.kfa-fade-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-in-kf 0.8s ease-out both;
}
@keyframes kfa-fade-in-kf {
  from { opacity: 0; }
  to { opacity: 1; }
}

.kfa-fade-in-up {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-in-up-kf 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes kfa-fade-in-up-kf {
  from { opacity: 0; transform: translateY(1.75em); }
  to { opacity: 1; transform: none; }
}

.kfa-fade-in-down {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 0;
  animation: kfa-fade-in-down-kf 0.5s cubic-bezier(0.25, 1, 0.5, 1) both;
}
@keyframes kfa-fade-in-down-kf {
  from { opacity: 0; transform: translateY(-1.25em) scale(0.96); }
  to { opacity: 1; transform: none; }
}

.kfa-fade-in-left {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation:
    kfa-fade-in-left-fade 0.45s linear both,
    kfa-fade-in-left-move 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes kfa-fade-in-left-fade {
  from { opacity: 0; }
}
@keyframes kfa-fade-in-left-move {
  from { transform: translateX(-3em); }
}

.kfa-fade-in-right {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-in-right-kf 0.75s cubic-bezier(0.33, 1, 0.68, 1) both;
}
@keyframes kfa-fade-in-right-kf {
  0% { opacity: 0; transform: translateX(2.5em); }
  40% { opacity: 1; }
  100% { opacity: 1; transform: none; }
}

.kfa-slide-in-left {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-in-left-kf 0.7s cubic-bezier(0.32, 0.72, 0, 1) both;
}
@keyframes kfa-slide-in-left-kf {
  from { transform: translateX(-9em); }
  to { transform: translateX(0); }
}

.kfa-slide-in-right {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-in-right-kf 0.8s both;
}
@keyframes kfa-slide-in-right-kf {
  0% {
    transform: translateX(9em);
    animation-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
  }
  70% {
    transform: translateX(-0.4em);
    animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1);
  }
  100% { transform: translateX(0); }
}

.kfa-slide-in-up {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-in-up-kf 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}
/* The bottom inset tracks the translate, so the clip line stays on the final bottom edge. */
@keyframes kfa-slide-in-up-kf {
  from {
    transform: translateY(100%);
    clip-path: inset(0 -1em 100% -1em);
  }
  to {
    transform: translateY(0);
    clip-path: inset(-1em -1em -2em -1em);
  }
}

.kfa-slide-in-down {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-in-down-kf 0.75s both;
}
@keyframes kfa-slide-in-down-kf {
  0% {
    transform: translateY(-100%);
    clip-path: inset(100% -1em 0 -1em);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  70% {
    transform: translateY(0.35em);
    clip-path: inset(-0.35em -1em -2em -1em);
    animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1);
  }
  100% {
    transform: translateY(0);
    clip-path: inset(0 -1em -2em -1em);
  }
}

.kfa-zoom-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-zoom-in-kf 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes kfa-zoom-in-kf {
  0% { opacity: 0; transform: scale(0.3); }
  50% { opacity: 1; }
  100% { opacity: 1; transform: scale(1); }
}

.kfa-zoom-in-up {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-zoom-in-up-kf 0.8s both;
}
@keyframes kfa-zoom-in-up-kf {
  0% {
    opacity: 0;
    transform: translateY(3em) scale(0.3);
    animation-timing-function: cubic-bezier(0.11, 0, 0.5, 0);
  }
  25% { opacity: 1; }
  55% {
    opacity: 1;
    transform: translateY(-0.8em) scale(0.5);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  100% { opacity: 1; transform: none; }
}

.kfa-scale-up-center {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-scale-up-center-kf 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes kfa-scale-up-center-kf {
  from { transform: scale(0.5); }
  to { transform: scale(1); }
}

.kfa-puff-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-puff-in-kf 0.6s cubic-bezier(0.47, 0, 0.75, 0.72) both;
}
@keyframes kfa-puff-in-kf {
  from { opacity: 0; transform: scale(1.7); filter: blur(0.3em); }
  to { opacity: 1; transform: scale(1); filter: blur(0); }
}

.kfa-bounce-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-bounce-in-kf 0.8s cubic-bezier(0.215, 0.61, 0.355, 1) both;
}
@keyframes kfa-bounce-in-kf {
  0% { opacity: 0; transform: scale(0.2); }
  35% { opacity: 1; transform: scale(1.12); }
  55% { transform: scale(0.93); }
  72% { transform: scale(1.04); }
  87% { transform: scale(0.985); }
  100% { opacity: 1; transform: scale(1); }
}

.kfa-bounce-in-down {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 100%;
  animation: kfa-bounce-in-down-kf 1s both;
}
@keyframes kfa-bounce-in-down-kf {
  0% {
    opacity: 0;
    transform: translateY(-2.4em) scale(0.94, 1.1);
    animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45);
  }
  40% {
    opacity: 1;
    transform: translateY(0) scale(1.14, 0.84);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  58% {
    transform: translateY(-0.9em) scale(0.97, 1.04);
    animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45);
  }
  74% {
    transform: translateY(0) scale(1.06, 0.94);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  86% {
    transform: translateY(-0.2em) scale(1);
    animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45);
  }
  100% { opacity: 1; transform: none; }
}

.kfa-bounce-in-up {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-bounce-in-up-kf 0.9s both;
}
@keyframes kfa-bounce-in-up-kf {
  0% {
    opacity: 0;
    transform: translateY(2.2em) scale(0.9, 1.2);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  45% {
    opacity: 1;
    transform: translateY(-0.75em) scale(0.97, 1.04);
    animation-timing-function: cubic-bezier(0.32, 0, 0.67, 0);
  }
  65% {
    transform: translateY(0.12em) scale(1.06, 0.94);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  80% {
    transform: translateY(-0.18em) scale(0.99, 1.01);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  100% { opacity: 1; transform: none; }
}

.kfa-bounce-in-left {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-bounce-in-left-kf 1s cubic-bezier(0.215, 0.61, 0.355, 1) both;
}
@keyframes kfa-bounce-in-left-kf {
  0% { opacity: 0; transform: translateX(-8em) scaleX(1.4); }
  50% { opacity: 1; transform: translateX(0.8em) scaleX(0.9); }
  68% { transform: translateX(-0.35em) scaleX(1.03); }
  84% { transform: translateX(0.12em) scaleX(0.99); }
  100% { opacity: 1; transform: none; }
}

