.split-flap-text {
  display: inline-flex;
  align-items: center;
  gap: var(--split-flap-gap, 6px);
  color: var(--split-flap-text-color, #f8fafc);
  font-family: 'Space Mono', monospace;
  font-size: var(--split-flap-font-size, 52px);
  font-weight: 760;
  line-height: 1;
  letter-spacing: 0.035em;
  white-space: pre;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

.split-flap-text__tile {
  position: relative;
  width: 0.78em;
  height: 1.08em;
  overflow: hidden;
  border-radius: var(--split-flap-radius, 8px);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.16), transparent 44%),
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--split-flap-tile-color, #111827) 82%, white),
      var(--split-flap-tile-color, #111827)
    );
  box-shadow:
    0 0.035em 0.08em rgba(255, 255, 255, 0.08) inset,
    0 -0.05em 0.1em rgba(0, 0, 0, 0.38) inset,
    0 0.16em 0.38em rgba(0, 0, 0, 0.28);
  perspective: 520px;
  transform-style: preserve-3d;
  isolation: isolate;
}

.split-flap-text__tile::before {
  content: '';
  position: absolute;
  z-index: 8;
  top: calc(50% - 1px);
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 0, 0, 0.8) 18%,
    rgba(0, 0, 0, 1) 50%,
    rgba(0, 0, 0, 0.8) 82%,
    transparent
  );
  box-shadow:
    0 -1px 0 rgba(255, 255, 255, 0.1),
    0 1px 0 rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

.split-flap-text__tile::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 9;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: inherit;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2) inset;
  pointer-events: none;
}

.split-flap-text__half,
.split-flap-text__flap {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent 34%), var(--split-flap-tile-color, #111827);
  backface-visibility: hidden;
}

.split-flap-text__half--top,
.split-flap-text__flap--front {
  top: 0;
}

.split-flap-text__half--bottom,
.split-flap-text__flap--back {
  bottom: 0;
}

.split-flap-text__half--bottom,
.split-flap-text__flap--back {
  background:
    linear-gradient(0deg, rgba(255, 255, 255, 0.06), transparent 38%),
    color-mix(in srgb, var(--split-flap-tile-color, #111827) 92%, black);
}

.split-flap-text__char {
  position: absolute;
  left: 0;
  width: 100%;
  height: 200%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--split-flap-text-color, #f8fafc);
  text-shadow:
    0 0.025em 0 rgba(255, 255, 255, 0.16),
    0 0.09em 0.16em rgba(0, 0, 0, 0.42);
}

.split-flap-text__half--top .split-flap-text__char,
.split-flap-text__flap--front .split-flap-text__char {
  top: 0;
}

.split-flap-text__half--bottom .split-flap-text__char,
.split-flap-text__flap--back .split-flap-text__char {
  bottom: 0;
}

.split-flap-text__flap {
  z-index: 6;
  will-change: transform, filter;
  transform-style: preserve-3d;
}

.split-flap-text__flap--front {
  transform-origin: center bottom;
  animation: split-flap-front var(--split-flap-flip-duration, 0.12s) cubic-bezier(0.6, -0.28, 0.735, 0.045) both;
}

.split-flap-text__flap--back {
  transform-origin: center top;
  transform: rotateX(90deg);
  animation: split-flap-back var(--split-flap-flip-duration, 0.12s) cubic-bezier(0.6, -0.28, 0.735, 0.045) both;
}

@keyframes split-flap-front {
  0% {
    transform: rotateX(0deg);
    filter: brightness(1.1);
  }
  100% {
    transform: rotateX(-90deg);
    filter: brightness(0.4);
  }
}

@keyframes split-flap-back {
  0%,
  45% {
    transform: rotateX(90deg);
    filter: brightness(0.4);
  }
  100% {
    transform: rotateX(0deg);
    filter: brightness(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .split-flap-text__flap {
    animation: none !important;
  }
}