/* ============================================================
   PAGE TRANSITION — cortina roxa que sobe ao navegar
   ============================================================ */

#page-transition {
  position: fixed;
  inset: 0;
  z-index: var(--z-transition);
  pointer-events: none;
  transform: translateY(100%);
  background: var(--purple);
  /* leve gradiente para dar profundidade à cortina */
  background-image: linear-gradient(180deg, var(--purple-light), var(--purple-dark));
  transition: transform 0.45s var(--ease-in-out);
}

/* marca da cortina (aparece durante a transição) */
#page-transition .pt-mark {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  letter-spacing: -0.02em;
  color: #fff;
  opacity: 0;
  transition: opacity 0.25s ease;
}
#page-transition .pt-mark svg { width: 1.3em; height: 1.3em; }

/* coberta instantaneamente (página recém-chegada, antes do reveal) */
#page-transition.is-cover {
  transform: translateY(0);
  transition: none;
}
#page-transition.is-cover .pt-mark { opacity: 1; }

/* entrando: cortina cobre a tela */
#page-transition.is-enter {
  transform: translateY(0);
}
#page-transition.is-enter .pt-mark { opacity: 1; }

/* saindo: cortina sobe e deixa o quadro */
#page-transition.is-exit {
  transform: translateY(-100%);
}

@media (prefers-reduced-motion: reduce) {
  #page-transition { display: none !important; }
}