/* OptionGap — Options tab styles */

.opt-root {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Header strip ──────────────────────────────────────────────────── */

.opt-hdrow {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 16px;
  align-items: stretch;
}

.opt-instr {
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.opt-instr::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(120px 80px at 90% 0%, var(--accent-soft), transparent 70%);
  pointer-events: none;
}
.opt-instr-sym { display: flex; gap: 8px; }
.opt-instr-sel { font-weight: 600; min-width: 0; flex: 1; }
.opt-spot {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.opt-spot-px {
  font-size: 28px; font-weight: 600; letter-spacing: -0.02em;
  color: var(--fg-0);
}
.opt-spot-chg { font-size: 13px; font-weight: 500; }

.opt-stats {
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: repeat(6, 1fr) auto;
  gap: 12px;
  align-items: center;
}
.opt-stat {
  display: flex; flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--bd-1);
  padding-left: 12px;
}
.opt-stat:first-child { border-left: 0; padding-left: 0; }
.opt-stat-k { font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; }
.opt-stat-v { font-size: 18px; color: var(--fg-0); font-weight: 600; letter-spacing: -0.01em; }
.opt-stat-s { font-size: 11px; color: var(--fg-2); }
.opt-stat-s.up { color: var(--pos); }
.opt-stat-s.dn { color: var(--neg); }
.opt-stats-actions { display: flex; gap: 8px; padding-left: 12px; border-left: 1px solid var(--bd-1); }

/* ── Option chain ──────────────────────────────────────────────────── */

:root { --row-h: 38px; }

.opt-range-grp { display: inline-flex; align-items: center; gap: 8px; margin-right: 16px; }
.opt-range-l { font-size: 11px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; }

.opt-chain-card { overflow: hidden; }
.opt-chain-scroll {
  max-height: 640px;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--bd-3) transparent;
}
.opt-chain-scroll::-webkit-scrollbar { width: 10px; height: 10px; }
.opt-chain-scroll::-webkit-scrollbar-thumb { background: var(--bd-2); border-radius: 4px; border: 2px solid transparent; background-clip: content-box; }

.opt-chain {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.opt-chain th, .opt-chain td {
  padding: 0 12px;
  text-align: right;
  white-space: nowrap;
  height: var(--row-h);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.opt-chain thead tr { background: var(--bg-1); }
.opt-chain thead th {
  position: sticky; top: 0; z-index: 2;
  background: var(--bg-1);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-2);
  border-bottom: 1px solid var(--bd-1);
  padding: 8px;
  height: auto;
}
.opt-chain-grouphd th {
  top: 0;
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 6px 8px;
  border-bottom: 0;
  color: var(--fg-2);
}
.opt-chain-grouphd .opt-side--ce { text-align: left; color: hsl(var(--accent-h) 70% 75%); }
.opt-chain-grouphd .opt-side--pe { text-align: right; color: hsl(calc(var(--accent-h) + 100) 70% 75%); }
.opt-chain-grouphd .opt-strikehd { background: var(--bg-2); border-radius: 0; text-align: center; }

.opt-chain-colhd { z-index: 3 !important; }
.opt-chain-colhd th { top: 28px; box-shadow: inset 0 -1px 0 var(--bd-1); }
.opt-chain-colhd .opt-strikehd { background: var(--bg-2); text-align: center; }
.opt-th-num, .opt-th-gap { color: var(--fg-1); }
.opt-th-gap { color: var(--fg-1); }

.opt-row td.muted { color: var(--fg-2); }
.opt-row td.theo { color: var(--fg-1); font-style: normal; }
.opt-row td.itm  { background: rgba(255,255,255,0.025); }
.opt-row:hover td:not(.opt-strike) { background: rgba(255,255,255,0.03); }
.opt-row.atm td { border-top: 1px solid var(--accent-bd); border-bottom: 1px solid var(--accent-bd); }
.opt-row.atm td.itm { background: var(--accent-soft); }
.opt-row.focused td:not(.opt-strike) { background: rgba(255,255,255,0.05); }