.kfa-back-in-up {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-back-in-up-kf 0.9s both;
}
@keyframes kfa-back-in-up-kf {
  0% {
    opacity: 0;
    transform: translateY(3em) scale(0.7);
    animation-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
  }
  65% {
    opacity: 0.7;
    transform: translateY(0) scale(0.7);
    animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
  }
  100% { opacity: 1; transform: scale(1); }
}

.kfa-back-in-left {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-back-in-left-kf 1s both;
}
@keyframes kfa-back-in-left-kf {
  0% {
    opacity: 0.7;
    transform: translateX(-9em) scale(0.7);
    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  }
  58%, 64% {
    opacity: 0.7;
    transform: translateX(0) scale(0.7);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  88% { opacity: 1; transform: scale(1.04); }
  100% { opacity: 1; transform: scale(1); }
}

.kfa-flip-in-x {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-flip-in-x-kf 0.9s ease-in both;
}
@keyframes kfa-flip-in-x-kf {
  0% { opacity: 0; transform: perspective(25em) rotateX(85deg); }
  40% { transform: perspective(25em) rotateX(-18deg); }
  60% { opacity: 1; transform: perspective(25em) rotateX(9deg); }
  80% { transform: perspective(25em) rotateX(-4deg); }
  100% { opacity: 1; transform: perspective(25em) rotateX(0); }
}

.kfa-flip-in-y {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-flip-in-y-kf 0.8s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}
@keyframes kfa-flip-in-y-kf {
  0% { opacity: 0; transform: perspective(25em) rotateY(-90deg); }
  30% { opacity: 1; }
  100% { opacity: 1; transform: perspective(25em) rotateY(0); }
}

.kfa-swing-in-top {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 0;
  animation: kfa-swing-in-top-kf 1s both;
}
@keyframes kfa-swing-in-top-kf {
  0% {
    opacity: 0;
    transform: perspective(25em) rotateX(-80deg);
    animation-timing-function: cubic-bezier(0.11, 0, 0.5, 0);
  }
  38% {
    opacity: 1;
    transform: perspective(25em) rotateX(0);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  54% {
    transform: perspective(25em) rotateX(22deg);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  70% {
    transform: perspective(25em) rotateX(-9deg);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  85% {
    transform: perspective(25em) rotateX(3deg);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  100% { opacity: 1; transform: perspective(25em) rotateX(0); }
}

.kfa-rotate-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-rotate-in-kf 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes kfa-rotate-in-kf {
  from { opacity: 0; transform: rotate(-200deg) scale(0.5); }
  to { opacity: 1; transform: rotate(0) scale(1); }
}

.kfa-rotate-in-down-left {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 0 100%;
  animation: kfa-rotate-in-down-left-kf 0.8s cubic-bezier(0.34, 1.3, 0.64, 1) both;
}
@keyframes kfa-rotate-in-down-left-kf {
  0% { opacity: 0; transform: rotate(-45deg); }
  40% { opacity: 1; }
  100% { opacity: 1; transform: rotate(0); }
}

.kfa-roll-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-roll-in-kf 0.9s cubic-bezier(0.25, 1, 0.5, 1) both;
}
@keyframes kfa-roll-in-kf {
  from { opacity: 0; transform: translateX(-7.2em) rotate(-120deg); }
  to { opacity: 1; transform: translateX(0) rotate(0); }
}

.kfa-light-speed-in-right {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-light-speed-in-right-kf 0.7s both;
}
@keyframes kfa-light-speed-in-right-kf {
  0% {
    opacity: 0;
    transform: translateX(8em) skewX(-30deg);
    animation-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
  }
  55% {
    opacity: 1;
    transform: translateX(0) skewX(18deg);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  78% {
    transform: translateX(0) skewX(-6deg);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  100% { opacity: 1; transform: translateX(0) skewX(0); }
}

.kfa-tilt-in {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-tilt-in-kf 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes kfa-tilt-in-kf {
  from {
    opacity: 0;
    transform: perspective(28em) translate3d(2em, -1.25em, -5em) rotateX(45deg) rotateY(-35deg);
  }
  to {
    opacity: 1;
    transform: perspective(28em) translate3d(0, 0, 0) rotateX(0) rotateY(0);
  }
}

.kfa-scale-up-bottom {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 100%;
  animation: kfa-scale-up-bottom-kf 0.8s both;
}
@keyframes kfa-scale-up-bottom-kf {
  0% {
    transform: scaleY(0);
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
  }
  50% {
    transform: scaleY(1.12);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  72% {
    transform: scaleY(0.95);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  88% {
    transform: scaleY(1.02);
    animation-timing-function: cubic-bezier(0.37, 0, 0.63, 1);
  }
  100% { transform: scaleY(1); }
}

.kfa-fade-in-blur {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-in-blur-kf 0.9s cubic-bezier(0.25, 1, 0.5, 1) both;
}
@keyframes kfa-fade-in-blur-kf {
  from { opacity: 0; filter: blur(0.6em); }
  to { opacity: 1; filter: blur(0); }
}

.kfa-slide-in-blurred {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 100% 50%;
  animation: kfa-slide-in-blurred-kf 0.6s cubic-bezier(0.23, 1, 0.32, 1) both;
}
@keyframes kfa-slide-in-blurred-kf {
  from {
    opacity: 0;
    transform: translateX(-6em) scale(2, 0.25);
    filter: blur(0.5em);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: blur(0);
  }
}

.kfa-shake-x {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-shake-x-jolt 0.8s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}
@keyframes kfa-shake-x-jolt {
  0%, 100% { transform: translateX(0); }
  10% { transform: translateX(-0.9em); }
  22% { transform: translateX(0.8em); }
  34% { transform: translateX(-0.62em); }
  46% { transform: translateX(0.44em); }
  58% { transform: translateX(-0.26em); }
  70% { transform: translateX(0.12em); }
  82% { transform: translateX(-0.04em); }
}

.kfa-heartbeat {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-heartbeat-beat 1.5s infinite;
}
.kfa-heartbeat-icon {
  width: 2.6em;
  height: 2.6em;
}
@keyframes kfa-heartbeat-beat {
  0% { transform: scale(1); animation-timing-function: cubic-bezier(0.2, 0, 0.4, 1); }
  10% { transform: scale(1.14); animation-timing-function: cubic-bezier(0.5, 0, 0.6, 1); }
  20% { transform: scale(1.02); animation-timing-function: cubic-bezier(0.2, 0, 0.4, 1); }
  30% { transform: scale(1.24); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  50%, 100% { transform: scale(1); }
}

