/* ============================================================================
   review.css — the PR change-review surface (two-pane: summary/key-changes +
   before/after eval grids / file diff). Shared by 06-review + guard-review.
   Sidebar styles live in sidebar.css. Sourced verbatim so migration is
   pixel-identical. (optimize-review's overall-metric header + compact variant
   are added when that page is folded in.)
   ============================================================================ */
html, body { height: 100%; overflow: hidden; }
.shell { display: flex; height: 100vh; }
.main { flex: 1; display: grid; grid-template-columns: 1fr 1.18fr; min-width: 0; }

/* left pane */
.left { padding: 26px 30px; overflow-y: auto; border-right: 1px solid var(--border); }
.crumb { font-size: 13px; color: var(--text-faint); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.crumb b { color: var(--violet); font-weight: 500; }
.crumb .cur { color: var(--text); font-weight: 600; }
.left h2 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; margin: 26px 0 12px; }
.left p { font-size: 14px; line-height: 1.7; color: var(--text-muted); }
.left code, .left .mono { font-family: var(--font-mono); font-size: 12.5px; color: var(--text); background: var(--panel-2); padding: 1px 6px; border-radius: 5px; }
.chips { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); border-radius: 10px; padding: 9px 13px; background: var(--panel); }
.chip .l { font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); }
.chip .v { font: 700 15px var(--font-mono); margin-top: 3px; }
.chip .v.up { color: var(--pass); } .chip .v.flat { color: var(--text-muted); }
.kc { list-style: none; margin-top: 6px; display: flex; flex-direction: column; gap: 14px; }
.kc li { font-size: 13.5px; line-height: 1.65; color: var(--text-muted); padding-left: 16px; position: relative; }
.kc li::before { content: "•"; position: absolute; left: 0; color: var(--accent); }

/* right pane */
.right { display: flex; flex-direction: column; min-width: 0; overflow: hidden; }
.rtop { display: flex; align-items: center; gap: 10px; padding: 14px 22px; border-bottom: 1px solid var(--border); }
.rtabs { display: flex; gap: 6px; }
.rtab { font-size: 13px; font-weight: 500; padding: 7px 13px; border-radius: 8px; border: 1px solid transparent; color: var(--text-muted); cursor: pointer; display: flex; gap: 7px; align-items: center; }
.rtab.on { background: var(--panel-2); color: var(--text); border-color: var(--border-strong); }
.rtab .ticon { width: 15px; height: 15px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.rtop .sp { flex: 1; }
.rtop .act { font-size: 13px; color: var(--text-muted); display: flex; gap: 7px; align-items: center; padding: 7px 11px; border-radius: 8px; border: 1px solid var(--border); cursor: pointer; }
.rtop .act.solid { background: var(--panel-2); color: var(--text); }
.rbody { flex: 1; overflow-y: auto; padding: 18px 22px 60px; }

/* scenario block */
.scn { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; overflow: hidden; background: var(--panel); }
.scn-head { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 14px; padding: 14px 16px; cursor: pointer; }
.scn-head .nm { display: flex; align-items: center; gap: 9px; font-size: 14.5px; font-weight: 600; }
.scn-head .nm .new { font: 600 9.5px var(--font-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--accent); border: 1px solid var(--accent-dim); border-radius: 999px; padding: 1px 7px; }
.scn-head .caret { color: var(--text-faint); transition: transform .15s; font-size: 11px; }
.scn.collapsed .caret { transform: rotate(-90deg); }
.scn-met { display: flex; gap: 26px; text-align: right; }
.scn-met .m { min-width: 56px; }
.scn-met .lab { font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); }
.scn-met .val { font: 600 13.5px var(--font-mono); margin-top: 3px; }
.val.up { color: var(--pass); } .val.dn { color: var(--fail); } .val.flat { color: var(--text-muted); }

.scn-body { border-top: 1px solid var(--border); padding: 12px 16px 16px; }
.scn.collapsed .scn-body { display: none; }

