/* ============ SCHEMATIC ROOT ============ */
.sch-root{position:fixed;top:92px;left:52px;right:0;bottom:0;background:var(--bg);overflow:hidden}
.sch-root.hidden{display:none}
body.no-metabar .sch-root{top:48px}
body.no-metabar .sch-inspector{top:60px}

.sch-canvas{position:absolute;inset:0;cursor:grab}
.sch-canvas:active{cursor:grabbing}
.sch-canvas.hidden{display:none}
/* `pointer-events:all` — without it, browsers only hit-test the painted
   shapes inside the SVG and mousedown on empty canvas falls through, so
   d3.zoom never receives the drag and pan silently breaks. */
.sch-canvas svg{width:100%;height:100%;display:block;touch-action:none;pointer-events:all}

/* subtle workshop grid */
.sch-grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(45,70,110,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(45,70,110,.05) 1px,transparent 1px);background-size:48px 48px}

/* =========== GRID (phase × voltage) =========== */
/* Horizontal voltage-band backdrops — the "bus rails" the eye follows. */
.sch-vrow-band{fill:rgba(56,189,248,.025);stroke:rgba(56,189,248,.1);stroke-width:1;stroke-dasharray:8 6}
.sch-vrow-band.vrow-0{fill:rgba(245,158,11,.035);stroke:rgba(245,158,11,.18)}   /* ≥12V amber */
.sch-vrow-band.vrow-1{fill:rgba(56,189,248,.03);stroke:rgba(56,189,248,.18)}    /* 5-11V cyan */
.sch-vrow-band.vrow-2{fill:rgba(52,211,153,.03);stroke:rgba(52,211,153,.18)}    /* 3V3 emerald */
.sch-vrow-band.vrow-3{fill:rgba(192,132,252,.03);stroke:rgba(192,132,252,.18)}  /* 1V8-2V5 violet */
.sch-vrow-head{fill:rgba(20,32,48,.92);stroke:var(--border);stroke-width:1}
.sch-vrow-label{font-family:var(--mono);font-size:10px;fill:var(--text);text-anchor:middle;letter-spacing:.4px;text-transform:uppercase;font-weight:700}

/* Vertical phase column guides (lighter — they're the secondary axis) */
.sch-phase-col{fill:rgba(255,255,255,.012);stroke:rgba(255,255,255,.05);stroke-width:1}
.sch-phase-col.col-none{fill:rgba(110,125,150,.04);stroke:rgba(110,125,150,.12)}
.sch-phase-head{fill:rgba(20,32,48,.92);stroke:rgba(245,158,11,.35);stroke-width:1}
.sch-phase-label{font-family:var(--mono);font-size:12px;fill:var(--amber);text-anchor:middle;letter-spacing:.5px;font-weight:700}
.sch-phase-sub{font-family:var(--mono);font-size:9.5px;fill:var(--text-3);text-anchor:middle}

/* =========== PHASE CHIP ON RAILS =========== */
.sch-phase-chip{font-family:var(--mono);font-size:9px;font-weight:600;fill:var(--amber);text-anchor:middle;paint-order:stroke;stroke:var(--bg);stroke-width:3px}

/* =========== SPOF BADGE (top-5 critical nodes) =========== */
.sch-spof-badge{font-family:var(--mono);font-size:9.5px;font-weight:700;fill:oklch(0.78 0.17 25);text-anchor:middle;paint-order:stroke;stroke:var(--bg);stroke-width:3.2px;letter-spacing:.4px}
.sch-node.spof .sch-shape{stroke:oklch(0.75 0.17 25)!important;stroke-width:2.4px!important;filter:drop-shadow(0 0 6px rgba(236,100,75,.35))}
.sch-node.spof:not(.focus):not(.neighbor):not(.downstream):not(.upstream) .sch-shape{animation:spof-pulse 2.6s ease-in-out infinite}
@keyframes spof-pulse{0%,100%{filter:drop-shadow(0 0 4px rgba(236,100,75,.25))}50%{filter:drop-shadow(0 0 10px rgba(236,100,75,.55))}}

/* =========== CRITICALITY BLOCK IN INSPECTOR =========== */
.sch-criticality{background:rgba(52,211,153,.04);border-left:2px solid var(--emerald);padding-left:10px}
.sch-criticality.spof{background:rgba(236,100,75,.06);border-left-color:oklch(0.75 0.17 25)}
.sch-criticality.spof h3{color:oklch(0.82 0.17 25)!important}

/* Domain badge block — shows the net's functional domain + Opus/regex
   description in the inspector. */
.sch-domain{background:rgba(56,189,248,.04);border-left:2px solid var(--cyan);padding-left:10px}
.sch-domain h3{color:var(--cyan)!important;text-transform:lowercase;letter-spacing:.3px}
.sch-domain-desc{font-size:12px;color:var(--text-2);line-height:1.45;margin-bottom:4px}
.sch-domain-meta{font-size:11px;color:var(--text-3);font-family:var(--mono);display:flex;gap:6px;align-items:center}
.sch-domain-meta .k{text-transform:uppercase;letter-spacing:.3px}
.sch-domain-meta .mono{color:var(--text)}
.sch-crit-row{display:flex;flex-direction:column;gap:6px}
.sch-crit-bar{height:8px;background:var(--bg-deep);border-radius:4px;overflow:hidden;border:1px solid var(--border)}
.sch-crit-fill{height:100%;background:linear-gradient(90deg,var(--emerald),var(--amber),oklch(0.75 0.17 25));border-radius:4px;transition:width .3s ease-out}
.sch-crit-val{font-size:11.5px;color:var(--text-2);font-family:var(--mono)}
.sch-crit-val strong{color:var(--text);font-weight:700}

/* =========== LINKS =========== */
.sch-link{fill:none;stroke-linecap:round;transition:stroke-opacity .2s,stroke .2s}
.sch-link-produces{stroke:oklch(0.82 0.14 210);stroke-opacity:.7;stroke-width:1.4;stroke-dasharray:5 3}
.sch-link-powers{stroke:oklch(0.78 0.15 155);stroke-opacity:.78;stroke-width:1.4}
.sch-link-decouples{stroke:oklch(0.78 0.14 295);stroke-opacity:.55;stroke-width:1.1;stroke-dasharray:2 3}
/* Signal edges — toggled via "Signaux". Visible even at low zoom, with
   color per subkind so a tech can tell an enable from a clock at a glance. */
.sch-link-signal{stroke:#9fb4d4;stroke-opacity:.55;stroke-width:1.3;stroke-dasharray:3 3}
.sch-link-signal[data-subkind="enables"]{stroke:oklch(0.82 0.16 75);stroke-opacity:.8}
.sch-link-signal[data-subkind="clocks"]{stroke:oklch(0.78 0.15 155);stroke-opacity:.8}
.sch-link-signal[data-subkind="resets"]{stroke:oklch(0.72 0.20 25);stroke-opacity:.9}
.sch-link-signal[data-subkind="produces_signal"]{stroke:oklch(0.82 0.14 210);stroke-opacity:.7}
.sch-link-signal[data-subkind="consumes_signal"]{stroke:oklch(0.78 0.14 295);stroke-opacity:.6;stroke-dasharray:2 5}
.sch-link-signal[data-subkind="feedback_in"]{stroke:oklch(0.75 0.17 30);stroke-opacity:.7}
#schGraph.has-focus .sch-link:not(.active-link){stroke-opacity:.06}
#schGraph.has-focus .sch-link.active-link{stroke-opacity:1;stroke-width:2}

/* =========== NODES =========== */
.sch-node{cursor:pointer;transition:opacity .2s}
.sch-shape{transition:filter .2s,stroke-width .2s}
.sch-shape-rail{fill:rgba(52,211,153,.14);stroke:oklch(0.78 0.15 155);stroke-width:1.8}
.sch-shape-comp{fill:rgba(56,189,248,.12);stroke:oklch(0.82 0.14 210);stroke-width:1.4}
.sch-shape-passive{fill:rgba(56,189,248,.08);stroke:oklch(0.70 0.10 210);stroke-width:1}
.sch-shape-small{fill:rgba(110,125,150,.15);stroke:rgba(110,125,150,.5);stroke-width:1}

/* Importance-based shape tinting */
.sch-node.i-4 .sch-shape-comp{fill:rgba(56,189,248,.18);stroke-width:1.8}
.sch-node.i-3 .sch-shape-comp{fill:rgba(56,189,248,.14);stroke-width:1.5}
.sch-node.i-1 .sch-shape-passive,
.sch-node.i-0 .sch-shape-passive{fill:rgba(150,170,200,.10);stroke:rgba(150,170,200,.35);stroke-width:.8}

