body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
  margin: 0;
  padding: 0;
}

.form-container {
  background-color: white;
  padding: 30px;
  width: 100%;
  max-width: 500px;
  margin: 60px auto; /* separa del menú fijo */
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.2);
  box-sizing: border-box;
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="submit"],
button {
  width: 100%;
  padding: 15px;
  margin: 10px 0;
  border: 2px solid #ccc;
  border-radius: 5px;
  box-sizing: border-box;
  font-size: 16px;
}

button {
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 18px;
  cursor: pointer;
}

button:hover,
input[type="submit"]:hover {
  background-color: #218838;
}

a {
  display: inline-block;
  margin-top: 10px;
  text-decoration: none;
  color: #007bff;
  font-size: 14px;
}

a:hover {
  text-decoration: underline;
}

/* Menú fijo arriba */
.menu-navegacion {
  background-color: #e0f0e9;
  padding: 10px 0;
  border-bottom: 1px solid #ccc;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 999;
}

.menu-navegacion ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.menu-navegacion li {
  display: inline-block;
}

.menu-navegacion a {
  text-decoration: none;
  font-weight: bold;
  color: #007b5e;
  font-family: Arial, sans-serif;
  transition: color 0.3s;
}

.menu-navegacion a:hover {
  color: #005040;
}

.form-wrapper {
  padding-top: 70px; /* deja espacio para el menú */
}

/* 🔥 FULL RESPONSIVE para pantallas <= 768px */
@media screen and (max-width: 768px) {
  .form-container {
    width: 90%;
    padding: 20px;
    margin: 80px auto;
  }

  input[type="email"],
  input[type="password"],
  input[type="text"],
  input[type="submit"],
  button {
    font-size: 18px;
    padding: 16px;
  }

  h2 {
    font-size: 24px;
    text-align: center;
  }
}

/* 📱 Ajustes extras para pantallas <= 480px */
@media screen and (max-width: 480px) {
  .form-container {
    width: 95%;
    padding: 15px;
  }

  input[type="email"],
  input[type="password"],
  input[type="text"],
  input[type="submit"],
  button {
    font-size: 20px;
    padding: 18px;
  }

  h2 {
    font-size: 22px;
  }

  a {
    font-size: 16px;
  }
}