:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:#f5f6f8;color:#1a1a1a}a{color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:#14213d;color:#fff;padding:24px 16px;flex-shrink:0}.sidebar h1{font-size:18px;margin:0 0 24px}.sidebar nav a{display:block;padding:10px 12px;border-radius:6px;text-decoration:none;color:#cbd5e1;margin-bottom:4px;font-size:14px}.sidebar nav a.active,.sidebar nav a:hover{background:#1f2d55;color:#fff}.main-content{flex:1;padding:32px;max-width:960px}.card{background:#fff;border-radius:10px;padding:20px;box-shadow:0 1px 2px #0000000f;margin-bottom:20px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#444}.field input,.field textarea,.field select{width:100%;padding:8px 10px;border:1px solid #d7dae0;border-radius:6px;font-size:14px;font-family:inherit}.field textarea{min-height:160px;resize:vertical}button.primary{background:#14213d;color:#fff;border:none;padding:10px 16px;border-radius:6px;font-size:14px;cursor:pointer}button.primary:hover{background:#1f2d55}button.primary:disabled{opacity:.5;cursor:not-allowed}.agent-list-item{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #eee}.badge{font-size:11px;padding:2px 8px;border-radius:999px;background:#e5e7eb;color:#374151}.badge.active{background:#dcfce7;color:#166534}.badge.draft{background:#fef3c7;color:#92400e}.badge.paused{background:#f3f4f6;color:#6b7280}.simulator-chat{display:flex;flex-direction:column;height:480px;border:1px solid #eee;border-radius:8px;overflow:hidden}.simulator-messages{flex:1;overflow-y:auto;padding:16px;background:#ece5dd}.simulator-bubble{max-width:70%;padding:8px 12px;border-radius:10px;margin-bottom:8px;font-size:14px;line-height:1.4}.simulator-bubble.user{background:#d9fdd3;margin-left:auto}.simulator-bubble.model{background:#fff}.simulator-input{display:flex;gap:8px;padding:12px;background:#f0f0f0}.simulator-input input{flex:1;padding:10px;border-radius:6px;border:1px solid #ccc}