/* Esperimenti (30/10): sette cose costruite davvero. Mazzo di schermate nell'apertura, indice fisso,
   capitoli a due colonne con la schermata che si apre allo scroll, il totem dal vivo, la notte per il salotto. */
body[data-pagina="esperimenti"] .hud { display: none; }
.lab { position: relative; z-index: 1; }
.lab-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.lab .ic { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.lab a, .lab button { -webkit-tap-highlight-color: transparent; }
.lab :is(a, button):focus-visible { outline: 2px solid var(--imperial); outline-offset: 4px; border-radius: 10px; }
.lab .notte :is(a, button):focus-visible { outline-color: var(--sky); }

/* apertura */
.lab-apertura { padding: calc(var(--testa-h) + clamp(40px, 6vw, 88px)) 0 clamp(48px, 6vw, 88px); min-height: min(1040px, 100svh); display: flex; align-items: center; }
.lab-apertura-griglia { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 5vw, 96px); align-items: center; }
.lab-apertura h1 { font-size: var(--t-t1); line-height: .98; color: var(--titolo); text-wrap: balance; }
.lab-apertura h1 span { color: var(--sky); }
.lab-lead { margin-top: clamp(18px, 2vw, 28px); font-size: var(--t-lead); line-height: 1.5; color: var(--sky-chiaro); text-wrap: pretty; }
.lab-elenco { margin-top: clamp(24px, 3vw, 40px); border-bottom: 1px solid var(--linea); }
.lab-elenco a { position: relative; display: grid; grid-template-columns: 28px minmax(0, auto) minmax(0, 1fr); align-items: center; gap: 4px 14px; padding: 11px 0; border-top: 1px solid var(--linea); text-decoration: none; color: var(--mint); }
.lab-elenco .ic { color: var(--sky); transition: color .3s, transform .5s var(--esce); }
.lab-elenco b { font: 600 var(--t-testo)/1.25 var(--display); transition: transform .5s var(--esce); }
.lab-elenco span { font-size: var(--t-piccolo); line-height: 1.35; color: var(--nebbia); text-align: right; }
.lab-elenco a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--imperial); transform: scaleX(0); transform-origin: left; transition: transform .6s var(--esce); }
.lab-elenco a:is(:hover, :focus-visible, .is-su) .ic { color: var(--fucsia); transform: scale(1.12); }
.lab-elenco a:is(:hover, :focus-visible, .is-su) b { transform: translateX(4px); }
.lab-elenco a:is(:hover, :focus-visible, .is-su)::after { transform: scaleX(1); }

/* il mazzo di schermate */
.lab-mazzo { position: relative; aspect-ratio: 16 / 10.4; perspective: 1800px; }
.lab-mazzo-piano { position: absolute; inset: 0; transform-style: preserve-3d; }
.lab-carta { position: absolute; inset: 6% 0 0 7%; border-radius: 18px; overflow: hidden; background: #fff; box-shadow: 0 1px 2px rgba(14, 46, 62, .06), 0 40px 70px -40px rgba(14, 46, 62, .45); outline: 1px solid rgba(14, 46, 62, .08); outline-offset: -1px; transform-origin: 30% 100%; will-change: transform; }
.lab-carta img { width: 100%; height: 100%; object-fit: cover; object-position: left top; pointer-events: none; }
.lab-carta::after { content: ""; position: absolute; inset: 0; background: #0e2e3e; opacity: var(--velo, 0); transition: opacity .6s; pointer-events: none; }
.lab-mazzo-nome { position: absolute; left: 7%; bottom: -44px; display: flex; align-items: center; gap: 10px; font: 600 var(--t-piccolo)/1 var(--display); color: var(--sky-chiaro); }
.lab-mazzo-nome .ic { color: var(--fucsia); }
/* senza JS o con il moto ridotto: un ventaglio fermo */
.lab-mazzo:not(.vivo) .lab-carta:nth-child(n+4) { display: none; }
.lab-mazzo:not(.vivo) .lab-carta:nth-child(2) { transform: translate(-4%, -5%) scale(.94) rotate(-2deg); z-index: -1; --velo: .08; }
.lab-mazzo:not(.vivo) .lab-carta:nth-child(3) { transform: translate(-8%, -10%) scale(.88) rotate(-4deg); z-index: -2; --velo: .16; }