/* Special type tints */
.sch-node.t-connector .sch-shape-comp{fill:rgba(192,132,252,.15);stroke:oklch(0.78 0.14 295)}
.sch-node.t-fuse .sch-shape-comp{fill:rgba(245,158,11,.15);stroke:oklch(0.82 0.16 75)}
.sch-node.t-led .sch-shape-comp{fill:rgba(245,158,11,.20);stroke:oklch(0.82 0.16 75)}
.sch-node.t-diode .sch-shape-comp{fill:rgba(245,158,11,.10);stroke:oklch(0.75 0.14 75)}

.sch-node.nostuff .sch-shape{stroke-dasharray:3 3;opacity:.55}
/* Phase 4: passive component nodes render at 0.7 opacity — classifier role
 * assignment is heuristic and the tint cues the tech to verify.
 * When classifier_confidence lands on ComponentNode (Phase 4.1), replace the
 * constant with a JS-driven inline style keyed to max(0.4, d.classifier_confidence). */
.sch-node.passive-node{opacity:.7}

/* =========== SCHEMATIC SYMBOLS (per component type) =========== */
/* Stroke-only look, KiCad-like. Each type gets a family colour. */
.sch-sym-body{fill:none;stroke:var(--text-2);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.sch-sym-pin{stroke:var(--text-3);stroke-width:1;stroke-linecap:round}

.sch-sym-resistor{stroke:oklch(0.82 0.14 75);fill:rgba(245,158,11,.06)}            /* warm beige */
.sch-sym-cap{stroke:oklch(0.82 0.14 210);stroke-width:2}                            /* cyan plates */
.sch-sym-inductor{stroke:oklch(0.80 0.13 155);stroke-width:1.8;fill:none}          /* emerald coil */
.sch-sym-ferrite{stroke:oklch(0.78 0.10 60);fill:rgba(200,160,110,.08)}            /* tan bead */
.sch-sym-diode{stroke:oklch(0.82 0.16 75);fill:oklch(0.82 0.16 75 / 0.25)}         /* amber filled triangle */
.sch-sym-diode-bar{stroke:oklch(0.82 0.16 75);stroke-width:2}
.sch-sym-led-ray{stroke:oklch(0.85 0.18 75);stroke-width:1.2;fill:none}             /* brighter amber rays */
.sch-sym-fuse{stroke:oklch(0.78 0.16 30);fill:rgba(236,100,75,.08)}                 /* red-amber pill */
.sch-sym-transistor{stroke:oklch(0.82 0.14 210);stroke-width:1.6;fill:rgba(56,189,248,.06)}
.sch-sym-crystal{stroke:oklch(0.78 0.14 295);fill:rgba(192,132,252,.08)}            /* violet */
.sch-sym-connector{stroke:oklch(0.78 0.14 295);fill:rgba(192,132,252,.1)}

/* Focus / SPOF adjustments — override stroke width + glow */
.sch-node.spof .sch-sym-body{stroke-width:2.2}
#schGraph.has-focus .sch-node.focus .sch-sym-body{stroke-width:2.4;filter:drop-shadow(0 0 8px rgba(52,211,153,.5))}
#schGraph.has-focus .sch-node.downstream .sch-sym-body{stroke:oklch(0.75 0.17 25)}

/* =========== LABELS (LOD via #schGraph[data-zoom]) =========== */
.sch-label{font-family:var(--mono);font-size:11px;font-weight:600;fill:var(--text);text-anchor:middle;pointer-events:none;paint-order:stroke;stroke:var(--bg);stroke-width:3.5px}
.sch-label-rail{fill:oklch(0.88 0.15 155)}
.sch-label-comp.lvl-4{font-size:11.5px}
.sch-label-comp.lvl-3{font-size:10.5px}
.sch-label-comp.lvl-2{font-size:9.5px}
.sch-label-comp.lvl-1{font-size:8.5px;font-weight:500;opacity:.7}
.sch-label-comp.lvl-0{font-size:8px;font-weight:500;opacity:.55}
.sch-sub{font-family:var(--mono);font-size:9.5px;fill:var(--text-3);text-anchor:middle;pointer-events:none;paint-order:stroke;stroke:var(--bg);stroke-width:3px}

/* Hide small labels at low zoom */
#schGraph[data-zoom="low"] .sch-label-comp.lvl-0,
#schGraph[data-zoom="low"] .sch-label-comp.lvl-1,
#schGraph[data-zoom="low"] .sch-label-comp.lvl-2,
#schGraph[data-zoom="low"] .sch-sub-comp,
#schGraph[data-zoom="low"] .sch-pin-label{display:none}
#schGraph[data-zoom="mid"] .sch-label-comp.lvl-0,
#schGraph[data-zoom="mid"] .sch-label-comp.lvl-1,
#schGraph[data-zoom="mid"] .sch-pin-label{display:none}

/* =========== PINS =========== */
.sch-pin-dot{fill:oklch(0.78 0.15 155);stroke:var(--bg);stroke-width:.8}
.sch-pin-lead{stroke:oklch(0.78 0.15 155);stroke-width:1;stroke-linecap:round;opacity:.75}
.sch-pin.role-power_in .sch-pin-dot{fill:oklch(0.78 0.15 155)}
.sch-pin.role-power_in .sch-pin-lead{stroke:oklch(0.78 0.15 155)}
.sch-pin.role-power_out .sch-pin-dot,
.sch-pin.role-switch_node .sch-pin-dot{fill:oklch(0.78 0.15 155)}
.sch-pin.role-ground .sch-pin-dot{fill:var(--text-3);stroke:var(--text-3)}
.sch-pin.role-ground .sch-pin-lead{stroke:var(--text-3);opacity:.55}
.sch-pin.role-enable_in .sch-pin-dot,
.sch-pin.role-enable_out .sch-pin-dot{fill:oklch(0.82 0.16 75)}
.sch-pin.role-enable_in .sch-pin-lead,
.sch-pin.role-enable_out .sch-pin-lead{stroke:oklch(0.82 0.16 75)}
.sch-pin.role-reset_in .sch-pin-dot,
.sch-pin.role-reset_out .sch-pin-dot,
.sch-pin.role-power_good_out .sch-pin-dot{fill:oklch(0.78 0.14 295)}
.sch-pin.role-signal_in .sch-pin-dot,
.sch-pin.role-signal_out .sch-pin-dot{fill:var(--text-3)}
.sch-pin-label{font-family:var(--mono);font-size:7.5px;fill:var(--text-3);pointer-events:none;paint-order:stroke;stroke:var(--bg);stroke-width:2px}
.sch-pin-hidden{font-family:var(--mono);font-size:8px;fill:var(--text-3);pointer-events:none;font-weight:500}

/* =========== FOCUS STATE =========== */
#schGraph.has-focus .sch-node:not(.focus):not(.neighbor):not(.downstream):not(.upstream){opacity:.10}
#schGraph.has-focus .sch-node.focus .sch-shape{filter:drop-shadow(0 0 14px rgba(52,211,153,.8));stroke-width:2.8px}
#schGraph.has-focus .sch-node.focus.sch-node-component .sch-shape{filter:drop-shadow(0 0 14px rgba(56,189,248,.85))}
#schGraph.has-focus .sch-node.neighbor .sch-shape{stroke-width:2px;filter:brightness(1.15)}

/* Kill-switch cascade — downstream nodes (those that die if focus dies) */
#schGraph.has-focus .sch-node.downstream .sch-shape{stroke:oklch(0.72 0.17 25);stroke-width:1.8px;filter:drop-shadow(0 0 6px rgba(236,100,75,.5))}
#schGraph.has-focus .sch-node.downstream .sch-label{fill:oklch(0.82 0.15 25)}
#schGraph.has-focus .sch-link.active-link{stroke-opacity:.95;stroke-width:2.2}

/* Upstream chain — the power feeding this node */
#schGraph.has-focus .sch-node.upstream .sch-shape{stroke:oklch(0.80 0.14 220);stroke-width:1.6px;filter:drop-shadow(0 0 4px rgba(56,189,248,.4))}

/* Role badges in inspector */
.sch-role-badge{padding:2px 8px;border-radius:4px;font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.3px}
.sch-role-badge.role-source{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid rgba(56,189,248,.35)}
.sch-role-badge.role-consumer{background:rgba(52,211,153,.12);color:var(--emerald);border:1px solid rgba(52,211,153,.3)}
.sch-role-badge.role-decoupling{background:rgba(192,132,252,.12);color:var(--violet);border:1px solid rgba(192,132,252,.3)}

