/* ===========================================================================
   Liquid Glass CTA Pro — static styles. Every value is a CSS custom property
   set per-instance in module.html. Class prefix = module slug (marketplace rule).
   =========================================================================== */

.liquid-glass-cta-pro {
  position: relative;
  display: flex;
  align-items: center;
  isolation: isolate;
}
.liquid-glass-cta-pro--align-left   { justify-content: flex-start; }
.liquid-glass-cta-pro--align-center { justify-content: center; }
.liquid-glass-cta-pro--align-right  { justify-content: flex-end; }
.liquid-glass-cta-pro--full .liquid-glass-cta-pro__btn { width: 100%; }

/* Filter host — 1px (not 0×0; some Chromium builds skip a backdrop-filter
   whose referenced filter element has a zero-area layout box) and hidden. */
.liquid-glass-cta-pro__svg {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* Showcase wrapper (marketing/demo only — gives the glass something to refract) */
.liquid-glass-cta-pro--showcase {
  width: 100%;
  overflow: hidden;
  border-radius: 16px;
  justify-content: center;
}
.liquid-glass-cta-pro__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

/* ---------- The glass button ---------- */
.liquid-glass-cta-pro__btn {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  padding: var(--lgc-pad-y) var(--lgc-pad-x);
  border-radius: var(--lgc-radius);
  border: var(--lgc-border-w) solid var(--lgc-border);
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--lgc-shadow);
  background: transparent;
  -webkit-tap-highlight-color: transparent;
  isolation: isolate;
  will-change: transform;
  transition:
    transform var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1),
    box-shadow var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1),
    border-color var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* shared positioning for every glass layer */
.liquid-glass-cta-pro__refract,
.liquid-glass-cta-pro__glass,
.liquid-glass-cta-pro__tint,
.liquid-glass-cta-pro__sheen,
.liquid-glass-cta-pro__sweep,
.liquid-glass-cta-pro__stroke {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

/* Liquid edge refraction — sits ABOVE the frost so it displaces the already-frosted
   backdrop (that's what makes the bend read through the glass). Chromium renders the
   SVG bend; on other engines the url() filter is invalid and the layer is a no-op,
   leaving the frost layer below to carry the glass look. */
.liquid-glass-cta-pro__refract {
  z-index: 1;
  overflow: hidden;
}

/* Frost — universal backdrop blur + saturation + brightness */
.liquid-glass-cta-pro__glass {
  z-index: 0;
  overflow: hidden;
  -webkit-backdrop-filter: blur(var(--lgc-blur)) saturate(var(--lgc-saturation)) brightness(var(--lgc-brightness));
  backdrop-filter: blur(var(--lgc-blur)) saturate(var(--lgc-saturation)) brightness(var(--lgc-brightness));
  transition: -webkit-backdrop-filter var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1),
              backdrop-filter var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1);
}

.liquid-glass-cta-pro__tint {
  z-index: 1;
  background: var(--lgc-tint);
  transition: background var(--lgc-hover-dur);
}

/* Glossy wet specular — bright top-left gleam + bottom rim catch-light */
.liquid-glass-cta-pro__sheen {
  z-index: 2;
  mix-blend-mode: screen;
  background:
    radial-gradient(120% 90% at 30% -10%,
      var(--lgc-specular) 0%,
      color-mix(in srgb, var(--lgc-specular) 40%, transparent) 16%,
      transparent 42%),
    linear-gradient(var(--lgc-specular-angle),
      transparent 60%,
      color-mix(in srgb, var(--lgc-specular) 14%, transparent) 86%,
      color-mix(in srgb, var(--lgc-specular) 36%, transparent) 100%);
}

/* Diagonal sweep — highlight crosses the button on hover */
.liquid-glass-cta-pro__sweep {
  z-index: 2;
  overflow: hidden;
}
.liquid-glass-cta-pro__sweep::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(115deg,
    transparent 0%,
    color-mix(in srgb, var(--lgc-specular) 55%, transparent) 45%,
    color-mix(in srgb, var(--lgc-specular) 85%, transparent) 50%,
    color-mix(in srgb, var(--lgc-specular) 55%, transparent) 55%,
    transparent 100%);
  transform: translateX(0) skewX(-12deg);
  opacity: 0;
  mix-blend-mode: screen;
  transition: transform var(--lgc-hover-sweep-ms) cubic-bezier(0.22, 0.61, 0.36, 1),
              opacity calc(var(--lgc-hover-sweep-ms) * 0.5) ease-out;
}

