/* 020 — Gooey Dock
   Effet metaball en deux couches :
   - .gooey-dock__goo : barre (::before) + bulles, passées dans le filtre SVG
     #gooey-dock-goo (blur + contraste alpha) → fusion liquide des formes.
   - .gooey-dock__items : icônes nettes, au-dessus du filtre, animées en synchro.
   La bulle est pilotée par :has() depuis le survol de l'item correspondant. */

.gooey-dock {
  --gooey-dock-item-w: 56px;
  --gooey-dock-bar-h: 58px;
  --gooey-dock-rise: -68px;
  position: relative;
  display: inline-block;
  padding-top: 104px; /* espace de sortie de la bulle + label */
}

.gooey-dock__defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* --- Couche goo (filtrée) ------------------------------------------------ */

.gooey-dock__goo {
  position: absolute;
  inset: 0;
  filter: url(#gooey-dock-goo);
  pointer-events: none;
}

/* La barre elle-même, fusionnée avec les bulles par le filtre */
.gooey-dock__goo::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--gooey-dock-bar-h);
  border-radius: calc(var(--gooey-dock-bar-h) / 2);
  background: color-mix(in oklab, var(--ml-surface, #151a24) 86%, var(--ml-fg, #e8eaf2));
  transform-origin: 50% 100%;
  transition: transform 0.5s cubic-bezier(0.33, 1, 0.68, 1);
}

/* La barre s'affaisse légèrement pendant qu'une bulle s'en arrache */
.gooey-dock:has(.gooey-dock__item:is(:hover, :focus-visible)) .gooey-dock__goo::before {
  transform: scaleY(0.93);
}

.gooey-dock__blob {
  position: absolute;
  bottom: 7px;
  left: calc(var(--gooey-dock-item-w) * var(--gooey-dock-i, 0) + var(--gooey-dock-item-w) / 2);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(
    160deg,
    var(--ml-accent, #7c8cff),
    color-mix(in oklab, var(--ml-accent, #7c8cff) 55%, var(--ml-accent-2, #2dd4bf))
  );
  transform: translate(-50%, 6px) scale(0);
  /* retour : la bulle se fait réabsorber par la barre */
  transition: transform 0.5s cubic-bezier(0.55, 0, 0.55, 1.05);
  will-change: transform;
}

.gooey-dock__blob:nth-child(1) { --gooey-dock-i: 0; }
.gooey-dock__blob:nth-child(2) { --gooey-dock-i: 1; }
.gooey-dock__blob:nth-child(3) { --gooey-dock-i: 2; }
.gooey-dock__blob:nth-child(4) { --gooey-dock-i: 3; }
.gooey-dock__blob:nth-child(5) { --gooey-dock-i: 4; }

/* Sortie de bulle : étirement à travers le col goo, détachement, settle */
@keyframes gooey-dock-pop {
  0%   { transform: translate(-50%, 4px)   scale(0.25); }
  32%  { transform: translate(-50%, -16px) scale(0.78, 1.28); }
  58%  { transform: translate(-50%, -48px) scale(0.9, 1.14); }
  78%  { transform: translate(-50%, -74px) scale(1.07, 0.93); }
  100% { transform: translate(-50%, -68px) scale(1); }
}

.gooey-dock:has(.gooey-dock__item:nth-child(1):is(:hover, :focus-visible)) .gooey-dock__blob:nth-child(1),
.gooey-dock:has(.gooey-dock__item:nth-child(2):is(:hover, :focus-visible)) .gooey-dock__blob:nth-child(2),
.gooey-dock:has(.gooey-dock__item:nth-child(3):is(:hover, :focus-visible)) .gooey-dock__blob:nth-child(3),
.gooey-dock:has(.gooey-dock__item:nth-child(4):is(:hover, :focus-visible)) .gooey-dock__blob:nth-child(4),
.gooey-dock:has(.gooey-dock__item:nth-child(5):is(:hover, :focus-visible)) .gooey-dock__blob:nth-child(5) {
  animation: gooey-dock-pop 0.64s cubic-bezier(0.32, 0.9, 0.35, 1) forwards;
}

/* --- Couche icônes (nette) ----------------------------------------------- */

.gooey-dock__items {
  position: relative;
  display: flex;
  height: var(--gooey-dock-bar-h);
}

.gooey-dock__item {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--gooey-dock-item-w);
  height: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ml-muted, #8b91a3);
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.gooey-dock__icon {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  transition:
    transform 0.58s cubic-bezier(0.3, 1.35, 0.4, 1) 0.05s,
    color 0.35s ease 0.12s;
  will-change: transform;
}

.gooey-dock__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.gooey-dock__item:is(:hover, :focus-visible) .gooey-dock__icon {
  transform: translateY(var(--gooey-dock-rise)) scale(1.12);
  color: var(--ml-bg, #0d1017);
}

.gooey-dock__label {
  position: absolute;
  left: 50%;
  bottom: calc(var(--gooey-dock-bar-h) + 84px);
  transform: translate(-50%, 6px);
  font: 500 11px/1 system-ui, -apple-system, sans-serif;
  letter-spacing: 0.05em;
  white-space: nowrap;
  color: var(--ml-fg, #e8eaf2);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.25s ease,
    transform 0.45s cubic-bezier(0.3, 1.3, 0.5, 1);
}

.gooey-dock__item:is(:hover, :focus-visible) .gooey-dock__label {
  opacity: 1;
  transform: translate(-50%, 0);
  transition-delay: 0.22s;
}

/* --- Reduced motion ------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  .gooey-dock { padding-top: 28px; }
  .gooey-dock__blob { display: none; }
  .gooey-dock__goo::before,
  .gooey-dock__icon,
  .gooey-dock__label {
    transition: none;
    animation: none;
  }
  .gooey-dock:has(.gooey-dock__item:is(:hover, :focus-visible)) .gooey-dock__goo::before {
    transform: none;
  }
  .gooey-dock__item:is(:hover, :focus-visible) .gooey-dock__icon {
    transform: none;
    color: var(--ml-accent, #7c8cff);
  }
  .gooey-dock__label { bottom: calc(var(--gooey-dock-bar-h) + 8px); }
}