:root {
  --bg: #0b0e14;
  --panel: #151a24;
  --panel-border: #262e3d;
  --text: #e6e9ef;
  --text-dim: #8a93a6;
  --accent: #4f8cff;
  --accent-2: #8b5cf6;
  --up: #1fb578;
  --down: #f0495a;
  --up-bg: rgba(31, 181, 120, 0.25);
  --down-bg: rgba(240, 73, 90, 0.25);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: radial-gradient(circle at 15% 0%, #141a28 0%, var(--bg) 55%);
  color: var(--text);
  font-family: var(--font);
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

* {
  scrollbar-width: thin;
  scrollbar-color: #2a3142 transparent;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  flex-wrap: wrap;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-name {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-tagline {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.chart-count-selector {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chart-count-selector .label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.count-buttons {
  display: flex;
  gap: 6px;
}

.count-buttons button {
  background: #1d2330;
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
}

.count-buttons button:hover {
  background: #262e3d;
}

.count-buttons button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

.chart-grid {
  flex: 1;
  display: grid;
  gap: 6px;
  padding: 6px;
  min-height: 0;
  overflow: hidden;
}

.pane {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  overflow: hidden;
  min-height: 0;
  min-width: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.pane-controls {
  display: flex;
  gap: 6px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--panel-border);
  flex-wrap: wrap;
}

.pane-controls select,
.pane-controls input {
  background: #1d2330;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 5px;
  padding: 4px 6px;
  font-size: 12px;
  min-width: 0;
}

.pane-controls .symbol-input {
  flex: 1;
  min-width: 70px;
  text-transform: uppercase;
}

.indicator-menu {
  position: relative;
}

.indicator-menu summary {
  background: #1d2330;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 5px;
  padding: 4px 6px;
  font-size: 12px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.indicator-menu summary::-webkit-details-marker {
  display: none;
}

.indicator-menu[open] summary {
  background: #262e3d;
}

.indicator-panel {
  position: fixed;
  z-index: 100;
  background: #1d2330;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 8px;
  display: flex;
  gap: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
}

.indicator-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.indicator-group-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 2px;
}

.indicator-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  cursor: pointer;
}

.indicator-group input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
}

.range-bar {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 4px 6px;
  border-top: 1px solid var(--panel-border);
  background: #11151d;
  flex-wrap: wrap;
}

.range-bar button {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.range-bar button:hover {
  background: #1d2330;
  color: var(--text);
}

.range-bar button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

.ticker-bar {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 10px;
  font-variant-numeric: tabular-nums;
  background: #11151d;
  border-bottom: 1px solid var(--panel-border);
  transition: background-color 0.4s ease;
}

.ticker-bar.flash-up { background-color: var(--up-bg); }
.ticker-bar.flash-down { background-color: var(--down-bg); }

.ticker-symbol {
  font-weight: 700;
  font-size: 13px;
}

.ticker-price {
  font-size: 15px;
  font-weight: 600;
}

.ticker-price.up { color: var(--up); }
.ticker-price.down { color: var(--down); }

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

.ticker-change.up { color: var(--up); }
.ticker-change.down { color: var(--down); }

.chart-container {
  flex: 1;
  min-height: 0;
  position: relative;
}

.app-footer {
  flex-shrink: 0;
  padding: 6px 18px;
  background: var(--panel);
  border-top: 1px solid var(--panel-border);
  text-align: center;
}

.app-footer .disclaimer {
  margin: 0 auto 2px;
  max-width: 1100px;
  font-size: 10px;
  line-height: 1.4;
  color: var(--text-dim);
  opacity: 0.85;
}

.app-footer .copyright {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
}

@media (max-width: 640px) {
  .toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .app-footer .disclaimer {
    font-size: 9.5px;
  }
}