/* ===== EmiFotoOttica — sezione animazione 3D servizi ===== */
.svc3d{position:relative;height:420vh;background:radial-gradient(ellipse 70% 60% at 68% 45%,#fff 0%,var(--bg,#f7f4ee) 70%);}
.svc3d__sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;}
.svc3d__canvas{position:absolute;inset:0;width:100%;height:100%;display:block;}
.svc3d__copy{position:absolute;z-index:2;top:50%;transform:translateY(-50%);
  left:max(1.5rem,calc((100vw - 1200px)/2 + 1.5rem));width:min(420px,40vw);color:var(--navy,#1c2b4a);}
.svc3d__eyebrow{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold,#b8923a);font-weight:600;margin-bottom:.8rem;}
.svc3d__title{font-family:var(--font-h,Georgia,serif);font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.15;font-weight:700;margin-bottom:1.6rem;}
.svc3d__steps{position:relative;min-height:170px;}
.svc3d__step{position:absolute;inset:0;opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease;pointer-events:none;}
.svc3d__step.is-active{opacity:1;transform:none;pointer-events:auto;}
.svc3d__num{display:inline-block;font-family:var(--font-h,Georgia,serif);font-size:.85rem;color:var(--gold,#b8923a);border:1px solid var(--gold,#b8923a);border-radius:999px;padding:.15rem .7rem;margin-bottom:.7rem;}
.svc3d__step h3{font-family:var(--font-h,Georgia,serif);font-size:1.35rem;margin-bottom:.5rem;}
.svc3d__step p{color:var(--muted,#5d6475);font-size:.98rem;line-height:1.7;}
.svc3d__dots{display:flex;gap:.45rem;margin-top:1.4rem;}
.svc3d__dot{width:28px;height:3px;border-radius:3px;background:var(--border,#ddd6c8);transition:background .4s;}
.svc3d__dot.is-active{background:var(--gold,#b8923a);}
.svc3d__shuffle{margin-top:1.3rem;display:inline-flex;align-items:center;gap:.5rem;background:transparent;border:1px solid var(--border,#ddd6c8);
  color:var(--navy,#1c2b4a);border-radius:999px;padding:.5rem 1rem;font-size:.85rem;cursor:pointer;transition:border-color .3s,background .3s;}
.svc3d__shuffle:hover{border-color:var(--gold,#b8923a);background:rgba(255,255,255,.6);}
.svc3d__hint{position:absolute;left:50%;bottom:1.4rem;transform:translateX(-50%);z-index:2;font-size:.72rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted,#5d6475);display:flex;flex-direction:column;align-items:center;gap:.4rem;pointer-events:none;}
.svc3d__hint::after{content:"";width:1px;height:34px;background:linear-gradient(var(--gold,#b8923a),transparent);animation:svc3dHint 1.6s ease-in-out infinite;}
@keyframes svc3dHint{0%,100%{transform:scaleY(.4);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}}

@media (max-width:820px){
  .svc3d{height:360vh;}
  .svc3d__copy{left:1rem;right:1rem;width:auto;top:auto;bottom:1rem;transform:none;background:rgba(255,255,255,.88);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 1.1rem 1.1rem;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.08);}
  .svc3d__title{font-size:1.25rem;margin-bottom:.8rem;}
  .svc3d__steps{min-height:136px;}
  .svc3d__step h3{font-size:1.08rem;}
  .svc3d__step p{font-size:.88rem;line-height:1.55;}
  .svc3d__dots{margin-top:.6rem;}
  .svc3d__shuffle{margin-top:.7rem;padding:.4rem .85rem;font-size:.8rem;}
  .svc3d__hint{display:none;}
}
/* Carica la tua foto */
.svc3d__actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.3rem;}
.svc3d__actions .svc3d__shuffle{margin-top:0;}
.svc3d__upload{display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--gold,#b8923a);background:var(--gold,#b8923a);color:#fff;
  border-radius:999px;padding:.5rem 1.1rem;font-size:.85rem;font-weight:600;cursor:pointer;transition:filter .3s,transform .3s;}
.svc3d__upload:hover{filter:brightness(1.08);transform:translateY(-1px);}
.svc3d__status{min-height:1.1em;margin-top:.55rem;font-size:.82rem;color:var(--gold,#b8923a);font-weight:600;}
.svc3d__note{font-size:.72rem;color:var(--muted,#5d6475);opacity:.8;margin-top:.15rem;}
@media (max-width:820px){
  .svc3d__actions{margin-top:.7rem;gap:.45rem;}
  .svc3d__upload{padding:.42rem .9rem;font-size:.8rem;}
  .svc3d__status{margin-top:.35rem;font-size:.76rem;}
  .svc3d__note{font-size:.66rem;}
}
/* Fallback senza WebGL: testo statico */
.svc3d--static{height:auto;}
.svc3d--static .svc3d__sticky{position:relative;height:auto;padding:4rem 1.5rem;}
.svc3d--static .svc3d__canvas,.svc3d--static .svc3d__hint,.svc3d--static .svc3d__shuffle,.svc3d--static .svc3d__actions,.svc3d--static .svc3d__status,.svc3d--static .svc3d__note,.svc3d--static .svc3d__dots{display:none;}
.svc3d--static .svc3d__copy{position:static;transform:none;width:auto;max-width:640px;margin:0 auto;background:none;box-shadow:none;}
.svc3d--static .svc3d__steps{min-height:0;}
.svc3d--static .svc3d__step{position:static;opacity:1;transform:none;margin-bottom:1.4rem;}