/* Animované logo — „o." sa po prejdení myšou rozbalí na „obrazne."
   Písmená vychádzajú spoza O, bodka ide s koncom slova.
   Na dotykových zariadeniach prepína ťuknutie (Component logic). */

.logo-anim {
  --la-velkost-o: var(--la-velkost, 44px);
  font-family: var(--c-font, Roboto, system-ui, sans-serif);
  font-size: calc(var(--la-velkost-o) / .528);
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.logo-anim:focus-visible {
  outline: 2px solid var(--la-bodka, var(--c-delft, #2e5ea8));
  outline-offset: 6px;
  border-radius: 4px;
}

/* O */
.logo-anim__o {
  width: .528em;
  height: .528em;
  flex: none;
  display: block;
  position: relative;
  z-index: 2;
}

.logo-anim__o circle {
  fill: none;
  stroke: var(--la-farba, var(--c-ink, #11212f));
  stroke-width: 23;
}

/* Slovo — rozťahuje sa na šírku textu bez pevnej šírky */
.logo-anim__slovo {
  display: grid;
  grid-template-columns: 0fr;
  transition: grid-template-columns var(--la-trvanie, 1s) cubic-bezier(.22, .8, .2, 1) .05s;
}

.logo-anim__pismena {
  overflow: hidden;
  min-width: 0;
  display: flex;
  padding: .25em 0 .12em;
  margin: -.25em 0 -.12em;
  margin-left: -.04em;
}

.logo-anim__pismena b {
  font-weight: 800;
  color: var(--la-farba, var(--c-ink, #11212f));
  letter-spacing: -.012em;
  display: inline-block;
  transform: translateX(-130%);
  opacity: 0;
  transition:
    transform calc(var(--la-trvanie, 1s) * .8) cubic-bezier(.2, .9, .25, 1),
    opacity .35s ease;
  /* pri zatváraní odchádzajú od konca */
  transition-delay: calc((5 - var(--i)) * 55ms);
}

.logo-anim__pismena b:nth-child(1) { --i: 0; }
.logo-anim__pismena b:nth-child(2) { --i: 1; }
.logo-anim__pismena b:nth-child(3) { --i: 2; }
.logo-anim__pismena b:nth-child(4) { --i: 3; }
.logo-anim__pismena b:nth-child(5) { --i: 4; }
.logo-anim__pismena b:nth-child(6) { --i: 5; }

/* Bodka */
.logo-anim__bodka {
  width: .15em;
  height: .15em;
  border-radius: 50%;
  background-color: var(--la-bodka, var(--c-delft, #2e5ea8));
  flex: none;
  margin-left: .012em;
  transition: margin-left calc(var(--la-trvanie, 1s) * .8) cubic-bezier(.22, .8, .2, 1);
}

/* Poskakovanie bodky v pokoji — väčšinu času stojí, potom jemne odskočí */
.logo-anim--skace .logo-anim__bodka {
  animation: logo-anim-skok var(--la-rytmus, 2.6s) cubic-bezier(.3, 0, .3, 1) infinite;
}

@keyframes logo-anim-skok {
  0%, 62%, 100% {
    transform: translateY(0);
  }
  72% {
    transform: translateY(calc(var(--la-skok, .14em) * -1));
  }
  82% {
    transform: translateY(0);
  }
  88% {
    transform: translateY(calc(var(--la-skok, .14em) * -.3));
  }
  94% {
    transform: translateY(0);
  }
}

/* Rozbalený stav — myš, klávesnica, ťuknutie alebo trvalo rozbalené */
.logo-anim--hover:hover .logo-anim__slovo,
.logo-anim:focus-visible .logo-anim__slovo,
.logo-anim[data-state="open"] .logo-anim__slovo,
.logo-anim--otvorene .logo-anim__slovo {
  grid-template-columns: 1fr;
}

.logo-anim--hover:hover .logo-anim__pismena b,
.logo-anim:focus-visible .logo-anim__pismena b,
.logo-anim[data-state="open"] .logo-anim__pismena b,
.logo-anim--otvorene .logo-anim__pismena b {
  transform: none;
  opacity: 1;
  transition-delay: calc(var(--i) * var(--la-krok, 70ms) + 120ms);
}

.logo-anim--hover:hover .logo-anim__bodka,
.logo-anim:focus-visible .logo-anim__bodka,
.logo-anim[data-state="open"] .logo-anim__bodka,
.logo-anim--otvorene .logo-anim__bodka {
  margin-left: .025em;
  animation: none;
}

@media (prefers-reduced-motion: reduce) {
  .logo-anim__slovo,
  .logo-anim__pismena b,
  .logo-anim__bodka {
    transition: none !important;
    animation: none !important;
  }
}