.kfa-pulse {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-pulse-throb 1.6s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes kfa-pulse-throb {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.kfa-bounce {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 100%;
  animation: kfa-bounce-hops 1.2s both;
}
@keyframes kfa-bounce-hops {
  /* launch, then fall with gravity */
  0% { transform: translateY(0) scale(1, 1); animation-timing-function: cubic-bezier(0.25, 0.8, 0.4, 1); }
  16% { transform: translateY(-1.8em) scale(0.98, 1.03); animation-timing-function: cubic-bezier(0.55, 0, 0.85, 0.35); }
  30% { transform: translateY(0) scale(0.95, 1.06); animation-timing-function: ease-out; }
  /* squash on landing, rebound lower each time */
  35% { transform: translateY(0) scale(1.12, 0.88); animation-timing-function: cubic-bezier(0.25, 0.8, 0.4, 1); }
  47% { transform: translateY(-0.8em) scale(0.99, 1.02); animation-timing-function: cubic-bezier(0.55, 0, 0.85, 0.35); }
  58% { transform: translateY(0) scale(0.98, 1.03); animation-timing-function: ease-out; }
  62% { transform: translateY(0) scale(1.06, 0.94); animation-timing-function: cubic-bezier(0.25, 0.8, 0.4, 1); }
  70% { transform: translateY(-0.28em) scale(1, 1); animation-timing-function: cubic-bezier(0.55, 0, 0.85, 0.35); }
  78% { transform: translateY(0) scale(1, 1); animation-timing-function: ease-out; }
  82% { transform: translateY(0) scale(1.03, 0.97); animation-timing-function: ease-in-out; }
  90%, 100% { transform: translateY(0) scale(1, 1); }
}

.kfa-head-shake {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-head-shake-no 1s ease-in-out both;
}
@keyframes kfa-head-shake-no {
  0%, 88%, 100% { transform: perspective(14em) translateX(0) rotateY(0); }
  12% { transform: perspective(14em) translateX(-0.35em) rotateY(-32deg); }
  30% { transform: perspective(14em) translateX(0.28em) rotateY(26deg); }
  48% { transform: perspective(14em) translateX(-0.18em) rotateY(-17deg); }
  64% { transform: perspective(14em) translateX(0.08em) rotateY(8deg); }
  77% { transform: perspective(14em) translateX(0) rotateY(-2.5deg); }
}

.kfa-tada {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-tada-cheer 1s ease-in-out both;
}
@keyframes kfa-tada-cheer {
  0%, 100% { transform: scale(1) rotate(0); }
  10%, 18% { transform: scale(0.9) rotate(-3deg); }
  28%, 48%, 68% { transform: scale(1.12) rotate(4deg); }
  38%, 58% { transform: scale(1.12) rotate(-4deg); }
  78% { transform: scale(1.08) rotate(2deg); }
  88% { transform: scale(1.02) rotate(-1deg); }
}

.kfa-rubber-band {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-rubber-band-snap 1s both;
}
@keyframes kfa-rubber-band-snap {
  0% { transform: scale(1, 1); animation-timing-function: cubic-bezier(0.4, 0, 0.6, 1); }
  /* slow pull, then release */
  30% { transform: scale(1.28, 0.76); animation-timing-function: cubic-bezier(0.3, 0, 0.3, 1); }
  42% { transform: scale(0.8, 1.2); animation-timing-function: ease-in-out; }
  54% { transform: scale(1.14, 0.88); animation-timing-function: ease-in-out; }
  66% { transform: scale(0.95, 1.05); animation-timing-function: ease-in-out; }
  78% { transform: scale(1.03, 0.98); animation-timing-function: ease-in-out; }
  90%, 100% { transform: scale(1, 1); }
}

.kfa-wobble {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-wobble-rock 1s ease-in-out both;
}
@keyframes kfa-wobble-rock {
  0%, 100% { transform: translateX(0) rotate(0); }
  15% { transform: translateX(-1.3em) rotate(-6deg); }
  30% { transform: translateX(1em) rotate(4.5deg); }
  45% { transform: translateX(-0.7em) rotate(-3deg); }
  60% { transform: translateX(0.4em) rotate(1.8deg); }
  75% { transform: translateX(-0.15em) rotate(-0.8deg); }
}

.kfa-jello {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-jello-jiggle 1s ease-in-out both;
}
@keyframes kfa-jello-jiggle {
  0%, 100% { transform: skew(0, 0) scale(1, 1); }
  12% { transform: skew(-14deg, -4deg) scale(1.05, 0.95); }
  26% { transform: skew(10deg, 3deg) scale(0.97, 1.03); }
  40% { transform: skew(-6deg, -2deg) scale(1.02, 0.98); }
  54% { transform: skew(3.5deg, 1deg) scale(1, 1); }
  68% { transform: skew(-1.6deg, -0.5deg) scale(1, 1); }
  82% { transform: skew(0.6deg, 0.2deg) scale(1, 1); }
}

.kfa-swing {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 0;
  animation: kfa-swing-sway 1.2s ease-in-out both;
}
@keyframes kfa-swing-sway {
  0%, 100% { transform: rotate(0); }
  16% { transform: rotate(15deg); }
  34% { transform: rotate(-10deg); }
  52% { transform: rotate(6deg); }
  68% { transform: rotate(-3.5deg); }
  82% { transform: rotate(1.5deg); }
}

.kfa-flash {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-flash-strobe 1s ease-in-out both;
}
@keyframes kfa-flash-strobe {
  0%, 30%, 60%, 100% { opacity: 1; }
  15%, 45% { opacity: 0; }
}

.kfa-pop {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-pop-spring 0.55s both;
}
@keyframes kfa-pop-spring {
  0% { transform: scale(1); animation-timing-function: cubic-bezier(0.4, 0, 1, 1); }
  18% { transform: scale(0.84); animation-timing-function: cubic-bezier(0, 0, 0.3, 1); }
  48% { transform: scale(1.16); animation-timing-function: ease-in-out; }
  68% { transform: scale(0.96); animation-timing-function: ease-in-out; }
  84% { transform: scale(1.03); animation-timing-function: ease-in-out; }
  100% { transform: scale(1); }
}

