body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.navbar-brand {
  font-weight: bold;
  color: #fff;
}

.navbar-nav .nav-link {
  color: #fff;
}

.card {
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.card-header {
  background-image: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  background-size: cover;
  background-position: center;
  position: relative;
}

.card-header h4 {
  margin: 0;
  font-size: 24px;
  color: #fff;
}

.card-body {
  padding: 30px;
}

.form-group {
  margin-bottom: 30px;
}

.form-group label {
  font-size: 18px;
  color: #333;
}

.form-group input {
  border-radius: 5px;
  padding: 10px;
  border: 1px solid #ddd;
  font-size: 16px;
  color: #333;
  width: 100%;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
}

.btn-primary {
  background-color: #667eea;
  border-color: #667eea;
  font-size: 16px;
  padding: 10px 20px;
  border-radius: 5px;
}

.btn-primary:hover {
  background-color: #764ba2;
  border-color: #764ba2;
}

.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-left-color: #1abc9c;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  display: inline-block;
  margin-right: 5px;
  vertical-align: text-bottom;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  background-size: cover;
  background-position: 50% 50%;
  background-repeat: no-repeat;
}
.cover-photo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0.8;
}