:root{--bg: #f5f7fb;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--brand: #4f46e5;--brand-dark: #4338ca;--user: #4f46e5;--user-text: #ffffff;--assistant: #f1f5f9;--danger: #dc2626;--ok: #16a34a;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:Inter,Segoe UI,system-ui,-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif;background:linear-gradient(180deg,#f8fafc,#eef2ff);color:var(--text)}.app{display:flex;flex-direction:column;height:100%;max-width:880px;margin:0 auto;padding:12px;gap:10px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.title{display:flex;flex-direction:column;line-height:1.2}.title strong{font-size:1.05rem}.sub{font-size:.75rem;color:var(--muted)}.controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.toggle{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;color:var(--text);cursor:pointer;user-select:none}.toggle input{accent-color:var(--brand);width:16px;height:16px}.badge{font-size:.72rem;font-weight:600;padding:3px 9px;border-radius:999px;background:#e2e8f0;color:#475569;white-space:nowrap}.badge.ready{background:#dcfce7;color:#15803d}.badge.generating{background:#e0e7ff;color:#4338ca}.badge.loading{background:#fef9c3;color:#a16207}.badge.error{background:#fee2e2;color:#b91c1c}button{font:inherit;border-radius:8px;border:1px solid transparent;padding:8px 16px;cursor:pointer;font-weight:600;font-size:.86rem}button.primary{background:var(--brand);color:#fff}button.primary:hover:not(:disabled){background:var(--brand-dark)}button.stop{background:var(--danger);color:#fff}button:disabled{opacity:.55;cursor:not-allowed}.banner{padding:10px 12px;border-radius:8px;font-size:.85rem}.banner.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.banner.warn{background:#fef9c3;color:#854d0e;border:1px solid #fde68a}.loadbar{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:10px 12px}.loadbar-text{font-size:.78rem;color:var(--muted);margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.track{height:6px;border-radius:999px;background:#e2e8f0;overflow:hidden}.fill{height:100%;background:linear-gradient(90deg,#6366f1,#4f46e5);transition:width .2s ease}.messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:14px;padding:8px 2px}.empty{margin:auto;text-align:center;color:var(--muted);font-size:.9rem;max-width:460px}.empty .hint{font-size:.8rem;margin-top:8px}.msg{display:flex;flex-direction:column;gap:6px;max-width:92%}.msg.user{align-self:flex-end;align-items:flex-end}.msg.assistant{align-self:flex-start;align-items:flex-start}.bubble{padding:10px 14px;border-radius:14px;font-size:.92rem;line-height:1.55;white-space:pre-wrap;word-break:break-word}.msg.user .bubble{background:var(--user);color:var(--user-text);border-bottom-right-radius:4px}.msg.assistant .bubble{background:var(--assistant);color:var(--text);border-bottom-left-radius:4px}.searching{display:inline-block;color:var(--muted);font-size:.85rem}.cursor{display:inline-block;animation:blink 1s step-start infinite;color:var(--brand)}@keyframes blink{50%{opacity:0}}.sources{list-style:none;margin:0;padding:8px 10px;background:var(--panel);border:1px solid var(--border);border-radius:10px;font-size:.8rem;display:flex;flex-direction:column;gap:6px;width:100%}.sources li{line-height:1.4}.sources a{color:var(--brand-dark);text-decoration:none}.sources a:hover{text-decoration:underline}.src-index{color:var(--muted);font-weight:600}.src-host{color:var(--muted);margin-left:6px;font-size:.72rem}.msg-error{font-size:.78rem;color:var(--danger)}.composer{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:8px}.composer textarea{font:inherit;resize:none;border:none;outline:none;padding:8px;font-size:.92rem;line-height:1.4;max-height:160px;background:transparent;color:var(--text)}@media(max-width:640px){.app{padding:8px}.msg{max-width:100%}}