.sch-type-badge.rail{background:rgba(52,211,153,.12);color:var(--emerald);border-color:rgba(52,211,153,.3)}
.sch-type-badge.source,
.sch-type-badge.consumer{background:rgba(56,189,248,.12);color:var(--cyan);border-color:rgba(56,189,248,.3)}
.sch-type-badge.decoupling{background:rgba(192,132,252,.12);color:var(--violet);border-color:rgba(192,132,252,.3)}
.sch-type-badge.phase{background:rgba(245,158,11,.12);color:var(--amber);border-color:rgba(245,158,11,.3)}

.sch-chips .chip.cyan{color:var(--cyan);border-color:rgba(56,189,248,.3);background:rgba(56,189,248,.06)}
.sch-chips .chip.violet{color:var(--violet);border-color:rgba(192,132,252,.3);background:rgba(192,132,252,.06)}
.sch-chips .chip.amber{color:var(--amber);border-color:rgba(245,158,11,.3);background:rgba(245,158,11,.06)}
.sch-chips .chip.clickable{cursor:pointer;transition:all .12s}
.sch-chips .chip.clickable:hover{filter:brightness(1.3);transform:translateY(-1px)}

/* =========== BOOT TIMELINE (bottom strip) =========== */
.sch-boot-timeline{position:absolute;left:0;right:0;bottom:0;height:148px;background:linear-gradient(0deg,rgba(10,17,32,.98),rgba(10,17,32,.92));border-top:1px solid var(--border);padding:8px 12px 10px;z-index:4;overflow:hidden}
.sch-boot-timeline.hidden{display:none}
.sch-boot-grid{display:grid;gap:8px;height:calc(100% - 22px)}
.sch-boot-col{position:relative;background:rgba(20,32,48,.55);border:1px solid var(--border);border-radius:6px;padding:6px 8px;display:flex;flex-direction:column;gap:3px;overflow:hidden;cursor:pointer;transition:all .15s}
.sch-boot-col:hover{border-color:rgba(245,158,11,.4);background:rgba(30,42,60,.7)}
.sch-boot-col.active{border-color:var(--amber);background:rgba(245,158,11,.08);box-shadow:0 0 0 1px rgba(245,158,11,.3) inset}
.sch-boot-head{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:.4px;min-width:0;flex-wrap:nowrap}
.sch-boot-phase{padding:2px 7px;background:rgba(245,158,11,.15);color:var(--amber);border:1px solid rgba(245,158,11,.3);border-radius:4px;font-weight:700;flex-shrink:0}
.sch-boot-name{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}
.sch-boot-rails,.sch-boot-comps{display:flex;flex-wrap:wrap;gap:3px;max-height:40px;overflow:hidden}
.sch-boot-rails .chip,.sch-boot-comps .chip{padding:2px 5px;border-radius:3px;font-size:9.5px;cursor:pointer}
.sch-boot-more{font-family:var(--mono);font-size:9px;color:var(--text-3);padding:2px 5px}

/* Single-line rows inside a phase card (compact mode) */
.sch-boot-line{display:flex;align-items:center;gap:4px;overflow:hidden;min-width:0;height:18px}
.sch-boot-line-label{flex:0 0 10px;font-family:var(--mono);font-size:9.5px;color:var(--text-3);font-weight:700;letter-spacing:.3px}
.sch-boot-line .chip{flex-shrink:0;padding:1px 5px;border-radius:2px;font-size:9.5px;cursor:pointer;line-height:1.3}
.sch-boot-line .chip:hover{filter:brightness(1.25)}
.sch-boot-more{flex-shrink:0;font-family:var(--mono);font-size:9px;color:var(--text-3);padding:1px 4px}

/* Single-line SPOF row */
.sch-boot-spof{display:flex;align-items:center;gap:5px;font-family:var(--mono);font-size:9.5px;color:var(--text-2);padding:2px 4px;border-radius:3px;background:rgba(10,17,32,.4);height:18px;overflow:hidden;min-width:0}
.sch-boot-spof.crit-hi{background:rgba(236,100,75,.10);color:oklch(0.85 0.14 25)}
.sch-boot-spof.crit-mid{background:rgba(245,158,11,.08);color:var(--amber)}
.sch-boot-spof-icon{font-weight:700;flex-shrink:0}
.sch-boot-spof-label{flex-shrink:0;color:var(--text-3);letter-spacing:.3px;text-transform:uppercase;font-size:8.5px}
.sch-boot-spof-ref{flex-shrink:0;color:var(--cyan);cursor:pointer;text-decoration:underline dotted transparent;transition:text-decoration-color .15s}
.sch-boot-spof-ref:hover{text-decoration-color:var(--cyan)}
.sch-boot-spof-pct{flex-shrink:0;margin-left:auto;font-weight:700;color:var(--text)}
.sch-boot-empty{color:var(--text-3);text-align:center;padding:30px;font-size:12px}

/* Boot source badge + reanalyze button */
.sch-boot-headbar{display:flex;align-items:center;gap:12px;padding:0 4px 6px;font-size:10.5px;font-family:var(--mono)}
.sch-boot-src{padding:3px 10px;border-radius:4px;letter-spacing:.4px;text-transform:uppercase;font-weight:600}
.sch-boot-src.analyzer{background:rgba(56,189,248,.14);color:var(--cyan);border:1px solid rgba(56,189,248,.35)}
.sch-boot-src.compiler{background:rgba(245,158,11,.10);color:var(--amber);border:1px solid rgba(245,158,11,.3)}
.sch-boot-seq,.sch-boot-conf{color:var(--text-3)}
.sch-boot-seq .mono,.sch-boot-conf .mono{color:var(--text);font-weight:600}
.sch-reanalyze{margin-left:auto;padding:4px 12px;border-radius:4px;background:rgba(56,189,248,.08);color:var(--cyan);border:1px solid rgba(56,189,248,.3);font-family:var(--mono);font-size:10px;letter-spacing:.3px;text-transform:uppercase;cursor:pointer;transition:all .15s}
.sch-reanalyze:hover{background:rgba(56,189,248,.14)}
.sch-reanalyze:disabled{opacity:.5;cursor:wait}

/* Phase criticality — highlights the phase whose gate has the biggest blast radius */
.sch-boot-col.crit-hi{border-color:oklch(0.7 0.17 25)!important;box-shadow:0 0 0 1px rgba(236,100,75,.35) inset}
.sch-boot-col.crit-mid{border-color:oklch(0.75 0.16 75)!important;box-shadow:0 0 0 1px rgba(245,158,11,.3) inset}
.sch-boot-crit{display:flex;flex-direction:column;gap:3px;padding:3px 0 2px}
.sch-boot-crit-bar{height:4px;background:var(--bg-deep);border:1px solid var(--border);border-radius:2px;overflow:hidden}
.sch-boot-crit-fill{height:100%;background:var(--emerald);transition:width .3s}
.sch-boot-crit-fill.crit-mid{background:var(--amber)}
.sch-boot-crit-fill.crit-hi{background:oklch(0.75 0.17 25)}
.sch-boot-crit-lbl{font-family:var(--mono);font-size:9.5px;color:var(--text-2);display:flex;align-items:center;gap:5px;letter-spacing:.2px}
.sch-boot-crit-lbl .mono{color:var(--cyan)}
.sch-boot-crit-lbl .mono.clickable{cursor:pointer;text-decoration:underline dotted transparent;transition:text-decoration-color .15s}
.sch-boot-crit-lbl .mono.clickable:hover{text-decoration-color:var(--cyan)}
.sch-boot-crit-lbl strong{color:var(--text);font-weight:700}
.sch-boot-crit-icon{font-weight:800;color:var(--text-3)}
.sch-boot-col.crit-hi .sch-boot-crit-icon{color:oklch(0.82 0.17 25)}
.sch-boot-col.crit-mid .sch-boot-crit-icon{color:var(--amber)}

/* Per-phase kind + confidence badges */
.sch-boot-kind{flex-shrink:0;padding:1px 6px;border-radius:3px;font-size:9px;letter-spacing:.3px;text-transform:uppercase;font-weight:600}
.sch-boot-kind.kindalwayson{background:rgba(52,211,153,.15);color:var(--emerald);border:1px solid rgba(52,211,153,.3)}
.sch-boot-kind.kindsequenced{background:rgba(56,189,248,.15);color:var(--cyan);border:1px solid rgba(56,189,248,.3)}
.sch-boot-kind.kindondemand{background:rgba(192,132,252,.15);color:var(--violet);border:1px solid rgba(192,132,252,.3)}
.sch-boot-phase-conf{flex-shrink:0;font-family:var(--mono);font-size:9px;color:var(--text-3);padding:1px 4px;background:rgba(10,17,32,.5);border-radius:3px}

