body {
  margin: 0;
  padding: 0;
  font-family: monospace;
  background: url("https://yt3.ggpht.com/vKDVUQxn5CYIPGMbElcA4AK14wavl5MmBPQ02OdSSWOqhp-huG8Ormeh4G1cnLw8uYEI_lantlsPjA=s784-c-fcrop64=1,2a150000d5eaffff-rw-nd-v1") no-repeat center center fixed;
  background-size: cover;
  color: #00ff00;
}

.login-box {
  width: 350px;
  padding: 40px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.85);
  box-shadow: 0 0 20px #00ff00;
  border-radius: 10px;
  text-align: center;
}

.login-box h2 {
  margin: 0 0 20px;
  color: #00ff00;
  text-shadow: 0 0 10px #00ff00;
}

.login-box input[type="text"],
.login-box input[type="password"],
.login-box input[type="email"] {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  background: transparent;
  border: 1px solid #00ff00;
  border-radius: 5px;
  color: #00ff00;
  outline: none;
}

.login-box input::placeholder {
  color: #00ff00;
  opacity: 0.7;
}

.login-box button {
  width: 100%;
  padding: 12px;
  background: #00ff00;
  border: none;
  border-radius: 5px;
  color: black;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.login-box button:hover {
  background: #00cc00;
  box-shadow: 0 0 15px #00ff00;
}

.login-box a {
  display: inline-block;
  margin-top: 15px;
  color: #00ff00;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
  text-shadow: 0 0 10px #00ff00;
}

.login-box a:hover {
  color: #00cc00;
  text-shadow: 0 0 20px #00ff00, 0 0 40px #00ff00;
  transform: scale(1.05);
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: #00ff00;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
  text-shadow: 0 0 10px #00ff00;
}

.back-link:hover {
  color: #00cc00;
  text-shadow: 0 0 20px #00ff00;
  transform: scale(1.05);
}

.forgot-link {
  display: block;
  margin-top: 10px;
  color: #00ff00;
  text-decoration: none;
  font-size: 14px;
  text-align: center;
  transition: 0.3s;
}

.forgot-link:hover {
  color: #00cc00;
  text-shadow: 0 0 10px #00ff00;
}

/* 📱 Responsividad */
@media (max-width: 600px) {
  .login-box {
    width: 90%;
    padding: 20px;
  }
  .login-box input,
  .login-box button {
    font-size: 14px;
    padding: 10px;
  }
}