@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";:root{--primary-color: #30A3AE;--primary-hover: #268992;--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);--text-dark: #0f172a;--text-light: #64748b;--white: #ffffff;--border-color: rgba(226, 232, 240, .8);--user-msg-bg: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);--assistant-msg-bg: #ffffff;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .025);--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(255, 255, 255, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg-gradient);color:var(--text-dark);line-height:1.6;height:100vh;display:flex;flex-direction:column;overflow:hidden}#root{height:100%;display:flex;flex-direction:column}.app-container{display:flex;flex-direction:column;height:100vh;width:100%;background:transparent}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 40px;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);z-index:10}.header-brand{display:flex;align-items:center;gap:12px;font-weight:600;font-size:1.25rem;color:var(--primary-color);letter-spacing:-.01em}.brand-logo{height:32px;width:auto;object-fit:contain;transition:transform .3s ease}.brand-logo:hover{transform:scale(1.05)}.new-chat-btn{display:flex;align-items:center;gap:8px;padding:10px 20px;background-color:var(--white);color:var(--primary-color);border:1px solid rgba(48,163,174,.3);border-radius:999px;font-size:.875rem;font-weight:500;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.4,0,.2,1)}.new-chat-btn:hover{background-color:var(--primary-color);color:var(--white);border-color:var(--primary-color);box-shadow:var(--shadow-md);transform:translateY(-1px)}.new-chat-btn:active{transform:translateY(0)}.chat-container{flex:1;overflow-y:auto;padding:40px 20px;display:flex;flex-direction:column;gap:32px;scroll-behavior:smooth;margin:0 auto;width:100%;max-width:1000px}.chat-container::-webkit-scrollbar{width:6px}.chat-container::-webkit-scrollbar-track{background:transparent}.chat-container::-webkit-scrollbar-thumb{background:rgba(15,23,42,.1);border-radius:10px}.message-wrapper{display:flex;gap:20px;max-width:85%;animation:fadeIn .4s cubic-bezier(.4,0,.2,1)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-wrapper.user{align-self:flex-end;flex-direction:row-reverse}.message-wrapper.assistant{align-self:flex-start}.avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:600;font-size:.95rem;color:var(--white);box-shadow:var(--shadow-sm)}.avatar.user{background:linear-gradient(135deg,#475569 0%,#1e293b 100%)}.avatar.assistant{background:linear-gradient(135deg,var(--primary-color) 0%,#1c7a82 100%)}.message-bubble{padding:16px 24px;border-radius:20px;font-size:1rem;box-shadow:var(--shadow-sm);word-wrap:break-word;line-height:1.6}.message-bubble p{margin-bottom:.75em}.message-bubble p:last-child{margin-bottom:0}.message-bubble ul,.message-bubble ol{margin-bottom:.75em;padding-left:24px}.message-bubble ul:last-child,.message-bubble ol:last-child{margin-bottom:0}.message-bubble li{margin-bottom:.35em}.message-wrapper.user .message-bubble{background:var(--user-msg-bg);color:var(--text-dark);border-bottom-right-radius:4px;border:1px solid var(--white)}.message-wrapper.assistant .message-bubble{background:var(--assistant-msg-bg);border:1px solid var(--border-color);border-bottom-left-radius:4px}.typing-indicator{display:flex;gap:6px;padding:18px 24px;align-items:center}.typing-dot{width:8px;height:8px;border-radius:50%;background-color:var(--primary-color);animation:typing 1.4s infinite ease-in-out both;opacity:.7}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.input-container{padding:24px 40px;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border-color)}.input-form{display:flex;gap:12px;position:relative;max-width:1000px;margin:0 auto}.chat-input{flex:1;padding:18px 104px 18px 24px;border:1px solid var(--border-color);border-radius:999px;font-size:1.05rem;outline:none;transition:all .3s ease;font-family:inherit;resize:none;background-color:var(--white);box-shadow:var(--shadow-sm);color:var(--text-dark)}.chat-input::placeholder{color:#94a3b8}.chat-input:focus{border-color:#30a3ae66;box-shadow:0 0 0 4px #30a3ae1a,var(--shadow-sm)}.send-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,var(--primary-color) 0%,#1c7a82 100%);color:var(--white);border:none;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.send-btn:hover:not(:disabled){transform:translateY(-50%) scale(1.05);box-shadow:var(--shadow-md)}.send-btn:active:not(:disabled){transform:translateY(-50%) scale(.95)}.send-btn:disabled{background:#cbd5e1;cursor:not-allowed;box-shadow:none}.attachment-btn{position:absolute;right:60px;top:50%;transform:translateY(-50%);background:transparent;color:var(--text-light);border:none;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;border-radius:50%}.attachment-btn:hover:not(:disabled){color:var(--primary-color);background:rgba(48,163,174,.1)}.attachment-btn:disabled{opacity:.5;cursor:not-allowed}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:spin 1s linear infinite}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-light);text-align:center;animation:fadeIn .8s ease-out}.empty-state-logo{max-width:240px;height:auto;margin-bottom:32px;filter:drop-shadow(0 10px 25px rgba(0,0,0,.08));transition:transform .5s cubic-bezier(.4,0,.2,1)}.empty-state-logo:hover{transform:translateY(-5px)}.empty-state h2{color:var(--text-dark);margin-bottom:12px;font-weight:600;font-size:2.25rem;letter-spacing:-.02em}.empty-state p{font-size:1.15rem;max-width:450px;line-height:1.6;color:#475569}