { margin-bottom: 6px; }
.qst-desc {
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 400;
}
.qst-todo { list-style: none; padding-left: 0; }
.qst-todo li {
  margin-bottom: 4px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.qst-check { flex-shrink: 0; }
.qst-todo .qst-done {
  color: var(--text-tertiary);
  text-decoration: line-through;
  text-decoration-color: rgba(255,255,255,0.2);
}
.qst-todo .qst-pending { color: var(--text-primary); }
.qst-plan-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.qst-plan-meta {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}
.qst-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 6px;
}
.qst-table th, .qst-table td {
  padding: 5px 8px;
  text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.qst-table th {
  color: var(--text-tertiary);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.qst-table .qst-num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.qst-table .qst-empty {
  color: var(--text-tertiary);
  font-style: italic;
  text-align: center;
}
.qst-coverage-note {
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-style: italic;
}
.qst-done-list { color: var(--text-secondary); font-size: 0.82rem; }
.qst-done-list li { margin-bottom: 3px; }

/* Q-account checkbox blocked state */
.bt-account-qlib-blocked {
  opacity: 0.55;
  cursor: not-allowed !important;
}
.bt-account-qlib-blocked input[type="checkbox"] {
  cursor: not-allowed !important;
}
.qlib-block-pill {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 7px;
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(255,183,77,0.15);
  color: #ffb74d;
  border: 1px solid rgba(255,183,77,0.3);
  border-radius: 9px;
  letter-spacing: 0.04em;
}


/* ============ Intro / README markdown page ============ */
.intro-section { max-width: 920px; margin: 0 auto; }
.intro-card { padding: 48px 56px; }
.intro-body { color: var(--text-primary); font-size: 15.5px; line-height: 1.7; }
.intro-body h1, .intro-body h2, .intro-body h3, .intro-body h4 {
  font-weight: 700; letter-spacing: -0.02em; color: var(--text-primary);
  margin: 1.6em 0 0.6em;
}
.intro-body h1 { font-size: 36px; margin-top: 0; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.intro-body h2 { font-size: 26px; padding-bottom: 6px;
  border-bottom: 1px solid rgba(0,0,0,0.08); }
.intro-body h3 { font-size: 19px; }
.intro-body h4 { font-size: 16px; color: var(--text-secondary); }
.intro-body p { margin: 0.7em 0; }
.intro-body blockquote {
  margin: 1em 0; padding: 10px 16px;
  background: rgba(0,113,227,0.06);
  border-left: 3px solid var(--accent-blue);
  border-radius: 6px; color: var(--text-secondary);
  font-size: 14.5px;
}
.intro-body ul, .intro-body ol { margin: 0.6em 0 0.6em 1.6em; }
.intro-body li { margin: 0.25em 0; }
.intro-body code {
  font-family: var(--font-mono); font-size: 0.88em;
  background: rgba(0,0,0,0.06); padding: 2px 6px; border-radius: 4px;
  color: #b3185f;
}
.intro-body pre {
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.55;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 10px; padding: 14px 16px;
  overflow-x: auto; margin: 1em 0;
}
.intro-body pre code { background: none; padding: 0; color: var(--text-primary); }
.intro-body table {
  width: 100%; border-collapse: collapse; margin: 1em 0;
  font-size: 14px;
}
.intro-body table th, .intro-body table td {
  padding: 8px 12px; text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.intro-body table th {
  background: rgba(0,0,0,0.03); font-weight: 600;
  color: var(--text-primary);
}
.intro-body hr {
  border: none; height: 1px;
  background: rgba(0,0,0,0.08); margin: 2em 0;
}
.intro-body a { color: var(--accent-blue); text-decoration: none; }
.intro-body a:hover { text-decoration: underline; }
.intro-body strong { font-weight: 700; color: var(--text-primary); }


/* ============ Mobile / iPhone Safari nav (<=768px) ============ */
@media (max-width: 768px) {
  .nav-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: 56px;
    padding: 8px 12px;
    row-gap: 8px;
    column-gap: 8px;
  }
  .logo { order: 1; flex: 0 0 auto; }
  .logo-text { font-size: 15px; }
  .nav-status { order: 2; flex: 0 0 auto; margin-left: auto; gap: 8px; }
  /* Hide redundant text: badge + 'Live' label — keep dot + lang select */
  .market-badge { display: none; }
  .live-text { display: none; }
  .nav-links {
    order: 4;
    flex: 1 1 100%;
    justify-content: center;
    gap: 4px;
    width: 100%;
    border-top: 1px solid rgba(0,0,0,0.06);
    padding-top: 8px;
  }
  .nav-link {
    /* Apple HIG: 44x44pt minimum tap target */
    padding: 10px 12px;
    min-height: 40px;
    display: flex;
    align-items: center;
    font-size: 13px;
  }
  .market-tabs {
    order: 3;
    flex: 0 0 auto;
    gap: 4px;
  }
  .market-tab {
    padding: 8px 12px;
    min-height: 36px;
    font-size: 12px;
  }
  .lang-select {
    padding: 8px 10px;
    min-height: 36px;
    font-size: 13px;
  }
  /* Push main content down — nav is now ~110px tall */
  #app { padding-top: 124px; padding-left: 16px; padding-right: 16px; }
}

