.jbf-section{margin-bottom:2rem;}
.jbf-card{background:var(--surface,#fff);border:1px solid var(--border,rgba(0,0,0,.08));border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,.06),0 12px 32px -8px rgba(0,0,0,.08);overflow:hidden;}
.jbf-bar{display:flex;flex-wrap:wrap;gap:8px;padding:12px 16px;background:var(--surface-muted,rgba(0,0,0,.02));border-bottom:1px solid var(--border,rgba(0,0,0,.08));-webkit-tap-highlight-color:transparent;}
.jbf-action{border-radius:999px;font-size:0.9375rem;font-weight:500;padding:10px 18px;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .12s ease;}
.jbf-action:active{transform:scale(0.97);}
.jbf-action-primary{background:var(--primary,#2563eb);color:#fff;border-color:var(--primary,#2563eb);}
.jbf-action-primary:hover{background:var(--primary-dark,#1d4ed8);border-color:var(--primary-dark,#1d4ed8);box-shadow:0 4px 12px rgba(37,99,235,.25);}
.jbf-action-ghost{background:transparent;color:var(--text-main,#111);border-color:var(--border,rgba(0,0,0,.12));}
.jbf-action-ghost:hover{background:var(--surface-muted,rgba(0,0,0,.04));border-color:var(--border,rgba(0,0,0,.2));}
.jbf-panes{display:flex;flex-direction:column;}
.jbf-pane{border-top:1px solid var(--border,rgba(0,0,0,.08));}
.jbf-pane:first-of-type{border-top:none;}
.jbf-pane-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 16px 8px;min-height:40px;}
.jbf-pane-label{font-size:0.8125rem;font-weight:600;color:var(--text-muted,#6b7280);letter-spacing:.02em;}
.jbf-copy{font-size:0.8125rem;font-weight:500;padding:6px 12px;border-radius:8px;border:1px solid var(--primary,#2563eb);background:transparent;color:var(--primary,#2563eb);cursor:pointer;transition:background .2s ease,color .2s ease;-webkit-tap-highlight-color:transparent;}
.jbf-copy:hover{background:rgba(37,99,235,.08);}
.jbf-copy.copied{background:rgba(34,197,94,.12);color:#15803d;border-color:#22c55e;}
.jbf-editor-wrap{padding:0 16px 16px;}
.jbf-editor{min-height:260px;width:100%;border-radius:10px;border:1px solid var(--border,rgba(0,0,0,.1));overflow:hidden;}
.jbf-status{font-size:0.875rem;color:var(--text-muted);margin:10px 0 0;min-height:1.5em;}
@media (min-width:768px){.jbf-panes{flex-direction:row;min-height:400px;}
.jbf-pane{flex:1;border-top:none;border-left:1px solid var(--border,rgba(0,0,0,.08));display:flex;flex-direction:column;}
.jbf-pane:first-of-type{border-left:none;}
.jbf-pane-head{padding:14px 20px 10px;}
.jbf-editor-wrap{flex:1;padding:0 20px 20px;display:flex;flex-direction:column;min-height:0;}
.jbf-editor{min-height:360px;flex:1;}
.jbf-bar{padding:14px 20px;justify-content:flex-start;}
}
@media (min-width:992px){.jbf-editor{min-height:420px;}
.jbf-card{border-radius:20px;}
}
@media (max-width:479px){.jbf-bar{padding:10px 12px;gap:6px;}
.jbf-action{padding:10px 14px;font-size:0.875rem;}
.jbf-pane-head{padding:8px 12px 6px;}
.jbf-editor-wrap{padding:0 12px 12px;}
.jbf-editor{min-height:220px;}
}