:root {
  --bg: #0e1116;
  --panel: #141922;
  --grid: #202736;
  --text: #d5e0ff;
  --muted: #9aa7cc;
  --accent-green: #26ff8a;
  --accent-red: #ff4d6d;
  --accent-cyan: #1ec8ff;
  --accent-amber: #ffd166;
  --accent-magenta: #ff70e0;
  --border: #2a344a;
  --input-bg: #0c0f15;
  --canvas-bg: #101521;
}

:root[data-theme="light"] {
  --bg: #f7fafc;
  --panel: #ffffff;
  --grid: #e5e7eb;
  --text: #111827;
  --muted: #4b5563;
  --accent-green: #16a34a;
  --accent-red: #dc2626;
  --accent-cyan: #0891b2;
  --accent-amber: #f59e0b;
  --accent-magenta: #7c3aed;
  --border: #e5e7eb;
  --input-bg: #ffffff;
  --canvas-bg: #ffffff;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; letter-spacing: 0.5px; }
.controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; row-gap: 6px; }
.ctl { display: grid; gap: 4px; }
.ctl span { font-size: 12px; color: var(--muted); }
input[type="text"], input[type="number"], input[type="date"], input[type="range"] {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 8px;
  border-radius: 4px;
  min-width: 100px;
}
input[type="range"] { padding: 0; min-width: 120px; }
.btn {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent-cyan); }
.btn.btn-sm { padding: 4px 8px; font-size: 12px; }
.btn.btn-danger { border-color: var(--accent-red); }
.chip {
  background: var(--input-bg);
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  height: calc(100vh - 48px);
}

.left-col {
  border-right: 1px solid var(--border);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 8px;
}

.left-col .panel { min-height: 0; }
.right-col { overflow: auto; }

.panel { padding: 12px; border-bottom: 1px solid var(--border); }
.panel-title { font-weight: 600; margin-bottom: 10px; display: flex; align-items: center; justify-content: space-between; }
.with-tabs .tabs.small button { padding: 4px 8px; font-size: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
/* Market Inputs alignment */
.panel .grid2 label { display: grid; gap: 4px; align-items: start; }
.panel .grid2 label span { font-size: 12px; color: var(--muted); }
.panel .grid2 input { width: 100%; height: 30px; background: var(--input-bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 4px 8px; }
.panel .grid2 input[type="number"] { text-align: right; }

.tabs { display: inline-flex; gap: 6px; }
.tabs button { background: var(--input-bg); border: 1px solid var(--border); color: var(--text); padding: 6px 10px; border-radius: 4px; cursor: pointer; }
.tabs button.active { border-color: var(--accent-magenta); color: var(--accent-magenta); }

/* Keep panel titles visible while scrolling inside */
.panel-title { position: sticky; top: 0; background: var(--panel); z-index: 1; padding-top: 4px; }

.preset-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; align-items: stretch; max-height: min(280px, 32vh); overflow: auto; padding-right: 2px; }
.preset-card { background: var(--input-bg); border: 1px solid var(--grid); padding: 8px; border-radius: 10px; cursor: pointer; display: grid; grid-template-rows: auto 1fr auto; gap: 6px; justify-items: center; align-items: center; height: 150px; transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease; }
.preset-card:hover { border-color: var(--accent-cyan); box-shadow: 0 0 0 1px var(--accent-cyan) inset; transform: translateY(-1px); }
.preset-card.selected { border-color: var(--accent-magenta); box-shadow: 0 0 0 1px var(--accent-magenta) inset; }
.preset-card:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--accent-cyan) inset; }
.preset-canvas { width: 100px; height: 72px; background: var(--canvas-bg); border-radius: 8px; border: 1px solid var(--grid); }
.preset-title { font-weight: 600; font-size: 12px; text-align: center; line-height: 1.2; }
.preset-sub { color: var(--muted); font-size: 11px; text-align: center; }

.table-wrap { border: 1px solid var(--grid); border-radius: 6px; overflow: auto; background: var(--input-bg); }
.panel .table-wrap { max-height: 200px; }
table { width: 100%; border-collapse: collapse; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 12px; }
th, td { padding: 8px; border-bottom: 1px solid var(--grid); }
th { text-align: left; color: var(--muted); font-weight: 600; }
tbody tr:hover { background: #0f131b; }

/* P&L table styling */
table.pnl td.pnl-pos { color: var(--accent-green); }
table.pnl td.pnl-neg { color: var(--accent-red); text-decoration: line-through; text-decoration-thickness: 1px; text-decoration-color: rgba(255,255,255,0.25); }
table.pnl tbody tr:nth-child(odd) { background: rgba(255,255,255,0.02); }

/* Legs table column sizing/alignment */
.legs th, .legs td {
  padding: 10px; /* Increase padding for better spacing */
}
.legs tbody tr {
  margin-bottom: 6px; /* Add spacing between rows */
}
.legs th:nth-child(1), .legs td:nth-child(1) {
  width: 80px; /* Adjust column widths */
}
.legs th:nth-child(2), .legs td:nth-child(2) {
  width: 80px;
}
.legs th:nth-child(3), .legs td:nth-child(3) {
  width: 150px;
}
.legs th:nth-child(4), .legs td:nth-child(4) {
  width: 120px;
}
.legs th:nth-child(5), .legs td:nth-child(5) {
  width: 110px;
}
.legs th:nth-child(6), .legs td:nth-child(6) {
  width: 100px;
}
.legs th:nth-child(7), .legs td:nth-child(7) {
  width: 120px;
}
.legs th:nth-child(8), .legs td:nth-child(8) {
  width: 100px;
}

.row-actions { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.spacer { flex: 1; }

.summary { display: flex; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border); background: var(--panel); position: sticky; top: 0; z-index: 1; }

.tab-body { padding: 12px; min-height: 0; }
.hidden { display: none; }

.chart-wrap { background: var(--input-bg); border: 1px solid var(--grid); border-radius: 6px; overflow: hidden; }
canvas { display: block; width: 100%; height: clamp(320px, calc(100vh - 320px), 520px); }
.toggles { display: flex; gap: 12px; margin-top: 8px; color: var(--muted); }

.footer { padding: 10px 12px; border-top: 1px solid var(--border); color: var(--muted); }

.oi-inputs { display: flex; gap: 8px; margin-bottom: 8px; }

/* Responsive */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .left-col { border-right: none; }
  .preset-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* Chart overlays for white payoff theme */
.chart-wrap { position: relative; }
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.1);
  z-index: 5;
}
.chart-zoom {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  z-index: 4;
}
.projected-pill {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--input-bg);
  color: var(--accent-green);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 12px;
  z-index: 4;
}