/* Il Ricettario Proibito · página de venta
   Paleta del libro: crema de fondo, rojo del canal, tinta casi negra. */
:root {
  --crema: #f6efe2;
  --crema-2: #efe4d0;
  --carta: #fffaf1;
  --rosso: #a8261c;
  --rosso-scuro: #7c1a12;
  --oro: #f2c14e;
  --inchiostro: #2a1d16;
  --grigio: #6b5a4c;
  --linea: rgba(42, 29, 22, .14);
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --corsivo: "Playfair Display", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --max: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--crema);
  color: var(--inchiostro);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 800; line-height: 1.05; margin: 0 0 .5em; letter-spacing: -.01em; }
h2 { font-size: clamp(32px, 5vw, 58px); max-width: 16ch; }
h2 em, h1 em { font-family: var(--corsivo); font-style: italic; font-weight: 600; color: var(--rosso); }
p { margin: 0 0 1em; }

.kicker {
  font: 600 12px/1.2 var(--sans);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--rosso);
  margin-bottom: 18px;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--rosso);
  color: #fff8ec;
  text-decoration: none;
  font: 600 17px/1 var(--sans);
  padding: 18px 26px;
  border-radius: 999px;
  box-shadow: 0 10px 24px -10px rgba(124, 26, 18, .7);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .25s;
}
.btn:hover { transform: translateY(-2px); background: var(--rosso-scuro); box-shadow: 0 16px 30px -12px rgba(124, 26, 18, .8); }
.btn:focus-visible { outline: 3px solid var(--oro); outline-offset: 3px; }
.btn .prezzo { background: rgba(255, 248, 236, .16); padding: 7px 11px; border-radius: 999px; font-weight: 700; }
.btn-sm { padding: 11px 18px; font-size: 14px; box-shadow: none; }
.btn-chiaro { background: var(--carta); color: var(--rosso); box-shadow: 0 12px 30px -12px rgba(0, 0, 0, .5); }
.btn-chiaro:hover { background: #fff; }
.btn-chiaro .prezzo { background: rgba(168, 38, 28, .1); }
.link { color: var(--inchiostro); font-weight: 600; text-decoration-thickness: 1px; text-underline-offset: 4px; }

/* ---------- Cabecera ---------- */
.top { position: fixed; inset: 0 0 auto; z-index: 20; }
.top-riga {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px var(--gutter);
  transition: background .3s, box-shadow .3s, padding .3s;
}
.top.solida .top-riga, .legale-top .top-riga { background: rgba(246, 239, 226, .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--linea); padding-block: 10px; }

/* Franja negra de anuncio */
.annuncio {
  background: #211a16; color: #f6efe2;
  display: flex; justify-content: center; align-items: center; gap: 14px;
  padding: 9px var(--gutter);
  font: 500 14px/1.3 var(--sans);
}
.annuncio-tag { font-weight: 700; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; }
.annuncio-testo b { font-family: var(--corsivo); font-style: italic; font-weight: 600; color: var(--oro); }
.annuncio-prezzo { background: var(--rosso); color: #fff8ec; font-weight: 700; padding: 5px 12px; border-radius: 8px; letter-spacing: .02em; }
.marca { font: 800 20px/1 var(--serif); text-decoration: none; letter-spacing: -.01em; }
.marca em { font-family: var(--corsivo); font-weight: 600; color: var(--rosso); }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max); margin: 0 auto;
  min-height: 100vh; min-height: 100svh;
  padding: 150px var(--gutter) 60px;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(24px, 5vw, 70px); align-items: center;
}
.hero h1 { font-size: clamp(40px, 5.6vw, 74px); line-height: 1.04; margin-bottom: 24px; font-weight: 700; max-width: 12ch; }
.hero h1 em { display: block; font-size: .96em; line-height: 1.08; margin-top: .06em; }
.lede b { color: var(--inchiostro); font-weight: 600; }
.lede { font-size: clamp(18px, 1.6vw, 21px); color: var(--grigio); max-width: 34em; margin-bottom: 30px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px; margin-bottom: 26px; }
.garanzie { list-style: none; padding: 0; margin: 0 0 24px; display: grid; grid-template-columns: repeat(2, max-content); gap: 12px 30px; font-size: 15.5px; color: var(--grigio); }
.garanzie li { position: relative; padding-left: 32px; line-height: 22px; }
.garanzie li::before {
  content: ""; position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%;
  background: #2f6b4f url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.garanzie b { color: var(--inchiostro); font-weight: 700; }
.btn-grande { font-size: 19px; font-weight: 700; padding: 22px 34px; box-shadow: 0 18px 34px -14px rgba(124, 26, 18, .75); }
.btn-grande .prezzo { background: none; padding: 0; font-size: 21px; }
.cta-nota { margin: 0; color: var(--grigio); font-size: 15px; line-height: 1.45; }