/* Strike center column */
.opt-strike {
  text-align: center !important;
  background: var(--bg-2);
  font-weight: 600;
  color: var(--fg-0);
  position: relative;
  border-left: 1px solid var(--bd-1);
  border-right: 1px solid var(--bd-1);
  padding: 0 12px !important;
  min-width: 92px;
}
.opt-strike.atm {
  background: var(--accent-soft);
  color: var(--accent);
}
.opt-strike-tag {
  display: inline-block;
  margin-left: 6px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--accent);
  color: #0a0b0f;
  vertical-align: middle;
}

/* OI cell */
.opt-oi { display: flex; flex-direction: column; align-items: stretch; gap: 2px; min-width: 80px; }
.opt-oi-bar { height: 3px; background: rgba(255,255,255,0.05); border-radius: 2px; overflow: hidden; }
.opt-oi-fill {
  height: 100%;
  background: linear-gradient(90deg, hsl(var(--accent-h) 60% 55% / 0.5), hsl(var(--accent-h) 80% 65%));
  border-radius: 2px;
}
.opt-oi.pe .opt-oi-fill { background: linear-gradient(90deg, hsl(calc(var(--accent-h) + 100) 60% 55% / 0.5), hsl(calc(var(--accent-h) + 100) 80% 65%)); }
.opt-oi-row { display: flex; justify-content: space-between; align-items: baseline; gap: 6px; }
.opt-oi-num { color: var(--fg-1); font-size: 11.5px; }
.opt-oi-chg { font-size: 10.5px; }

/* GAP cell — color-coded heatmap (text & background use same color)
   cheap = market < theo (underpriced)  → GREEN for CE, RED for PE
   rich  = market > theo (overpriced)   → RED for CE, GREEN for PE         */
.opt-gap { padding: 0 !important; }
.opt-gap-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  padding: 4px 8px;
  position: relative;
  isolation: isolate;
}

.opt-gap-inner::before {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  opacity: var(--sat, 0);
  border-radius: 3px;
  margin: 1px;
}

/* GREEN tone (cheap) — unified color for text + background */
.opt-gap-inner.opt-gap-cheap {
  color: hsl(140 75% 65%);
}
.opt-gap-inner.opt-gap-cheap::before {
  background: linear-gradient(90deg, transparent, hsl(140 70% 48% / 0.65) 90%);
}
.opt-gap.pe .opt-gap-inner.opt-gap-cheap::before {
  background: linear-gradient(-90deg, transparent, hsl(140 70% 48% / 0.65) 90%);
}

/* RED tone (rich) — unified color for text + background */
.opt-gap-inner.opt-gap-rich {
  color: hsl(0 80% 68%);
}
.opt-gap-inner.opt-gap-rich::before {
  background: linear-gradient(90deg, transparent, hsl(0 75% 48% / 0.65) 90%);
}
.opt-gap.pe .opt-gap-inner.opt-gap-rich::before {
  background: linear-gradient(-90deg, transparent, hsl(0 75% 48% / 0.65) 90%);
}

/* PE side — right-align and flip gradient direction (handled above) */
.opt-gap.pe .opt-gap-inner {
  align-items: flex-start;
}

/* Text styling */
.opt-gap-abs { font-size: 12px; font-weight: 600; line-height: 1.15; }
.opt-gap-pct { font-size: 10.5px; line-height: 1.1; font-weight: 500; }
.opt-row td.ltp { color: var(--fg-0); font-weight: 500; }

/* Legend */
.opt-legend { display: flex; gap: 14px; font-size: 11px; color: var(--fg-2); }
.opt-legend-item { display: inline-flex; align-items: center; gap: 6px; }
.opt-legend-sw {
  width: 10px; height: 10px; border-radius: 2px;
  display: inline-block;
}
.opt-legend-sw.cheap-ce { background: hsl(140 70% 50%); border: 1px solid hsl(140 75% 60%); }
.opt-legend-sw.rich-ce  { background: hsl(0 75% 50%);   border: 1px solid hsl(0 80% 65%);   }
.opt-legend-sw.itm { background: rgba(255,255,255,0.06); border: 1px solid var(--bd-2); }