/* Evidence list (in inspector phase view) */
.sch-evidence{margin:0;padding-left:18px;font-size:11.5px;color:var(--text-2);line-height:1.45}
.sch-evidence li{margin-bottom:4px}
.sch-evidence li::marker{color:var(--cyan)}

/* Make room at the bottom of the canvas for the timeline (must match
   .sch-boot-timeline height). If you bump the timeline's `height`, bump
   the `bottom` here too. */
.sch-canvas{bottom:148px}
body.no-metabar .sch-canvas{bottom:148px}

/* Shrink schematic root when the diagnostic chat panel is docked right,
   matching how `.canvas`, `.home`, `.stub` do it (see styles/llm.css). */
body.llm-open .sch-root{right:420px}

/* Missing / stub component (referenced in rails but absent from components map) */
.sch-node.missing .sch-shape{stroke-dasharray:2 2;opacity:.5}

.sch-node:hover .sch-shape{filter:brightness(1.25)}

/* =========== STATS + CONTROLS BAR =========== */
/* Top-left zone — stats only. Max-width coupe bien avant le centre où
   se trouve le switch Graphe/PDF (sch-surface-toggle), donc la stats
   bar ne déborde jamais dessus. */
.sch-statsbar{position:absolute;top:16px;left:16px;display:flex;gap:8px;z-index:5;flex-wrap:wrap;max-width:calc(50% - 140px)}
.sch-stat{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:20px;background:rgba(10,17,32,.92);border:1px solid var(--border);backdrop-filter:blur(6px);font-family:var(--mono);font-size:10.5px;letter-spacing:.3px;color:var(--text-2)}
.sch-stat .k{color:var(--text-3);text-transform:uppercase}
.sch-stat .v{color:var(--text);font-weight:600}
.sch-stat-total{color:var(--text-3);font-weight:400;margin-left:1px;font-size:9.5px}
.sch-stat-pill{padding:5px 10px;border-radius:20px;background:rgba(52,211,153,.1);color:var(--emerald);border:1px solid rgba(52,211,153,.3);font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.4px;display:none}
.sch-stat-pill.on{display:inline-flex}
.sch-stat-pill.warn{background:rgba(245,158,11,.1);color:var(--amber);border-color:rgba(245,158,11,.3)}
/* Power-tree mode — horizontal bus lines */
.sch-pt-busline{stroke:rgba(52,211,153,.28);stroke-width:1;stroke-dasharray:6 4}
.sch-pt-band-label{font-family:var(--mono);font-size:10px;fill:var(--text-3);letter-spacing:.5px;text-transform:uppercase;font-weight:700;pointer-events:none}
.sch-pt-orphan-divider{stroke:rgba(110,125,150,.45);stroke-width:1;stroke-dasharray:3 6}
.sch-pt-orphan-label{font-family:var(--mono);font-size:10.5px;fill:var(--text-3);letter-spacing:.5px;text-transform:uppercase;font-weight:700;pointer-events:none}

.sch-filter{position:absolute;top:16px;right:16px;z-index:5;display:flex;align-items:center;gap:8px;background:rgba(10,17,32,.92);border:1px solid var(--border);border-radius:20px;backdrop-filter:blur(6px);padding:4px 10px}
.sch-filter input{background:transparent;border:0;color:var(--text);font-family:var(--mono);font-size:11px;padding:4px 6px;min-width:130px;outline:none}
.sch-filter input::placeholder{color:var(--text-3)}
.sch-filter-status{font-family:var(--mono);font-size:10px;color:var(--text-3);min-width:70px;text-align:right}

/* =========== ZOOM CONTROLS =========== */
/* `bottom:156px` lifts the bar clear of the 148px boot timeline so it
   never sits on top of the boot-sequence chips. */
.sch-zoom{position:absolute;right:16px;bottom:156px;display:flex;flex-direction:column;gap:6px;background:rgba(20,32,48,.85);border:1px solid var(--border);backdrop-filter:blur(8px);border-radius:8px;padding:6px;z-index:5}
.sch-zoom-btn{width:34px;height:34px;border-radius:5px;background:transparent;border:0;color:var(--text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s}
.sch-zoom-btn:hover{background:var(--panel-2);color:var(--text)}
.sch-zoom-sep{height:1px;background:var(--border);margin:2px 4px}
.sch-zoom-label{font-family:var(--mono);font-size:10px;color:var(--text-3);text-align:center;padding:2px 0}

/* =========== INSPECTOR =========== */
.sch-inspector{position:fixed;top:104px;right:16px;bottom:40px;width:390px;background:linear-gradient(180deg,rgba(20,32,48,.96),rgba(15,26,46,.96));border:1px solid var(--border);border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5),0 0 0 1px rgba(52,211,153,.05);backdrop-filter:blur(14px);z-index:30;display:flex;flex-direction:column;transform:translateX(calc(100% + 24px));transition:transform .28s cubic-bezier(.2,.8,.2,1);overflow:hidden}
.sch-inspector.open{transform:translateX(0)}
.sch-insp-head{padding:14px 16px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:6px;position:relative}
.sch-insp-head h2{margin:0;font-size:20px;font-weight:600;letter-spacing:-.2px;font-family:var(--mono);color:var(--text)}
.sch-insp-head .sub{font-family:var(--mono);font-size:11px;color:var(--text-3)}
.sch-type-badge{position:absolute;top:12px;right:14px;padding:3px 8px;border-radius:10px;font-size:10px;font-family:var(--mono);letter-spacing:.4px;text-transform:uppercase;background:rgba(52,211,153,.12);color:var(--emerald);border:1px solid rgba(52,211,153,.3)}
.sch-type-badge.rail{background:rgba(52,211,153,.12);color:var(--emerald);border-color:rgba(52,211,153,.3)}
.sch-type-badge.component{background:rgba(56,189,248,.12);color:var(--cyan);border-color:rgba(56,189,248,.3)}
.sch-insp-close{position:absolute;top:10px;left:10px;background:transparent;border:0;color:var(--text-3);cursor:pointer;width:26px;height:26px;border-radius:4px;display:flex;align-items:center;justify-content:center}
.sch-insp-close:hover{background:var(--panel-2);color:var(--text)}
.sch-insp-body{flex:1;overflow:auto;padding:14px 16px 20px}
.sch-insp-body::-webkit-scrollbar{width:6px}
.sch-insp-body::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.sch-insp-section{padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border-soft)}
.sch-insp-section:last-child{border-bottom:0;margin-bottom:0}
.sch-insp-section h3{margin:0 0 8px 0;font-family:var(--mono);font-size:10px;color:var(--text-3);font-weight:500;letter-spacing:.5px;text-transform:uppercase}
.sch-meta-grid{display:grid;grid-template-columns:95px 1fr;gap:6px 10px;font-size:12px}
.sch-meta-grid dt{color:var(--text-3);font-family:var(--mono);font-size:10.5px}
.sch-meta-grid dd{margin:0;color:var(--text)}
.sch-meta-grid dd .mono{font-family:var(--mono);color:var(--cyan)}
.sch-meta-grid dd .muted{color:var(--text-3)}
.sch-meta-grid dd .warn{color:var(--amber);font-family:var(--mono)}
.sch-chips{display:flex;flex-wrap:wrap;gap:5px}
.sch-chips .chip{padding:3px 8px;border-radius:4px;background:var(--bg-deep);border:1px solid var(--border);font-family:var(--mono);font-size:10.5px;color:var(--text-2)}
.sch-chips .chip.emerald{color:var(--emerald);border-color:rgba(52,211,153,.3);background:rgba(52,211,153,.06)}
.muted{color:var(--text-3);font-size:11px}

.sch-pin-table{width:100%;border-collapse:collapse;font-size:11px}
.sch-pin-table th{text-align:left;padding:5px 6px;border-bottom:1px solid var(--border);font-weight:500;color:var(--text-3);font-family:var(--mono);font-size:9.5px;text-transform:uppercase;letter-spacing:.3px}
.sch-pin-table td{padding:4px 6px;border-bottom:1px solid var(--border-soft);vertical-align:top}
.sch-pin-table tr:last-child td{border-bottom:0}
.sch-pin-table td.mono{color:var(--text-2)}
.sch-pin-table td .chip{padding:2px 6px;font-size:10px}
.sch-pin-table td.pin-role{color:var(--text-3);font-size:10px}

