:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{background:linear-gradient(135deg,#43cea2,#185a9d);font-family:Segoe UI,Arial,sans-serif;min-height:100vh;margin:0;display:flex;align-items:center;justify-content:center}#root{width:100%;max-width:420px;margin:0 auto;padding:0;background:#fff;border-radius:24px;box-shadow:0 8px 32px #0003,0 1.5px 8px #43cea233;min-height:700px;overflow:hidden;border:2.5px solid #43cea2}.auth-container{padding:2.5rem 2rem 2rem;background:linear-gradient(120deg,#f5f7fa,#c3cfe2);border-radius:18px;box-shadow:0 2px 8px #0001}.auth-container h2,.auth-container h3{color:#185a9d;margin-bottom:.5rem}.auth-container input{display:block;margin:12px auto;padding:12px;width:92%;border-radius:8px;border:1px solid #b0bec5;font-size:1rem;background:#f9f9f9;transition:border .2s}.auth-container input:focus{border:1.5px solid #43cea2;outline:none}.auth-container button{padding:12px 24px;border:none;background:linear-gradient(90deg,#43cea2,#185a9d);color:#fff;border-radius:8px;cursor:pointer;margin-top:12px;font-size:1rem;font-weight:600;box-shadow:0 2px 8px #185a9d22;transition:background .2s}.auth-container button:hover{background:linear-gradient(90deg,#185a9d,#43cea2)}.chat-container{display:flex;flex-direction:column;height:100vh;max-height:700px;background:#f5f7fa}.chat-header .chat-header{display:flex;justify-content:space-between;align-items:center;padding:1.2rem 1.5rem;background:linear-gradient(90deg,#43cea2,#185a9d);color:#fff;border-radius:24px 24px 0 0;font-size:1.15rem;font-weight:700;letter-spacing:.5px;box-shadow:0 2px 8px #185a9d22;position:relative}.chat-header .chat-header:before{content:"";position:absolute;left:20px;top:50%;transform:translateY(-50%);width:40px;height:40px;background:url(https://cdn-icons-png.flaticon.com/512/1384/1384031.png) no-repeat center/cover;border-radius:50%;box-shadow:0 2px 8px #185a9d22}.chat-header .chat-header span{margin-left:60px}.chat-header button{background:#fff;color:#185a9d;border:none;border-radius:6px;padding:7px 16px;font-weight:600;cursor:pointer;transition:background .2s,color .2s}.chat-header button:hover{background:#185a9d;color:#fff}.chat-messages{flex:1;padding:1.2rem 1.5rem;overflow-y:auto;background:linear-gradient(120deg,#e3eafc,#f5f7fa);display:flex;flex-direction:column;gap:10px;scrollbar-width:thin;scrollbar-color:#43cea2 #e3eafc}.chat-messages::-webkit-scrollbar{width:7px}.chat-messages::-webkit-scrollbar-thumb{background:#43cea2;border-radius:8px}.chat-message{align-self:flex-start;max-width:80%;margin-bottom:6px;padding:12px 18px;background:linear-gradient(90deg,#43cea2,#185a9d);color:#fff;border-radius:18px 18px 18px 0;box-shadow:0 1px 8px #185a9d22;font-size:1.05rem;word-break:break-word;animation:fadeIn .3s;position:relative}.chat-message b{color:#fff;font-weight:700;margin-right:8px;text-shadow:0 1px 2px #185a9d33}.chat-input{display:flex;padding:1.2rem 1.5rem;background:#f0f4f8;border-radius:0 0 24px 24px;box-shadow:0 -2px 8px #185a9d11}.chat-input input{flex:1;padding:14px;border-radius:10px;border:1.5px solid #b0bec5;margin-right:14px;font-size:1.05rem;background:#fff;color:#111;transition:border .2s}.chat-input input:focus{border:2px solid #43cea2;outline:none}.chat-input button{padding:14px 28px;border:none;background:linear-gradient(90deg,#43cea2,#185a9d);color:#fff;border-radius:10px;cursor:pointer;font-size:1.05rem;font-weight:700;box-shadow:0 2px 8px #185a9d22;transition:background .2s}.chat-input button:hover{background:linear-gradient(90deg,#185a9d,#43cea2)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}