/* Error banner */
.opt-error-banner {
  display: flex; align-items: center; gap: 10px;
  background: hsl(0 60% 20% / 0.5);
  border: 1px solid hsl(0 60% 45% / 0.4);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  font-size: 13px; color: hsl(0 75% 75%);
}
.opt-error-icon { font-size: 15px; flex-shrink: 0; }
.opt-error-link {
  margin-left: auto; flex-shrink: 0;
  color: hsl(0 80% 75%); text-decoration: underline;
  font-weight: 600;
}

/* Empty state */
.opt-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--fg-2);
  font-size: 13px;
}

/* ── Gamma Exposure chart ─────────────────────────────────────────── */

.opt-gex-bd { padding: 10px 18px 18px; }
.opt-gex-svg { width: 100%; height: auto; display: block; }
.opt-gex-axis { fill: var(--fg-2); font-size: 10px; font-variant-numeric: tabular-nums; }
.opt-gex-spot {
  fill: hsl(var(--accent-h) 90% 80%);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.opt-gex-flip-l {
  fill: #fbbf24; font-size: 10px; font-weight: 600;
  letter-spacing: 0.04em;
}

.opt-gex-foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 8px;
  font-size: 11px;
  flex-wrap: wrap; gap: 12px;
}
.opt-gex-legend { display: flex; gap: 16px; color: var(--fg-2); flex-wrap: wrap; }
.opt-gex-legend .sw {
  width: 12px; height: 8px; border-radius: 2px; display: inline-block; vertical-align: middle; margin-right: 5px;
}
.opt-gex-legend .sw.line { height: 2px; border-radius: 1px; }
.opt-gex-legend .sw.line.accent { background: hsl(var(--accent-h) 90% 70%); }
.opt-gex-legend .sw.line.dashed { background: repeating-linear-gradient(90deg, #fbbf24 0 4px, transparent 4px 8px); }

.opt-gex-tip {
  display: inline-flex; gap: 16px;
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 11.5px;
  color: var(--fg-1);
}
.opt-gex-tip b { color: var(--fg-0); font-weight: 600; }

@media (max-width: 1100px) {
  .opt-hdrow { grid-template-columns: 1fr; }
  .opt-stats { grid-template-columns: repeat(3, 1fr); }
  .opt-stats-actions { grid-column: 1 / -1; padding-left: 0; border-left: 0; padding-top: 12px; border-top: 1px solid var(--bd-1); }
}

/* ── Sub-tab nav inside Options ────────────────────────────────────── */

.opt-subnav {
  align-self: flex-start;
}
.opt-subnav button {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
}

/* ── Dealer Greeks panel ───────────────────────────────────────────── */

.dg-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.dg-switch { align-self: flex-start; }
.dg-switch button { padding: 7px 18px; font-size: 12.5px; font-weight: 600; }

.dg-summary {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  position: relative;
}
.dg-sum-cell {
  display: flex; flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--bd-1);
  padding-left: 12px;
}
.dg-sum-cell:first-child { border-left: 0; padding-left: 0; }
.dg-sum-k { font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; }
.dg-sum-v { font-size: 18px; color: var(--fg-0); font-weight: 600; letter-spacing: -0.01em; }
.dg-sum-v.up { color: var(--pos); }
.dg-sum-v.dn { color: var(--neg); }
.dg-sum-s { font-size: 11px; color: var(--fg-2); }
.dg-sum-note {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--fg-1);
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 6px;
  padding: 8px 12px;
  margin-top: 4px;
}

/* ── Interpretation card (dynamic reading) ────────────────────────── */

.dg-interp {
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-left-width: 3px;
}
.dg-interp-up { border-left-color: var(--pos); }
.dg-interp-dn { border-left-color: var(--neg); }