/* Sello sobre el libro */
.sigillo {
  position: absolute; z-index: 2; left: -12%; top: 54%;
  width: clamp(110px, 12vw, 150px); aspect-ratio: 1; border-radius: 50%;
  background: var(--rosso); color: #fff8ec; text-align: center;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 4px solid var(--crema); box-shadow: 0 0 0 2px var(--rosso), 0 18px 30px -12px rgba(70, 15, 8, .6);
  transform: rotate(-8deg);
}
.sigillo b { font: 900 clamp(38px, 4.4vw, 54px)/.9 var(--serif); }
.sigillo span { font: 700 clamp(12px, 1.2vw, 15px)/1.15 var(--sans); }

.hero-libro { position: relative; justify-self: center; width: min(100%, 420px); perspective: 1400px; }
.libro {
  position: relative;
  border-radius: 4px 10px 10px 4px;
  box-shadow: 0 2px 0 #5a120c, 0 40px 60px -20px rgba(70, 20, 10, .55), 0 18px 30px -18px rgba(0, 0, 0, .4);
  transform: rotateY(-14deg) rotateX(3deg);
  transform-style: preserve-3d;
  transition: transform .8s var(--ease);
  will-change: transform;
}
.libro img { border-radius: 4px 10px 10px 4px; }
/* lomo y brillo para dar volumen al libro */
.libro::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 16px; border-radius: 4px 0 0 4px; background: linear-gradient(90deg, rgba(0,0,0,.35), rgba(255,255,255,.12) 55%, rgba(0,0,0,.08)); }
.libro::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(115deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,0) 38%); pointer-events: none; }
.mono-hero { transform: scaleX(-1); position: absolute; width: 46%; right: -26%; bottom: -6%; filter: drop-shadow(0 14px 18px rgba(42, 29, 22, .25)); animation: saluta 5s var(--ease) infinite; transform-origin: 50% 100%; }
@keyframes saluta { 0%, 100% { transform: scaleX(-1) rotate(0); } 50% { transform: scaleX(-1) rotate(3deg) translateY(-6px); } }

/* ---------- Cinta de platos ---------- */
.nastro { overflow: hidden; padding: 10px 0 30px; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.nastro-track { display: flex; gap: 16px; width: max-content; animation: scorri 70s linear infinite; }
.nastro img { width: 220px; height: 160px; object-fit: cover; border-radius: 12px; }
.nastro:hover .nastro-track { animation-play-state: paused; }
@keyframes scorri { to { transform: translateX(calc(-50% - 8px)); } }

/* ---------- Secciones ---------- */
.sezione { max-width: var(--max); margin: 0 auto; padding: clamp(70px, 10vw, 130px) var(--gutter); }
.intro-cols { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 4vw, 56px); font-size: 19px; color: var(--grigio); margin-top: 26px; }
.intro-cols p:first-child::first-letter { font: 900 64px/.8 var(--serif); color: var(--rosso); float: left; margin: 6px 10px 0 0; }

.dentro { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(30px, 5vw, 70px); align-items: center; border-top: 1px solid var(--linea); }
.punti { list-style: none; counter-reset: p; padding: 0; margin: 30px 0 0; }
.punti li { counter-increment: p; display: grid; grid-template-columns: 46px 1fr; padding: 16px 0; border-bottom: 1px solid var(--linea); }
.punti li::before { content: counter(p, decimal-leading-zero); font: 800 15px/1.6 var(--serif); color: var(--rosso); grid-row: span 2; }
.punti b { font-family: var(--serif); font-size: 21px; font-weight: 700; }
.punti span { color: var(--grigio); font-size: 16px; }
.doppia { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0; filter: drop-shadow(0 30px 40px rgba(70, 30, 10, .22)); }
.doppia img { cursor: zoom-in; background: #fff; }
.doppia img:first-child { border-radius: 6px 0 0 6px; box-shadow: inset -12px 0 18px -14px rgba(0,0,0,.4); }
.doppia img:nth-child(2) { border-radius: 0 6px 6px 0; }
.doppia figcaption { grid-column: 1 / -1; text-align: center; font-size: 14px; color: var(--grigio); margin-top: 16px; }

