.bmc-image{--primary:#2563eb;--primary-dark:#1d4ed8;--surface:#ffffff;--surface-muted:#f4f6fb;--border:#e2e8f0;--text-main:#0f172a;--text-muted:#64748b;--shadow-soft:0 20px 45px rgba(15,23,42,0.08);}
.isat-prose{margin-top:2.5rem;padding-bottom:3rem;}
.isat-prose h2{font-size:1.35rem;font-weight:700;margin-top:2.25rem;margin-bottom:0.75rem;color:var(--text-main);}
.isat-prose h3{font-size:1.05rem;font-weight:600;margin-top:1.5rem;margin-bottom:0.5rem;color:var(--text-main);}
.isat-prose p,.isat-prose li{font-size:0.95rem;line-height:1.65;color:var(--text-muted);}
.isat-prose p{margin-bottom:0.85rem;}
.isat-prose ul{padding-left:1.2rem;margin:0 0 1rem;}
.isat-callout{border:1px solid var(--border);border-radius:12px;padding:1rem 1.15rem;background:var(--surface-muted);margin:1.25rem 0;font-size:0.9rem;color:var(--text-muted);line-height:1.6;}
.isat-callout strong{color:var(--text-main);}
.isat-table-wrap{overflow-x:auto;margin:1rem 0;border:1px solid var(--border);border-radius:12px;}
.isat-table{width:100%;border-collapse:collapse;font-size:0.875rem;}
.isat-table th,.isat-table td{padding:0.65rem 0.85rem;text-align:left;border-bottom:1px solid var(--border);}
.isat-table th{background:var(--surface-muted);color:var(--text-main);font-weight:600;}
.isat-table tr:last-child td{border-bottom:none;}
.isat-aside{border-left:3px solid var(--primary);padding:0.5rem 0 0.5rem 1rem;margin:1.25rem 0;font-size:0.9rem;color:var(--text-muted);}
.isat-workbench{margin-top:0.5rem;margin-bottom:0.25rem;}
.isat-shell{background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-soft);overflow:hidden;}
.isat-dropfield{margin:0;padding:clamp(1.25rem,4vw,2rem);text-align:center;border-bottom:1px solid var(--border);background:linear-gradient(180deg,var(--surface-muted) 0%,var(--surface) 100%);cursor:pointer;transition:background 0.2s ease,border-color 0.2s ease;position:relative;}
.isat-dropfield:hover,.isat-dropfield.isat-dropfield--active{background:var(--surface-muted);}
.isat-dropfield__icon{width:48px;height:48px;margin:0 auto 0.75rem;border-radius:12px;background:conic-gradient(from 0deg,#94a3b8,#f43f5e,#f97316,#eab308,#22c55e,#3b82f6,#a855f7,#94a3b8);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 2px rgba(255,255,255,0.35);}
.isat-dropfield__title{font-weight:700;font-size:1.05rem;color:var(--text-main);margin:0 0 0.35rem;}
.isat-dropfield__hint{font-size:0.875rem;color:var(--text-muted);margin:0;}
.isat-dropfield__hint span{color:var(--primary);font-weight:600;}
.isat-active{display:flex;flex-direction:column;min-height:min(60vh,520px);}
.isat-active[hidden]{display:none!important;}
.isat-shell .isat-dropfield[hidden]{display:none!important;}
.isat-active .isat-preview{margin:0;padding:clamp(1rem,3vw,1.35rem);background:var(--surface-muted);border-bottom:1px solid var(--border);flex:1;min-height:0;}
.isat-active .isat-controls{padding:clamp(1rem,3vw,1.35rem);display:flex;flex-direction:column;gap:1.1rem;background:var(--surface);flex-shrink:0;}
.isat-spectrum{height:6px;border-radius:999px;background:linear-gradient(90deg,#737373 0%,#ef4444 14%,#f97316 28%,#eab308 42%,#22c55e 57%,#3b82f6 71%,#a855f7 85%,#ec4899 100%);opacity:0.85;margin-bottom:0.25rem;}
.isat-slider-row{display:flex;flex-direction:column;gap:0.5rem;}
.isat-slider-row label{font-size:0.8rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-muted);}
.isat-slider-wrap{display:flex;align-items:center;gap:0.75rem;}
