@color0: rgb(var(--primary-6));
@color1: #ffffff;
@color2: #3fdc75;
@width0: 20px;
@height1: 20px;

.upload-btn-size-mini {
  height: 24px;
  padding: 0 1px;
  color: #fff;
  font-size: 12px;
  border-radius: var(--border-radius-small);
}

.upload-btn-size-small {
  height: 28px;
  padding: 0 5px;
  color: #fff;
  font-size: 14px;
  border-radius: var(--border-radius-small);
}

.upload-btn-size-medium {
  height: 32px;
  padding: 0 5px;
  color: #fff;
  font-size: 14px;
  border-radius: var(--border-radius-small);
}

.upload-btn-size-large {
  height: 36px;
  padding: 0 10px;
  color: #fff;
  font-size: 14px;
  border-radius: 20px;
}

.upload-btn-shape-square {
  border-radius: 5px;
}

.upload-btn-shape-round {
  border-radius: 16px;
}

.upload-btn-disabled {
  color: #fff;
  background-color: var(--color-primary-light-3) !important;
  border: 1px solid transparent;
  cursor: not-allowed !important;

  .upload-icon {
    color: var(--color-primary-light-3) !important;
  }
}

.upload-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  color: #fff;
  font-weight: 400;
  line-height: 1.5715;
  white-space: nowrap;
  background-color: rgb(var(--primary-6));
  border: 1px solid transparent;
  outline: none;
  box-shadow: 0 4px 20px rgba(var(--primary-6), 0.2);
  cursor: pointer;
  transition: all 0.1s cubic-bezier(0, 0, 1, 1);
  transition: transform 0.2s ease, background-color 0.3s ease,
    box-shadow 0.3s ease;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;

  .upload-icon {
    position: relative;
    display: inline-block;
    width: 20px;
    height: 20px;
    margin: 0 4px 0 0;
    /* stylelint-disable-next-line order/properties-order */
    overflow: hidden;
    color: rgb(var(--primary-6));
    vertical-align: top;
    background: #fff;
    border-radius: 50%;

    &::before {
      position: absolute;
      top: 0;
      left: 0;
      width: 20px;
      height: 100%;
      background: rgb(var(--primary-6));
      border-radius: 50%;
      transform: scale(0);
      transition: transform 0.3s ease, background-color 0.3s ease;
      content: '';
    }

    svg {
      position: absolute;
      top: 50%;
      left: 50%;
      z-index: 1;
      width: 12px;
      height: 12px;
      margin: -6px 0 0 -6px;
      color: currentColor;

      &:nth-child(1) {
        top: 0;
        left: 0;
        width: 20px;
        height: 20px;
        margin: 0;
        fill: none;
        stroke: @color1;
        stroke-dasharray: 47.124;
        stroke-dashoffset: 94.248;
        stroke-width: 1px;
      }

      &:nth-child(2) {
        transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        fill: currentColor;
      }

      &:nth-child(3) {
        transform: translateY(20px);
        transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
          opacity 0.3s ease;
        fill: currentColor;
      }
    }
  }

  .upload-icon-mini {
    transform: scale(0.8);
  }

  .upload-icon-small {
    transform: scale(0.9);
  }

  .upload-icon-medium {
    transform: scale(1);
  }

  .upload-icon-large {
    transform: scale(1.2);
  }

  ul {
    position: relative;
    display: inline-block;
    min-width: 50px;
    height: @height1;
    margin: 0;
    padding: 0 5px 0 0;
    text-align: center;
    vertical-align: top;
    list-style: none;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;

    li {
      --rotateX: 0deg;

      position: absolute;
      top: 0;
      bottom: 0;
      width: 94%;
      line-height: 20px;
      transform: rotateX(var(--rotateX)) translateZ(10px);
      transform-origin: 50% 50%;
      -webkit-backface-visibility: hidden; /* Chrome 和 Safari */
      -moz-backface-visibility: hidden; /* Firefox */
      -ms-backface-visibility: hidden; /* Internet Explorer */
      backface-visibility: hidden;

      &:nth-child(2) {
        --rotateX: -90deg;
      }

      &:nth-child(3) {
        --rotateX: -180deg;
      }
    }

    .none {
      visibility: hidden;
      opacity: 0;
    }
  }

  &.uploading {
    pointer-events: none;

    .upload-icon {
      background: none;
      transition: background-color 0.1s ease 0.3s;

      &::before {
        transform: scale(1);
      }

      svg {
        &:nth-child(1) {
          animation: turn 1.6s linear infinite forwards,
            path 1.6s linear infinite forwards;
        }

        &:nth-child(2) {
          transform: translateY(-20px);
        }

        &:nth-child(3) {
          transform: translateY(0) scale(0.6);
          opacity: 0;
        }
      }
    }

    ul {
      transform: rotateX(90deg);
    }
  }

  &.uploading.done {
    background: @color2;
    box-shadow: 0 4px 20px rgba(@color2, 0.15);

    .upload-icon {
      background: #fff;
      transition: background-color 0.1s ease 0s;

      &::before {
        background: @color2;
        transform: scale(0);
      }

      svg {
        &:nth-child(1) {
          animation: none;
        }

        &:nth-child(2) {
          animation: none;
        }

        &:nth-child(3) {
          transform: scale(1);
          opacity: 1;
          transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275)
              0.3s,
            opacity 0.4s ease 0.25s;
          fill: @color2;
        }
      }
    }

    ul {
      transform: rotateX(180deg);
    }
  }
}

.upload-btn:not([disabled]):hover {
  box-shadow: 0 0 10px rgba(var(--primary-6), 0.4);
  /* stylelint-disable-next-line no-descending-specificity */
  .upload-icon {
    svg {
      &:nth-child(2) {
        transform: translateY(-20px);
      }

      &:nth-child(3) {
        transform: translateY(0);
      }
    }
  }
}

.upload-btn:not([disabled]):active {
  box-shadow: 0 0 15px rgba(var(--primary-6), 0.5);
  transform: scale(0.94);
}

@keyframes turn {
  100% {
    transform: rotate(360deg);
  }
}

@keyframes path {
  100% {
    stroke-dashoffset: 0;
  }
}