/* Capítulos */
.capitoli { border-top: 1px solid var(--linea); }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 40px; }
.cap { background: var(--carta); border-radius: 16px; overflow: hidden; box-shadow: 0 1px 0 var(--linea), 0 20px 40px -30px rgba(70, 30, 10, .5); display: flex; flex-direction: column; transition: transform .45s var(--ease), box-shadow .45s var(--ease); }
@media (hover: hover) { .cap:hover { transform: translateY(-6px); box-shadow: 0 1px 0 var(--linea), 0 30px 50px -30px rgba(70, 30, 10, .6); } }
.cap-img { aspect-ratio: 4 / 3; overflow: hidden; background: var(--c); }
.cap-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
@media (hover: hover) { .cap:hover .cap-img img { transform: scale(1.05); } }
.cap-body { padding: 22px 24px 24px; border-top: 5px solid var(--c); flex: 1; display: flex; flex-direction: column; }
.cap-num { font: 600 12px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--c); margin-bottom: 10px; }
.cap h3 { font-size: 26px; margin-bottom: 10px; }
.cap-body > p:not(.cap-num) { color: var(--grigio); font-size: 15.5px; }
.cap details { margin-top: auto; border-top: 1px solid var(--linea); padding-top: 12px; }
.cap summary { cursor: pointer; font-weight: 600; color: var(--c); list-style: none; display: flex; justify-content: space-between; }
.cap summary::-webkit-details-marker { display: none; }
.cap summary::after { content: "+"; font-size: 22px; line-height: 1; transition: transform .3s var(--ease); }
.cap details[open] summary::after { transform: rotate(45deg); }
.lista { list-style: none; padding: 0; margin: 14px 0 0; }
.lista li { display: grid; grid-template-columns: 30px 1fr; gap: 4px; padding: 8px 0; border-bottom: 1px dashed var(--linea); font-size: 15px; }
.lista li:last-child { border-bottom: 0; }
.lista .n { font: 800 14px/1.5 var(--serif); color: var(--c); }
.lista b { display: block; font-weight: 600; }
.lista i { display: block; color: var(--grigio); font-size: 14px; }

/* Hojear */
.sfoglia { border-top: 1px solid var(--linea); }
.pagine { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 30px 4px 26px; margin: 0 calc(var(--gutter) * -1); padding-inline: var(--gutter); scrollbar-width: thin; }
.pagine img { flex: 0 0 auto; width: clamp(220px, 26vw, 300px); scroll-snap-align: start; border-radius: 6px; background: #fff; box-shadow: 0 20px 34px -22px rgba(70, 30, 10, .55); cursor: zoom-in; transition: transform .45s var(--ease); }
@media (hover: hover) { .pagine img:hover { transform: translateY(-6px) rotate(-1deg); } }
.nota { color: var(--grigio); max-width: 40em; }

/* Para quién */
.perchi { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; border-top: 1px solid var(--linea); }
.perchi-col { background: var(--carta); border-radius: 16px; padding: clamp(24px, 3vw, 38px); }
.perchi-col:last-of-type { background: var(--crema-2); }
.perchi h3 { font-size: 28px; }
.perchi ul { list-style: none; padding: 0; margin: 0; }
.perchi li { padding: 10px 0 10px 32px; position: relative; border-bottom: 1px solid var(--linea); }
.perchi li:last-child { border-bottom: 0; }
.perchi .si li::before, .perchi .no li::before { position: absolute; left: 0; top: 9px; font-weight: 700; }
.perchi .si li::before { content: "✓"; color: #2f6b4f; }
.perchi .no li::before { content: "✕"; color: var(--rosso); }
.mono-perchi { position: absolute; width: 110px; right: calc(var(--gutter) + 20px); top: calc(clamp(70px, 10vw, 130px) - 118px); }

/* Quiénes somos */
.chi { display: grid; grid-template-columns: 300px 1fr; gap: clamp(24px, 5vw, 70px); align-items: center; border-top: 1px solid var(--linea); }
.chi p { color: var(--grigio); font-size: 18px; max-width: 34em; }
.social { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.social a { display: inline-block; padding: 10px 18px; border: 1px solid var(--linea); border-radius: 999px; text-decoration: none; font-weight: 600; font-size: 15px; transition: background .25s, color .25s, border-color .25s; }
.social a:hover { background: var(--inchiostro); color: var(--crema); border-color: var(--inchiostro); }

/* FAQ */
.faq { border-top: 1px solid var(--linea); }
.faq-list { margin-top: 30px; max-width: 820px; }
.faq details { border-bottom: 1px solid var(--linea); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; position: relative; font: 700 20px/1.3 var(--serif); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font: 400 28px/1 var(--sans); color: var(--rosso); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--grigio); padding-bottom: 20px; margin: 0; max-width: 46em; }

