html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  background: var(--notte);
  color: var(--avorio);
  font: 400 1.0625rem/1.7 var(--f-testo);
}
a { color: inherit; }

.contenitore { width: min(1200px, 100% - 3rem); margin-inline: auto; }
.contenitore.stretto { width: min(860px, 100% - 3rem); }

.occhiello { color: var(--oro); margin: 0 0 1.4rem; display: flex; align-items: center; gap: .9rem; }
.occhiello::before { content: ""; width: 2.2rem; height: 1px; background: currentColor; opacity: .7; }

.titolo-sezione {
  font: 500 clamp(2.4rem, 4.6vw, 4.1rem)/1.02 var(--f-display);
  letter-spacing: -.012em;
  margin: 0 0 1.8rem;
}
.titolo-sezione em { font-style: italic; color: var(--oro); font-weight: 500; }

/* ------------------------------------------------------------ rivelazioni */
.js .rivela { opacity: 0; transform: translateY(28px); transition: opacity 1.1s var(--curva), transform 1.1s var(--curva); transition-delay: var(--ritardo, 0s); }
.js .rivela.visibile { opacity: 1; transform: none; }

/* ------------------------------------------------------------ barra */
.barra {
  position: fixed; inset: 0 0 auto; z-index: 50;
  display: flex; align-items: center; gap: 2rem;
  height: 4.5rem; padding: 0 clamp(1.25rem, 3vw, 2.5rem);
  transition: background-color .4s, border-color .4s, height .4s var(--curva);
  border-bottom: 1px solid transparent;
}
.barra.solida {
  background: rgba(9, 13, 12, .78);
  -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4);
  border-bottom-color: var(--linea-scura);
  height: 4rem;
}
.barra-marchio {
  display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--avorio);
  font: 500 .78rem var(--f-epigrafe); letter-spacing: .2em; text-transform: uppercase;
}
.barra-marchio svg { width: 1.7rem; height: 1.7rem; fill: none; stroke: var(--oro); stroke-width: 1.2; transition: transform 1.2s var(--curva); }
.barra-marchio:hover svg { transform: rotate(90deg); }
.barra-voci { display: flex; gap: 2rem; margin-left: auto; }
.barra-voci a {
  font: 500 .86rem var(--f-ui); color: rgba(246, 241, 231, .72); text-decoration: none; letter-spacing: .01em;
  position: relative; padding: .4rem 0; transition: color .25s;
}
.barra-voci a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--oro); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--curva); }
.barra-voci a:hover { color: var(--avorio); }
.barra-voci a:hover::after { transform: scaleX(1); }
.barra-cta { min-height: 2.5rem; padding: 0 1.2rem; font-size: .85rem; }
.barra-menu {
  display: none; place-content: center; gap: 6px;
  width: 2.6rem; height: 2.6rem; margin-left: -1rem; padding: 0;
  border: 1px solid rgba(246, 241, 231, .22); border-radius: 50%; background: transparent;
  transition: border-color .25s;
}
.barra-menu:hover { border-color: var(--oro); }
.barra-menu span { display: block; width: 1.05rem; height: 1.5px; background: var(--avorio); border-radius: 2px; transition: transform .4s var(--curva); }
.barra.menu-aperto .barra-menu span:first-child { transform: translateY(3.75px) rotate(45deg); }
.barra.menu-aperto .barra-menu span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
.barra.menu-aperto { background: transparent; border-bottom-color: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }

/* ------------------------------------------------------------ apertura */
.eroe {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: 7rem 0 5rem;
}
.eroe-sfondo {
  position: absolute; inset: -4%; z-index: -2;
  background:
    radial-gradient(ellipse 60% 70% at 72% 50%, rgba(9, 13, 12, .15), rgba(9, 13, 12, .92) 70%),
    linear-gradient(90deg, rgba(9, 13, 12, .97) 0%, rgba(9, 13, 12, .86) 38%, rgba(9, 13, 12, .45) 100%),
    url(img/bronzo-sfondo.jpg) center 60% / cover no-repeat;
  animation: respiro 26s ease-in-out infinite alternate;
}
.eroe::after {
  content: ""; position: absolute; inset: auto 0 0; height: 30%; z-index: -1;
  background: linear-gradient(to bottom, transparent, var(--notte));
}
@keyframes respiro { from { transform: scale(1); } to { transform: scale(1.06) translateX(-1%); } }

.eroe-quadrante {
  position: absolute; z-index: -1; pointer-events: none;
  width: min(1100px, 120vw); aspect-ratio: 1;
  right: max(-260px, -18vw); top: 50%; transform: translateY(-50%);
  opacity: .5;
  -webkit-mask-image: radial-gradient(circle, #000 35%, transparent 70%); mask-image: radial-gradient(circle, #000 35%, transparent 70%);
}
.eroe-quadrante svg { width: 100%; height: 100%; overflow: visible; }
.eroe-quadrante .ruota { transform-origin: 0 0; animation: gira 240s linear infinite; }
.eroe-quadrante .ruota.inversa { animation-duration: 160s; animation-direction: reverse; }
.eroe-quadrante .ruota.lenta { animation-duration: 420s; }
@keyframes gira { to { transform: rotate(360deg); } }
.eroe-quadrante circle, .eroe-quadrante line, .eroe-quadrante path { fill: none; stroke: var(--oro); stroke-width: 1; vector-effect: non-scaling-stroke; }
.eroe-quadrante .tacca { stroke-opacity: .45; }
.eroe-quadrante .tacca.lunga { stroke-opacity: .8; }
.eroe-quadrante text { fill: var(--oro); font: 500 22px var(--f-epigrafe); letter-spacing: .32em; opacity: .75; }

.eroe-griglia {
  width: min(1240px, 100% - 3rem); margin-inline: auto;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(2rem, 5vw, 5rem); align-items: center;
}
.eroe-occhiello { color: var(--oro); margin: 0 0 1.8rem; }
.eroe-occhiello span { opacity: .5; margin: 0 .4em; }
.eroe h1 {
  margin: 0; font: 500 clamp(3rem, 6.4vw, 6.3rem)/.93 var(--f-display); letter-spacing: -.02em;
}
.eroe h1 .riga { display: block; }
.eroe h1 .riga:last-child {
  font-style: italic;
  background: linear-gradient(100deg, #f6d798 0%, #e2b25a 35%, #b9853a 70%, #e9c27a 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-bottom: .08em;
}
.eroe-sottotitolo {
  display: flex; align-items: center; gap: 1rem; margin: 1.7rem 0 0;
  font: 500 .8rem var(--f-epigrafe); letter-spacing: .38em; text-transform: uppercase; color: var(--verderame-chiaro);
}
.eroe-sottotitolo::after { content: ""; height: 1px; width: 4rem; background: linear-gradient(90deg, var(--verderame-chiaro), transparent); }
.eroe-lancio { max-width: 33rem; margin: 2rem 0 2.4rem; font-size: 1.14rem; line-height: 1.65; color: rgba(246, 241, 231, .78); }
.eroe-azioni { display: flex; flex-wrap: wrap; gap: .9rem; }
.eroe-dati { display: flex; gap: 2.6rem; margin: 3rem 0 0; padding-top: 1.6rem; border-top: 1px solid var(--linea-scura); max-width: 30rem; }
.eroe-dati div { display: flex; flex-direction: column-reverse; }
.eroe-dati dt { font: 500 .7rem var(--f-ui); letter-spacing: .14em; text-transform: uppercase; color: rgba(246, 241, 231, .5); }
.eroe-dati dd { margin: 0; font: 500 1.9rem/1.1 var(--f-display); color: var(--avorio); }

