.drop-zone {
  border: 2px dashed #e0e6ed;
  border-radius: 10px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.7);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.drop-zone.dragover {
  border-color: #667eea;
  background: #f8f9ff;
  box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.25);
}

.file-list {
  margin-top: 12px;
  max-height: 260px;
  overflow-y: auto;
  border-top: 1px solid #e0e6ed;
  padding-top: 10px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px dashed #eef1f6;
}

.file-thumb {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: #f0f3f8;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid #e0e6ed;
}

.file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.file-icon {
  font-size: 20px;
  color: #667eea;
}

.file-info {
  flex: 1;
  min-width: 0;
  margin-right: auto;
}

.file-name {
  font-size: 13px;
  color: #2c3e50;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  font-size: 11px;
  color: #7f8c9a;
  margin-top: 2px;
}

.file-remove-btn {
  border: none;
  background: transparent;
  color: #c0392b;
  font-size: 18px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.file-item:hover .file-remove-btn {
  opacity: 1;
}

.file-remove-btn:hover {
  background: #fdecea;
}