:root{--bg: #0f1115;--panel: #171a21;--border: #262a33;--text: #e6e8eb;--muted: #8b92a1;--accent: #4f8cff;--accent-hover: #3a75e0;--danger: #e5484d;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}button{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px}button:hover{background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{background:var(--panel);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:8px 10px;font-size:14px;width:100%}label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);margin-bottom:10px}.muted{color:var(--muted);font-size:13px}.error{color:var(--danger);font-size:13px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:8px}.sidebar .brand{font-weight:700;font-size:18px;margin-bottom:20px}.sidebar a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:6px}.sidebar a.active,.sidebar a:hover{background:var(--border)}.sidebar .logout{margin-top:auto;background:transparent;border:1px solid var(--border)}.content{flex:1;padding:32px;max-width:960px}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:32px;width:320px;display:flex;flex-direction:column;gap:4px}.login-card button{margin-top:12px}.filters{display:flex;gap:10px;margin-bottom:16px}.filters select{width:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:10px;border-bottom:1px solid var(--border);font-size:14px}.table .truncate{max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.table a{color:var(--accent)}.conversation-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}.ai-controls{position:relative;display:flex;align-items:center;gap:10px}.ai-badge{background:var(--panel);border:1px solid var(--border);border-radius:999px;padding:6px 12px;font-size:13px}.agent-picker-wrapper{position:relative}.agent-picker{position:absolute;right:0;top:calc(100% + 6px);background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:8px;display:flex;flex-direction:column;gap:6px;min-width:200px;z-index:10}.agent-picker button{background:transparent;color:var(--text);text-align:left}.agent-picker button:hover{background:var(--border)}.message-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.message{max-width:70%;padding:10px 14px;border-radius:10px;background:var(--panel);border:1px solid var(--border)}.message-lead{align-self:flex-start}.message-ai_agent,.message-human{align-self:flex-end;background:#1c2b4d;border-color:#2c3e6b}.message-sender{display:block;font-size:11px;color:var(--muted);margin-bottom:4px;text-transform:uppercase}.message p{margin:0}.reply-form{display:flex;gap:10px}.agent-form{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px;margin:20px 0;max-width:520px}.form-actions{display:flex;gap:10px}.agent-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}.agent-list li{display:flex;justify-content:space-between;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:12px 16px}.agent-list li.inactive{opacity:.5}.agent-list-actions{display:flex;gap:6px}