.kfa-head-nod {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 85%;
  animation: kfa-head-nod-yes 1s ease-in-out both;
}
@keyframes kfa-head-nod-yes {
  0%, 86%, 100% { transform: perspective(14em) translateY(0) rotateX(0); }
  14% { transform: perspective(14em) translateY(0.22em) rotateX(-30deg); }
  32% { transform: perspective(14em) translateY(-0.06em) rotateX(8deg); }
  50% { transform: perspective(14em) translateY(0.16em) rotateX(-22deg); }
  68% { transform: perspective(14em) translateY(0) rotateX(4deg); }
}

.kfa-ping {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  position: relative;
  isolation: isolate;
}
.kfa-ping::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--c);
  animation: kfa-ping-ring 1.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes kfa-ping-ring {
  0% { transform: scale(1); opacity: 0.75; }
  75%, 100% { transform: scale(1.8); opacity: 0; }
}

.kfa-spin {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-spin-turn 1s linear infinite;
}
.kfa-spin-icon {
  width: 2.4em;
  height: 2.4em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
@keyframes kfa-spin-turn {
  to { transform: rotate(360deg); }
}

.kfa-float {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-float-drift 3s ease-in-out infinite;
}
@keyframes kfa-float-drift {
  0%, 100% { transform: translateY(0); box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent); }
  50% { transform: translateY(-0.8em); box-shadow: 0 1.5em 1.6em -0.9em color-mix(in srgb, var(--c) 35%, transparent); }
}

.kfa-bounce-up-and-down {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-bounce-up-and-down-hop 1s infinite;
}
@keyframes kfa-bounce-up-and-down-hop {
  0%, 100% { transform: translateY(-1.4em); animation-timing-function: cubic-bezier(0.8, 0, 1, 1); }
  50% { transform: translateY(0); animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
}

.kfa-jump {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 100%;
  animation: kfa-jump-leap 2s infinite;
}
@keyframes kfa-jump-leap {
  0% { transform: translateY(0) scale(1, 1); animation-timing-function: ease-in-out; }
  /* crouch and hold */
  9%, 13% { transform: translateY(0) scale(1.14, 0.84); animation-timing-function: cubic-bezier(0.3, 0, 0.5, 1); }
  /* take off stretched, slow into the top */
  19% { transform: translateY(-0.8em) scale(0.88, 1.16); animation-timing-function: cubic-bezier(0.2, 0.6, 0.35, 1); }
  31% { transform: translateY(-1.9em) scale(1, 1); animation-timing-function: cubic-bezier(0.55, 0, 0.8, 0.4); }
  /* fall, squash, settle */
  41% { transform: translateY(0) scale(0.92, 1.1); animation-timing-function: ease-out; }
  45% { transform: translateY(0) scale(1.18, 0.82); animation-timing-function: ease-in-out; }
  51% { transform: translateY(0) scale(0.96, 1.04); animation-timing-function: ease-in-out; }
  57%, 100% { transform: translateY(0) scale(1, 1); }
}

.kfa-wiggle {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-wiggle-shimmy 2.4s ease-in-out infinite;
}
@keyframes kfa-wiggle-shimmy {
  0%, 30%, 100% { transform: rotate(0); }
  4% { transform: rotate(-10deg); }
  8% { transform: rotate(9deg); }
  12% { transform: rotate(-7deg); }
  16% { transform: rotate(5deg); }
  20% { transform: rotate(-3deg); }
  25% { transform: rotate(1.5deg); }
}

.kfa-vibrate {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-vibrate-buzz 1.4s linear infinite;
}
.kfa-vibrate-icon {
  width: 2.6em;
  height: 2.6em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
@keyframes kfa-vibrate-buzz {
  0%, 30%, 38%, 68%, 100% { transform: translate(0, 0) rotate(0); }
  3%, 9%, 15%, 21%, 27%, 41%, 47%, 53%, 59%, 65% { transform: translate(-0.14em, 0.05em) rotate(-1.5deg); }
  6%, 12%, 18%, 24%, 44%, 50%, 56%, 62% { transform: translate(0.14em, -0.05em) rotate(1.5deg); }
}

.kfa-bell-ring {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 12%;
  animation: kfa-bell-ring-swing 2.2s ease-in-out infinite;
}
.kfa-bell-ring-icon {
  width: 2.6em;
  height: 2.6em;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kfa-bell-ring-clapper {
  transform-box: fill-box;
  transform-origin: 50% -200%;
  animation: kfa-bell-ring-clapper 2.2s ease-in-out infinite;
}
@keyframes kfa-bell-ring-swing {
  0%, 34%, 100% { transform: rotate(0); }
  3% { transform: rotate(16deg); }
  7% { transform: rotate(-14deg); }
  11% { transform: rotate(11deg); }
  15% { transform: rotate(-8deg); }
  19% { transform: rotate(5.5deg); }
  23% { transform: rotate(-3.5deg); }
  27% { transform: rotate(1.5deg); }
}
@keyframes kfa-bell-ring-clapper {
  0%, 38%, 100% { transform: rotate(0); }
  5% { transform: rotate(-26deg); }
  9% { transform: rotate(22deg); }
  13% { transform: rotate(-17deg); }
  17% { transform: rotate(12deg); }
  21% { transform: rotate(-8deg); }
  25% { transform: rotate(5deg); }
  30% { transform: rotate(-2deg); }
}

.kfa-blink {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-blink-toggle 1.1s steps(1, end) infinite;
}
@keyframes kfa-blink-toggle {
  0%, 100% { opacity: 1; }
  55% { opacity: 0; }
}

.kfa-waving-hand {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 70% 90%;
  animation: kfa-waving-hand-hello 2.4s ease-in-out infinite;
}
.kfa-waving-hand-icon {
  width: 2.8em;
  height: 2.8em;
  fill: currentColor;
}
@keyframes kfa-waving-hand-hello {
  0%, 60%, 100% { transform: rotate(0); }
  8% { transform: rotate(16deg); }
  16% { transform: rotate(-9deg); }
  24% { transform: rotate(16deg); }
  32% { transform: rotate(-6deg); }
  40% { transform: rotate(12deg); }
  50% { transform: rotate(-2deg); }
}

.kfa-glow-pulse {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-glow-pulse-halo 2.2s ease-in-out infinite;
}
@keyframes kfa-glow-pulse-halo {
  0%, 100% { box-shadow: 0 0 0.2em 0 color-mix(in srgb, var(--c) 35%, transparent), 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent); }
  50% { box-shadow: 0 0 1.6em 0.3em color-mix(in srgb, var(--c) 85%, transparent), 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent); }
}

