/* ──────────────────────────────────────────────────────────────────
   Strata v4 — interactive report explorer + agent-transcript replay.
   Additive styles only. Inherits all tokens + base from styles.css,
   transcript / agent chrome from strata.css, opp-card chrome from
   strata-v2.css, and the funnel / replication / honesty chrome from
   strata-v3.css. No new colors outside the existing palette.
   ────────────────────────────────────────────────────────────────── */

/* ── Interpretation legend (top of the agent report) ─────────────── */
.v4-legend {
  margin: 22px 0 6px;
  border: 1px solid var(--border-subtle);
  border-left: 2px solid var(--primary);
  border-radius: 2px;
  background: var(--bg-deep);
  padding: 14px 18px 16px;
}
.v4-legend-title {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 10px;
}
.v4-legend-tbl { width: 100%; border-collapse: collapse; }
.v4-legend-tbl th {
  text-align: left; vertical-align: top; white-space: nowrap;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  color: var(--primary); padding: 6px 18px 6px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.v4-legend-tbl td {
  font-size: 12.5px; color: var(--text-secondary); line-height: 1.5;
  padding: 6px 0; border-bottom: 1px solid var(--border-subtle);
}
.v4-legend-tbl tr:last-child th, .v4-legend-tbl tr:last-child td { border-bottom: none; }
.v4-legend-tbl code { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-primary); }
.v4-legend-tbl b { color: var(--text-primary); font-weight: 600; }
.v4-lg-neg { color: var(--cpg-teal); font-weight: 600; }
.v4-lg-pos { color: var(--accent-amber); font-weight: 600; }
@media (max-width: 640px) {
  .v4-legend-tbl, .v4-legend-tbl tbody, .v4-legend-tbl tr,
  .v4-legend-tbl th, .v4-legend-tbl td { display: block; }
  .v4-legend-tbl th { border-bottom: none; padding-bottom: 0; white-space: normal; }
  .v4-legend-tbl td { padding-top: 2px; }
}

/* ── §02 Transcript replay — tabs + shell ────────────────────────── */
.v4-tabs {
  display: flex; gap: 0; margin-top: 32px; flex-wrap: wrap;
  border: 1px solid var(--border-subtle); border-radius: 2px; overflow: hidden;
  background: var(--bg-elevated);
}
.v4-tab {
  flex: 1; min-width: 180px;
  text-align: left; cursor: pointer;
  padding: 14px 18px; background: transparent;
  border: none; border-right: 1px solid var(--border-subtle);
  font: inherit; color: var(--text-secondary);
  transition: background-color 0.15s, color 0.15s;
}
.v4-tab:last-child { border-right: none; }
.v4-tab:hover { background-color: rgba(15, 98, 254, 0.04); }
.v4-tab.is-active { background: var(--bg-white); color: var(--text-primary); }
.v4-tab.is-active .v4-tab-idx { color: var(--primary); }
.v4-tab-idx {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 6px;
}
.v4-tab-q { font-size: 13px; line-height: 1.45; font-weight: 500; }

.v4-transcript-shell {
  margin-top: 16px;
  border: 1px solid var(--border-subtle); border-radius: 2px; overflow: hidden;
  background: var(--bg-elevated);
}
.v4-transcript-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 16px 20px; background: var(--bg-deep);
  border-bottom: 1px solid var(--border-subtle);
}
.v4-tq-label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); flex-shrink: 0;
}
.v4-tq {
  font-size: 15px; font-weight: 500; color: var(--text-primary); flex: 1; min-width: 200px;
}
.v4-transcript-bar .btn { margin-left: auto; flex-shrink: 0; }

/* the replay transcript reuses .transcript / .t-step / .t-call / .t-result from strata.css */
.v4-transcript-shell .transcript { margin: 0; padding: 18px 20px; gap: 12px; }
.v4-transcript-shell .transcript:empty::after {
  content: "Press \25B6 Replay to play the agent's tool calls.";
  display: block; padding: 8px 0;
}
.v4-transcript-shell .t-step { background: var(--bg-white); }

/* answer narration */
.v4-answer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-white);
  padding: 20px 22px;
  opacity: 0; transform: translateY(6px);
  animation: tstep-in 0.4s cubic-bezier(.2,.8,.2,1) forwards;
}
.v4-answer-lbl {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--cpg-teal); display: block; margin-bottom: 10px;
}
.v4-answer-body {
  font-size: 14px; line-height: 1.7; color: var(--text-secondary); white-space: pre-wrap;
  max-width: 84ch;
}
.v4-answer-body strong { color: var(--text-primary); }

