/* -------------------------------- 

File#: _1_button-effects
Title: Button Effects
Descr: A collection of button effects
Usage: codyhouse.co/license

-------------------------------- */
.btn-fx-1 {
  --border-radius: 0.25em;
  --transition-duration: .3s;
  background-color: var(--color-primary);
  position: relative;
  display: inline-block;
  border-radius: var(--border-radius);
  line-height: 1;
  text-decoration: none;
  color: var(--color-white);
  transition: var(--transition-duration);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
}
.btn-fx-1 span, .btn-fx-1 .btn-fx-1__icon-wrapper {
  position: relative;
  z-index: 2;
}
.btn-fx-1 .icon {
  display: block;
  /*will-change: transform;*/
  /*transition: var(--transition-duration);*/
}
.btn-fx-1 .icon:first-child {
  color: var(--color-white);
}

.btn-fx-1:focus {
  outline: none;
  box-shadow: 0 0 0 1px var(--color-bg), 0 0 0 3px var(--color-primary);
}

.btn-fx-1__inner {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  background-color: hsla(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l), 0.15);
  overflow: hidden;
  -webkit-clip-path: inset(0% 0% 0% 0% round var(--border-radius));
          clip-path: inset(0% 0% 0% 0% round var(--border-radius));
}

.btn-fx-2 {
  position: relative;
  line-height: 1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
}
.btn-fx-2 span {
  position: relative;
  display: inline-flex;
  -webkit-clip-path: inset(0%);
          clip-path: inset(0%);
}
.btn-fx-2 em {
  display: inline-flex;
}
.btn-fx-2 em * {
  color: var(--color-primary);
  padding: 0.25em 0;
  will-change: transform;
  transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  transition: transform 0.3s, -webkit-transform 0.3s;
}
.btn-fx-2 em:last-child {
  position: absolute;
  top: 0;
  left: 0;
}
.btn-fx-2 em:last-child * {
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
}
.btn-fx-2::before, .btn-fx-2::after {
  content: "";
  position: absolute;
  bottom: 0;
  height: 2px;
  left: 0;
  width: 100%;
}
.btn-fx-2::before {
  background-color: hsla(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l), 0.2);
}
.btn-fx-2::after {
  background-color: var(--color-primary);
  -webkit-transform: scaleX(0);
          transform: scaleX(0);
  transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  transition: transform 0.3s, -webkit-transform 0.3s;
  -webkit-transform-origin: right center;
          transform-origin: right center;
}
.btn-fx-2:hover em *:nth-child(2) {
  transition-delay: 0.05s;
}
.btn-fx-2:hover em *:nth-child(3) {
  transition-delay: 0.1s;
}
.btn-fx-2:hover em *:nth-child(4) {
  transition-delay: 0.15s;
}
.btn-fx-2:hover em *:nth-child(5) {
  transition-delay: 0.2s;
}
.btn-fx-2:hover em *:nth-child(6) {
  transition-delay: 0.25s;
}
.btn-fx-2:hover em *:nth-child(7) {
  transition-delay: 0.3s;
}
.btn-fx-2:hover em *:nth-child(8) {
  transition-delay: 0.35s;
}
.btn-fx-2:hover em *:nth-child(9) {
  transition-delay: 0.4s;
}
.btn-fx-2:hover em *:nth-child(10) {
  transition-delay: 0.45s;
}
.btn-fx-2:hover em:first-child * {
  -webkit-transform: translateY(-100%);
          transform: translateY(-100%);
}
.btn-fx-2:hover em:last-child * {
  -webkit-transform: translateY(0);
          transform: translateY(0);
}
.btn-fx-2:hover::after {
  -webkit-transform: scaleX(1);
          transform: scaleX(1);
  -webkit-transform-origin: left center;
          transform-origin: left center;
}

.btn-fx-3 {
  --transition-duration: 0.3s;
  position: relative;
  display: inline-block;
  color: var(--color-bg);
  line-height: 1;
  text-decoration: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  will-change: transform;
  transition: -webkit-transform var(--transition-duration);
  transition: transform var(--transition-duration);
  transition: transform var(--transition-duration), -webkit-transform var(--transition-duration);
}
.btn-fx-3 span {
  will-change: transform;
  transition: opacity var(--transition-duration), -webkit-transform var(--transition-duration) var(--ease-out);
  transition: opacity var(--transition-duration), transform var(--transition-duration) var(--ease-out);
  transition: opacity var(--transition-duration), transform var(--transition-duration) var(--ease-out), -webkit-transform var(--transition-duration) var(--ease-out);
}
.btn-fx-3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-contrast-higher);
  border-radius: inherit;
  will-change: transform;
  transition: box-shadow var(--transition-duration), -webkit-transform var(--transition-duration) var(--ease-out-back);
  transition: transform var(--transition-duration) var(--ease-out-back), box-shadow var(--transition-duration);
  transition: transform var(--transition-duration) var(--ease-out-back), box-shadow var(--transition-duration), -webkit-transform var(--transition-duration) var(--ease-out-back);
}
.btn-fx-3:active {
  -webkit-transform: scale(0.9);
          transform: scale(0.9);
}
.btn-fx-3:hover span {
  opacity: 0;
  -webkit-transform: scale(0.5);
          transform: scale(0.5);
}
.btn-fx-3:hover::before {
  -webkit-transform: scale(1.1);
          transform: scale(1.1);
}
.btn-fx-3:hover .btn-fx-3__icon-wrapper {
  -webkit-transform: translateY(0);
          transform: translateY(0);
}
.btn-fx-3:focus {
  outline: none;
}
.btn-fx-3:focus::before {
  box-shadow: var(--shadow-sm), 0 0 0 3px hsla(var(--color-contrast-higher-h), var(--color-contrast-higher-s), var(--color-contrast-higher-l), 0.15);
}

.btn-fx-3__inner {
  position: relative;
  z-index: 2;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  -webkit-clip-path: inset(0%);
          clip-path: inset(0%);
}

.btn-fx-3__icon-wrapper {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  will-change: transform;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
  transition: -webkit-transform var(--transition-duration) var(--ease-out);
  transition: transform var(--transition-duration) var(--ease-out);
  transition: transform var(--transition-duration) var(--ease-out), -webkit-transform var(--transition-duration) var(--ease-out);
}
.btn-fx-3__icon-wrapper .icon {
  margin: auto;
}

.btn-fx-4 {
  --transition-duration: .3s;
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  background-color: var(--color-contrast-higher);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  line-height: 1;
  text-decoration: none;
  color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: var(--transition-duration);
}
.btn-fx-4 span {
  position: relative;
  z-index: 2;
}
.btn-fx-4::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: hsla(var(--color-bg-h), var(--color-bg-s), var(--color-bg-l), 0.25);
  will-change: transform;
  -webkit-transform: skewX(-15deg) translate(calc(-100% - 0.5em));
          transform: skewX(-15deg) translate(calc(-100% - 0.5em));
  pointer-events: none;
}
.btn-fx-4:hover::before {
  -webkit-transform: skewX(-15deg) translate(calc(100% + 0.5em));
          transform: skewX(-15deg) translate(calc(100% + 0.5em));
  transition: -webkit-transform var(--transition-duration);
  transition: transform var(--transition-duration);
  transition: transform var(--transition-duration), -webkit-transform var(--transition-duration);
}
.btn-fx-4:focus {
  outline: none;
  box-shadow: var(--shadow-sm), 0 0 0 3px hsla(var(--color-contrast-higher-h), var(--color-contrast-higher-s), var(--color-contrast-higher-l), 0.15);
}