@keyframes blink {
  0% {
    background-position: -100% 0;
  }

  100% {
    background-position: 100% 0;
  }
}

.button {
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: inherit;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  font-weight: 700;
  line-height: 18px;
  letter-spacing: 0.03em;

  border-radius: 2px;
  transition: all 0.25s;

  &:disabled {
    pointer-events: none;
  }

  /* standalone class cuz to omit isLoading */
  &.disabled {
    opacity: 0.3;
  }

  &.loading {
    animation: blink 1s linear infinite forwards;
    background-size: 200%;
  }
}

.block {
  width: 100%;
}

.noWrap {
  white-space: nowrap;
}

.primary {
  color: #000;
  /* TODO: gradient */
  background-color: #22ffcc;

  &:hover {
    background-color: #91fcdd;
  }

  &.loading {
    background-image: linear-gradient(
      to right,
      rgba(255, 255, 255, 0.25) 8%,
      rgba(255, 255, 255, 0.75) 38%,
      rgba(255, 255, 255, 0.25) 54%
    );
  }
}

.dark {
  color: #fff;
  background-color: #000;

  &:hover {
    /* TODO: gradient */
    /* TODO: icon color (?) */
    background-color: #404040;
  }

  &.loading {
    background-image: linear-gradient(
      to right,
      rgba(255, 255, 255, 0.1) 8%,
      rgba(255, 255, 255, 0.25) 38%,
      rgba(255, 255, 255, 0.1) 54%
    );
  }
}

.light {
  color: #000;
  background-color: #fff;

  &:hover {
    background-color: #d4d4d4;
  }

  &.loading {
    background-image: linear-gradient(
      to right,
      rgba(0, 0, 0, 0.01) 8%,
      rgba(0, 0, 0, 0.075) 38%,
      rgba(0, 0, 0, 0.01) 54%
    );
  }
}

.grey {
  color: #000;
  background-color: #e9e9e9;

  &:hover {
    background-color: #d4d4d4;
  }

  &.loading {
    background-image: linear-gradient(
      to right,
      rgba(0, 0, 0, 0.01) 8%,
      rgba(0, 0, 0, 0.075) 38%,
      rgba(0, 0, 0, 0.01) 54%
    );
  }
}

.border {
  color: #000;
  background-color: transparent;
  box-shadow: inset 0px 0px 0px 2px #000; /* border without affecting size */

  &:hover {
    color: #fff;
    background-color: #000;
  }

  &.loading {
    background-image: linear-gradient(to right, transparent 8%, #ddd 38%, transparent 54%);
  }
}

.transparent {
  background-color: transparent;

  &:hover {
    opacity: 0.5;
  }
}

.default {
  padding: 16px 32px;
  font-size: 18px;

  &.noText {
    /* TODO: icon size */
    padding: 15px 16px;
  }
}

.small {
  padding: 11px 16px;
  font-size: 16px;

  &.noText {
    /* TODO: icon size */
    padding: 12px 16px;
  }
}