/* indice fisso */
.lab-indice { position: sticky; top: var(--testa-h); z-index: 30; background: rgba(249, 255, 251, .9); -webkit-backdrop-filter: blur(14px) saturate(1.2); backdrop-filter: blur(14px) saturate(1.2); border-block: 1px solid var(--linea); }
.lab-indice .riga { display: flex; align-items: center; justify-content: space-between; gap: clamp(12px, 2vw, 32px); min-height: 56px; overflow-x: auto; scrollbar-width: none; }
.lab-indice .riga::-webkit-scrollbar { display: none; }
.lab-indice a { position: relative; display: inline-flex; align-items: center; gap: 8px; min-height: 56px; font: 500 var(--t-piccolo)/1 var(--display); color: var(--nebbia); text-decoration: none; white-space: nowrap; transition: color .3s; }
.lab-indice a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; border-radius: 2px; background: var(--fucsia); transform: scaleX(0); transition: transform .5s var(--esce); }
.lab-indice a:hover { color: var(--mint); }
.lab-indice a[aria-current="location"] { color: var(--mint); }
.lab-indice a[aria-current="location"]::after { transform: scaleX(1); }
.lab-indice a[aria-current="location"] .ic { color: var(--fucsia); }
.lab-indice kbd { font: 400 var(--t-micro)/1 var(--display); color: var(--nebbia); border: 1px solid var(--linea); border-radius: 6px; padding: 3px 6px; }
@media (hover: none) { .lab-indice kbd { display: none; } }

/* capitoli */
.lab-capitolo { position: relative; padding: clamp(80px, 10vw, 160px) 0; scroll-margin-top: calc(var(--testa-h) + 40px); }
.notte + .lab-capitolo { padding-top: clamp(150px, 18vw, 260px); }
.lab-capitolo:has(+ .notte) { padding-bottom: clamp(150px, 18vw, 260px); }
.lab-capitolo-griglia { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 5vw, 96px); align-items: center; }
.lab-capitolo--rovescio .lab-capitolo-griglia { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.lab-capitolo--rovescio .lab-testo { order: 2; }
.lab-testo h2 { font-size: var(--t-t2); line-height: 1.02; color: var(--titolo); text-wrap: balance; }
.lab-testo h2 span { color: var(--sky); }
.lab-sotto { margin-top: clamp(16px, 1.6vw, 24px); font-size: var(--t-lead); line-height: 1.5; color: var(--sky-chiaro); text-wrap: pretty; }
.lab-punti { margin-top: clamp(20px, 2vw, 32px); border-bottom: 1px solid var(--linea); }
.lab-punti li { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 12px; align-items: start; padding: 12px 0; border-top: 1px solid var(--linea); font-size: var(--t-testo); line-height: 1.5; color: var(--mint); }
.lab-punti .ic { margin-top: .12em; color: var(--sky); }
.lab-stato { display: flex; align-items: center; gap: 8px; margin-top: 18px; font-size: var(--t-piccolo); color: var(--nebbia); }
.lab-azioni { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin-top: 22px; }
.lab-azione { display: inline-flex; align-items: center; gap: 10px; min-height: 52px; margin-top: 22px; padding: 0 22px; border-radius: 999px; background: var(--jet); color: #f9fffb; font: 600 var(--t-testo)/1 var(--display); text-decoration: none; transition: transform .45s var(--esce), box-shadow .45s var(--esce), background-color .3s; box-shadow: 0 16px 34px -22px rgba(14, 46, 62, .7); }
.lab-azioni .lab-azione { margin-top: 0; }
.lab-azione .ic { transition: transform .45s var(--esce); }
.lab-azione:hover { transform: translateY(-2px); box-shadow: 0 22px 40px -22px rgba(14, 46, 62, .8); }
.lab-azione:hover .ic { transform: translateX(3px); }
.lab-azione:hover use[href="#i-arrow-up-right"] { transform: translate(1px, -1px); }
.lab-azione--leggera { background: none; color: var(--imperial); padding: 0 4px; box-shadow: none; }
.lab-azione--leggera:hover { box-shadow: none; text-decoration: underline; }
.notte .lab-azione { background: #f9fffb; color: var(--jet); }

.lab-media { position: relative; }
.lab-schermo { position: relative; border-radius: 20px; overflow: hidden; background: #fff; aspect-ratio: 1440 / 900; box-shadow: 0 1px 2px rgba(14, 46, 62, .06), 0 50px 90px -50px rgba(14, 46, 62, .5); clip-path: inset(0 round 20px); }
.lab-schermo::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgba(14, 46, 62, .08); pointer-events: none; }
.lab-schermo img { width: 100%; height: 100%; object-fit: cover; object-position: left top; transform-origin: 30% 30%; }
.lab-media figcaption { margin-top: 14px; font-size: var(--t-piccolo); color: var(--nebbia); }
.notte .lab-schermo { box-shadow: 0 60px 120px -50px rgba(0, 0, 0, .8); }