.js .eroe .rivela:nth-child(2) { --ritardo: .08s; }
.js .eroe .rivela:nth-child(3) { --ritardo: .16s; }
.js .eroe .rivela:nth-child(4) { --ritardo: .24s; }
.js .eroe .rivela:nth-child(5) { --ritardo: .32s; }
.js .eroe .rivela:nth-child(6) { --ritardo: .4s; }
.js .eroe-libro.rivela { --ritardo: .2s; transform: translateY(40px) scale(.96); }
.js .eroe-libro.rivela.visibile { transform: none; }

/* ------------------------------------------------------------ libro 3D */
.eroe-libro { display: flex; justify-content: center; }
.libro {
  --s: 26px;
  --rx: 4deg; --ry: 24deg;
  position: relative; width: min(360px, 72vw); aspect-ratio: 760 / 1049;
  perspective: 1900px;
}
.libro-corpo {
  position: absolute; inset: 0; transform-style: preserve-3d;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform 1.2s var(--curva);
  animation: galleggia 7s ease-in-out infinite;
}
@keyframes galleggia { 50% { translate: 0 -10px; } }
.libro-fronte, .libro-retro, .libro-dorso, .libro-pagine { position: absolute; backface-visibility: hidden; }
.libro-fronte {
  inset: 0; width: 100%; height: 100%; object-fit: cover;
  transform: translateZ(calc(var(--s) / 2));
  border-radius: 1px 4px 4px 1px;
  box-shadow: inset 4px 0 10px rgba(0, 0, 0, .3);
}
.libro-corpo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  transform: translateZ(calc(var(--s) / 2 + .5px));
  border-radius: 1px 4px 4px 1px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.45) 0, rgba(255,255,255,.18) 1.2%, rgba(0,0,0,.18) 2.6%, transparent 5%),
    linear-gradient(115deg, rgba(255, 255, 255, .16) 0%, transparent 32%, transparent 70%, rgba(255, 255, 255, .06) 100%);
}
.libro-retro {
  inset: 0; background: #0c1110; border-radius: 4px 1px 1px 4px;
  transform: rotateY(180deg) translateZ(calc(var(--s) / 2));
}
.libro-dorso {
  top: 0; left: 0; width: var(--s); height: 100%;
  transform: translateX(calc(var(--s) / -2)) rotateY(-90deg);
  background: linear-gradient(90deg, #050807, #18201d 45%, #0a0f0d);
  display: flex; align-items: center; justify-content: center;
}
.libro-dorso::before {
  content: "Michele Laurelli    ·    Le leggi fondamentali dell’intelligenza artificiale";
  writing-mode: vertical-rl; white-space: pre;
  font: 600 7.5px var(--f-epigrafe); letter-spacing: .18em; text-transform: uppercase; color: var(--oro);
}
.libro-pagine {
  top: 1.2%; right: 0; width: var(--s); height: 97.6%;
  transform: translateX(calc(var(--s) / 2)) rotateY(90deg);
  background: repeating-linear-gradient(90deg, #f1ebdc 0 1px, #d6ccb6 1px 2px);
}
.libro-ombra {
  position: absolute; left: 6%; right: -4%; bottom: -9%; height: 12%;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, .75), transparent 70%);
  filter: blur(10px); z-index: -1;
  animation: ombra 7s ease-in-out infinite;
}
@keyframes ombra { 50% { transform: scale(.92); opacity: .75; } }

.eroe-scorri {
  position: absolute; left: 50%; bottom: 2rem; translate: -50% 0;
  width: 1.6rem; height: 2.6rem; border: 1px solid rgba(246, 241, 231, .35); border-radius: 1rem;
}
.eroe-scorri span { position: absolute; left: 50%; top: .5rem; width: 2px; height: .5rem; margin-left: -1px; background: var(--oro); border-radius: 2px; animation: scorri 2.2s var(--curva) infinite; }
@keyframes scorri { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 80%, 100% { opacity: 0; transform: translateY(.9rem); } }

/* ------------------------------------------------------------ anticitera */
.anticitera { padding: clamp(5rem, 10vw, 9rem) 0 0; position: relative; }
.anticitera-griglia { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: clamp(3rem, 7vw, 7rem); align-items: start; }
.anticitera-racconto p { color: rgba(246, 241, 231, .8); font-size: 1.12rem; max-width: 38rem; }
.anticitera-racconto strong { color: var(--avorio); font-weight: 600; }
.capolettera::first-letter {
  float: left; font: 500 5.4rem/.8 var(--f-display); color: var(--oro);
  margin: .38rem .7rem 0 -.2rem;
}

.cronologia { list-style: none; margin: 4.4rem 0 0; padding: 0 0 0 1.8rem; border-left: 1px solid var(--linea-scura); }
.cronologia li { position: relative; padding: 0 0 2.2rem; }
.cronologia li:last-child { padding-bottom: 0; }
.cronologia li::before {
  content: ""; position: absolute; left: calc(-1.8rem - 4.5px); top: 1.15rem; width: 8px; height: 8px; border-radius: 50%;
  background: var(--notte); border: 1px solid var(--oro);
}
.cronologia li:last-child::before { background: var(--oro); box-shadow: 0 0 0 5px rgba(226, 178, 90, .15); }
.cronologia-cifra { display: block; font: 500 2.9rem/1 var(--f-display); color: var(--oro); letter-spacing: -.01em; }
.cronologia-testo { display: block; margin-top: .45rem; font: 400 .93rem/1.55 var(--f-ui); color: rgba(246, 241, 231, .62); max-width: 19rem; }
.cronologia-testo em { font-family: var(--f-testo); color: var(--avorio); }

.fascia-bronzo {
  margin: clamp(4rem, 8vw, 7rem) 0; height: clamp(16rem, 42vw, 30rem); overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
}
.fascia-immagine {
  position: absolute; inset: -18% 0; background: url(img/ingranaggio.jpg) center / cover no-repeat;
  will-change: transform;
}
.fascia-bronzo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(9,13,12,.65), transparent 30%, transparent 70%, rgba(9,13,12,.65)); }

.citazione-grande { margin: 0 0 3rem; padding: 0; }
.citazione-grande p { margin: 0; font: 400 clamp(1.7rem, 3vw, 2.5rem)/1.28 var(--f-display); color: var(--avorio); }
.citazione-grande em { color: var(--oro-chiaro); }
.due-colonne { display: grid; grid-template-columns: 1fr 1fr; gap: 2.6rem; padding-bottom: clamp(5rem, 10vw, 8rem); }
.due-colonne p { margin: 0; color: rgba(246, 241, 231, .72); font-size: 1.02rem; }
.due-colonne strong { color: var(--oro-chiaro); font-weight: 600; }