.dg-interp-hd { display: flex; align-items: center; gap: 10px; }
.dg-interp-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
}
.dg-interp-pill.up { color: var(--pos); border-color: rgba(34,197,94,0.35); background: rgba(34,197,94,0.08); }
.dg-interp-pill.dn { color: var(--neg); border-color: rgba(239,68,68,0.35); background: rgba(239,68,68,0.08); }

.dg-interp-headline {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--fg-0);
  font-weight: 500;
}

.dg-interp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.dg-interp-reading {
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.dg-interp-rk { font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; }
.dg-interp-rv { font-size: 14px; color: var(--fg-0); font-weight: 600; }
.dg-interp-rn { font-size: 11.5px; color: var(--fg-1); line-height: 1.5; }

.dg-interp-pb {
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 8px;
  padding: 10px 14px;
}
.dg-interp-pb-k {
  font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500;
  margin-bottom: 6px;
}
.dg-interp-pb ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.dg-interp-pb li {
  font-size: 12.5px;
  color: var(--fg-1);
  line-height: 1.5;
}

/* ── Educational explainer ─────────────────────────────────────────── */

.dg-explainer {
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.dg-explainer-tog {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--fg-0);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dg-explainer-tog:hover { background: var(--bg-2); }
.dg-explainer-tog span { color: var(--fg-2); font-weight: 400; }

.dg-explainer-body {
  padding: 4px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--bd-1);
}
.dg-explainer-block { display: flex; flex-direction: column; gap: 4px; }
.dg-explainer-h {
  font-size: 11.5px;
  color: var(--fg-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-top: 8px;
}
.dg-explainer-p {
  font-size: 12.5px;
  color: var(--fg-1);
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .dg-summary { grid-template-columns: repeat(2, 1fr); }
  .dg-sum-cell:nth-child(odd) { border-left: 0; padding-left: 0; }
  .dg-interp-grid { grid-template-columns: 1fr; }
}

/* ── Participants panel ────────────────────────────────────────────── */

.part-panel { display: flex; flex-direction: column; gap: 14px; }
.part-empty { font-size: 13px; color: var(--fg-2); padding: 24px 16px; text-align: center;
              background: var(--bg-1); border: 1px dashed var(--bd-1); border-radius: var(--radius-lg); }

.part-header {
  display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center;
  background: var(--bg-1); border: 1px solid var(--bd-1); border-radius: var(--radius-lg);
  padding: 12px 16px;
}
.part-header-l { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.part-header-r { display: flex; gap: 12px; align-items: center; }
.part-header-stat { display: flex; flex-direction: column; gap: 2px; }
.part-header-k { font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; }
.part-header-v { font-size: 14px; color: var(--fg-0); font-weight: 600; font-variant-numeric: tabular-nums; }
.part-header-s { font-size: 11px; color: var(--fg-2); }
.part-header-days button { padding: 5px 11px; font-size: 11.5px; font-weight: 600; }

.part-status {
  display: flex; flex-direction: column; align-items: flex-end; gap: 4px;
  max-width: 320px;
}
.part-status-pill {
  font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  background: rgba(245,158,11,0.14); color: #f59e0b; border: 1px solid rgba(245,158,11,0.35);
}
.part-status-msg { font-size: 11px; color: var(--fg-2); text-align: right; line-height: 1.4; }
.part-actions { display: flex; gap: 8px; }

/* ── Snapshot grid ─────────────────────────────────────────────────── */

.part-grid-bd { padding: 10px 16px 16px; overflow-x: auto; }
.part-grid {
  display: grid;
  gap: 1px;
  background: var(--bd-1);
  border: 1px solid var(--bd-1);
  border-radius: 6px;
  overflow: hidden;
  min-width: 720px;
}
.part-grid-h, .part-grid-cl, .part-cell {
  background: var(--bg-1);
  padding: 9px 12px;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.part-grid-h {
  background: var(--bg-2);
  font-size: 10.5px;
  color: var(--fg-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  text-align: right;
}
.part-grid-h-l { text-align: left; }
.part-grid-cl {
  background: var(--bg-2);
  color: var(--fg-0);
  font-weight: 600;
  font-size: 13px;
  display: flex; align-items: center; gap: 8px;
}
.part-dot { display: inline-block; width: 8px; height: 8px; border-radius: 999px; }

