htwkalender-pwa/frontend/public/primevue-sass-theme/theme-base/components/file/_fileupload.scss

// core
.p-fileupload-content {
  position: relative;
}

.p-fileupload-content .p-progressbar {
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.p-button.p-fileupload-choose {
  position: relative;
  overflow: hidden;
}

.p-fileupload-buttonbar {
  display: flex;
  flex-wrap: wrap;
}

.p-fileupload > input[type="file"],
.p-fileupload-basic input[type="file"] {
  display: none;
}

.p-fluid .p-fileupload .p-button {
  width: auto;
}

.p-fileupload-file {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.p-fileupload-file-thumbnail {
  flex-shrink: 0;
}

.p-fileupload-file-actions {
  margin-left: auto;
}

// theme
.p-fileupload {
  .p-fileupload-buttonbar {
    background: $panelHeaderBg;
    padding: $panelHeaderPadding;
    border: $panelHeaderBorder;
    color: $panelHeaderTextColor;
    border-bottom: 0 none;
    border-top-right-radius: $borderRadius;
    border-top-left-radius: $borderRadius;
    gap: $inlineSpacing;

    .p-button {
      &.p-fileupload-choose.p-focus {
        @include focused();
      }
    }
  }

  .p-fileupload-content {
    background: $panelContentBg;
    padding: $fileUploadContentPadding;
    border: $panelContentBorder;
    color: $panelContentTextColor;
    border-bottom-right-radius: $borderRadius;
    border-bottom-left-radius: $borderRadius;

    &.p-fileupload-highlight {
      border: $fileUploadContentHoverBorder;
      background-color: $highlightBg;
    }
  }

  .p-fileupload-file {
    padding: $fileUploadFilePadding;
    border: $fileUploadFileBorder;
    border-radius: $borderRadius;
    gap: $inlineSpacing;
    margin-bottom: $inlineSpacing;

    &:last-child {
      margin-bottom: 0;
    }
  }

  .p-fileupload-file-name {
    margin-bottom: $inlineSpacing;
  }

  .p-fileupload-file-size {
    margin-right: $inlineSpacing;
  }

  .p-progressbar {
    height: $fileUploadProgressBarHeight;
  }

  .p-fileupload-row {
    > div {
      padding: $tableBodyCellPadding;
    }
  }

  &.p-fileupload-advanced {
    .p-message {
      margin-top: 0;
    }
  }
}

.p-fileupload-choose {
  &:not(.p-disabled):hover {
    background: $buttonHoverBg;
    color: $buttonTextHoverColor;
    border-color: $buttonHoverBorderColor;
  }

  &:not(.p-disabled):active {
    background: $buttonActiveBg;
    color: $buttonTextActiveColor;
    border-color: $buttonActiveBorderColor;
  }
}