:root {
  --primary-color: #007bff;
  --dark-color: #333;
  --error-bg: #ffebee;
  --error-color: #c62828;
  --success-bg: #e8f5e9;
  --success-color: #2e7d32;
  --input-border: #ccc;
  --input-border-radius: 5px;
  --font-family: Arial, sans-serif;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background-image: url('img/fundologin.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--dark-color);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.frosted-glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  text-align: center;
  color: var(--dark-color);
  animation: fadeIn 0.5s ease-in-out;
}

h2 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 5px;
  color: var(--dark-color);
}

input[type="email"],
input[type="text"],
input[type="password"],
select {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--input-border);
  border-radius: var(--input-border-radius);
  font-size: 16px;
  background: rgba(255, 255, 255, 0.5);
}

input[type="email"]:focus,
input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 5px var(--primary-color);
}

.btn-entrar {
  width: 100%;
  padding: 12px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--input-border-radius);
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
}

.btn-entrar:hover {
  background-color: #0056b3;
  transform: scale(1.02);
}

.btn-entrar:disabled {
  background-color: #b0c4de;
  cursor: not-allowed;
}

.error-message {
  background-color: var(--error-bg);
  color: var(--error-color);
  padding: 10px;
  border-radius: var(--input-border-radius);
  margin-bottom: 15px;
  animation: fadeIn 0.5s ease-in-out;
}

.success-message {
  background-color: var(--success-bg);
  color: var(--success-color);
  padding: 10px;
  border-radius: var(--input-border-radius);
  margin-bottom: 15px;
  animation: fadeIn 0.5s ease-in-out;
}

.info-text,
.signup-link {
  text-align: center;
  margin-top: 15px;
  font-size: 14px;
  color: var(--dark-color);
}

.signup-link a {
  color: var(--primary-color);
  text-decoration: none;
}

.signup-link a:hover {
  text-decoration: underline;
}

@media screen and (max-width: 600px) {
  .container {
    padding: 10px;
  }

  .frosted-glass {
    padding: 20px;
  }
}

@media screen and (max-width: 400px) {
  .frosted-glass {
    padding: 15px;
  }

  .btn-entrar {
    font-size: 14px;
    padding: 10px;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}