:root{color-scheme:light;--bg:#f7f7f5;--panel:#ffffff;--line:#d9ded7;--text:#20231f;--muted:#667064;--primary:#0f766e;--primary-strong:#115e59;--danger:#b42318;--warning:#9a6700;--ok:#18794e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}button,input,textarea{font:inherit}button{border:0;border-radius:6px;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit;text-decoration:none}.screen-center{min-height:100vh;display:grid;place-items:center;padding:24px}.login-panel{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:28px}.login-panel h1,.page-title{margin:0 0 8px;font-size:24px}.muted{color:var(--muted)}.field{display:grid;grid-gap:6px;gap:6px;margin-top:16px}.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:11px 12px;background:#fff;color:var(--text)}.field textarea{min-height:78px;resize:vertical}.primary-button{width:100%;margin-top:18px;padding:12px 14px;background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-strong)}.secondary-button{padding:9px 12px;background:#eef4f2;color:var(--primary-strong);border:1px solid #c6d8d3}.danger-button{padding:9px 12px;background:#fff0ee;color:var(--danger);border:1px solid #f3c8c2}.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{height:58px;justify-content:space-between;gap:16px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--panel)}.topbar,.topbar nav{display:flex;align-items:center}.topbar nav{gap:12px}.content{width:min(1180px,100%);margin:0 auto;padding:24px}.cards-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px;margin:20px 0}.metric-card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px}.metric-card{padding:16px}.metric-value{display:block;margin-top:8px;font-size:28px;font-weight:700}.conversation-row{display:grid;grid-gap:4px;gap:4px;width:100%;text-align:left;padding:12px;background:transparent;border-bottom:1px solid var(--line);border-radius:0}.conversation-row.active{background:#eef8f6}.conversation-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:12px}.inbox-layout{height:calc(100vh - 106px);display:grid;grid-template-columns:minmax(260px,340px) 1fr;grid-gap:16px;gap:16px}.conversation-list,.conversation-view{min-height:0;overflow:hidden}.conversation-list-body,.messages-scroll{height:100%;overflow:auto}.conversation-view{display:grid;grid-template-rows:auto 1fr auto}.conversation-header,.list-header,.send-box{padding:14px;border-bottom:1px solid var(--line);background:var(--panel)}.send-box{border-top:1px solid var(--line);border-bottom:0}.handoff-controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.messages-scroll{padding:16px;display:grid;align-content:start;grid-gap:10px;gap:10px}.bubble{max-width:min(680px,78%);border:1px solid var(--line);border-radius:8px;padding:10px 12px;background:#fff}.bubble.outbound{margin-left:auto;background:#eaf7f3;border-color:#c5e2d9}.bubble-meta{margin-top:6px;color:var(--muted);font-size:12px}.status-badge{display:inline-flex;align-items:center;min-height:26px;padding:4px 8px;border-radius:999px;font-size:12px;font-weight:700;background:#eef4f2;color:var(--primary-strong)}.status-badge.human_handoff,.status-badge.paused{background:#fff8e5;color:var(--warning)}.status-badge.disabled{background:#fff0ee;color:var(--danger)}.error{margin-top:12px;color:var(--danger)}.empty-state{display:grid;place-items:center;min-height:220px;color:var(--muted)}@media (max-width:820px){.cards-grid,.inbox-layout{grid-template-columns:1fr}.inbox-layout{height:auto}.conversation-list,.conversation-view{min-height:360px}.topbar{align-items:flex-start;height:auto;flex-direction:column;padding:14px 16px}}