:root{--bg-color: #0f172a;--chat-bg: #1e293b;--primary-color: #8b5cf6;--primary-hover: #7c3aed;--text-color: #ffffff;--text-secondary: #cbd5e1;--bubble-user: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);--bubble-bot: #334155;--border-color: #334155;--shadow-color: rgba(0, 0, 0, .3);--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif}body{margin:0;padding:0;font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100vh;overflow:hidden}#root{height:100%;display:flex;flex-direction:column}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.app{display:flex;flex-direction:column;height:100vh;width:100%}.main-container{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative}.welcome-message{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center}.welcome-message h1{font-size:3rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),#6366f1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.welcome-message p{font-size:1.25rem;color:var(--text-secondary)}.header{background:linear-gradient(135deg,#667eea,#764ba2);padding:1rem 2rem;box-shadow:0 2px 10px #0000001a}.header-content{max-width:1200px;margin:0 auto}.header-content span{font-size:2rem;font-weight:700;color:#fff;letter-spacing:2px}.chat-window{flex:1;overflow-y:auto;padding:2rem;background:transparent}.message{margin-bottom:1.5rem;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{text-align:right}.message-header{font-size:.85rem;font-weight:600;margin-bottom:.5rem;color:var(--text-secondary)}.message.user .message-header{color:#a78bfa}.message-content{display:inline-block;width:fit-content;max-width:70%;padding:1rem 1.5rem;border-radius:1rem;background:var(--bubble-bot);color:var(--text-color);box-shadow:0 4px 6px #0000001a;text-align:left;word-wrap:break-word;overflow-wrap:break-word;border:1px solid rgba(255,255,255,.1)}.message.user .message-content{background:var(--bubble-user);color:#fff;border:none}.message-content p{margin:.5rem 0}.message-content p:first-child{margin-top:0}.message-content p:last-child{margin-bottom:0}.message-content ul,.message-content ol{margin:.5rem 0;padding-left:1.5rem}.message-content li{margin:.25rem 0}.message-content strong{font-weight:700;color:#e2e8f0}.message-content code{background:#0003;padding:.2rem .4rem;border-radius:.25rem;font-family:monospace;font-size:.9em}.message-content pre{background:#0000004d;padding:1rem;border-radius:.5rem;overflow-x:auto;margin:.5rem 0}.message-content pre code{background:transparent;padding:0;color:#e2e8f0}.chat-input{border-top:1px solid var(--border-color);background:#1e293bcc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1.5rem 2rem}.input-container{max-width:1200px;margin:0 auto;display:flex;gap:1rem;align-items:flex-end}.input-container textarea{flex:1;border:1px solid var(--border-color);border-radius:1rem;padding:1rem 1.5rem;font-size:1rem;font-family:inherit;resize:none;background:#0f172a99;color:var(--text-color);transition:all .3s ease;box-shadow:0 2px 8px #0000001a}.input-container textarea::placeholder{color:var(--text-secondary);opacity:.7}.input-container textarea:focus{outline:none;border-color:var(--primary-color);background:#0f172acc;box-shadow:0 0 0 2px #8b5cf633}.input-container button{padding:1rem 2.5rem;background:var(--primary-color);color:#fff;border:none;border-radius:1rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #0003;position:relative;overflow:hidden}.input-container button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.input-container button:hover:before{left:100%}.input-container button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #8b5cf64d;background:var(--primary-hover)}.input-container button:active{transform:translateY(0);box-shadow:0 2px 8px #0003}.input-container button:disabled{background:var(--text-secondary);cursor:not-allowed;box-shadow:none;transform:none;opacity:.5}