/* =========== EMPTY STATE =========== */
.sch-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:3}
.sch-empty.hidden{display:none}
.sch-empty-card{max-width:560px;padding:26px 30px;background:rgba(20,32,48,.94);border:1px solid var(--border);border-radius:12px;backdrop-filter:blur(12px);text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.sch-empty-card .glyph{width:44px;height:44px;margin:0 auto 10px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 30%,rgba(52,211,153,.35),transparent 60%);border:1px solid rgba(52,211,153,.25);color:var(--emerald)}
.sch-empty-card h3{margin:6px 0 6px;font-size:15px;font-weight:600;color:var(--text)}
.sch-empty-card p{margin:0 0 12px;font-size:12.5px;color:var(--text-2);line-height:1.55}
.sch-empty-card code{display:block;font-family:var(--mono);font-size:11px;color:var(--emerald);padding:10px 12px;background:var(--bg-deep);border:1px solid var(--border);border-radius:6px;text-align:left;overflow-x:auto;white-space:pre;margin-top:4px}

/* =========== RAIL SIDEBAR (mode=railfocus) =========== */
/* Hidden by default — shown only when body.sch-mode-railfocus is active,
   set by the JS mode toggle. Sits flush-left under the statsbar and runs
   down to just above the boot timeline. */
/* Rail sidebar — occupe toute la colonne gauche en mode Focus-rail.
   La barre va de top à bottom de la section schématique ; les overlays
   flottants (statsbar / surface-toggle) sont décalés vers la droite en
   mode railfocus pour ne pas couvrir la sidebar. */
.sch-railbar{position:absolute;top:0;left:0;bottom:0;width:260px;background:linear-gradient(180deg,rgba(15,24,42,.98),rgba(12,19,36,.98));border-right:1px solid var(--border);display:none;flex-direction:column;z-index:4;backdrop-filter:blur(6px)}
body.sch-mode-railfocus .sch-railbar{display:flex}
body.sch-mode-railfocus .sch-canvas{left:260px}
body.sch-mode-railfocus .sch-boot-timeline{left:260px}
/* En mode Focus-rail, la sidebar occupe les 260 premiers pixels — on
   décale les overlays flottants pour qu'ils vivent dans la zone visible
   (à droite de la sidebar) sans la couvrir. Le +130px correspond à la
   moitié de la largeur de la sidebar, ce qui re-centre le switch au
   milieu de la zone visible (entre 260 et la droite). */
body.sch-mode-railfocus .sch-statsbar{left:276px;max-width:calc(50% - 230px)}
body.sch-mode-railfocus .sch-surface-toggle{left:calc(50% + 130px)}

.sch-railbar-head{display:flex;align-items:baseline;justify-content:space-between;padding:18px 16px 12px;border-bottom:1px solid var(--border)}
.sch-railbar-title{font-family:var(--mono);font-size:11.5px;letter-spacing:.6px;text-transform:uppercase;color:var(--text-2);font-weight:700}
.sch-railbar-count{font-family:var(--mono);font-size:10.5px;color:var(--text-3)}

/* Search input inside the rail sidebar — filtre le nom des rails.
   Même esthétique que .sch-filter mais intégré à la sidebar. */
.sch-railbar-search{display:flex;align-items:center;gap:6px;padding:8px 12px;border-bottom:1px solid var(--border-soft);background:rgba(10,17,32,.45);color:var(--text-3)}
.sch-railbar-search input{flex:1;min-width:0;background:transparent;border:0;color:var(--text);font-family:var(--mono);font-size:11px;padding:3px 4px;outline:none}
.sch-railbar-search input::placeholder{color:var(--text-3)}
.sch-railbar-search:focus-within{color:var(--cyan);background:rgba(56,189,248,.05)}

.sch-railbar-list{flex:1;overflow-y:auto;overflow-x:hidden;padding:6px 0}
.sch-railbar-list::-webkit-scrollbar{width:6px}
.sch-railbar-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}

/* Voltage-class group header inside the list */
/* Header sticky pour chaque bucket de tension — ≥12V, 5-11V, 3V3, 1V8-2V5…
   Reste visible quand l'utilisateur scrolle dans la liste. */
.sch-rail-group{position:sticky;top:0;z-index:2;padding:10px 16px 4px;font-family:var(--mono);font-size:10px;color:var(--text-3);letter-spacing:.6px;text-transform:uppercase;font-weight:700;background:linear-gradient(180deg,rgba(15,24,42,1) 60%,rgba(15,24,42,0));margin-top:6px}
.sch-rail-group:first-child{margin-top:0}

/* Rail item row — compact, 2 lines */
/* Rail item — plus d'air + active state en cyan (component color) pour
   bien contraster avec le SPOF badge qui reste en rouge (semantic alert). */
.sch-rail-item{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:3px 10px;padding:10px 16px;cursor:pointer;border-left:2px solid transparent;transition:background .12s,border-color .12s,box-shadow .12s;margin:0 6px;border-radius:4px}
.sch-rail-item:hover{background:rgba(56,189,248,.06);border-left-color:rgba(56,189,248,.35)}
.sch-rail-item.active{background:rgba(56,189,248,.12);border-left-color:var(--cyan);box-shadow:inset 0 0 0 1px rgba(56,189,248,.25)}
.sch-rail-item.active .sch-rail-name{color:var(--cyan)}
.sch-rail-item.active .sch-rail-voltage{color:var(--cyan)}
.sch-rail-item.spof{border-left-color:oklch(0.75 0.17 25)}
.sch-rail-item.spof.active{background:rgba(236,100,75,.10);border-left-color:oklch(0.78 0.17 25);box-shadow:inset 0 0 0 1px rgba(236,100,75,.3)}
/* Hidden state used by the local search filter — on garde le node dans
   le DOM (pour preserve l'état active) mais on le retire du flow. */
.sch-rail-item.sch-hidden{display:none}
.sch-rail-group.sch-hidden{display:none}

.sch-rail-name{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--text);grid-column:1;grid-row:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.sch-rail-voltage{font-family:var(--mono);font-size:11px;color:var(--emerald);grid-column:2;grid-row:1;font-weight:700;flex-shrink:0}
.sch-rail-meta{grid-column:1 / span 2;grid-row:2;display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:9.5px;color:var(--text-3);min-width:0;overflow:hidden}
.sch-rail-meta .sch-rail-source{color:var(--cyan);font-weight:600;flex-shrink:0}
.sch-rail-meta .sch-rail-source.external{color:var(--text-3);font-style:italic}
.sch-rail-meta .sch-rail-consumers{color:var(--text-3);flex-shrink:0}
.sch-rail-meta .sch-rail-spof{margin-left:auto;padding:1px 5px;border-radius:3px;font-weight:700;font-size:9px;background:rgba(236,100,75,.14);color:oklch(0.82 0.15 25);border:1px solid rgba(236,100,75,.3);flex-shrink:0}
.sch-rail-meta .sch-rail-phase{padding:1px 5px;border-radius:3px;background:rgba(245,158,11,.10);color:var(--amber);border:1px solid rgba(245,158,11,.25);flex-shrink:0;font-size:9px;font-weight:600}

/* Search match highlight — quand le filtre est actif, le substring qui
   match est soulignés en cyan pour confirmer visuellement le critère. */
.sch-rail-name mark{background:transparent;color:var(--cyan);padding:0;font-weight:800;text-decoration:underline;text-decoration-color:rgba(56,189,248,.5);text-underline-offset:2px}

/* =========== RAIL FOCUS LAYOUT (SVG) =========== */
/* Dashed zone bands — upstream / source / rail / consumers.
   Subtle, labelled, keeps the eye zoned without shouting. */
.sch-rf-zoneband{fill:rgba(255,255,255,.012);stroke:rgba(255,255,255,.06);stroke-width:1;stroke-dasharray:6 6}
.sch-rf-zonelabel{font-family:var(--mono);font-size:10px;fill:var(--text-3);letter-spacing:.5px;text-transform:uppercase;font-weight:600;pointer-events:none}
.sch-rf-busline{stroke:var(--emerald);stroke-width:1.5;opacity:.45}
.sch-rf-upstream-note{font-family:var(--mono);font-size:11px;fill:var(--text-3);font-style:italic;pointer-events:none}

/* Empty canvas — shown in railfocus mode before a rail is picked */
.sch-rf-empty{font-family:var(--mono);font-size:13px;fill:var(--text-3);text-anchor:middle;pointer-events:none;letter-spacing:.3px}
.sch-rf-empty-hint{font-family:var(--mono);font-size:10.5px;fill:var(--text-3);text-anchor:middle;pointer-events:none;opacity:.7}
.sch-empty-hint.hidden{display:none}