/* il totem dal vivo */
.lab-totem { position: relative; min-height: clamp(360px, 32vw, 520px); border-radius: 20px; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 48px); padding: clamp(22px, 3vw, 44px); color: #f9fffb;
  background: radial-gradient(70% 80% at 12% 10%, rgba(142, 183, 206, .22), transparent 60%), linear-gradient(150deg, #1b2c6c, #0b2433); box-shadow: 0 30px 60px -34px rgba(7, 28, 39, .55); }
.totem-voce { display: flex; flex-direction: column; justify-content: flex-end; min-height: 0; }
.totem-onda { width: 100%; height: clamp(90px, 12vw, 170px); margin: auto 0; }
.totem-battuta { font: 500 clamp(1.25rem, .9rem + .9vw, 1.75rem)/1.15 var(--voce); letter-spacing: -.02em; font-variation-settings: "SOFT" 100, "WONK" 0; min-height: 3.4em; display: flex; align-items: flex-end; }
.totem-battuta.persona { color: #f7cdb6; }
.totem-battuta .cursore::after { content: ""; display: inline-block; width: 2px; height: .9em; margin-left: 3px; vertical-align: -.08em; background: currentColor; animation: totem-cursore 1s steps(1) infinite; }
@keyframes totem-cursore { 50% { opacity: 0; } }
.totem-parete { display: flex; flex-direction: column; justify-content: center; padding-top: 36px; }
.totem-capo { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; font: 600 var(--t-piccolo)/1.2 var(--display); color: #d6e5ee; padding-bottom: 12px; border-bottom: 1px solid rgba(214, 229, 238, .18); }
.totem-capo b { font: 400 clamp(2.4rem, 1.4rem + 2.4vw, 4rem)/1 var(--display); color: #f9fffb; font-variant-numeric: tabular-nums; }
.totem-parete ul { display: grid; }
.totem-parete li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 12px; align-items: center; padding: 11px 0; border-bottom: 1px solid rgba(214, 229, 238, .12); font-size: var(--t-piccolo); color: #d6e5ee; }
.totem-parete li i { grid-column: 1 / -1; height: 6px; border-radius: 6px; background: var(--c); width: calc(var(--w, .5) * 100%); transition: width .9s var(--esce); }
.totem-parete li b { grid-row: 1; grid-column: 2; font: 600 var(--t-testo)/1 var(--display); color: #d6e5ee; font-variant-numeric: tabular-nums; transition: color .4s; }
.totem-parete li.arriva span { color: #f9fffb; }
.totem-parete li.arriva b { color: #fff; }
.totem-pausa { position: absolute; right: 14px; top: 14px; display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px; border-radius: 999px; border: 1px solid rgba(214, 229, 238, .28); background: rgba(7, 28, 39, .35); color: #d6e5ee; font: 500 var(--t-micro)/1 var(--display); cursor: pointer; transition: background-color .3s, color .3s; }
.totem-pausa:hover { background: rgba(7, 28, 39, .6); color: #fff; }
.totem-pausa .ic { width: 14px; height: 14px; }

/* chiusura */
.lab-finale { padding: clamp(64px, 8vw, 120px) 0 clamp(24px, 4vw, 48px); }
.lab-finale-griglia { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 96px); align-items: end; padding-top: clamp(32px, 4vw, 56px); border-top: 1px solid var(--linea); }
.lab-finale h2 { font-size: var(--t-t2); line-height: 1.02; color: var(--titolo); }
.lab-finale h2 span { color: var(--sky); }
.lab-finale p { font-size: var(--t-lead); line-height: 1.5; color: var(--sky-chiaro); }

@media (max-width: 1080px) {
  .lab-apertura { min-height: 0; }
  .lab-apertura-griglia, .lab-capitolo-griglia, .lab-capitolo--rovescio .lab-capitolo-griglia, .lab-finale-griglia { grid-template-columns: minmax(0, 1fr); }
  .lab-capitolo--rovescio .lab-testo { order: 0; }
  .lab-mazzo { margin-bottom: 44px; }
}
@media (max-width: 600px) {
  .lab-elenco a { grid-template-columns: 26px minmax(0, 1fr); }
  .lab-elenco span { grid-column: 2; text-align: left; }
  .lab-mazzo-nome { bottom: -36px; }
  .lab-indice .riga { justify-content: flex-start; gap: 20px; }
  .lab-schermo, .lab-totem { border-radius: 14px; clip-path: inset(0 round 14px); }
  .lab-totem { min-height: 0; grid-template-columns: minmax(0, 1fr); gap: 18px; padding: 20px; }
  .totem-onda { height: 80px; margin-bottom: 12px; }
  .totem-battuta { min-height: 4.6em; }
  .totem-parete { padding-top: 0; }
  .lab-azione { width: 100%; justify-content: center; }
  .lab-azioni .lab-azione--leggera { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .lab *, .lab *::before, .lab *::after { transition-duration: .01ms !important; animation: none !important; }
}