/* =====================================================
   MH Theme — Floating Utility Dock
   Phase 151J: one coordinated dock for appearance + go-to-top controls.
   ===================================================== */

.mht-utility-control {
  --mht-utility-size: 56px;
  --mht-utility-gap: 0px;
  --mht-utility-icon: 26px;
  --mht-utility-expanded: calc((var(--mht-utility-size) * 2) + var(--mht-utility-gap));

  position: fixed;
  right: clamp(18px, 2.2vw, 34px);
  bottom: clamp(18px, 2.2vw, 34px);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: var(--mht-utility-size);
  height: var(--mht-utility-size);
  min-width: var(--mht-utility-size);
  min-height: var(--mht-utility-size);
  padding: 0;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  isolation: isolate;
  color: #F6F2F7;
  background:
    linear-gradient(180deg, rgba(255,255,255,.14), rgba(255,255,255,.045) 38%, rgba(0,0,0,.18) 100%),
    rgba(13, 13, 13, .52);
  box-shadow:
    0 16px 42px rgba(0,0,0,.28),
    inset 0 1px 0 rgba(255,255,255,.28),
    inset 0 -1px 0 rgba(0,0,0,.32),
    inset 0 0 0 1px rgba(255,255,255,.045);
  -webkit-backdrop-filter: blur(13px) saturate(170%) contrast(1.04) brightness(1.02);
  backdrop-filter: blur(13px) saturate(170%) contrast(1.04) brightness(1.02);
  transform: translate3d(0, 0, 0);
  transition:
    width 360ms cubic-bezier(.2, 1, .2, 1),
    opacity 240ms ease,
    transform 280ms cubic-bezier(.2, 1, .2, 1),
    background-color 240ms ease;
}

html[data-mht-theme-effective="light"] .mht-utility-control,
html[data-mht-theme="light"] .mht-utility-control {
  color: #2F1F3A;
  background:
    linear-gradient(180deg, rgba(255,255,255,.74), rgba(246,242,247,.54) 44%, rgba(230,216,255,.28) 100%),
    rgba(246,242,247,.72);
  box-shadow:
    0 16px 40px rgba(47,31,58,.14),
    inset 0 1px 0 rgba(255,255,255,.72),
    inset 0 -1px 0 rgba(76,52,93,.12),
    inset 0 0 0 1px rgba(142,99,163,.13);
}

.mht-utility-control::before,
.mht-utility-control::after {
  content: "";
  position: absolute;
  z-index: 0;
  pointer-events: none;
  border-radius: inherit;
}

.mht-utility-control::before {
  inset: 1px 1px auto 1px;
  height: 44%;
  background: linear-gradient(180deg, rgba(255,255,255,.34), rgba(255,255,255,.09) 58%, rgba(255,255,255,0) 100%);
  opacity: .42;
}

.mht-utility-control::after {
  inset: 0;
  padding: 1px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.40), rgba(197,166,211,.17) 38%, rgba(183,140,255,.16) 68%, rgba(255,255,255,.04));
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: .58;
}

.mht-utility-control > * {
  position: relative;
  z-index: 1;
}

.mht-utility-control.has-mode.has-totop.has-visible-totop {
  width: var(--mht-utility-expanded);
}

.mht-utility-control.has-no-mode.has-totop:not(.has-visible-totop) {
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 10px, 0) scale(.96);
}

.mht-utility-control.has-mode.has-no-totop {
  width: var(--mht-utility-size);
}

.mht-utility-button {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 var(--mht-utility-size);
  width: var(--mht-utility-size);
  height: var(--mht-utility-size);
  min-width: var(--mht-utility-size);
  min-height: var(--mht-utility-size);
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent !important;
  box-shadow: none !important;
  color: currentColor !important;
  cursor: pointer;
  line-height: 0;
  overflow: visible;
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 220ms cubic-bezier(.2, 1, .2, 1),
    opacity 220ms ease,
    color 180ms ease;
}

.mht-utility-button::before,
.mht-utility-button::after {
  display: none !important;
  content: none !important;
}

.mht-utility-button:hover,
.mht-utility-button:focus-visible {
  background: transparent !important;
  box-shadow: none !important;
  outline: none;
}

.mht-utility-button:focus-visible .mht-utility-icon {
  box-shadow: 0 0 0 2px rgba(183,140,255,.42);
}

.mht-utility-button:hover .mht-utility-icon,
.mht-utility-button:focus-visible .mht-utility-icon {
  transform: scale(1.08);
}

.mht-utility-button--totop {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(-8px, 0, 0) scale(.92);
  transition:
    opacity 220ms ease,
    transform 300ms cubic-bezier(.2, 1, .2, 1),
    visibility 0s linear 220ms;
}

.mht-utility-control.has-visible-totop .mht-utility-button--totop,
.mht-utility-control.has-no-mode.has-totop.has-visible-totop .mht-utility-button--totop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0) scale(1);
  transition-delay: 70ms, 0s, 0s;
}

.mht-utility-control.has-no-mode.has-totop .mht-utility-button--totop {
  transform: translate3d(0, 0, 0) scale(.92);
}

.mht-utility-control.has-no-mode.has-totop.has-visible-totop .mht-utility-button--totop {
  transform: translate3d(0, 0, 0) scale(1);
}

.mht-utility-icon {
  display: grid;
  place-items: center;
  width: var(--mht-utility-icon);
  height: var(--mht-utility-icon);
  min-width: var(--mht-utility-icon);
  min-height: var(--mht-utility-icon);
  color: currentColor !important;
  line-height: 0;
  overflow: visible;
  border-radius: 999px;
  transform-origin: center;
  transition:
    transform 240ms cubic-bezier(.2, 1, .2, 1),
    opacity 220ms ease,
    box-shadow 180ms ease;
}

.mht-utility-icon svg {
  display: block;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  color: currentColor !important;
  fill: currentColor;
  stroke: currentColor;
  overflow: visible;
}

.mht-utility-icon svg [fill="none"] { fill: none !important; }
.mht-utility-icon svg [stroke="currentColor"] { stroke: currentColor !important; }

.mht-utility-sr {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
  white-space: nowrap !important;
}

@media (max-width: 900px) {
  .mht-utility-control,
  .mht-utility-control--site,
  .mht-utility-control--start {
    --mht-utility-size: 54px;
    --mht-utility-icon: 25px;
    right: max(16px, env(safe-area-inset-right));
    bottom: calc(100px + env(safe-area-inset-bottom));
    top: auto;
    left: auto;
    z-index: 9998;
  }

  body.admin-bar .mht-utility-control,
  body.admin-bar .mht-utility-control--site,
  body.admin-bar .mht-utility-control--start {
    bottom: calc(100px + env(safe-area-inset-bottom));
  }

  .mht-utility-control.has-mode.has-totop.has-visible-totop {
    width: calc((var(--mht-utility-size) * 2) + var(--mht-utility-gap));
  }

}

.mht-utility-button.is-morphing .mht-utility-icon,
.mht-utility-button--mode.is-morphing .mht-utility-icon {
  animation: mht-utility-icon-morph 520ms cubic-bezier(.2, 1, .2, 1);
}

@keyframes mht-utility-icon-morph {
  0% { transform: scale(1) rotate(0deg); opacity: 1; }
  42% { transform: scale(.76) rotate(-16deg); opacity: .35; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .mht-utility-control,
  .mht-utility-button,
  .mht-utility-icon {
    transition: none !important;
    animation: none !important;
  }
}

/* Legacy guard: if old markup exists from cache, keep it out of the way. */
.mht-floating-controls:not(.mht-floating-utility-dock) { display: none !important; }