.kfa-breathe {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-breathe-cycle 5s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes kfa-breathe-cycle {
  0%, 92%, 100% { transform: scale(0.9); opacity: 0.65; }
  40%, 52% { transform: scale(1.1); opacity: 1; }
}

.kfa-move-left-to-right {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation:
    kfa-move-left-to-right-glide 3s ease-in-out infinite,
    kfa-move-left-to-right-lean 3s ease-in-out infinite;
}
@keyframes kfa-move-left-to-right-glide {
  0%, 100% { translate: -5em 0; }
  50% { translate: 5em 0; }
}
@keyframes kfa-move-left-to-right-lean {
  0%, 50%, 100% { rotate: 0deg; }
  25% { rotate: 7deg; }
  75% { rotate: -7deg; }
}

.kfa-move-in-a-circle {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-move-in-a-circle-orbit 3s linear infinite;
}
@keyframes kfa-move-in-a-circle-orbit {
  from { transform: rotate(0deg) translateX(1.6em) rotate(0deg); }
  to { transform: rotate(360deg) translateX(1.6em) rotate(-360deg); }
}

.kfa-flip-loop {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-flip-loop-turn 2.4s infinite;
}
@keyframes kfa-flip-loop-turn {
  0% { transform: perspective(16em) rotateY(0) scale(1); animation-timing-function: cubic-bezier(0.11, 0, 0.5, 0); }
  20% { transform: perspective(16em) rotateY(180deg) scale(1.08); animation-timing-function: cubic-bezier(0.5, 1, 0.89, 1); }
  40%, 100% { transform: perspective(16em) rotateY(360deg) scale(1); }
}

.kfa-blob-morph {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-blob-morph-melt 6s ease-in-out infinite;
}
@keyframes kfa-blob-morph-melt {
  0%, 100% { border-radius: 42% 58% 62% 38% / 44% 40% 60% 56%; transform: rotate(0deg); }
  33% { border-radius: 68% 32% 46% 54% / 34% 56% 44% 66%; transform: rotate(10deg); }
  66% { border-radius: 36% 64% 30% 70% / 58% 32% 68% 42%; transform: rotate(-8deg); }
}

.kfa-shine {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  position: relative;
  overflow: hidden;
}
.kfa-shine::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgb(255 255 255 / 0.55) 48%, rgb(255 255 255 / 0.15) 56%, transparent 66%);
  transform: translateX(-110%);
  animation: kfa-shine-sweep 2.8s cubic-bezier(0.45, 0, 0.2, 1) infinite;
}
@keyframes kfa-shine-sweep {
  0% { transform: translateX(-110%); }
  36%, 100% { transform: translateX(110%); }
}

.kfa-hinge {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 0 0;
  animation: kfa-hinge-kf 2s both;
}
@keyframes kfa-hinge-kf {
  0% { transform: rotate(0); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  20%, 60% { transform: rotate(80deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  40% { transform: rotate(60deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  /* the last sway, then gravity: ease-in on the drop */
  80% { opacity: 1; transform: rotate(64deg); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
  100% { opacity: 0; transform: translateY(2em) rotate(84deg); }
}

.kfa-jack-in-the-box {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  transform-origin: 50% 100%;
  animation: kfa-jack-in-the-box-kf 1.1s both;
}
@keyframes kfa-jack-in-the-box-kf {
  0% { opacity: 0; transform: scale(0.1) rotate(30deg); animation-timing-function: cubic-bezier(0.2, 0.8, 0.4, 1); }
  38% { opacity: 1; transform: scale(0.94, 1.12) rotate(-12deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  58% { transform: scale(1.04, 0.96) rotate(7deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  76% { transform: scale(1) rotate(-3deg); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  90% { transform: rotate(1deg); }
  100% { opacity: 1; transform: none; }
}

.kfa-fade-in-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-in-on-scroll-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-fade-in-on-scroll {
    animation:
      kfa-fade-in-on-scroll-in ease-out both,
      kfa-fade-in-on-scroll-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 10% cover 30%, normal;
  }
}
@keyframes kfa-fade-in-on-scroll-in {
  from { opacity: 0; transform: translateY(1.75em); }
}

.kfa-staggered-list-entrance {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  gap: 0.45em;
  width: 13em;
  margin: 0;
  padding: 0;
  list-style: none;
}
.kfa-staggered-list-entrance > li {
  display: flex;
  align-items: center;
  gap: 0.7em;
  height: 1.8em;
  padding: 0 0.6em;
  border-radius: 0.55em;
  background: color-mix(in srgb, var(--c) 14%, transparent);
  animation: kfa-staggered-list-entrance-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) calc(var(--i) * 90ms) both;
}
.kfa-staggered-list-entrance-dot {
  flex: none;
  width: 0.9em;
  height: 0.9em;
  border-radius: 50%;
  background: var(--c);
}
.kfa-staggered-list-entrance-line {
  width: var(--w);
  height: 0.45em;
  border-radius: 1em;
  background: color-mix(in srgb, var(--c) 45%, transparent);
}
@keyframes kfa-staggered-list-entrance-in {
  from { opacity: 0; transform: translateY(1em) scale(0.97); }
}

.kfa-fade-out {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-fade-out-kf 0.7s cubic-bezier(0.4, 0, 1, 1) both;
}
@keyframes kfa-fade-out-kf {
  to { opacity: 0; visibility: hidden; }
}

.kfa-zoom-out {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-zoom-out-kf 0.55s cubic-bezier(0.55, 0.055, 0.675, 0.19) both;
}
@keyframes kfa-zoom-out-kf {
  40% { opacity: 1; }
  100% { opacity: 0; transform: scale(0.3); }
}

.kfa-slide-out-right {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-out-right-kf 0.7s cubic-bezier(0.5, 0, 0.75, 0) both;
}
@keyframes kfa-slide-out-right-kf {
  to { opacity: 0; transform: translateX(7em); }
}

.kfa-bounce-out {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-bounce-out-kf 0.8s both;
}
@keyframes kfa-bounce-out-kf {
  0% { transform: scale(1); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  20% { transform: scale(0.9); animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
  50%, 55% { opacity: 1; transform: scale(1.12); animation-timing-function: cubic-bezier(0.55, 0, 1, 0.45); }
  100% { opacity: 0; transform: scale(0.25); }
}

