.mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 480px) {
  .mode-tab {
    padding: 16px 6px;
    font-size: 15px;
  }
}

.signal-badge {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 6px 10px;
  background: var(--card);
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
}

.forum-topic-head h3 {
  margin-right: auto;
}

.sentiment-evidence {
  margin-top: 14px;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.sentiment-evidence summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 700;
}

.sentiment-evidence a {
  color: var(--ink);
  text-decoration: none;
}

.heat-controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  margin: 18px 0;
  font-size: 12px;
}

.heat-controls select,
#signal-topic {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 9px 12px;
  color: var(--ink);
}

.heat-alerts {
  margin: 24px 0;
  padding: 22px;
  border-left: 4px solid var(--red);
  background: #fff4f2;
}

.heat-alerts h3 { margin-top: 0; }
.heat-alerts article { border-top: 1px solid #edd2cd; padding: 12px 0; }
.heat-alerts article:first-child { border-top: 0; }
.heat-alerts p { margin: 5px 0 0; color: var(--muted); }
.score-stat strong { color: var(--red); font-size: 24px; }

.score-breakdown {
  margin-top: 12px;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  font-size: 12px;
}

.score-breakdown summary { cursor: pointer; font-weight: 700; }
.score-breakdown p { display: flex; justify-content: space-between; margin: 8px 0; }
.backtest-panel { margin-top: 40px; padding: 24px; background: var(--soft); }
.backtest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.backtest-grid div { background: var(--card); padding: 14px; }
.backtest-grid span,.backtest-grid small { display: block; color: var(--muted); }
.backtest-grid strong { display: block; margin: 8px 0; font-size: 22px; }

@media (max-width: 760px) {
  .backtest-grid { grid-template-columns: 1fr; }
}

.metric-help {
  position: relative;
  cursor: help;
  outline: none;
}

.metric-help::after {
  content: "ⓘ";
  margin-left: 5px;
  color: var(--muted);
  font-size: 10px;
  vertical-align: top;
}

.metric-help:focus-visible {
  box-shadow: 0 0 0 2px rgba(180,35,47,.25);
}

.metric-tooltip {
  position: fixed;
  z-index: 9999;
  width: min(360px, calc(100vw - 24px));
  max-height: min(480px, calc(100vh - 24px));
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #17202a;
  color: #fff;
  box-shadow: 0 14px 38px rgba(0,0,0,.28);
  font-size: 12px;
  line-height: 1.65;
  pointer-events: auto;
}

.metric-tooltip h4 { margin: 0 0 8px; font-size: 15px; }
.metric-tooltip p { margin: 7px 0; color: #e5e9ed; }
.metric-tooltip strong { color: #fff; }
.metric-tooltip code { white-space: normal; color: #ffd7da; font-family: inherit; }
.metric-tooltip .tooltip-note { color: #aeb7c1; font-size: 11px; }