body.bmc-math{--surface:#ffffff;--surface-muted:#f1f5f9;--border:#e2e8f0;--text-main:#0f172a;--text-muted:#64748b;--primary:#2563eb;--primary-dark:#1d4ed8;--accent:#7c3aed;--shadow-soft:0 8px 30px rgba(15,23,42,0.08);color:var(--text-main);}
.cnc-workspace{margin-bottom:3rem;}
.cnc-tool-grid{display:flex;flex-direction:column;gap:1.25rem;border-radius:18px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-soft);padding:1rem;}
@media (min-width:992px){.cnc-tool-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);gap:1.5rem;align-items:start;padding:1.25rem 1.5rem;}}
.cnc-tool-options{display:flex;flex-direction:column;gap:1.25rem;min-width:0;}
.cnc-tool-results{display:flex;flex-direction:column;gap:1.25rem;min-width:0;}
@media (min-width:992px){.cnc-tool-results{position:sticky;top:1rem;align-self:start;}}
.cnc-tool-options .cnc-operands{grid-template-columns:1fr;}
.cnc-tool-options .cnc-op-chips{flex-wrap:wrap;}
.cnc-tool-options .cnc-op-scroll{overflow-x:visible;}
.cnc-telemetry{display:grid;grid-template-columns:1fr;gap:0.5rem;padding:0.75rem 1rem;border-radius:14px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 12%,transparent),color-mix(in srgb,var(--accent) 8%,transparent));border:1px solid var(--border);box-shadow:var(--shadow-soft);}
@media (min-width:640px){.cnc-telemetry{grid-template-columns:repeat(2,1fr);}}
.cnc-tel-item{display:flex;flex-wrap:wrap;align-items:baseline;gap:0.35rem 0.75rem;font-size:0.8125rem;color:var(--text-muted);}
.cnc-tel-item strong{font-size:0.9375rem;color:var(--text-main);font-weight:600;font-variant-numeric:tabular-nums;}
.cnc-tel-label{letter-spacing:0.04em;text-transform:uppercase;font-size:0.6875rem;font-weight:600;color:var(--text-muted);}
.cnc-operands{display:grid;grid-template-columns:1fr;gap:1rem;}
@media (min-width:768px){.cnc-operands{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;}}
.cnc-card{border-radius:16px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-soft);padding:1rem 1.1rem;position:relative;overflow:hidden;}
.cnc-card::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:linear-gradient(180deg,var(--primary),var(--accent));}
.cnc-z1::before{opacity:0.95;}
.cnc-z2::before{opacity:0.65;}
.cnc-card-head{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;margin-bottom:0.85rem;}
.cnc-card-title{font-size:0.75rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;color:var(--text-muted);}
.cnc-card-badge{font-size:0.6875rem;padding:0.2rem 0.5rem;border-radius:999px;background:var(--surface-muted);color:var(--text-muted);font-weight:600;}
.cnc-grid{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem;}
.cnc-field{display:flex;flex-direction:column;gap:0.35rem;}
.cnc-field label{font-size:0.8125rem;font-weight:600;color:var(--text-main);}
.cnc-field input{width:100%;box-sizing:border-box;padding:0.65rem 0.75rem;border-radius:10px;border:1px solid var(--border);background:var(--surface-muted);color:var(--text-main);font-size:1rem;font-variant-numeric:tabular-nums;min-height:44px;}
.cnc-field input:focus{outline:2px solid color-mix(in srgb,var(--primary) 45%,transparent);outline-offset:1px;border-color:var(--primary);}
.cnc-preview{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:0.8125rem;color:var(--text-muted);margin-top:0.5rem;min-height:1.25em;}
.cnc-op-panel{border-radius:16px;border:1px solid var(--border);background:var(--surface);padding:0.85rem 0 0.85rem;}
.cnc-op-head{padding:0 1rem 0.65rem;font-size:0.75rem;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:var(--text-muted);}
