:root {
  --carta: #FFFFFF;
  --nero: #000000;
  --grigio: #8A8A8A;
  --filo: #D9D9D9;
  --sans: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: inherit; }
html { height: 100%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--carta); color: var(--nero);
  font-family: var(--sans); font-weight: 300;
  font-size: 1rem; line-height: 1.35;
}
.pagina { max-width: 58rem; margin: 0 auto; padding: 1.75rem 1.25rem 9rem; }

/* Testata: titolo grande come nel foglio di sala */
.testata { margin-bottom: 2rem; }
.testata h1 { margin: 0; line-height: 0; }
.titolo { display: block; width: 100%; max-width: 44rem; height: auto; margin: 0 auto; }

.guida { margin: 0 auto 1.75rem; max-width: 34rem; }
.guida .benvenuto { font-size: 1.15rem; font-weight: 400; line-height: 1.3; margin: 0 0 0.5rem; }
.guida .benvenuto i { font-style: normal; }
.guida .intro { margin: 0 0 1.25rem; }
.guida h2 { font-size: 1rem; font-weight: 500; margin: 0 0 0.4rem; }
.guida ol { margin: 0 0 1rem; padding-left: 1.3rem; }
.guida li { margin-bottom: 0.35rem; padding-left: 0.2rem; }
.guida p { margin: 0 0 0.6rem; }
.mappa { display: block; width: 100%; max-width: 30rem; height: auto; margin: 0 auto 2.5rem; }

/* Sblocco e download */
.sblocco label { display: block; font-weight: 500; margin-bottom: 0.5rem; }
.riga-codice { display: flex; gap: 0.5rem; max-width: 26rem; }
input[type="text"] {
  flex: 1; min-width: 0; font: inherit; font-size: 1.3rem; font-weight: 400;
  letter-spacing: 0.1em; padding: 0.55rem 0.7rem;
  color: var(--nero); background: transparent; border: 1px solid var(--nero); border-radius: 0;
}
input[type="text"]::placeholder { color: var(--filo); }
button { font: inherit; cursor: pointer; color: inherit; }
#btn-sblocca, .secondario {
  font-weight: 500; padding: 0.55rem 1.1rem; border-radius: 0;
  background: var(--nero); color: var(--carta); border: 1px solid var(--nero);
}
.secondario { background: transparent; color: var(--nero); margin-top: 1rem; }
button:disabled { cursor: default; }
:focus-visible { outline: 2px solid var(--nero); outline-offset: 2px; }
.messaggio { min-height: 1.4em; margin: 0.5rem 0 0; }
.stato { margin: 0 0 0.6rem; font-weight: 500; }
.barra { height: 2px; background: var(--filo); max-width: 26rem; }
.barra-pieno { height: 100%; width: 0; background: var(--nero); transition: width 0.2s; }
.nota { color: var(--grigio); font-size: 0.9rem; }
.pronto { color: var(--grigio); font-size: 0.9rem; margin: 0 0 2rem; }

/* Sala: pianta + didascalie */
.sala { margin-bottom: 3rem; }
.pianta { position: relative; container-type: inline-size; max-width: 36rem; margin: 0 auto 1.5rem; }
.pianta img { display: block; width: 100%; height: auto; }
.punto {
  position: absolute; transform: translate(-50%, -50%);
  width: 7cqw; height: 7cqw; min-width: 1.6rem; min-height: 1.6rem;
  padding: 0; border: 0; border-radius: 50%; background: transparent;
  color: transparent; font-size: 2.7cqw; font-weight: 400;
  display: grid; place-items: center; -webkit-tap-highlight-color: transparent;
}
.punto:disabled { pointer-events: none; }
.punto[aria-current="true"] { background: var(--nero); color: var(--carta); }

.didascalie { list-style: none; margin: 0; padding: 0; }
@media (min-width: 46rem) { .didascalie { columns: 2; column-gap: 2.25rem; } }
.didascalie li { break-inside: avoid; }
.didascalia {
  position: relative; display: block; width: 100%; text-align: left;
  padding: 0.3rem 0.4rem 0.3rem 1.15rem; margin: 0 0 0.15rem;
  background: none; border: 0; font-weight: 300; font-size: 0.92rem; line-height: 1.3;
  -webkit-tap-highlight-color: transparent;
}
.didascalia i { font-style: italic; }
.didascalia br.ac { display: none; }
@media (min-width: 46rem) { .didascalia br.ac { display: inline; } }
.didascalia::before {
  content: ""; position: absolute; left: 0.2rem; top: 0.62rem;
  border-style: solid; border-width: 0.3rem 0 0.3rem 0.5rem;
  border-color: transparent transparent transparent currentColor;
}
.didascalia:disabled { color: var(--grigio); }
.didascalia:disabled::before { display: none; }
.didascalia .arrivo { font-size: 0.8rem; white-space: nowrap; }
.didascalia[aria-current="true"] { background: var(--nero); color: var(--carta); }

/* Player */
.player {
  position: fixed; left: 0; right: 0; bottom: 0;
  padding: 0.7rem 1.1rem calc(0.7rem + env(safe-area-inset-bottom, 0px));
  background: var(--carta); border-top: 1px solid var(--nero);
  display: flex; align-items: center; gap: 0.9rem;
}
.player[hidden] { display: none; }
.play {
  flex: 0 0 auto; width: 2.9rem; height: 2.9rem; padding: 0; border-radius: 50%;
  background: var(--nero); color: var(--carta); border: 0; display: grid; place-items: center;
}
.play svg { width: 1.2rem; height: 1.2rem; fill: currentColor; }
.player-info { flex: 1; min-width: 0; }
.player-nome { margin: 0; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-tempo { display: flex; justify-content: space-between; margin: 0; font-size: 0.8rem; color: var(--grigio); font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; margin: 0.25rem 0 0; accent-color: var(--nero); }
@media (prefers-reduced-motion: reduce) { .barra-pieno { transition: none; } }

/* Tutto centrato nella pagina, testi allineati a sinistra */
.sblocco, .scarica, .pronto { max-width: 34rem; margin-left: auto; margin-right: auto; }
.didascalie { max-width: 48rem; margin-left: auto; margin-right: auto; }
.testata { max-width: 44rem; margin-left: auto; margin-right: auto; }
.intro-audio { max-width: 34rem; margin: 0 auto 1.75rem; }
.intro-audio .didascalia { font-weight: 400; font-size: 1rem; border: 1px solid var(--nero); padding: 0.6rem 0.8rem 0.6rem 1.6rem; }
.intro-audio .didascalia::before { left: 0.75rem; top: 0.95rem; }