:root {
  --bg: #0b0f14;
  --surface: #121820;
  --surface-2: #18212c;
  --text: #e8edf2;
  --muted: #8b9bb4;
  --border: #243140;
  --accent: #4da3ff;
  --positive: #3ddc97;
  --negative: #ff5c7a;
  --bid: var(--positive);
  --ask: var(--negative);
  --warning: #f5c542;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

[data-theme="light"] {
  --bg: #f3f6fa;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #122033;
  --muted: #5b6b80;
  --border: #d5deea;
  --accent: #1d6fd8;
  --positive: #0f9f62;
  --negative: #d63b58;
  --warning: #b8860b;
  --shadow: 0 8px 24px rgba(18, 32, 51, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1.1rem 2rem;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1rem;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

h1, h2, h3 {
  margin: 0.15rem 0 0;
}

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

.header-actions a.theme-btn {
  text-decoration: none;
}

.scrip-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 0.7rem;
}

.scrip-search {
  position: relative;
  display: flex;
  gap: 0.35rem;
  align-items: center;
  flex: 1;
  min-width: 240px;
}

.scrip-search input {
  flex: 1;
  min-width: 180px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
}

.scrip-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 30;
  list-style: none;
  margin: 0;
  padding: 0.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  max-height: 280px;
  overflow-y: auto;
}

.scrip-results li {
  margin: 0;
}

.scrip-results li button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--text);
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
}

.scrip-results li button:hover,
.scrip-results li button:focus {
  background: var(--surface-2);
}

.scrip-meta {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.watchlist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1rem;
}

.watchlist-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  margin-right: 0.3rem;
}

.watch-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.28rem 0.75rem;
  font-size: 0.88rem;
}

.watch-chip a {
  color: inherit;
  text-decoration: none;
}

.watch-chip small {
  opacity: 0.75;
  font-size: 0.72em;
  margin-left: 0.15rem;
}

.watch-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.chip-remove {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0 0.1rem;
  margin-left: 0.1rem;
  cursor: pointer;
  line-height: 1;
  font-size: 1rem;
}

.refresh-label, .theme-btn, select, button {
  color: var(--text);
}

select, .theme-btn, .chart-types button, .timeframe-row button {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
}

.card-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}

.stock-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.stock-header-body {
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(0, 1.5fr);
  gap: 0.85rem 1.4rem;
  align-items: stretch;
  margin-top: 0.7rem;
}

.stock-header .ohlc-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
  align-content: stretch;
}

.stock-header .ohlc-grid div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 0.55rem 0.7rem;
}

.stock-header .ohlc-grid strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.exchange-chip {
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  font-size: 0.85rem;
}

.last-price {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 700;
  margin-top: 0;
  line-height: 1.1;
}

.price-change {
  font-size: 1.15rem;
  margin: 0.2rem 0 0.4rem;
}

.positive { color: var(--positive); }
.negative { color: var(--negative); }

.session-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

.meta-row, .ohlc-grid, .stats-grid, .depth-metrics, .status-panel {
  display: grid;
  gap: 0.75rem;
}

.meta-row {
  grid-template-columns: 1fr;
  color: var(--muted);
  margin: 0.55rem 0 0;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.ohlc-grid, .stats-grid, .depth-metrics {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.ohlc-grid div, .stats-grid div, .depth-metrics div {
  background: var(--surface-2);
  border-radius: 10px;
  padding: 0.7rem;
}

.ohlc-grid span, .stats-grid div, .depth-metrics div {
  color: var(--muted);
  font-size: 0.8rem;
}

.ohlc-grid strong, .stats-grid strong, .depth-metrics strong {
  display: block;
  color: var(--text);
  font-size: 1.05rem;
  margin-top: 0.2rem;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: 1rem;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.7rem;
}

.timeframe-row, .chart-types {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.55rem;
}

.timeframe-row button.active, .chart-types button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.chart-canvas {
  height: 420px;
  width: 100%;
}

.ohlc-readout {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.82rem;
  color: var(--muted);
  min-height: 1.2rem;
  margin-bottom: 0.4rem;
}

.chart-tz-note {
  margin: 0.45rem 0 0;
  font-size: 0.78rem;
}

.unavailable-box {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 1.4rem 1rem;
  text-align: center;
  color: var(--muted);
  line-height: 1.6;
}

.book-labels, .book-row {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(3.6rem, 0.7fr) 6.4rem;
  gap: 0.4rem;
  align-items: center;
}

.book-head-single {
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}

.ask-head { color: var(--ask); }
.bid-head { color: var(--bid); }

.book-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 0.35rem;
  padding: 0.35rem 0.4rem 0.1rem;
  border-top: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}

.book-total span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
}

.book-total strong {
  font-size: 0.95rem;
}

.ask-total strong { color: var(--ask); }
.bid-total strong { color: var(--bid); }

.book-labels {
  color: var(--muted);
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
}

.book-spread-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  margin: 0.55rem 0;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.8rem;
}

.book-spread-bar strong {
  color: var(--text);
}

.book-row {
  padding: 0.12rem 0;
  font-variant-numeric: tabular-nums;
  min-width: 0;
}

.book-labels span:nth-child(2),
.book-labels span:nth-child(3),
.price-value,
.sr-label {
  text-align: right;
}

.qty-cell {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 1.55rem;
  padding: 0.12rem 0.4rem;
  overflow: hidden;
}

.qty-track,
.qty-bar {
  position: absolute;
  inset: 0;
  border-radius: 4px;
}

.qty-track {
  background: var(--surface-2);
}

.qty-bar {
  right: auto;
  width: 0;
}

.qty-value {
  position: relative;
  z-index: 1;
  font-size: 0.86rem;
  white-space: nowrap;
}

.price-value {
  white-space: nowrap;
}

.sr-label {
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 1em;
}

.ask-row .sr-label { color: var(--ask); }
.bid-row .sr-label { color: var(--bid); }

.sr-label.sr-key {
  font-weight: 700;
  opacity: 1;
}

.bid-row .qty-bar { background: var(--bid); opacity: 0.38; }
.ask-row .qty-bar { background: var(--ask); opacity: 0.38; }

.bid-row { color: var(--bid); }
.ask-row { color: var(--ask); }

.status-panel {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: center;
}

.status-dot {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--muted);
  margin-right: 0.3rem;
}

.status-dot.live, .status-dot.demo { background: var(--warning); }
.status-dot.delayed { background: var(--accent); }
.status-dot.open { background: var(--positive); }
.status-dot.offline, .status-dot.data_unavailable { background: var(--negative); }
.status-dot.connecting { background: var(--muted); }

.demo-banner, .error-banner {
  border-radius: 12px;
  padding: 0.7rem 1rem;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
}

.demo-banner {
  background: rgba(245, 197, 66, 0.15);
  color: var(--warning);
  border: 1px solid var(--warning);
}

.error-banner {
  background: rgba(255, 92, 122, 0.12);
  color: var(--negative);
  border: 1px solid var(--negative);
}

.hidden { display: none !important; }
.muted { color: var(--muted); }

@media (max-width: 960px) {
  .main-grid { grid-template-columns: 1fr; }
  .chart-canvas { height: 320px; }
  .stock-header-body { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .app-header { flex-direction: column; align-items: flex-start; }
  .last-price { font-size: 2rem; }
  .stock-header .ohlc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}