/* =========== BEHAVIORAL SIMULATOR — sim-* state classes =========== */
/* Scoped to the schematic section so they don't leak into other views. */
#schematicSection .sim-off       { opacity: .18; filter: saturate(.3); transition: opacity .2s, filter .2s; }
#schematicSection .sim-rising    { stroke: var(--amber); animation: sim-pulse 1.2s ease-in-out infinite; }
#schematicSection .sim-stable    { /* default appearance — semantic color per node type */ }
#schematicSection .sim-dead      { stroke: oklch(62% 0.20 25); stroke-width: 2.5px; stroke-dasharray: 3 2; }
#schematicSection .sim-signal-high { stroke: var(--emerald); }
#schematicSection .sim-signal-low  { stroke: var(--text-3); stroke-dasharray: 2 3; }

@keyframes sim-pulse {
  0%, 100% { stroke-opacity: 1; }
  50%      { stroke-opacity: .45; }
}

/* =========== SCRUBBER CHROME =========== */
/* Glass panel consistent with the rest of the UI. Positioned absolute
   inside .sch-root so it floats above the canvas. */
.sim-scrubber {
  position: absolute;
  left: 50%;
  bottom: 156px;   /* sits just above .sch-boot-timeline (148px + 8px gap) */
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--panel) 92%, transparent);
  backdrop-filter: blur(10px);
  border-radius: 6px;
  z-index: 20;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: var(--text-2);
}
.sim-scrubber button {
  all: unset;
  padding: 3px 8px;
  cursor: pointer;
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  color: var(--text-2);
  min-width: 18px;
  text-align: center;
}
.sim-scrubber button:hover {
  color: var(--text);
  background: var(--panel-2);
}
.sim-scrubber input[type=range] {
  width: 160px;
  accent-color: var(--cyan);
}
.sim-scrubber .sim-phase-label {
  color: var(--text);
  width: 280px;
  flex: 0 0 280px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sim-scrubber .sim-blocked-overlay {
  padding: 2px 8px;
  border-radius: 2px;
  background: color-mix(in oklch, var(--amber) 18%, transparent);
  color: var(--amber);
  border: 1px solid var(--amber);
  width: 300px;
  flex: 0 0 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  visibility: hidden;
}
.sim-scrubber .sim-blocked-overlay:not([hidden]) { visibility: visible; }
.sim-scrubber .sim-blocked-overlay[hidden] { display: block; }
.sim-scrubber[hidden] { display: none; }

/* Fault-injection buttons — appear at the bottom of the component inspector. */
.sim-inspector-action {
  all: unset;
  display: block;
  width: calc(100% - 20px);
  margin: 10px 10px 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-align: center;
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--panel);
  transition: color .15s, background .15s, border-color .15s;
}
.sim-inspector-action:hover {
  color: var(--text);
  background: var(--panel-2);
}
.sim-inspector-action--danger {
  color: var(--amber);
  border-color: color-mix(in oklch, var(--amber) 60%, transparent);
}
.sim-inspector-action--danger:hover {
  color: var(--amber);
  background: color-mix(in oklch, var(--amber) 10%, transparent);
  border-color: var(--amber);
}

/* ---- Cascade-dead warning glyph ---------------------------------------- */
/* Shown on components/rails downstream of a killed upstream (indirect
   victims). Distinct from sim-dead (directly killed = red dashed) so
   the tech can tell root cause vs collateral damage at a glance.       */
.sch-cascade-warn {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 14px;
  font-weight: 700;
  fill: var(--amber);
  paint-order: stroke;
  stroke: var(--bg);
  stroke-width: 3px;
  display: none;
  pointer-events: none;
}
.sim-cascade .sch-cascade-warn {
  display: block;
  animation: cascade-flicker 1.8s ease-in-out infinite;
}
@keyframes cascade-flicker {
  0%, 100% { opacity: 1; }
  50%       { opacity: .55; }
}
/* Subtle amber tint on the shape so cascade nodes stand apart from the
   "just not yet booted" sim-off nodes. */
#schematicSection .sim-cascade .sch-shape {
  stroke: color-mix(in oklch, var(--amber) 70%, transparent);
  stroke-width: 2px;
  filter: drop-shadow(0 0 4px color-mix(in oklch, var(--amber) 40%, transparent));
}
/* When a node is both sim-off AND sim-cascade, raise opacity so the
   warning glyph is readable against the faded shape. */
#schematicSection .sim-off.sim-cascade {
  opacity: .55;
  filter: saturate(.6);
}

/* ---- Scrubber open / close toggle --------------------------------------- */
/* Close button lives on the right edge of the scrubber itself. */
.sim-scrubber .sim-scrubber-close {
  margin-left: 6px;
  font-size: 13px;
  line-height: 1;
  padding: 2px 6px;
  color: var(--text-3);
}
.sim-scrubber .sim-scrubber-close:hover {
  color: var(--amber);
  border-color: var(--amber);
}
/* Re-open chip replaces the scrubber when it's hidden — same corner, same
   glass treatment, minimal surface so it stays out of the way. */
.sim-scrubber-toggle {
  all: unset;
  position: absolute;
  left: 50%;
  bottom: 156px;
  transform: translateX(-50%);
  z-index: 20;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--panel) 92%, transparent);
  backdrop-filter: blur(10px);
  border-radius: 6px;
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color .15s, background .15s, border-color .15s;
}
.sim-scrubber-toggle:hover {
  color: var(--text);
  background: var(--panel-2);
  border-color: var(--border);
}
.sim-scrubber-toggle[hidden] { display: none; }

/* ------------------------------------------------------------------ *
 * Reverse-diagnostic: contextual mode picker + metric input row      *
 * ------------------------------------------------------------------ */
.sim-obs-row {
  display: flex; align-items: center; gap: 8px;
  margin: 12px 10px 0;
  padding: 6px 0;
  border-top: 1px solid var(--border-soft);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .4px;
}
.sim-obs-row .sim-obs-label { flex: 0 0 80px; }

/* Contextual mode picker — one button per applicable mode. */
.sim-mode-picker {
  display: flex; gap: 6px; flex-wrap: wrap;
  font-family: var(--mono);
}
.sim-mode-picker button {
  all: unset; cursor: pointer;
  padding: 3px 8px;
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  color: var(--text-3);
  font-size: 10.5px;
  text-transform: uppercase; letter-spacing: .4px;
  transition: color .15s, border-color .15s, background .15s;
}
.sim-mode-picker button:hover { color: var(--text); }
.sim-mode-picker button.active[data-mode="dead"]       { color: var(--amber);   border-color: var(--amber);   background: color-mix(in oklch, var(--amber) 12%, transparent); }
.sim-mode-picker button.active[data-mode="alive"]      { color: var(--emerald); border-color: var(--emerald); background: color-mix(in oklch, var(--emerald) 12%, transparent); }
.sim-mode-picker button.active[data-mode="anomalous"]  { color: var(--violet);  border-color: var(--violet);  background: color-mix(in oklch, var(--violet) 12%, transparent); }
.sim-mode-picker button.active[data-mode="hot"]        { color: var(--amber);   border-color: var(--amber);   background: color-mix(in oklch, var(--amber) 20%, transparent); box-shadow: 0 0 0 1px color-mix(in oklch, var(--amber) 40%, transparent); }
.sim-mode-picker button.active[data-mode="shorted"]    { color: var(--amber);   border-color: var(--amber);   background: color-mix(in oklch, var(--amber) 20%, transparent); }
.sim-mode-picker button.active[data-mode="unknown"]    { color: var(--text-2);  border-color: var(--text-3); }

/* Phase 4 — passive mode picker tints. open (cyan) + short (amber). */
.sim-mode-picker[data-kind^="passive"] button[data-mode="open"] {
  color: var(--cyan);
  border-color: color-mix(in oklch, var(--cyan) 40%, transparent);
}
.sim-mode-picker[data-kind^="passive"] button[data-mode="short"] {
  color: var(--amber);
  border-color: color-mix(in oklch, var(--amber) 40%, transparent);
}
.sim-mode-picker[data-kind^="passive"] button[data-mode="open"].active {
  background: color-mix(in oklch, var(--cyan) 30%, var(--panel-2));
}
.sim-mode-picker[data-kind^="passive"] button[data-mode="short"].active {
  background: color-mix(in oklch, var(--amber) 30%, var(--panel-2));
}