.isat-slider{flex:1;-webkit-appearance:none;appearance:none;height:6px;border-radius:999px;background:var(--surface-muted);outline:none;}
.isat-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--primary);border:2px solid var(--surface);box-shadow:0 2px 8px rgba(0,0,0,0.15);cursor:pointer;}
.isat-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--primary);border:2px solid var(--surface);cursor:pointer;}
.isat-value-pill{min-width:3.25rem;text-align:center;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:0.8rem;font-weight:700;padding:0.35rem 0.5rem;border-radius:8px;background:var(--surface-muted);color:var(--text-main);border:1px solid var(--border);}
.isat-presets{display:flex;flex-wrap:wrap;gap:0.4rem;}
.isat-preset{font-size:0.75rem;padding:0.35rem 0.65rem;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;transition:background 0.15s ease,color 0.15s ease,border-color 0.15s ease;}
.isat-preset:hover{border-color:var(--primary);color:var(--primary);}
.isat-preset.isat-preset--on{background:var(--primary);color:#fff;border-color:var(--primary);}
.isat-switch-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;}
.isat-switch-label{font-size:0.9rem;font-weight:500;color:var(--text-main);max-width:min(100%,220px);}
.isat-switch{position:relative;width:48px;height:28px;flex-shrink:0;}
.isat-switch input{opacity:0;width:0;height:0;position:absolute;}
.isat-switch__track{position:absolute;inset:0;border-radius:999px;background:var(--surface-muted);border:1px solid var(--border);transition:background 0.2s ease;}
.isat-switch__knob{position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,0.12);transition:transform 0.2s ease;}
.isat-switch input:checked+.isat-switch__track{background:var(--primary);border-color:var(--primary);}
.isat-switch input:checked+.isat-switch__track .isat-switch__knob{transform:translateX(20px);}
.isat-actions{display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center;}
.isat-btn{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;padding:0.55rem 1rem;font-size:0.875rem;font-weight:600;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:opacity 0.15s ease,transform 0.1s ease;}
.isat-btn:active{transform:scale(0.98);}
.isat-btn--primary{background:var(--primary);color:#fff;}
.isat-btn--primary:disabled{opacity:0.45;cursor:not-allowed;}
.isat-btn--ghost{background:transparent;border-color:var(--border);color:var(--text-main);}
.isat-tablist{display:flex;gap:0.35rem;margin-bottom:0.85rem;}
@media (min-width:768px){.isat-tablist{display:none;}}
.isat-tab{font-size:0.8rem;font-weight:600;padding:0.4rem 0.85rem;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;}
.isat-tab.isat-tab--active{background:var(--text-main);color:var(--surface);border-color:var(--text-main);}
.isat-canvas-grid{display:grid;grid-template-columns:1fr;gap:1rem;}
@media (min-width:768px){.isat-canvas-grid{grid-template-columns:1fr 1fr;gap:1.25rem;}}
.isat-canvas-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:0.75rem;text-align:center;}
.isat-canvas-card.isat-canvas-card--src,.isat-canvas-card.isat-canvas-card--out{display:none;}
.isat-canvas-card.isat-canvas-card--visible{display:block;}
@media (min-width:768px){.isat-canvas-card.isat-canvas-card--src,.isat-canvas-card.isat-canvas-card--out{display:block;}}
.isat-canvas-label{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-muted);margin-bottom:0.5rem;}
.isat-canvas-card canvas{max-width:100%;height:auto;border-radius:8px;vertical-align:middle;}
.isat-file-input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}