.kfa-back-out-down {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-back-out-down-kf 0.95s both;
}
@keyframes kfa-back-out-down-kf {
  0% { transform: none; animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
  25% { opacity: 0.8; transform: scale(0.75); animation-timing-function: cubic-bezier(0.6, -0.28, 0.74, 0.05); }
  100% { opacity: 0; transform: translateY(2.4em) scale(0.75); }
}

.kfa-flip-out-x {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-flip-out-x-kf 0.8s both;
}
@keyframes kfa-flip-out-x-kf {
  0% { opacity: 1; transform: perspective(25em) rotateX(0); animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
  25% { opacity: 1; transform: perspective(25em) rotateX(-20deg); animation-timing-function: ease-in; }
  100% { opacity: 0; transform: perspective(25em) rotateX(90deg); }
}

.kfa-puff-out {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-puff-out-kf 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) both;
}
@keyframes kfa-puff-out-kf {
  to { opacity: 0; transform: scale(1.6); filter: blur(0.3em); }
}

.kfa-rotate-out {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-rotate-out-kf 0.85s both;
}
@keyframes kfa-rotate-out-kf {
  0% { opacity: 1; transform: rotate(0); animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
  18% { opacity: 1; transform: rotate(-12deg); animation-timing-function: cubic-bezier(0.45, 0, 0.8, 0.45); }
  100% { opacity: 0; transform: rotate(200deg); }
}

.kfa-scale-up-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-scale-up-on-scroll-in 0.8s cubic-bezier(0.34, 1.4, 0.64, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-scale-up-on-scroll {
    animation:
      kfa-scale-up-on-scroll-in ease-out both,
      kfa-scale-up-on-scroll-in 0.8s cubic-bezier(0.34, 1.4, 0.64, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 0% cover 35%, normal;
  }
}
@keyframes kfa-scale-up-on-scroll-in {
  from { opacity: 0; transform: scale(0.6); }
}

.kfa-slide-in-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-slide-in-on-scroll-in 0.9s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-slide-in-on-scroll {
    animation:
      kfa-slide-in-on-scroll-in ease-out both,
      kfa-slide-in-on-scroll-in 0.9s cubic-bezier(0.16, 1, 0.3, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 0% cover 40%, normal;
  }
}
@keyframes kfa-slide-in-on-scroll-in {
  from { opacity: 0; transform: translateX(-5em); }
  40% { opacity: 1; }
}

.kfa-blur-in-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-blur-in-on-scroll-in 1s cubic-bezier(0.25, 1, 0.5, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-blur-in-on-scroll {
    animation:
      kfa-blur-in-on-scroll-in ease-out both,
      kfa-blur-in-on-scroll-in 1s cubic-bezier(0.25, 1, 0.5, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 0% cover 35%, normal;
  }
}
@keyframes kfa-blur-in-on-scroll-in {
  from { opacity: 0; filter: blur(0.5em); transform: translateY(1em) scale(1.04); }
}

.kfa-rotate-in-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-rotate-in-on-scroll-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-rotate-in-on-scroll {
    animation:
      kfa-rotate-in-on-scroll-in ease-out both,
      kfa-rotate-in-on-scroll-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 0% cover 40%, normal;
  }
}
@keyframes kfa-rotate-in-on-scroll-in {
  from { opacity: 0; transform: translate(-1.5em, 1.75em) rotate(-14deg); }
}

.kfa-reveal-up-on-scroll {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-reveal-up-on-scroll-in 0.9s cubic-bezier(0.65, 0, 0.35, 1) backwards;
}
/* scroll-driven where supported: the keyframes follow the element into the viewport */
@supports (animation-timeline: view()) {
  .kfa-reveal-up-on-scroll {
    animation:
      kfa-reveal-up-on-scroll-in ease-out both,
      kfa-reveal-up-on-scroll-in 0.9s cubic-bezier(0.65, 0, 0.35, 1) backwards;
    animation-timeline: view(), auto;
    animation-range: entry 10% cover 40%, normal;
  }
}
@keyframes kfa-reveal-up-on-scroll-in {
  from { clip-path: inset(100% -1.5em -1.5em -1.5em); transform: translateY(1em); }
  to { clip-path: inset(-1.5em -1.5em -1.5em -1.5em); transform: none; }
}

.kfa-staggered-grid-pop {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  grid-template-columns: repeat(3, 1.9em);
  gap: 0.4em;
}
.kfa-staggered-grid-pop > span {
  height: 1.9em;
  border-radius: 0.45em;
  background: var(--c);
  box-shadow: 0 0.3em 0.7em -0.35em color-mix(in srgb, var(--c) 80%, transparent);
  animation: kfa-staggered-grid-pop-in 0.55s calc(var(--i) * 75ms) both;
}
.kfa-staggered-grid-pop > span:nth-child(even) {
  background: color-mix(in srgb, var(--c) 55%, transparent);
}
@keyframes kfa-staggered-grid-pop-in {
  0% { opacity: 0; transform: scale(0); animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); }
  55% { opacity: 1; transform: scale(1.15); animation-timing-function: cubic-bezier(0.45, 0, 0.55, 1); }
  80% { transform: scale(0.96); }
  100% { opacity: 1; transform: none; }
}

.kfa-cube-rotate {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  width: 5em;
  height: 5em;
  perspective: 24em;
}
.kfa-cube-rotate-cube {
  position: relative;
  height: 100%;
  transform-style: preserve-3d;
  animation: kfa-cube-rotate-kf 6s cubic-bezier(0.65, 0, 0.3, 1.15) infinite;
}
.kfa-cube-rotate-cube > span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 0.3em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  transform: rotateX(calc(var(--i) * 90deg)) translateZ(2.5em);
  backface-visibility: hidden;
}
/* every other face a shade darker, so the edge reads while it turns */
.kfa-cube-rotate-cube > span:nth-child(even) {
  background: color-mix(in srgb, var(--c) 72%, #000);
}
/* the two square ends; they spin in their own plane as the cube rolls */
.kfa-cube-rotate-cap {
  position: absolute;
  inset: 0;
  border-radius: 0.3em;
  background: color-mix(in srgb, var(--c) 58%, #000);
  transform: rotateY(90deg) translateZ(2.5em);
}
.kfa-cube-rotate-cap + .kfa-cube-rotate-cap {
  transform: rotateY(-90deg) translateZ(2.5em);
}
/* translateZ(-2.5em) keeps the front face near its real size; rotateY(-22deg) shows an end */
@keyframes kfa-cube-rotate-kf {
  0%, 18% { transform: translateZ(-2.5em) rotateY(-22deg) rotateX(0); }
  25%, 43% { transform: translateZ(-2.5em) rotateY(-22deg) rotateX(-90deg); }
  50%, 68% { transform: translateZ(-2.5em) rotateY(-22deg) rotateX(-180deg); }
  75%, 93% { transform: translateZ(-2.5em) rotateY(-22deg) rotateX(-270deg); }
  100% { transform: translateZ(-2.5em) rotateY(-22deg) rotateX(-360deg); }
}

