/* ==========================================================================
   Fabbrica Siti — anim.css
   Stili delle animazioni a data-attribute. Funziona con anim.js.
   Regola d'oro: senza JavaScript o con "riduci movimento" TUTTO resta visibile.
   ========================================================================== */

:root {
  --anim-durata: .8s;
  --anim-easing: cubic-bezier(.2, .7, .2, 1);
  --anim-distanza: 28px;
}

/* --- Reveal (tutti i pacchetti) ------------------------------------------
   Gli elementi vengono nascosti solo quando anim.js è attivo (html.anim-js). */
.anim-js [data-anim="reveal"],
.anim-js [data-anim="reveal-left"],
.anim-js [data-anim="reveal-right"],
.anim-js [data-anim="zoom"],
.anim-js [data-anim="stagger"] > * {
  opacity: 0;
  transition: opacity var(--anim-durata) var(--anim-easing),
              transform var(--anim-durata) var(--anim-easing);
  transition-delay: var(--anim-delay, 0s);
  will-change: opacity, transform;
}
.anim-js [data-anim="reveal"]        { transform: translateY(var(--anim-distanza)); }
.anim-js [data-anim="reveal-left"]   { transform: translateX(calc(var(--anim-distanza) * -1)); }
.anim-js [data-anim="reveal-right"]  { transform: translateX(var(--anim-distanza)); }
.anim-js [data-anim="zoom"]          { transform: scale(.94); }
.anim-js [data-anim="stagger"] > *   { transform: translateY(var(--anim-distanza)); }

.anim-js [data-anim].is-in,
.anim-js [data-anim="stagger"].is-in > * {
  opacity: 1;
  transform: none;
}

/* --- Titolo che si compone parola per parola ----------------------------- */
.anim-js [data-anim="split"] .anim-parola {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
}
.anim-js [data-anim="split"] .anim-parola > span {
  display: inline-block;
  transform: translateY(105%);
  transition: transform .9s var(--anim-easing);
  transition-delay: calc(var(--i, 0) * 60ms);
}
.anim-js [data-anim="split"].is-in .anim-parola > span { transform: none; }

/* --- Prima / dopo -------------------------------------------------------- */
[data-anim="before-after"] {
  position: relative;
  overflow: hidden;
  aspect-ratio: var(--ba-ratio, 4 / 3);
  border-radius: var(--ba-radius, 14px);
  user-select: none;
  touch-action: pan-y;
  --ba-pos: 50%;
}
[data-anim="before-after"] > img,
[data-anim="before-after"] > .ba-layer {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
[data-anim="before-after"] > :nth-child(2) { clip-path: inset(0 0 0 var(--ba-pos)); }
[data-anim="before-after"] .ba-maniglia {
  position: absolute; top: 0; bottom: 0; left: var(--ba-pos);
  width: 3px; margin-left: -1.5px;
  background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.15);
  pointer-events: none;
}
[data-anim="before-after"] .ba-maniglia::after {
  content: "\2194"; position: absolute; top: 50%; left: 50%;
  width: 44px; height: 44px; transform: translate(-50%, -50%);
  display: grid; place-items: center; border-radius: 50%;
  background: #fff; color: #111; font: 600 18px/1 system-ui, sans-serif;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
[data-anim="before-after"] input[type="range"] {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: ew-resize; margin: 0;
}
[data-anim="before-after"] .ba-etichetta {
  position: absolute; bottom: 12px; padding: 4px 10px; border-radius: 99px;
  background: rgba(0,0,0,.55); color: #fff; font: 600 12px/1.4 system-ui, sans-serif;
  pointer-events: none;
}
[data-anim="before-after"] .ba-etichetta.prima { left: 12px; }
[data-anim="before-after"] .ba-etichetta.dopo  { right: 12px; }

/* --- Nastro scorrevole (solo CSS) ---------------------------------------- */
[data-anim="marquee"] { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
[data-anim="marquee"] .marquee-traccia {
  display: flex; gap: var(--marquee-gap, 3rem); width: max-content;
  animation: anim-marquee var(--marquee-durata, 30s) linear infinite;
}
[data-anim="marquee"]:hover .marquee-traccia { animation-play-state: paused; }
@keyframes anim-marquee { to { transform: translateX(-50%); } }

/* --- Barra contatti fissa su telefono ------------------------------------ */
.barra-contatti {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 50;
  display: none; gap: 8px;
  transform: translateY(140%);
  transition: transform .45s var(--anim-easing);
}
.barra-contatti a {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; border-radius: 14px; text-decoration: none;
  font: 600 16px/1 system-ui, sans-serif;
}
.barra-contatti.is-visibile { transform: none; }
@media (max-width: 820px) { .barra-contatti { display: flex; } }
.no-anim .barra-contatti, html:not(.anim-js) .barra-contatti { transform: none; }

/* --- Sezione bloccata: niente sbordature orizzontali durante zoom/rotazioni --- */
[data-anim="pin-scrub"], [data-anim="sequence"] { overflow-x: clip; }
[data-anim="parallax"] { will-change: transform; }

/* --- Barra di avanzamento lettura (dinamico, wow) ------------------------ */
.anim-progresso {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60;
  transform-origin: 0 50%; transform: scaleX(0);
  background: var(--anim-accento, currentColor);
}

/* --- Sequenza di immagini (wow) ------------------------------------------ */
[data-anim="sequence"] { position: relative; }
[data-anim="sequence"] canvas { display: block; width: 100%; height: 100vh; height: 100svh; }
[data-anim="sequence"] .sequence-poster { display: block; width: 100%; height: auto; }
.seq-attiva [data-anim="sequence"] .sequence-poster { display: none; }
html:not(.seq-attiva) [data-anim="sequence"] canvas { display: none; }

/* Passi della sezione pin-scrub: finché GSAP non li anima (essenziale, script non caricato, "riduci movimento")
   stanno uno sotto l'altro, anche se lo stile della demo li sovrappone nella stessa cella di griglia. */
[data-anim="pin-scrub"]:not(.scrub-pronto) [data-scrub-step],
.no-anim [data-anim="pin-scrub"] [data-scrub-step] { grid-area: auto !important; position: static !important; opacity: 1 !important; visibility: visible !important; transform: none !important; }
[data-anim="pin-scrub"]:not(.scrub-pronto) [data-scrub-step] + [data-scrub-step],
.no-anim [data-anim="pin-scrub"] [data-scrub-step] + [data-scrub-step] { margin-top: 20px; }

/* --- Rispetto di "riduci movimento" --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .anim-js [data-anim],
  .anim-js [data-anim] > *,
  .anim-js [data-anim="split"] .anim-parola > span {
    opacity: 1 !important; transform: none !important; transition: none !important;
  }
  [data-anim="marquee"] .marquee-traccia { animation: none; flex-wrap: wrap; width: auto; }
}
.no-anim [data-anim],
.no-anim [data-anim] > *,
.no-anim [data-anim="split"] .anim-parola > span {
  opacity: 1 !important; transform: none !important; transition: none !important;
}