:root {
  --bg: #0b0e14;
  --bg-panel: #11151d;
  --bg-card: #161b26;
  --border: #232a38;
  --text: #e6e9ef;
  --text-dim: #8993a4;
  --green: #2e7d32;
  --green-bright: #4caf50;
  --red: #c0392b;
  --red-bright: #e74c3c;
  --accent: #2e75b6;
  --accent-bright: #5b9bd5;
  --amber: #d4a017;
  --mono: "SF Mono", "Roboto Mono", "Consolas", monospace;
  --sans: "Inter", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
}

/* ---------- topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-left {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.logo-mark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.08em;
  color: var(--accent-bright);
}

.logo-sub {
  font-size: 12px;
  color: var(--text-dim);
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.sidebar-select {
  display: flex;
  flex-direction: column;
  font-size: 11px;
  color: var(--text-dim);
  gap: 4px;
}
.sidebar-select + .sidebar-select {
  margin-top: 10px;
}

.sidebar-select select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 8px;
  font-family: var(--mono);
  font-size: 12px;
  width: 100%;
}

.sidebar-select-row {
  display: flex;
  gap: 6px;
}
.sidebar-select-row select {
  flex: 1 1 auto;
  min-width: 0;
}
.sidebar-select-row .reload-btn {
  flex: 0 0 auto;
  padding: 6px 10px;
}

.reload-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  align-self: flex-end;
  transition: border-color 0.15s, color 0.15s;
}
.reload-btn:hover {
  border-color: var(--accent-bright);
  color: var(--accent-bright);
}
.reload-btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.dot-off { background: var(--red-bright); box-shadow: 0 0 6px var(--red-bright); }
.dot-on { background: var(--green-bright); box-shadow: 0 0 6px var(--green-bright); }

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 20px 24px 40px;
  max-width: none;
  margin: 0;
}

/* fila principal: gráfico (ancho) + métricas (sidebar angosto a la derecha) */
.dashboard-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 16px;
  align-items: start;
}

.metrics-sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: sticky;
  top: 16px;
}

.level-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 3px solid var(--border);
}

.level-spot { border-top-color: var(--accent-bright); }

.level-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.level-value {
  font-family: var(--mono);
  font-size: 21px;
  font-weight: 600;
}

.level-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}

/* ---------- metrics groups: Volume + Open Interest, como en gexbot.com ---------- */
.metrics-group {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}

.metrics-group-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin: 0 0 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.metric-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 4px 0;
  gap: 8px;
  flex-wrap: wrap;
}
.metric-row + .metric-row {
  border-top: 1px solid #1a2030;
}

.metric-label {
  font-size: 11px;
  color: var(--text-dim);
  flex: 1 1 auto;
  min-width: 90px;
}

.metric-value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
}

.metric-sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  width: 100%;
  text-align: right;
}

.metric-call .metric-value { color: var(--green-bright); }
.metric-put .metric-value { color: var(--red-bright); }
.metric-flip .metric-value { color: #e8c54a; }
.metric-net .metric-label { font-weight: 600; }

/* ---------- niveles manuales de soporte/resistencia ---------- */
.levels-group .metrics-group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.save-levels-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 5px;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  transition: border-color 0.15s, color 0.15s;
}
.save-levels-btn:hover { border-color: var(--accent-bright); color: var(--accent-bright); }
.save-levels-btn.is-saved { border-color: var(--green-bright); color: var(--green-bright); }

.levels-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.level-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
}
.level-row + .level-row {
  border-top: 1px solid #1a2030;
  padding-top: 8px;
}

.level-row-toggle {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  cursor: pointer;
  accent-color: var(--accent-bright);
}

.level-row-price {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  padding: 4px 6px;
  font-family: var(--mono);
  font-size: 11px;
}
.level-row-price::placeholder { color: #4a5266; }
.level-row-price:disabled { opacity: 0.4; }

.level-row-color {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: none;
  padding: 0;
  cursor: pointer;
}
.level-row-color:disabled { opacity: 0.4; cursor: default; }

.level-row-style {
  flex: 0 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 5px;
  padding: 4px 4px;
  font-family: var(--mono);
  font-size: 10px;
}
.level-row-style:disabled { opacity: 0.4; }


/* ---------- chart panel ---------- */
.chart-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.chart-header h1 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.chart-timestamp {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}

.chart-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.align-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.align-btn {
  background: var(--bg-card);
  border: none;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  padding: 6px 10px;
  cursor: pointer;
  border-right: 1px solid var(--border);
  transition: background 0.15s, color 0.15s;
}
.align-btn:last-child { border-right: none; }
.align-btn:hover { color: var(--text); }
.align-btn.is-active {
  background: var(--accent);
  color: #fff;
}

.align-toggle-full {
  width: 100%;
}
.align-toggle-full .align-btn {
  flex: 1 1 0;
  text-align: center;
}

.chart-legend {
  display: flex;
  gap: 18px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.legend-hint {
  margin-left: auto;
  font-style: italic;
  opacity: 0.8;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
}

.legend-swatch {
  width: 18px;
  height: 0;
  border-top: 2px dashed;
  display: inline-block;
}

.swatch-call { border-color: var(--green-bright); }
.swatch-put { border-color: var(--red-bright); }
.swatch-flip { border-color: #e8c54a; }
.swatch-spot { border-color: var(--accent-bright); border-top-style: solid; }
.swatch-gauss { border-color: #e8a33d; border-top-style: solid; }

.chart-wrap {
  position: relative;
  height: 760px;
  cursor: grab;
}
.chart-wrap:active {
  cursor: grabbing;
}

.chart-panel.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  border-radius: 0;
  margin: 0;
  max-width: none;
  overflow-y: auto;
}
.chart-panel.is-fullscreen .chart-wrap {
  height: calc(100vh - 140px);
}

/* ---------- log panel ---------- */
.log-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
}

.log-panel h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 8px;
}

.log-box {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  max-height: 140px;
  overflow-y: auto;
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
}

.log-box .log-line.error { color: var(--red-bright); }
.log-box .log-line.ok { color: var(--green-bright); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .dashboard-row { grid-template-columns: 1fr; }
  .metrics-sidebar { position: static; }
}

@media (max-width: 860px) {
  .chart-wrap { height: 480px; }
}

.load-error-banner {
  margin: 12px 24px 0;
  padding: 12px 16px;
  background: #2a1414;
  border: 1px solid var(--red-bright);
  border-radius: 8px;
  color: #f5b7b1;
  font-size: 13px;
  max-width: 1200px;
  margin-inline: auto;
}