.kfa-3d-carousel {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  width: 2.8em;
  height: 3.8em;
  perspective: 26em;
}
.kfa-3d-carousel-ring {
  position: relative;
  height: 100%;
  transform-style: preserve-3d;
  animation: kfa-3d-carousel-spin 7.2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
.kfa-3d-carousel-ring > span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 0.45em;
  background: var(--c);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--c) 55%, #fff);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.1em;
  transform: rotateY(calc(var(--i) * 60deg)) translateZ(4.2em);
  transform-style: preserve-3d;
  backface-visibility: hidden;
}
/* the back of each card: a pale slab that only shows while the card faces away */
.kfa-3d-carousel-ring > span::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: color-mix(in srgb, var(--c) 22%, transparent);
  transform: rotateY(180deg);
  backface-visibility: hidden;
}
@keyframes kfa-3d-carousel-spin {
  0%, 11% { transform: rotateX(-6deg) rotateY(0); }
  16.67%, 27.67% { transform: rotateX(-6deg) rotateY(-60deg); }
  33.33%, 44.33% { transform: rotateX(-6deg) rotateY(-120deg); }
  50%, 61% { transform: rotateX(-6deg) rotateY(-180deg); }
  66.67%, 77.67% { transform: rotateX(-6deg) rotateY(-240deg); }
  83.33%, 94.33% { transform: rotateX(-6deg) rotateY(-300deg); }
  100% { transform: rotateX(-6deg) rotateY(-360deg); }
}

.kfa-figure-eight {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  position: relative;
  width: 12em;
  height: 5em;
}
.kfa-figure-eight-track {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: color-mix(in srgb, var(--c) 35%, transparent);
  stroke-width: 0.1;
  stroke-dasharray: 0.25 0.2;
}
/* sideways swing: one full sweep each way per cycle */
.kfa-figure-eight-x {
  position: absolute;
  left: 50%;
  top: 50%;
  animation: kfa-figure-eight-sway 1.6s cubic-bezier(0.37, 0, 0.63, 1) calc(var(--i) * 0.08s - 0.16s) infinite alternate;
}
/* vertical swing at twice the rate, a quarter period ahead: that phase makes the crossing */
.kfa-figure-eight-y {
  display: block;
  width: 1.2em;
  height: 1.2em;
  margin: -0.6em;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 0.8em color-mix(in srgb, var(--c) 55%, transparent);
  opacity: calc(1 - var(--i) * 0.35);
  scale: calc(1 - var(--i) * 0.2);
  animation: kfa-figure-eight-bob 0.8s cubic-bezier(0.37, 0, 0.63, 1) calc(var(--i) * 0.08s - 0.56s) infinite alternate;
}
@keyframes kfa-figure-eight-sway {
  from { transform: translateX(-4.6em); }
  to { transform: translateX(4.6em); }
}
@keyframes kfa-figure-eight-bob {
  from { transform: translateY(-1.5em); }
  to { transform: translateY(1.5em); }
}

.kfa-square-to-circle-morph {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  border-radius: 0.6em;
  animation: kfa-square-to-circle-morph-kf 3.2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes kfa-square-to-circle-morph-kf {
  0%, 8% { border-radius: 0.6em; transform: rotate(0); }
  42%, 58% { border-radius: 50%; transform: rotate(180deg) scale(0.9); }
  92%, 100% { border-radius: 0.6em; transform: rotate(360deg); }
}

.kfa-sprite-sheet-steps {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  position: relative;
  overflow: hidden;
}
/* the sheet: eight 40 unit frames in a row, one frame wide per box width */
.kfa-sprite-sheet-steps-strip {
  position: absolute;
  top: 0;
  left: 0;
  width: 800%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: kfa-sprite-sheet-steps-play 0.8s steps(8) infinite;
}
/* the ground moves at the speed of the planted foot */
.kfa-sprite-sheet-steps::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.18em;
  height: 0.12em;
  background: repeating-linear-gradient(90deg, rgb(255 255 255 / 0.55) 0 0.5em, transparent 0 0.96em);
  animation: kfa-sprite-sheet-steps-ground 0.8s linear infinite;
}
@keyframes kfa-sprite-sheet-steps-play {
  to { transform: translateX(-100%); }
}
@keyframes kfa-sprite-sheet-steps-ground {
  to { background-position: -3.84em 0; }
}

.kfa-elastic-spring {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-elastic-spring-kf 2.8s infinite;
}
/* two timing declarations: browsers without linear() keep the cubic-bezier */
@keyframes kfa-elastic-spring-kf {
  0%, 50% {
    animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
    animation-timing-function: linear(0, 0.106, 0.359, 0.666, 0.951, 1.163, 1.281, 1.308, 1.266, 1.183, 1.088, 1.003, 0.942, 0.91, 0.906, 0.921, 0.948, 0.977, 1.003, 1.02, 1.029, 1.029, 1.023, 1.015, 1.006, 0.998, 0.993, 0.991, 0.991, 0.993, 1);
  }
  0% { transform: scale(1); }
  42%, 50% { transform: scale(1.25); }
  92%, 100% { transform: scale(1); }
}

.kfa-ken-burns-effect {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  width: 13em;
  height: 7.5em;
  overflow: hidden;
  border-radius: 0.8em;
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: var(--c);
}
.kfa-ken-burns-effect-img {
  display: block;
  width: 100%;
  height: 100%;
  fill: currentColor;
  transform-origin: 70% 40%;
  animation: kfa-ken-burns-effect-kf 6s cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
}
@keyframes kfa-ken-burns-effect-kf {
  from { transform: scale(1) translate(0, 0); }
  to { transform: scale(1.35) translate(-6%, 4%); }
}