/* ── §02b Ask the agent (live) ───────────────────────────────────── */
.v4-ask { margin-top: 28px; }
.v4-ask-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  border: 1px solid var(--border-strong); border-radius: 2px;
  background: var(--bg-white); padding: 12px 14px;
}
.v4-ask-lbl {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-muted); flex-shrink: 0;
}
.v4-ask-input {
  flex: 1; min-width: 200px; border: none; background: transparent;
  font-family: var(--font-sans); font-size: 15px; color: var(--text-primary);
  padding: 6px 4px;
}
.v4-ask-input:focus { outline: none; }
.v4-ask-input::placeholder { color: var(--text-faint); }
.v4-ask-bar:focus-within { border-color: var(--primary); }
.v4-ask-bar .btn { flex-shrink: 0; }

.v4-ask-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.v4-ask-chip {
  cursor: pointer; font-family: var(--font-mono); font-size: 11.5px;
  color: var(--text-secondary); border: 1px solid var(--border-subtle); border-radius: 2px;
  padding: 6px 11px; background: var(--bg-white);
  transition: border-color 0.15s, color 0.15s, background-color 0.15s;
}
.v4-ask-chip:hover { border-color: var(--primary); color: var(--primary); background: rgba(15,98,254,0.04); }

.v4-ask-shell {
  margin-top: 18px;
  border: 1px solid var(--border-subtle); border-radius: 2px; overflow: hidden;
  background: var(--bg-elevated);
}
.v4-ask-shell-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 14px 20px; background: var(--bg-deep);
  border-bottom: 1px solid var(--border-subtle);
}
.v4-ask-shell .transcript { margin: 0; padding: 18px 20px; gap: 12px; }
.v4-ask-shell .t-step { background: var(--bg-white); }
.v4-ask-mode {
  margin-left: auto; flex-shrink: 0;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
}
.v4-ask-mode.is-live { color: #15803D; }
.v4-ask-mode.is-scripted { color: var(--accent-amber); }
.v4-ask-fallback {
  margin-top: 12px; font-family: var(--font-mono); font-size: 11.5px;
  color: var(--accent-amber);
}

/* markdown-ish rendering of the agent answer */
.v4-md .v4-md-h {
  color: var(--text-primary); font-weight: 600; margin: 14px 0 6px; line-height: 1.4;
}
.v4-md .v4-md-h1 { font-size: 17px; }
.v4-md .v4-md-h2 { font-size: 15px; }
.v4-md .v4-md-h3, .v4-md .v4-md-h4 {
  font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  font-family: var(--font-mono); color: var(--text-tertiary);
}
.v4-md .v4-md-p { margin: 0 0 6px; }
.v4-md .v4-md-li { margin: 0 0 4px; padding-left: 16px; position: relative; }
.v4-md .v4-md-li::before { content: "·"; position: absolute; left: 4px; color: var(--cpg-teal); }
.v4-md .v4-md-gap { height: 8px; }
.v4-answer-body.v4-md { white-space: normal; }
.v4-answer-body.is-loading { color: var(--text-muted); font-style: italic; }

/* ── "Interpret this result" card (§03 + §04) ────────────────────── */
.v4-interpret-btn { margin-top: 16px; }
.v4-interpret {
  margin-top: 14px;
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--cpg-teal);
  border-radius: 2px;
  background: var(--bg-white);
  padding: 16px 18px;
  animation: tstep-in 0.4s cubic-bezier(.2,.8,.2,1) forwards;
}
.v4-interpret-head {
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px;
}
.v4-interpret-eyebrow {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--cpg-teal);
}
.v4-interpret-badge {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
}
.v4-interpret-badge.is-live { color: #15803D; }
.v4-interpret-badge.is-scripted { color: var(--accent-amber); }

/* ── §03 Explorer controls ───────────────────────────────────────── */
.v4-explorer-ctrl {
  margin-top: 32px;
  display: flex; align-items: flex-end; gap: 20px; flex-wrap: wrap;
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated); padding: 20px 22px;
}
.v4-toggle {
  display: inline-flex; border: 1px solid var(--border-strong); border-radius: 2px; overflow: hidden;
}
.v4-toggle-btn {
  cursor: pointer; padding: 9px 18px; background: var(--bg-white);
  border: none; border-right: 1px solid var(--border-subtle);
  font-family: var(--font-sans); font-size: 13px; font-weight: 500; color: var(--text-secondary);
  transition: background-color 0.15s, color 0.15s;
}
.v4-toggle-btn:last-child { border-right: none; }
.v4-toggle-btn:hover { color: var(--primary); }
.v4-toggle-btn.is-active { background: var(--primary); color: var(--bg-white); }

.v4-select-wrap { display: flex; flex-direction: column; gap: 6px; min-width: 240px; flex: 1; max-width: 360px; }
.v4-select-lbl {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-muted);
}
.v4-select {
  font-family: var(--font-sans); font-size: 14px; color: var(--text-primary);
  padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: 2px;
  background: var(--bg-white); cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%2371717A' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px;
}
.v4-select:focus { border-color: var(--primary); outline: none; }