/* Metric input row — numeric entry with unit select + record button. */
.sim-metric-row {
  display: flex; align-items: center; gap: 8px;
  margin: 8px 10px 0;
  padding: 4px 0;
  font-family: var(--mono);
  font-size: 10.5px;
}
.sim-metric-row .sim-obs-label { flex: 0 0 80px; }
.sim-metric-input {
  width: 72px;
  padding: 3px 6px;
  background: var(--bg-2);
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
}
.sim-metric-input:focus { outline: none; border-color: var(--cyan); }
.sim-metric-unit {
  padding: 3px 6px;
  background: var(--bg-2);
  border: 1px solid var(--border-soft);
  border-radius: 3px;
  color: var(--text-2);
  font-size: 10.5px;
  font-family: var(--mono);
}
.sim-metric-nominal { flex: 1; color: var(--text-3); }
.sim-metric-record {
  all: unset; cursor: pointer;
  padding: 3px 8px;
  border: 1px solid color-mix(in oklch, var(--cyan) 60%, transparent);
  border-radius: 3px;
  color: var(--cyan);
  font-size: 10.5px;
  text-transform: uppercase; letter-spacing: .4px;
  transition: background .15s, border-color .15s;
}
.sim-metric-record:hover { background: color-mix(in oklch, var(--cyan) 12%, transparent); border-color: var(--cyan); }

/* Node badges — one per mode. */
#schematicSection .obs-dead .sch-shape       { stroke: var(--amber);   stroke-width: 2.2px; filter: drop-shadow(0 0 3px color-mix(in oklch, var(--amber)   40%, transparent)); }
#schematicSection .obs-alive .sch-shape      { stroke: var(--emerald); stroke-width: 2.2px; filter: drop-shadow(0 0 3px color-mix(in oklch, var(--emerald) 40%, transparent)); }
#schematicSection .obs-anomalous .sch-shape  { stroke: var(--violet);  stroke-width: 2.2px; filter: drop-shadow(0 0 3px color-mix(in oklch, var(--violet)  40%, transparent)); stroke-dasharray: 3 2; }
#schematicSection .obs-hot .sch-shape        { stroke: var(--amber);   stroke-width: 2.6px; filter: drop-shadow(0 0 4px color-mix(in oklch, var(--amber)   60%, transparent)); }
#schematicSection .obs-shorted .sch-shape    { stroke: var(--amber);   stroke-width: 2.6px; filter: drop-shadow(0 0 5px color-mix(in oklch, var(--amber)   60%, transparent)); stroke-dasharray: 2 2; }

/* Hypothesis chips — one style per predicted mode. */
.sim-hyp-chip--dead      { background: color-mix(in oklch, var(--amber)   14%, transparent); color: var(--amber);   border: 1px solid color-mix(in oklch, var(--amber)   40%, transparent); padding: 1px 6px; border-radius: 2px; }
.sim-hyp-chip--anomalous { background: color-mix(in oklch, var(--violet)  14%, transparent); color: var(--violet);  border: 1px solid color-mix(in oklch, var(--violet)  40%, transparent); padding: 1px 6px; border-radius: 2px; }
.sim-hyp-chip--hot       { background: color-mix(in oklch, var(--amber)   20%, transparent); color: var(--amber);   border: 1px solid color-mix(in oklch, var(--amber)   60%, transparent); padding: 1px 6px; border-radius: 2px; }
.sim-hyp-chip--shorted   { background: color-mix(in oklch, var(--amber)   20%, transparent); color: var(--amber);   border: 1px solid var(--amber); padding: 1px 6px; border-radius: 2px; }

/* ------------------------------------------------------------------ *
 * Reverse-diagnostic results panel — glass card overlay, right edge. *
 * T15: hypothesize endpoint response rendered as ranked hypothesis    *
 * cards with kill-set chips, score, FR narrative, and diff tags.     *
 * ------------------------------------------------------------------ */
.sim-hypotheses-panel {
  position: fixed;
  right: 422px;       /* left of the 390px-wide .sch-inspector (right:16px) + 16px gap */
  top: 104px;
  bottom: 40px;
  width: 380px;
  z-index: 31;        /* one above .sch-inspector (30) so the panel always draws on top */
  display: flex; flex-direction: column;
  border: 1px solid var(--border);
  background: color-mix(in oklch, var(--panel) 94%, transparent);
  backdrop-filter: blur(12px);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--mono);
}
.sim-hyp-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 11px; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .4px;
}
.sim-hyp-close {
  all: unset; cursor: pointer;
  padding: 0 6px;
  color: var(--text-3);
}
.sim-hyp-close:hover { color: var(--amber); }

.sim-hyp-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  display: flex; flex-direction: column; gap: 8px;
}
.sim-hyp-card {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.sim-hyp-card:hover {
  border-color: var(--amber);
  background: var(--panel-2);
}
.sim-hyp-card-head {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .4px;
}
.sim-hyp-rank  { color: var(--text-3); min-width: 22px; }
.sim-hyp-kills { color: var(--text); flex: 1; }
.sim-hyp-chip  {
  padding: 1px 6px; border-radius: 2px;
  background: color-mix(in oklch, var(--cyan) 14%, transparent);
  color: var(--cyan); border: 1px solid color-mix(in oklch, var(--cyan) 40%, transparent);
}
.sim-hyp-score { font-size: 10.5px; color: var(--text-3); }

.sim-hyp-narr {
  margin-top: 8px;
  font-family: Inter, sans-serif;
  font-size: 12px; color: var(--text-2);
  line-height: 1.45;
  text-transform: none; letter-spacing: 0;
}
.sim-hyp-diff {
  margin-top: 6px;
  font-size: 10.5px;
  color: var(--text-3);
  display: flex; gap: 6px; align-items: flex-start; flex-wrap: wrap;
}
.sim-hyp-diff .k { color: var(--text-3); }
.sim-hyp-tag {
  padding: 1px 5px; border-radius: 2px;
  font-family: var(--mono); font-size: 10px;
}
.sim-hyp-tag-fp { color: var(--amber);   background: color-mix(in oklch, var(--amber) 12%, transparent); }
.sim-hyp-tag-fn { color: var(--text-2);  background: color-mix(in oklch, var(--text-3) 12%, transparent); }

/* Diagnostiquer action button — cyan accent, distinct from danger/simuler. */
.sim-inspector-action--diag {
  color: var(--cyan);
  border-color: color-mix(in oklch, var(--cyan) 60%, transparent);
}
.sim-inspector-action--diag:hover {
  color: var(--cyan);
  background: color-mix(in oklch, var(--cyan) 10%, transparent);
  border-color: var(--cyan);
}

/* ============ MEASUREMENT HISTORY MINI-TIMELINE ============ */
.sim-measurement-history {
  margin: 10px 10px 0;
  padding-top: 8px;
  border-top: 1px solid var(--border-soft);
}
.sim-mh-title {
  font-family: var(--mono);
  font-size: 10px; color: var(--text-3);
  text-transform: uppercase; letter-spacing: .4px;
  margin-bottom: 4px;
}
.sim-mh-list { display: flex; flex-direction: column; gap: 4px; }
.sim-mh-row {
  display: grid;
  grid-template-columns: 62px 90px 80px 1fr;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-2);
  padding: 2px 0;
}
.sim-mh-ts   { color: var(--text-3); }
.sim-mh-val  { color: var(--text); }
.sim-mh-mode { font-size: 9.5px; text-transform: uppercase; letter-spacing: .3px; padding: 1px 5px; border-radius: 2px; border: 1px solid var(--border-soft); text-align: center; }
.sim-mh-mode--dead      { color: var(--amber);   border-color: var(--amber); }
.sim-mh-mode--alive     { color: var(--emerald); border-color: var(--emerald); }
.sim-mh-mode--anomalous { color: var(--violet);  border-color: var(--violet); }
.sim-mh-mode--hot       { color: var(--amber);   border-color: var(--amber); background: color-mix(in oklch, var(--amber) 15%, transparent); }
.sim-mh-mode--shorted   { color: var(--amber);   border-color: var(--amber); }
.sim-mh-note  { color: var(--text-3); font-size: 10px; }
.sim-mh-empty { color: var(--text-3); font-size: 10px; font-style: italic; }

/* =========== SURFACE TOGGLE (Graphe / PDF) + PDF VIEW =========== */
/* Top-level choice between the derived graph view and the original schematic
   PDF. Positioned top-center so it reads as the most prominent control. */
.sch-surface-toggle{
  position:absolute;
  top:14px;
  left:50%;
  transform:translateX(-50%);
  z-index:7;
  display:inline-flex;
  background:rgba(10,17,32,.92);
  border:1px solid var(--border);
  border-radius:22px;
  overflow:hidden;
  backdrop-filter:blur(8px);
  box-shadow:0 6px 18px rgba(0,0,0,.35);
}
.sch-surface-btn{
  padding:7px 16px;
  background:transparent;
  border:0;
  color:var(--text-3);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.5px;
  text-transform:uppercase;
  cursor:pointer;
  transition:all .15s;
  border-right:1px solid var(--border);
  font-weight:600;
}
.sch-surface-btn:last-child{border-right:0}
.sch-surface-btn:hover{color:var(--text);background:rgba(30,42,60,.5)}
.sch-surface-btn.on{background:rgba(56,189,248,.16);color:var(--cyan)}

