lbry-desktop/ui/scss/component/_button.scss

.button {
  display: inline-block;
  position: relative;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
}

.button--primary,
.button--secondary,
.button--alt,
.button--link {
  border-radius: var(--border-radius);

  &:focus {
    @include focus;
    z-index: 2; // Ensure focus box-shadow is always visible on every button side
  }
}

.button--primary,
.button--secondary,
.button--alt {
  height: var(--height-button);
  border-radius: var(--border-radius);
  padding: var(--spacing-s) var(--spacing-m);
  line-height: 1.2;
  font-weight: var(--font-weight-bold);

  @media (max-width: $breakpoint-small) {
    font-size: var(--font-small);
  }
}

.button--primary {
  background-color: var(--color-button-primary-bg);
  // color: var(--color-button-primary-text);

  .button__label {
    color: var(--color-button-primary-text);
  }

  .icon {
    stroke: var(--color-button-primary-text);
  }

  &:hover {
    color: var(--color-button-primary-hover-text);
    background-color: var(--color-button-primary-bg-hover);
  }

  .credit-amount {
    color: var(--color-button-primary-text);

    .icon {
      margin-left: 3px;
      margin-right: 2px;
    }
  }
}

.button--secondary {
  background-color: var(--color-button-secondary-bg);
  border: 1px solid var(--color-button-secondary-border);
  // color: var(--color-button-secondary-text);

  .button__label {
    color: var(--color-button-primary-text);
  }

  .icon {
    stroke: var(--color-button-primary-text);
  }

  &:hover {
    background-color: var(--color-button-secondary-bg-hover);
  }
}

.button--alt {
  background-color: var(--color-button-alt-bg);
  color: var(--color-button-alt-text);

  &:hover {
    background-color: var(--color-button-alt-bg-hover);
  }
}

.button--icon {
  width: 5rem;
  height: 5rem;
  background-repeat: no-repeat;
  background-size: 50%;
  border-radius: 50%;
  transition: background-color 0.2s;
  background-color: var(--color-primary);

  &:hover {
    background-color: var(--color-button-primary-bg-hover);
  }

  &.button--play {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink'%3E %3Cg stroke='white' stroke-width='2' fill='white' fill-rule='evenodd' stroke-linejoin='round'%3E %3Cpolygon points='5 21 5 3 21 12'/%3E %3C/g%3E %3C/svg%3E");
    background-position: calc(50% + 0.1rem) center;
  }

  &.button--view {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink'%3E %3Cg stroke='white' stroke-width='2' fill='none' fill-rule='evenodd'%3E %3Cpath d='M2, 12 C2, 12 5, 5 12, 5 C19, 5 22, 12 22, 12 C22, 12 19, 19 12, 19 C5, 19 2, 12 2, 12 Z' stroke-linejoin='round'/%3E %3Ccircle cx='12' cy='12' r='3'/%3E %3Cpath d='M12, 5 L12, 3' stroke-linecap='round'/%3E %3Cpath d='M18, 6.5 L19, 5' stroke-linecap='round'/%3E %3Cpath d='M21, 10 L22.5, 9' stroke-linecap='round'/%3E %3Cpath d='M1.5, 10 L3, 9' stroke-linecap='round' transform='translate(2.250000, 9.500000) scale(1, -1) translate(-2.250000, -9.500000)'/%3E %3Cpath d='M5, 6.5 L6, 5' stroke-linecap='round' transform='translate(5.500000, 5.750000) scale(-1, 1) translate(-5.500000, -5.750000)'/%3E %3C/g%3E %3C/svg%3E");
    background-position: center calc(50% + 0.1rem);
  }
}

.vjs-fullscreen-control {
  order: 2;
}

.vjs-button--theater-mode.vjs-button {
  display: none;

  @media (min-width: $breakpoint-medium) {
    display: block;
    order: 1;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='14' viewBox='0 -2 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-monitor'%3E%3Crect x='2' y='3' width='20' height='14' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='8' y1='21' x2='16' y2='21'%3E%3C/line%3E%3Cline x1='12' y1='17' x2='12' y2='21'%3E%3C/line%3E%3C/svg%3E");
  }

  &:focus:not(:focus-visible) {
    // Need to repeat these styles because of video.js weirdness
    // see: https://github.com/lbryio/lbry-desktop/pull/5549#discussion_r580406932
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='14' viewBox='0 -2 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-monitor'%3E%3Crect x='2' y='3' width='20' height='14' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='8' y1='21' x2='16' y2='21'%3E%3C/line%3E%3Cline x1='12' y1='17' x2='12' y2='21'%3E%3C/line%3E%3C/svg%3E");
  }
}