.v4-source {
  margin-left: auto; display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--text-muted);
}
.v4-source-dot {
  width: 9px; height: 9px; border-radius: 50%;
  border: 1.5px solid var(--text-faint); background: transparent;
}
.v4-source.is-live .v4-source-dot { background: #15803D; border-color: #15803D; }
.v4-source.is-live .v4-source-txt { color: #15803D; }
.v4-source.is-cached .v4-source-dot { background: transparent; border-color: var(--accent-amber); }
.v4-source.is-cached .v4-source-txt { color: var(--accent-amber); }

.v4-report-out { margin-top: 28px; }
.v4-report-out:empty::after {
  content: "Select a report above.";
  display: block; color: var(--text-muted); font-size: 13px; font-style: italic;
  padding: 8px 0;
}

/* ── Report header block ─────────────────────────────────────────── */
.v4-rep-head {
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated); padding: 22px 24px; margin-bottom: 20px;
}
.v4-rep-title {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 8px;
}
.v4-rep-drug { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; color: var(--text-primary); }
.v4-rep-type {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-tertiary);
  border: 1px solid var(--border-subtle); border-radius: 2px; padding: 3px 9px;
  background: var(--bg-white);
}
.v4-rep-meta {
  display: flex; gap: 8px 20px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); letter-spacing: 0.02em;
}
.v4-rep-meta .v4-rm-k { color: var(--text-tertiary); }
.v4-rep-meta .v4-rm-v { color: var(--text-primary); }

/* ── Funnel (reuse v3 .funnel chrome; tighter spacing here) ──────── */
.v4-funnel-wrap { margin-bottom: 22px; }
.v4-sub-marker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-tertiary); margin: 0 0 14px;
}
.v4-report-out .funnel { margin-top: 0; }

/* ── Drug leads — reuse .opp-card / replication / silencing chrome ─ */
.v4-report-out .opp-cards { margin-top: 0; }

/* hero highlight reuses .opp-card.is-lead from v3 */
.v4-hero-flag {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--primary);
  border: 1px solid var(--primary); border-radius: 2px; padding: 2px 7px;
  background: rgba(15,98,254,0.06); white-space: nowrap;
}

/* ── Cancer-type leads as a table ────────────────────────────────── */
.v4-ct-table-wrap {
  border: 1px solid var(--border-subtle); border-radius: 2px; overflow: hidden;
  background: var(--bg-elevated); margin-bottom: 22px;
}
.v4-ct-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.v4-ct-table th {
  text-align: left; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-muted); font-weight: 500; padding: 11px 16px;
  background: var(--bg-deep); border-bottom: 1px solid var(--border-subtle); white-space: nowrap;
}
.v4-ct-table th.num, .v4-ct-table td.num {
  text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono);
}
.v4-ct-table td { padding: 10px 16px; border-top: 1px solid var(--border-subtle); color: var(--text-secondary); vertical-align: middle; }
.v4-ct-table tbody tr:first-child td { border-top: none; }
.v4-ct-table tbody tr:hover { background-color: rgba(15, 98, 254, 0.04); }
.v4-ct-drug { color: var(--text-primary); font-weight: 600; }
.v4-ct-gene { font-family: var(--font-mono); color: var(--text-primary); }
.v4-ct-table td.num.neg { color: var(--cpg-teal); }
.v4-ct-table td.num.pos { color: var(--accent-amber); }
.v4-dir-tag {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 2px 7px; border-radius: 2px; border: 1px solid; white-space: nowrap;
}
.v4-dir-tag.sensitive { color: var(--cpg-teal); border-color: var(--cpg-teal); background: rgba(8,160,151,0.07); }
.v4-dir-tag.resistant { color: var(--accent-amber); border-color: var(--accent-amber); background: rgba(180,83,9,0.07); }
.v4-lvl-badge {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.04em;
  padding: 2px 7px; border-radius: 2px; border: 1px solid var(--primary);
  color: var(--primary); background: rgba(15,98,254,0.06); white-space: nowrap;
}
.v4-rep-yes { color: #15803D; font-family: var(--font-mono); font-size: 12px; }
.v4-rep-no { color: var(--text-faint); font-family: var(--font-mono); font-size: 12px; }
.v4-ct-also {
  font-family: var(--font-mono); font-size: 11px; color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px;
}

/* ── connects-to chip list ───────────────────────────────────────── */
.v4-connects {
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated); padding: 18px 20px;
}
.v4-connects-lbl {
  font-size: 13px; line-height: 1.5; color: var(--text-secondary); margin-bottom: 12px;
}
.v4-connects-lbl strong { color: var(--text-primary); }
.v4-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.v4-chip {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary);
  border: 1px solid var(--border-subtle); border-radius: 2px;
  padding: 5px 11px; background: var(--bg-white);
}

