:root{--nova-bg:#0d1117;--nova-surface:#161b27;--nova-surface2:#1e2535;--nova-border:rgba(99,179,237,.15);--nova-accent:#63b3ed;--nova-text:#e2e8f0;--nova-text-muted:#7a8ba0;--nova-radius:20px;--nova-shadow:0 24px 64px rgba(0,0,0,.6),0 0 0 1px rgba(99,179,237,.1)}#nova-bubble{position:fixed;bottom:110px;right:28px;background:#1e2535;border:1px solid rgba(99,179,237,.3);border-radius:14px 14px 4px 14px;padding:10px 14px;font-size:12px;color:#a0b8d0;max-width:210px;line-height:1.4;z-index:9997;box-shadow:0 8px 24px rgba(0,0,0,.4);opacity:0;transform:translateY(6px) scale(.95);transition:opacity .3s,transform .3s;pointer-events:none}#nova-bubble.show{opacity:1;transform:translateY(0) scale(1)}#nova-bubble-dot{width:8px;height:8px;background:#63b3ed;border-radius:50%;display:inline-block;margin-right:6px;animation:nova-pulse 1.5s ease-in-out infinite}#nova-launcher{position:fixed;bottom:28px;right:28px;width:72px;height:72px;cursor:pointer;z-index:9998;filter:drop-shadow(0 0 14px rgba(99,179,237,.4));animation:nova-idle 3s ease-in-out infinite;transition:transform .2s cubic-bezier(.34,1.56,.64,1),filter .2s;-webkit-user-select:none;-moz-user-select:none;user-select:none}#nova-launcher:hover{transform:scale(1.15);filter:drop-shadow(0 0 22px rgba(99,179,237,.7));animation-play-state:paused}#nova-launcher.bounce{animation:nova-bounce .45s cubic-bezier(.36,.07,.19,.97)}#nova-launcher.hidden{display:none}#nova-eye-l,#nova-eye-r{animation:nova-blink 4s ease-in-out infinite}#nova-eye-r{animation-delay:.08s}#nova-arm{animation:nova-wave 3s ease-in-out infinite;transform-origin:54px 46px}#nova-window{position:fixed;bottom:112px;right:28px;width:380px;height:560px;background:var(--nova-bg);border:1px solid var(--nova-border);border-radius:var(--nova-radius);box-shadow:var(--nova-shadow);display:flex;flex-direction:column;z-index:9999;overflow:hidden;opacity:0;transform:translateY(16px) scale(.96);pointer-events:none;transition:opacity .3s cubic-bezier(.4,0,.2,1),transform .3s cubic-bezier(.34,1.56,.64,1)}#nova-window.open{opacity:1;transform:translateY(0) scale(1);pointer-events:all}#nova-header{background:linear-gradient(135deg,#0f1724,#1a2540);padding:16px 18px;gap:12px;border-bottom:1px solid var(--nova-border)}#nova-avatar,#nova-header{display:flex;align-items:center;flex-shrink:0}#nova-avatar{width:40px;height:40px;background:linear-gradient(135deg,#1a3a5c,#2d1b69);border-radius:12px;justify-content:center;border:1px solid rgba(99,179,237,.3)}#nova-avatar svg{width:26px;height:26px}#nova-header-info{flex:1}#nova-header-name{font-size:15px;font-weight:600;color:var(--nova-text);letter-spacing:.3px}#nova-header-status{font-size:11px;color:#4ade80;display:flex;align-items:center;gap:5px;margin-top:2px}#nova-status-dot{width:6px;height:6px;background:#4ade80;border-radius:50%;animation:nova-pulse 2s ease-in-out infinite}#nova-close{width:30px;height:30px;background:hsla(0,0%,100%,.05);border:1px solid hsla(0,0%,100%,.1);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--nova-text-muted);font-size:16px;flex-shrink:0;transition:background .2s,color .2s}#nova-close:hover{background:hsla(0,0%,100%,.1);color:var(--nova-text)}#nova-messages{flex:1;overflow-y:auto;padding:18px 