.button--link {
  color: var(--color-link);
  transition: color 0.2s;
  word-break: break-all;
  font-weight: var(--font-weight-bold);

  &:hover {
    text-decoration: underline;
    color: var(--color-link-hover);
  }
}

.button--danger {
  @extend .button--link;
  color: var(--color-error);
}

.button--uri-indicator {
  @extend .button--link;
  color: var(--color-text-subtitle);
  max-width: 100%;
  text-align: left;
  transition: color 0.2s;

  .channel-name {
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }

  .markdown-preview & {
    height: initial;
    vertical-align: initial;
  }
}

.button--close {
  z-index: 1;
  position: absolute;
  top: var(--spacing-xxs);
  right: var(--spacing-xxs);
  padding: 0.3rem;
  transition: all var(--transition-duration) var(--transition-style);
  border-radius: var(--card-radius);
  color: var(--color-text);
  font-size: var(--font-body);

  svg {
    height: 1rem;
    width: 1rem;
  }

  &:hover {
    color: var(--color-button-primary-text);
    background-color: var(--color-button-primary-bg);
  }

  &:focus {
    @include focus;
  }

  @media (max-width: $breakpoint-small) {
    padding: 0.8rem 0.8rem;
  }
}

.button--header-close {
  background-color: var(--color-primary-alt);
  padding: var(--spacing-s);
}

.button--download-link {
  .button__label {
    white-space: normal;
    text-align: left;
  }
}

.button--file-action {
  @extend .button--alt;
  background-color: transparent;
  margin-right: var(--spacing-m);
  padding: 0 var(--spacing-xxs);

  .icon {
    stroke: #777;
  }

  .button__label {
    min-width: 10px;
  }

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

  &:hover {
    background-color: var(--color-button-alt-bg);
  }

  &:focus {
    box-shadow: none;
  }
}

.button--fire {
  color: var(--color-fire);
  position: relative;

  path {
    stroke: var(--color-fire-outside);
  }
}

.button__fire-particle {
  position: absolute;
  top: 60%;
  left: 20%;
  width: 2px;
  height: 2px;
  background-color: #ef5a00;
  border-radius: 50%;
  filter: drop-shadow(0 0 10px #d43322);
  animation-iteration-count: 2;
  animation-fill-mode: both;
}

.button__fire-glow {
  width: 1px;
  height: 1px;
  left: var(--spacing-s);
  bottom: var(--spacing-m);
  position: absolute;
  box-shadow: 4px 0px 10px 10px var(--color-glow);
  animation: glowDecay 2.5s ease-out;
  opacity: 0;
}

.button__fire-particle1 {
  @extend .button__fire-particle;
  right: 10%;
  top: 40%;
  animation: particleUp 1.5s ease-out 0;
  animation-iteration-count: 2;
  animation-fill-mode: both;
}
.button__fire-particle2 {
  @extend .button__fire-particle;
  animation: particleUp2 2s ease-out 0;
  animation-iteration-count: 2;
  animation-fill-mode: both;
}
.button__fire-particle3 {
  @extend .button__fire-particle;
  animation: particleUp3 2.2s ease-out 0;
  animation-iteration-count: 2;
  animation-fill-mode: both;
}
.button__fire-particle4 {
  @extend .button__fire-particle1;
  animation-delay: 0.5s;
}
.button__fire-particle5 {
  @extend .button__fire-particle2;
  animation-delay: 0.75s;
}
.button__fire-particle6 {
  @extend .button__fire-particle3;
  animation-delay: 0.25s;
}

@keyframes glowDecay {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

@keyframes particleUp {
  0% {
    opacity: 0;
    left: 0;
  }
  20% {
    opacity: 1;
    right: 10%;
  }

  50% {
    right: 20%;
  }

  50% {
    left: 10%;
  }
  80% {
    opacity: 1;
    right: 40%;
  }
  100% {
    opacity: 0;
    top: -50%;
    transform: scale(0.5);
  }
}

@keyframes particleUp2 {
  0% {
    opacity: 0;
    right: 0;
  }
  20% {
    opacity: 1;
    left: 10%;
  }

  50% {
    left: 20%;
  }

  50% {
    right: 10%;
  }
  80% {
    opacity: 1;
    left: 40%;
  }
  100% {
    opacity: 0;
    top: -50%;
    transform: scale(0.5);
  }
}