@media (max-width: 480px) {
  .logo-text { display: none; }   /* logo icon only on tiny screens */
  .nav-link { font-size: 12.5px; padding: 10px 10px; }
  .market-tab { padding: 8px 10px; }
  .market-tab-cur { display: none; }  /* Hide '$' / '¥' suffix */
  .intro-card { padding: 28px 20px; }
  .intro-body h1 { font-size: 26px; }
  .intro-body h2 { font-size: 20px; }
  .intro-body { font-size: 14.5px; }
  /* Tables overflow gracefully on narrow screens */
  .intro-body table { display: block; overflow-x: auto; }
}

/* ============== Explore section ============== */
.explore-section { padding: 32px 0; }
.explore-header { margin-bottom: 28px; }
.explore-title {
  font-size: 36px; font-weight: 800; margin: 0 0 8px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.explore-tagline { color: var(--text-secondary); font-size: 15px; margin: 0; }
.explore-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}
.explore-card {
  display: flex; flex-direction: column; overflow: hidden;
  text-decoration: none; color: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  cursor: pointer; padding: 0;
}
.explore-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(31,38,72,0.12);
}
.explore-card-img {
  width: 100%; height: 180px; overflow: hidden;
  background: #f5f5f7;
  border-bottom: 1px solid var(--border-card);
}
.explore-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.explore-card-body { padding: 20px 22px 22px; }
.explore-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-tertiary);
  margin-bottom: 8px;
}
.explore-card-cat {
  color: var(--accent-blue); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.explore-card-title {
  font-size: 18px; font-weight: 700; line-height: 1.35;
  margin: 4px 0 10px; color: var(--text-primary);
}
.explore-card-summary {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.55; margin: 0 0 14px;
}
.explore-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.explore-tag {
  font-size: 11px; padding: 3px 9px; border-radius: 999px;
  background: rgba(0,113,227,0.08);
  color: var(--accent-blue);
  font-weight: 500;
}

/* Single post page */
.explore-post-section { padding: 24px 0 48px; }
.explore-back {
  display: inline-block; margin-bottom: 18px;
  color: var(--accent-blue); text-decoration: none;
  font-size: 14px; font-weight: 500;
}
.explore-back:hover { text-decoration: underline; }
.explore-post-card { padding: 48px 56px; max-width: 880px; margin: 0 auto; }
.explore-post-body img {
  max-width: 100%; height: auto; display: block;
  margin: 24px auto; border-radius: 8px;
  box-shadow: 0 4px 16px rgba(31,38,72,0.10);
}

@media (max-width: 768px) {
  .explore-post-card { padding: 28px 22px; }
  .explore-list { grid-template-columns: 1fr; }
  .explore-title { font-size: 28px; }
}


/* ==================== Symbols tab ==================== */
.symbols-page { padding: 24px 0 48px; }
.symbols-card { padding: 0; overflow: hidden; }
.symbols-toolbar {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 22px; border-bottom: 1px solid rgba(0,0,0,0.06);
  background: rgba(255,255,255,0.55);
}
.sym-search-input {
  flex: 1; height: 40px; padding: 0 14px;
  border: 1px solid rgba(0,0,0,0.12); border-radius: 10px;
  background: rgba(255,255,255,0.85); color: var(--text-primary);
  font-size: 14px; outline: none; transition: border-color .15s;
}
.sym-search-input:focus { border-color: var(--accent-blue); }
.sym-count { font-size: 12px; color: var(--text-secondary); white-space: nowrap; }

.sym-table { display: flex; flex-direction: column; }
.sym-row {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr 1fr;
  align-items: center; padding: 10px 22px; gap: 10px;
  text-decoration: none; color: var(--text-primary);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: background .12s;
}
.sym-row-head {
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--text-secondary);
  background: rgba(255,255,255,0.40);
  position: sticky; top: 0; z-index: 1;
}
.sym-row-body:hover { background: rgba(0,113,227,0.06); cursor: pointer; }
.sym-cell-tk { display: flex; flex-direction: column; gap: 2px; }
.sym-tk-code { font-weight: 600; font-size: 14px; }
.sym-tk-name { font-size: 12px; color: var(--text-secondary); }
.sym-cell-num { text-align: right; font-variant-numeric: tabular-nums; font-size: 13px; }
.sym-cell-ts { color: var(--text-secondary); }

/* detail */
.sym-back {
  display: inline-block; margin-bottom: 14px;
  color: var(--accent-blue); text-decoration: none; font-weight: 500;
}
.sym-back:hover { text-decoration: underline; }
.sym-detail-name { font-size: 18px; color: var(--text-secondary); margin-left: 12px; font-weight: 400; }

