/* -------------------------------
   Bottom Transparent Gray Bar
   ------------------------------- */

/* Tunables (your baseline + in/out controls) */
:root {
  --gray-bar-height: 110px;
  --gray-bar-bg: rgba(0, 0, 0, 0.15);
  --gray-bar-fg: rgba(255, 255, 255, 0.85);
  --gray-bar-border: rgba(255, 255, 255, 0.25);
  --gray-bar-blur: 0.25px;
  --gray-bar-radius: 1px;
  --gray-bar-z: 1000;
  --gray-bar-gap: 16px;
  --gray-bar-pad-x: 16px;
  --gray-bar-pad-y: 8px;

  /* Separate durations/easing for in vs out */
  --gray-bar-duration-in-op: 120ms;  /* fast fade in */
  --gray-bar-duration-in-tr: 120ms;  /* fast slide in */
  --gray-bar-ease-in-op: ease-out;
  --gray-bar-ease-in-tr: cubic-bezier(0.4, 0, 0.2, 1);

  --gray-bar-duration-out-op: 400ms; /* slower fade out */
  --gray-bar-duration-out-tr: 300ms; /* quick slide out */
  --gray-bar-ease-out-op: ease-out;
  --gray-bar-ease-out-tr: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hidden by default: opacity 0, slid off screen, not clickable */
.custom-bottom-transparent-gray-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;

  height: var(--gray-bar-height);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gray-bar-gap);

  color: var(--gray-bar-fg);
  background: var(--gray-bar-bg);
  -webkit-backdrop-filter: blur(var(--gray-bar-blur));
  backdrop-filter: blur(var(--gray-bar-blur));
  z-index: var(--gray-bar-z);
  padding: var(--gray-bar-pad-y) var(--gray-bar-pad-x);
  padding-bottom: calc(var(--gray-bar-pad-y) + env(safe-area-inset-bottom, 0px));

  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;

  /* Default (hiding) transitions: quick slide + slower fade out */
  transition:
    opacity var(--gray-bar-duration-out-op) var(--gray-bar-ease-out-op),
    transform var(--gray-bar-duration-out-tr) var(--gray-bar-ease-out-tr);
}

/* Visible when JS adds .show: pop in quickly */
.custom-bottom-transparent-gray-bar.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;

  /* Override to make showing snappy */
  transition:
    opacity var(--gray-bar-duration-in-op) var(--gray-bar-ease-in-op),
    transform var(--gray-bar-duration-in-tr) var(--gray-bar-ease-in-tr);
}

/* Buttons/links inside the bar */
.custom-bottom-transparent-gray-bar__text,
.custom-bottom-transparent-gray-bar a {
  color: var(--gray-bar-fg);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 12px;
  border: 1px solid var(--gray-bar-border);
  border-radius: var(--gray-bar-radius);
  background: rgba(255, 255, 255, 0.08);
  line-height: 1;
}

.custom-bottom-transparent-gray-bar a:hover {
  background: rgba(255, 255, 255, 0.16);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .custom-bottom-transparent-gray-bar,
  .custom-bottom-transparent-gray-bar.show {
    transition: none !important;
  }
}