/* Estilos para la página de login */

/* Reset y configuración general */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-image: url('../images/tubes.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 430px;
  padding: 20px;
}

.login-box {
  background-color: rgba(255, 255, 255, 0.95);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-logo {
  width: 200px;
  height: 150px;
  margin-bottom: 30px;
  border-radius: 10px;
  object-fit: contain;
}

.login-box h2 {
  color: #333;
  margin-bottom: 30px;
  font-size: 24px;
  font-weight: 600;
}

.input-box {
  margin-bottom: 25px;
  text-align: left;
}

.input-box label {
  display: block;
  margin-bottom: 8px;
  color: #555;
  font-weight: 500;
  font-size: 14px;
}

.input-box input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e1e1e1;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  background-color: #fff;
}

.input-box input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.input-box input::placeholder {
  color: #999;
  font-style: italic;
}

.btn {
  width: 100%;
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  color: white;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover {
  background: linear-gradient(135deg, #0056b3 0%, #004494 100%);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.alert {
  padding: 12px 16px;
  margin-bottom: 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

/* Responsivo */
@media (max-width: 768px) {
  .login-container {
    padding: 15px;
  }

  .login-box {
    padding: 30px 25px;
  }

  .login-logo {
    width: 150px;
    height: 110px;
  }

  .login-box h2 {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .login-box {
    padding: 25px 20px;
  }

  .login-logo {
    width: 120px;
    height: 90px;
  }

  .input-box input {
    font-size: 16px; /* Evitar zoom en iOS */
  }
}

/* Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-box {
  animation: fadeIn 0.5s ease-out;
}

/* Mejoras de accesibilidad */
.btn:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
}

.input-box input:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
}