@keyframes particleUp3 {
  0% {
    opacity: 0;
    left: 30%;
  }
  20% {
    opacity: 1;
    left: 60%;
  }

  40% {
    left: 50%;
  }

  80% {
    opacity: 1;
    right: 80%;
  }
  100% {
    opacity: 0;
    top: -50%;
    transform: scale(0.5);
  }
}

.button--slime {
  color: var(--color-slime);
}

.button__slime-drop {
  position: absolute;
  top: 60%;
  left: 15%;
  width: 5px;
  height: 5px;
  background-color: #81c554;
  border-radius: 50%;
  filter: drop-shadow(0 0 10px #d43322);
  animation-iteration-count: 2;
  animation-fill-mode: both;
}

.button__slime-drop1 {
  @extend .button__slime-drop;
  top: 40%;
  animation: dropDown 1.5s ease-out 0;
  animation-iteration-count: 1;
  animation-fill-mode: both;
}

.button__slime-drop2 {
  @extend .button__slime-drop;
  left: 35%;
  top: 40%;
  animation: dropDown2 1.5s ease-out 0;
  animation-iteration-count: 1;
  animation-fill-mode: both;
}

.button__slime-stain {
  width: 1px;
  height: 1px;
  left: var(--spacing-s);
  bottom: var(--spacing-m);
  position: absolute;
  box-shadow: 4px 0px 10px 10px var(--color-slime);
  animation: glowDecay 2.5s ease-out;
  opacity: 0;
}

@keyframes dropDown {
  0% {
    opacity: 1;
    top: 50%;
  }
  70% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    top: 80%;
    transform: scale(0.5, 4);
  }
}

@keyframes dropDown2 {
  0% {
    opacity: 1;
    top: 50%;
  }
  60% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    top: 80%;
    transform: scale(0.5, 6);
  }
}

.button--disabled {
  opacity: 0.5;
}

.button--highlighted {
  border: 1px solid var(--color-border);
}

.button--emoji {
  font-size: 1.1rem;
  border-radius: 3rem;
}

.button__content {
  display: flex;
  align-items: center;
  min-width: 0;
  height: 100%;
}

.button__label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

// Handle icons on the left or right side of the button label
svg + .button__label {
  margin-left: var(--spacing-s);
}

.button__label + svg {
  margin-left: var(--spacing-xs);
}

.button-toggle {
  padding: 0 var(--spacing-m);
  height: var(--height-button);
  font-size: var(--font-base);
  border: 1px solid var(--color-border);
  border-left-width: 0;
  border-radius: 0;
  margin: 0;
  background-color: var(--color-card-background);
  color: var(--color-text);

  @media (max-width: $breakpoint-small) {
    padding: var(--spacing-m) var(--spacing-s);
  }

  &:first-of-type {
    border-left-width: 1px;
    border-top-left-radius: var(--border-radius);
    border-bottom-left-radius: var(--border-radius);
  }

  &:last-of-type {
    border-top-right-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
  }
}

.button-toggle--expandformobile {
  @media (max-width: $breakpoint-small) {
    display: block;
    width: 100%;
    text-align: center;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);

    &:not(:first-of-type) {
      margin-top: var(--spacing-s);
    }
  }
}

.button-toggle--active {
  //color: var(--color-primary);
  //background-color: var(--color-primary-alt);
  color: var(--color-button-toggle-text);
  background-color: var(--color-button-toggle-bg);

  svg {
    opacity: 1;
  }

  &:hover {
    cursor: default;
    text-decoration: none;
    background-color: var(--color-primary-alt);
  }
}

.button-toggle--custom {
  color: var(--color-primary);
  svg {
    opacity: 1;
  }
}

.button-toggle__label {
  @extend label;
  display: inline-block;
  margin-top: -4px;
}

.button-tab-group {
  margin-bottom: var(--spacing-l);
}

.button-group,
.button-tab-group {
  display: flex;

  .button:first-child:not(:only-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: 1px solid var(--color-button-border);
  }

  .button:nth-child(2) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }
}

.button--file-action {
  &:first-child {
    margin-right: var(--spacing-s);
  }
}

.button-toggle-group-action {
  position: absolute; // Centers the button along toggle buttons

  @media (max-width: $breakpoint-small) {
    position: relative;
    top: var(--spacing-s);
  }
}

.button--hash-id {
  @include font-mono;
}