:root{--bg: #0b0d10;--panel: #0f1116;--panel-2: #141823;--text: #e6e9ef;--muted: #9aa4b2;--accent: #7aa2ff;--accent-2: #6ee7f3;--ring: 0 0 0 4px rgba(122, 162, 255, .3);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";line-height:1.5;font-weight:400;color-scheme:dark;color:var(--text);background-color:var(--bg);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;min-width:320px;min-height:100vh;background:radial-gradient(1200px 600px at 20% -10%,rgba(110,231,243,.08),transparent 60%),radial-gradient(1200px 600px at 100% 10%,rgba(122,162,255,.1),transparent 60%),var(--bg)}h1{font-size:3.2em;line-height:1.1}button{border-radius:12px;border:1px solid rgba(255,255,255,.08);padding:.7em 1.1em;font-size:.95rem;font-weight:600;letter-spacing:.01em;font-family:inherit;background:linear-gradient(180deg,#ffffff0f,#ffffff08);color:var(--text);cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}button:hover{border-color:#7aa2ff99;box-shadow:0 0 0 1px #7aa2ff66,0 20px 40px -20px #00000080}button:focus,button:focus-visible{outline:none;box-shadow:var(--ring)}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.chatbot-container{display:flex;flex-direction:column;height:100vh;background:#0a0a0a;color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.logo-section{display:flex;justify-content:center;align-items:center;padding:40px 20px 20px;background:linear-gradient(180deg,#0a0a0a 0% 100%)}.logo{display:flex;align-items:center;gap:12px;font-size:32px;font-weight:700;color:#fff}.logo-icon{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#7aa2ff,#6ee7f3);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;color:#fff;box-shadow:0 0 20px #7aa2ff4d}.logo-text{font-size:32px;font-weight:700;letter-spacing:-.5px}.messages-container{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:20px;overflow-y:auto}.welcome-section{text-align:center;max-width:600px;margin:0 auto}.welcome-title{font-size:28px;font-weight:700;margin-bottom:16px;color:#fff}.welcome-description{font-size:16px;color:#9ca3af;line-height:1.5;margin-bottom:32px}.start-chat-btn{background:linear-gradient(135deg,#7aa2ff,#6ee7f3);color:#fff;border:none;padding:16px 32px;border-radius:12px;font-size:18px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 15px #7aa2ff4d}.start-chat-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #7aa2ff66}.start-chat-btn:active{transform:translateY(0)}.messages-list{width:100%;max-width:800px;display:flex;flex-direction:column;gap:20px;padding:20px 0}.message{display:flex;flex-direction:column;max-width:70%;animation:fadeIn .3s ease-in}.message.user{align-self:flex-end}.message.bot{align-self:flex-start}.message-content{padding:16px 20px;border-radius:20px;word-wrap:break-word;white-space:pre-wrap;line-height:1.5;font-size:16px}.message.user .message-content{background:linear-gradient(135deg,#7aa2ff,#6ee7f3);color:#fff;border-bottom-right-radius:6px}.message.bot .message-content{background:#1f2937;color:#fff;border:1px solid #374151;border-bottom-left-radius:6px}.youtube-link{color:red;text-decoration:none;font-weight:600;display:inline-block;margin:2px 0;padding:4px 8px;border-radius:6px;background:#ff00001a;border:1px solid rgba(255,0,0,.2);transition:all .2s ease}.youtube-link:hover{background:#f003;border-color:#f006;transform:translateY(-1px);text-decoration:none;color:#f33}.message-time{font-size:12px;color:#9ca3af;margin-top:6px;padding:0 8px}.message.user .message-time{text-align:right}.message.bot .message-time{text-align:left}.typing-indicator{display:flex;gap:4px;align-items:center}.typing-indicator span{width:8px;height:8px;border-radius:50%;background:#9ca3af;animation:typing 1.4s infinite ease-in-out}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-10px);opacity:1}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.input-section{padding:20px;background:#0a0a0a;border-top:1px solid #1f2937}.input-container{display:flex;align-items:center;gap:12px;max-width:800px;margin:0 auto;padding:16px 20px;background:#1f2937;border:1px solid #374151;border-radius:24px;transition:all .2s ease}.input-container:focus-within{border-color:#7aa2ff;box-shadow:0 0 0 3px #7aa2ff1a}.attachment-btn,.voice-btn,.send-btn{background:none;border:none;color:#9ca3af;font-size:18px;cursor:pointer;padding:8px;border-radius:8px;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.attachment-btn:hover,.voice-btn:hover{background:#374151;color:#fff}.send-btn{background:#7aa2ff;color:#fff;border-radius:12px;padding:10px 12px}.send-btn:hover:not(:disabled){background:#6b8eff;transform:translateY(-1px)}.send-btn:disabled{background:#374151;color:#6b7280;cursor:not-allowed}.message-input{flex:1;background:none;border:none;outline:none;color:#fff;font-size:16px;padding:8px 0}.message-input::placeholder{color:#9ca3af}.input-controls{display:flex;align-items:center;gap:8px}.auto-text{font-size:14px;color:#9ca3af;font-weight:500}.footer{padding:16px 20px 24px;text-align:center;background:#0a0a0a;border-top:1px solid #1f2937}.footer p{font-size:12px;color:#6b7280;margin:0;line-height:1.4}@media (max-width: 768px){.logo{font-size:28px}.logo-icon{width:36px;height:36px;font-size:20px}.welcome-title{font-size:24px}.welcome-description{font-size:14px}.message{max-width:85%}.message-content{padding:12px 16px;font-size:15px}.input-container{padding:12px 16px;gap:8px}.message-input{font-size:15px}}@media (max-width: 480px){.logo-section{padding:30px 20px 15px}.messages-container,.input-section{padding:15px}.message{max-width:90%}}