body{
font-family: Arial;
background:#f2f2f2;
margin:0;
padding:0;
text-align:center;
}

header{
background:#ff6b00;
color:white;
padding:20px;
}

.card{
background:white;
margin:20px;
padding:20px;
border-radius:12px;
box-shadow:0 4px 10px rgba(0,0,0,0.1);
}

button{
padding:10px 20px;
border:none;
border-radius:6px;
cursor:pointer;
margin-top:10px;
}

input, select{
padding:8px;
margin:5px;
}

#workout img{
width:120px;
margin:10px;
}