/* risk-reversal.css — Risk Reversal page
 *
 * Session directional flow (cumulative call − put net notional) charted against the prior session
 * close of the underlying. Palette/typography match session-flow.css so the two pages read as one
 * family. REST-driven, no websocket.
 */

:root {
  --bg: #0d1117;
  --panel: #151b23;
  --grid: #1f2730;
  --grid-soft: #1a2129;
  --text: #d7e2ef;
  --muted: #6e7d92;
  --muted-strong: #91a7bd;
  --bull: #2ecc71;
  --bear: #ff5d5d;
  --accent: #1f6feb;
  --spot: #79b8ff;
  --rr: #38bdf8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  font-size: 13px;
}

.rr-wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 20px 32px;
}

/* ---------- header ---------- */
.rr-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 6px 2px 14px;
  border-bottom: 1px solid var(--grid);
}
.rr-title { display: flex; align-items: baseline; gap: 12px; }
.rr-kick {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}
.rr-title h1 { font-size: 16px; font-weight: 650; margin: 0; }
.rr-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--muted-strong);
}
.rr-meta b { color: var(--text); font-weight: 600; }
.rr-status {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--grid);
  color: var(--muted);
}
.rr-status.ok { color: var(--bull); border-color: rgba(46, 204, 113, 0.4); }
.rr-status.error { color: var(--bear); border-color: rgba(255, 93, 93, 0.4); }

.pos { color: var(--bull); }
.neg { color: var(--bear); }

/* ---------- stat tiles ---------- */
.rr-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  padding: 14px 0;
}
.rr-stats .stat {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 12px 16px;
}
.rr-stats .lab {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.rr-stats .val {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 600;
  margin-top: 5px;
  letter-spacing: -0.5px;
}
.rr-stats .sub {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--muted-strong);
  margin-top: 5px;
}

/* ---------- chart ---------- */
.rr-chart {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 12px 10px 6px;
  overflow-x: auto;
}
.rr-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.rr-empty {
  padding: 48px 0;
  text-align: center;
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

.gl { stroke: var(--grid-soft); stroke-width: 1; }
.closeline { stroke: var(--muted); stroke-width: 1.3; stroke-dasharray: 5 4; }
.axlab {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 10px;
  fill: var(--muted);
}
.axlab.rr { fill: var(--rr); }
.axlab.strong { font-weight: 600; }
.priceline {
  fill: none;
  stroke: var(--spot);
  stroke-width: 2.2;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.rrline { fill: none; stroke: var(--rr); stroke-width: 2; stroke-linejoin: round; }
.fill-above { fill: rgba(46, 204, 113, 0.13); }
.fill-below { fill: rgba(255, 93, 93, 0.13); }

/* ---------- footer ---------- */
.rr-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 2px 0;
  color: var(--muted);
  font-size: 11.5px;
}

.pricedot { fill: var(--spot); }

.rr-age {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--grid);
}
.rr-age.live { color: var(--bull); border-color: rgba(46, 204, 113, 0.4); }
.rr-age.stale { color: var(--bear); border-color: rgba(255, 93, 93, 0.5); }
.rr-error-banner {
  margin: 10px 0 0;
  padding: 10px 14px;
  border: 1px solid rgba(255, 93, 93, 0.5);
  border-radius: 8px;
  background: rgba(255, 93, 93, 0.08);
  color: var(--bear);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
}

.rr-legend {
  display: flex;
  gap: 18px;
  padding: 2px 6px 10px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--muted-strong);
}
.rr-legend .lg {
  display: inline-block;
  width: 16px;
  height: 0;
  margin-right: 7px;
  vertical-align: 3px;
  border-radius: 2px;
}
.rr-legend .lg.spot { border-top: 2.2px solid var(--spot); }
.rr-legend .lg.close { border-top: 2px dashed var(--muted); }
.rr-legend .lg.flow { border-top: 2px solid var(--rr); }
.linelab {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.linelab.spot { fill: var(--spot); }
.linelab.flow { fill: var(--rr); }

.priceline.above { stroke: var(--bull); }
.priceline.below { stroke: var(--bear); }
.rrline.pos { stroke: var(--bull); }
.rrline.neg { stroke: var(--bear); }
.linelab.bulllab, .axlab.bulllab { fill: var(--bull); }
.linelab.bearlab, .axlab.bearlab { fill: var(--bear); }
.rr-legend .lg.duo {
  border-top: none;
  height: 4px;
  background: linear-gradient(90deg, var(--bull) 0 50%, var(--bear) 50% 100%);
}