.part-cell { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.part-cell.pos { background: rgba(34,197,94,0.08); }
.part-cell.neg { background: rgba(239,68,68,0.08); }
.part-cell-v { font-size: 13.5px; font-weight: 600; color: var(--fg-0); }
.part-cell.pos .part-cell-v { color: var(--pos); }
.part-cell.neg .part-cell-v { color: var(--neg); }
.part-cell-d { font-size: 11px; color: var(--fg-2); }
.part-cell-d.up { color: var(--pos); }
.part-cell-d.dn { color: var(--neg); }

/* ── Instrument selector + time chart ──────────────────────────────── */

.part-inst-switch { align-self: flex-start; flex-wrap: wrap; }
.part-inst-switch button { padding: 7px 14px; font-size: 12px; font-weight: 600; }

.part-chart-bd { padding: 10px 16px 14px; }
.part-chart-svg { width: 100%; height: auto; display: block; }
.part-chart-foot {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-top: 8px; flex-wrap: wrap; gap: 12px;
}
.part-chart-legend { display: flex; gap: 14px; font-size: 11.5px; color: var(--fg-2); flex-wrap: wrap; }
.part-chart-legend .sw {
  width: 12px; height: 8px; border-radius: 2px; display: inline-block; vertical-align: middle; margin-right: 5px;
}
.part-chart-tip {
  display: inline-flex; gap: 14px; flex-wrap: wrap;
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 11.5px;
  color: var(--fg-1);
}
.part-chart-tip b { color: var(--fg-0); font-weight: 600; }
.part-chart-tip .sw {
  width: 10px; height: 6px; border-radius: 2px; display: inline-block; vertical-align: middle; margin-right: 4px;
}

/* ── DoD table ─────────────────────────────────────────────────────── */

.part-dod-bd { padding: 6px 0 12px; overflow-x: auto; }
.part-dod-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
.part-dod-tbl th, .part-dod-tbl td {
  padding: 9px 16px;
  text-align: left;
  border-bottom: 1px solid var(--bd-1);
}
.part-dod-tbl th {
  font-size: 10.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em;
  font-weight: 600;
  background: var(--bg-2);
}
.part-dod-tbl td.num, .part-dod-tbl th.num { text-align: right; }
.part-dod-tbl td.up { color: var(--pos); }
.part-dod-tbl td.dn { color: var(--neg); }
.part-dod-tbl tbody tr:hover { background: var(--bg-2); }

/* ── Window-wide analytics: highlight tiles + stats table ─────────────── */

.part-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--bd-1);
}
.part-stat-tile {
  background: var(--bg-2);
  border: 1px solid var(--bd-1);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 70px;
}
.part-stat-k {
  font-size: 10.5px;
  color: var(--fg-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}
.part-stat-v {
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.part-stat-v.up { color: var(--pos); }
.part-stat-v.dn { color: var(--neg); }
.part-stat-s {
  font-size: 11px;
  color: var(--fg-2);
  line-height: 1.35;
}
.part-stats-tbl th, .part-stats-tbl td { padding: 7px 12px; font-size: 12px; }

/* ── Explainer (read-only educational footer) ──────────────────────── */

.part-explainer {
  background: var(--bg-1);
  border: 1px solid var(--bd-1);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex; flex-direction: column; gap: 10px;
}
.part-explainer-h {
  font-size: 11.5px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600;
}
.part-explainer-p {
  font-size: 12.5px;
  color: var(--fg-1);
  line-height: 1.6;
}
.part-explainer-p code {
  font-size: 11.5px;
  background: var(--bg-2);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--bd-1);
}

@media (max-width: 1100px) {
  .part-header { grid-template-columns: 1fr; }
  .part-header-r { justify-content: flex-start; }
}