:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --border: #30363d;
  --border-subtle: rgba(48, 54, 61, 0.4);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --accent: #58a6ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --orange: #f0883e;
  --green-bg: rgba(63, 185, 80, 0.12);
  --red-bg: rgba(248, 81, 73, 0.12);
  --row-hover: rgba(88, 166, 255, 0.06);
  --row-expanded: rgba(88, 166, 255, 0.10);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Menlo, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ========== Header ========== */
#header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
#header h1 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}

#filter-input {
  flex: 0 1 280px;
  padding: 5px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s;
}
#filter-input:focus { border-color: var(--accent); }
#filter-input::placeholder { color: var(--text-muted); }

#alert-count {
  font-size: 11px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.btn {
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: background 0.1s;
}
.btn-subtle {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}
.btn-subtle:hover { background: var(--border); color: var(--text-primary); }
.odds-select {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
}
.odds-select:hover { color: var(--text-primary); border-color: var(--accent); }
.btn-accent {
  background: rgba(88, 166, 255, 0.15);
  color: var(--accent);
  border-color: rgba(88, 166, 255, 0.3);
}
.btn-accent:hover { background: rgba(88, 166, 255, 0.25); }

.status-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.connected { background: var(--green); }
.dot.disconnected { background: var(--red); }

/* ========== Config Panel ========== */
.config-panel {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px;
  flex-shrink: 0;
}
.config-panel.hidden { display: none; }

.config-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.config-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.config-row .unit {
  font-size: 10px;
  color: var(--text-muted);
}
.config-row input[type="number"] {
  width: 70px;
  padding: 3px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-mono);
  outline: none;
}
.config-row input[type="number"]:focus { border-color: var(--accent); }

/* ========== Table ========== */
#table-container {
  flex: 1;
  overflow: auto;
  position: relative;
}

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

thead {
  position: sticky;
  top: 0;
  z-index: 10;
}
thead th {
  padding: 6px 8px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
thead th:hover { color: var(--text-primary); background: var(--bg-tertiary); }
thead th.sorted-asc::after { content: ' \25B2'; font-size: 9px; }
thead th.sorted-desc::after { content: ' \25BC'; font-size: 9px; }

tbody tr {
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background 0.08s;
}
tbody tr:hover { background: var(--row-hover); }
tbody tr.expanded { background: var(--row-expanded); }

tbody td {
  padding: 5px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
  border-right: 1px solid var(--border-subtle);
}

.col-time   { width: 85px; color: var(--text-muted); font-size: 11px; }
.col-source { width: 55px; }
.col-league { width: 120px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.col-team   { width: 130px; }
.col-market { width: 80px; }
.col-label  { width: 80px; }
.col-desc   { width: 140px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.col-pts    { width: 50px; text-align: right; }
.col-side   { width: 45px; font-weight: 600; }
.col-num    { width: 72px; text-align: right; font-family: var(--font-mono); font-size: 11.5px; }
.col-flag   { width: 55px; text-align: center; }
.col-trade  { width: 60px; text-align: center; }

.badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
}
.badge-green  { background: var(--green-bg); color: var(--green); }
.badge-yellow { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }
.badge-muted  { background: var(--bg-tertiary); color: var(--text-muted); }

.source-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent);
}

.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ========== Detail Panel ========== */
.detail-panel {
  flex-shrink: 0;
  max-height: 45vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.detail-panel.hidden { display: none; }

.detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  z-index: 5;
}
#detail-title {
  font-size: 14px;
  font-weight: 600;
}
#detail-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}
#detail-close { margin-left: auto; }

#main-row {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.odds-panel {
  flex: 0 0 360px;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 8px 12px 8px;
}
.odds-panel-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.odds-panel-header h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.odds-panel-sub {
  font-size: 11px;
  color: var(--text-secondary);
}
.odds-panel-chart {
  flex: 1;
  min-height: 0;
  position: relative;
}
.odds-resize-handle {
  flex: 0 0 5px;
  cursor: col-resize;
  background: transparent;
  transition: background 0.15s;
}
.odds-resize-handle:hover,
.odds-resize-handle:active {
  background: var(--accent);
}
.detail-body {
  display: flex;
  gap: 16px;
  padding: 12px 16px;
}
.detail-chart-wrap,
.detail-meta-wrap {
  flex: 1;
  min-width: 0;
}
.detail-chart-wrap h3,
.detail-meta-wrap h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 8px;
}

/* OB History Slider */
.ob-slider-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  padding: 6px 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
}
.ob-slider {
  flex: 1;
  height: 4px;
  accent-color: var(--accent);
  cursor: pointer;
}
.ob-slider-label {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 120px;
  text-align: right;
}

/* Ladder – side-by-side ask/bid order book */
.ladder-view {
  display: flex;
  gap: 4px;
}
.ladder-side {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.ladder-header {
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  padding: 6px 0 4px;
}
.ladder-col-heads {
  display: flex;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  padding: 2px 0 4px;
  border-bottom: 1px solid var(--border-subtle);
}
.ladder-col-heads span { flex: 1; text-align: right; padding: 0 8px; }
.ladder-col-heads span:nth-child(1) { color: #e06c75; }
.ladder-col-heads span:nth-child(4) { color: #98c379; }
.ladder-col-sep { flex: 0 0 1px !important; background: var(--border-subtle); padding: 0 !important; }
.ladder-rows {
  display: flex;
  flex-direction: column;
}
.ob-row-pair {
  display: flex;
}
.ob-row-pair + .ob-row-pair { border-top: 1px solid var(--bg-tertiary); }
.ob-half {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  overflow: hidden;
}
.ob-half.empty { min-height: 26px; }
.ob-depth {
  position: absolute;
  top: 0;
  bottom: 0;
  opacity: 0.18;
  pointer-events: none;
}
.ob-half.ask-row .ob-depth { background: #e06c75; right: 0; }
.ob-half.bid-row .ob-depth { background: #98c379; right: 0; }
.ob-price {
  position: relative;
  z-index: 1;
  font-weight: 600;
  min-width: 36px;
}
.ob-qty {
  position: relative;
  z-index: 1;
  color: var(--text-secondary);
  margin-left: auto;
  text-align: right;
}
.ask-row .ob-price { color: #e06c75; }
.bid-row .ob-price { color: #98c379; }
.ladder-empty {
  color: var(--text-muted);
  font-size: 12px;
  padding: 16px 0;
  text-align: center;
}

/* Meta */
.meta-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 12px;
  font-size: 12px;
}
.meta-grid dt {
  color: var(--text-muted);
  font-weight: 500;
  text-align: right;
}
.meta-grid dd {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* ========== Footer ========== */
#footer {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--border); }