:root{--bg: #0b1020;--panel: #131a31;--panel-2: #1a2240;--border: #243056;--text: #e6e9f5;--muted: #8b94b8;--accent: #7c3aed;--accent-2: #06b6d4;--user-bubble: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);--agent-bubble: #1d2748;--error: #f87171;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;background:radial-gradient(ellipse at top,#1a2240 0%,var(--bg) 60%);color:var(--text)}.app{display:flex;flex-direction:column;height:100vh;max-width:880px;margin:0 auto;padding:24px 16px}.header{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:16px}.header .avatar{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;font-weight:700;font-size:18px}.header .titles h1{font-size:18px;margin:0;letter-spacing:.2px}.header .titles p{margin:2px 0 0;font-size:12px;color:var(--muted)}.header .status{margin-left:auto;font-size:12px;padding:4px 10px;border-radius:999px;background:var(--panel-2);color:var(--muted);border:1px solid var(--border)}.header .status.live{color:#34d399;border-color:#34d39966}.header .status.error{color:var(--error);border-color:#f8717166}.messages{flex:1;overflow-y:auto;padding:8px 4px 16px;display:flex;flex-direction:column;gap:10px}.empty{margin:auto;text-align:center;color:var(--muted);max-width:360px}.empty button{margin-top:16px}.bubble{max-width:78%;padding:10px 14px;border-radius:14px;line-height:1.45;font-size:14px;white-space:pre-wrap;word-wrap:break-word}.bubble.user{align-self:flex-end;background:var(--user-bubble);border-bottom-right-radius:4px}.bubble.agent{align-self:flex-start;background:var(--agent-bubble);border:1px solid var(--border);border-bottom-left-radius:4px}.bubble.error{align-self:stretch;background:#f871711a;border:1px solid rgba(248,113,113,.4);color:var(--error);font-size:13px}.bubble.typing{align-self:flex-start;color:var(--muted);font-style:italic;background:transparent;border:none}.composer{display:flex;gap:8px;padding-top:12px;border-top:1px solid var(--border)}.composer textarea{flex:1;resize:none;min-height:44px;max-height:160px;padding:10px 12px;border-radius:10px;background:var(--panel);border:1px solid var(--border);color:var(--text);font:inherit;outline:none}.composer textarea:focus{border-color:var(--accent)}button{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;padding:10px 18px;border-radius:10px;font-weight:600;cursor:pointer;transition:transform .06s ease,opacity .2s ease}button:disabled{opacity:.5;cursor:not-allowed}button:not(:disabled):active{transform:translateY(1px)}button.ghost{background:var(--panel-2);color:var(--muted);border:1px solid var(--border)}