:root {
  color-scheme: dark;
  --fundo: #000;
  --cinza: #8d8a84;
  --osso: #d8d4c8;
  --borda: rgba(216, 212, 200, .22);
  --borda-forte: rgba(216, 212, 200, .5);
  --margem: max(20px, env(safe-area-inset-right));
  --margem-baixo: max(20px, env(safe-area-inset-bottom));
}

html, body {
  margin: 0;
  height: 100%;
  background: var(--fundo);
  overflow: hidden;
}

body {
  font: 14px/1.4 "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  color: var(--cinza);
  -webkit-font-smoothing: antialiased;
}

.oculto {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

#cena {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  opacity: 0;
  transition: opacity 1.4s ease-out;
}
#cena.pronto { opacity: 1; }

/* Sem WebGL: sigilo vetorial com giro lento */
#reserva {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  perspective: 900px;
  background: radial-gradient(ellipse 60% 50% at 50% 46%, #0e1016 0%, #000 70%);
}
#reserva[hidden] { display: none; }
#reserva img {
  width: min(58vmin, 420px);
  height: auto;
  filter: drop-shadow(0 0 28px rgba(154, 16, 22, .35));
  animation: girar 44s linear infinite;
}
@keyframes girar {
  from { transform: rotateY(0); }
  to   { transform: rotateY(1turn); }
}

/* Botão de música */
#musica {
  position: fixed;
  right: var(--margem);
  bottom: var(--margem-baixo);
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--borda);
  background: rgba(0, 0, 0, .45);
  color: var(--cinza);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color .3s, color .3s, opacity .3s;
}
#musica:hover, #musica:focus-visible { border-color: var(--borda-forte); color: var(--osso); }
#musica:focus-visible { outline: 1px solid var(--osso); outline-offset: 3px; }
#musica[data-estado="carregando"] { opacity: .3; }
#musica[data-estado="sem-faixa"] { opacity: .45; }

.barras { width: 18px; height: 18px; display: block; }
.barras rect {
  fill: currentColor;
  transform-box: fill-box;
  transform-origin: center bottom;
}
#musica[data-estado="tocando"] .barras rect { animation: pulsar 1.1s ease-in-out infinite alternate; }
#musica[data-estado="tocando"] .barras rect:nth-child(2) { animation-delay: -.3s; }
#musica[data-estado="tocando"] .barras rect:nth-child(3) { animation-delay: -.6s; }
#musica[data-estado="tocando"] .barras rect:nth-child(4) { animation-delay: -.15s; }
@keyframes pulsar {
  from { transform: scaleY(.35); }
  to   { transform: scaleY(1); }
}

.rotulo {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  translate: 0 -50%;
  white-space: nowrap;
  font-style: italic;
  font-size: 14px;
  color: var(--cinza);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
#musica:hover .rotulo, #musica:focus-visible .rotulo, #musica.mostrar .rotulo { opacity: 1; }

#aviso {
  position: fixed;
  right: var(--margem);
  bottom: calc(var(--margem-baixo) + 56px);
  margin: 0;
  max-width: min(70vw, 320px);
  text-align: right;
  font-style: italic;
  font-size: 13px;
  color: var(--cinza);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
#aviso.visivel { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  #cena { transition: none; }
  #reserva img { animation: none; }
  #musica[data-estado="tocando"] .barras rect { animation: none; }
}