body {
  margin: 0;
  padding: 0;
  background-color: #f5f7fa;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #2d3748;
  min-height: 100vh;
}

.navbar-custom {
  background-color: #2b6cb0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 0.5rem 1rem;
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.2rem;
  color: white !important;
  text-decoration: none;
  transition: color 0.3s ease;
}

.navbar-brand:hover {
  color: #e2e8f0 !important;
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
  transition: all 0.3s ease;
}

.btn-outline-light:hover {
  background-color: white;
  color: #2b6cb0;
  border-color: white;
}

.container {
  max-width: 1000px;
  margin: 80px auto 20px;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-control {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 1rem;
  color: #2d3748;
  background-color: white;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  border-color: #4299e1;
  outline: none;
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

#fortuneOutput {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #2d3748;
  margin: 20px 0;
  padding: 15px;
  background-color: #f7fafc;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

#readBtn, #stopBtn {
  display: none;
}

@media (max-width: 768px) {
  .container {
    margin: 70px 10px 20px;
    padding: 15px;
  }

  .btn-outline-light {
    font-size: 0.9rem;
    padding: 0.375rem 0.75rem;
  }

  #fortuneOutput {
    font-size: 1rem;
    padding: 10px;
  }
}