* {
  box-sizing: border-box;
}
   body {
  font-family: Arial, sans-serif;
  background-color: #191970;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh; /* mejor que height */
  margin: 0;
  padding: 20px;
}

/* CONTENEDOR LOGIN */
.login-container {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);

  width: 95%;
  max-width: 350px; /* tamaño máximo desktop */
  text-align: center;
}

/* LOGO RESPONSIVE */
.logo {
  width: 100%;
  max-width: 220px;
  margin-bottom: 25px;
}

/* INPUTS */
input {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 16px;
}

/* BOTÓN */
button {
  width: 100%;
  padding: 12px;
  background: #4f46e5;
  color: white;
  border: none;
  border-radius: 8px;
  margin-top: 10px;
  cursor: pointer;
  font-weight: bold;
  font-size: 16px;
}

button:hover {
  background: #4338ca;
}



/* WHATSAPP FLOTANTE */
.whatsapp-float {
  position: fixed;
  bottom: 50px;
  right: 400px;
  z-index: 1000;
}

.whatsapp-float img {
  width: 55px;
  height: 55px;
}

/* 📱 AJUSTES EXTRA PARA CELULAR */
@media (max-width: 480px) {
  .login-container {
    padding: 20px;
  }

  h2 {
    font-size: 20px;
  }

  .whatsapp-float {
  position: fixed;
  bottom: 50px;
  right: 40px;
  z-index: 1000;
}
}