/* ==========================================================================
   WORD CAROUSEL — CSS-only vertical rotating text carousel
   Original idea & technique: freeplayg — https://codepen.io/freeplayg/pen/dyEeevX
   ==========================================================================
   5 items: 3 words + 2 speech emoji separators.
   All li share the same keyframe; staggered animation-delay creates the
   rotating queue effect. Step size = 20s / 5 items = 4s per item.

   Technique:
     - All li are position:absolute, stacked at the same origin
     - rotate-y keyframes: center (active) → translateY down → blur/shrink
       behind → translateY up → return to center
     - z-index in keyframes keeps active item above ghost items
     - prefers-reduced-motion: shows first item statically, no animation
========================================================================== */

.word-carousel {
  height: 3.5rem;
  list-style: none;
  margin: -8rem auto 6rem;
  overflow: visible;
  padding: 0;
  position: relative;
  text-align: center;
  width: 100%;
}

.word-carousel li {
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 600;
  left: 0;
  letter-spacing: 0.04em;
  line-height: 1;
  position: absolute;
  right: 0;
  top: 0;
  user-select: none;
  white-space: nowrap;
}

.word-carousel .carousel-emoji {
  font-size: 3rem;
  letter-spacing: 0;
}

/* Static fallback — show only first item when motion is reduced */
@media (prefers-reduced-motion: reduce) {
  .word-carousel li + li {
    display: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  ul.word-carousel li {
    animation: word-carousel-rotate 20s linear infinite;
    line-height: 2.5;
  }

  .word-carousel li:nth-child(1) { animation-delay:   0s; }
  .word-carousel li:nth-child(2) { animation-delay:  -4s; }
  .word-carousel li:nth-child(3) { animation-delay:  -8s; }
  .word-carousel li:nth-child(4) { animation-delay: -12s; }
  .word-carousel li:nth-child(5) { animation-delay: -16s; }
}

@keyframes word-carousel-rotate {
  /* Active: centred, full size */
  0%, 100% {
    filter: blur(0px);
    opacity: 1;
    transform: translateY(0%) scale(1.2);
    z-index: 2;
  }
  /* Moving down */
  12.5% {
    filter: blur(0px);
    opacity: .7;
    transform: translateY(40%);
    z-index: 1;
  }
  /* Shrinking as it exits below */
  25% {
    filter: blur(2px);
    opacity: .5;
    transform: translateY(50%) scale(.8);
    z-index: -1;
  }
  /* Passing behind — blurred, small */
  37.5% {
    filter: blur(4px);
    opacity: .3;
    transform: translateY(40%) scale(.65);
    z-index: -1;
  }
  50% {
    filter: blur(8px);
    opacity: .3;
    transform: translateY(0%) scale(.5);
    z-index: -1;
  }
  /* Coming up from behind */
  62.5% {
    filter: blur(4px);
    opacity: .3;
    transform: translateY(-40%) scale(.65);
    z-index: -1;
  }
  75% {
    filter: blur(2px);
    opacity: .5;
    transform: translateY(-50%) scale(.8);
    z-index: -1;
  }
  /* Approaching from above */
  87.5% {
    filter: blur(0px);
    opacity: .7;
    transform: translateY(-40%);
    z-index: 1;
  }
}