/* Glossy 3D bevel — bright inner top edge, soft inner top glow, dark inner bottom,
   plus the tunable chrome ring (--lgc-stroke). Gives the wet, lozenge-edge look. */
.liquid-glass-cta-pro__stroke {
  z-index: 3;
  box-shadow:
    inset 0 1.5px 0.5px 0 color-mix(in srgb, white 90%, transparent),
    inset 0 0 0 var(--lgc-stroke-w) var(--lgc-stroke),
    inset 0 8px 14px -8px color-mix(in srgb, white 50%, transparent),
    inset 0 -2px 3px 0 color-mix(in srgb, black 25%, transparent);
}

/* ---------- Content ---------- */
.liquid-glass-cta-pro__inner {
  position: relative;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--lgc-icon-gap);
  white-space: nowrap;
  min-width: 0;
}

.liquid-glass-cta-pro__label {
  font-family: var(--lgc-label-font);
  font-size: var(--lgc-label-size);
  font-weight: var(--lgc-label-weight);
  font-style: var(--lgc-label-style);
  text-transform: var(--lgc-label-transform);
  letter-spacing: var(--lgc-label-tracking);
  color: var(--lgc-label-color);
  line-height: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.liquid-glass-cta-pro__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--lgc-icon-color);
  font-size: var(--lgc-icon-size);
  line-height: 1;
  flex-shrink: 0;
}
.liquid-glass-cta-pro__icon i {
  font-size: var(--lgc-icon-size);
  color: var(--lgc-icon-color);
  line-height: 1;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
}

/* Icon-in-circle badge — Apple "Continue" pattern */
.liquid-glass-cta-pro__icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--lgc-circle-size);
  height: var(--lgc-circle-size);
  border-radius: 50%;
  background: var(--lgc-circle-bg);
  color: var(--lgc-circle-fg);
  flex-shrink: 0;
  transition: transform var(--lgc-hover-dur) cubic-bezier(0.22, 0.61, 0.36, 1),
              background var(--lgc-hover-dur);
}
.liquid-glass-cta-pro__icon-circle i {
  font-size: calc(var(--lgc-circle-size) * 0.46);
  color: var(--lgc-circle-fg);
  line-height: 1;
}

/* ---------- Hover ---------- */
.liquid-glass-cta-pro__btn:hover {
  transform: translateY(calc(-1 * var(--lgc-hover-lift))) scale(var(--lgc-hover-scale));
  border-color: var(--lgc-hover-border);
  box-shadow:
    var(--lgc-shadow),
    0 0 0 1px color-mix(in srgb, var(--lgc-hover-border) 30%, transparent);
}
.liquid-glass-cta-pro__btn:hover .liquid-glass-cta-pro__glass {
  -webkit-backdrop-filter: blur(var(--lgc-hover-blur)) saturate(var(--lgc-saturation)) brightness(var(--lgc-brightness));
  backdrop-filter: blur(var(--lgc-hover-blur)) saturate(var(--lgc-saturation)) brightness(var(--lgc-brightness));
}
.liquid-glass-cta-pro__btn:hover .liquid-glass-cta-pro__tint { background: var(--lgc-hover-tint); }
.liquid-glass-cta-pro__btn:hover .liquid-glass-cta-pro__sweep::before {
  transform: translateX(360%) skewX(-12deg);
  opacity: 1;
}
.liquid-glass-cta-pro__btn:hover .liquid-glass-cta-pro__icon-circle {
  transform: translateX(4px) rotate(-6deg);
}

.liquid-glass-cta-pro__btn:focus-visible {
  outline: 2px solid var(--lgc-hover-border);
  outline-offset: 4px;
}
.liquid-glass-cta-pro__btn:active {
  transform: translateY(0) scale(calc(var(--lgc-hover-scale) * 0.98));
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .liquid-glass-cta-pro--full .liquid-glass-cta-pro__btn { width: 100%; }
  .liquid-glass-cta-pro__label { font-size: calc(var(--lgc-label-size) * 0.94); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .liquid-glass-cta-pro__btn,
  .liquid-glass-cta-pro__glass,
  .liquid-glass-cta-pro__tint,
  .liquid-glass-cta-pro__sweep::before,
  .liquid-glass-cta-pro__icon-circle { transition: none; }
  .liquid-glass-cta-pro__btn:hover { transform: none; }
  .liquid-glass-cta-pro__btn:hover .liquid-glass-cta-pro__sweep::before {
    transform: translateX(0) skewX(-12deg);
    opacity: 0;
  }
}

/* ---------- Fallback when backdrop-filter is unsupported ---------- */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .liquid-glass-cta-pro__glass {
    background: color-mix(in srgb, var(--lgc-tint) 60%, rgba(255, 255, 255, 0.22));
  }
}