*{box-sizing:border-box}.chat-container{display:flex;flex-direction:column;height:100vh;max-width:900px;margin:0 auto;background:linear-gradient(135deg,#f5f7fa,#e4e8ec);font-family:Segoe UI,-apple-system,BlinkMacSystemFont,Roboto,sans-serif}.chat-header{background:linear-gradient(135deg,#1e3a5f,#2d5a87);color:#fff;padding:20px 30px;text-align:center;box-shadow:0 4px 20px #00000026;position:relative}.chat-header h1{margin:0;font-size:1.8rem;font-weight:600;letter-spacing:.5px;display:flex;align-items:center;justify-content:center;gap:12px}.chat-header h1:before{content:"🏛️";font-size:2rem}.chat-header p{margin:8px 0 0;opacity:.9;font-size:.95rem;font-weight:300}.new-chat-btn{position:absolute;right:20px;top:50%;transform:translateY(-50%);background:#ffffff26;border:1px solid rgba(255,255,255,.3);color:#fff;padding:10px 18px;border-radius:25px;cursor:pointer;font-size:.85rem;font-weight:500;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.new-chat-btn:hover{background:#ffffff40;border-color:#ffffff80;transform:translateY(-50%) scale(1.02)}.messages{flex:1;overflow-y:auto;padding:30px;display:flex;flex-direction:column;gap:20px;scroll-behavior:smooth}.welcome-message{text-align:center;padding:60px 40px;background:#fff;border-radius:20px;box-shadow:0 4px 25px #00000014;max-width:600px;margin:auto}.welcome-message h2{color:#1e3a5f;font-size:1.5rem;margin-bottom:15px}.welcome-message p{color:#5a6c7d;font-size:1.05rem;line-height:1.7;margin:10px 0}.welcome-message .example{background:linear-gradient(135deg,#f0f4f8,#e8eef3);padding:15px 25px;border-radius:12px;margin-top:25px;border-left:4px solid #2d5a87}.welcome-message .example p{color:#3d5a73;font-style:italic;margin:0}.message{display:flex;animation:fadeInUp .4s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-content{max-width:75%;padding:18px 24px;border-radius:20px;line-height:1.6;font-size:1rem;position:relative}.message.user .message-content{background:linear-gradient(135deg,#2d5a87,#1e3a5f);color:#fff;border-bottom-right-radius:6px;box-shadow:0 4px 15px #2d5a874d}.message.assistant .message-content{background:#fff;color:#2c3e50;border-bottom-left-radius:6px;box-shadow:0 4px 15px #00000014;border:1px solid rgba(0,0,0,.05)}.message-content p{margin:0;padding:3px 0}.message-content p:empty{display:none}.message.assistant .message-content .hs-result{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-radius:12px;padding:15px 20px;margin:10px 0;border-left:4px solid #4caf50}.message-content.loading{display:flex;align-items:center;gap:12px;color:#5a6c7d}.message-content.loading:before{content:"";width:20px;height:20px;border:3px solid #e0e0e0;border-top-color:#2d5a87;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.input-form{display:flex;gap:15px;padding:25px 30px;background:#fff;border-top:1px solid rgba(0,0,0,.08);box-shadow:0 -4px 20px #0000000d}.input-form input{flex:1;padding:18px 25px;border:2px solid #e0e5ea;border-radius:30px;font-size:1rem;transition:all .3s ease;background:#f8fafc}.input-form input:focus{outline:none;border-color:#2d5a87;background:#fff;box-shadow:0 0 0 4px #2d5a871a}.input-form input::placeholder{color:#9ca3af}.input-form input:disabled{background:#f3f4f6;cursor:not-allowed}.input-form button{padding:18px 35px;background:linear-gradient(135deg,#2d5a87,#1e3a5f);color:#fff;border:none;border-radius:30px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #2d5a874d;display:flex;align-items:center;gap:8px}.input-form button:after{content:"→";font-size:1.2rem;transition:transform .3s ease}.input-form button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 25px #2d5a8766}.input-form button:hover:not(:disabled):after{transform:translate(4px)}.input-form button:active:not(:disabled){transform:translateY(0)}.input-form button:disabled{background:#94a3b8;cursor:not-allowed;box-shadow:none}.messages::-webkit-scrollbar{width:8px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}.messages::-webkit-scrollbar-thumb:hover{background:#94a3b8}@media (max-width: 768px){.chat-header{padding:15px 20px}.chat-header h1{font-size:1.4rem}.chat-header h1:before{font-size:1.6rem}.chat-header p{font-size:.85rem}.new-chat-btn{position:static;transform:none;margin-top:12px;padding:8px 16px;font-size:.8rem}.messages{padding:20px 15px;gap:15px}.message-content{max-width:88%;padding:14px 18px;font-size:.95rem}.welcome-message{padding:40px 25px}.welcome-message h2{font-size:1.3rem}.input-form{padding:15px;gap:10px}.input-form input{padding:15px 20px;font-size:.95rem}.input-form button{padding:15px 25px;font-size:.95rem}}@media (max-width: 480px){.chat-header h1{font-size:1.2rem}.message-content{max-width:92%;padding:12px 16px}.input-form button span{display:none}.input-form button:after{margin:0}}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;width:100%}body{font-family:Segoe UI,-apple-system,BlinkMacSystemFont,Roboto,Oxygen,Ubuntu,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}#root{display:flex;justify-content:center;align-items:center;padding:20px}@media (max-width: 768px){#root{padding:0}.chat-container{border-radius:0!important;height:100vh!important;max-height:100vh!important}}@media (min-width: 769px){.chat-container{height:90vh;max-height:800px;border-radius:20px;overflow:hidden;box-shadow:0 25px 80px #0000004d}}