/* ------------------------------------------------------------ leggi */
.leggi {
  background: var(--avorio); color: var(--inchiostro);
  padding: clamp(5rem, 10vw, 9rem) 0;
  position: relative; overflow: hidden;
}
.leggi::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(25, 29, 27, .07) 1px, transparent 1px); background-size: 22px 22px;
}
.leggi .occhiello { color: var(--rame); }
.leggi .titolo-sezione em { color: var(--rame); }
.leggi-testa { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 0 4rem; align-items: end; margin-bottom: 4rem; }
.leggi-testa .occhiello { grid-column: 1 / -1; }
.leggi-intro { margin: 0 0 1.9rem; color: var(--inchiostro-2); font-size: 1.12rem; max-width: 30rem; }

.leggi-corpo { position: relative; display: grid; grid-template-columns: 17rem minmax(0, 1fr); gap: 3rem; align-items: stretch; }
.leggi-schede { display: flex; flex-direction: column; border-top: 1px solid var(--linea-chiara); }
.legge-tab {
  display: flex; align-items: baseline; gap: 1.2rem; text-align: left;
  padding: 1.15rem .4rem 1.15rem 1rem; border: 0; border-bottom: 1px solid var(--linea-chiara); background: none;
  position: relative; transition: background-color .3s, color .3s;
  color: var(--inchiostro-2);
}
.legge-tab::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--rame); transform: scaleY(0); transition: transform .5s var(--curva); }
.legge-tab:hover { background: rgba(185, 133, 58, .06); color: var(--inchiostro); }
.legge-tab[aria-selected="true"] { color: var(--inchiostro); background: rgba(185, 133, 58, .09); }
.legge-tab[aria-selected="true"]::before { transform: scaleY(1); }
.legge-num { font: 500 1.5rem/1 var(--f-epigrafe); width: 2.6rem; color: var(--bronzo); }
.legge-tab[aria-selected="true"] .legge-num { color: var(--rame); }
.legge-nome { font: 500 1.02rem var(--f-ui); }

.leggi-pannelli { position: relative; min-height: 26rem; }
.legge-pannello {
  position: relative; height: 100%; overflow: hidden;
  background: #fffdf8; border: 1px solid var(--linea-chiara); border-radius: 4px;
  padding: clamp(2rem, 4vw, 3.4rem);
  box-shadow: 0 40px 80px -50px rgba(60, 40, 10, .35);
  animation: entra .7s var(--curva);
}
@keyframes entra { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.legge-pannello::after {
  content: attr(data-num); position: absolute; right: -.04em; bottom: -.28em; pointer-events: none;
  font: 500 clamp(10rem, 20vw, 17rem)/1 var(--f-epigrafe); color: rgba(185, 133, 58, .08);
}
.legge-pannello .epigrafe { color: var(--rame); margin: 0; }
.legge-pannello h3 { font: 500 clamp(2rem, 3.4vw, 2.9rem)/1.05 var(--f-display); margin: .7rem 0 1.6rem; }
.legge-pannello blockquote {
  position: relative; z-index: 1; margin: 0 0 2rem; padding: 0 0 0 1.4rem; border-left: 2px solid var(--oro);
  font: italic 400 clamp(1.3rem, 2vw, 1.62rem)/1.42 var(--f-display); color: var(--inchiostro); max-width: 40rem;
}
.legge-scena { position: relative; z-index: 1; margin: 0 0 1.8rem; max-width: 36rem; color: var(--inchiostro-2); font-size: 1rem; }
.legge-scena span { display: block; font: 600 .7rem var(--f-ui); letter-spacing: .16em; text-transform: uppercase; color: var(--verderame); margin-bottom: .3rem; }
.legge-link {
  position: relative; z-index: 1; display: inline-flex; gap: .5rem; align-items: center;
  font: 600 .9rem var(--f-ui); text-decoration: none; color: var(--rame);
  border-bottom: 1px solid currentColor; padding-bottom: .15rem;
}
.legge-link span { transition: transform .35s var(--curva); }
.legge-link:hover span { transform: translateX(4px); }
.invito-altri { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin: 0; }

/* ------------------------------------------------------------ metodo */
.metodo { padding: clamp(5rem, 10vw, 9rem) 0; background: radial-gradient(ellipse 80% 50% at 50% 0%, #15211d, var(--notte) 70%); }
.metodo-testa { max-width: 46rem; margin-bottom: 4rem; }
.metodo-testa > p:last-child { color: rgba(246, 241, 231, .72); font-size: 1.12rem; }

.scene { list-style: none; margin: 0 0 5rem; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--linea-scura); border: 1px solid var(--linea-scura); }
.scena { background: var(--notte); padding: 2.2rem 1.8rem 2.4rem; transition: background-color .4s; }
.scena:hover { background: #111a17; }
.scena svg { width: 3.4rem; height: 3.4rem; fill: none; stroke: var(--oro); stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 1.8rem; transition: transform .6s var(--curva); }
.scena:hover svg { transform: translateY(-4px) rotate(-3deg); }
.scena svg .accento { stroke: var(--verderame-chiaro); stroke-width: 1.8; }
.scena h3 { font: 500 1.55rem/1.15 var(--f-display); margin: 0 0 .6rem; }
.scena p { margin: 0; font: 400 .92rem/1.6 var(--f-ui); color: rgba(246, 241, 231, .6); }
.scena:nth-child(2) { --ritardo: .08s; }
.scena:nth-child(3) { --ritardo: .16s; }
.scena:nth-child(4) { --ritardo: .24s; }

.struttura { margin-bottom: 5rem; }
.struttura-titolo { color: var(--oro); text-align: center; margin: 0 0 2.2rem; }
.struttura-passi { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); position: relative; }
.struttura-passi::before { content: ""; position: absolute; top: 1.1rem; left: 8%; right: 8%; height: 1px; background: linear-gradient(90deg, transparent, var(--oro), transparent); opacity: .5; }
.struttura-passi li { text-align: center; font: 500 .92rem/1.35 var(--f-ui); color: rgba(246, 241, 231, .82); padding: 0 .6rem; position: relative; }
.struttura-passi span {
  display: grid; place-items: center; width: 2.3rem; height: 2.3rem; margin: 0 auto 1rem; border-radius: 50%;
  background: var(--notte); border: 1px solid var(--oro); color: var(--oro); font: 500 .74rem var(--f-epigrafe); letter-spacing: .06em;
}
.feynman { margin: 0 auto; max-width: 50rem; text-align: center; }
.feynman p { margin: 0; font: italic 400 clamp(1.45rem, 2.4vw, 2rem)/1.35 var(--f-display); color: var(--avorio); }
.feynman em { font-style: normal; color: var(--oro-chiaro); }

/* ------------------------------------------------------------ prefazione */
.prefazione {
  padding: clamp(5rem, 9vw, 8rem) 0; text-align: center; position: relative; overflow: hidden;
  background: linear-gradient(160deg, #0f2a26 0%, #0b1b18 55%, #0a1311 100%);
  border-block: 1px solid rgba(143, 211, 198, .14);
}
.prefazione::before {
  content: ""; position: absolute; inset: 0; opacity: .14; mix-blend-mode: screen;
  background: url(img/bronzo-sfondo.jpg) center / cover;
}
.virgolette { position: relative; width: 3rem; fill: var(--oro); margin: 0 auto 2rem; }
.prefazione blockquote { position: relative; margin: 0; }
.prefazione blockquote p { margin: 0 0 2rem; font: 500 clamp(2rem, 4.4vw, 3.6rem)/1.12 var(--f-display); letter-spacing: -.01em; }
.prefazione footer { font: 400 1rem var(--f-testo); font-style: italic; color: rgba(246, 241, 231, .65); }
.prefazione footer .epigrafe { display: block; font-style: normal; color: var(--verderame-chiaro); margin-bottom: .4rem; }

