body {
  background: 
    linear-gradient(rgba(11,15,20,0.75), rgba(11,15,20,0.75)),
    url("../images/antena.png") no-repeat center center fixed;

  background-size: cover;
  color: #eee;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}


.login-logo {
  width: 150px;
  max-width: 100%;
  margin: 0 auto 20px;
  display: block;
}

.login-logo {
  filter: drop-shadow(0 0 12px rgba(0,212,255,0.4));
}

.login-logo {
  animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}


.login-box {
  background: #1e252b;
  padding: 40px;
  border-radius: 8px;
  width: 320px;
  text-align: center;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}
h1 {
  color: #00d4ff;
  margin-bottom: 20px;
}
input {
  width: 100%;
  padding: 12px;
  margin: 15px 0;
  background: #2a323a;
  border: none;
  color: #eee;
  border-radius: 4px;
}
button {
  padding: 12px 30px;
  background: #00d4ff;
  border: none;
  font-weight: bold;
  border-radius: 4px;
  cursor: pointer;
}
.error {
  color: #ff5252;
  margin-top: 10px;
}