/* PDF surface — custom dark viewer. Occupies the same area as the graph
   canvas; hidden by default and shown when `.sch-root.surface-pdf` is set. */
.sch-pdf-view{
  position:absolute;
  inset:0;
  display:none;
  background:var(--bg-deep);
  z-index:2;
}

/* Vertical scroll of page cards. Top gutter reserves space for the surface
   toggle + search pill; bottom gutter for the page indicator. */
.sch-pdf-scroll{
  position:absolute;
  inset:58px 0 44px 0;
  overflow:auto;
  /* scroll horizontal activé — sans ça, `max-width:100%` sur les figures
     clampe la largeur, l'img déborde mais l'overlay des anchors reste
     clampé, et les highlights se décalent quand on zoome. */
  padding:20px 32px 40px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:24px;
  scroll-behavior:smooth;
}
.sch-pdf-scroll::-webkit-scrollbar{width:10px}
.sch-pdf-scroll::-webkit-scrollbar-track{background:var(--bg-deep)}
.sch-pdf-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}
.sch-pdf-scroll::-webkit-scrollbar-thumb:hover{background:var(--border-soft)}

/* Page card — the rasterised schematic with a mono page chip on top and
   the anchors-overlay stacked on top of the PNG. Pro-tool aesthetic:
   subtle border, soft shadow, no rounded-cartoon vibe. */
.sch-pdf-page{
  position:relative;
  /* PNG fournit déjà son propre fond blanc (rendu par pdftoppm depuis le
     PDF vectoriel) — pas de background ici pour éviter la bande crème
     derrière l'image. */
  background:transparent;
  border:1px solid var(--border);
  box-shadow:0 8px 24px rgba(0,0,0,.45);
  /* Largeur calée exactement sur l'image (qui porte le zoom). Pas de
     max-width: le container a un scroll horizontal pour les forts
     zooms, et l'overlay des anchors DOIT matcher la largeur de l'img
     sans clamping sinon les highlights se décalent. */
  width:fit-content;
  margin:0;
  flex-shrink:0;
}
.sch-pdf-page img{
  display:block;
  /* La largeur de base (--sch-pdf-base) est appliquée par JS après load
     d'après img.naturalWidth (borné à 1400px), puis multipliée par le
     zoom --sch-pdf-zoom. Pas de transform ici. */
  width:calc(var(--sch-pdf-base, 100%) * var(--sch-pdf-zoom, 1));
  height:auto;
  user-select:none;
  -webkit-user-drag:none;
}
.sch-pdf-page-chip{
  position:absolute;
  top:-11px;
  left:12px;
  padding:3px 8px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:3px;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.5px;
  color:var(--text-2);
  text-transform:uppercase;
  z-index:2;
}
.sch-pdf-page.current .sch-pdf-page-chip{
  color:var(--cyan);
  border-color:rgba(56,189,248,.45);
  background:rgba(10,17,32,.95);
}

/* Anchors overlay — absolute-positioned layer matching the PNG pixel box.
   Individual anchor rects are invisible by default (but still clickable);
   `.hit` class is toggled by the search to light them up cyan. */
.sch-pdf-anchors{
  position:absolute;
  inset:0;
  pointer-events:none;
}
.sch-pdf-anchor{
  position:absolute;
  /* box-sizing: border-box pour que les 1.5px de border ne s'ajoutent pas
     à la largeur % calculée — sans ça, la border pixel-fixe décalait le
     rectangle vs la bbox quand l'utilisateur zoomait. */
  box-sizing:border-box;
  border:1.5px solid transparent;
  border-radius:2px;
  pointer-events:auto;
  cursor:pointer;
  transition:border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.sch-pdf-anchor.hit{
  border-color:var(--cyan);
  background:rgba(56,189,248,.28);
  box-shadow:0 0 0 3px rgba(56,189,248,.22), 0 0 18px rgba(56,189,248,.5);
  animation:sch-pdf-hit-pulse 1.6s ease-in-out infinite;
}
@keyframes sch-pdf-hit-pulse{
  0%,100%{box-shadow:0 0 0 3px rgba(56,189,248,.22), 0 0 18px rgba(56,189,248,.5)}
  50%    {box-shadow:0 0 0 5px rgba(56,189,248,.34), 0 0 24px rgba(56,189,248,.7)}
}

/* Floating search pill — top-right, same glass aesthetic as .sch-filter */
.sch-pdf-search{
  position:absolute;
  top:16px;
  right:16px;
  z-index:6;
  display:flex;
  align-items:center;
  gap:8px;
  background:rgba(10,17,32,.92);
  border:1px solid var(--border);
  border-radius:20px;
  backdrop-filter:blur(6px);
  padding:4px 10px;
  color:var(--text-3);
}
.sch-pdf-search input{
  background:transparent;
  border:0;
  color:var(--text);
  font-family:var(--mono);
  font-size:11px;
  padding:4px 6px;
  min-width:170px;
  outline:none;
}
.sch-pdf-search input::placeholder{color:var(--text-3)}
.sch-pdf-search-status{
  font-family:var(--mono);
  font-size:10px;
  color:var(--text-3);
  min-width:70px;
  text-align:right;
}
.sch-pdf-search-status.hit{color:var(--cyan)}
.sch-pdf-search-status.miss{color:var(--amber)}

/* Zoom controls (bottom-right), mirrors .sch-zoom */
.sch-pdf-zoom{
  position:absolute;
  right:16px;
  bottom:16px;
  display:flex;
  flex-direction:column;
  gap:6px;
  background:rgba(20,32,48,.85);
  border:1px solid var(--border);
  backdrop-filter:blur(8px);
  border-radius:8px;
  padding:6px;
  z-index:5;
}
.sch-pdf-zoom-btn{
  width:34px;
  height:34px;
  border-radius:5px;
  background:transparent;
  border:0;
  color:var(--text-2);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:all .15s;
}
.sch-pdf-zoom-btn:hover{background:var(--panel-2);color:var(--text)}
.sch-pdf-zoom-label{
  font-family:var(--mono);
  font-size:10px;
  color:var(--text-3);
  text-align:center;
  padding:2px 0;
}

/* Page indicator (bottom-center) — sticky readout of the page currently
   dominant in the viewport. */
.sch-pdf-pagepill{
  position:absolute;
  bottom:16px;
  left:50%;
  transform:translateX(-50%);
  padding:6px 14px;
  background:rgba(10,17,32,.92);
  border:1px solid var(--border);
  border-radius:20px;
  backdrop-filter:blur(6px);
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.4px;
  color:var(--text-2);
  z-index:5;
  text-transform:uppercase;
}

.sch-pdf-empty{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--bg);
  z-index:4;
}
.sch-pdf-empty.hidden{display:none}

/* When surface=pdf: reveal the iframe, hide every graph-specific chrome so
   the PDF viewer gets the full workspace. Surface toggle stays pinned. */
.sch-root.surface-pdf .sch-pdf-view{display:block}
.sch-root.surface-pdf .sch-canvas,
.sch-root.surface-pdf .sch-statsbar,
.sch-root.surface-pdf .sch-filter,
.sch-root.surface-pdf .sch-zoom,
.sch-root.surface-pdf .sch-railbar,
.sch-root.surface-pdf .sch-boot-timeline,
.sch-root.surface-pdf .sch-grid,
.sch-root.surface-pdf .sch-inspector,
.sch-root.surface-pdf .sch-empty{display:none !important}

/* Phase 4.5 — Q stuck_on / stuck_off picker tints */
.sim-mode-picker[data-kind="passive_q"] button[data-mode="stuck_on"],
.sim-mode-picker[data-kind="rail"] button[data-mode="stuck_on"] {
  color: var(--violet);
  border-color: color-mix(in oklch, var(--violet) 40%, transparent);
}
.sim-mode-picker[data-kind="passive_q"] button[data-mode="stuck_off"] {
  color: var(--text-3);
  border-color: color-mix(in oklch, var(--text-3) 40%, transparent);
}
.sim-mode-picker[data-kind="passive_q"] button[data-mode="stuck_on"].active {
  background: color-mix(in oklch, var(--violet) 30%, var(--panel-2));
}
.sim-mode-picker[data-kind="rail"] button[data-mode="stuck_on"].active {
  background: color-mix(in oklch, var(--violet) 30%, var(--panel-2));
}
.sim-mode-picker[data-kind="passive_q"] button[data-mode="stuck_off"].active {
  background: color-mix(in oklch, var(--text-3) 20%, var(--panel-2));
}