/* ──────────────────────────────────────────────────────────────────
   Strata v3 — three structural gates.
   Additive styles only. Inherits all tokens + base from styles.css,
   transcript / agent-explainer chrome from strata.css, and the
   opp-card / honesty-note chrome from strata-v2.css.
   No new colors introduced outside the existing palette.
   ────────────────────────────────────────────────────────────────── */

/* ── §02 The three gates ─────────────────────────────────────────── */
.gates-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px;
}
.gate {
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.gate-head {
  padding: 16px 20px;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border-subtle);
}
.gate-num {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-tertiary); display: block; margin-bottom: 6px;
}
.gate-title {
  font-size: 16px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em;
}
.gate-body { padding: 0; flex: 1; display: flex; flex-direction: column; }

/* expert vs agent contrast — muted vs primary, the heart of the pitch */
.gate-side { padding: 16px 20px; }
.gate-side-expert {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border-subtle);
}
.gate-side-agent {
  background: var(--bg-white);
  border-left: 3px solid var(--primary);
  flex: 1;
}
.gate-role {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; display: block; margin-bottom: 7px;
}
.gate-side-expert .gate-role { color: var(--text-muted); }
.gate-side-agent .gate-role { color: var(--primary); }
.gate-text { font-size: 13px; line-height: 1.6; }
.gate-side-expert .gate-text { color: var(--text-muted); }
.gate-side-agent .gate-text { color: var(--text-secondary); }
.gate-evidence {
  padding: 12px 20px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  font-size: 11.5px; line-height: 1.5; color: var(--text-tertiary);
}
.gate-evidence .gate-ev-lbl {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 4px;
}

/* ── §03 The discovery funnel ────────────────────────────────────── */
.funnel {
  margin-top: 32px;
  display: flex; flex-direction: column; gap: 10px;
  max-width: 860px;
}
.funnel-stage {
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated);
  display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center;
  padding: 16px 22px;
  margin: 0 auto;
  transition: border-color 0.18s;
}
.funnel-stage:hover { border-color: var(--primary); }
.funnel-idx {
  font-family: var(--font-mono); font-size: 11px; color: var(--text-faint);
  letter-spacing: 0.04em;
}
.funnel-main { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.funnel-label { font-size: 14px; font-weight: 500; color: var(--text-primary); }
.funnel-note {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
  color: var(--text-muted);
}
.funnel-n {
  font-family: var(--font-mono); font-size: 22px; font-weight: 700;
  color: var(--primary); font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
  white-space: nowrap; justify-self: end;
}
.funnel-arrow {
  text-align: center; color: var(--text-faint); font-size: 13px; line-height: 1;
  font-family: var(--font-mono);
}

/* ── §04 Hero card extensions (reuse .opp-card chrome from v2) ────── */
.opp-meth-tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 2px 8px; border-radius: 2px; border: 1px solid;
  white-space: nowrap;
}
.opp-meth-tag.sensitive { color: var(--cpg-teal); border-color: var(--cpg-teal); background: rgba(8,160,151,0.07); }
.opp-meth-tag.resistant { color: var(--accent-amber); border-color: var(--accent-amber); background: rgba(180,83,9,0.07); }

/* gene note — the punchline, prominent */
.opp-gene-note {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-white);
  font-size: 12.5px; line-height: 1.55; color: var(--text-secondary);
}
.opp-gene-note-lbl {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent-violet); display: block; margin-bottom: 5px;
}
.opp-gene-note strong { color: var(--text-primary); }

/* replication strip — per-screen r/p */
.opp-rep-strip {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  padding: 12px 16px;
}
.opp-rep-strip-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
  margin-bottom: 8px;
}
.opp-rep-strip-lbl {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-tertiary);
}
.opp-rep-strength {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.06em;
  padding: 2px 7px; border-radius: 2px; border: 1px solid; white-space: nowrap;
}
.opp-rep-strength.strong { color: #15803D; border-color: #15803D; background: rgba(21,128,61,0.06); }
.opp-rep-strength.partial { color: var(--text-muted); border-color: var(--border-strong); background: var(--bg-white); }
.opp-rep-screens { display: flex; gap: 8px; flex-wrap: wrap; }
.opp-screen {
  flex: 1; min-width: 88px;
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-white);
  padding: 8px 10px;
  display: flex; flex-direction: column; gap: 2px;
}
.opp-screen-name {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  color: var(--text-tertiary); text-transform: uppercase;
}
.opp-screen-r {
  font-family: var(--font-mono); font-size: 14px; font-weight: 600;
  font-variant-numeric: tabular-nums; color: var(--text-primary); letter-spacing: -0.01em;
}
.opp-screen-r.neg { color: var(--cpg-teal); }
.opp-screen-r.pos { color: var(--accent-amber); }
.opp-screen-p {
  font-family: var(--font-mono); font-size: 10px; color: var(--text-muted);
}

/* functional silencing stat */
.opp-silencing {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-white);
  padding: 12px 16px;
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
}
.opp-silencing-lbl {
  font-size: 11.5px; line-height: 1.4; color: var(--text-secondary);
}
.opp-silencing-lbl .arrow { color: var(--cpg-teal); }
.opp-silencing-val {
  font-family: var(--font-mono); font-size: 16px; font-weight: 600;
  font-variant-numeric: tabular-nums; color: var(--cpg-teal); letter-spacing: -0.01em;
  white-space: nowrap;
}

/* cross-indication recurrence readout */
.opp-recurrence {
  padding: 12px 16px; background: var(--bg-elevated); flex: 1;
}
.opp-recurrence-lbl {
  font-size: 11.5px; line-height: 1.5; color: var(--text-secondary); margin-bottom: 8px;
}
.opp-recurrence-lbl strong { color: var(--text-primary); }
.opp-recur-bars {
  display: flex; align-items: flex-end; gap: 2px; height: 28px;
}
.opp-recur-bar {
  flex: 1; min-width: 2px; border-radius: 1px 1px 0 0;
  background: var(--cpg-teal);
}
.opp-recur-bar.pos { background: var(--accent-amber); }
.opp-recur-bar.sig { outline: 1px solid #15803D; outline-offset: -1px; }

/* lead-card emphasis on the first (top) lead */
.opp-card.is-lead { border-color: var(--primary); }
.opp-card.is-lead .opp-card-head { background: rgba(15,98,254,0.05); }

/* ── §05 Honesty rails ───────────────────────────────────────────── */
.honesty-rails {
  margin-top: 28px;
  display: flex; flex-direction: column; gap: 12px;
  max-width: 80ch;
}
.honesty-rail {
  border: 1px solid var(--border-subtle); border-left: 3px solid var(--accent-amber);
  border-radius: 2px; background: var(--bg-elevated);
  padding: 14px 18px;
  display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: baseline;
  font-size: 13px; line-height: 1.6; color: var(--text-secondary);
}
.honesty-rail .hr-n {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--accent-amber); font-weight: 700;
}
.honesty-rail strong { color: var(--text-primary); }

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .gates-grid { grid-template-columns: 1fr; }
  .opp-cards { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .funnel-stage { grid-template-columns: 1fr auto; gap: 10px; }
  .funnel-idx { display: none; }
  .opp-rep-screens { flex-direction: column; }
}