:root{--bg: #0c0e12;--panel: #14171d;--panel-2: #10141b;--border: #232936;--border-soft: #1b212c;--text: #e8eaef;--muted: #8b93a3;--faint: #5d6575;--accent: #5b8cff;--accent-soft: rgba(91, 140, 255, .14);--green: #5fc7a6;--green-soft: rgba(95, 199, 166, .12);--amber: #e3a857;--red: #e06c6c;--red-soft: rgba(224, 108, 108, .12);--mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;--sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}.app{height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;height:52px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#161a21,#12151b);flex:none}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-mark{width:18px;height:18px;border-radius:5px;background:linear-gradient(135deg,var(--accent),var(--green));box-shadow:0 0 14px #5b8cff73;flex:none}.brand-name{font-weight:650;font-size:14.5px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.phase-chip{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 10px;white-space:nowrap;background:var(--panel-2)}.topbar-meta{display:flex;gap:8px;flex:none}.chip{font-size:11px;font-family:var(--mono);color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:3px 8px;background:var(--panel-2)}.chip-accent{color:var(--green);border-color:#5fc7a659;background:var(--green-soft)}.workspace{flex:1;display:grid;grid-template-columns:minmax(320px,380px) 1fr 1fr;gap:10px;padding:10px;min-height:0}.panel{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--panel);border:1px solid var(--border);border-radius:10px;overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-bottom:1px solid var(--border-soft);flex:none}.panel-head h2{margin:0;font-size:11px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.panel-tag{font-size:10.5px;color:var(--faint);font-family:var(--mono)}.json-panel{display:flex;flex-direction:column;flex:1;min-height:0}.json-editor{flex:1;min-height:0;resize:none;border:none;outline:none;padding:12px 14px;background:var(--panel-2);color:#c9d2e0;font-family:var(--mono);font-size:12px;line-height:1.55;-moz-tab-size:2;tab-size:2}.json-editor:focus-visible{box-shadow:inset 0 0 0 1.5px var(--accent)}.json-status{flex:none;max-height:180px;overflow-y:auto;padding:8px 12px;font-size:12px;border-top:1px solid var(--border-soft);color:var(--muted)}.json-status.tone-ok{color:var(--green);background:var(--green-soft)}.json-status.tone-error{color:var(--red);background:var(--red-soft)}.issue-list{margin:6px 0 0;padding-left:18px;color:var(--text)}.issue-list li{margin-bottom:3px;font-size:11.5px}.issue-list code{font-family:var(--mono);font-size:10.5px;color:var(--red);background:#e06c6c1f;border-radius:4px;padding:1px 5px;margin-right:6px}.json-actions{display:flex;align-items:center;gap:8px;padding:10px 12px;border-top:1px solid var(--border-soft);flex:none}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-family:var(--sans);font-size:12.5px;font-weight:550;border-radius:7px;padding:7px 13px;cursor:pointer;transition:border-color .12s,background .12s,opacity .12s}.btn:hover:not(:disabled){border-color:var(--faint)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent);color:#0b1020}.btn-primary:hover:not(:disabled){background:#6f9aff;border-color:#6f9aff}.btn kbd{font-family:var(--mono);font-size:10px;opacity:.7;margin-left:6px}.dirty-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);margin-left:auto;box-shadow:0 0 8px #e3a85799}.plan-surface{position:relative;flex:1;min-height:0;background-color:#10141b;background-image:radial-gradient(circle,#1e2430 1px,transparent 1px);background-size:22px 22px;background-position:11px 11px}.plan-surface canvas{position:absolute;top:0;right:0;bottom:0;left:0}.viewport-surface{position:relative;flex:1;min-height:0;background:#101319}.viewport-surface canvas{display:block}.empty-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:var(--faint);font-size:13px;pointer-events:none}.statusbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;padding:0 14px;border-top:1px solid var(--border);background:var(--panel-2);color:var(--faint);font-size:11.5px}.statusbar-right{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}