*{box-sizing:border-box}body{
margin:0;
font-family:Arial,Helvetica,sans-serif;
background:linear-gradient(135deg,#0d0d0d,#222);
color:#fff;
display:flex;
justify-content:center;
align-items:center;
min-height:100vh;
padding:20px}
.card{
background:#ffffff;
color:#222;
max-width:700px;
width:100%;
padding:50px;
border-radius:18px;
text-align:center;
box-shadow:0 20px 60px rgba(0,0,0,.35)}
.logo{max-width:280px;width:100%;height:auto;margin-bottom:25px}
h1{margin:0 0 20px;font-size:2.2rem}
p{font-size:1.05rem;line-height:1.7}
.contactos{
margin-top:35px;
padding-top:25px;
border-top:1px solid #ddd}
a{color:#000;text-decoration:none;font-weight:bold}
a:hover{text-decoration:underline}