/* ------------------------------------------------------------ lettori */
.lettori { background: var(--carta); color: var(--inchiostro); padding: clamp(5rem, 10vw, 9rem) 0; }
.lettori .occhiello { color: var(--rame); }
.lettori .titolo-sezione { max-width: 62rem; }
.lettori .titolo-sezione em { color: var(--rame); }
.lettori-elenco { list-style: none; padding: 0; margin: 3.5rem 0 4.5rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.4rem; }
.lettori-elenco li { border-top: 1px solid rgba(25, 29, 27, .25); padding-top: 1.4rem; }
.lettori-elenco li:nth-child(2) { --ritardo: .08s; }
.lettori-elenco li:nth-child(3) { --ritardo: .16s; }
.lettori-elenco li:nth-child(4) { --ritardo: .24s; }
.lettori-num { font: italic 500 1.4rem var(--f-display); color: var(--rame); }
.lettori-elenco h3 { font: 500 1.6rem/1.15 var(--f-display); margin: .5rem 0 .7rem; }
.lettori-elenco p { margin: 0; font: 400 .95rem/1.6 var(--f-ui); color: var(--inchiostro-2); }
.lettori-motto { text-align: center; margin: 0; font: italic 400 clamp(1.5rem, 2.8vw, 2.3rem)/1.3 var(--f-display); color: var(--inchiostro); }

/* ------------------------------------------------------------ autore */
.autore { padding: clamp(5rem, 10vw, 9rem) 0; background: var(--notte-2); }
.autore-griglia { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(3rem, 7vw, 7rem); align-items: center; }
.autore-ritratto { position: relative; max-width: 30rem; width: 100%; margin: 0 auto; }
.autore-ritratto svg { display: block; width: 100%; overflow: visible; }
.autore-ritratto svg * { stroke: var(--oro); stroke-width: .6; fill: none; }
.autore-ritratto .corona { fill: rgba(201, 169, 106, .07); stroke-width: .7; }
.autore-ritratto .corpo { fill: rgba(201, 169, 106, .1); stroke-width: .7; }
.autore-ritratto .graduazione { stroke-width: 3.2; stroke-dasharray: .45 3.5506; stroke-opacity: .55; }
.autore-ritratto .filo { stroke-opacity: .5; }
.autore-ritratto .raggio { stroke-width: 2.4; stroke-opacity: .7; stroke-linecap: round; }
.autore-ritratto .mozzo { fill: rgba(201, 169, 106, .15); }
.autore-ritratto .perno { fill: var(--oro); stroke: none; }
.autore-ritratto .ruota-maestra, .autore-ritratto .ruota-b, .autore-ritratto .ruota-c { transform-origin: 0 0; animation: gira 120s linear infinite; }
.autore-ritratto .ruota-b { animation-duration: 37.5s; animation-direction: reverse; }
.autore-ritratto .ruota-c { animation-duration: 26.25s; animation-direction: reverse; }
.autore-ritratto img { position: absolute; inset: 25%; width: 50%; height: 50%; border-radius: 50%; object-fit: cover; object-position: 50% 30%; box-shadow: 0 1.6rem 3.5rem rgba(0, 0, 0, .5); }
@media (prefers-reduced-motion: reduce) { .autore-ritratto svg g { animation: none; } }
.autore-lancio { font: 400 clamp(1.4rem, 2.2vw, 1.8rem)/1.35 var(--f-display); color: var(--avorio); margin: 0 0 1.4rem; }
.autore-testo > p { color: rgba(246, 241, 231, .72); }
.autore-fatti { list-style: none; margin: 2.4rem 0; padding: 1.6rem 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; border-block: 1px solid var(--linea-scura); }
.autore-fatti strong { display: block; font: 500 1.5rem/1.1 var(--f-display); color: var(--oro); }
.autore-fatti span { display: block; margin-top: .35rem; font: 400 .82rem/1.4 var(--f-ui); color: rgba(246, 241, 231, .55); }
.autore-opere .epigrafe { color: rgba(246, 241, 231, .5); margin: 0 0 .8rem; }
.autore-opere ul { list-style: none; margin: 0; padding: 0; }
.autore-opere li { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px dashed rgba(246, 241, 231, .12); color: rgba(246, 241, 231, .82); }
.autore-opere li span { font: 400 .82rem var(--f-ui); color: rgba(246, 241, 231, .45); }

/* ------------------------------------------------------------ invito note */
.invito-note { background: var(--avorio); color: var(--inchiostro); padding: clamp(5rem, 10vw, 9rem) 0; overflow: hidden; }
.invito-note .occhiello { color: var(--verderame); }
.invito-note .titolo-sezione em { color: var(--verderame); }
.invito-griglia { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(3rem, 6vw, 6rem); align-items: center; }
.invito-testo > p { color: var(--inchiostro-2); font-size: 1.1rem; max-width: 34rem; }
.invito-pagina { margin: 2.4rem 0 1.6rem; }
.invito-pagina label { display: block; font: 600 .74rem var(--f-ui); letter-spacing: .14em; text-transform: uppercase; color: var(--inchiostro-2); margin-bottom: .8rem; }
.invito-campo {
  display: flex; align-items: center; gap: .6rem; max-width: 27rem;
  background: #fff; border: 1px solid var(--linea-chiara); border-radius: 999px; padding: .4rem .4rem .4rem 1.4rem;
  box-shadow: 0 20px 40px -28px rgba(30, 50, 45, .45);
  transition: border-color .3s, box-shadow .3s;
}
.invito-campo:focus-within { border-color: var(--verderame); box-shadow: 0 0 0 4px rgba(63, 156, 146, .15); }
.invito-campo > span { font: italic 400 1.3rem var(--f-display); color: var(--inchiostro-2); }
.invito-campo input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; font: 500 1.7rem var(--f-display); padding: 0; }
.invito-campo input::placeholder { color: rgba(25, 29, 27, .25); }
.invito-campo .bottone { --bg: var(--inchiostro); color: var(--avorio); }
.invito-campo .bottone:hover { box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .5); }
.invito-testo .legge-link { color: var(--verderame); }

