/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Evita el desplazamiento horizontal */
html,
body {
  overflow-x: hidden;
  max-width: 100%;
  font-family: "Georgia", serif;
  background-color: #f9f9f9;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  background-color: #fff;
  padding: 15px;
  text-align: center;
  border-bottom: 2px solid #ccc;
  width: 100%;
}

header .image_nav {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Contenedor principal */
.container {
  max-width: 1170px;
  width: 100%;
  margin: 20px auto;
  background: #fff;
  padding: 5%;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  flex-grow: 1;
}

/* Formulario */
form {
  margin-bottom: 30px;
  padding-bottom: 20px;
}

label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
}

input[type="text"],
input[type="file"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ddd;
  font-size: 1.1em;
  border-radius: 5px;
  box-sizing: border-box;
}

/* Botones centrados */
.button-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin-top: 20px;
  flex-wrap: wrap;
}

button {
  padding: 15px 20px;
  background-color: #333;
  color: #fff;
  border: none;
  font-size: 1.1em;
  cursor: pointer;
  text-transform: uppercase;
  max-width: 300px;
  width: 100%;
  text-align: center;
  border-radius: 5px;
  white-space: nowrap;
  transition: background 0.3s ease;
}

button:hover {
  background-color: #555;
}

/* Spinner */
.spinner {
  display: none;
  text-align: center;
  margin: 20px 0;
}

.spinner img {
  width: 50px;
}

/* Footer */
footer {
  text-align: center;
  margin-top: auto;
  padding: 20px;
  font-size: 1em;
  color: #777;
  background: #fff;
  width: 100%;
}

/* Separación entre el botón y el texto de derechos reservados */
footer nav {
  margin-bottom: 20px; /* Espaciado entre el botón y el texto */
}

/* Botón de cerrar sesión */
.logout-button {
  display: inline-block;
  padding: 15px 30px;
  background: #ff4d4d;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-size: 1.2em;
  transition: background 0.3s;
  margin-bottom: 20px; /* Espacio entre el botón y el texto del footer */
}

.logout-button:hover {
  background: #ff3333;
}

/* Login centrado */
.login-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  height: 100vh;
  padding: 20px;
}

.login-container {
  background: #fff;
  padding: 8%;
  border-radius: 10px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
  max-width: 80vh;
  width: 100%;
  text-align: center;
  margin: auto;
}

.login-container h2 {
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 2em;
  color: #333;
}

.login-container input {
  width: 100%;
  padding: 15px;
  margin: 10px 0;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1.2em;
  box-sizing: border-box;
}

.login-container button {
  width: 100%;
  padding: 15px;
  background: #4caf50;
  border: none;
  border-radius: 5px;
  color: #fff;
  font-size: 1.3em;
  cursor: pointer;
  transition: background 0.3s;
}

.login-container button:hover {
  background: #45a049;
}

/* Responsive design for tablets and small desktops */
@media (max-width: 1024px) {
  .container {
    width: 97%;
    padding: 4%;
  }

  .login-container {
    width: 80%;
    padding: 6%;
  }

  .button-container {
    flex-direction: column;
    gap: 15px;
  }

  button {
    width: 100%;
  }
}

/* Responsive design for mobile devices */
@media (max-width: 768px) {
  header {
    padding: 10px;
  }

  header .image_nav {
    width: 90%;
  }

  .container {
    width: 100%;
    padding: 10%;
  }

  form {
    padding-bottom: 10px;
  }

  .login-container {
    width: 100%;
    padding: 5%;
    border-radius: 0;
  }

  .button-container {
    flex-direction: column;
    gap: 10px;
  }

  button {
    width: 100%;
  }

  input[type="text"],
  input[type="file"],
  input[type="password"],
  textarea,
  select {
    font-size: 1em;
  }

  .login-container h2 {
    font-size: 1.5em;
  }

  .login-container button {
    font-size: 1.2em;
  }

  footer {
    font-size: 0.9em;
  }

  footer nav {
    margin-bottom: 15px;
  }
}

/* Responsive design for very small devices (phones) */
@media (max-width: 480px) {
  .container {
    padding: 15px;
  }

  header .image_nav {
    width: 100%;
  }

  .login-container {
    padding: 15px;
    box-shadow: none;
  }

  button {
    font-size: 1em;
    padding: 12px;
  }

  .logout-button {
    font-size: 1em;
    padding: 12px 20px;
  }

  footer {
    font-size: 0.8em;
  }
}