:root{--bg: #f6f8fb;--panel: #ffffff;--muted: #6b7280;--text: #111827;--accent: #2563eb;--accent-2: #16a34a;--border: #e5e7eb;--user-bubble: #3b82f6;--bot-bubble: #f3f4f6}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:48rem;margin:0 auto;padding:24px;min-height:100vh;display:flex;flex-direction:column}.container.center{display:flex;align-items:center;justify-content:center}.header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;padding:16px 20px;background:var(--panel);border-radius:16px;box-shadow:0 1px 3px #0000000d}.brand{font-weight:600;letter-spacing:-.01em;font-size:18px;color:var(--text)}.badge{padding:4px 10px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 1px 3px #0000000d}.character-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:20px;box-shadow:0 1px 3px #0000000d}.grid{display:grid;grid-template-columns:320px 1fr;gap:16px}.sidebar{padding:16px;display:flex;flex-direction:column;gap:12px}.label{color:var(--muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.select,.input,.textarea{width:100%;background:#fff;border:1px solid var(--border);color:var(--text);padding:12px 16px;border-radius:12px;outline:none;transition:all .2s;font-size:15px;font-family:inherit}.select:focus,.input:focus,.textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2563eb1a}.select{cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:40px}.button{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:12px 20px;font-weight:600;font-size:15px;cursor:pointer;transition:all .2s;font-family:inherit;white-space:nowrap}.button:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 6px #0000001a}.button:active{transform:translateY(0)}.button.secondary{background:#e5e7eb;color:var(--text);border:1px solid var(--border)}.button.secondary:hover{background:#d1d5db}.button.small{padding:8px 16px;font-size:14px}.button:disabled{opacity:.6;cursor:not-allowed;transform:none}.list{display:flex;flex-direction:column;gap:8px;max-height:320px;overflow:auto;padding-right:6px}.list-item{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff;transition:background .2s}.list-item:hover{background:#f0f2f5}.meta{font-size:12px;color:var(--muted)}.chat{flex:1;display:flex;flex-direction:column;min-height:0;background:var(--panel);border-radius:16px;border:1px solid var(--border);box-shadow:0 1px 3px #0000000d;overflow:hidden}.messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.messages::-webkit-scrollbar-thumb:hover{background:var(--muted)}.bubble{max-width:75%;padding:12px 16px;border-radius:18px;line-height:1.5;word-wrap:break-word;font-size:15px;animation:fadeIn .2s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.user{align-self:flex-end;background:var(--user-bubble);color:#fff;border-bottom-right-radius:4px;box-shadow:0 2px 4px #3b82f633}.bot{align-self:flex-start;background:var(--bot-bubble);border:1px solid var(--border);color:var(--text);border-bottom-left-radius:4px;box-shadow:0 1px 2px #0000000d}.composer{display:flex;gap:12px;padding:16px;border-top:1px solid var(--border);background:var(--panel);position:sticky;bottom:0;z-index:10}.hint{color:var(--muted);font-size:12px;margin-top:4px}.footer{margin-top:12px;color:var(--muted);font-size:12px;text-align:center}@media (max-width: 768px){.container{padding:12px;max-width:100%}.header{flex-wrap:wrap;padding:12px 16px;gap:8px}.brand{font-size:16px;width:100%;margin-bottom:8px}.grid{display:flex;flex-direction:column}.sidebar{width:100%;padding:12px}.chat{min-height:400px;max-height:calc(100vh - 200px)}.messages{padding:16px 12px;gap:12px}.bubble{max-width:85%;padding:10px 14px;font-size:14px}.select,.input,.textarea{font-size:16px;padding:12px 14px}.button{padding:12px 16px;font-size:14px}.composer{padding:12px;gap:8px}.character-card{padding:16px}}@media (max-width: 480px){.container{padding:8px}.header{padding:10px 12px}.bubble{max-width:90%}}