.invito-anteprima { display: flex; justify-content: center; perspective: 1600px; }
.anteprima-telefono {
  width: 19rem; border-radius: 2.8rem; padding: .7rem; background: #0b0f0e;
  box-shadow: 0 0 0 1px rgba(0,0,0,.5), 0 60px 90px -40px rgba(20, 40, 35, .55), inset 0 0 0 2px #2a302d;
  transform: rotateY(-14deg) rotateX(6deg) rotateZ(1deg);
  transition: transform 1s var(--curva);
}
.anteprima-telefono:hover { transform: rotateY(-4deg) rotateX(2deg); }
.anteprima-schermo { border-radius: 2.2rem; overflow: hidden; background: #f8f4ea; padding: 0 0 1.4rem; height: 34rem; }
.anteprima-barra { display: flex; justify-content: space-between; padding: 1.4rem 1.3rem .9rem; background: var(--notte); color: var(--avorio); font: 500 .66rem var(--f-epigrafe); letter-spacing: .14em; text-transform: uppercase; }
.anteprima-barra span:last-child { color: var(--oro); }
.anteprima-pagina { margin: 1.1rem 1.3rem .8rem; font: 500 3.6rem/1 var(--f-display); color: var(--inchiostro); }
.anteprima-pagina small { display: block; font: 600 .58rem var(--f-ui); letter-spacing: .16em; text-transform: uppercase; color: var(--rame); margin-bottom: .2rem; }
.anteprima-nota { position: relative; margin: 0 .9rem .8rem; padding: 1rem 1rem 1rem 2.6rem; background: #fff; border-radius: .9rem; box-shadow: 0 8px 20px -14px rgba(0,0,0,.25); }
.anteprima-n { position: absolute; left: .9rem; top: .95rem; font: 600 1.05rem var(--f-display); color: var(--rame); }
.anteprima-brano { margin: 0 0 .5rem; padding: .45rem .6rem; background: rgba(63, 156, 146, .1); border-left: 2px solid var(--verderame); font: italic 400 .8rem/1.4 var(--f-testo); color: var(--inchiostro); }
.anteprima-testo { margin: 0; font: 400 .74rem/1.5 var(--f-testo); color: var(--inchiostro-2); }

/* ------------------------------------------------------------ acquista */
.acquista { position: relative; padding: clamp(5rem, 10vw, 9rem) 0; overflow: hidden; isolation: isolate; }
.acquista-sfondo { position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, var(--notte) 0%, rgba(9,13,12,.82) 40%, rgba(9,13,12,.92) 100%), url(img/bronzo-sfondo.jpg) center / cover; }
.acquista-scheda {
  display: grid; grid-template-columns: minmax(0, 18rem) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
  max-width: 64rem; margin-inline: auto; padding: clamp(2rem, 4vw, 3.4rem);
  background: rgba(15, 21, 19, .66); border: 1px solid var(--linea-scura); border-radius: 6px;
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: 0 50px 100px -50px rgba(0, 0, 0, .9);
}
.acquista-copertina { width: 100%; height: auto; border-radius: 2px 5px 5px 2px; box-shadow: -1px 0 0 rgba(255,255,255,.1), 0 30px 60px -20px rgba(0, 0, 0, .9); transform: rotate(-2deg); }
.acquista-testo h2 { font: 500 clamp(2rem, 3.4vw, 2.9rem)/1.05 var(--f-display); margin: 0; }
.acquista-sotto { margin: .7rem 0 0; font: 500 .74rem var(--f-epigrafe); letter-spacing: .3em; text-transform: uppercase; color: var(--verderame-chiaro); }
.acquista-prezzo { margin: 1.6rem 0 1.4rem; font: 500 3.4rem/1 var(--f-display); color: var(--oro); }
.acquista-negozi { display: flex; flex-wrap: wrap; gap: .7rem; }
.acquista-negozi .bottone { min-height: 2.8rem; padding: 0 1.3rem; }
.acquista-libreria { margin: 1rem 0 2rem; font-style: italic; color: rgba(246, 241, 231, .6); font-size: .98rem; }
.acquista-dati { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 1rem 2rem; margin: 0; padding-top: 1.6rem; border-top: 1px solid var(--linea-scura); }
.acquista-dati dt { font: 600 .66rem var(--f-ui); letter-spacing: .14em; text-transform: uppercase; color: rgba(246, 241, 231, .45); }
.acquista-dati dd { margin: .2rem 0 0; font: 400 .92rem var(--f-ui); color: rgba(246, 241, 231, .85); }

/* ------------------------------------------------------------ piede */
.piede { background: #060908; border-top: 1px solid var(--linea-scura); padding: 4rem 0 2rem; font: 400 .9rem var(--f-ui); color: rgba(246, 241, 231, .55); }
.piede-griglia { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.piede-titolo { font: 500 1.5rem/1.15 var(--f-display); color: var(--avorio); margin: 0 0 .6rem; }
.piede nav { display: flex; flex-wrap: wrap; gap: .5rem 1.8rem; align-items: flex-start; }
.piede nav a { text-decoration: none; color: rgba(246, 241, 231, .7); }
.piede nav a:hover { color: var(--oro); }
.piede-legale { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgba(246, 241, 231, .06); font-size: .8rem; }

/* ------------------------------------------------------------ responsive */
@media (max-width: 1240px) {
  .barra-menu { display: grid; }
  .barra-cta { margin-left: auto; }
  .barra-voci {
    position: fixed; inset: 0 0 auto; z-index: -1;
    flex-direction: column; gap: 0; margin: 0;
    padding: 5.4rem clamp(1.25rem, 3vw, 2.5rem) 1.8rem;
    background: rgba(9, 13, 12, .97);
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--linea-scura);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .8);
    transform: translateY(-102%); visibility: hidden;
    transition: transform .5s var(--curva), visibility 0s .5s;
  }
  .barra.menu-aperto .barra-voci { transform: none; visibility: visible; transition: transform .5s var(--curva); }
  .barra-voci a { font: 500 1.6rem/1.2 var(--f-display); color: var(--avorio); padding: .85rem 0; border-bottom: 1px solid var(--linea-scura); }
  .barra-voci a:last-child { border-bottom: 0; }
  .barra-voci a::after { display: none; }
  .barra-voci a:hover { color: var(--oro-chiaro); }
  .scene { grid-template-columns: repeat(2, 1fr); }
  .lettori-elenco { grid-template-columns: repeat(2, 1fr); }
  .struttura-passi { grid-template-columns: repeat(3, 1fr); row-gap: 2rem; }
  .struttura-passi::before { display: none; }
}

@media (max-width: 900px) {
  .eroe { padding-top: 6.5rem; min-height: auto; }
  .eroe-griglia { grid-template-columns: 1fr; text-align: left; }
  .eroe-libro { order: -1; }
  .libro { width: min(230px, 58vw); --ry: 20deg; }
  .eroe-scorri { display: none; }
  .eroe-quadrante { right: 50%; top: 18rem; transform: translate(50%, -50%); width: 150vw; opacity: .4; }
  .anticitera-griglia, .leggi-testa, .autore-griglia, .invito-griglia { grid-template-columns: 1fr; }
  .cronologia { margin-top: 0; }
  .due-colonne { grid-template-columns: 1fr; gap: 1.4rem; }
  .leggi-corpo { grid-template-columns: 1fr; gap: 1.4rem; }
  .leggi-schede { flex-direction: row; overflow-x: auto; border-top: 0; border-bottom: 1px solid var(--linea-chiara); scrollbar-width: none; }
  .leggi-schede::-webkit-scrollbar { display: none; }
  .legge-tab { flex-direction: column; align-items: center; gap: .3rem; padding: .8rem 1rem; border-bottom: 0; flex: 1 0 auto; }
  .legge-tab::before { top: auto; left: 0; right: 0; width: auto; height: 2px; transform: scaleX(0); }
  .legge-tab[aria-selected="true"]::before { transform: scaleX(1); }
  .legge-num { width: auto; font-size: 1.3rem; }
  .legge-nome { font-size: .78rem; }
  .leggi-pannelli { min-height: 0; }
  .autore-ritratto { max-width: 22rem; }
  .invito-anteprima { order: 2; }
  .acquista-scheda { grid-template-columns: 1fr; text-align: left; }
  .acquista-copertina { max-width: 12rem; }
}

