/* GoMathy V48 — Second degré : matrice complète signe(a) × signe(Δ) */
.gm48-second-degree{
  margin:16px 0 8px;
  border:1px solid #cbd5e1;
  border-radius:18px;
  background:#fff;
  overflow:hidden;
  box-shadow:0 8px 22px rgba(15,23,42,.06);
}
.gm48-second-degree__head{
  padding:16px 18px 14px;
  background:linear-gradient(135deg,#eff6ff 0%,#eef2ff 55%,#f8fafc 100%);
  border-bottom:1px solid #dbeafe;
}
.gm48-second-degree__head h4{margin:0;color:#1e3a8a;font-size:1.02rem;font-weight:900;line-height:1.3}
.gm48-second-degree__head p{margin:5px 0 0;color:#475569;font-size:.84rem;line-height:1.5}
.gm48-second-degree__formula-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
  padding:12px;
  background:#fff;
  border-bottom:1px solid #e2e8f0;
}
.gm48-second-degree__formula-strip>div{
  border:1px solid #e2e8f0;
  border-radius:12px;
  padding:9px 10px;
  background:#f8fafc;
  min-width:0;
}
.gm48-second-degree__formula-strip b{display:block;color:#334155;font-size:.7rem;text-transform:uppercase;letter-spacing:.055em;margin-bottom:3px}
.gm48-second-degree__formula-strip span{display:block;color:#0f172a;font-size:.88rem;font-weight:800;line-height:1.35;overflow-wrap:anywhere}
.gm48-second-degree__scroll{overflow-x:auto;padding:12px;background:#fff}
.gm48-second-degree__matrix{width:100%;min-width:820px;border-collapse:separate;border-spacing:7px;table-layout:fixed}
.gm48-second-degree__matrix th,.gm48-second-degree__matrix td{vertical-align:top}
.gm48-second-degree__matrix thead th{
  padding:9px 10px;border-radius:11px;background:#e0e7ff;color:#312e81;font-size:.8rem;font-weight:900;text-align:center
}
.gm48-second-degree__matrix thead th:first-child{background:#f1f5f9;color:#334155;width:92px}
.gm48-second-degree__matrix tbody th{
  padding:12px 9px;border-radius:12px;background:#0f172a;color:#fff;text-align:center;font-size:.95rem;font-weight:900
}
.gm48-second-degree__case{
  padding:11px 12px;border-radius:13px;border:1px solid #dbeafe;background:#f8fafc;color:#334155;font-size:.76rem;line-height:1.45
}
.gm48-second-degree__case strong{display:block;color:#0f172a;font-size:.82rem;margin-bottom:5px}
.gm48-second-degree__case .gm48-shape{float:right;font-size:1.6rem;font-weight:900;line-height:1;color:#64748b;margin-left:8px}
.gm48-second-degree__case .gm48-sign{display:block;margin:6px 0 4px;padding:5px 7px;border-radius:8px;background:#fff;border:1px solid #e2e8f0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem;font-weight:900;text-align:center;color:#0f172a}
.gm48-second-degree__case.gm48-positive{background:#f0fdf4;border-color:#bbf7d0}
.gm48-second-degree__case.gm48-negative{background:#fff7ed;border-color:#fed7aa}
.gm48-second-degree__case.gm48-mixed{background:#fefce8;border-color:#fde68a}
.gm48-second-degree__memory{
  margin:0 12px 13px;padding:10px 12px;border-radius:12px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;font-size:.8rem;line-height:1.5
}
.gm48-second-degree__memory b{font-weight:900}
.gm98-formula-body .gm48-second-degree{margin-top:0;box-shadow:none}
.gm98-formula-body .gm48-second-degree__head{padding:13px 14px 11px}
.gm98-formula-body .gm48-second-degree__formula-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:9px}
.gm98-formula-body .gm48-second-degree__scroll{padding:7px}
.gm98-formula-body .gm48-second-degree__matrix{min-width:720px;border-spacing:5px}
.gm98-formula-body .gm48-second-degree__case{padding:9px 10px;font-size:.71rem}

@media (max-width:760px){
  .gm48-second-degree__formula-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gm48-second-degree__head{padding:14px}
  .gm48-second-degree__scroll{padding:8px}
}
@media print{
  .gm48-second-degree{break-inside:avoid;box-shadow:none;margin:8px 0}
  .gm48-second-degree__head{padding:9px 11px}
  .gm48-second-degree__head p{font-size:7.8pt}
  .gm48-second-degree__formula-strip{grid-template-columns:repeat(4,1fr);gap:4px;padding:6px}
  .gm48-second-degree__formula-strip>div{padding:5px 6px}
  .gm48-second-degree__formula-strip b{font-size:6.5pt}.gm48-second-degree__formula-strip span{font-size:7.3pt}
  .gm48-second-degree__scroll{overflow:visible;padding:5px}
  .gm48-second-degree__matrix{min-width:0;border-spacing:3px}
  .gm48-second-degree__matrix thead th,.gm48-second-degree__matrix tbody th{padding:5px;font-size:6.8pt}
  .gm48-second-degree__case{padding:5px 6px;font-size:6.4pt;line-height:1.3}
  .gm48-second-degree__case strong{font-size:6.8pt;margin-bottom:2px}
  .gm48-second-degree__case .gm48-shape{font-size:13pt}
  .gm48-second-degree__case .gm48-sign{font-size:6.2pt;margin:3px 0;padding:3px}
  .gm48-second-degree__memory{margin:0 6px 6px;padding:5px 7px;font-size:6.7pt}
}