.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);}
.seplab-lede{margin:0 0 1.5rem;padding:1rem 1.1rem;border-radius:14px;border:1px solid var(--border);background:linear-gradient(135deg,rgba(139,90,43,0.08) 0%,var(--surface-muted) 55%,var(--surface) 100%);box-shadow:var(--shadow-soft);}
.seplab-lede h2{font-size:1.05rem;font-weight:700;margin:0 0 0.5rem;color:var(--text-main);}
.seplab-lede p{font-size:0.95rem;color:var(--text-muted);margin:0 0 0.65rem;line-height:1.55;}
.seplab-lede p:last-child{margin-bottom:0;}
.seplab-lede ul{margin:0;padding-left:1.15rem;color:var(--text-muted);font-size:0.92rem;line-height:1.5;}
.seplab-shell{border-radius:18px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-soft);overflow:hidden;margin-bottom:2.25rem;}
.seplab-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.5rem;padding:1.75rem 1.25rem;text-align:center;cursor:pointer;min-height:168px;background:radial-gradient(ellipse 120% 80% at 50% 0%,rgba(101,67,33,0.12),transparent 55%),var(--surface-muted);transition:background 0.2s ease,border-color 0.2s ease;border-bottom:1px solid var(--border);}
.seplab-drop:focus{outline:2px solid var(--primary);outline-offset:2px;}
.seplab-drop:hover{background:radial-gradient(ellipse 120% 80% at 50% 0%,rgba(139,90,43,0.18),transparent 55%),var(--surface-muted);}
.seplab-drop[hidden]{display:none!important;}
.seplab-file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;}
.seplab-drop__glyph{width:48px;height:48px;border-radius:12px;background:linear-gradient(145deg,#c9a06c,#7d4e24);box-shadow:0 6px 18px rgba(61,37,16,0.25);position:relative;}
.seplab-drop__glyph::after{content:"";position:absolute;inset:10px;border-radius:6px;border:2px dashed rgba(255,255,255,0.55);}
.seplab-drop__title{font-weight:700;font-size:1.05rem;margin:0;color:var(--text-main);}
.seplab-drop__hint{font-size:0.88rem;color:var(--text-muted);margin:0;max-width:280px;}
.seplab-drop__hint span{color:var(--primary);}
.seplab-work{display:flex;flex-direction:column;}
.seplab-work[hidden]{display:none!important;}
.seplab-stage-wrap{padding:0.85rem 0.85rem 0;background:linear-gradient(180deg,var(--surface-muted) 0%,var(--surface) 40%);}
.seplab-stage{display:flex;justify-content:center;width:100%;max-width:520px;margin:0 auto;}
.seplab-frame{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:#0d0b09;box-shadow:0 8px 28px rgba(0,0,0,0.22);}
.seplab-canvas--sepia{position:relative;display:block;width:100%;height:auto;vertical-align:top;z-index:1;}
.seplab-canvas--orig{position:absolute;left:0;top:0;width:100%;height:100%;z-index:2;clip-path:inset(0 calc(100% - var(--seplab-split,50%)) 0 0);pointer-events:none;}
.seplab-divider{position:absolute;top:0;bottom:0;left:var(--seplab-split,50%);width:3px;margin-left:-1.5px;background:rgba(255,248,235,0.92);box-shadow:0 0 0 1px rgba(0,0,0,0.35),0 0 12px rgba(0,0,0,0.4);z-index:4;pointer-events:none;}
.seplab-divider__knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;background:var(--surface);border:2px solid rgba(201,160,108,0.9);box-shadow:0 4px 14px rgba(0,0,0,0.35);pointer-events:none;}
.seplab-split-rail{padding:0.65rem 1rem 0.85rem;max-width:520px;margin:0 auto;}
.seplab-split-label{display:flex;justify-content:space-between;align-items:center;font-size:0.78rem;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;color:var(--text-muted);margin-bottom:0.35rem;}
.seplab-split{width:100%;accent-color:#8b5a2b;height:6px;}
.seplab-legend{display:flex;justify-content:space-between;font-size:0.75rem;color:var(--text-muted);margin-top:0.25rem;}
.seplab-deck{padding:1rem 1rem 1.25rem;display:flex;flex-direction:column;gap:1rem;background:var(--surface);}
.seplab-row{display:flex;flex-direction:column;gap:0.45rem;}
.seplab-row label,.seplab-field-label{font-size:0.8rem;font-weight:600;text-transform:uppercase;letter-spacing:0.03em;color:var(--text-muted);margin:0;}
.seplab-intensity-wrap{display:flex;align-items:center;gap:0.75rem;}
.seplab-intensity{flex:1;accent-color:#a0522d;height:8px;}
.seplab-pill{min-width:3rem;text-align:center;font-size:0.85rem;font-weight:700;padding:0.25rem 0.5rem;border-radius:999px;background:var(--surface-muted);border:1px solid var(--border);color:var(--text-main);}
.seplab-warmth{display:grid;grid-template-columns:repeat(5,1fr);gap:0.35rem;}
.seplab-warmth button{font-size:0.72rem;font-weight:600;padding:0.5rem 0.2rem;border-radius:10px;border:1px solid var(--border);background:var(--surface-muted);color:var(--text-muted);transition:background 0.15s ease,color 0.15s ease,border-color 0.15s ease;}
.seplab-warmth button.seplab-warmth--on{background:linear-gradient(145deg,rgba(201,160,108,0.35),rgba(125,78,36,0.15));border-color:rgba(139,90,43,0.55);color:var(--text-main);}
.seplab-actions{display:flex;flex-wrap:wrap;gap:0.6rem;}
.seplab-btn{font-size:0.9rem;font-weight:600;padding:0.65rem 1.15rem;border-radius:12px;border:none;cursor:pointer;transition:transform 0.12s ease,opacity 0.12s ease;}
.seplab-btn:active{transform:scale(0.98);}
.seplab-btn--primary{background:linear-gradient(145deg,#c9a06c,#6b3f1d);color:#fff;box-shadow:0 4px 14px rgba(61,37,16,0.3);}
.seplab-btn--primary:disabled{opacity:0.45;cursor:not-allowed;box-shadow:none;}
.seplab-btn--ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border);}
.seplab-prose{margin-top:2.5rem;padding-bottom:2rem;}
.seplab-prose h2{font-size:1.35rem;font-weight:700;margin:2rem 0 0.75rem;color:var(--text-main);}
.seplab-prose h2:first-child{margin-top:0;}
.seplab-prose p{font-size:1rem;line-height:1.65;color:var(--text-muted);margin:0 0 1rem;}
.seplab-prose .seplab-callout{margin:1.25rem 0;padding:1rem 1.1rem;border-left:4px solid #8b5a2b;border-radius:0 12px 12px 0;background:var(--surface-muted);}
.seplab-prose .seplab-callout p{margin:0;color:var(--text-main);font-size:0.95rem;}
.seplab-dl{margin:1rem 0 1.5rem;display:grid;gap:0.85rem;}
.seplab-dl div{padding:0.75rem 0;border-bottom:1px solid var(--border);}
.seplab-dl dt{font-weight:700;font-size:0.9rem;color:var(--text-main);margin:0 0 0.2rem;}
.seplab-dl dd{margin:0;font-size:0.92rem;color:var(--text-muted);line-height:1.55;}
@media (min-width:768px){.seplab-deck{padding:1.15rem 1.35rem 1.4rem;}.seplab-drop{min-height:188px;padding:2rem;}.seplab-warmth button{font-size:0.78rem;}}