/* cube story */
.story{height:300vh;margin:1rem 0 5rem}
.sticky{position:sticky;top:0;height:100svh;display:grid;grid-template-columns:1.1fr 1fr;gap:3.5rem;align-items:center}
.stage{position:relative;aspect-ratio:1/1;width:min(100%,78svh);background:#fff;overflow:hidden}
.layer{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;will-change:transform,opacity}
.l-b{object-fit:contain;padding:4%}
.l-c{clip-path:circle(0% at 50% 50%)}
.bar{position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--brass);z-index:5}
.steps-cap h3{margin-bottom:1.5rem}
.step{padding:1rem 0 1rem 1.2rem;border-left:2px solid rgba(42,29,20,.15);opacity:.35;transition:opacity .4s,border-color .4s}
.step.on{opacity:1;border-color:var(--brass)}
.step h4{font:500 1.25rem var(--serif);margin-bottom:.25rem}
.step p{color:var(--muted);font-size:1rem;margin:0}
.cube-info{display:grid;grid-template-columns:1.1fr 1fr;gap:3.5rem;margin-bottom:5rem}
.cube-info dl{margin:0}
.cube-info dt{font:500 1.15rem var(--serif);margin-top:1.4rem}
.cube-info dt:first-child{margin-top:0}
.cube-info dd{margin:.2rem 0 0;color:var(--muted)}
.specs{border-top:1px solid rgba(42,29,20,.15)}
.specs div{display:flex;justify-content:space-between;gap:1.5rem;padding:.6rem 0;border-bottom:1px solid rgba(42,29,20,.15);font-size:.98rem}
.specs span:first-child{color:var(--muted)}.specs span:last-child{text-align:right}
@media (max-width:820px){
  .sticky{grid-template-columns:1fr;grid-template-rows:auto auto;align-content:center;gap:1rem}
  .stage{width:min(100%,46svh);margin:0 auto}
  .step{display:none}.step.on{display:block}
  .cube-info{grid-template-columns:1fr;gap:2.5rem}
}
@media (prefers-reduced-motion:reduce){
  .story{height:auto}.sticky{position:static;height:auto}
  .stage{aspect-ratio:auto;width:100%;display:grid;gap:1rem}
  .layer{position:static;opacity:1!important;transform:none!important;clip-path:none!important;height:auto}
  .step{opacity:1}.bar{display:none}
}



/* assembly animation */
.assembly{display:grid;grid-template-columns:1.1fr 1fr;gap:3.5rem;align-items:center;margin:1rem 0 4rem}
.scene{position:relative;aspect-ratio:1/1;width:100%;perspective:1700px;overflow:hidden;background:radial-gradient(60% 50% at 50% 62%,#f4f1ec,#fff 75%)}
.world{position:absolute;left:50%;top:58%;width:0;height:0;transform-style:preserve-3d}
.p{position:absolute;width:200px;height:200px;box-sizing:border-box;border:3px solid #c3a266;
  background:repeating-linear-gradient(94deg,rgba(150,105,50,.13) 0 2px,transparent 2px 11px),linear-gradient(135deg,#f0ddb2,#e0c48a)}
.p.base{background:repeating-linear-gradient(94deg,rgba(150,105,50,.13) 0 2px,transparent 2px 11px),linear-gradient(135deg,#e6cd98,#d6b676)}
.p *{position:absolute}
.tab{background:#f6e7c0;border:1px solid #c3a266}
.slot{background:#8b6a3a;box-shadow:inset 0 2px 3px rgba(0,0,0,.45)}
.hdl{border-radius:20px;background:#6e4e28;box-shadow:inset 0 3px 4px rgba(0,0,0,.55),0 1px 0 rgba(255,255,255,.5)}
.p.done .tab{animation:click .9s ease-out}
@keyframes click{0%{background:#ffb04a;transform:scale(1.3)}100%{background:#f6e7c0;transform:none}}
.acap h1{font:300 clamp(2.2rem,4.6vw,3.4rem)/1.08 var(--serif);letter-spacing:-.02em;margin-bottom:.6rem}
.phase{min-height:3.4em;margin:0 0 1.4rem;max-width:36ch}
.ctrl{display:flex;align-items:center;gap:1rem;max-width:420px}
.ctrl input{flex:1;accent-color:var(--brass)}
@media (max-width:820px){.assembly{grid-template-columns:1fr;gap:1.5rem}}