/* Cierre */
.finale {
  background: radial-gradient(120% 120% at 20% 0%, #c33b2b 0%, var(--rosso) 40%, #5e140d 100%);
  color: #fff8ec;
  display: grid; grid-template-columns: 300px 1fr; gap: clamp(28px, 5vw, 70px); align-items: center;
  padding: clamp(70px, 9vw, 120px) max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter)));
}
.finale h2 { color: #fff8ec; max-width: 15ch; }
.finale p { color: rgba(255, 248, 236, .82); }
.finale-libro { border-radius: 4px 8px 8px 4px; transform: rotate(-4deg); box-shadow: 0 40px 60px -24px rgba(0, 0, 0, .6); }
.finale .piccolo { font-size: 14px; margin-top: 16px; }

/* Pie */
.piede { max-width: var(--max); margin: 0 auto; padding: 40px var(--gutter) 110px; color: var(--grigio); font-size: 14px; }
.piede nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 14px 0; }
.piede nav a { font-weight: 600; color: var(--inchiostro); }

/* Barra fija de compra (aparece al bajar) */
.barra-fissa {
  position: fixed; z-index: 30; left: 50%; bottom: 16px;
  width: min(720px, calc(100% - 24px));
  display: flex; align-items: center; gap: 14px;
  background: var(--carta); color: var(--inchiostro);
  padding: 8px 8px 8px 12px; border-radius: 999px;
  border: 1px solid rgba(42, 29, 22, .12);
  box-shadow: 0 14px 36px -12px rgba(42, 29, 22, .35), 0 2px 6px rgba(42, 29, 22, .08);
  transform: translate(-50%, 160%); transition: transform .5s var(--ease);
}
.barra-fissa.on { transform: translate(-50%, 0); }
.barra-fissa img { width: 34px; border-radius: 3px; box-shadow: 0 3px 8px rgba(0,0,0,.3); }
.barra-titolo { flex: 1; min-width: 0; line-height: 1.2; }
.barra-titolo b { display: block; font: 800 19px/1.15 var(--serif); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.barra-titolo span { color: var(--grigio); font-size: 14px; }
.barra-fissa .btn { padding: 15px 24px; font-weight: 700; box-shadow: none; white-space: nowrap; }
.barra-fissa .btn .prezzo { background: none; padding: 0; }

/* Zoom de páginas */
.zoom { position: fixed; inset: 0; z-index: 50; background: rgba(30, 18, 12, .86); display: grid; place-items: center; padding: 20px; cursor: zoom-out; }
.zoom[hidden] { display: none; }
.zoom img { max-height: 92vh; width: auto; border-radius: 6px; box-shadow: 0 30px 60px rgba(0, 0, 0, .5); }

/* ---------- Aparición al hacer scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); animation: aparece 0s 6s forwards; }
@keyframes aparece { to { opacity: 1; transform: none; } }
.js .reveal.visto { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }

/* ---------- Páginas legales ---------- */
.legale { max-width: 760px; margin: 0 auto; padding: 120px var(--gutter) 60px; }
.legale-top { position: fixed; }
.legale h1 { font-size: clamp(36px, 6vw, 56px); }
.legale h2 { font-size: 24px; max-width: none; margin-top: 1.6em; }
.legale p, .legale li { color: var(--grigio); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .dentro { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .top .btn-sm { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 96px; text-align: left; }
  .hero-libro { order: -1; width: min(64%, 280px); margin-bottom: 10px; }
  .mono-hero { width: 52%; right: -42%; }
  .btn { width: 100%; justify-content: center; }
  .cta-row .link { margin: 0 auto; }
  .intro-cols, .perchi, .chi, .finale { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .mono-perchi { display: none; }
  .chi img { width: 200px; margin: 0 auto; }
  .finale-libro { width: 200px; margin: 0 auto; }
  .nastro img { width: 160px; height: 120px; }
  .annuncio { gap: 8px; font-size: 12.5px; padding-block: 7px; }
  .annuncio-testo { display: none; }
  .annuncio::after { content: "Il Ricettario Proibito è uscito"; }
  .annuncio-prezzo { order: 3; padding: 4px 9px; }
  .hero { padding-top: 120px; }
  .cta-nota br { display: none; }
  .cta-nota { text-align: center; width: 100%; }
  .garanzie { grid-template-columns: 1fr; font-size: 15px; gap: 10px; }
  .sigillo { left: -18%; top: 58%; width: 96px; }
  .sigillo b { font-size: 34px; }
  .sigillo span { font-size: 11px; }
  .barra-fissa { bottom: 10px; gap: 10px; padding: 6px 6px 6px 10px; }
  .barra-titolo b { font-size: 14.5px; white-space: normal; line-height: 1.1; }
  .barra-titolo span { font-size: 12px; }
  .barra-fissa .btn { width: auto; padding: 13px 16px; font-size: 15px; }
}

/* Solo se frenan los efectos que se repiten sin parar */
@media (prefers-reduced-motion: reduce) {
  .mono-hero { animation: none; }
  .nastro-track { animation-duration: 140s; }
}