:root{--bg: #0f1115;--panel: #171a21;--panel-2: #1f232c;--border: #2a2f3a;--text: #e7e9ee;--text-dim: #9aa2b1;--accent: #6d8cff;--accent-2: #4bd39a;--danger: #ef5b5b;--warn: #e0a84e;--radius: 10px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text)}a{color:inherit}button{font-family:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);padding:6px 12px;font-size:13px}button:hover{border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#0b0d12;font-weight:600}button.danger{border-color:var(--danger);color:var(--danger);background:transparent}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font-family:inherit;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:6px 10px;font-size:13px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}.app-shell{display:flex;height:100vh}.sidebar{width:200px;background:var(--panel);border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex-shrink:0}.brand{font-weight:700;font-size:16px;padding:0 8px 16px;color:var(--text)}.brand small{display:block;font-weight:400;color:var(--text-dim);font-size:11px;margin-top:2px}.nav-link{display:block;padding:8px 10px;border-radius:8px;color:var(--text-dim);text-decoration:none;font-size:14px}.nav-link.active,.nav-link:hover{background:var(--panel-2);color:var(--text)}.main{flex:1;overflow:auto;padding:24px 28px}.page-title{font-size:20px;font-weight:700;margin-bottom:4px}.page-subtitle{color:var(--text-dim);font-size:13px;margin-bottom:20px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px}.card-title{font-size:14px;font-weight:600;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;color:var(--text-dim);font-weight:500;padding:6px 8px;border-bottom:1px solid var(--border)}td{padding:8px;border-bottom:1px solid var(--border);vertical-align:top}tr:last-child td{border-bottom:none}.mono{font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px;color:var(--text-dim)}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row.form{gap:8px;margin-bottom:12px}.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:var(--panel-2);border:1px solid var(--border)}.tag.green{color:var(--accent-2);border-color:var(--accent-2)}.tag.red{color:var(--danger);border-color:var(--danger)}.tag.blue{color:var(--accent);border-color:var(--accent)}.tag.gray{color:var(--text-dim)}.copy-btn{font-size:11px;padding:2px 8px}.empty{color:var(--text-dim);font-size:13px;padding:12px 0}.error-banner{background:#ef5b5b1a;border:1px solid var(--danger);color:var(--danger);padding:8px 12px;border-radius:8px;margin-bottom:12px;font-size:13px}.simulator{display:grid;grid-template-columns:260px 1fr 240px;gap:16px;height:calc(100vh - 48px)}.thread-list,.thread-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:auto;padding:12px}.thread-item{padding:8px;border-radius:8px;cursor:pointer;font-size:13px;margin-bottom:2px}.thread-item:hover{background:var(--panel-2)}.thread-item.active{background:var(--panel-2);border:1px solid var(--accent)}.chat-area{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.chat-header{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.bubble{max-width:60%;padding:8px 12px;border-radius:12px;font-size:13px;line-height:1.4;white-space:pre-wrap;word-break:break-word}.bubble.outbound{align-self:flex-end;background:var(--accent);color:#0b0d12;border-bottom-right-radius:2px}.bubble.inbound{align-self:flex-start;background:var(--panel-2);border-bottom-left-radius:2px}.bubble .meta{font-size:10px;opacity:.7;margin-top:4px;display:flex;gap:6px;justify-content:flex-end}.bubble.inbound .meta{justify-content:flex-start}.chat-input{border-top:1px solid var(--border);padding:10px;display:flex;gap:8px}.chat-input input{flex:1}.empty-state{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-dim);font-size:13px}.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}.toggle-row:last-child{border-bottom:none}.json-view{background:#0b0d12;border:1px solid var(--border);border-radius:8px;padding:10px;font-family:SF Mono,Menlo,Consolas,monospace;font-size:11px;white-space:pre-wrap;word-break:break-word;max-height:320px;overflow:auto}.tabs{display:flex;gap:4px;margin-bottom:16px;border-bottom:1px solid var(--border)}.tab{padding:8px 14px;font-size:13px;color:var(--text-dim);cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-bottom-color:var(--accent)}