.cnc-op-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto;padding:0 1rem 0.25rem;scrollbar-width:thin;}
.cnc-op-chips{display:flex;flex-wrap:nowrap;gap:0.5rem;padding-bottom:0.35rem;}
@media (min-width:768px){.cnc-op-chips{flex-wrap:wrap;}}
.cnc-chip{flex:0 0 auto;min-height:44px;padding:0 1rem;border-radius:999px;border:1px solid var(--border);background:var(--surface-muted);color:var(--text-main);font-size:0.8125rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background 0.15s ease,border-color 0.15s ease,transform 0.1s ease;}
.cnc-chip:hover{background:color-mix(in srgb,var(--primary) 10%,var(--surface-muted));border-color:color-mix(in srgb,var(--primary) 35%,var(--border));}
.cnc-chip:active{transform:scale(0.98);}
.cnc-chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.cnc-examples{display:flex;flex-wrap:wrap;gap:0.5rem;padding:0.65rem 1rem 0;border-top:1px solid var(--border);margin-top:0.5rem;}
.cnc-ex-btn{min-height:40px;padding:0 0.75rem;border-radius:10px;border:1px dashed var(--border);background:transparent;color:var(--primary);font-size:0.75rem;font-weight:600;cursor:pointer;}
.cnc-ex-btn:hover{border-style:solid;background:color-mix(in srgb,var(--primary) 8%,transparent);}
.cnc-output{border-radius:16px;border:1px solid var(--border);background:var(--surface-muted);padding:1rem 1.1rem;min-height:5.5rem;}
.cnc-output-label{font-size:0.6875rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;color:var(--text-muted);margin-bottom:0.5rem;}
.cnc-output-body{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:0.9375rem;line-height:1.55;color:var(--text-main);word-break:break-word;}
.cnc-output-body h4{margin:0 0 0.35rem;font-size:0.8125rem;font-weight:700;color:var(--primary);font-family:inherit;}
.cnc-output-body p{margin:0.25rem 0;}
.cnc-plane-wrap{border-radius:16px;border:1px solid var(--border);background:var(--surface);padding:0.75rem;box-shadow:var(--shadow-soft);}
.cnc-plane-wrap canvas{display:block;width:100%;height:auto;aspect-ratio:1/1;border-radius:12px;background:linear-gradient(180deg,color-mix(in srgb,var(--surface-muted) 80%,var(--surface)),var(--surface-muted));}
.cnc-plane-caption{font-size:0.75rem;color:var(--text-muted);margin-top:0.5rem;text-align:center;}
.cnc-prose{margin-top:2.5rem;padding-top:2rem;border-top:1px solid var(--border);}
.cnc-prose h2{font-size:1.35rem;font-weight:700;margin:0 0 0.75rem;color:var(--text-main);}
.cnc-prose h3{font-size:1.05rem;font-weight:700;margin:2rem 0 0.5rem;color:var(--text-main);}
.cnc-prose p{font-size:0.9375rem;line-height:1.65;color:var(--text-muted);margin:0 0 1rem;}
.cnc-prose ul{margin:0 0 1rem;padding-left:1.25rem;color:var(--text-muted);font-size:0.9375rem;line-height:1.6;}
.cnc-prose li{margin-bottom:0.35rem;}
.cnc-callout{margin:1.5rem 0;padding:1rem 1.15rem;border-radius:14px;border-left:4px solid var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface-muted));color:var(--text-main);}
.cnc-callout strong{display:block;font-size:0.8125rem;margin-bottom:0.35rem;color:var(--text-main);}
.cnc-dl{display:grid;gap:0.75rem;margin:1rem 0 1.5rem;}
@media (min-width:640px){.cnc-dl{grid-template-columns:1fr 1fr;}}
.cnc-dl div{padding:0.85rem 1rem;border-radius:12px;border:1px solid var(--border);background:var(--surface);}
.cnc-dl dt{font-size:0.6875rem;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:var(--text-muted);margin-bottom:0.35rem;}
.cnc-dl dd{margin:0;font-size:0.875rem;line-height:1.55;color:var(--text-muted);}