/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SINAPSYS BUTTONS
   Native core/button models. Gutenberg inline controls remain authoritative.
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-outline,
  .wp-block-button.is-style-sin-rounded-solid
) {
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-outline,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link {
  --sin-btn-hover-bg: var(--ink);
  --sin-btn-hover-color: var(--white);
  --sin-btn-hover-border: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .8rem 1.45rem;
  overflow: hidden;
  border: 1.5px solid transparent;
  box-shadow: none;
  font-family: var(--f-head);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .075em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transform: none;
  transition:
    color .24s var(--ease),
    background-color .24s var(--ease),
    background-size .38s cubic-bezier(.65, 0, .35, 1),
    border-color .24s var(--ease),
    box-shadow .24s var(--ease);
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-square-solid
) .wp-block-button__link {
  border-radius: 0;
}

:where(
  .wp-block-button.is-style-sin-rounded-outline,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link {
  border-radius: 999px;
  min-height: 52px;
  padding: .9rem 1.55rem;
  font-family: var(--f-body);
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-rounded-outline
) .wp-block-button__link:not(.has-background) {
  background-color: transparent;
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-rounded-outline
) .wp-block-button__link:not(.has-text-color) {
  color: var(--ink);
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-rounded-outline
) .wp-block-button__link {
  border-color: currentColor;
}

:where(
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link:not(.has-background) {
  background-color: var(--green);
}

:where(
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link:not(.has-text-color) {
  color: var(--ink);
}

:where(
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link {
  --sin-btn-hover-bg: rgba(12, 11, 34, .18);
  --sin-btn-hover-color: var(--ink);
  --sin-btn-hover-border: transparent;
  border-color: transparent;
}

/*
 * Dark surfaces need an explicit button context: the default ink outline
 * disappears against the page background. Outlined buttons become a white
 * resting affordance and receive a translucent white overlay; solid buttons
 * retain their green base and sweep to its deeper operational shade.
 */
:where(
  .cta-section,
  .sin-split-dark,
  .sin-split-dark-rev,
  .sin-approach,
  .sin-diff,
  .sin-cta,
  .brands-section--dark,
  .contact-next
) :where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-rounded-outline
) .wp-block-button__link {
  --sin-btn-hover-bg: rgba(255, 255, 255, .12);
  --sin-btn-hover-color: var(--white);
  /* The white rim remains visible while the translucent layer sweeps beneath it. */
  --sin-btn-hover-border: var(--white);
  border-style: solid !important;
  border-width: 1.5px !important;
  border-color: var(--white) !important;
}

:where(
  .cta-section,
  .sin-split-dark,
  .sin-split-dark-rev,
  .sin-approach,
  .sin-diff,
  .sin-cta,
  .brands-section--dark,
  .contact-next
) :where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-rounded-outline
) .wp-block-button__link:not(.has-text-color) {
  color: var(--white);
}

:where(
  .cta-section,
  .sin-split-dark,
  .sin-split-dark-rev,
  .sin-approach,
  .sin-diff,
  .sin-cta,
  .brands-section--dark,
  .contact-next
) :where(
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link {
  --sin-btn-hover-bg: rgba(12, 11, 34, .18);
  --sin-btn-hover-color: var(--ink);
  --sin-btn-hover-border: transparent;
}

/* Directional fill. The gradient overlays any Gutenberg-selected resting background. */
:where(
  .wp-block-button.has-sin-hover-sweep-right,
  .wp-block-button.has-sin-hover-sweep-left
) .wp-block-button__link {
  background-image: linear-gradient(var(--sin-btn-hover-bg), var(--sin-btn-hover-bg));
  background-repeat: no-repeat;
  background-size: 0 100%;
}

.wp-block-button.has-sin-hover-sweep-right .wp-block-button__link {
  background-position: left center;
}

.wp-block-button.has-sin-hover-sweep-left .wp-block-button__link {
  background-position: right center;
}

:where(
  .wp-block-button.has-sin-hover-sweep-right,
  .wp-block-button.has-sin-hover-sweep-left
) .wp-block-button__link:hover {
  background-size: 100% 100%;
  border-color: var(--sin-btn-hover-border) !important;
  color: var(--sin-btn-hover-color) !important;
}

/* Immediate, whole-surface color change. */
.wp-block-button.has-sin-hover-swap .wp-block-button__link:hover {
  border-color: var(--sin-btn-hover-border) !important;
  background-color: var(--sin-btn-hover-bg) !important;
  color: var(--sin-btn-hover-color) !important;
}

/* Technical signal: no fill, just an active border and a directional cue. */
.wp-block-button.has-sin-hover-signal .wp-block-button__link::after {
  content: '\2192';
  display: inline-block;
  margin-left: .7rem;
  font-size: 1rem;
  line-height: 1;
  transform: translateX(0);
  transition: transform .24s var(--ease);
}

.wp-block-button.has-sin-hover-signal .wp-block-button__link:hover {
  border-color: var(--green) !important;
  color: var(--green-dark) !important;
}

.wp-block-button:is(
  .is-style-sin-square-solid,
  .is-style-sin-rounded-solid
).has-sin-hover-signal .wp-block-button__link:hover {
  border-color: var(--ink) !important;
  color: var(--ink) !important;
}

.wp-block-button.has-sin-hover-signal .wp-block-button__link:hover::after {
  transform: translateX(4px);
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-outline,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
}

:where(
  .wp-block-button.is-style-sin-square-outline,
  .wp-block-button.is-style-sin-square-solid,
  .wp-block-button.is-style-sin-rounded-outline,
  .wp-block-button.is-style-sin-rounded-solid
) .wp-block-button__link:active {
  transform: translateY(1px);
}

@media (prefers-reduced-motion: reduce) {
  :where(
    .wp-block-button.is-style-sin-square-outline,
    .wp-block-button.is-style-sin-square-solid,
    .wp-block-button.is-style-sin-rounded-outline,
    .wp-block-button.is-style-sin-rounded-solid
  ) .wp-block-button__link,
  .wp-block-button.has-sin-hover-signal .wp-block-button__link::after {
    transition: none;
  }
}