body{font-family:Arial;background:#0f172a;color:white;margin:0}
.nav{background:#020617;padding:15px;display:flex;justify-content:space-between}
.container{max-width:900px;margin:auto;padding:20px}
.card{background:#1e293b;padding:15px;margin:10px 0;border-radius:10px}
button{background:#38bdf8;border:none;padding:8px;color:white;border-radius:6px}
input,textarea{width:100%;margin:5px 0;padding:8px;border-radius:6px;border:none}