front_directorio/src/App.css

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f0f2f5;
}

.App {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

form.login-form {
  max-width: 300px;
  width: 100%;
  margin: auto;
  padding: 1.5em;
  background: white;
  box-shadow: 0 4px 8px 2px rgba(0, 0, 0, 0.1);
}

h2.text-warning {
  color: #ffc107;
  font-size: 1.5em;
  margin-bottom: 20px;
  text-align: center;
}

.input-group {
  margin-bottom: 0.75em;
}

label {
  margin-bottom: 0.5em;
  color: #333333;
  display: block;
  font-size: 0.9em;
}

input[type="text"],
input[type="password"] {
  border: 1px solid #CCCCCC;
  padding: 0.4em;
  font-size: 0.9em;
  width: 100%;
  box-sizing: border-box;
  border-radius: 0; /* Esquinas cuadradas */
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 2px 4px 1px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease;
}

input[type="text"]:focus,
input[type="password"]:focus {
  box-shadow: 0 0 8px 2px rgba(0, 123, 255, 0.5);
  outline: none;
}

button {
  padding: 0.6em;
  font-size: 0.9em;
  color: #fff;
  background-color: #007BFF;
  border: none;
  border-radius: 1em;
  cursor: pointer;
  width: 100%;
  box-shadow: 0 4px 8px 2px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
  background-color: #0056b3;
  box-shadow: 0 6px 12px 4px rgba(0, 0, 0, 0.2);
}

input[type="checkbox"] {
  margin-right: 0.5em;
}

footer {
  margin-top: auto;
}

.nav-link.bg-warning {
  background-color: #ffc107 !important;
  color: #212529 !important;
}

p.text-center.mt-3 {
  margin-top: 1rem;
  text-align: center;
  font-size: 1em;
}