*{box-sizing:border-box}body{margin:0;font-family:system-ui,Arial,sans-serif;color:#fff} .stars{background:radial-gradient(ellipse at bottom,#0d1b2a 0%,#000 70%);min-height:100vh} .topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:rgba(0,0,0,.5);position:sticky;top:0} .logo{display:flex;align-items:center;gap:8px;font-weight:700} .logo img{height:36px;width:36px} nav a{color:#ddd;margin-left:14px;text-decoration:none} nav a:hover{color:#fff} .container{max-width:1000px;margin:0 auto;padding:24px} .card{background:rgba(255,255,255,0.03);padding:20px;border-radius:12px;margin:16px 0} .btn{padding:10px 14px;border-radius:10px;background:#111827;color:#fff;border:1px solid #4b5563} .form input{padding:10px;border-radius:8px;border:1px solid #374151;background:#0b1220;color:#fff} .footer{padding:30px;text-align:center;color:#a3a3a3} .chat-box{min-height:160px;background:rgba(0,0,0,.4);border:1px solid #334155;padding:10px;border-radius:10px;overflow:auto}