.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  margin: 20px 0 20px 200px;
  width: calc(100% - 200px); /* keep same look but adaptive */
  background: #fff;
  position: sticky;
  top: 0;
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  flex-wrap: wrap; /* allow smooth wrapping when resized */
  gap: 20px; /* natural gap */
  transition: all 0.3s ease; /* smooth resizing */
  z-index: 10;
}

.uploaded-title {
  font-size: clamp(20px, 2vw, 24px); /* responsive font */
  font-weight: bold;
  color: #0e0f0f;
  margin: 0;
  white-space: nowrap; /* prevent breaking */
  flex-shrink: 0;
}

.search-container {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  min-width: 260px;
}

#searchInput {
  width: clamp(200px, 25%, 300px); /* scales naturally */
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 15px;
  transition: all 0.25s ease;
}

#searchInput:focus {
  border-color: #007bff;
  box-shadow: 0 0 6px rgba(0,123,255,0.3);
  transform: scale(1.02);
}

/* Keep file list spacing consistent */
#fileList {
  margin-top: 10px;
}

/* ===== Tablet and Mobile Responsive ===== */
@media (max-width: 1024px) {
  .header-container {
    margin: 20px;
    width: auto;
  }
}

@media (max-width: 600px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 15px;
    margin: 10px;
    width: auto;
  }

  .uploaded-title {
    font-size: 20px;
    text-align: center;
  }

  .search-container {
    justify-content: center;
    width: 100%;
  }

  #searchInput {
    width: 100%;
  }
}