body{

font-family:Arial,Helvetica,sans-serif;

background:#f5f5f5;

margin:0;

padding:40px;

}

.container{

max-width:700px;

margin:auto;

background:white;

padding:30px;

border-radius:12px;

box-shadow:0 4px 20px rgba(0,0,0,.1);

}

h1{

margin-top:0;

}

.subtitle{

color:#666;

margin-bottom:30px;

}

textarea{

width:100%;

height:150px;

font-size:16px;

padding:15px;

box-sizing:border-box;

}

button{

margin-top:20px;

padding:12px 30px;

font-size:18px;

cursor:pointer;

}

.memory{

background:#f1f1f1;

padding:12px;

margin-top:10px;

border-radius:8px;

}