.dt-tool-05{display:grid;grid-template-columns:minmax(320px,.82fr) minmax(0,1.18fr);gap:18px;align-items:start}
.dt-tool-05-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:var(--shadow-sm);min-width:0}
.dt-tool-05-input-card{position:sticky;top:20px}
.dt-tool-05-input{min-height:430px;font-family:"Cascadia Code","SFMono-Regular",Consolas,monospace}
.dt-tool-05-file input{display:none}
.dt-tool-05-stage{position:relative;min-height:560px;border:1px solid var(--border);border-radius:18px;background:linear-gradient(180deg,#fbfcff,#f5f8fd);overflow:hidden;touch-action:none;cursor:grab}
.dt-tool-05-stage.is-panning{cursor:grabbing}
.dt-tool-05-toolbar{position:absolute;left:14px;top:14px;z-index:4;display:flex;align-items:center;gap:6px;padding:6px;border:1px solid var(--border);border-radius:12px;background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:var(--shadow-sm);backdrop-filter:blur(14px)}
.dt-tool-05-toolbar button{min-width:34px;height:32px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text);font-weight:900;cursor:pointer}
.dt-tool-05-toolbar span{min-width:48px;text-align:center;color:var(--muted);font-size:.78rem;font-weight:800}
.dt-tool-05-empty{position:absolute;inset:66px 18px 18px;z-index:1;display:grid;place-content:center;text-align:center;border:1px dashed var(--border-strong);border-radius:16px;background:rgba(255,255,255,.68);color:var(--muted);padding:22px}
.dt-tool-05-empty[hidden]{display:none}
.dt-tool-05-empty h2{margin:0 0 8px;color:var(--text);font-size:1.04rem}
.dt-tool-05-empty p{margin:0}
.dt-tool-05-output{position:absolute;left:0;top:0;z-index:2;transform-origin:0 0;will-change:transform}
.dt-tool-05-output svg{max-width:none;background:#fff;border-radius:12px;box-shadow:var(--shadow-sm)}
.dt-tool-05-error{width:100%;border:1px solid rgba(239,68,68,.28);background:rgba(239,68,68,.08);color:#b42318;border-radius:14px;padding:14px;white-space:pre-wrap}
.dt-tool-05-status{color:var(--muted);font-size:.82rem}
body[data-page-kind="tool"] .hero-mini+.dt-tool-05{margin-top:18px}
@media (max-width:900px){
  .dt-tool-05{grid-template-columns:1fr;margin-bottom:88px}
  .dt-tool-05-input-card{position:static}
  .dt-tool-05-input{min-height:360px}
  .dt-tool-05-stage{min-height:520px}
  .dt-tool-05-card{border-radius:18px;padding:14px}
  .dt-tool-05-toolbar{left:10px;right:10px;top:10px;overflow-x:auto}
}
@media (max-width:640px){
  body[data-page-kind="tool"] .hero-mini+.dt-tool-05{margin-top:14px}
}