14px;display:flex;flex-direction:column;gap:12px;scroll-behavior:smooth}#nova-messages::-webkit-scrollbar{width:4px}#nova-messages::-webkit-scrollbar-thumb{background:rgba(99,179,237,.2);border-radius:4px}.nova-msg{display:flex;flex-direction:column;max-width:88%;animation:nova-msg-in .25s ease}.nova-msg.user{align-self:flex-end;align-items:flex-end}.nova-msg.bot{align-self:flex-start;align-items:flex-start}.nova-bubble{padding:10px 14px;border-radius:16px;font-size:13.5px;line-height:1.55;color:var(--nova-text)}.nova-msg.bot .nova-bubble{background:var(--nova-surface2);border:1px solid var(--nova-border);border-bottom-left-radius:4px}.nova-msg.user .nova-bubble{background:linear-gradient(135deg,#1a3a5c,#1e3a6e);border:1px solid rgba(99,179,237,.25);border-bottom-right-radius:4px;color:#c8dff5}.nova-msg-time{font-size:10px;color:var(--nova-text-muted);margin-top:4px;padding:0 4px}#nova-typing{display:none;align-self:flex-start;padding:12px 16px;background:var(--nova-surface2);border:1px solid var(--nova-border);border-radius:16px;border-bottom-left-radius:4px;gap:5px;align-items:center}#nova-typing.show{display:flex}.nova-dot{width:6px;height:6px;background:var(--nova-accent);border-radius:50%;animation:nova-typing-dot 1.2s ease-in-out infinite}.nova-dot:nth-child(2){animation-delay:.2s}.nova-dot:nth-child(3){animation-delay:.4s}#nova-input-area{padding:12px 14px;border-top:1px solid var(--nova-border);display:flex;gap:8px;align-items:flex-end;flex-shrink:0;background:var(--nova-surface)}#nova-input{flex:1;background:var(--nova-surface2);border:1px solid var(--nova-border);border-radius:12px;padding:10px 14px;color:var(--nova-text);font-size:13.5px;outline:none;resize:none;min-height:40px;max-height:100px;line-height:1.4;font-family:inherit;transition:border-color .2s}#nova-input:focus{border-color:var(--nova-accent)}#nova-input::-moz-placeholder{color:var(--nova-text-muted)}#nova-input::placeholder{color:var(--nova-text-muted)}#nova-send{width:40px;height:40px;background:linear-gradient(135deg,#2563eb,#7c3aed);border:none;border-radius:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .2s,transform .1s}#nova-send:hover{opacity:.9;transform:scale(1.05)}#nova-send svg{width:18px;height:18px;fill:#fff}#nova-powered{text-align:center;font-size:10px;color:var(--nova-text-muted);padding:6px 0 10px;flex-shrink:0;opacity:.5;letter-spacing:.5px}@keyframes nova-idle{0%,to{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-6px) rotate(1deg)}}@keyframes nova-bounce{0%{transform:scale(1) translateY(0)}20%{transform:scale(.88) translateY(4px)}50%{transform:scale(1.22) translateY(-12px)}75%{transform:scale(.95) translateY(2px)}to{transform:scale(1) translateY(0)}}@keyframes nova-blink{0%,92%,to{transform:scaleY(1)}95%{transform:scaleY(.08)}}@keyframes nova-wave{0%,to{transform:rotate(0deg)}30%{transform:rotate(-18deg)}60%{transform:rotate(10deg)}}@keyframes nova-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}@keyframes nova-msg-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes nova-typing-dot{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}@media (max-width:440px){#nova-window{width:calc(100vw - 16px);right:8px;bottom:96px;height:70vh}#nova-launcher{bottom:16px;right:16px}#nova-bubble{right:16px;bottom:100px}}