/* cube v2 */
.story{height:400vh}
.l-d{clip-path:inset(100% 0 0 0)}
.steps-cap h3{margin-bottom:.4rem}
.lead2{color:var(--muted);margin:0 0 1.5rem;max-width:34ch}
.sec{margin-bottom:5rem}
.sec>h3{margin-bottom:.5rem}
.sec>.sub{color:var(--muted);max-width:50ch;margin-bottom:1.8rem}
.composer{display:grid;grid-template-columns:auto 1fr;gap:3rem;align-items:center}
.grid{display:grid;grid-template-columns:repeat(4,76px);grid-auto-rows:76px;gap:4px;padding:12px;background:var(--walnut-2)}
.cell{position:relative;padding:0;border:1px dashed rgba(42,29,20,.25);background:transparent;cursor:pointer;transition:background .35s,border-color .35s}
.cell::before{content:"";position:absolute;inset:14%;background:rgba(0,0,0,.16);opacity:0;transition:opacity .35s}
.cell[data-s="1"]{background:#e3c98f;border:1px solid #b99a5c}
.cell[data-s="2"]{background:#8a5230;border:1px solid #5c351e}
.cell:not([data-s="0"])::before{opacity:1}
.presets{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0}
.count{min-height:1.6em;margin-bottom:1rem}
.ess{display:grid;grid-template-columns:1.1fr 1fr;gap:3.5rem;align-items:center}
.zoomwrap{aspect-ratio:1/1;overflow:hidden;background:#fff}
.zoomwrap img{display:block;width:100%;height:100%;object-fit:cover;transition:transform 1.1s cubic-bezier(.2,.7,.2,1)}
.hot{position:relative;aspect-ratio:1/1;background:var(--walnut-2);overflow:hidden}
.hot img{display:block;width:100%;height:100%;object-fit:cover}
.dot{position:absolute;width:30px;height:30px;transform:translate(-50%,-50%);border-radius:50%;border:2px solid #fff;background:var(--brass);cursor:pointer;padding:0}
.dot::after{content:"";position:absolute;inset:-2px;border-radius:50%;border:2px solid var(--brass);animation:ping 2.4s ease-out infinite}
.dot[aria-pressed=true]{background:var(--ink)}
@keyframes ping{from{transform:scale(1);opacity:.8}to{transform:scale(1.9);opacity:0}}
.hot-cap{min-height:3.2em;margin-top:.8rem;color:var(--muted)}
.cta{margin-top:2rem}
@media (max-width:820px){
  .composer,.ess{grid-template-columns:1fr;gap:2rem}
  .grid{grid-template-columns:repeat(4,1fr);grid-auto-rows:auto}
  .cell{aspect-ratio:1/1}
  .lead2{display:none}
}

.cube-page{padding-top:2rem}
.back{display:inline-block;margin-top:3rem;text-decoration:none;border-bottom:1px solid var(--brass);padding-bottom:.15rem}

/* spazi ridotti tra apertura, "Il Cube dal vero" e "Componi il tuo Cube" */
.assembly{margin:1rem 0 1.5rem}
.story{height:300vh;margin:0 0 3rem}
.sticky{height:auto;top:5.5rem;padding:1rem 0}
@media (max-width:820px){.sticky{top:4rem}}
@media (prefers-reduced-motion:reduce){.sticky{position:static}}

/* presentazione accanto all'animazione, come Vinyl e Wave */
.kicker{font:500 .75rem var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--brass);margin-bottom:.9rem}
.acap .lead2{max-width:40ch;margin-bottom:1.4rem}
.facts{display:flex;flex-wrap:wrap;gap:.5rem 1.6rem;margin:0 0 1.8rem;padding:0;list-style:none;color:var(--ink);font-size:.95rem}
.facts li{padding-left:.9rem;position:relative}
.facts li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;background:var(--brass);border-radius:50%}
.ctas{display:flex;flex-wrap:wrap;gap:1rem 1.4rem;align-items:center}
.link{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--brass);padding-bottom:.15rem}
.link:hover{color:var(--brass)}
.link.tel{display:inline-flex;align-items:center;gap:.4rem;white-space:nowrap}
.link.tel svg{color:var(--brass)}
.anim{margin-top:2rem;padding-top:1.2rem;border-top:1px solid rgba(42,29,20,.12)}
.anim .phase{min-height:2.6em;margin:0 0 .8rem;font-size:.9rem;color:var(--muted)}
@media (max-width:820px){.acap .lead2{display:block!important}}
.assembly{grid-template-columns:1fr 1.35fr;gap:3rem}
.ctas{gap:.8rem 1rem}
.ctas .btn{padding:.8rem 1.3rem}
@media (max-width:820px){.assembly{grid-template-columns:1fr}}