@keyframes spin {
  to { transform: rotate(360deg); }
}
p {
  font-size: 1.4rem;
  margin: 0.8rem auto 2rem auto;
  max-width: 450px;
  line-height: 1.6;
  color: #666;
}

h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: #333;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}
h3 {
  font-size: 1.8rem;
  font-weight: 500;
  color: #444;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}
.loader {
  border: 6px solid #e0e0e0;
  border-top: 6px solid #007acc;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 1.2s linear infinite;
  margin-top: 2rem;
}

.placeholder {
  max-width: 700px;
  margin: 7rem auto;
  padding: 3rem;
  border: 1px solid #ddd;
  background: #ffffff;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  text-align: center;

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}