@media (max-width: 560px) {
  body { font-size: 1rem; }
  .contenitore, .contenitore.stretto, .eroe-griglia { width: calc(100% - 2.5rem); }
  .barra-marchio span { display: none; }
  .eroe h1 { font-size: clamp(2.6rem, 12.5vw, 3.4rem); }
  .eroe-azioni .bottone { width: 100%; }
  .eroe-dati { gap: 1.8rem; }
  .scene, .lettori-elenco { grid-template-columns: 1fr; }
  .struttura-passi { grid-template-columns: repeat(2, 1fr); }
  .autore-fatti { grid-template-columns: 1fr; gap: .9rem; }
  .invito-campo { flex-wrap: wrap; border-radius: 1.4rem; padding: .7rem .7rem .7rem 1.2rem; }
  .invito-campo .bottone { width: 100%; }
  .anteprima-telefono { width: 16.5rem; }
  .anteprima-schermo { height: 29rem; }
}

/* ------------------------------------------------------------ ascolta: invito nell'apertura */
.eroe-ascolta {
  display: inline-flex; align-items: center; gap: 1rem; margin: 1.6rem 0 0; padding: .45rem 1.4rem .45rem .45rem;
  border: 1px solid rgba(143, 211, 198, .28); border-radius: 999px; background: rgba(9, 13, 12, .45);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  text-align: left; color: var(--avorio);
  transition: border-color .3s, background-color .3s, transform .35s var(--curva);
}
.eroe-ascolta:hover { border-color: var(--verderame-chiaro); background: rgba(63, 156, 146, .12); transform: translateY(-2px); }
.eroe-ascolta-icona {
  position: relative; display: grid; place-items: center; flex: none;
  width: 2.9rem; height: 2.9rem; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #a9e2d6, var(--verderame) 70%);
  box-shadow: 0 0 0 0 rgba(143, 211, 198, .5); animation: richiamo 2.8s var(--curva) infinite;
}
.eroe-ascolta-icona .icona-play { width: 1.15rem; height: 1.15rem; fill: var(--notte); margin-left: 2px; }
@keyframes richiamo { 0% { box-shadow: 0 0 0 0 rgba(143, 211, 198, .45); } 70%, 100% { box-shadow: 0 0 0 14px rgba(143, 211, 198, 0); } }
.onde { display: none; gap: 3px; align-items: center; height: 1.1rem; }
.onde i { display: block; width: 3px; height: 100%; border-radius: 2px; background: var(--notte); animation: onda 1s ease-in-out infinite; transform-origin: 50% 50%; }
.onde i:nth-child(2) { animation-delay: -.25s; } .onde i:nth-child(3) { animation-delay: -.5s; } .onde i:nth-child(4) { animation-delay: -.75s; }
@keyframes onda { 0%, 100% { transform: scaleY(.3); } 50% { transform: scaleY(1); } }
.in-ascolto .eroe-ascolta-icona { animation: none; }
.in-ascolto .eroe-ascolta-icona .icona-play { display: none; }
.in-ascolto .eroe-ascolta-icona .onde { display: flex; }
.eroe-ascolta-testo strong { display: block; font: 600 .98rem/1.2 var(--f-ui); }
.eroe-ascolta-testo small { display: block; margin-top: .15rem; font: 400 .8rem/1.3 var(--f-ui); color: rgba(246, 241, 231, .6); }
.libro .eroe-ascolta {
  position: absolute; z-index: 3; left: -34%; bottom: 9%; margin: 0; white-space: nowrap;
  background: rgba(9, 13, 12, .74); box-shadow: 0 24px 50px -18px rgba(0, 0, 0, .9);
  animation: sale .9s .9s var(--curva) both;
}
.libro .eroe-ascolta:hover { background: rgba(14, 30, 27, .86); }

/* ------------------------------------------------------------ ascolta: sezione */
.ascolta { position: relative; isolation: isolate; overflow: hidden; padding: clamp(5rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem); }
.ascolta-sfondo {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(42rem 34rem at 76% 34%, rgba(63, 156, 146, .2), transparent 70%),
    radial-gradient(30rem 24rem at 10% 90%, rgba(226, 178, 90, .08), transparent 70%),
    linear-gradient(180deg, var(--notte), #0b1412 50%, var(--notte));
}
.ascolta-sfondo::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: radial-gradient(rgba(143, 211, 198, .08) 1px, transparent 1px); background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000, transparent 70%); mask-image: radial-gradient(ellipse at 70% 40%, #000, transparent 70%);
}
.ascolta .occhiello { color: var(--verderame-chiaro); }
.ascolta .titolo-sezione em { color: var(--oro); }
.ascolta-griglia { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.ascolta-lancio { font-size: 1.14rem; color: rgba(246, 241, 231, .78); max-width: 34rem; margin: 0 0 2.4rem; }
.ascolta-lancio em { color: var(--avorio); }

.voce { display: flex; gap: 1.2rem; align-items: flex-start; margin: 0 0 1.6rem; padding: 1.5rem 0 0; border-top: 1px solid var(--linea-scura); max-width: 34rem; }
.voce-segno svg { width: 3rem; height: 3rem; fill: none; stroke: var(--oro); stroke-width: 1.3; stroke-linecap: round; }
.voce p { margin: 0; }
.voce-nome { font: 500 1.75rem/1.1 var(--f-display); color: var(--avorio); }
.voce-ruolo { margin-top: .25rem !important; font: 500 .68rem var(--f-epigrafe); letter-spacing: .2em; text-transform: uppercase; color: var(--oro); }
.voce-bio { margin-top: .8rem !important; font: 400 .95rem/1.6 var(--f-ui); color: rgba(246, 241, 231, .66); }
.voce-bio em { font-family: var(--f-testo); color: var(--avorio); }
.voce-ruoli { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; max-width: 34rem; }
.voce-ruoli li {
  display: flex; flex-direction: column; padding: .55rem .95rem .6rem; border: 1px solid rgba(246, 241, 231, .12); border-radius: .7rem;
  font: 400 .74rem/1.3 var(--f-ui); color: rgba(246, 241, 231, .55); background: rgba(246, 241, 231, .025);
}
.voce-ruoli span { font: italic 500 1.05rem/1.2 var(--f-display); color: var(--avorio); }

