body{
font-family: Arial, Helvetica, sans-serif;
background-color: #cfefff; 
margin: 0;
padding: 0;
}

.contenedor{
width: 500px;
margin: 50px auto;
background: white; 
padding: 25px;
border-radius: 10px;
box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

h1{
color: #0077b6;
text-align: center;
}

h2{
text-align: center;
color: #333;
}

h3{
text-align: center;
color: #555;
}

label{
display:block;
margin-top:10px;
font-weight: bold;
}

input{
width:100%;
padding:8px;
margin-top:5px;
border-radius:5px;
border:1px solid #ccc;
}

button{
background:#0077b6;
color:white;
padding:10px;
border:none;
margin-top:15px;
cursor:pointer;
border-radius:5px;
width:100%;
}

button:hover{
background:#005f8f;
}

table{
width:100%;
border-collapse: collapse;
margin-top:15px;
}

td{
border:1px solid #ccc;
padding:10px;
}

tr:nth-child(even){
background-color:#f2f2f2;
}