#drop-area {
  border: 2px dashed #ccc;
  border-radius: 8px;
  padding: 2rem;
  background: #fafafa;
  transition: background 0.2s ease;
  cursor: pointer;
}
#drop-area.hover {
  background: #eef2f5;
}
#fileElem {
  display: none;
}
.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover {
  background: #0056b3;
}
.resize-fields {
  margin: 1.5rem 0;
}
.resize-fields input {
  width: 100px;
  padding: 0.4rem;
  margin: 0 0.5rem;
  border-radius: 6px;
  border: 1px solid #ccc;
  text-align: center;
}
table {
  margin-top: 1.5rem;
  border-collapse: collapse;
  width: 100%;
}
th, td {
  padding: 0.75rem;
  border: 1px solid #eee;
}
th {
  background-color: #f0f0f0;
  text-align: left;
}
#output {
  margin-top: 2rem;
}
@media (max-width: 600px) {
  .resize-fields input {
    width: 80px;
  }
}