.kfa-circle-reveal {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
  animation: kfa-circle-reveal-open 0.9s cubic-bezier(0.65, 0, 0.35, 1) both;
}
.kfa-circle-reveal-label {
  animation: kfa-circle-reveal-settle 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes kfa-circle-reveal-open {
  from { clip-path: circle(0% at 50% 50%); }
  to { clip-path: circle(100% at 50% 50%); }
}
@keyframes kfa-circle-reveal-settle {
  from { transform: scale(1.4); }
}

.kfa-svg-line-draw {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  display: grid;
  place-items: center;
  width: 5.5em;
  height: 5.5em;
  border-radius: 1em;
  background: var(--c);
  color: #fff;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  box-shadow: 0 0.6em 1.4em -0.6em color-mix(in srgb, var(--c) 70%, transparent);
}
.kfa-svg-line-draw-icon {
  width: 3.4em;
  height: 3.4em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kfa-svg-line-draw-icon > * {
  stroke-dasharray: 1 2;
  stroke-dashoffset: 1;
  animation: kfa-svg-line-draw-stroke 0.7s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
/* the tick starts as the circle closes, and lands faster */
.kfa-svg-line-draw-icon > path {
  animation-duration: 0.4s;
  animation-delay: 0.55s;
  animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
}
@keyframes kfa-svg-line-draw-stroke {
  to { stroke-dashoffset: 0; }
}

.kfa-card-stack-shuffle {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  position: relative;
  width: 4.4em;
  height: 5.4em;
  margin-top: 1em;
}
.kfa-card-stack-shuffle > span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 0.8em;
  background: linear-gradient(160deg, color-mix(in srgb, var(--c) 78%, #fff), var(--c));
  box-shadow: 0 0.5em 1em -0.5em color-mix(in srgb, var(--c) 70%, transparent), inset 0 0 0 1px color-mix(in srgb, var(--c) 40%, transparent);
  color: #fff;
  font: 700 1.6em/1 system-ui, sans-serif;
  animation:
    kfa-card-stack-shuffle-deal 4.5s cubic-bezier(0.65, 0, 0.35, 1) infinite,
    kfa-card-stack-shuffle-layer 4.5s linear infinite;
  animation-delay: calc(var(--i) * -3s);
}
/* front, out to the side, back of the stack, middle, front again */
@keyframes kfa-card-stack-shuffle-deal {
  0%, 20% { transform: none; filter: brightness(1); }
  27% { transform: translate(3.4em, -0.4em) rotate(10deg); filter: brightness(1); }
  33.33%, 53.33% { transform: translateY(-1em) scale(0.84); filter: brightness(0.78); }
  66.67%, 86.67% { transform: translateY(-0.5em) scale(0.92); filter: brightness(0.89); }
  100% { transform: none; filter: brightness(1); }
}
/* the stacking order flips while the card is clear of the others */
@keyframes kfa-card-stack-shuffle-layer {
  0%, 27% { z-index: 3; }
  27.5%, 61.5% { z-index: 1; }
  62%, 93.5% { z-index: 2; }
  94%, 100% { z-index: 3; }
}

.kfa-page-flip {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  --paper: color-mix(in srgb, var(--c) 8%, #fff);
  --lines: repeating-linear-gradient(color-mix(in srgb, var(--c) 38%, transparent) 0 0.2em, transparent 0 0.6em) content-box;
  position: relative;
  display: flex;
  width: 10em;
  height: 6.4em;
  perspective: 26em;
  filter: drop-shadow(0 0.5em 0.6em color-mix(in srgb, var(--c) 35%, transparent));
}
/* the two pages that stay put, and both faces of the turning leaf */
.kfa-page-flip::before,
.kfa-page-flip::after,
.kfa-page-flip-leaf::before,
.kfa-page-flip-leaf::after {
  content: "";
  box-sizing: border-box;
  width: 5em;
  height: 100%;
  padding: 0.9em 0.75em;
}
.kfa-page-flip::before,
.kfa-page-flip-leaf::after {
  border-radius: 0.4em 0 0 0.4em;
  background: var(--lines), linear-gradient(270deg, rgb(0 0 0 / 0.1), transparent 30%), var(--paper);
}
.kfa-page-flip::after,
.kfa-page-flip-leaf::before {
  border-radius: 0 0.4em 0.4em 0;
  background: var(--lines), linear-gradient(90deg, rgb(0 0 0 / 0.1), transparent 30%), var(--paper);
}
.kfa-page-flip-leaf {
  position: absolute;
  top: 0;
  left: 50%;
  width: 5em;
  height: 100%;
  transform-origin: 0 50%;
  transform-style: preserve-3d;
  animation: kfa-page-flip-turn 2.8s cubic-bezier(0.45, 0.05, 0.3, 1) infinite;
}
.kfa-page-flip-leaf::before,
.kfa-page-flip-leaf::after {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
}
.kfa-page-flip-leaf::after {
  transform: rotateY(180deg);
}
@keyframes kfa-page-flip-turn {
  0%, 12% { transform: rotateY(0); }
  60%, 100% { transform: rotateY(-180deg); }
}

.kfa-rolling-square {
  --c: var(--kfa-color, #3b82f6);
  font-size: var(--kfa-size, 16px);
  position: relative;
  width: 16em;
  height: 5em;
  border-bottom: 1px solid color-mix(in srgb, var(--c) 40%, transparent);
}
/* hops one square to the right each time a roll ends */
.kfa-rolling-square-mover {
  position: absolute;
  left: 1.6em;
  bottom: 0;
  animation:
    kfa-rolling-square-advance 3.2s steps(4) infinite,
    kfa-rolling-square-fade 3.2s linear infinite;
}
/* each roll: tip over the bottom right corner, then rest a beat */
.kfa-rolling-square-box {
  width: 3em;
  height: 3em;
  border-radius: 0.35em;
  background: var(--c);
  transform-origin: 100% 100%;
  animation: kfa-rolling-square-roll 0.8s infinite;
}
@keyframes kfa-rolling-square-roll {
  0% { transform: rotate(0); animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1); }
  72%, 100% { transform: rotate(90deg); }
}
@keyframes kfa-rolling-square-advance {
  to { transform: translateX(12em); }
}
@keyframes kfa-rolling-square-fade {
  0% { opacity: 0; }
  10%, 86% { opacity: 1; }
  100% { opacity: 0; }
}