.xtt-workspace{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:12px;overflow:hidden;margin-bottom:1.5rem;box-shadow:0 1px 3px rgba(0,0,0,0.06);}
.xtt-toolbar{display:flex;flex-direction:column;gap:0.75rem;padding:0.75rem 1rem;background:var(--surface-muted,#f8fafc);border-bottom:1px solid var(--border,#e2e8f0);}
.xtt-toggles{display:flex;flex-wrap:wrap;align-items:center;gap:0.35rem 0.75rem;}
.xtt-switch{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.8125rem;font-weight:500;color:var(--text-main,#334155);cursor:pointer;-webkit-tap-highlight-color:transparent;padding:0.25rem 0.5rem;border-radius:8px;transition:background 0.15s;}
.xtt-switch:hover{background:var(--surface,#fff);}
.xtt-switch input{width:0.875rem;height:0.875rem;accent-color:var(--primary,#2563eb);margin:0;flex-shrink:0;}
.xtt-sep-wrap{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;}
.xtt-sep-label{font-size:0.75rem;font-weight:600;color:var(--text-muted,#64748b);}
.xtt-sep-input{width:6rem;max-width:100%;padding:0.35rem 0.5rem;font-size:0.8125rem;border:1px solid var(--border,#e2e8f0);border-radius:6px;background:var(--surface,#fff);color:var(--text-main,#334155);}
.xtt-sep-input:focus{outline:none;border-color:var(--primary,#2563eb);box-shadow:0 0 0 2px rgba(37,99,235,0.2);}
.xtt-panes{display:flex;flex-direction:column;min-height:240px;}
.xtt-pane{display:flex;flex-direction:column;min-height:0;flex:1;border-bottom:1px solid var(--border,#e2e8f0);}
.xtt-pane:last-child{border-bottom:none;}
.xtt-pane-bar{display:flex;align-items:center;justify-content:space-between;gap:0.5rem;padding:0.4rem 0.75rem;font-size:0.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted,#64748b);background:var(--surface-muted,#f1f5f9);border-bottom:1px solid var(--border,#e2e8f0);}
.xtt-pane-title{color:var(--text-main,#334155);}
.xtt-stats{font-size:0.6875rem;font-weight:500;color:var(--text-muted,#94a3b8);text-transform:none;letter-spacing:0;}
.xtt-editor{min-height:200px;width:100%;}
.xtt-editor .ace_editor{min-height:200px;border:none;}
.xtt-editor .ace_scroller{border-radius:0;}
.xtt-actions{display:flex;flex-wrap:wrap;align-items:center;gap:0.5rem;padding:0.6rem 1rem;background:var(--surface-muted,#f8fafc);border-top:1px solid var(--border,#e2e8f0);}
.xtt-btn{padding:0.5rem 0.875rem;font-size:0.875rem;font-weight:600;border-radius:8px;cursor:pointer;transition:background 0.2s,border-color 0.2s,color 0.2s,transform 0.1s;-webkit-tap-highlight-color:transparent;border:1px solid transparent;display:inline-flex;align-items:center;gap:0.35rem;}
.xtt-btn:active{transform:scale(0.98);}
.xtt-btn-primary{color:#fff;background:var(--primary,#2563eb);border-color:var(--primary,#2563eb);}
.xtt-btn-primary:hover:not(:disabled){background:var(--primary-dark,#1d4ed8);border-color:var(--primary-dark,#1d4ed8);}
.xtt-btn-primary:disabled{opacity:0.7;cursor:not-allowed;}
.xtt-btn-ghost{color:var(--text-main,#334155);background:transparent;border-color:var(--border,#e2e8f0);}
.xtt-btn-ghost:hover:not(:disabled){background:var(--surface-muted,#f1f5f9);border-color:var(--text-muted,#cbd5e1);}
.xtt-content{margin-bottom:2rem;}
.xtt-lead{font-size:0.9375rem;line-height:1.6;color:var(--text-main,#334155);margin-bottom:0.75rem;max-width:56ch;}
.xtt-lead a{color:var(--primary,#2563eb);text-decoration:underline;}
.xtt-lead a:hover{text-decoration:none;}
.xtt-note{font-size:0.8125rem;line-height:1.5;color:var(--text-muted,#64748b);margin:0;}
@media (min-width:768px){.xtt-toolbar{flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:0.875rem 1.25rem;}
.xtt-sep-wrap{flex-basis:auto;}
.xtt-panes{display:grid;grid-template-columns:1fr 1fr;min-height:320px;}
.xtt-pane{border-bottom:none;border-right:1px solid var(--border,#e2e8f0);}
.xtt-pane:last-child{border-right:none;}
.xtt-pane-bar{padding:0.5rem 1rem;}
.xtt-editor{min-height:280px;}
.xtt-editor .ace_editor{min-height:280px;}
.xtt-actions{padding:0.75rem 1.25rem;gap:0.75rem;}
}
@media (min-width:992px){.xtt-editor{min-height:360px;}
.xtt-editor .ace_editor{min-height:360px;}
}