/* CLTD Button – Mask 2 sweep using sprite as background */
.wp-block-cltd-button {
  text-align: inherit;
  display: inline-flex;
  width: auto;
}

.cltd-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.7em 1.75em;
  min-width: 44px;
  min-height: 44px;
  font-family: var(--cltd-button-font-family, var(--wp--preset--font-family--system-sans, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif));
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  border: var(--cltd-button-border-width, 1px) solid var(--cltd-button-border-color, transparent);
  border-radius: var(--cltd-button-border-radius, var(--wp--custom--button--border--radius, 2.75rem)) !important;
  color: var(--cltd-button-fill-text, var(--wp--custom--button--color--text, var(--wp--preset--color--cltd-paper, #ffffff))) !important;
  background-color: var(--cltd-button-fill-bg, var(--wp--custom--button--color--background, var(--wp--preset--color--cltd-ink, #000000))) !important;
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
  margin-top: 20px;
}

.cltd-button:hover,
.cltd-button:focus-visible {
  color: #000000 !important;
  background-color: #ffffff !important;
  box-shadow: 0 12px 22px rgba(0, 0, 0, 0.12);
}

.wp-block-cltd-button__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.7em 1.75em;
  min-width: 44px;
  min-height: 44px;
  font-family: var(--cltd-button-font-family, var(--wp--preset--font-family--system-sans, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif));
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.03em;
  text-decoration: none;
  border: none;
  border-radius: var(--cltd-button-border-radius, var(--wp--custom--button--border--radius, 2.75rem));
  color: #fff; /* start white text */
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.25s ease, box-shadow 0.25s ease;
  /* use sprite as "background" */
  background: url("/wp-content/uploads/2025/11/urban-sprite.png") no-repeat 0 0 / 3000% 100%;
  background-position: 0 0;
}

/* animate sprite on hover */
.wp-block-cltd-button__link:hover,
.wp-block-cltd-button__link:focus-visible {
  animation: cltdMaskPlay 0.7s steps(29) forwards;
  color: #000; /* turn text black */
  box-shadow: 0 12px 22px rgba(0, 0, 0, 0.12);
}

/* return sprite back to black when hover ends */
.wp-block-cltd-button__link:not(:hover):not(:focus-visible) {
  animation: cltdMaskReverse 0.7s steps(29) forwards;
  color: #fff; /* restore white text */
}

/* label */
.wp-block-cltd-button__label {
  position: relative;
  z-index: 2;
  transition: color 0.25s ease;
}

/* focus */
.wp-block-cltd-button__link:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .wp-block-cltd-button__link {
    transition: none;
    animation: none !important;
  }
}

/* keyframes for the sprite sweep */
@keyframes cltdMaskPlay {
  from { background-position: 0 0; }
  to   { background-position: 100% 0; }
}

@keyframes cltdMaskReverse {
  from { background-position: 100% 0; }
  to   { background-position: 0 0; }
}
.cltd-button::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #ffffff;
  pointer-events: none;
  opacity: 0;
  border-radius: inherit;
  mask-image: url("/wp-content/uploads/2025/11/urban-sprite-scaled.png");
  mask-size: 3000% 100%;
  mask-position: 0 0;
  mask-repeat: no-repeat;
  mask-mode: luminance;
  -webkit-mask-image: url("/wp-content/uploads/2025/11/urban-sprite-scaled.png");
  -webkit-mask-size: 3000% 100%;
  -webkit-mask-position: 0 0;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-mode: luminance;
  animation-fill-mode: forwards;
}

.cltd-button:hover::after,
.cltd-button:focus-visible::after {
  opacity: 1;
  animation: cltdButtonMaskPlay 0.7s steps(29) forwards;
}

.cltd-button:not(:hover):not(:focus-visible)::after {
  opacity: 0;
  animation: cltdButtonMaskReverse 0.7s steps(29) forwards;
}