.bmc-cryptography{--stg-bg:var(--surface,#fff);--stg-bg-alt:var(--surface-muted,#f8fafc);--stg-border:var(--border,#e2e8f0);--stg-fg:var(--text-main,#0f172a);--stg-muted:var(--text-muted,#64748b);--stg-primary:var(--primary,#2563eb);--stg-primary-hover:var(--primary-dark,#1d4ed8);--stg-radius:12px;--stg-radius-sm:8px;}
.stg-card{background:var(--stg-bg);border:1px solid var(--stg-border);border-radius:var(--stg-radius);box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden;margin-bottom:2rem;}
.stg-presets{display:flex;flex-wrap:nowrap;gap:8px;padding:1rem 1rem 0;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin;}
.stg-presets::-webkit-scrollbar{height:6px;}
.stg-preset{flex:0 0 auto;min-height:44px;padding:10px 16px;border:2px solid var(--stg-border);border-radius:999px;background:var(--stg-bg);color:var(--stg-fg);font-size:14px;font-weight:600;cursor:pointer;transition:border-color .2s,background .2s,color .2s;white-space:nowrap;}
.stg-preset:hover{border-color:var(--stg-primary);color:var(--stg-primary);}
.stg-preset--on{border-color:var(--stg-primary);background:var(--stg-primary);color:#fff;}
.stg-preset--on:hover{background:var(--stg-primary-hover);border-color:var(--stg-primary-hover);color:#fff;}
.stg-controls{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:1rem;}
.stg-field{display:flex;flex-direction:column;gap:6px;}
.stg-label{font-size:13px;font-weight:600;color:var(--stg-fg);}
.stg-input{width:100%;min-height:44px;padding:10px 14px;border:2px solid var(--stg-border);border-radius:var(--stg-radius-sm);font-size:1rem;background:var(--stg-bg);color:var(--stg-fg);}
.stg-input:focus{outline:none;border-color:var(--stg-primary);}
.stg-input--narrow{max-width:120px;}
.stg-charset{display:flex;flex-wrap:wrap;gap:8px;padding:0 1rem;}
.stg-toggle{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border:2px solid var(--stg-border);border-radius:var(--stg-radius-sm);background:var(--stg-bg);cursor:pointer;transition:border-color .2s,background .2s;}
.stg-toggle:has(input:checked){border-color:var(--stg-primary);background:rgba(37,99,235,.08);}
.stg-toggle input{position:absolute;opacity:0;pointer-events:none;}
.stg-toggle-txt{font-size:13px;font-weight:600;color:var(--stg-fg);}
.stg-do{padding:1rem;}
.stg-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;min-width:140px;padding:12px 24px;border:none;border-radius:var(--stg-radius-sm);font-size:1rem;font-weight:600;cursor:pointer;background:var(--stg-primary);color:#fff;transition:background .2s,transform .05s;}
.stg-btn:hover{background:var(--stg-primary-hover);}
.stg-btn:active{transform:scale(.98);}
.stg-load{display:flex;align-items:center;justify-content:center;gap:6px;padding:1rem;}
.stg-load[hidden]{display:none;}
.stg-load-dot{width:8px;height:8px;border-radius:50%;background:var(--stg-primary);animation:stg-bounce 1.4s ease-in-out infinite both;}
.stg-load-dot:nth-child(1){animation-delay:-.32s;}
.stg-load-dot:nth-child(2){animation-delay:-.16s;}
@keyframes stg-bounce{0%,80%,100%{transform:scale(0);}40%{transform:scale(1);}}
.stg-out{padding:1rem;border-top:1px solid var(--stg-border);background:var(--stg-bg-alt);}
.stg-out[hidden]{display:none;}
.stg-out-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;}
.stg-out-title{font-size:14px;font-weight:600;color:var(--stg-fg);}
.stg-copy{min-height:36px;padding:8px 14px;border:none;border-radius:var(--stg-radius-sm);font-size:13px;font-weight:600;cursor:pointer;background:var(--stg-primary);color:#fff;transition:background .2s;}
.stg-copy:hover{background:var(--stg-primary-hover);}
.stg-copy.stg-copied{background:#059669;}
.stg-token-wrap{margin-bottom:0;}
.stg-token{display:block;width:100%;min-height:60px;padding:14px;background:var(--stg-bg);border:1px solid var(--stg-border);border-radius:var(--stg-radius-sm);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px;line-height:1.5;color:var(--stg-fg);word-break:break-all;white-space:pre-wrap;}
.stg-batch[hidden]{display:none;}
.stg-batch-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.stg-batch-list li{padding:12px;background:var(--stg-bg);border:1px solid var(--stg-border);border-radius:var(--stg-radius-sm);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;word-break:break-all;}
.stg-note{margin:1rem;padding:12px 16px;background:#fef3c7;border:1px solid #f59e0b;border-radius:var(--stg-radius-sm);font-size:13px;color:#92400e;}
.stg-edu{max-width:720px;padding:1.5rem 0;}
.stg-edu-h{font-size:1.5rem;font-weight:700;margin-bottom:.75rem;color:var(--stg-fg);}
.stg-edu-p{margin:0 0 .75rem;line-height:1.6;color:var(--stg-fg);}
.stg-edu-p a{color:var(--stg-primary);}