.sym-stat-row {
  display: flex; flex-wrap: wrap; gap: 28px; margin-top: 14px;
}
.sym-stat { min-width: 120px; }
.sym-stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-secondary); margin-bottom: 4px; }
.sym-stat-val { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }

.sym-chart-legend { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 4px 4px; }
.sym-legend-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(255,255,255,0.55); border: 1px solid rgba(0,0,0,0.06);
  font-size: 12px;
}
.sym-legend-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c); }

.sym-chart-tip {
  position: absolute; pointer-events: none; z-index: 5;
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 8px 24px rgba(31,38,72,0.18);
  backdrop-filter: blur(20px) saturate(180%);
  border-radius: 10px; padding: 10px 12px; font-size: 12px;
  color: var(--text-primary); min-width: 160px;
}
.sym-chart-tip .tip-head { font-weight: 600; margin-bottom: 4px; }
.sym-chart-tip .tip-sep { height: 1px; background: rgba(0,0,0,0.08); margin: 6px 0; }
.sym-chart-tip .tip-tr { line-height: 1.6; }

.sym-acct-table { display: flex; flex-direction: column; }
.sym-arow {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 0.7fr 1fr 1fr 1fr 0.8fr 1.2fr;
  gap: 10px; align-items: center; padding: 10px 6px;
  border-bottom: 1px solid rgba(0,0,0,0.05); font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.sym-arow-head { font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-secondary); }
.sym-arow .num { text-align: right; }
.sym-acct-link { color: var(--text-primary); text-decoration: none; font-weight: 600; }
.sym-acct-link:hover { color: var(--accent-blue); }
.sym-strat { color: var(--text-secondary); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sym-grp { display: inline-block; margin-left: 6px; padding: 1px 6px; border-radius: 4px; font-size: 10px; font-weight: 600; background: rgba(0,113,227,0.10); color: var(--accent-blue); }
.sym-grp.grp-A { background: rgba(0,170,255,0.12); color: #0080cc; }
.sym-grp.grp-B { background: rgba(179,136,255,0.16); color: #6c4bd1; }
.sym-grp.grp-Q { background: rgba(52,211,153,0.16); color: #1f9d6c; }
.sym-grp.grp-IDX { background: rgba(255,183,77,0.18); color: #c47a00; }

@media (max-width: 768px) {
  .sym-row { grid-template-columns: 2fr 0.8fr 0.8fr 1.2fr; }
  .sym-row > .sym-cell-ts { display: none; }
  .sym-arow { grid-template-columns: 1fr 1fr 1fr 1fr; font-size: 12px; }
  .sym-arow > div:nth-child(n+5) { display: none; }
  .sym-arow-head > div:nth-child(n+5) { display: none; }
}


/* Symbols — expanded per-trade ledger */
.sym-arow-body { cursor: pointer; }
.sym-arow-body:hover { background: rgba(0,113,227,0.05); }
.sym-acct-toggle {
  display: inline-block; width: 14px; color: var(--text-secondary);
  font-size: 11px; transition: transform .15s; margin-right: 2px;
}
.sym-arow-body.expanded .sym-acct-toggle { transform: rotate(90deg); color: var(--accent-blue); }
.sym-arow-detail {
  background: rgba(0,113,227,0.04);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding: 12px 18px 16px;
}
.sym-ledger-card { font-size: 12.5px; }
.sym-ledger-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-secondary);
  margin-bottom: 8px; padding: 0 4px;
}
.sym-ledger-table { display: flex; flex-direction: column; }
.sym-ledger-row {
  display: grid;
  grid-template-columns: 1.5fr 0.6fr 0.6fr 0.8fr 0.9fr 0.6fr 1.4fr 1.2fr;
  gap: 10px; align-items: center;
  padding: 6px 6px; border-radius: 6px;
  font-variant-numeric: tabular-nums;
}
.sym-ledger-row + .sym-ledger-row { border-top: 1px solid rgba(0,0,0,0.04); }
.sym-ledger-row .num { text-align: right; }
.sym-ledger-head-row {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--text-secondary);
  background: rgba(255,255,255,0.55);
}
.sym-ledger-side { font-weight: 600; font-size: 11px; }
.sym-ledger-ts { color: var(--text-secondary); font-size: 11.5px; }
.sym-ledger-pos { color: var(--text-secondary); font-size: 11.5px; }
.sym-ledger-match { color: var(--text-tertiary); font-size: 10.5px; margin-left: 4px; }
.sym-ledger-empty { color: var(--text-secondary); padding: 8px; font-size: 12px; }

@media (max-width: 768px) {
  .sym-ledger-row { grid-template-columns: 1.5fr 0.6fr 0.7fr 1fr 1fr; font-size: 11px; }
  .sym-ledger-row > div:nth-child(n+6) { display: none; }
}