/* quadrante */
.lettore { display: flex; flex-direction: column; align-items: center; }
.lettore-quadrante { position: relative; width: min(30rem, 100%); aspect-ratio: 1; }
.lettore-svg { width: 100%; height: 100%; overflow: visible; display: block; }
.lq-onda line { stroke: rgba(143, 211, 198, .24); stroke-width: 2.6; stroke-linecap: round; transition: stroke .3s; }
.lq-onda line.suonata { stroke: var(--oro); }
.lq-anello { fill: none; stroke: rgba(246, 241, 231, .1); stroke-width: 1.5; }
.lq-percorso { fill: none; stroke: var(--oro); stroke-width: 1.5; transform: rotate(-90deg); stroke-dasharray: 917.35; stroke-dashoffset: 917.35; filter: drop-shadow(0 0 6px rgba(226, 178, 90, .6)); }
.lq-tacche line { stroke: rgba(246, 241, 231, .3); stroke-width: 1; }
.lq-tacche line.lunga { stroke: var(--oro); stroke-opacity: .7; }
.lq-tacche text { fill: rgba(246, 241, 231, .5); font: 500 10px var(--f-epigrafe); letter-spacing: .12em; text-anchor: middle; dominant-baseline: middle; }
.lq-tacche .capitolo-segno { fill: var(--verderame-chiaro); stroke: none; }
.lq-ruota { transform-origin: 0 0; }
.lq-dentatura { fill: rgba(226, 178, 90, .06); stroke: rgba(226, 178, 90, .55); stroke-width: .8; }
.lq-ruota circle { fill: none; stroke: rgba(226, 178, 90, .35); stroke-width: .8; }
.lq-ruota line { stroke: rgba(226, 178, 90, .45); stroke-width: 3; stroke-linecap: round; }
.lq-lancetta { transform-origin: 0 0; }
.lq-lancetta line { stroke: var(--oro-chiaro); stroke-width: 1.4; }
.lq-lancetta circle { fill: var(--oro-chiaro); filter: drop-shadow(0 0 6px rgba(240, 207, 142, .9)); }
.lettore-cursore { position: absolute; inset: 2%; border-radius: 50%; cursor: pointer; touch-action: none; }
.lettore-cursore:focus-visible { outline-offset: -4px; }

.lettore-play {
  position: absolute; left: 50%; top: 50%; width: 27%; aspect-ratio: 1; translate: -50% -50%;
  display: grid; place-items: center; border: 0; border-radius: 50%; z-index: 2;
  background: radial-gradient(circle at 35% 28%, #f7dca2, var(--oro) 55%, #a87a33);
  box-shadow: 0 0 0 10px rgba(226, 178, 90, .08), 0 0 0 22px rgba(226, 178, 90, .04), 0 24px 50px -16px rgba(0, 0, 0, .8), inset 0 2px 0 rgba(255, 255, 255, .35);
  transition: transform .4s var(--curva), box-shadow .4s;
}
.lettore-play:hover { transform: scale(1.05); box-shadow: 0 0 0 12px rgba(226, 178, 90, .12), 0 0 0 26px rgba(226, 178, 90, .05), 0 24px 50px -16px rgba(0, 0, 0, .8), inset 0 2px 0 rgba(255, 255, 255, .35); }
.lettore-play svg { width: 36%; height: 36%; fill: var(--notte); }
.lettore-play .icona-play { margin-left: 6%; }
.icona-pausa { display: none; }
.in-ascolto .icona-pausa { display: block; }
.in-ascolto .lettore-play .icona-play, .in-ascolto .mp-play .icona-play { display: none; }
.lettore-tempo {
  position: absolute; left: 50%; top: calc(50% + 19.5%); translate: -50% 0; margin: 0; z-index: 2; pointer-events: none;
  font: 500 .78rem var(--f-ui); font-variant-numeric: tabular-nums; letter-spacing: .06em; color: rgba(246, 241, 231, .7); white-space: nowrap;
}
.lettore-tempo .t-sep { margin: 0 .35em; opacity: .4; }
.lettore-tempo .t-tot { color: rgba(246, 241, 231, .4); }

.lettore-comandi { display: flex; gap: .6rem; margin-top: 1rem; }
.lc {
  position: relative; display: grid; place-items: center; width: 3rem; height: 3rem; padding: 0;
  border: 1px solid rgba(246, 241, 231, .16); border-radius: 50%; background: rgba(246, 241, 231, .03);
  color: rgba(246, 241, 231, .8); font: 600 .78rem var(--f-ui); transition: border-color .25s, color .25s, background-color .25s;
}
.lc:hover { border-color: var(--oro); color: var(--oro-chiaro); background: rgba(226, 178, 90, .06); }
.lc svg { width: 1.3rem; height: 1.3rem; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.lc span { position: absolute; font: 700 .5rem var(--f-ui); top: 50%; left: 50%; translate: -50% -42%; }
.lc-velocita { width: auto; min-width: 3rem; padding: 0 .9rem; border-radius: 999px; font-variant-numeric: tabular-nums; }
.lettore-avviso { min-height: 1.4rem; margin: .7rem 0 0; font: 400 .82rem var(--f-ui); color: var(--verderame-chiaro); text-align: center; }

/* nastro dei sottotitoli */
.nastro { margin: clamp(2.5rem, 5vw, 4rem) auto 0; max-width: 58rem; text-align: center; min-height: 11.5rem; }
.nastro-capitolo { display: inline-flex; align-items: center; gap: .8rem; margin: 0 0 1.2rem; font: 500 .7rem var(--f-epigrafe); letter-spacing: .24em; text-transform: uppercase; color: var(--verderame-chiaro); }
.nastro-num { display: grid; place-items: center; min-width: 1.9rem; height: 1.9rem; padding: 0 .4rem; border: 1px solid currentColor; border-radius: 999px; letter-spacing: .04em; }
.nastro-frase { margin: 0; font: 400 clamp(1.45rem, 2.7vw, 2.25rem)/1.32 var(--f-display); color: rgba(246, 241, 231, .3); transition: opacity .35s; }
.nastro-frase .w { transition: color .25s; }
.nastro-frase .w.detta { color: var(--avorio); }
.nastro-frase .w.ora { color: var(--oro-chiaro); }
.nastro-invito { font-style: italic; color: rgba(246, 241, 231, .45); }
.nastro-frase.cambia { opacity: 0; }

/* capitoli */
.capitoli {
  list-style: none; margin: 2.2rem 0 0; padding: 0; counter-reset: cap;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--linea-scura); border: 1px solid var(--linea-scura); border-radius: 4px; overflow: hidden;
}
.capitoli button {
  position: relative; width: 100%; height: 100%; display: flex; align-items: baseline; gap: .9rem; text-align: left;
  padding: 1.15rem 1.2rem 1.25rem; border: 0; background: var(--notte); color: rgba(246, 241, 231, .7); overflow: hidden;
  transition: background-color .3s, color .3s;
}
.capitoli button::after { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: calc(var(--p, 0) * 100%); background: var(--oro); }
.capitoli button:hover { background: #111a17; color: var(--avorio); }
.capitoli button[aria-current="true"] { background: #13201c; color: var(--avorio); }
.capitoli .cap-num { font: 500 .78rem var(--f-epigrafe); color: var(--oro); min-width: 1.6rem; }
.capitoli .cap-titolo { flex: 1; font: 500 1.12rem/1.25 var(--f-display); }
.capitoli .cap-tempo { font: 500 .72rem var(--f-ui); font-variant-numeric: tabular-nums; color: rgba(246, 241, 231, .4); }