/* before/after group headers + task rows share one grid */
.ba-labels, .ba-cols, .evtask { display: grid; grid-template-columns: 1fr 84px 84px; align-items: center; gap: 16px; }
.ba-labels { margin-bottom: 2px; }
.ba-labels .bl, .ba-labels .al { text-align: center; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); position: relative; }
.ba-labels .bl::after, .ba-labels .al::after { content:""; position:absolute; left:6px; right:6px; bottom:-4px; height:1px; background:var(--border); }
.ba-cols { padding: 9px 0 8px; }
.ba-cols .tlabel { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); display:flex; gap:12px; align-items:center; }
.ba-cols .tlabel a { color: var(--accent); text-transform: none; letter-spacing: 0; font-size: 12px; }
.ba-cols .nums { display: grid; grid-template-columns: repeat(3, 18px); gap: 6px; }
.ba-cols .nums b { width: 18px; text-align: center; font: 500 11px var(--font-mono); color: var(--text-muted); }

.evtask { padding: 5px 0; border-top: 1px solid rgba(255,255,255,.03); }
.evtask .q { font-size: 12.5px; color: var(--text-muted); line-height: 1.35; display: flex; gap: 9px; }
.evtask .q .id { color: var(--text-faint); font: 600 10.5px var(--font-mono); flex-shrink: 0; padding-top: 1px; }
.grp { display: grid; grid-template-columns: repeat(3, 18px); gap: 6px; }
.gc { width: 18px; height: 18px; border-radius: 4px; }
.gc.g { background: var(--pass); } .gc.r { background: var(--fail); }
/* clickable squares + selection ring (06-review; guard-review squares are static) */
.gc.clk { cursor: pointer; transition: box-shadow .12s, transform .12s; }
.gc.clk:hover { transform: scale(1.08); }
.gc.sel { box-shadow: 0 0 0 2px var(--accent); }

.reg-line { font-size: 12px; color: var(--text-muted); }
.reg-line b { color: var(--pass); }
.reg-note { font-size: 12.5px; color: var(--text-faint); margin: 2px 0 12px; padding-left: 2px; }
.reg-note b { color: var(--text-muted); }

/* ── optimize-review variants ─────────────────────────────────────────────
   overall-metric header band (cumulative gpt-5 → tuned), per-scenario rationale
   note, and a caret-less compact scenario list. All opt-in (the .ovhead wrapper
   stays empty + .evals.compact is unset for 06-review / guard-review). */
.ov-head { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.ov { border: 1px solid var(--border); border-radius: 11px; background: var(--panel); padding: 12px 15px; }
.ov .l { font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-faint); }
.ov .v { font: 700 17px var(--font-mono); margin-top: 5px; letter-spacing: -.01em; }
.ov .v.flat { color: var(--text); } .ov .v.up { color: var(--pass); }
.ov .s { font-size: 11px; color: var(--text-muted); margin-top: 3px; }

.scn-why { font-size: 12.5px; color: var(--text-muted); line-height: 1.55; margin-bottom: 12px; }
.scn-why b { color: var(--text); }

.evals.compact .scn { border-radius: 10px; margin-bottom: 6px; }
.evals.compact .scn-head { padding: 9px 16px; }
.evals.compact .scn-head .nm { font-size: 13.5px; }

/* file changes tab */
.files { display: none; }
.files.on { display: block; }
.evals.off { display: none; }
.diff { font-family: var(--font-mono); font-size: 12.5px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); margin-bottom: 12px; }
.diff .fname { background: var(--panel-2); padding: 8px 14px; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.diff .ln { padding: 2px 14px; white-space: pre-wrap; }
.diff .add { background: var(--diff-add-bg); color: var(--diff-add-fg); }
.diff .del { background: var(--diff-del-bg); color: var(--diff-del-fg); }
.diff .ctx { color: var(--text-faint); }