/*
  Ibrahim Maiga – úvodné video (intro)
  Čierna plocha, pôvodný pomer strán videa (nič sa neorezáva), dve textové tlačidlá.
  Jediný pohyb: krátke stmievanie na konci, a aj to sa vypne pri "obmedziť pohyb".
*/

/* Kým sa intro pripraví, prekryje stránku čiernou plochou (len keď je zapnutý JavaScript). */
html.intro-pending body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  background: #000;
}

html.intro-open {
  overflow: hidden;
}

.ibi-intro {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.ibi-intro.is-leaving {
  opacity: 0;
  pointer-events: none;
}

.ibi-intro__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain; /* zachová celý záber aj tváre, na mobile pribudnú čierne pásy */
  background: #000;
}

.ibi-intro__btn {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  font: 500 15px/1 "Alegreya Sans", "Gill Sans", "Segoe UI", sans-serif;
  letter-spacing: 0.01em;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 2px;
  cursor: pointer;
}

.ibi-intro__btn:hover {
  background: rgba(0, 0, 0, 0.8);
  border-color: #fff;
}

.ibi-intro__btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.ibi-intro__skip {
  top: max(16px, env(safe-area-inset-top));
  right: max(16px, env(safe-area-inset-right));
}

.ibi-intro__sound {
  left: max(16px, env(safe-area-inset-left));
  bottom: max(20px, calc(env(safe-area-inset-bottom) + 12px));
}

/* Tenká linka dole ukazuje, koľko z úvodu ešte zostáva. */
.ibi-intro__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.18);
}

.ibi-intro__progress span {
  display: block;
  height: 100%;
  background: #fff;
  transform: scaleX(0);
  transform-origin: left center;
}

/* Nenápadný odkaz na hlavnej stránke */
.intro-replay {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  cursor: pointer;
}

.intro-replay:hover {
  text-decoration-thickness: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .ibi-intro {
    transition: none;
  }
}