/* fine dell'ascolto */
.lettore-fine {
  margin: 2.4rem auto 0; max-width: 46rem; text-align: center; padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid rgba(226, 178, 90, .3); border-radius: 6px;
  background: radial-gradient(ellipse at 50% 0%, rgba(226, 178, 90, .14), rgba(15, 21, 19, .8) 70%);
  animation: entra .8s var(--curva);
}
.lettore-fine .epigrafe { color: var(--oro); margin: 0 0 .8rem; }
.lettore-fine-titolo { margin: 0 0 .8rem; font: 500 clamp(1.9rem, 3.4vw, 2.8rem)/1.1 var(--f-display); }
.lettore-fine-titolo em { color: var(--oro); }
.lettore-fine > p:not(.epigrafe):not(.lettore-fine-titolo) { color: rgba(246, 241, 231, .7); margin: 0 0 1.6rem; }
.lettore-fine-azioni { display: flex; flex-wrap: wrap; justify-content: center; gap: .8rem; }

/* trascrizione */
.trascrizione { margin: 2.4rem auto 0; max-width: 46rem; border-top: 1px solid var(--linea-scura); }
.trascrizione summary {
  display: flex; justify-content: center; align-items: center; gap: .6rem; padding: 1.3rem 0; cursor: pointer; list-style: none;
  font: 600 .78rem var(--f-ui); letter-spacing: .14em; text-transform: uppercase; color: rgba(246, 241, 231, .7);
}
.trascrizione summary::-webkit-details-marker { display: none; }
.trascrizione summary:hover { color: var(--oro-chiaro); }
.trascrizione summary svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.8; transition: transform .4s var(--curva); }
.trascrizione[open] summary svg { transform: rotate(180deg); }
.trascrizione-corpo { max-height: 30rem; overflow-y: auto; padding: .5rem 1.5rem 1.5rem; scrollbar-width: thin; scrollbar-color: rgba(226, 178, 90, .3) transparent;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 1.5rem, #000 calc(100% - 2rem), transparent); mask-image: linear-gradient(to bottom, transparent, #000 1.5rem, #000 calc(100% - 2rem), transparent); }
.trascrizione-corpo h3 { font: 500 .7rem var(--f-epigrafe); letter-spacing: .22em; text-transform: uppercase; color: var(--verderame-chiaro); margin: 2rem 0 .8rem; }
.trascrizione-corpo h3:first-child { margin-top: 1rem; }
.trascrizione-corpo p { margin: 0 0 1rem; font: 400 1.02rem/1.75 var(--f-testo); color: rgba(246, 241, 231, .55); }
.trascrizione-corpo .fr { cursor: pointer; border-radius: 3px; transition: color .25s, background-color .25s; }
.trascrizione-corpo .fr:hover { color: var(--avorio); }
.trascrizione-corpo .fr.ora { color: var(--avorio); background: rgba(226, 178, 90, .12); box-shadow: 0 0 0 2px rgba(226, 178, 90, .12); }

/* acquista */
.acquista-audio {
  display: inline-flex; align-items: center; gap: .7rem; margin: -1rem 0 2rem; text-decoration: none;
  font: 500 .9rem/1.4 var(--f-ui); color: var(--verderame-chiaro);
}
.acquista-audio > span { display: grid; place-items: center; width: 1.9rem; height: 1.9rem; flex: none; border-radius: 50%; border: 1px solid currentColor; }
.acquista-audio svg { width: .85rem; height: .85rem; fill: currentColor; margin-left: 2px; }
.acquista-audio:hover { color: var(--avorio); }

/* ------------------------------------------------------------ ascolta: lettore fisso */
.miniplayer {
  position: fixed; left: 50%; bottom: max(1rem, env(safe-area-inset-bottom)); z-index: 60;
  width: min(44rem, calc(100% - 2rem)); translate: -50% 0;
  display: flex; align-items: center; gap: .9rem; padding: .55rem .6rem .55rem .55rem;
  background: rgba(15, 21, 19, .86); -webkit-backdrop-filter: blur(20px) saturate(1.4); backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(226, 178, 90, .22); border-radius: 999px; overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .9);
  animation: sale .6s var(--curva);
}
@keyframes sale { from { opacity: 0; transform: translateY(1.5rem); } to { opacity: 1; transform: none; } }
.mp-avanzamento { position: absolute; left: 0; right: 0; top: 0; height: 2px; background: rgba(246, 241, 231, .06); }
.mp-avanzamento span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--bronzo), var(--oro-chiaro)); }
.mp-play { position: relative; display: grid; place-items: center; flex: none; width: 3rem; height: 3rem; padding: 0; border: 0; border-radius: 50%; background: var(--oro); }
.mp-play .mp-ruota { position: absolute; inset: -3px; width: calc(100% + 6px); height: calc(100% + 6px); }
.mp-play .mp-ruota path { fill: none; stroke: rgba(226, 178, 90, .55); stroke-width: 1; }
.in-ascolto .mp-ruota { animation: gira 14s linear infinite; }
.mp-play > svg:not(.mp-ruota) { position: relative; width: 1.1rem; height: 1.1rem; fill: var(--notte); }
.mp-play .icona-play { margin-left: 2px; }
.mp-info { flex: 1; min-width: 0; text-decoration: none; display: flex; flex-direction: column; gap: .1rem; }
.mp-titolo { font: 600 .82rem var(--f-ui); color: var(--avorio); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mp-titolo span { font-weight: 400; color: rgba(246, 241, 231, .5); }
.mp-frase { font: italic 400 .98rem/1.25 var(--f-display); color: rgba(246, 241, 231, .7); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mp-tempo { font: 500 .76rem var(--f-ui); font-variant-numeric: tabular-nums; color: rgba(246, 241, 231, .5); }
.mp-acquista { min-height: 2.4rem; padding: 0 1.1rem; font-size: .82rem; }
.mp-chiudi { display: grid; place-items: center; width: 2.2rem; height: 2.2rem; padding: 0; border: 0; border-radius: 50%; background: transparent; color: rgba(246, 241, 231, .5); flex: none; }
.mp-chiudi:hover { color: var(--avorio); background: rgba(246, 241, 231, .06); }
.mp-chiudi svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }

@media (max-width: 1100px) {
  .capitoli { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .libro .eroe-ascolta { left: 50%; bottom: 3%; translate: -50% 0; }
  .ascolta-griglia { grid-template-columns: 1fr; }
  .lettore { order: -1; }
  .lettore-quadrante { width: min(24rem, 100%); }
}
@media (max-width: 560px) {
  .libro .eroe-ascolta { padding-right: 1.1rem; gap: .8rem; }
  .nastro { min-height: 13rem; }
  .capitoli { grid-template-columns: 1fr; }
  .capitoli button { padding: .95rem 1rem; }
  .voce-ruoli li { flex: 1 1 calc(50% - .5rem); }
  .mp-tempo, .mp-titolo span { display: none; }
  .miniplayer { gap: .7rem; }
  .mp-acquista { padding: 0 .9rem; }
  .trascrizione-corpo { padding-inline: .5rem; }
}
@media (prefers-reduced-motion: reduce) { .eroe-ascolta-icona, .in-ascolto .mp-ruota { animation: none; } }