:root{--ink: #0b0e14;--ink-2: #141a22;--panel: rgba(20, 26, 34, .72);--line: rgba(255, 255, 255, .08);--text: #e8edf3;--text-dim: #9aa4b1;--gold: #f0b429;--gold-deep: #c98a0c;--paper: #fdf6e3;--paper-line: rgba(0, 0, 0, .08);--radius: 16px;--serif: Georgia, "Times New Roman", serif;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--sans);color:var(--text);background:radial-gradient(1100px 600px at 85% -10%,rgba(240,180,41,.14),transparent 60%),radial-gradient(1000px 700px at -10% 110%,rgba(90,140,220,.12),transparent 60%),linear-gradient(180deg,#0a0d13 0%,var(--ink) 100%);background-attachment:fixed}.page{height:100vh;display:flex;flex-direction:column;max-width:920px;margin:0 auto;padding:0 16px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 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12px}.chat::-webkit-scrollbar{width:8px}.chat::-webkit-scrollbar-thumb{background:#ffffff24;border-radius:4px}.messages{display:flex;flex-direction:column;gap:16px}.msg{display:flex;gap:10px;animation:rise .25s ease both}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg.user{justify-content:flex-end}.avatar{flex-shrink:0;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;font-size:17px;background:linear-gradient(135deg,var(--ink-2),#1c2430);border:1px solid var(--line)}.bubble{max-width:min(78%,640px);padding:13px 16px;border-radius:var(--radius);line-height:1.55;font-size:14.5px;white-space:pre-wrap}.msg.user .bubble{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#241a02;border-bottom-right-radius:4px;font-weight:500}.msg.assistant .bubble{background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom-left-radius:4px}.bubble-text{white-space:pre-wrap}.typing{display:inline-flex;align-items:center;gap:5px;min-height:34px}.typing span{width:8px;height:8px;border-radius:50%;background:var(--text-dim);animation:bounce 1.2s infinite ease-in-out}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,to{transform:translateY(0);opacity:.4}50%{transform:translateY(-5px);opacity:1}}.books{display:grid;gap:12px;margin-top:14px}.book{background:var(--paper);color:#2b2413;border-radius:12px;padding:14px 16px;border-left:4px solid var(--gold);box-shadow:0 4px 14px #00000059}.book-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.book-top h4{margin:0;font-family:var(--serif);font-size:17px}.book-rating{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;white-space:nowrap}.stars{letter-spacing:1px}.stars-full{color:var(--gold-deep)}.stars-empty{color:#00000038}.book-meta{margin-top:3px;font-size:12.5px;color:#6b6045}.book-meta .sep{margin:0 6px;opacity:.6}.book-desc{margin:9px 0 0;font-size:13.5px;line-height:1.5}.book-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.tag{font-size:11.5px;padding:3px 9px;border-radius:999px;background:#f0b42929;border:1px solid rgba(201,138,12,.35);color:#7a5206;font-weight:500}.welcome{margin:auto;text-align:center;max-width:560px;padding:32px 8px;animation:rise .4s ease both}.welcome-emoji{font-size:52px}.welcome h2{font-family:var(--serif);font-size:28px;margin:14px 0 8px}.welcome p{color:var(--text-dim);font-size:14.5px;line-height:1.6;margin:0 auto 22px}.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:9px}.chip{font:inherit;font-size:13px;padding:8px 14px;border-radius:999px;border:1px solid rgba(240,180,41,.4);background:#f0b42912;color:#f5cf79;cursor:pointer;transition:all .15s ease}.chip:hover{background:#f0b42929;border-color:var(--gold);transform:translateY(-1px)}.composer{padding:10px 4px 16px}.composer-inner{display:flex;align-items:flex-end;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 8px 8px 16px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:border-color .15s ease}.composer-inner:focus-within{border-color:#f0b42980}.composer textarea{flex:1;background:transparent;border:none;outline:none;resize:none;color:var(--text);font:inherit;font-size:14.5px;line-height:1.5;max-height:140px;padding:6px 0}.composer textarea::placeholder{color:var(--text-dim)}.send{width:40px;height:40px;flex-shrink:0;border:none;border-radius:10px;background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#241a02;font-size:17px;cursor:pointer;transition:transform .12s ease,opacity .12s ease}.send:hover:not(:disabled){transform:scale(1.06)}.send:disabled{opacity:.4;cursor:default}.hint{margin:8px 4px 0;font-size:11.5px;color:var(--text-dim)}@media (max-width: 640px){.bubble{max-width:86%}.welcome h2{font-size:23px}.brand h1{font-size:20px}.mode-pill{font-size:11px;padding:6px 10px}}