/* File Upload Styling */
.file-upload-container {
  position: relative;
  width: 100%;
  margin-bottom: 10px;
}

.file-upload-button {
  display: inline-flex;
  align-items: center;
  background-color: #f8f9fa;
  border: 2px dashed #ced4da;
  border-radius: 4px;
  padding: 12px 20px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  width: 100%;
  transition: all 0.3s ease;
}

.file-upload-button:hover {
  background-color: #e9ecef;
  border-color: #adb5bd;
}

.file-icon {
  margin-right: 8px;
  font-size: 1.2rem;
  color: #495057;
}

.file-upload-button input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 10;
}

.file-name-display {
  margin-top: 8px;
  padding: 6px 12px;
  background-color: #fff;
  border: 1px solid #ced4da;
  border-radius: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.9rem;
  color: #6c757d;
  transition: all 0.3s ease;
}

.file-name-display.has-file {
  border-color: #28a745;
  background-color: #e8f3ee;
  color: #28a745;
  font-weight: 500;
}

.file-requirements {
  padding: 6px 10px;
  border-left: 3px solid #17a2b8;
  font-size: 0.85rem;
}

/* Error state */
.file-upload-container.is-invalid .file-upload-button {
  border-color: #dc3545;
  background-color: #f8d7da;
}

.file-upload-container.is-invalid .file-name-display {
  border-color: #dc3545;
  color: #dc3545;
}

.file-upload-container.is-invalid .file-icon {
  color: #dc3545;
}

/* Mobile Optimization */
@media (max-width: 576px) {
  .file-upload-button {
    padding: 10px 15px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .file-icon {
    margin-right: 0;
    margin-bottom: 5px;
    font-size: 1.5rem;
  }
  
  .file-name-display {
    text-align: center;
  }
}