/* Fondo general */
body {
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
}

body {
  background: url('../img/caja.jpg') no-repeat center center;
  background-size: cover;
}


/* Tarjeta de login */
.login-card {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.8s ease-in-out;
}

.logo-login {
  max-width: 120px;
  height: auto;
  margin-bottom: 10px;
  filter: drop-shadow(0 0 5px rgba(0,0,0,0.2));
}


/* Título */
.login-card h4 {
  margin-bottom: 20px;
  text-align: center;
  color: #2a5298;
}

/* Botón personalizado */
.btn-primary {
  background-color: #2a5298;
  border: none;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: #1e3c72;
}

/* Animación de entrada */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive para móviles */
@media (max-width: 480px) {
  .login-card {
    padding: 20px;
    border-radius: 8px;
  }
}