/* Tehnadzor liquid/glass UI primitives shared by public and app screens. */

.lg-filter-defs {
  width: 0;
  height: 0;
  overflow: hidden;
}

.lg-btn {
  --lg-tilt-x: 0deg;
  --lg-tilt-y: 0deg;
  --lg-raise: 0px;
  --lg-scale: 1;
  --lg-glow-x: 0px;
  --lg-glow-y: 0px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 48px;
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(240, 248, 255, 0.05), rgba(240, 248, 255, 0.015));
  border: 1px solid rgba(240, 248, 255, 0.035);
  color: inherit;
  font-weight: 600;
  letter-spacing: 0.2px;
  backdrop-filter: blur(18px) saturate(138%);
  -webkit-backdrop-filter: blur(18px) saturate(138%);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(240, 248, 255, 0.06);
  position: relative;
  overflow: hidden;
  transform: perspective(700px) translateY(var(--lg-raise)) rotateX(var(--lg-tilt-x)) rotateY(var(--lg-tilt-y)) scale(var(--lg-scale));
  transform-style: preserve-3d;
  transition: transform 160ms ease, box-shadow 160ms ease, background 200ms ease;
  isolation: isolate;
}

.lg-btn--pill {
  min-width: 258px;
  min-height: 48px;
  padding: 8px 16px;
  border-radius: 42px;
}

.lg-btn--compact {
  min-width: 0;
  min-height: 46px;
  padding: 7px 40px;
}

.lg-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  left: 0;
  background: radial-gradient(120% 80% at 50% 0%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 65%);
  opacity: 0.9;
  filter: blur(6px);
  pointer-events: none;
  transition: opacity 200ms ease;
  z-index: 2;
}

.lg-btn:hover::before {
  inset: 0;
  left: 0;
  opacity: 0.7;
}

.lg-btn__label {
  position: relative;
  z-index: 3;
  font-size: 14px;
  font-weight: 600;
  color: rgba(240, 248, 255, 0.88);
}

.lg-btn__glow {
  position: absolute;
  inset: -60%;
  background: conic-gradient(from 210deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0) 70%);
  filter: blur(16px) url(#liquidGlass);
  opacity: 0;
  transform: translate3d(var(--lg-glow-x), var(--lg-glow-y), 0);
  transition: opacity 200ms ease, transform 120ms ease;
  pointer-events: none;
  z-index: 1;
}

.lg-btn:hover {
  --lg-raise: -0.5px;
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.14), inset 0 1px 0 rgba(240, 248, 255, 0.08);
  transform: perspective(700px) translateY(var(--lg-raise)) rotateX(var(--lg-tilt-x)) rotateY(var(--lg-tilt-y)) scale(var(--lg-scale));
}

.lg-btn:hover .lg-btn__glow {
  opacity: 0.45;
}

.lg-btn:active {
  --lg-raise: 0px;
  --lg-scale: 0.985;
  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(240, 248, 255, 0.06);
  transform: perspective(700px) translateY(var(--lg-raise)) rotateX(var(--lg-tilt-x)) rotateY(var(--lg-tilt-y)) scale(var(--lg-scale));
}

.lg-btn:active .lg-btn__glow {
  opacity: 0.35;
}

.lg-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.45);
  outline-offset: 3px;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .lg-btn {
    background: linear-gradient(180deg, rgba(240, 248, 255, 0.05), rgba(240, 248, 255, 0.015));
  }
}

@supports not (filter: url("#liquidGlass")) {
  .lg-btn__glow {
    filter: blur(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lg-btn,
  .lg-btn__glow {
    transition: none;
  }

  .lg-btn {
    transform: none;
  }

  .lg-btn:hover,
  .lg-btn:active {
    transform: none;
  }

  .lg-btn__glow {
    opacity: 0;
  }
}