/* ── §04 Patient annotation ──────────────────────────────────────── */
.v4-stat-strip {
  margin-top: 28px;
  display: flex; align-items: center; gap: 14px 28px; flex-wrap: wrap;
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated); padding: 16px 20px;
}
.v4-stat-strip-lbl {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-tertiary);
}
.v4-stat { display: inline-flex; align-items: baseline; gap: 8px; }
.v4-stat-drug { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.v4-stat-rho {
  font-family: var(--font-mono); font-size: 15px; font-weight: 700; color: var(--cpg-teal);
  font-variant-numeric: tabular-nums;
}
.v4-stat-p { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.v4-stat-note {
  margin-left: auto; font-size: 11.5px; color: var(--text-muted); font-style: italic; max-width: 42ch;
}

.v4-leakage-note {
  border: 1px solid var(--border-subtle); border-left: 3px solid var(--accent-amber);
  border-radius: 2px; background: rgba(180,83,9,0.04);
  padding: 12px 16px; margin-bottom: 20px;
  font-size: 12.5px; line-height: 1.5; color: var(--text-secondary);
}
.v4-leakage-note .v4-leakage-icon { color: var(--accent-amber); margin-right: 6px; }

.v4-pred-cards { margin-top: 0; }
.opp-card.v4-pred { border-left: 3px solid var(--border-subtle); }
.opp-card.v4-pred.sensitive { border-left-color: var(--cpg-teal); }
.opp-card.v4-pred.resistant { border-left-color: var(--accent-amber); }
.opp-card.v4-pred.neutral { border-left-color: var(--border-strong); }

.opp-meth-tag.v4-call.neutral {
  color: var(--text-muted); border: 1px solid var(--border-strong); background: var(--bg-white);
}

.v4-pred-gt-row { margin: 2px 0 10px; }
.v4-pred-gt {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--text-secondary);
}
.v4-pred-gt em { color: var(--text-muted); font-style: normal; font-size: 10.5px; }

.v4-drivers { margin-top: 6px; }
.v4-drivers-lbl {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.v4-drivers-sub { color: var(--text-faint); text-transform: none; letter-spacing: 0; }
.v4-drivers-empty { font-size: 12px; color: var(--text-muted); font-style: italic; }
.v4-driver {
  display: grid; grid-template-columns: 84px 28px 1fr 40px; align-items: center;
  gap: 8px; margin-bottom: 6px;
}
.v4-driver-gene { font-family: var(--font-mono); font-size: 12px; color: var(--text-primary); }
.v4-driver-lvl { font-family: var(--font-mono); font-size: 10px; color: var(--primary); }
.v4-driver-bar-wrap {
  height: 7px; border-radius: 2px; background: var(--bg-deep); overflow: hidden; position: relative;
}
.v4-driver-bar { display: block; height: 100%; border-radius: 2px; }
.v4-driver-bar.pos { background: var(--cpg-teal); }
.v4-driver-bar.neg { background: var(--accent-amber); }
.v4-driver-pct {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--text-muted);
  text-align: right; font-variant-numeric: tabular-nums;
}

.v4-paste { margin-top: 24px; }
.v4-paste-summary {
  cursor: pointer; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.02em;
  color: var(--text-tertiary); padding: 8px 0;
}
.v4-paste-summary:hover { color: var(--primary); }
.v4-paste-summary code { color: var(--text-secondary); }
.v4-paste-note { font-size: 12px; color: var(--text-muted); margin: 4px 0 10px; }
.v4-paste-area {
  width: 100%; box-sizing: border-box; resize: vertical;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--text-primary);
  border: 1px solid var(--border-strong); border-radius: 2px; background: var(--bg-white);
  padding: 12px 14px; margin-bottom: 10px;
}
.v4-paste-area:focus { border-color: var(--primary); outline: none; }

/* ── states ──────────────────────────────────────────────────────── */
.v4-state {
  border: 1px solid var(--border-subtle); border-radius: 2px;
  background: var(--bg-elevated); padding: 22px 24px;
  font-size: 14px; color: var(--text-secondary);
}
.v4-state.is-loading { font-family: var(--font-mono); font-size: 13px; color: var(--text-muted); }
.v4-state.is-error { border-left: 3px solid var(--methyl-rose); }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .v4-report-out .opp-cards { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .v4-tabs { flex-direction: column; }
  .v4-tab { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .v4-tab:last-child { border-bottom: none; }
  .v4-explorer-ctrl { flex-direction: column; align-items: stretch; }
  .v4-source { margin-left: 0; }
  .v4-ct-also { max-width: none; white-space: normal; }
}
@media (prefers-reduced-motion: reduce) {
  .v4-answer { animation: none; opacity: 1; transform: none; }
}