body.album{height:100vh;height:100dvh;overflow:hidden;background:radial-gradient(ellipse at 50% 40%,#3a4430 0%,var(--scuro) 70%);color:var(--crema);display:flex;flex-direction:column}
.barra{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.5rem .8rem;flex:0 0 auto;z-index:50}
.barra .mezzo{display:flex;align-items:center;gap:.6rem}
.barra .dx{display:flex;gap:.4rem}
.barra .btn{padding:.4em .9em;font-size:.9rem}
#num{min-width:9.5rem;text-align:center;font-size:.9rem;color:var(--ocra)}
#area{flex:1;position:relative;min-height:0;overflow:hidden}
#stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;user-select:none;-webkit-user-select:none;touch-action:pan-y}

/* --- album a doppia pagina --- */
.shift{position:relative;transition:transform .9s cubic-bezier(.45,.05,.25,1)}
.book{position:relative;width:calc(var(--W)*2);height:var(--H);perspective:2600px}
.leaf{position:absolute;left:50%;top:0;width:var(--W);height:var(--H);transform-origin:left center;transform-style:preserve-3d;
  transition:transform .9s cubic-bezier(.45,.05,.25,1)}
.leaf.flip{transform:rotateY(-180deg)}
.face{position:absolute;inset:0;overflow:hidden;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--scuro)}
.face.back{transform:rotateY(180deg)}
.face img{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none}
.face.vuota{background:var(--scuro)}
.face::after{content:"";position:absolute;inset:0;pointer-events:none}
.face.front::after{background:linear-gradient(to right,rgba(0,0,0,.34),rgba(0,0,0,0) 7%,rgba(0,0,0,0) 94%,rgba(0,0,0,.12))}
.face.back::after{background:linear-gradient(to left,rgba(0,0,0,.34),rgba(0,0,0,0) 7%,rgba(0,0,0,0) 94%,rgba(0,0,0,.12))}
.book::before{content:"";position:absolute;left:2%;right:2%;bottom:-3%;height:6%;background:radial-gradient(ellipse at center,rgba(0,0,0,.5),transparent 70%);filter:blur(6px);pointer-events:none}

/* --- vista a pagina singola (telefono) --- */
.singola{position:relative;width:var(--W);height:var(--H)}
.sp{position:absolute;inset:0;transition:transform .5s cubic-bezier(.45,.05,.25,1),opacity .5s;box-shadow:0 8px 28px rgba(0,0,0,.5);opacity:0}
.sp.att{opacity:1;transform:none}
.sp.prima{transform:translateX(-30%);}
.sp.dopo{transform:translateX(30%);}
.sp.att{z-index:2}

/* --- pagina indice (HTML, generata dai dati) --- */
.ix{position:absolute;inset:0;container-type:size;background:var(--scuro);color:var(--crema);font-family:var(--serif);overflow:hidden}
.ixi{position:absolute;inset:0;padding:7cqw 9cqw 4cqw;display:flex;flex-direction:column}
.ix h2{margin:0;text-align:center;font-weight:700;font-size:7.4cqw;line-height:1.1;letter-spacing:.01em}
.ix .sotto{text-align:center;font-style:italic;color:var(--ocra);font-size:2.5cqw;margin:1.2cqw 0 0}
.ix .fil{display:flex;align-items:center;gap:2cqw;margin:2.6cqw 6cqw 3.2cqw;color:var(--terracotta)}
.ix .fil::before,.ix .fil::after{content:"";flex:1;height:.3cqw;background:currentColor;opacity:.9}
.ix .fil i{width:1.6cqw;height:1.6cqw;background:currentColor;transform:rotate(45deg)}
.ix .cat{display:flex;align-items:baseline;justify-content:space-between;height:6.2cqw;padding-top:2cqw;font-size:3.3cqw;font-weight:700;color:var(--ocra);letter-spacing:.04em;text-transform:uppercase}
.ix .cat span{font-size:2.3cqw;color:var(--terracotta-chiara);letter-spacing:.1em}
.ix .nessuna{height:4cqw;font-size:2.3cqw;font-style:italic;color:rgba(255,248,235,.45)}
.ix a.r{display:flex;align-items:baseline;gap:1.6cqw;height:4.4cqw;font-size:2.75cqw;text-decoration:none;color:var(--crema);cursor:pointer}
.ix a.r .c{color:var(--terracotta-chiara);font-size:2.2cqw;letter-spacing:.06em;flex:0 0 11.5cqw;font-variant-numeric:tabular-nums}
.ix a.r .t{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.ix a.r .a{font-style:italic;color:var(--ocra);font-size:2.3cqw;white-space:nowrap}
.ix a.r .p{flex:1 1 2cqw;min-width:2cqw;border-bottom:.3cqw dotted rgba(255,248,235,.28);transform:translateY(-.5cqw)}
.ix a.r .n{font-variant-numeric:tabular-nums;color:rgba(255,248,235,.8);font-size:2.4cqw}
.ix a.r:hover .t{color:var(--ocra)}
.ix a.r:hover{background:rgba(255,248,235,.06)}
.ix .piede{margin-top:auto;text-align:center;font-size:2cqw;font-style:italic;color:rgba(255,248,235,.45)}

/* --- lente di lettura --- */
#lente{position:fixed;inset:0;z-index:100;background:rgba(15,19,10,.94);display:flex;align-items:flex-start;justify-content:center;overflow:auto}
#lente[hidden]{display:none}
#lenteImg{display:flex;gap:1rem;justify-content:center;align-items:flex-start;padding:1rem;min-height:100%;width:100%}
#lenteImg img{max-height:calc(100dvh - 2rem);max-width:100%;width:auto;height:auto;object-fit:contain;cursor:zoom-in;background:var(--scuro)}
#lenteImg.pieno{display:block;text-align:center;width:max-content;min-width:100%}
#lenteImg.pieno img{max-height:none;max-width:none;width:min(1500px,200vw);cursor:zoom-out}
#chiudi{position:fixed;top:.6rem;right:.9rem;z-index:101;font-size:2rem;line-height:1;background:rgba(35,41,24,.85);color:var(--crema);border:1px solid rgba(255,248,235,.4);border-radius:50%;width:2.6rem;height:2.6rem;cursor:pointer}
@media (max-width:640px){.barra .x{display:none}.barra .dx #schermo{display:none}#num{min-width:6.5rem}}
@media (prefers-reduced-motion:reduce){.leaf,.shift,.sp{transition-duration:.01s}}
@media (max-width:520px){.barra{padding:.4rem .4rem;gap:.25rem}.barra .btn{padding:.35em .65em;font-size:.8rem}.barra .mezzo{gap:.2rem}#num{min-width:4.8rem;font-size:.78rem}.barra .dx{gap:.25rem}}
body.video .barra{display:none}