:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#0f172a;background:#eef2ff}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}.page{min-height:100vh;padding:24px;background:linear-gradient(180deg,#eef2ff,#f8fafc)}.chat-shell{max-width:980px;margin:0 auto;background:#fff;border-radius:24px;box-shadow:0 20px 60px #0f172a1a;overflow:hidden}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:24px;border-bottom:1px solid #e2e8f0}.chat-header h1{margin:0 0 6px;font-size:1.6rem}.chat-header p{margin:0;color:#475569}.secondary{background:#e2e8f0;color:#0f172a}.session-box{margin:16px 24px 0;padding:12px 16px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;display:flex;flex-direction:column;gap:6px}.label{font-size:.75rem;color:#64748b;text-transform:uppercase;letter-spacing:.08em}.messages{min-height:420px;max-height:62vh;overflow-y:auto;padding:24px}.empty-state{height:100%;display:grid;place-items:center;color:#64748b}.message-row{display:flex;margin-bottom:18px}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{max-width:78%;padding:14px 16px;border-radius:20px;white-space:pre-wrap;line-height:1.5}.message-bubble.user{background:#dbeafe}.message-bubble.assistant{background:#f1f5f9}.message-type{font-size:.75rem;font-weight:700;margin-bottom:8px;text-transform:uppercase;letter-spacing:.05em;color:#475569}.message-text{color:#0f172a}.message-section{margin-top:14px;padding-top:12px;border-top:1px solid rgba(148,163,184,.35);display:flex;flex-direction:column;gap:8px}.message-section ul{margin:0;padding-left:18px}.message-section li{display:flex;flex-direction:column;gap:2px}.message-section small{color:#64748b;word-break:break-all}.memory-box span{font-size:.95rem}.error-box{margin:0 24px 16px;padding:12px 14px;border-radius:12px;background:#fee2e2;color:#991b1b}.composer{display:flex;gap:12px;padding:20px 24px 24px;border-top:1px solid #e2e8f0}.composer textarea{flex:1;resize:vertical;min-height:72px;border:1px solid #cbd5e1;border-radius:16px;padding:14px;outline:none}.composer textarea:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f124}button{border:none;border-radius:16px;padding:0 20px;background:#4f46e5;color:#fff;font-weight:700;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}@media (max-width: 768px){.page{padding:12px}.chat-header,.composer{flex-direction:column;align-items:stretch}.message-bubble{max-width:100%}}